1 /* SPDX-License-Identifier: GPL-2.0
2  *
3  * linux/sound/soc-dapm.h -- ALSA SoC Dynamic Audio Power Management
4  *
5  * Author:	Liam Girdwood
6  * Created:	Aug 11th 2005
7  * Copyright:	Wolfson Microelectronics. PLC.
8  */
9 
10 #ifndef __LINUX_SND_SOC_DAPM_H
11 #define __LINUX_SND_SOC_DAPM_H
12 
13 #include <linux/types.h>
14 #include <sound/control.h>
15 #include <sound/soc-topology.h>
16 #include <sound/asoc.h>
17 
18 struct device;
19 struct snd_pcm_substream;
20 struct snd_soc_pcm_runtime;
21 struct soc_enum;
22 
23 /* widget has no PM register bit */
24 #define SND_SOC_NOPM	-1
25 
26 /*
27  * SoC dynamic audio power management
28  *
29  * We can have up to 4 power domains
30  *  1. Codec domain - VREF, VMID
31  *     Usually controlled at codec probe/remove, although can be set
32  *     at stream time if power is not needed for sidetone, etc.
33  *  2. Platform/Machine domain - physically connected inputs and outputs
34  *     Is platform/machine and user action specific, is set in the machine
35  *     driver and by userspace e.g when HP are inserted
36  *  3. Path domain - Internal codec path mixers
37  *     Are automatically set when mixer and mux settings are
38  *     changed by the user.
39  *  4. Stream domain - DAC's and ADC's.
40  *     Enabled when stream playback/capture is started.
41  */
42 
43 /* codec domain */
44 #define SND_SOC_DAPM_VMID(wname) \
45 (struct snd_soc_dapm_widget) { \
46 	.id = snd_soc_dapm_vmid, .name = wname, .kcontrol_news = NULL, \
47 	.num_kcontrols = 0}
48 
49 /* platform domain */
50 #define SND_SOC_DAPM_SIGGEN(wname) \
51 (struct snd_soc_dapm_widget) { \
52 	.id = snd_soc_dapm_siggen, .name = wname, .kcontrol_news = NULL, \
53 	.num_kcontrols = 0, .reg = SND_SOC_NOPM }
54 #define SND_SOC_DAPM_SINK(wname) \
55 (struct snd_soc_dapm_widget) { \
56 	.id = snd_soc_dapm_sink, .name = wname, .kcontrol_news = NULL, \
57 	.num_kcontrols = 0, .reg = SND_SOC_NOPM }
58 #define SND_SOC_DAPM_INPUT(wname) \
59 (struct snd_soc_dapm_widget) { \
60 	.id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \
61 	.num_kcontrols = 0, .reg = SND_SOC_NOPM }
62 #define SND_SOC_DAPM_OUTPUT(wname) \
63 (struct snd_soc_dapm_widget) { \
64 	.id = snd_soc_dapm_output, .name = wname, .kcontrol_news = NULL, \
65 	.num_kcontrols = 0, .reg = SND_SOC_NOPM }
66 #define SND_SOC_DAPM_MIC(wname, wevent) \
67 (struct snd_soc_dapm_widget) { \
68 	.id = snd_soc_dapm_mic, .name = wname, .kcontrol_news = NULL, \
69 	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
70 	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
71 #define SND_SOC_DAPM_HP(wname, wevent) \
72 (struct snd_soc_dapm_widget) { \
73 	.id = snd_soc_dapm_hp, .name = wname, .kcontrol_news = NULL, \
74 	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
75 	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
76 #define SND_SOC_DAPM_SPK(wname, wevent) \
77 (struct snd_soc_dapm_widget) { \
78 	.id = snd_soc_dapm_spk, .name = wname, .kcontrol_news = NULL, \
79 	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
80 	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
81 #define SND_SOC_DAPM_LINE(wname, wevent) \
82 (struct snd_soc_dapm_widget) { \
83 	.id = snd_soc_dapm_line, .name = wname, .kcontrol_news = NULL, \
84 	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
85 	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
86 
87 #define SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert) \
88 	.reg = wreg, .mask = 1, .shift = wshift, \
89 	.on_val = winvert ? 0 : 1, .off_val = winvert ? 1 : 0
90 
91 /* path domain */
92 #define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\
93 	 wcontrols, wncontrols) \
94 (struct snd_soc_dapm_widget) { \
95 	.id = snd_soc_dapm_pga, .name = wname, \
96 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
97 	.kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
98 #define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\
99 	 wcontrols, wncontrols) \
100 (struct snd_soc_dapm_widget) { \
101 	.id = snd_soc_dapm_out_drv, .name = wname, \
102 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
103 	.kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
104 #define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \
105 	 wcontrols, wncontrols)\
106 (struct snd_soc_dapm_widget) { \
107 	.id = snd_soc_dapm_mixer, .name = wname, \
108 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
109 	.kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
110 #define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \
111 	 wcontrols, wncontrols)\
112 (struct snd_soc_dapm_widget) { \
113 	.id = snd_soc_dapm_mixer_named_ctl, .name = wname, \
114 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
115 	.kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
116 /* DEPRECATED: use SND_SOC_DAPM_SUPPLY */
117 #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \
118 (struct snd_soc_dapm_widget) { \
119 	.id = snd_soc_dapm_micbias, .name = wname, \
