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ASoC: Factor out DAPM power checks for DACs and ADCs
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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#include <sound/soc.h>
20
21/* widget has no PM register bit */
22#define SND_SOC_NOPM -1
23
24/*
b7d2a803 25 * SoC dynamic audio power management
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26 *
27 * We can have upto 4 power domains
28 * 1. Codec domain - VREF, VMID
29 * Usually controlled at codec probe/remove, although can be set
30 * at stream time if power is not needed for sidetone, etc.
31 * 2. Platform/Machine domain - physically connected inputs and outputs
32 * Is platform/machine and user action specific, is set in the machine
33 * driver and by userspace e.g when HP are inserted
34 * 3. Path domain - Internal codec path mixers
35 * Are automatically set when mixer and mux settings are
36 * changed by the user.
37 * 4. Stream domain - DAC's and ADC's.
38 * Enabled when stream playback/capture is started.
39 */
40
41/* codec domain */
42#define SND_SOC_DAPM_VMID(wname) \
43{ .id = snd_soc_dapm_vmid, .name = wname, .kcontrols = NULL, \
44 .num_kcontrols = 0}
45
46/* platform domain */
47#define SND_SOC_DAPM_INPUT(wname) \
48{ .id = snd_soc_dapm_input, .name = wname, .kcontrols = NULL, \
49 .num_kcontrols = 0}
50#define SND_SOC_DAPM_OUTPUT(wname) \
51{ .id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \
52 .num_kcontrols = 0}
53#define SND_SOC_DAPM_MIC(wname, wevent) \
54{ .id = snd_soc_dapm_mic, .name = wname, .kcontrols = NULL, \
55 .num_kcontrols = 0, .event = wevent, \
56 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
57#define SND_SOC_DAPM_HP(wname, wevent) \
58{ .id = snd_soc_dapm_hp, .name = wname, .kcontrols = NULL, \
59 .num_kcontrols = 0, .event = wevent, \
60 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
61#define SND_SOC_DAPM_SPK(wname, wevent) \
62{ .id = snd_soc_dapm_spk, .name = wname, .kcontrols = NULL, \
63 .num_kcontrols = 0, .event = wevent, \
64 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
65#define SND_SOC_DAPM_LINE(wname, wevent) \
66{ .id = snd_soc_dapm_line, .name = wname, .kcontrols = NULL, \
67 .num_kcontrols = 0, .event = wevent, \
68 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
69
70/* path domain */
71#define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\
72 wcontrols, wncontrols) \
73{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
74 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols}
75#define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \
76 wcontrols, wncontrols)\
77{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
78 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols}
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79#define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \
80 wcontrols, wncontrols)\
81{ .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
82 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \
83 .num_kcontrols = wncontrols}
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84#define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \
85{ .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
86 .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0}
87#define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \
88{ .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
89 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1}
90#define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
91{ .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
92 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1}
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93#define SND_SOC_DAPM_VALUE_MUX(wname, wreg, wshift, winvert, wcontrols) \
94{ .id = snd_soc_dapm_value_mux, .name = wname, .reg = wreg, \
95 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \
96 .num_kcontrols = 1}
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97
98/* path domain with event - event handler must return 0 for success */
99#define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \
100 wncontrols, wevent, wflags) \
101{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
102 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
103 .event = wevent, .event_flags = wflags}
104#define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
105 wncontrols, wevent, wflags) \
106{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
107 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
108 .event = wevent, .event_flags = wflags}
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109#define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
110 wcontrols, wncontrols, wevent, wflags) \
111{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
112 .invert = winvert, .kcontrols = wcontrols, \
113 .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
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114#define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \
115{ .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
116 .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \
117 .event = wevent, .event_flags = wflags}
118#define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \
119 wevent, wflags) \
120{ .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
43d50807 121 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \
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122 .event = wevent, .event_flags = wflags}
123#define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
124 wevent, wflags) \
125{ .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
126 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \
127 .event = wevent, .event_flags = wflags}
128
129/* events that are pre and post DAPM */
130#define SND_SOC_DAPM_PRE(wname, wevent) \
131{ .id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \
132 .num_kcontrols = 0, .event = wevent, \
133 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
134#define SND_SOC_DAPM_POST(wname, wevent) \
