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>
20 /* widget has no PM register bit */
21 #define SND_SOC_NOPM -1
24 * SoC dynamic audio power management
26 * We can have upto 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.
41 #define SND_SOC_DAPM_VMID(wname) \
42 { .id = snd_soc_dapm_vmid, .name = wname, .kcontrols = NULL, \
46 #define SND_SOC_DAPM_INPUT(wname) \
47 { .id = snd_soc_dapm_input, .name = wname, .kcontrols = NULL, \
49 #define SND_SOC_DAPM_OUTPUT(wname) \
50 { .id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \
52 #define SND_SOC_DAPM_MIC(wname, wevent) \
53 { .id = snd_soc_dapm_mic, .name = wname, .kcontrols = NULL, \
54 .num_kcontrols = 0, .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, .kcontrols = NULL, \
58 .num_kcontrols = 0, .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, .kcontrols = NULL, \
62 .num_kcontrols = 0, .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, .kcontrols = NULL, \
66 .num_kcontrols = 0, .event = wevent, \
67 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
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, .kcontrols = 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, .kcontrols = 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, .kcontrols = 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, .kcontrols = 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, .kcontrols = 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, .kcontrols = 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, .kcontrols = wcontrols, .num_kcontrols = 1}
96 #define SND_SOC_DAPM_VALUE_MUX(wname, wreg, wshift, winvert, wcontrols) \
97 { .id = snd_soc_dapm_value_mux, .name = wname, .reg = wreg, \
98 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \
101 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
102 #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
104 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
105 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
106 #define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \
108 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
109 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
110 #define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \
112 { .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
113 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \
114 .num_kcontrols = ARRAY_SIZE(wcontrols)}
116 /* path domain with event - event handler must return 0 for success */
117 #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \
118 wncontrols, wevent, wflags) \
119 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
120 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
121 .event = wevent, .event_flags = wflags}
122 #define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \
123 wncontrols, wevent, wflags) \
124 { .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
125 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
126 .event = wevent, .event_flags = wflags}
127 #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
128 wncontrols, wevent, wflags) \
129 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
130 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
131 .event = wevent, .event_flags = wflags}
132 #define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
133 wcontrols, wncontrols, wevent, wflags) \
134 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
135 .invert = winvert, .kcontrols = wcontrols, \
136 .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
137 #define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \
138 { .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
139 .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \
140 .event = wevent, .event_flags = wflags}
141 #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \
143 { .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
144 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \
145 .event = wevent, .event_flags = wflags}
146 #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
148 { .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
149 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \
150 .event = wevent, .event_flags = wflags}
152 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
153 #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
155 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
156 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
157 .event = wevent, .event_flags = wflags}
158 #define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
160 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
161 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
162 .event = wevent, .event_flags = wflags}
163 #define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \
164 wcontrols, wevent, wflags) \
165 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
166 .invert = winvert, .kcontrols = wcontrols, \
167 .num_kcontrols = ARRAY_SIZE(wcontrols), .event = wevent, .event_flags = wflags}
169 /* events that are pre and post DAPM */
170 #define SND_SOC_DAPM_PRE(wname, wevent) \
171 { .id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \
172 .num_kcontrols = 0, .event = wevent, \
173 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
174 #define SND_SOC_DAPM_POST(wname, wevent) \
175 { .id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \
176 .num_kcontrols = 0, .event = wevent, \
177 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
180 #define SND_SOC_DAPM_AIF_IN(wname, stname, wslot, wreg, wshift, winvert) \
181 { .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
182 .reg = wreg, .shift = wshift, .invert = winvert }
183 #define SND_SOC_DAPM_AIF_IN_E(wname, stname, wslot, wreg, wshift, winvert, \
185 { .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
186 .reg = wreg, .shift = wshift, .invert = winvert, \
187 .event = wevent, .event_flags = wflags }