120 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
121 	.kcontrol_news = NULL, .num_kcontrols = 0}
122 #define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \
123 (struct snd_soc_dapm_widget) { \
124 	.id = snd_soc_dapm_switch, .name = wname, \
125 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
126 	.kcontrol_news = wcontrols, .num_kcontrols = 1}
127 #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
128 (struct snd_soc_dapm_widget) { \
129 	.id = snd_soc_dapm_mux, .name = wname, \
130 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
131 	.kcontrol_news = wcontrols, .num_kcontrols = 1}
132 #define SND_SOC_DAPM_DEMUX(wname, wreg, wshift, winvert, wcontrols) \
133 (struct snd_soc_dapm_widget) { \
134 	.id = snd_soc_dapm_demux, .name = wname, \
135 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
136 	.kcontrol_news = wcontrols, .num_kcontrols = 1}
137 
138 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
139 #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
140 	 wcontrols) \
141 (struct snd_soc_dapm_widget) { \
142 	.id = snd_soc_dapm_pga, .name = wname, \
143 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
144 	.kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
145 #define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \
146 	 wcontrols)\
147 (struct snd_soc_dapm_widget) { \
148 	.id = snd_soc_dapm_mixer, .name = wname, \
149 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
150 	.kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
151 #define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \
152 	 wcontrols)\
153 (struct snd_soc_dapm_widget) { \
154 	.id = snd_soc_dapm_mixer_named_ctl, .name = wname, \
155 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
156 	.kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
157 
158 /* path domain with event - event handler must return 0 for success */
159 #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \
160 	wncontrols, wevent, wflags) \
161 (struct snd_soc_dapm_widget) { \
162 	.id = snd_soc_dapm_pga, .name = wname, \
163 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
164 	.kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
165 	.event = wevent, .event_flags = wflags}
166 #define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \
167 	wncontrols, wevent, wflags) \
168 (struct snd_soc_dapm_widget) { \
169 	.id = snd_soc_dapm_out_drv, .name = wname, \
170 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
171 	.kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
172 	.event = wevent, .event_flags = wflags}
173 #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
174 	wncontrols, wevent, wflags) \
175 (struct snd_soc_dapm_widget) { \
176 	.id = snd_soc_dapm_mixer, .name = wname, \
177 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
178 	.kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
179 	.event = wevent, .event_flags = wflags}
180 #define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
181 	wcontrols, wncontrols, wevent, wflags) \
182 (struct snd_soc_dapm_widget) { \
183 	.id = snd_soc_dapm_mixer, .name = wname, \
184 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
185 	.kcontrol_news = wcontrols, \
186 	.num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
187 #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \
188 	wevent, wflags) \
189 (struct snd_soc_dapm_widget) { \
190 	.id = snd_soc_dapm_switch, .name = wname, \
191 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
192 	.kcontrol_news = wcontrols, .num_kcontrols = 1, \
193 	.event = wevent, .event_flags = wflags}
194 #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
195 	wevent, wflags) \
196 (struct snd_soc_dapm_widget) { \
197 	.id = snd_soc_dapm_mux, .name = wname, \
198 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
199 	.kcontrol_news = wcontrols, .num_kcontrols = 1, \
200 	.event = wevent, .event_flags = wflags}
201 
202 /* additional sequencing control within an event type */
203 #define SND_SOC_DAPM_PGA_S(wname, wsubseq, wreg, wshift, winvert, \
204 	wevent, wflags) \
205 (struct snd_soc_dapm_widget) { \
206 	.id = snd_soc_dapm_pga, .name = wname, \
207 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
208 	.event = wevent, .event_flags = wflags, \
209 	.subseq = wsubseq}
210 #define SND_SOC_DAPM_SUPPLY_S(wname, wsubseq, wreg, wshift, winvert, wevent, \
211 	wflags)	\
212 (struct snd_soc_dapm_widget) { \
213 	.id = snd_soc_dapm_supply, .name = wname, \
214 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
215 	.event = wevent, .event_flags = wflags, .subseq = wsubseq}
216 
217 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
218 #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
219 	wevent, wflags) \
220 (struct snd_soc_dapm_widget) { \
221 	.id = snd_soc_dapm_pga, .name = wname, \
222 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
223 	.kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