135{ .id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \
136 .num_kcontrols = 0, .event = wevent, \
137 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
138
139/* stream domain */
140#define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
141{ .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
142 .shift = wshift, .invert = winvert}
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143#define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
144 wevent, wflags) \
145{ .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
146 .shift = wshift, .invert = winvert, \
147 .event = wevent, .event_flags = wflags}
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148#define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
149{ .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
150 .shift = wshift, .invert = winvert}
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151#define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
152 wevent, wflags) \
153{ .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
154 .shift = wshift, .invert = winvert, \
155 .event = wevent, .event_flags = wflags}
808db4a4 156
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157/* generic register modifier widget */
158#define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
159{ .id = wid, .name = wname, .kcontrols = NULL, .num_kcontrols = 0, \
160 .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \
161 .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \
162 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
163
808db4a4 164/* dapm kcontrol types */
a7a4ac86 165#define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
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166{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
167 .info = snd_soc_info_volsw, \
168 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
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169 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
170#define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, max, invert, \
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171 power) \
172{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
173 .info = snd_soc_info_volsw, \
174 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
175 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\
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176 ((max) << 16) | ((invert) << 24) }
177#define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
178{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
179 .info = snd_soc_info_volsw, \
180 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
181 .tlv.p = (tlv_array), \
182 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
183 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
184#define SOC_DAPM_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, \
185 power, tlv_array) \
186{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
187 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
188 .tlv.p = (tlv_array), \
189 .info = snd_soc_info_volsw, \
190 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
191 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\
192 ((max) << 16) | ((invert) << 24) }
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193#define SOC_DAPM_ENUM(xname, xenum) \
194{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
195 .info = snd_soc_info_enum_double, \
196 .get = snd_soc_dapm_get_enum_double, \
197 .put = snd_soc_dapm_put_enum_double, \
198 .private_value = (unsigned long)&xenum }
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199#define SOC_DAPM_VALUE_ENUM(xname, xenum) \
200{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
74155556 201 .info = snd_soc_info_enum_double, \
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202 .get = snd_soc_dapm_get_value_enum_double, \
203 .put = snd_soc_dapm_put_value_enum_double, \
204 .private_value = (unsigned long)&xenum }
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205#define SOC_DAPM_PIN_SWITCH(xname) \
206{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
207 .info = snd_soc_dapm_info_pin_switch, \
208 .get = snd_soc_dapm_get_pin_switch, \
209 .put = snd_soc_dapm_put_pin_switch, \
210 .private_value = (unsigned long)xname }
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211
212/* dapm stream operations */
213#define SND_SOC_DAPM_STREAM_NOP 0x0
214#define SND_SOC_DAPM_STREAM_START 0x1
215#define SND_SOC_DAPM_STREAM_STOP 0x2
216#define SND_SOC_DAPM_STREAM_SUSPEND 0x4
217#define SND_SOC_DAPM_STREAM_RESUME 0x8
218#define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10
219#define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20
220
221/* dapm event types */
222#define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */
223#define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */
224#define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */
225#define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */
226#define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */
227#define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */
228
229/* convenience event type detection */
230#define SND_SOC_DAPM_EVENT_ON(e) \
231 (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
232#define SND_SOC_DAPM_EVENT_OFF(e) \
233 (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
234
235struct snd_soc_dapm_widget;
236enum snd_soc_dapm_type;
237struct snd_soc_dapm_path;
238struct snd_soc_dapm_pin;
105f1c28 239struct snd_soc_dapm_route;
808db4a4 240
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241int dapm_reg_event(struct snd_soc_dapm_widget *w,
242 struct snd_kcontrol *kcontrol, int event);
243
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244/* dapm controls */
245int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
246 struct snd_ctl_elem_value *ucontrol);
247int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
248 struct snd_ctl_elem_value *ucontrol);
249int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
250 struct snd_ctl_elem_value *ucontrol);
