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Diffstat (limited to 'include/sound/soc-dapm.h')
-rw-r--r-- | include/sound/soc-dapm.h | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h new file mode 100644 index 000000000000..2b1ae8edc43c --- /dev/null +++ b/include/sound/soc-dapm.h | |||
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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 | /* | ||
25 | * SoC dynamic audio power managment | ||
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} | ||
79 | #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \ | ||
80 | { .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \ | ||
81 | .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0} | ||
82 | #define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \ | ||
83 | { .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \ | ||
84 | .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} | ||
85 | #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \ | ||
86 | { .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \ | ||
87 | .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} | ||
88 | |||
89 | /* path domain with event - event handler must return 0 for success */ | ||
90 | #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \ | ||
91 | wncontrols, wevent, wflags) \ | ||
92 | { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ | ||
93 | .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ | ||
94 | .event = wevent, .event_flags = wflags} | ||
95 | #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \ | ||
96 | wncontrols, wevent, wflags) \ | ||
97 | { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ | ||
98 | .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ | ||
99 | .event = wevent, .event_flags = wflags} | ||
100 | #define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \ | ||
101 | { .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \ | ||
102 | .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \ | ||
103 | .event = wevent, .event_flags = wflags} | ||
104 | #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \ | ||
105 | wevent, wflags) \ | ||
106 | { .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \ | ||
107 | .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1 \ | ||
108 | .event = wevent, .event_flags = wflags} | ||
109 | #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \ | ||
110 | wevent, wflags) \ | ||
111 | { .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \ | ||
112 | .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \ | ||
113 | .event = wevent, .event_flags = wflags} | ||
114 | |||
115 | /* events that are pre and post DAPM */ | ||
116 | #define SND_SOC_DAPM_PRE(wname, wevent) \ | ||
117 | { .id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \ | ||
118 | .num_kcontrols = 0, .event = wevent, \ | ||
119 | .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD} | ||
120 | #define SND_SOC_DAPM_POST(wname, wevent) \ | ||
121 | { .id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \ | ||
122 | .num_kcontrols = 0, .event = wevent, \ | ||
123 | .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD} | ||
124 | |||
125 | /* stream domain */ | ||
126 | #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \ | ||
127 | { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \ | ||
128 | .shift = wshift, .invert = winvert} | ||
129 | #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \ | ||
130 | { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \ | ||
131 | .shift = wshift, .invert = winvert} | ||
132 | |||
133 | /* dapm kcontrol types */ | ||
134 | #define SOC_DAPM_SINGLE(xname, reg, shift, mask, invert) \ | ||
135 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | ||
136 | .info = snd_soc_info_volsw, \ | ||
137 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ | ||
138 | .private_value = SOC_SINGLE_VALUE(reg, shift, mask, invert) } | ||
139 | #define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, mask, invert, \ | ||
140 | power) \ | ||
141 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ | ||
142 | .info = snd_soc_info_volsw, \ | ||
143 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ | ||
144 | .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\ | ||
145 | ((mask) << 16) | ((invert) << 24) } | ||
146 | #define SOC_DAPM_ENUM(xname, xenum) \ | ||
147 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | ||
148 | .info = snd_soc_info_enum_double, \ | ||
149 | .get = snd_soc_dapm_get_enum_double, \ | ||
150 | .put = snd_soc_dapm_put_enum_double, \ | ||
151 | .private_value = (unsigned long)&xenum } | ||
152 | |||
153 | /* dapm stream operations */ | ||
154 | #define SND_SOC_DAPM_STREAM_NOP 0x0 | ||
155 | #define SND_SOC_DAPM_STREAM_START 0x1 | ||
156 | #define SND_SOC_DAPM_STREAM_STOP 0x2 | ||
157 | #define SND_SOC_DAPM_STREAM_SUSPEND 0x4 | ||
158 | #define SND_SOC_DAPM_STREAM_RESUME 0x8 | ||
159 | #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10 | ||
160 | #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20 | ||
161 | |||
162 | /* dapm event types */ | ||
163 | #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */ | ||
164 | #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */ | ||
165 | #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */ | ||