224 	.event = wevent, .event_flags = wflags}
225 #define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
226 	wevent, wflags) \
227 (struct snd_soc_dapm_widget) { \
228 	.id = snd_soc_dapm_mixer, .name = wname, \
229 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
230 	.kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
231 	.event = wevent, .event_flags = wflags}
232 #define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \
233 	wcontrols, wevent, wflags) \
234 (struct snd_soc_dapm_widget) { \
235 	.id = snd_soc_dapm_mixer, .name = wname, \
236 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
237 	.kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
238 	.event = wevent, .event_flags = wflags}
239 
240 /* events that are pre and post DAPM */
241 #define SND_SOC_DAPM_PRE(wname, wevent) \
242 (struct snd_soc_dapm_widget) { \
243 	.id = snd_soc_dapm_pre, .name = wname, .kcontrol_news = NULL, \
244 	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
245 	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
246 #define SND_SOC_DAPM_POST(wname, wevent) \
247 (struct snd_soc_dapm_widget) { \
248 	.id = snd_soc_dapm_post, .name = wname, .kcontrol_news = NULL, \
249 	.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
250 	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
251 
252 /* stream domain */
253 #define SND_SOC_DAPM_AIF_IN(wname, stname, wchan, wreg, wshift, winvert) \
254 (struct snd_soc_dapm_widget) { \
255 	.id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
256 	.channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }
257 #define SND_SOC_DAPM_AIF_IN_E(wname, stname, wchan, wreg, wshift, winvert, \
258 			      wevent, wflags)				\
259 (struct snd_soc_dapm_widget) { \
260 	.id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
261 	.channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
262 	.event = wevent, .event_flags = wflags }
263 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wchan, wreg, wshift, winvert) \
264 (struct snd_soc_dapm_widget) { \
265 	.id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
266 	.channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }
267 #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wchan, wreg, wshift, winvert, \
268 			     wevent, wflags)				\
269 (struct snd_soc_dapm_widget) { \
270 	.id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
271 	.channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
272 	.event = wevent, .event_flags = wflags }
273 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
274 (struct snd_soc_dapm_widget) { \
275 	.id = snd_soc_dapm_dac, .name = wname, .sname = stname, \
276 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert) }
277 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
278 			   wevent, wflags)				\
279 (struct snd_soc_dapm_widget) { \
280 	.id = snd_soc_dapm_dac, .name = wname, .sname = stname, \
281 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
282 	.event = wevent, .event_flags = wflags}
283 
284 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
285 (struct snd_soc_dapm_widget) { \
286 	.id = snd_soc_dapm_adc, .name = wname, .sname = stname, \
287 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }
288 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
289 			   wevent, wflags)				\
290 (struct snd_soc_dapm_widget) { \
291 	.id = snd_soc_dapm_adc, .name = wname, .sname = stname, \
292 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
293 	.event = wevent, .event_flags = wflags}
294 #define SND_SOC_DAPM_CLOCK_SUPPLY(wname) \
295 (struct snd_soc_dapm_widget) { \
296 	.id = snd_soc_dapm_clock_supply, .name = wname, \
297 	.reg = SND_SOC_NOPM, .event = dapm_clock_event, \
298 	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }
299 
300 /* generic widgets */
301 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
302 (struct snd_soc_dapm_widget) { \
303 	.id = wid, .name = wname, .kcontrol_news = NULL, .num_kcontrols = 0, \
304 	.reg = wreg, .shift = wshift, .mask = wmask, \
305 	.on_val = won_val, .off_val = woff_val, }
306 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
307 (struct snd_soc_dapm_widget) { \
308 	.id = snd_soc_dapm_supply, .name = wname, \
309 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
310 	.event = wevent, .event_flags = wflags}
311 #define SND_SOC_DAPM_REGULATOR_SUPPLY(wname, wdelay, wflags)	    \
312 (struct snd_soc_dapm_widget) { \
313 	.id = snd_soc_dapm_regulator_supply, .name = wname, \
314 	.reg = SND_SOC_NOPM, .shift = wdelay, .event = dapm_regulator_event, \
315 	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD, \
316 	.on_val = wflags}
317 #define SND_SOC_DAPM_PINCTRL(wname, active, sleep) \
318 (struct snd_soc_dapm_widget) { \
319 	.id = snd_soc_dapm_pinctrl, .name = wname, \
320 	.priv = (&(struct snd_soc_dapm_pinctrl_priv) \
321 		{ .active_state = active, .sleep_state = sleep,}), \
322 	.reg = SND_SOC_NOPM, .event = dapm_pinctrl_event, \
