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808db4a4 RP |
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 | /* | |
b7d2a803 | 25 | * SoC dynamic audio power management |
808db4a4 RP |
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 */ | |
a7a4ac86 | 134 | #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \ |
808db4a4 RP |
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, \ | |
a7a4ac86 PZ |
138 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } |
139 | #define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, max, invert, \ | |
808db4a4 RP |
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) |\ | |
a7a4ac86 PZ |
145 | ((max) << 16) | ((invert) << 24) } |
146 | #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ | |
147 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
148 | .info = snd_soc_info_volsw, \ | |
149 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ | |
150 | .tlv.p = (tlv_array), \ | |
151 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ | |
152 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } | |
153 | #define SOC_DAPM_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, \ | |
154 | power, tlv_array) \ | |
155 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ | |
156 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ | |
157 | .tlv.p = (tlv_array), \ | |
158 | .info = snd_soc_info_volsw, \ | |
159 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ | |
160 | .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\ | |
161 | ((max) << 16) | ((invert) << 24) } | |
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162 | #define SOC_DAPM_ENUM(xname, xenum) \ |
163 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
164 | .info = snd_soc_info_enum_double, \ | |
165 | .get = snd_soc_dapm_get_enum_double, \ | |
166 | .put = snd_soc_dapm_put_enum_double, \ | |
167 | .private_value = (unsigned long)&xenum } | |
168 | ||
169 | /* dapm stream operations */ | |
170 | #define SND_SOC_DAPM_STREAM_NOP 0x0 | |
171 | #define SND_SOC_DAPM_STREAM_START 0x1 | |
172 | #define SND_SOC_DAPM_STREAM_STOP 0x2 | |
173 | #define SND_SOC_DAPM_STREAM_SUSPEND 0x4 | |
174 | #define SND_SOC_DAPM_STREAM_RESUME 0x8 | |
175 | #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10 | |
176 | #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20 | |
177 | ||
178 | /* dapm event types */ | |
179 | #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */ | |
180 | #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */ | |
181 | #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */ | |
182 | #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */ | |
183 | #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */ | |
184 | #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */ | |
185 | ||
186 | /* convenience event type detection */ | |
187 | #define SND_SOC_DAPM_EVENT_ON(e) \ | |
188 | (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)) | |
189 | #define SND_SOC_DAPM_EVENT_OFF(e) \ | |
190 | (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)) | |
191 | ||
192 | struct snd_soc_dapm_widget; | |
193 | enum snd_soc_dapm_type; | |
194 | struct snd_soc_dapm_path; | |
195 | struct snd_soc_dapm_pin; | |
196 | ||
197 | /* dapm controls */ | |
198 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
199 | struct snd_ctl_elem_value *ucontrol); | |
200 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
201 | struct snd_ctl_elem_value *ucontrol); | |
202 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
203 | struct snd_ctl_elem_value *ucontrol); | |
204 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
205 | struct snd_ctl_elem_value *ucontrol); | |
206 | int snd_soc_dapm_new_control(struct snd_soc_codec *codec, | |
207 | const struct snd_soc_dapm_widget *widget); | |
208 | ||
209 | /* dapm path setup */ | |
210 | int snd_soc_dapm_connect_input(struct snd_soc_codec *codec, | |
211 | const char *sink_name, const char *control_name, const char *src_name); | |
212 | int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec); | |
213 | void snd_soc_dapm_free(struct snd_soc_device *socdev); | |
214 | ||
215 | /* dapm events */ | |
216 | int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream, | |
217 | int event); | |
0b4d221b | 218 | int snd_soc_dapm_device_event(struct snd_soc_device *socdev, int event); |
808db4a4 RP |
219 | |
220 | /* dapm sys fs - used by the core */ | |
221 | int snd_soc_dapm_sys_add(struct device *dev); | |
222 | ||
223 | /* dapm audio endpoint control */ | |
224 | int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec, | |
225 | char *pin, int status); | |
226 | int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec); | |
227 | ||
228 | /* dapm widget types */ | |
229 | enum snd_soc_dapm_type { | |
230 | snd_soc_dapm_input = 0, /* input pin */ | |
231 | snd_soc_dapm_output, /* output pin */ | |
232 | snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */ | |
233 | snd_soc_dapm_mixer, /* mixes several analog signals together */ | |
234 | snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */ | |
235 | snd_soc_dapm_adc, /* analog to digital converter */ | |
236 | snd_soc_dapm_dac, /* digital to analog converter */ | |
237 | snd_soc_dapm_micbias, /* microphone bias (power) */ | |
238 | snd_soc_dapm_mic, /* microphone */ | |
239 | snd_soc_dapm_hp, /* headphones */ | |
240 | snd_soc_dapm_spk, /* speaker */ | |
241 | snd_soc_dapm_line, /* line input/output */ | |
242 | snd_soc_dapm_switch, /* analog switch */ | |
243 | snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */ | |
244 | snd_soc_dapm_pre, /* machine specific pre widget - exec first */ | |
245 | snd_soc_dapm_post, /* machine specific post widget - exec last */ | |
246 | }; | |
247 | ||
248 | /* dapm audio path between two widgets */ | |
249 | struct snd_soc_dapm_path { | |
250 | char *name; | |
251 | char *long_name; | |
252 | ||
253 | /* source (input) and sink (output) widgets */ | |
254 | struct snd_soc_dapm_widget *source; | |
255 | struct snd_soc_dapm_widget *sink; | |
256 | struct snd_kcontrol *kcontrol; | |
257 | ||
258 | /* status */ | |
259 | u32 connect:1; /* source and sink widgets are connected */ | |
260 | u32 walked:1; /* path has been walked */ | |
261 | ||
262 | struct list_head list_source; | |
263 | struct list_head list_sink; | |
264 | struct list_head list; | |
265 | }; | |
266 | ||
267 | /* dapm widget */ | |
268 | struct snd_soc_dapm_widget { | |
269 | enum snd_soc_dapm_type id; | |
270 | char *name; /* widget name */ | |
271 | char *sname; /* stream name */ | |
272 | struct snd_soc_codec *codec; | |
273 | struct list_head list; | |
274 | ||
275 | /* dapm control */ | |
276 | short reg; /* negative reg = no direct dapm */ | |
277 | unsigned char shift; /* bits to shift */ | |
278 | unsigned int saved_value; /* widget saved value */ | |
279 | unsigned int value; /* widget current value */ | |
280 | unsigned char power:1; /* block power status */ | |
281 | unsigned char invert:1; /* invert the power bit */ | |
282 | unsigned char active:1; /* active stream on DAC, ADC's */ | |
283 | unsigned char connected:1; /* connected codec pin */ | |
284 | unsigned char new:1; /* cnew complete */ | |
285 | unsigned char ext:1; /* has external widgets */ | |
286 | unsigned char muted:1; /* muted for pop reduction */ | |
287 | unsigned char suspend:1; /* was active before suspend */ | |
288 | unsigned char pmdown:1; /* waiting for timeout */ | |
289 | ||
290 | /* external events */ | |
291 | unsigned short event_flags; /* flags to specify event types */ | |
9af6d956 | 292 | int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int); |
808db4a4 RP |
293 | |
294 | /* kcontrols that relate to this widget */ | |
295 | int num_kcontrols; | |
296 | const struct snd_kcontrol_new *kcontrols; | |
297 | ||
298 | /* widget input and outputs */ | |
299 | struct list_head sources; | |
300 | struct list_head sinks; | |
301 | }; | |
302 | ||
303 | #endif |