166 | #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */ | ||
167 | #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */ | ||
168 | #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */ | ||
169 | |||
170 | /* convenience event type detection */ | ||
171 | #define SND_SOC_DAPM_EVENT_ON(e) \ | ||
172 | (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)) | ||
173 | #define SND_SOC_DAPM_EVENT_OFF(e) \ | ||
174 | (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)) | ||
175 | |||
176 | struct snd_soc_dapm_widget; | ||
177 | enum snd_soc_dapm_type; | ||
178 | struct snd_soc_dapm_path; | ||
179 | struct snd_soc_dapm_pin; | ||
180 | |||
181 | /* dapm controls */ | ||
182 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | ||
183 | struct snd_ctl_elem_value *ucontrol); | ||
184 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | ||
185 | struct snd_ctl_elem_value *ucontrol); | ||
186 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | ||
187 | struct snd_ctl_elem_value *ucontrol); | ||
188 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | ||
189 | struct snd_ctl_elem_value *ucontrol); | ||
190 | int snd_soc_dapm_new_control(struct snd_soc_codec *codec, | ||
191 | const struct snd_soc_dapm_widget *widget); | ||
192 | |||
193 | /* dapm path setup */ | ||
194 | int snd_soc_dapm_connect_input(struct snd_soc_codec *codec, | ||
195 | const char *sink_name, const char *control_name, const char *src_name); | ||
196 | int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec); | ||
197 | void snd_soc_dapm_free(struct snd_soc_device *socdev); | ||
198 | |||
199 | /* dapm events */ | ||
200 | int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream, | ||
201 | int event); | ||
202 | |||
203 | /* dapm sys fs - used by the core */ | ||
204 | int snd_soc_dapm_sys_add(struct device *dev); | ||
205 | |||
206 | /* dapm audio endpoint control */ | ||
207 | int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec, | ||
208 | char *pin, int status); | ||
209 | int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec); | ||
210 | |||
211 | /* dapm widget types */ | ||
212 | enum snd_soc_dapm_type { | ||
213 | snd_soc_dapm_input = 0, /* input pin */ | ||
214 | snd_soc_dapm_output, /* output pin */ | ||
215 | snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */ | ||
216 | snd_soc_dapm_mixer, /* mixes several analog signals together */ | ||
217 | snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */ | ||
218 | snd_soc_dapm_adc, /* analog to digital converter */ | ||
219 | snd_soc_dapm_dac, /* digital to analog converter */ | ||
220 | snd_soc_dapm_micbias, /* microphone bias (power) */ | ||
221 | snd_soc_dapm_mic, /* microphone */ | ||
222 | snd_soc_dapm_hp, /* headphones */ | ||
223 | snd_soc_dapm_spk, /* speaker */ | ||
224 | snd_soc_dapm_line, /* line input/output */ | ||
225 | snd_soc_dapm_switch, /* analog switch */ | ||
226 | snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */ | ||
227 | snd_soc_dapm_pre, /* machine specific pre widget - exec first */ | ||
228 | snd_soc_dapm_post, /* machine specific post widget - exec last */ | ||
229 | }; | ||
230 | |||
231 | /* dapm audio path between two widgets */ | ||
232 | struct snd_soc_dapm_path { | ||
233 | char *name; | ||
234 | char *long_name; | ||
235 | |||
236 | /* source (input) and sink (output) widgets */ | ||
237 | struct snd_soc_dapm_widget *source; | ||
238 | struct snd_soc_dapm_widget *sink; | ||
239 | struct snd_kcontrol *kcontrol; | ||
240 | |||
241 | /* status */ | ||
242 | u32 connect:1; /* source and sink widgets are connected */ | ||
243 | u32 walked:1; /* path has been walked */ | ||
244 | |||
245 | struct list_head list_source; | ||
246 | struct list_head list_sink; | ||
247 | struct list_head list; | ||
248 | }; | ||
249 | |||
250 | /* dapm widget */ | ||
251 | struct snd_soc_dapm_widget { | ||
252 | enum snd_soc_dapm_type id; | ||
253 | char *name; /* widget name */ | ||
254 | char *sname; /* stream name */ | ||
255 | struct snd_soc_codec *codec; | ||
256 | struct list_head list; | ||
257 | |||
258 | /* dapm control */ | ||
259 | short reg; /* negative reg = no direct dapm */ | ||
260 | unsigned char shift; /* bits to shift */ | ||
261 | unsigned int saved_value; /* widget saved value */ | ||
262 | unsigned int value; /* widget current value */ | ||
263 | unsigned char power:1; /* block power status */ | ||
264 | unsigned char invert:1; /* invert the power bit */ | ||
265 | unsigned char active:1; /* active stream on DAC, ADC's */ | ||
266 | unsigned char connected:1; /* connected codec pin */ | ||
267 | unsigned char new:1; /* cnew complete */ | ||
268 | unsigned char ext:1; /* has external widgets */ | ||
269 | unsigned char muted:1; /* muted for pop reduction */ | ||
270 | unsigned char suspend:1; /* was active before suspend */ | ||
271 | unsigned char pmdown:1; /* waiting for timeout */ | ||
272 | |||
273 | /* external events */ | ||
274 | unsigned short event_flags; /* flags to specify event types */ | ||
275 | int (*event)(struct snd_soc_dapm_widget*, int); | ||
276 | |||
277 | /* kcontrols that relate to this widget */ | ||
278 | int num_kcontrols; | ||
279 | const struct snd_kcontrol_new *kcontrols; | ||
280 | |||
281 | /* widget input and outputs */ | ||
282 | struct list_head sources; | ||
283 | struct list_head sinks; | ||
284 | }; | ||
285 | |||
286 | #endif | ||