323 	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }
324 
325 
326 
327 /* dapm kcontrol types */
328 #define SOC_DAPM_DOUBLE(xname, reg, lshift, rshift, max, invert) \
329 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
330 	.info = snd_soc_info_volsw, \
331 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
332 	.private_value = SOC_DOUBLE_VALUE(reg, lshift, rshift, max, invert, 0) }
333 #define SOC_DAPM_DOUBLE_R(xname, lreg, rreg, shift, max, invert) \
334 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
335 	.info = snd_soc_info_volsw, \
336 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
337 	.private_value = SOC_DOUBLE_R_VALUE(lreg, rreg, shift, max, invert) }
338 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
339 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
340 	.info = snd_soc_info_volsw, \
341 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
342 	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
343 #define SOC_DAPM_SINGLE_AUTODISABLE(xname, reg, shift, max, invert) \
344 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
345 	.info = snd_soc_info_volsw, \
346 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
347 	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) }
348 #define SOC_DAPM_SINGLE_VIRT(xname, max) \
349 	SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0)
350 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
351 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
352 	.info = snd_soc_info_volsw, \
353 	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
354 	.tlv.p = (tlv_array), \
355 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
356 	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
357 #define SOC_DAPM_SINGLE_TLV_AUTODISABLE(xname, reg, shift, max, invert, tlv_array) \
358 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
359 	.info = snd_soc_info_volsw, \
360 	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
361 	.tlv.p = (tlv_array), \
362 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
363 	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) }
364 #define SOC_DAPM_SINGLE_TLV_VIRT(xname, max, tlv_array) \
365 	SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0, tlv_array)
366 #define SOC_DAPM_ENUM(xname, xenum) \
367 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
368 	.info = snd_soc_info_enum_double, \
369  	.get = snd_soc_dapm_get_enum_double, \
370  	.put = snd_soc_dapm_put_enum_double, \
371   	.private_value = (unsigned long)&xenum }
372 #define SOC_DAPM_ENUM_EXT(xname, xenum, xget, xput) \
373 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
374 	.info = snd_soc_info_enum_double, \
375 	.get = xget, \
376 	.put = xput, \
377 	.private_value = (unsigned long)&xenum }
378 #define SOC_DAPM_PIN_SWITCH(xname) \
379 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
380 	.info = snd_soc_dapm_info_pin_switch, \
381 	.get = snd_soc_dapm_get_pin_switch, \
382 	.put = snd_soc_dapm_put_pin_switch, \
383 	.private_value = (unsigned long)xname }
384 
385 /* dapm stream operations */
386 #define SND_SOC_DAPM_STREAM_NOP			0x0
387 #define SND_SOC_DAPM_STREAM_START		0x1
388 #define SND_SOC_DAPM_STREAM_STOP		0x2
389 #define SND_SOC_DAPM_STREAM_SUSPEND		0x4
390 #define SND_SOC_DAPM_STREAM_RESUME		0x8
391 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH		0x10
392 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE	0x20
393 
394 /* dapm event types */
395 #define SND_SOC_DAPM_PRE_PMU		0x1	/* before widget power up */
396 #define SND_SOC_DAPM_POST_PMU		0x2	/* after  widget power up */
397 #define SND_SOC_DAPM_PRE_PMD		0x4	/* before widget power down */
398 #define SND_SOC_DAPM_POST_PMD		0x8	/* after  widget power down */
399 #define SND_SOC_DAPM_PRE_REG		0x10	/* before audio path setup */
400 #define SND_SOC_DAPM_POST_REG		0x20	/* after  audio path setup */
401 #define SND_SOC_DAPM_WILL_PMU		0x40	/* called at start of sequence */
402 #define SND_SOC_DAPM_WILL_PMD		0x80	/* called at start of sequence */
403 #define SND_SOC_DAPM_PRE_POST_PMD	(SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
404 #define SND_SOC_DAPM_PRE_POST_PMU	(SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)
405 
406 /* convenience event type detection */
407 #define SND_SOC_DAPM_EVENT_ON(e)	(e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
408 #define SND_SOC_DAPM_EVENT_OFF(e)	(e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
409 
410 /* regulator widget flags */
411 #define SND_SOC_DAPM_REGULATOR_BYPASS	0x1	/* bypass when disabled */
412 
413 struct snd_soc_dapm_widget;
414 enum snd_soc_dapm_type;
415 struct snd_soc_dapm_path;
416 struct snd_soc_dapm_pin;
417 struct snd_soc_dapm_route;
418 struct snd_soc_dapm_context;
419 struct regulator;
420 struct snd_soc_dapm_widget_list;
421 struct snd_soc_dapm_update;
422 enum snd_soc_dapm_direction;
423 
424 /*
425  * Bias levels
426  *
427  * @ON:      Bias is fully on for audio playback and capture operations.
