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 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.
41 #define SND_SOC_DAPM_VMID(wname) \
42 { .id = snd_soc_dapm_vmid, .name = wname, .kcontrol_news = NULL, \
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}
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, \
104 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
105 #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
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, \
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, \
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)}
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, \
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, \
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, \
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}
160 /* additional sequencing control within an event type */
161 #define SND_SOC_DAPM_PGA_S(wname, wsubseq, wreg, wshift, winvert, \
163 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
164 .invert = winvert, .event = wevent, .event_flags = wflags, \
166 #define SND_SOC_DAPM_SUPPLY_S(wname, wsubseq, wreg, wshift, winvert, wevent, \
168 { .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \
169 .shift = wshift, .invert = winvert, .event = wevent, \
170 .event_flags = wflags, .subseq = wsubseq}
172 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
173 #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
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, \
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}
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}
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, \
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, \
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, \
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, \
229 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
230 .shift = wshift, .invert = winvert, \
231 .event = wevent, .event_flags = wflags}
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}
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_VALUE_ENUM(xname, xenum) \
270 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
271 .info = snd_soc_info_enum_double, \
272 .get = snd_soc_dapm_get_value_enum_double, \
273 .put = snd_soc_dapm_put_value_enum_double, \
274 .private_value = (unsigned long)&xenum }
275 #define SOC_DAPM_PIN_SWITCH(xname) \
276 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
277 .info = snd_soc_dapm_info_pin_switch, \
278 .get = snd_soc_dapm_get_pin_switch, \
279 .put = snd_soc_dapm_put_pin_switch, \
280 .private_value = (unsigned long)xname }
282 /* dapm stream operations */
283 #define SND_SOC_DAPM_STREAM_NOP 0x0
284 #define SND_SOC_DAPM_STREAM_START 0x1
285 #define SND_SOC_DAPM_STREAM_STOP 0x2
286 #define SND_SOC_DAPM_STREAM_SUSPEND 0x4
287 #define SND_SOC_DAPM_STREAM_RESUME 0x8
288 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10
289 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20
291 /* dapm event types */
292 #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */
293 #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */
294 #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */
295 #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */
296 #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */
297 #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */
298 #define SND_SOC_DAPM_PRE_POST_PMD \
299 (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
301 /* convenience event type detection */
302 #define SND_SOC_DAPM_EVENT_ON(e) \
303 (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
304 #define SND_SOC_DAPM_EVENT_OFF(e) \
305 (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
307 struct snd_soc_dapm_widget;
308 enum snd_soc_dapm_type;
309 struct snd_soc_dapm_path;
310 struct snd_soc_dapm_pin;
311 struct snd_soc_dapm_route;
312 struct snd_soc_dapm_context;
314 int dapm_reg_event(struct snd_soc_dapm_widget *w,
315 struct snd_kcontrol *kcontrol, int event);
318 int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
319 struct snd_ctl_elem_value *ucontrol);
320 int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
321 struct snd_ctl_elem_value *ucontrol);
322 int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
323 struct snd_ctl_elem_value *ucontrol);
324 int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
325 struct snd_ctl_elem_value *ucontrol);
326 int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol,
327 struct snd_ctl_elem_value *ucontrol);
328 int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol,
329 struct snd_ctl_elem_value *ucontrol);
330 int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
331 struct snd_ctl_elem_value *ucontrol);
332 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
333 struct snd_ctl_elem_value *ucontrol);
334 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
335 struct snd_ctl_elem_info *uinfo);
336 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
337 struct snd_ctl_elem_value *uncontrol);
338 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
339 struct snd_ctl_elem_value *uncontrol);
340 int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
341 const struct snd_soc_dapm_widget *widget);
342 int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
343 const struct snd_soc_dapm_widget *widget,
346 /* dapm path setup */
347 int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm);
348 void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
349 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
350 const struct snd_soc_dapm_route *route, int num);
351 int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
352 const struct snd_soc_dapm_route *route, int num);
355 int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd,
356 const char *stream, int event);
357 void snd_soc_dapm_shutdown(struct snd_soc_card *card);
359 /* dapm sys fs - used by the core */
360 int snd_soc_dapm_sys_add(struct device *dev);
361 void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
362 struct dentry *parent);
364 /* dapm audio pin control and status */
365 int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm,
367 int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm,
369 int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin);
370 int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
372 int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm);
373 int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
375 int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
378 /* dapm widget types */
379 enum snd_soc_dapm_type {
380 snd_soc_dapm_input = 0, /* input pin */
381 snd_soc_dapm_output, /* output pin */
382 snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */
383 snd_soc_dapm_virt_mux, /* virtual version of snd_soc_dapm_mux */
384 snd_soc_dapm_value_mux, /* selects 1 analog signal from many inputs */
385 snd_soc_dapm_mixer, /* mixes several analog signals together */
386 snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */
387 snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */
388 snd_soc_dapm_out_drv, /* output driver */
389 snd_soc_dapm_adc, /* analog to digital converter */
390 snd_soc_dapm_dac, /* digital to analog converter */
391 snd_soc_dapm_micbias, /* microphone bias (power) */
392 snd_soc_dapm_mic, /* microphone */
393 snd_soc_dapm_hp, /* headphones */
394 snd_soc_dapm_spk, /* speaker */
395 snd_soc_dapm_line, /* line input/output */
396 snd_soc_dapm_switch, /* analog switch */
397 snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */
398 snd_soc_dapm_pre, /* machine specific pre widget - exec first */
399 snd_soc_dapm_post, /* machine specific post widget - exec last */
400 snd_soc_dapm_supply, /* power/clock supply */
401 snd_soc_dapm_aif_in, /* audio interface input */
402 snd_soc_dapm_aif_out, /* audio interface output */
406 * DAPM audio route definition.
