2 * linux/sound/soc-dapm.h -- ALSA SoC Dynamic Audio Power Management
4 * Author: Liam Girdwood
5 * Created: Aug 11th 2005
6 * Copyright: Wolfson Microelectronics. PLC.
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.
13 #ifndef __LINUX_SND_SOC_DAPM_H
14 #define __LINUX_SND_SOC_DAPM_H
16 #include <linux/device.h>
17 #include <linux/types.h>
18 #include <sound/control.h>
19 #include <sound/soc.h>
21 /* widget has no PM register bit */
22 #define SND_SOC_NOPM -1
25 * SoC dynamic audio power management
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.
42 #define SND_SOC_DAPM_VMID(wname) \
43 { .id = snd_soc_dapm_vmid, .name = wname, .kcontrols = NULL, \
47 #define SND_SOC_DAPM_INPUT(wname) \
48 { .id = snd_soc_dapm_input, .name = wname, .kcontrols = NULL, \
50 #define SND_SOC_DAPM_OUTPUT(wname) \
51 { .id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \
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}
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}
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}
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}
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, \
98 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
99 #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
101 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
102 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
103 #define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \
105 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
106 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
107 #define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \
109 { .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
110 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \
111 .num_kcontrols = ARRAY_SIZE(wcontrols)}
113 /* path domain with event - event handler must return 0 for success */
114 #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \
115 wncontrols, wevent, wflags) \
116 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
117 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
118 .event = wevent, .event_flags = wflags}
119 #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
120 wncontrols, wevent, wflags) \
121 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
122 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
123 .event = wevent, .event_flags = wflags}
124 #define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
125 wcontrols, wncontrols, wevent, wflags) \
126 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
127 .invert = winvert, .kcontrols = wcontrols, \
128 .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
129 #define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \
130 { .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
131 .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \
132 .event = wevent, .event_flags = wflags}
133 #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \
135 { .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
136 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \
137 .event = wevent, .event_flags = wflags}
138 #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
140 { .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
141 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \
142 .event = wevent, .event_flags = wflags}
144 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
145 #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
147 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
148 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
149 .event = wevent, .event_flags = wflags}
150 #define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
152 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
153 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
154 .event = wevent, .event_flags = wflags}
155 #define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \
156 wcontrols, wevent, wflags) \
157 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
158 .invert = winvert, .kcontrols = wcontrols, \
159 .num_kcontrols = ARRAY_SIZE(wcontrols), .event = wevent, .event_flags = wflags}
161 /* events that are pre and post DAPM */
162 #define SND_SOC_DAPM_PRE(wname, wevent) \
163 { .id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \
164 .num_kcontrols = 0, .event = wevent, \
165 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
166 #define SND_SOC_DAPM_POST(wname, wevent) \
167 { .id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \
168 .num_kcontrols = 0, .event = wevent, \
169 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
172 #define SND_SOC_DAPM_AIF_IN(wname, stname, wslot, wreg, wshift, winvert) \
173 { .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
174 .reg = wreg, .shift = wshift, .invert = winvert }
175 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \
176 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
177 .reg = wreg, .shift = wshift, .invert = winvert }
178 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
179 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
180 .shift = wshift, .invert = winvert}
181 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
183 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
184 .shift = wshift, .invert = winvert, \
185 .event = wevent, .event_flags = wflags}
186 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