428  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
429  *           stream start and stop operations.
430  * @STANDBY: Low power standby state when no playback/capture operations are
431  *           in progress. NOTE: The transition time between STANDBY and ON
432  *           should be as fast as possible and no longer than 10ms.
433  * @OFF:     Power Off. No restrictions on transition times.
434  */
435 enum snd_soc_bias_level {
436 	SND_SOC_BIAS_OFF = 0,
437 	SND_SOC_BIAS_STANDBY = 1,
438 	SND_SOC_BIAS_PREPARE = 2,
439 	SND_SOC_BIAS_ON = 3,
440 };
441 
442 int dapm_regulator_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
443 int dapm_clock_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
444 int dapm_pinctrl_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
445 
446 /* dapm controls */
447 int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
448 int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
449 int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
450 	struct snd_ctl_elem_value *ucontrol);
451 int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
452 	struct snd_ctl_elem_value *ucontrol);
453 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
454 	struct snd_ctl_elem_info *uinfo);
455 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
456 	struct snd_ctl_elem_value *uncontrol);
457 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
458 	struct snd_ctl_elem_value *uncontrol);
459 int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
460 	const struct snd_soc_dapm_widget *widget, int num);
461 struct snd_soc_dapm_widget *snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
462 		const struct snd_soc_dapm_widget *widget);
463 struct snd_soc_dapm_widget *snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
464 		const struct snd_soc_dapm_widget *widget);
465 int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, struct snd_soc_dai *dai);
466 void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w);
467 int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card);
468 void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card);
469 
470 int snd_soc_dapm_update_dai(struct snd_pcm_substream *substream,
471 			    struct snd_pcm_hw_params *params, struct snd_soc_dai *dai);
472 int snd_soc_dapm_widget_name_cmp(struct snd_soc_dapm_widget *widget, const char *s);
473 
474 /* dapm path setup */
475 int snd_soc_dapm_new_widgets(struct snd_soc_card *card);
476 void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
477 void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm,
478 		       struct snd_soc_card *card, struct snd_soc_component *component);
479 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
480 			    const struct snd_soc_dapm_route *route, int num);
481 int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
482 			    const struct snd_soc_dapm_route *route, int num);
483 int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
484 			     const struct snd_soc_dapm_route *route, int num);
485 void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w);
486 
487 /* dapm events */
488 void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, int event);
489 void snd_soc_dapm_stream_stop(struct snd_soc_pcm_runtime *rtd, int stream);
490 void snd_soc_dapm_shutdown(struct snd_soc_card *card);
491 
492 /* external DAPM widget events */
493 int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm,
494 		struct snd_kcontrol *kcontrol, int connect, struct snd_soc_dapm_update *update);
495 int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm,
496 		struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e,
497 		struct snd_soc_dapm_update *update);
498 
499 /* dapm sys fs - used by the core */
500 extern struct attribute *soc_dapm_dev_attrs[];
501 void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, struct dentry *parent);
502 
503 /* dapm audio pin control and status */
504 int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin);
