1 | /* SPDX-License-Identifier: GPL-2.0 |
2 | * |
3 | * linux/sound/soc-dapm.h -- ALSA SoC Dynamic Audio Power Management |
4 | * |
5 | * Author: Liam Girdwood |
6 | * Created: Aug 11th 2005 |
7 | * Copyright: Wolfson Microelectronics. PLC. |
8 | */ |
9 | |
10 | #ifndef __LINUX_SND_SOC_DAPM_H |
11 | #define __LINUX_SND_SOC_DAPM_H |
12 | |
13 | #include <linux/types.h> |
14 | #include <sound/control.h> |
15 | #include <sound/soc-topology.h> |
16 | #include <sound/asoc.h> |
17 | |
18 | struct device; |
19 | struct snd_pcm_substream; |
20 | struct snd_soc_pcm_runtime; |
21 | struct soc_enum; |
22 | |
23 | /* widget has no PM register bit */ |
24 | #define SND_SOC_NOPM -1 |
25 | |
26 | /* |
27 | * SoC dynamic audio power management |
28 | * |
29 | * We can have up to 4 power domains |
30 | * 1. Codec domain - VREF, VMID |
31 | * Usually controlled at codec probe/remove, although can be set |
32 | * at stream time if power is not needed for sidetone, etc. |
33 | * 2. Platform/Machine domain - physically connected inputs and outputs |
34 | * Is platform/machine and user action specific, is set in the machine |
35 | * driver and by userspace e.g when HP are inserted |
36 | * 3. Path domain - Internal codec path mixers |
37 | * Are automatically set when mixer and mux settings are |
38 | * changed by the user. |
39 | * 4. Stream domain - DAC's and ADC's. |
40 | * Enabled when stream playback/capture is started. |
41 | */ |
42 | |
43 | /* codec domain */ |
44 | #define SND_SOC_DAPM_VMID(wname) \ |
45 | (struct snd_soc_dapm_widget) { \ |
46 | .id = snd_soc_dapm_vmid, .name = wname, .kcontrol_news = NULL, \ |
47 | .num_kcontrols = 0} |
48 | |
49 | /* platform domain */ |
50 | #define SND_SOC_DAPM_SIGGEN(wname) \ |
51 | (struct snd_soc_dapm_widget) { \ |
52 | .id = snd_soc_dapm_siggen, .name = wname, .kcontrol_news = NULL, \ |
53 | .num_kcontrols = 0, .reg = SND_SOC_NOPM } |
54 | #define SND_SOC_DAPM_SINK(wname) \ |
55 | (struct snd_soc_dapm_widget) { \ |
56 | .id = snd_soc_dapm_sink, .name = wname, .kcontrol_news = NULL, \ |
57 | .num_kcontrols = 0, .reg = SND_SOC_NOPM } |
58 | #define SND_SOC_DAPM_INPUT(wname) \ |
59 | (struct snd_soc_dapm_widget) { \ |
60 | .id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \ |
61 | .num_kcontrols = 0, .reg = SND_SOC_NOPM } |
62 | #define SND_SOC_DAPM_OUTPUT(wname) \ |
63 | (struct snd_soc_dapm_widget) { \ |
64 | .id = snd_soc_dapm_output, .name = wname, .kcontrol_news = NULL, \ |
65 | .num_kcontrols = 0, .reg = SND_SOC_NOPM } |
66 | #define SND_SOC_DAPM_MIC(wname, wevent) \ |
67 | (struct snd_soc_dapm_widget) { \ |
68 | .id = snd_soc_dapm_mic, .name = wname, .kcontrol_news = NULL, \ |
69 | .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \ |
70 | .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD} |
71 | #define SND_SOC_DAPM_HP(wname, wevent) \ |
72 | (struct snd_soc_dapm_widget) { \ |
73 | .id = snd_soc_dapm_hp, .name = wname, .kcontrol_news = NULL, \ |
74 | .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \ |
75 | .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} |
76 | #define SND_SOC_DAPM_SPK(wname, wevent) \ |
77 | (struct snd_soc_dapm_widget) { \ |
78 | .id = snd_soc_dapm_spk, .name = wname, .kcontrol_news = NULL, \ |
79 | .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \ |
80 | .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} |
81 | #define SND_SOC_DAPM_LINE(wname, wevent) \ |
82 | (struct snd_soc_dapm_widget) { \ |
83 | .id = snd_soc_dapm_line, .name = wname, .kcontrol_news = NULL, \ |
84 | .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \ |
85 | .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} |
86 | |
87 | #define SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert) \ |
88 | .reg = wreg, .mask = 1, .shift = wshift, \ |
89 | .on_val = winvert ? 0 : 1, .off_val = winvert ? 1 : 0 |
90 | |
91 | /* path domain */ |
92 | #define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\ |
93 | wcontrols, wncontrols) \ |
94 | (struct snd_soc_dapm_widget) { \ |