408 * Defines an audio route originating at source via control and finishing
411 struct snd_soc_dapm_route {
416 /* Note: currently only supported for links where source is a supply */
417 int (*connected)(struct snd_soc_dapm_widget *source,
418 struct snd_soc_dapm_widget *sink);
421 /* dapm audio path between two widgets */
422 struct snd_soc_dapm_path {
426 /* source (input) and sink (output) widgets */
427 struct snd_soc_dapm_widget *source;
428 struct snd_soc_dapm_widget *sink;
429 struct snd_kcontrol *kcontrol;
432 u32 connect:1; /* source and sink widgets are connected */
433 u32 walked:1; /* path has been walked */
434 u32 weak:1; /* path ignored for power management */
436 int (*connected)(struct snd_soc_dapm_widget *source,
437 struct snd_soc_dapm_widget *sink);
439 struct list_head list_source;
440 struct list_head list_sink;
441 struct list_head list;
445 struct snd_soc_dapm_widget {
446 enum snd_soc_dapm_type id;
447 char *name; /* widget name */
448 char *sname; /* stream name */
449 struct snd_soc_codec *codec;
450 struct snd_soc_platform *platform;
451 struct list_head list;
452 struct snd_soc_dapm_context *dapm;
455 short reg; /* negative reg = no direct dapm */
456 unsigned char shift; /* bits to shift */
457 unsigned int saved_value; /* widget saved value */
458 unsigned int value; /* widget current value */
459 unsigned int mask; /* non-shifted mask */
460 unsigned int on_val; /* on state value */
461 unsigned int off_val; /* off state value */
462 unsigned char power:1; /* block power status */
463 unsigned char invert:1; /* invert the power bit */
464 unsigned char active:1; /* active stream on DAC, ADC's */
465 unsigned char connected:1; /* connected codec pin */
466 unsigned char new:1; /* cnew complete */
467 unsigned char ext:1; /* has external widgets */
468 unsigned char force:1; /* force state */
469 unsigned char ignore_suspend:1; /* kept enabled over suspend */
470 int subseq; /* sort within widget type */
472 int (*power_check)(struct snd_soc_dapm_widget *w);
474 /* external events */
475 unsigned short event_flags; /* flags to specify event types */
476 int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);
478 /* kcontrols that relate to this widget */
480 const struct snd_kcontrol_new *kcontrol_news;
481 struct snd_kcontrol **kcontrols;
483 /* widget input and outputs */
484 struct list_head sources;
485 struct list_head sinks;
487 /* used during DAPM updates */
488 struct list_head power_list;
491 struct snd_soc_dapm_update {
492 struct snd_soc_dapm_widget *widget;
493 struct snd_kcontrol *kcontrol;
500 struct snd_soc_dapm_context {
501 int n_widgets; /* number of widgets in this context */
502 enum snd_soc_bias_level bias_level;
503 enum snd_soc_bias_level suspend_bias_level;
504 struct delayed_work delayed_work;
505 unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
507 struct snd_soc_dapm_update *update;
509 void (*seq_notifier)(struct snd_soc_dapm_context *,
510 enum snd_soc_dapm_type, int);
512 struct device *dev; /* from parent - for debug */
513 struct snd_soc_codec *codec; /* parent codec */
514 struct snd_soc_platform *platform; /* parent platform */
515 struct snd_soc_card *card; /* parent card */
517 /* used during DAPM updates */
518 enum snd_soc_bias_level target_bias_level;
519 struct list_head list;
521 #ifdef CONFIG_DEBUG_FS
522 struct dentry *debugfs_dapm;
526 /* A list of widgets associated with an object, typically a snd_kcontrol */
527 struct snd_soc_dapm_widget_list {
529 struct snd_soc_dapm_widget *widgets[0];