505 int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin);
506 int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, const char *pin);
507 int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin);
508 int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin);
509 int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin);
510 int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, const char *pin);
511 int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm);
512 int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm);
513 int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin);
514 int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin);
515 int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, const char *pin);
516 unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol);
517 
518 /* Mostly internal - should not normally be used */
519 void dapm_mark_endpoints_dirty(struct snd_soc_card *card);
520 
521 /* dapm path query */
522 int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
523 	struct snd_soc_dapm_widget_list **list,
524 	bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, enum snd_soc_dapm_direction));
525 void snd_soc_dapm_dai_free_widgets(struct snd_soc_dapm_widget_list **list);
526 
527 struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm(struct snd_kcontrol *kcontrol);
528 struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget(struct snd_kcontrol *kcontrol);
529 
530 int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level);
531 
532 /* dapm widget types */
533 enum snd_soc_dapm_type {
534 	snd_soc_dapm_input = 0,		/* input pin */
535 	snd_soc_dapm_output,		/* output pin */
536 	snd_soc_dapm_mux,		/* selects 1 analog signal from many inputs */
537 	snd_soc_dapm_demux,		/* connects the input to one of multiple outputs */
538 	snd_soc_dapm_mixer,		/* mixes several analog signals together */
539 	snd_soc_dapm_mixer_named_ctl,	/* mixer with named controls */
540 	snd_soc_dapm_pga,		/* programmable gain/attenuation (volume) */
541 	snd_soc_dapm_out_drv,		/* output driver */
542 	snd_soc_dapm_adc,		/* analog to digital converter */
543 	snd_soc_dapm_dac,		/* digital to analog converter */
544 	snd_soc_dapm_micbias,		/* microphone bias (power) - DEPRECATED: use snd_soc_dapm_supply */
545 	snd_soc_dapm_mic,		/* microphone */
546 	snd_soc_dapm_hp,		/* headphones */
547 	snd_soc_dapm_spk,		/* speaker */
548 	snd_soc_dapm_line,		/* line input/output */
549 	snd_soc_dapm_switch,		/* analog switch */
550 	snd_soc_dapm_vmid,		/* codec bias/vmid - to minimise pops */
551 	snd_soc_dapm_pre,		/* machine specific pre widget - exec first */
552 	snd_soc_dapm_post,		/* machine specific post widget - exec last */
553 	snd_soc_dapm_supply,		/* power/clock supply */
554 	snd_soc_dapm_pinctrl,		/* pinctrl */
555 	snd_soc_dapm_regulator_supply,	/* external regulator */
556 	snd_soc_dapm_clock_supply,	/* external clock */
557 	snd_soc_dapm_aif_in,		/* audio interface input */
558 	snd_soc_dapm_aif_out,		/* audio interface output */
559 	snd_soc_dapm_siggen,		/* signal generator */
560 	snd_soc_dapm_sink,
561 	snd_soc_dapm_dai_in,		/* link to DAI structure */
562 	snd_soc_dapm_dai_out,
563 	snd_soc_dapm_dai_link,		/* link between two DAI structures */
564 	snd_soc_dapm_kcontrol,		/* Auto-disabled kcontrol */
565 	snd_soc_dapm_buffer,		/* DSP/CODEC internal buffer */
566 	snd_soc_dapm_scheduler,		/* DSP/CODEC internal scheduler */
567 	snd_soc_dapm_effect,		/* DSP/CODEC effect component */
568 	snd_soc_dapm_src,		/* DSP/CODEC SRC component */
569 	snd_soc_dapm_asrc,		/* DSP/CODEC ASRC component */
570 	snd_soc_dapm_encoder,		/* FW/SW audio encoder component */
571 	snd_soc_dapm_decoder,		/* FW/SW audio decoder component */
572 
573 	/* Don't edit below this line */
574 	SND_SOC_DAPM_TYPE_COUNT
575 };
576 
577 /*
578  * DAPM audio route definition.
579  *
580  * Defines an audio route originating at source via control and finishing
581  * at sink.