95 | .id = snd_soc_dapm_pga, .name = wname, \ |
96 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
97 | .kcontrol_news = wcontrols, .num_kcontrols = wncontrols} |
98 | #define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\ |
99 | wcontrols, wncontrols) \ |
100 | (struct snd_soc_dapm_widget) { \ |
101 | .id = snd_soc_dapm_out_drv, .name = wname, \ |
102 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
103 | .kcontrol_news = wcontrols, .num_kcontrols = wncontrols} |
104 | #define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \ |
105 | wcontrols, wncontrols)\ |
106 | (struct snd_soc_dapm_widget) { \ |
107 | .id = snd_soc_dapm_mixer, .name = wname, \ |
108 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
109 | .kcontrol_news = wcontrols, .num_kcontrols = wncontrols} |
110 | #define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \ |
111 | wcontrols, wncontrols)\ |
112 | (struct snd_soc_dapm_widget) { \ |
113 | .id = snd_soc_dapm_mixer_named_ctl, .name = wname, \ |
114 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
115 | .kcontrol_news = wcontrols, .num_kcontrols = wncontrols} |
116 | /* DEPRECATED: use SND_SOC_DAPM_SUPPLY */ |
117 | #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \ |
118 | (struct snd_soc_dapm_widget) { \ |
119 | .id = snd_soc_dapm_micbias, .name = wname, \ |
120 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
121 | .kcontrol_news = NULL, .num_kcontrols = 0} |
122 | #define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \ |
123 | (struct snd_soc_dapm_widget) { \ |
124 | .id = snd_soc_dapm_switch, .name = wname, \ |
125 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
126 | .kcontrol_news = wcontrols, .num_kcontrols = 1} |
127 | #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \ |
128 | (struct snd_soc_dapm_widget) { \ |
129 | .id = snd_soc_dapm_mux, .name = wname, \ |
130 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
131 | .kcontrol_news = wcontrols, .num_kcontrols = 1} |
132 | #define SND_SOC_DAPM_DEMUX(wname, wreg, wshift, winvert, wcontrols) \ |
133 | (struct snd_soc_dapm_widget) { \ |
134 | .id = snd_soc_dapm_demux, .name = wname, \ |
135 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
136 | .kcontrol_news = wcontrols, .num_kcontrols = 1} |
137 | |
138 | /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */ |
139 | #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\ |
140 | wcontrols) \ |
141 | (struct snd_soc_dapm_widget) { \ |
142 | .id = snd_soc_dapm_pga, .name = wname, \ |
143 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
144 | .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)} |
145 | #define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \ |
146 | wcontrols)\ |
147 | (struct snd_soc_dapm_widget) { \ |
148 | .id = snd_soc_dapm_mixer, .name = wname, \ |
149 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
150 | .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)} |
151 | #define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \ |
152 | wcontrols)\ |
153 | (struct snd_soc_dapm_widget) { \ |
154 | .id = snd_soc_dapm_mixer_named_ctl, .name = wname, \ |
155 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
156 | .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)} |
157 | |
158 | /* path domain with event - event handler must return 0 for success */ |
159 | #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \ |
160 | wncontrols, wevent, wflags) \ |
161 | (struct snd_soc_dapm_widget) { \ |
162 | .id = snd_soc_dapm_pga, .name = wname, \ |
163 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
164 | .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \ |
165 | .event = wevent, .event_flags = wflags} |
166 | #define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \ |
167 | wncontrols, wevent, wflags) \ |
168 | (struct snd_soc_dapm_widget) { \ |
169 | .id = snd_soc_dapm_out_drv, .name = wname, \ |
170 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
