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_IN_E(wname, stname, wslot, wreg, wshift, winvert, \
177 { .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
178 .reg = wreg, .shift = wshift, .invert = winvert, \
179 .event = wevent, .event_flags = wflags }
180 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \
181 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
182 .reg = wreg, .shift = wshift, .invert = winvert }
183 #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wslot, wreg, wshift, winvert, \
185 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
186 .reg = wreg, .shift = wshift, .invert = winvert, \
187 .event = wevent, .event_flags = wflags }
188 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
189 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
190 .shift = wshift, .invert = winvert}
191 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
193 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
194 .shift = wshift, .invert = winvert, \
195 .event = wevent, .event_flags = wflags}
196 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
197 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
198 .shift = wshift, .invert = winvert}
199 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
201 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
202 .shift = wshift, .invert = winvert, \
203 .event = wevent, .event_flags = wflags}
205 /* generic widgets */
206 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
207 { .id = wid, .name = wname, .kcontrols = NULL, .num_kcontrols = 0, \
208 .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \
209 .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \
210 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
211 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
212 { .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \
213 .shift = wshift, .invert = winvert, .event = wevent, \
214 .event_flags = wflags}
216 /* dapm kcontrol types */
217 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
218 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
219 .info = snd_soc_info_volsw, \
220 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
221 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
222 #define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, max, invert, \
224 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
225 .info = snd_soc_info_volsw, \
226 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
227 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\
228 ((max) << 16) | ((invert) << 24) }
229 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
230 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
231 .info = snd_soc_info_volsw, \
232 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
233 .tlv.p = (tlv_array), \
234 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
235 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
236 #define SOC_DAPM_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, \
238 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
239 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
240 .tlv.p = (tlv_array), \
241 .info = snd_soc_info_volsw, \
242 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
243 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\
244 ((max) << 16) | ((invert) << 24) }
245 #define SOC_DAPM_ENUM(xname, xenum) \
246 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
247 .info = snd_soc_info_enum_double, \
248 .get = snd_soc_dapm_get_enum_double, \
249 .put = snd_soc_dapm_put_enum_double, \
250 .private_value = (unsigned long)&xenum }
251 #define SOC_DAPM_ENUM_VIRT(xname, xenum) \
252 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
253 .info = snd_soc_info_enum_double, \
254 .get = snd_soc_dapm_get_enum_virt, \
255 .put = snd_soc_dapm_put_enum_virt, \
256 .private_value = (unsigned long)&xenum }
257 #define SOC_DAPM_VALUE_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_value_enum_double, \
261 .put = snd_soc_dapm_put_value_enum_double, \
262 .private_value = (unsigned long)&xenum }
263 #define SOC_DAPM_PIN_SWITCH(xname) \
264 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
265 .info = snd_soc_dapm_info_pin_switch, \
266 .get = snd_soc_dapm_get_pin_switch, \
267 .put = snd_soc_dapm_put_pin_switch, \
268 .private_value = (unsigned long)xname }
270 /* dapm stream operations */
271 #define SND_SOC_DAPM_STREAM_NOP 0x0
272 #define SND_SOC_DAPM_STREAM_START 0x1
273 #define SND_SOC_DAPM_STREAM_STOP 0x2
274 #define SND_SOC_DAPM_STREAM_SUSPEND 0x4
275 #define SND_SOC_DAPM_STREAM_RESUME 0x8
276 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10
277 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20
279 /* dapm event types */
280 #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */
281 #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */
282 #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */
283 #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */
284 #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */
285 #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */
286 #define SND_SOC_DAPM_PRE_POST_PMD \
287 (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
289 /* convenience event type detection */
290 #define SND_SOC_DAPM_EVENT_ON(e) \
291 (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
292 #define SND_SOC_DAPM_EVENT_OFF(e) \
293 (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
295 struct snd_soc_dapm_widget
;
296 enum snd_soc_dapm_type
;
297 struct snd_soc_dapm_path
;
298 struct snd_soc_dapm_pin
;
299 struct snd_soc_dapm_route
;
300 struct snd_soc_dapm_context
;
302 int dapm_reg_event(struct snd_soc_dapm_widget
*w
,
303 struct snd_kcontrol
*kcontrol
, int event
);
306 int snd_soc_dapm_put_volsw(struct snd_kcontrol
*kcontrol
,
307 struct snd_ctl_elem_value
*ucontrol
);
308 int snd_soc_dapm_get_volsw(struct snd_kcontrol
*kcontrol
,
309 struct snd_ctl_elem_value
*ucontrol
);
310 int snd_soc_dapm_get_enum_double(struct snd_kcontrol
*kcontrol
,
311 struct snd_ctl_elem_value
*ucontrol
);
312 int snd_soc_dapm_put_enum_double(struct snd_kcontrol
*kcontrol
,
313 struct snd_ctl_elem_value
*ucontrol
);
314 int snd_soc_dapm_get_enum_virt(struct snd_kcontrol
*kcontrol
,
315 struct snd_ctl_elem_value
*ucontrol
);
316 int snd_soc_dapm_put_enum_virt(struct snd_kcontrol
*kcontrol
,
317 struct snd_ctl_elem_value
*ucontrol
);
318 int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol
*kcontrol
,
319 struct snd_ctl_elem_value
*ucontrol
);
320 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol
*kcontrol
,
321 struct snd_ctl_elem_value
*ucontrol
);
322 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol
*kcontrol
,
323 struct snd_ctl_elem_info
*uinfo
);
324 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol
*kcontrol
,
325 struct snd_ctl_elem_value
*uncontrol
);
326 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol
*kcontrol
,
327 struct snd_ctl_elem_value
*uncontrol
);
328 int snd_soc_dapm_new_control(struct snd_soc_dapm_context
*dapm
,
329 const struct snd_soc_dapm_widget
*widget
);
330 int snd_soc_dapm_new_controls(struct snd_soc_dapm_context
*dapm
,
331 const struct snd_soc_dapm_widget
*widget
,
334 /* dapm path setup */
335 int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context
*dapm
);
336 void snd_soc_dapm_free(struct snd_soc_dapm_context
*dapm
);
337 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context
*dapm
,
338 const struct snd_soc_dapm_route
*route
, int num
);
341 int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime
*rtd
,
342 const char *stream
, int event
);
343 void snd_soc_dapm_shutdown(struct snd_soc_card
*card
);
345 /* dapm sys fs - used by the core */
346 int snd_soc_dapm_sys_add(struct device
*dev
);
347 void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context
*dapm
);
349 /* dapm audio pin control and status */
350 int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context
*dapm
,
352 int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context
*dapm
,
354 int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context
*dapm
, const char *pin
);
355 int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context
*dapm
,
357 int snd_soc_dapm_sync(struct snd_soc_dapm_context
*dapm
);
358 int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context
*dapm
,
360 int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context
*dapm
,
363 /* dapm widget types */
364 enum snd_soc_dapm_type
{
365 snd_soc_dapm_input
= 0, /* input pin */
366 snd_soc_dapm_output
, /* output pin */
367 snd_soc_dapm_mux
, /* selects 1 analog signal from many inputs */
368 snd_soc_dapm_value_mux
, /* selects 1 analog signal from many inputs */
369 snd_soc_dapm_mixer
, /* mixes several analog signals together */
370 snd_soc_dapm_mixer_named_ctl
, /* mixer with named controls */
371 snd_soc_dapm_pga
, /* programmable gain/attenuation (volume) */
372 snd_soc_dapm_adc
, /* analog to digital converter */
373 snd_soc_dapm_dac
, /* digital to analog converter */
374 snd_soc_dapm_micbias
, /* microphone bias (power) */
375 snd_soc_dapm_mic
, /* microphone */
376 snd_soc_dapm_hp
, /* headphones */
377 snd_soc_dapm_spk
, /* speaker */
378 snd_soc_dapm_line
, /* line input/output */
379 snd_soc_dapm_switch
, /* analog switch */
380 snd_soc_dapm_vmid
, /* codec bias/vmid - to minimise pops */
381 snd_soc_dapm_pre
, /* machine specific pre widget - exec first */
382 snd_soc_dapm_post
, /* machine specific post widget - exec last */
383 snd_soc_dapm_supply
, /* power/clock supply */
384 snd_soc_dapm_aif_in
, /* audio interface input */
385 snd_soc_dapm_aif_out
, /* audio interface output */
389 * DAPM audio route definition.