582  */
583 struct snd_soc_dapm_route {
584 	const char *sink;
585 	const char *control;
586 	const char *source;
587 
588 	/* Note: currently only supported for links where source is a supply */
589 	int (*connected)(struct snd_soc_dapm_widget *source,
590 			 struct snd_soc_dapm_widget *sink);
591 
592 	struct snd_soc_dobj dobj;
593 };
594 
595 /* dapm audio path between two widgets */
596 struct snd_soc_dapm_path {
597 	const char *name;
598 
599 	/*
600 	 * source (input) and sink (output) widgets
601 	 * The union is for convience, since it is a lot nicer to type
602 	 * p->source, rather than p->node[SND_SOC_DAPM_DIR_IN]
603 	 */
604 	union {
605 		struct {
606 			struct snd_soc_dapm_widget *source;
607 			struct snd_soc_dapm_widget *sink;
608 		};
609 		struct snd_soc_dapm_widget *node[2];
610 	};
611 
612 	/* status */
613 	u32 connect:1;		/* source and sink widgets are connected */
614 	u32 walking:1;		/* path is in the process of being walked */
615 	u32 weak:1;		/* path ignored for power management */
616 	u32 is_supply:1;	/* At least one of the connected widgets is a supply */
617 
618 	int (*connected)(struct snd_soc_dapm_widget *source,
619 			 struct snd_soc_dapm_widget *sink);
620 
621 	struct list_head list_node[2];
622 	struct list_head list_kcontrol;
623 	struct list_head list;
624 };
625 
626 /* dapm widget */
627 struct snd_soc_dapm_widget {
628 	enum snd_soc_dapm_type id;
629 	const char *name;			/* widget name */
630 	const char *sname;			/* stream name */
631 	struct list_head list;
632 	struct snd_soc_dapm_context *dapm;
633 
634 	void *priv;				/* widget specific data */
635 	struct regulator *regulator;		/* attached regulator */
636 	struct pinctrl *pinctrl;		/* attached pinctrl */
637 
638 	/* dapm control */
639 	int reg;				/* negative reg = no direct dapm */
640 	unsigned char shift;			/* bits to shift */
641 	unsigned int mask;			/* non-shifted mask */
642 	unsigned int on_val;			/* on state value */
643 	unsigned int off_val;			/* off state value */
644 	unsigned char power:1;			/* block power status */
645 	unsigned char active:1;			/* active stream on DAC, ADC's */
646 	unsigned char connected:1;		/* connected codec pin */
647 	unsigned char new:1;			/* cnew complete */
648 	unsigned char force:1;			/* force state */
649 	unsigned char ignore_suspend:1;		/* kept enabled over suspend */
650 	unsigned char new_power:1;		/* power from this run */
651 	unsigned char power_checked:1;		/* power checked this run */
652 	unsigned char is_supply:1;		/* Widget is a supply type widget */
653 	unsigned char is_ep:2;			/* Widget is a endpoint type widget */
654 	unsigned char no_wname_in_kcontrol_name:1; /* No widget name prefix in kcontrol name */
655 	int subseq;				/* sort within widget type */
656 
657 	int (*power_check)(struct snd_soc_dapm_widget *w);
658 
659 	/* external events */
660 	unsigned short event_flags;		/* flags to specify event types */
661 	int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);
662 
663 	/* kcontrols that relate to this widget */
664 	int num_kcontrols;
665 	const struct snd_kcontrol_new *kcontrol_news;
666 	struct snd_kcontrol **kcontrols;
667 	struct snd_soc_dobj dobj;
668 
669 	/* widget input and output edges */
670 	struct list_head edges[2];
671 
672 	/* used during DAPM updates */
673 	struct list_head work_list;
674 	struct list_head power_list;
675 	struct list_head dirty;
676 	int endpoints[2];
677 
678 	struct clk *clk;
679 
680 	int channel;
681 };
682 
683 struct snd_soc_dapm_update {
684 	struct snd_kcontrol *kcontrol;
685 	int reg;
686 	int mask;
687 	int val;
688 	int reg2;
689 	int mask2;
690 	int val2;
691 	bool has_second_set;
692 };
693 
694 /* DAPM context */
695 struct snd_soc_dapm_context {
696 	enum snd_soc_bias_level bias_level;
697 
698 	/* bit field */
699 	unsigned int idle_bias_off:1;		/* Use BIAS_OFF instead of STANDBY */
700 	unsigned int suspend_bias_off:1;	/* Use BIAS_OFF in suspend if the DAPM is idle */
701 
702 	struct device *dev;			/* from parent - for debug */
703 	struct snd_soc_component *component;	/* parent component */
704 	struct snd_soc_card *card;		/* parent card */
705 
706 	/* used during DAPM updates */
707 	enum snd_soc_bias_level target_bias_level;
708 	struct list_head list;
709 
710 	struct snd_soc_dapm_widget *wcache_sink;
711 	struct snd_soc_dapm_widget *wcache_source;
712 
713 #ifdef CONFIG_DEBUG_FS
714 	struct dentry *debugfs_dapm;
715 #endif
716 };
717 
718 /* A list of widgets associated with an object, typically a snd_kcontrol */
719 struct snd_soc_dapm_widget_list {
720 	int num_widgets;
721 	struct snd_soc_dapm_widget *widgets[];
722 };
723 
724 #define for_each_dapm_widgets(list, i, widget)				\
725 	for ((i) = 0;							\
726 	     (i) < list->num_widgets && (widget = list->widgets[i]);	\
727 	     (i)++)
728 
729 struct snd_soc_dapm_stats {
730 	int power_checks;
731 	int path_checks;
732 	int neighbour_checks;
733 };
734 
735 struct snd_soc_dapm_pinctrl_priv {
736 	const char *active_state;
737 	const char *sleep_state;
738 };
739 
740 /**
741  * snd_soc_dapm_init_bias_level() - Initialize DAPM bias level
742  * @dapm: The DAPM context to initialize
743  * @level: The DAPM level to initialize to
744  *
745  * This function only sets the driver internal state of the DAPM level and will
746  * not modify the state of the device. Hence it should not be used during normal
747  * operation, but only to synchronize the internal state to the device state.