251int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
252 struct snd_ctl_elem_value *ucontrol);
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253int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
254 struct snd_ctl_elem_value *ucontrol);
255int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
256 struct snd_ctl_elem_value *ucontrol);
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257int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
258 struct snd_ctl_elem_info *uinfo);
259int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
260 struct snd_ctl_elem_value *uncontrol);
261int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
262 struct snd_ctl_elem_value *uncontrol);
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263int snd_soc_dapm_new_control(struct snd_soc_codec *codec,
264 const struct snd_soc_dapm_widget *widget);
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265int snd_soc_dapm_new_controls(struct snd_soc_codec *codec,
266 const struct snd_soc_dapm_widget *widget,
267 int num);
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268
269/* dapm path setup */
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270int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec);
271void snd_soc_dapm_free(struct snd_soc_device *socdev);
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272int snd_soc_dapm_add_routes(struct snd_soc_codec *codec,
273 const struct snd_soc_dapm_route *route, int num);
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274
275/* dapm events */
276int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream,
277 int event);
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278int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
279 enum snd_soc_bias_level level);
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280
281/* dapm sys fs - used by the core */
282int snd_soc_dapm_sys_add(struct device *dev);
283
a5302181 284/* dapm audio pin control and status */
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285int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin);
286int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin);
287int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin);
288int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin);
a5302181 289int snd_soc_dapm_sync(struct snd_soc_codec *codec);
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290
291/* dapm widget types */
292enum snd_soc_dapm_type {
293 snd_soc_dapm_input = 0, /* input pin */
294 snd_soc_dapm_output, /* output pin */
295 snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */
2e72f8e3 296 snd_soc_dapm_value_mux, /* selects 1 analog signal from many inputs */
808db4a4 297 snd_soc_dapm_mixer, /* mixes several analog signals together */
ca9c1aae 298 snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */
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299 snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */
300 snd_soc_dapm_adc, /* analog to digital converter */
301 snd_soc_dapm_dac, /* digital to analog converter */
302 snd_soc_dapm_micbias, /* microphone bias (power) */
303 snd_soc_dapm_mic, /* microphone */
304 snd_soc_dapm_hp, /* headphones */
305 snd_soc_dapm_spk, /* speaker */
306 snd_soc_dapm_line, /* line input/output */
307 snd_soc_dapm_switch, /* analog switch */
308 snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */
309 snd_soc_dapm_pre, /* machine specific pre widget - exec first */
310 snd_soc_dapm_post, /* machine specific post widget - exec last */
311};
312
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313/*
314 * DAPM audio route definition.
315 *
316 * Defines an audio route originating at source via control and finishing
317 * at sink.
318 */
319struct snd_soc_dapm_route {
320 const char *sink;
321 const char *control;
322 const char *source;
323};
324
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325/* dapm audio path between two widgets */
326struct snd_soc_dapm_path {
327 char *name;
328 char *long_name;
329
330 /* source (input) and sink (output) widgets */
331 struct snd_soc_dapm_widget *source;
332 struct snd_soc_dapm_widget *sink;
333 struct snd_kcontrol *kcontrol;
334
335 /* status */
336 u32 connect:1; /* source and sink widgets are connected */
337 u32 walked:1; /* path has been walked */
338
339 struct list_head list_source;
340 struct list_head list_sink;
341 struct list_head list;
342};
343
344/* dapm widget */
345struct snd_soc_dapm_widget {
346 enum snd_soc_dapm_type id;
347 char *name; /* widget name */
348 char *sname; /* stream name */
349 struct snd_soc_codec *codec;
350 struct list_head list;
351
352 /* dapm control */
353 short reg; /* negative reg = no direct dapm */
354 unsigned char shift; /* bits to shift */
355 unsigned int saved_value; /* widget saved value */
356 unsigned int value; /* widget current value */
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357 unsigned int mask; /* non-shifted mask */
358 unsigned int on_val; /* on state value */
359 unsigned int off_val; /* off state value */
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360 unsigned char power:1; /* block power status */
361 unsigned char invert:1; /* invert the power bit */
362 unsigned char active:1; /* active stream on DAC, ADC's */
363 unsigned char connected:1; /* connected codec pin */
364 unsigned char new:1; /* cnew complete */
365 unsigned char ext:1; /* has external widgets */
366 unsigned char muted:1; /* muted for pop reduction */
367 unsigned char suspend:1; /* was active before suspend */
368 unsigned char pmdown:1; /* waiting for timeout */
369
370 /* external events */
371 unsigned short event_flags; /* flags to specify event types */
9af6d956 372 int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);
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373
374 /* kcontrols that relate to this widget */
375 int num_kcontrols;
376 const struct snd_kcontrol_new *kcontrols;
377
378 /* widget input and outputs */
379 struct list_head sources;
380 struct list_head sinks;
381};
382
383#endif