187 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
188 .shift = wshift, .invert = winvert}
189 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
191 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
192 .shift = wshift, .invert = winvert, \
193 .event = wevent, .event_flags = wflags}
195 /* generic widgets */
196 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
197 { .id = wid, .name = wname, .kcontrols = NULL, .num_kcontrols = 0, \
198 .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \
199 .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \
200 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
201 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
202 { .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \
203 .shift = wshift, .invert = winvert, .event = wevent, \
204 .event_flags = wflags}
206 /* dapm kcontrol types */
207 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
208 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
209 .info = snd_soc_info_volsw, \
210 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
211 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
212 #define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, max, invert, \
214 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
215 .info = snd_soc_info_volsw, \
216 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
217 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\
218 ((max) << 16) | ((invert) << 24) }
219 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
220 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
221 .info = snd_soc_info_volsw, \
222 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
223 .tlv.p = (tlv_array), \
224 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
225 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
226 #define SOC_DAPM_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, \
228 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
229 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
230 .tlv.p = (tlv_array), \
231 .info = snd_soc_info_volsw, \
232 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
233 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\
234 ((max) << 16) | ((invert) << 24) }
235 #define SOC_DAPM_ENUM(xname, xenum) \
236 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
237 .info = snd_soc_info_enum_double, \
238 .get = snd_soc_dapm_get_enum_double, \
239 .put = snd_soc_dapm_put_enum_double, \
240 .private_value = (unsigned long)&xenum }
241 #define SOC_DAPM_ENUM_VIRT(xname, xenum) \
242 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
243 .info = snd_soc_info_enum_double, \
244 .get = snd_soc_dapm_get_enum_virt, \
245 .put = snd_soc_dapm_put_enum_virt, \
246 .private_value = (unsigned long)&xenum }
247 #define SOC_DAPM_VALUE_ENUM(xname, xenum) \
248 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
249 .info = snd_soc_info_enum_double, \
250 .get = snd_soc_dapm_get_value_enum_double, \
251 .put = snd_soc_dapm_put_value_enum_double, \
252 .private_value = (unsigned long)&xenum }
253 #define SOC_DAPM_PIN_SWITCH(xname) \
254 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
255 .info = snd_soc_dapm_info_pin_switch, \
256 .get = snd_soc_dapm_get_pin_switch, \
257 .put = snd_soc_dapm_put_pin_switch, \
258 .private_value = (unsigned long)xname }
260 /* dapm stream operations */
261 #define SND_SOC_DAPM_STREAM_NOP 0x0
262 #define SND_SOC_DAPM_STREAM_START 0x1
263 #define SND_SOC_DAPM_STREAM_STOP 0x2
264 #define SND_SOC_DAPM_STREAM_SUSPEND 0x4
265 #define SND_SOC_DAPM_STREAM_RESUME 0x8
266 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10
267 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20
269 /* dapm event types */
270 #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */
271 #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */
272 #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */
273 #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */
274 #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */
275 #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */
277 /* convenience event type detection */
278 #define SND_SOC_DAPM_EVENT_ON(e) \
279 (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
280 #define SND_SOC_DAPM_EVENT_OFF(e) \
281 (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
283 struct snd_soc_dapm_widget
;
284 enum snd_soc_dapm_type
;
285 struct snd_soc_dapm_path
;
286 struct snd_soc_dapm_pin
;
287 struct snd_soc_dapm_route
;
289 int dapm_reg_event(struct snd_soc_dapm_widget
*w
,
290 struct snd_kcontrol
*kcontrol
, int event
);
293 int snd_soc_dapm_put_volsw(struct snd_kcontrol
*kcontrol
,
294 struct snd_ctl_elem_value
*ucontrol
);
295 int snd_soc_dapm_get_volsw(struct snd_kcontrol
*kcontrol
,
296 struct snd_ctl_elem_value
*ucontrol
);
297 int snd_soc_dapm_get_enum_double(struct snd_kcontrol
*kcontrol
,
298 struct snd_ctl_elem_value
*ucontrol
);
299 int snd_soc_dapm_put_enum_double(struct snd_kcontrol
*kcontrol
,
300 struct snd_ctl_elem_value
*ucontrol
);
301 int snd_soc_dapm_get_enum_virt(struct snd_kcontrol
*kcontrol
,
302 struct snd_ctl_elem_value
*ucontrol
);
303 int snd_soc_dapm_put_enum_virt(struct snd_kcontrol
*kcontrol
,
304 struct snd_ctl_elem_value
*ucontrol
);
305 int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol
*kcontrol
,
306 struct snd_ctl_elem_value
*ucontrol
);