188 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \
189 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
190 .reg = wreg, .shift = wshift, .invert = winvert }
191 #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wslot, wreg, wshift, winvert, \
193 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
194 .reg = wreg, .shift = wshift, .invert = winvert, \
195 .event = wevent, .event_flags = wflags }
196 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
197 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
198 .shift = wshift, .invert = winvert}
199 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
201 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
202 .shift = wshift, .invert = winvert, \
203 .event = wevent, .event_flags = wflags}
204 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
205 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
206 .shift = wshift, .invert = winvert}
207 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
209 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
210 .shift = wshift, .invert = winvert, \
211 .event = wevent, .event_flags = wflags}
213 /* generic widgets */
214 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
215 { .id = wid, .name = wname, .kcontrols = NULL, .num_kcontrols = 0, \
216 .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \
217 .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \
218 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
219 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
220 { .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \
221 .shift = wshift, .invert = winvert, .event = wevent, \
222 .event_flags = wflags}
224 /* dapm kcontrol types */
225 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
226 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
227 .info = snd_soc_info_volsw, \
228 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
229 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
230 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
231 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
232 .info = snd_soc_info_volsw, \
233 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
234 .tlv.p = (tlv_array), \
235 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
236 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
237 #define SOC_DAPM_ENUM(xname, xenum) \
238 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
239 .info = snd_soc_info_enum_double, \
240 .get = snd_soc_dapm_get_enum_double, \
241 .put = snd_soc_dapm_put_enum_double, \
242 .private_value = (unsigned long)&xenum }
243 #define SOC_DAPM_ENUM_VIRT(xname, xenum) \
244 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
245 .info = snd_soc_info_enum_double, \
246 .get = snd_soc_dapm_get_enum_virt, \
247 .put = snd_soc_dapm_put_enum_virt, \
248 .private_value = (unsigned long)&xenum }
249 #define SOC_DAPM_VALUE_ENUM(xname, xenum) \
250 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
251 .info = snd_soc_info_enum_double, \
252 .get = snd_soc_dapm_get_value_enum_double, \
253 .put = snd_soc_dapm_put_value_enum_double, \
254 .private_value = (unsigned long)&xenum }
255 #define SOC_DAPM_PIN_SWITCH(xname) \
256 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
257 .info = snd_soc_dapm_info_pin_switch, \
258 .get = snd_soc_dapm_get_pin_switch, \
259 .put = snd_soc_dapm_put_pin_switch, \
260 .private_value = (unsigned long)xname }
262 /* dapm stream operations */
263 #define SND_SOC_DAPM_STREAM_NOP 0x0
264 #define SND_SOC_DAPM_STREAM_START 0x1
265 #define SND_SOC_DAPM_STREAM_STOP 0x2
266 #define SND_SOC_DAPM_STREAM_SUSPEND 0x4
267 #define SND_SOC_DAPM_STREAM_RESUME 0x8
268 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10
269 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20
271 /* dapm event types */
272 #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */
273 #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */
274 #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */
275 #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */
276 #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */
277 #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */
278 #define SND_SOC_DAPM_PRE_POST_PMD \
279 (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
281 /* convenience event type detection */
282 #define SND_SOC_DAPM_EVENT_ON(e) \
283 (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
284 #define SND_SOC_DAPM_EVENT_OFF(e) \
285 (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
287 struct snd_soc_dapm_widget
;
288 enum snd_soc_dapm_type
;
289 struct snd_soc_dapm_path
;
290 struct snd_soc_dapm_pin
;
291 struct snd_soc_dapm_route
;
292 struct snd_soc_dapm_context
;
294 int dapm_reg_event(struct snd_soc_dapm_widget
*w
,
295 struct snd_kcontrol
*kcontrol
, int event
);
298 int snd_soc_dapm_put_volsw(struct snd_kcontrol
*kcontrol
,
299 struct snd_ctl_elem_value
*ucontrol
);
300 int snd_soc_dapm_get_volsw(struct snd_kcontrol
*kcontrol
,
301 struct snd_ctl_elem_value
*ucontrol
);
302 int snd_soc_dapm_get_enum_double(struct snd_kcontrol
*kcontrol
,
303 struct snd_ctl_elem_value
*ucontrol
);
304 int snd_soc_dapm_put_enum_double(struct snd_kcontrol
*kcontrol
,
305 struct snd_ctl_elem_value
*ucontrol
);
306 int snd_soc_dapm_get_enum_virt(struct snd_kcontrol
*kcontrol
,
307 struct snd_ctl_elem_value
*ucontrol
);
308 int snd_soc_dapm_put_enum_virt(struct snd_kcontrol
*kcontrol
,
309 struct snd_ctl_elem_value
*ucontrol
);
310 int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol
*kcontrol
,
311 struct snd_ctl_elem_value
*ucontrol
);
312 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol
*kcontrol
,
313 struct snd_ctl_elem_value
*ucontrol
);
314 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol
*kcontrol
,
315 struct snd_ctl_elem_info
*uinfo
);
316 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol
*kcontrol
,
317 struct snd_ctl_elem_value
*uncontrol
);
318 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol
*kcontrol
,
319 struct snd_ctl_elem_value
*uncontrol
);
320 int snd_soc_dapm_new_control(struct snd_soc_dapm_context
*dapm
,
321 const struct snd_soc_dapm_widget
*widget
);
322 int snd_soc_dapm_new_controls(struct snd_soc_dapm_context
*dapm
,
323 const struct snd_soc_dapm_widget
*widget
,
326 /* dapm path setup */
327 int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context
*dapm
);
328 void snd_soc_dapm_free(struct snd_soc_dapm_context
*dapm
);
329 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context
*dapm
,
330 const struct snd_soc_dapm_route
*route
, int num
);
333 int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime
*rtd
,
334 const char *stream
, int event
);
335 void snd_soc_dapm_shutdown(struct snd_soc_card
*card
);
337 /* dapm sys fs - used by the core */
338 int snd_soc_dapm_sys_add(struct device
*dev
);
339 void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context
*dapm
);
341 /* dapm audio pin control and status */
342 int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context
*dapm
,
344 int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context
*dapm
,
346 int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context
*dapm
, const char *pin
);
347 int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context
*dapm
,
349 int snd_soc_dapm_sync(struct snd_soc_dapm_context
*dapm
);
350 int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context
*dapm
,
352 int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context
*dapm
,
355 /* dapm widget types */
356 enum snd_soc_dapm_type
{
357 snd_soc_dapm_input
= 0, /* input pin */
358 snd_soc_dapm_output
, /* output pin */
359 snd_soc_dapm_mux
, /* selects 1 analog signal from many inputs */
360 snd_soc_dapm_value_mux
, /* selects 1 analog signal from many inputs */
361 snd_soc_dapm_mixer
, /* mixes several analog signals together */
362 snd_soc_dapm_mixer_named_ctl
, /* mixer with named controls */
363 snd_soc_dapm_pga
, /* programmable gain/attenuation (volume) */
364 snd_soc_dapm_out_drv
, /* output driver */
365 snd_soc_dapm_adc
, /* analog to digital converter */
366 snd_soc_dapm_dac
, /* digital to analog converter */
367 snd_soc_dapm_micbias
, /* microphone bias (power) */
368 snd_soc_dapm_mic
, /* microphone */
369 snd_soc_dapm_hp
, /* headphones */
370 snd_soc_dapm_spk
, /* speaker */
371 snd_soc_dapm_line
, /* line input/output */
372 snd_soc_dapm_switch
, /* analog switch */
373 snd_soc_dapm_vmid
, /* codec bias/vmid - to minimise pops */
374 snd_soc_dapm_pre
, /* machine specific pre widget - exec first */
375 snd_soc_dapm_post
, /* machine specific post widget - exec last */
376 snd_soc_dapm_supply
, /* power/clock supply */
377 snd_soc_dapm_aif_in
, /* audio interface input */
378 snd_soc_dapm_aif_out
, /* audio interface output */
382 * DAPM audio route definition.
384 * Defines an audio route originating at source via control and finishing
387 struct snd_soc_dapm_route
{
392 /* Note: currently only supported for links where source is a supply */
393 int (*connected
)(struct snd_soc_dapm_widget
*source
,
394 struct snd_soc_dapm_widget
*sink
);
397 /* dapm audio path between two widgets */
398 struct snd_soc_dapm_path
{
402 /* source (input) and sink (output) widgets */
403 struct snd_soc_dapm_widget
*source
;
404 struct snd_soc_dapm_widget
*sink
;
405 struct snd_kcontrol
*kcontrol
;
408 u32 connect
:1; /* source and sink widgets are connected */
409 u32 walked
:1; /* path has been walked */
411 int (*connected
)(struct snd_soc_dapm_widget
*source
,
412 struct snd_soc_dapm_widget
*sink
);
414 struct list_head list_source
;
415 struct list_head list_sink
;
416 struct list_head list
;
420 struct snd_soc_dapm_widget
{
421 enum snd_soc_dapm_type id
;
422 char *name
; /* widget name */
423 char *sname
; /* stream name */
424 struct snd_soc_codec
*codec
;
425 struct list_head list
;
426 struct snd_soc_dapm_context
*dapm
;
429 short reg
; /* negative reg = no direct dapm */
430 unsigned char shift
; /* bits to shift */
431 unsigned int saved_value
; /* widget saved value */
432 unsigned int value
; /* widget current value */
433 unsigned int mask
; /* non-shifted mask */
434 unsigned int on_val
; /* on state value */
435 unsigned int off_val
; /* off state value */
436 unsigned char power
:1; /* block power status */
437 unsigned char invert
:1; /* invert the power bit */
438 unsigned char active
:1; /* active stream on DAC, ADC's */
439 unsigned char connected
:1; /* connected codec pin */
440 unsigned char new:1; /* cnew complete */
441 unsigned char ext
:1; /* has external widgets */
442 unsigned char force
:1; /* force state */
443 unsigned char ignore_suspend
:1; /* kept enabled over suspend */
445 int (*power_check
)(struct snd_soc_dapm_widget
*w
);
447 /* external events */
448 unsigned short event_flags
; /* flags to specify event types */
449 int (*event
)(struct snd_soc_dapm_widget
*, struct snd_kcontrol
*, int);
451 /* kcontrols that relate to this widget */
453 const struct snd_kcontrol_new
*kcontrols
;
455 /* widget input and outputs */
456 struct list_head sources
;
457 struct list_head sinks
;
459 /* used during DAPM updates */
460 struct list_head power_list
;
464 struct snd_soc_dapm_context
{
465 int n_widgets
; /* number of widgets in this context */
466 enum snd_soc_bias_level bias_level
;
467 enum snd_soc_bias_level suspend_bias_level
;
468 struct delayed_work delayed_work
;
469 unsigned int idle_bias_off
:1; /* Use BIAS_OFF instead of STANDBY */
471 struct device
*dev
; /* from parent - for debug */
472 struct snd_soc_codec
*codec
; /* parent codec */
473 struct snd_soc_card
*card
; /* parent card */
475 /* used during DAPM updates */
477 struct list_head list
;
479 #ifdef CONFIG_DEBUG_FS
480 struct dentry
*debugfs_dapm
;