391 * Defines an audio route originating at source via control and finishing
394 struct snd_soc_dapm_route
{
399 /* Note: currently only supported for links where source is a supply */
400 int (*connected
)(struct snd_soc_dapm_widget
*source
,
401 struct snd_soc_dapm_widget
*sink
);
404 /* dapm audio path between two widgets */
405 struct snd_soc_dapm_path
{
409 /* source (input) and sink (output) widgets */
410 struct snd_soc_dapm_widget
*source
;
411 struct snd_soc_dapm_widget
*sink
;
412 struct snd_kcontrol
*kcontrol
;
415 u32 connect
:1; /* source and sink widgets are connected */
416 u32 walked
:1; /* path has been walked */
418 int (*connected
)(struct snd_soc_dapm_widget
*source
,
419 struct snd_soc_dapm_widget
*sink
);
421 struct list_head list_source
;
422 struct list_head list_sink
;
423 struct list_head list
;
427 struct snd_soc_dapm_widget
{
428 enum snd_soc_dapm_type id
;
429 char *name
; /* widget name */
430 char *sname
; /* stream name */
431 struct snd_soc_codec
*codec
;
432 struct list_head list
;
433 struct snd_soc_dapm_context
*dapm
;
436 short reg
; /* negative reg = no direct dapm */
437 unsigned char shift
; /* bits to shift */
438 unsigned int saved_value
; /* widget saved value */
439 unsigned int value
; /* widget current value */
440 unsigned int mask
; /* non-shifted mask */
441 unsigned int on_val
; /* on state value */
442 unsigned int off_val
; /* off state value */
443 unsigned char power
:1; /* block power status */
444 unsigned char invert
:1; /* invert the power bit */
445 unsigned char active
:1; /* active stream on DAC, ADC's */
446 unsigned char connected
:1; /* connected codec pin */
447 unsigned char new:1; /* cnew complete */
448 unsigned char ext
:1; /* has external widgets */
449 unsigned char force
:1; /* force state */
450 unsigned char ignore_suspend
:1; /* kept enabled over suspend */
452 int (*power_check
)(struct snd_soc_dapm_widget
*w
);
454 /* external events */
455 unsigned short event_flags
; /* flags to specify event types */
456 int (*event
)(struct snd_soc_dapm_widget
*, struct snd_kcontrol
*, int);
458 /* kcontrols that relate to this widget */
460 const struct snd_kcontrol_new
*kcontrols
;
462 /* widget input and outputs */
463 struct list_head sources
;
464 struct list_head sinks
;
466 /* used during DAPM updates */
467 struct list_head power_list
;
471 struct snd_soc_dapm_context
{
473 struct list_head widgets
;
474 struct list_head paths
;
475 enum snd_soc_bias_level bias_level
;
476 enum snd_soc_bias_level suspend_bias_level
;
477 struct delayed_work delayed_work
;
478 unsigned int idle_bias_off
:1; /* Use BIAS_OFF instead of STANDBY */
480 struct device
*dev
; /* from parent - for debug */
481 struct snd_soc_codec
*codec
; /* parent codec */
482 #ifdef CONFIG_DEBUG_FS
483 struct dentry
*debugfs_dapm
;