748  * E.g. during driver probe to set the DAPM level to the one corresponding with
749  * the power-on reset state of the device.
750  *
751  * To change the DAPM state of the device use snd_soc_dapm_set_bias_level().
752  */
snd_soc_dapm_init_bias_level(struct snd_soc_dapm_context * dapm,enum snd_soc_bias_level level)753 static inline void snd_soc_dapm_init_bias_level(
754 	struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
755 {
756 	dapm->bias_level = level;
757 }
758 
759 /**
760  * snd_soc_dapm_get_bias_level() - Get current DAPM bias level
761  * @dapm: The context for which to get the bias level
762  *
763  * Returns: The current bias level of the passed DAPM context.
764  */
snd_soc_dapm_get_bias_level(struct snd_soc_dapm_context * dapm)765 static inline enum snd_soc_bias_level snd_soc_dapm_get_bias_level(
766 	struct snd_soc_dapm_context *dapm)
767 {
768 	return dapm->bias_level;
769 }
770 
771 enum snd_soc_dapm_direction {
772 	SND_SOC_DAPM_DIR_IN,
773 	SND_SOC_DAPM_DIR_OUT
774 };
775 
776 #define SND_SOC_DAPM_DIR_TO_EP(x) BIT(x)
777 
778 #define SND_SOC_DAPM_EP_SOURCE	SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_IN)
779 #define SND_SOC_DAPM_EP_SINK	SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_OUT)
780 
781 /**
782  * snd_soc_dapm_widget_for_each_path - Iterates over all paths in the
783  *   specified direction of a widget
784  * @w: The widget
785  * @dir: Whether to iterate over the paths where the specified widget is the
786  *       incoming or outgoing widgets
787  * @p: The path iterator variable
788  */
789 #define snd_soc_dapm_widget_for_each_path(w, dir, p) \
790 	list_for_each_entry(p, &w->edges[dir], list_node[dir])
791 
792 /**
793  * snd_soc_dapm_widget_for_each_path_safe - Iterates over all paths in the
794  *   specified direction of a widget
795  * @w: The widget
796  * @dir: Whether to iterate over the paths where the specified widget is the
797  *       incoming or outgoing widgets
798  * @p: The path iterator variable
799  * @next_p: Temporary storage for the next path
800  *
801  *  This function works like snd_soc_dapm_widget_for_each_path, expect that
802  *  it is safe to remove the current path from the list while iterating
803  */
804 #define snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) \
805 	list_for_each_entry_safe(p, next_p, &w->edges[dir], list_node[dir])
806 
807 /**
808  * snd_soc_dapm_widget_for_each_sink_path - Iterates over all paths leaving a
809  *  widget
810  * @w: The widget
811  * @p: The path iterator variable
812  */
813 #define snd_soc_dapm_widget_for_each_sink_path(w, p) \
814 	snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_IN, p)
815 
816 /**
817  * snd_soc_dapm_widget_for_each_source_path - Iterates over all paths leading to
818  *  a widget
819  * @w: The widget
820  * @p: The path iterator variable
821  */
822 #define snd_soc_dapm_widget_for_each_source_path(w, p) \
823 	snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_OUT, p)
824 
825 #endif
826