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