307 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol
*kcontrol
,
308 struct snd_ctl_elem_value
*ucontrol
);
309 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol
*kcontrol
,
310 struct snd_ctl_elem_info
*uinfo
);
311 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol
*kcontrol
,
312 struct snd_ctl_elem_value
*uncontrol
);
313 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol
*kcontrol
,
314 struct snd_ctl_elem_value
*uncontrol
);
315 int snd_soc_dapm_new_control(struct snd_soc_codec
*codec
,
316 const struct snd_soc_dapm_widget
*widget
);
317 int snd_soc_dapm_new_controls(struct snd_soc_codec
*codec
,
318 const struct snd_soc_dapm_widget
*widget
,
321 /* dapm path setup */
322 int snd_soc_dapm_new_widgets(struct snd_soc_codec
*codec
);
323 void snd_soc_dapm_free(struct snd_soc_device
*socdev
);
324 int snd_soc_dapm_add_routes(struct snd_soc_codec
*codec
,
325 const struct snd_soc_dapm_route
*route
, int num
);
328 int snd_soc_dapm_stream_event(struct snd_soc_codec
*codec
, char *stream
,
330 void snd_soc_dapm_shutdown(struct snd_soc_device
*socdev
);
332 /* dapm sys fs - used by the core */
333 int snd_soc_dapm_sys_add(struct device
*dev
);
334 void snd_soc_dapm_debugfs_init(struct snd_soc_codec
*codec
);
336 /* dapm audio pin control and status */
337 int snd_soc_dapm_enable_pin(struct snd_soc_codec
*codec
, const char *pin
);
338 int snd_soc_dapm_disable_pin(struct snd_soc_codec
*codec
, const char *pin
);
339 int snd_soc_dapm_nc_pin(struct snd_soc_codec
*codec
, const char *pin
);
340 int snd_soc_dapm_get_pin_status(struct snd_soc_codec
*codec
, const char *pin
);
341 int snd_soc_dapm_sync(struct snd_soc_codec
*codec
);
342 int snd_soc_dapm_force_enable_pin(struct snd_soc_codec
*codec
,
344 int snd_soc_dapm_ignore_suspend(struct snd_soc_codec
*codec
, const char *pin
);
346 /* dapm widget types */
347 enum snd_soc_dapm_type
{
348 snd_soc_dapm_input
= 0, /* input pin */
349 snd_soc_dapm_output
, /* output pin */
350 snd_soc_dapm_mux
, /* selects 1 analog signal from many inputs */
351 snd_soc_dapm_value_mux
, /* selects 1 analog signal from many inputs */
352 snd_soc_dapm_mixer
, /* mixes several analog signals together */
353 snd_soc_dapm_mixer_named_ctl
, /* mixer with named controls */
354 snd_soc_dapm_pga
, /* programmable gain/attenuation (volume) */
355 snd_soc_dapm_adc
, /* analog to digital converter */
356 snd_soc_dapm_dac
, /* digital to analog converter */
357 snd_soc_dapm_micbias
, /* microphone bias (power) */
358 snd_soc_dapm_mic
, /* microphone */
359 snd_soc_dapm_hp
, /* headphones */
360 snd_soc_dapm_spk
, /* speaker */
361 snd_soc_dapm_line
, /* line input/output */
362 snd_soc_dapm_switch
, /* analog switch */
363 snd_soc_dapm_vmid
, /* codec bias/vmid - to minimise pops */
364 snd_soc_dapm_pre
, /* machine specific pre widget - exec first */
365 snd_soc_dapm_post
, /* machine specific post widget - exec last */
366 snd_soc_dapm_supply
, /* power/clock supply */
367 snd_soc_dapm_aif_in
, /* audio interface input */
368 snd_soc_dapm_aif_out
, /* audio interface output */
372 * DAPM audio route definition.
374 * Defines an audio route originating at source via control and finishing
377 struct snd_soc_dapm_route
{
382 /* Note: currently only supported for links where source is a supply */
383 int (*connected
)(struct snd_soc_dapm_widget
*source
,
384 struct snd_soc_dapm_widget
*sink
);
387 /* dapm audio path between two widgets */
388 struct snd_soc_dapm_path
{
392 /* source (input) and sink (output) widgets */
393 struct snd_soc_dapm_widget
*source
;
394 struct snd_soc_dapm_widget
*sink
;
395 struct snd_kcontrol
*kcontrol
;
398 u32 connect
:1; /* source and sink widgets are connected */
399 u32 walked
:1; /* path has been walked */
401 int (*connected
)(struct snd_soc_dapm_widget
*source
,
402 struct snd_soc_dapm_widget
*sink
);
404 struct list_head list_source
;
405 struct list_head list_sink
;
406 struct list_head list
;
410 struct snd_soc_dapm_widget
{
411 enum snd_soc_dapm_type id
;
412 char *name
; /* widget name */
413 char *sname
; /* stream name */
414 struct snd_soc_codec
*codec
;
415 struct list_head list
;
418 short reg
; /* negative reg = no direct dapm */
419 unsigned char shift
; /* bits to shift */
420 unsigned int saved_value
; /* widget saved value */
421 unsigned int value
; /* widget current value */
422 unsigned int mask
; /* non-shifted mask */
423 unsigned int on_val
; /* on state value */
424 unsigned int off_val
; /* off state value */
425 unsigned char power
:1; /* block power status */
426 unsigned char invert
:1; /* invert the power bit */
427 unsigned char active
:1; /* active stream on DAC, ADC's */
428 unsigned char connected
:1; /* connected codec pin */
429 unsigned char new:1; /* cnew complete */
430 unsigned char ext
:1; /* has external widgets */
431 unsigned char force
:1; /* force state */
432 unsigned char ignore_suspend
:1; /* kept enabled over suspend */
434 int (*power_check
)(struct snd_soc_dapm_widget
*w
);
436 /* external events */
437 unsigned short event_flags
; /* flags to specify event types */
438 int (*event
)(struct snd_soc_dapm_widget
*, struct snd_kcontrol
*, int);
440 /* kcontrols that relate to this widget */
442 const struct snd_kcontrol_new
*kcontrols
;
444 /* widget input and outputs */
445 struct list_head sources
;
446 struct list_head sinks
;
448 /* used during DAPM updates */
449 struct list_head power_list
;