171 | .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \ |
172 | .event = wevent, .event_flags = wflags} |
173 | #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \ |
174 | wncontrols, wevent, wflags) \ |
175 | (struct snd_soc_dapm_widget) { \ |
176 | .id = snd_soc_dapm_mixer, .name = wname, \ |
177 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
178 | .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \ |
179 | .event = wevent, .event_flags = wflags} |
180 | #define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \ |
181 | wcontrols, wncontrols, wevent, wflags) \ |
182 | (struct snd_soc_dapm_widget) { \ |
183 | .id = snd_soc_dapm_mixer, .name = wname, \ |
184 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
185 | .kcontrol_news = wcontrols, \ |
186 | .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags} |
187 | #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \ |
188 | wevent, wflags) \ |
189 | (struct snd_soc_dapm_widget) { \ |
190 | .id = snd_soc_dapm_switch, .name = wname, \ |
191 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
192 | .kcontrol_news = wcontrols, .num_kcontrols = 1, \ |
193 | .event = wevent, .event_flags = wflags} |
194 | #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \ |
195 | wevent, wflags) \ |
196 | (struct snd_soc_dapm_widget) { \ |
197 | .id = snd_soc_dapm_mux, .name = wname, \ |
198 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
199 | .kcontrol_news = wcontrols, .num_kcontrols = 1, \ |
200 | .event = wevent, .event_flags = wflags} |
201 | |
202 | /* additional sequencing control within an event type */ |
203 | #define SND_SOC_DAPM_PGA_S(wname, wsubseq, wreg, wshift, winvert, \ |
204 | wevent, wflags) \ |
205 | (struct snd_soc_dapm_widget) { \ |
206 | .id = snd_soc_dapm_pga, .name = wname, \ |
207 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
208 | .event = wevent, .event_flags = wflags, \ |
209 | .subseq = wsubseq} |
210 | #define SND_SOC_DAPM_SUPPLY_S(wname, wsubseq, wreg, wshift, winvert, wevent, \ |
211 | wflags) \ |
212 | (struct snd_soc_dapm_widget) { \ |
213 | .id = snd_soc_dapm_supply, .name = wname, \ |
214 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
215 | .event = wevent, .event_flags = wflags, .subseq = wsubseq} |
216 | |
217 | /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */ |
218 | #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \ |
219 | wevent, wflags) \ |
220 | (struct snd_soc_dapm_widget) { \ |
221 | .id = snd_soc_dapm_pga, .name = wname, \ |
222 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
223 | .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \ |
224 | .event = wevent, .event_flags = wflags} |
225 | #define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \ |
226 | wevent, wflags) \ |
227 | (struct snd_soc_dapm_widget) { \ |
228 | .id = snd_soc_dapm_mixer, .name = wname, \ |
229 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
230 | .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \ |
231 | .event = wevent, .event_flags = wflags} |
232 | #define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \ |
233 | wcontrols, wevent, wflags) \ |
234 | (struct snd_soc_dapm_widget) { \ |
235 | .id = snd_soc_dapm_mixer, .name = wname, \ |
236 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
237 | .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \ |
238 | .event = wevent, .event_flags = wflags} |
239 | |
240 | /* events that are pre and post DAPM */ |
241 | #define SND_SOC_DAPM_PRE(wname, wevent) \ |
242 | (struct snd_soc_dapm_widget) { \ |
243 | .id = snd_soc_dapm_pre, .name = wname, .kcontrol_news = NULL, \ |
244 | .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \ |
245 | .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD} |
246 | #define SND_SOC_DAPM_POST(wname, wevent) \ |
247 | (struct snd_soc_dapm_widget) { \ |
248 | .id = snd_soc_dapm_post, .name = wname, .kcontrol_news = NULL, \ |
249 | .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \ |
250 | .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD} |
251 | |
252 | /* stream domain */ |
253 | #define SND_SOC_DAPM_AIF_IN(wname, stname, wchan, wreg, wshift, winvert) \ |
254 | (struct snd_soc_dapm_widget) { \ |
255 | .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \ |
256 | .channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), } |
257 | #define SND_SOC_DAPM_AIF_IN_E(wname, stname, wchan, wreg, wshift, winvert, \ |
258 | wevent, wflags) \ |
259 | (struct snd_soc_dapm_widget) { \ |
260 | .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \ |
261 | .channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
262 | .event = wevent, .event_flags = wflags } |
263 | #define SND_SOC_DAPM_AIF_OUT(wname, stname, wchan, wreg, wshift, winvert) \ |
264 | (struct snd_soc_dapm_widget) { \ |
265 | .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \ |
266 | .channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), } |
267 | #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wchan, wreg, wshift, winvert, \ |
268 | wevent, wflags) \ |
269 | (struct snd_soc_dapm_widget) { \ |
270 | .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \ |
271 | .channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
272 | .event = wevent, .event_flags = wflags } |
273 | #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \ |
274 | (struct snd_soc_dapm_widget) { \ |
275 | .id = snd_soc_dapm_dac, .name = wname, .sname = stname, \ |
276 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert) } |
277 | #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \ |
278 | wevent, wflags) \ |
279 | (struct snd_soc_dapm_widget) { \ |
280 | .id = snd_soc_dapm_dac, .name = wname, .sname = stname, \ |
281 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
282 | .event = wevent, .event_flags = wflags} |
283 | |
284 | #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \ |
285 | (struct snd_soc_dapm_widget) { \ |
286 | .id = snd_soc_dapm_adc, .name = wname, .sname = stname, \ |
287 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), } |
288 | #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \ |
289 | wevent, wflags) \ |
290 | (struct snd_soc_dapm_widget) { \ |
291 | .id = snd_soc_dapm_adc, .name = wname, .sname = stname, \ |
292 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
293 | .event = wevent, .event_flags = wflags} |
294 | #define SND_SOC_DAPM_CLOCK_SUPPLY(wname) \ |
295 | (struct snd_soc_dapm_widget) { \ |
296 | .id = snd_soc_dapm_clock_supply, .name = wname, \ |
297 | .reg = SND_SOC_NOPM, .event = dapm_clock_event, \ |
298 | .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD } |
299 | |
300 | /* generic widgets */ |
301 | #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \ |
302 | (struct snd_soc_dapm_widget) { \ |
303 | .id = wid, .name = wname, .kcontrol_news = NULL, .num_kcontrols = 0, \ |
304 | .reg = wreg, .shift = wshift, .mask = wmask, \ |
305 | .on_val = won_val, .off_val = woff_val, } |
306 | #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \ |
307 | (struct snd_soc_dapm_widget) { \ |
308 | .id = snd_soc_dapm_supply, .name = wname, \ |
309 | SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ |
310 | .event = wevent, .event_flags = wflags} |
311 | #define SND_SOC_DAPM_REGULATOR_SUPPLY(wname, wdelay, wflags) \ |
312 | (struct snd_soc_dapm_widget) { \ |
313 | .id = snd_soc_dapm_regulator_supply, .name = wname, \ |
314 | .reg = SND_SOC_NOPM, .shift = wdelay, .event = dapm_regulator_event, \ |
315 | .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD, \ |
316 | .on_val = wflags} |
317 | #define SND_SOC_DAPM_PINCTRL(wname, active, sleep) \ |
318 | (struct snd_soc_dapm_widget) { \ |
319 | .id = snd_soc_dapm_pinctrl, .name = wname, \ |
320 | .priv = (&(struct snd_soc_dapm_pinctrl_priv) \ |
321 | { .active_state = active, .sleep_state = sleep,}), \ |
322 | .reg = SND_SOC_NOPM, .event = dapm_pinctrl_event, \ |
323 | .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD } |
324 | |
325 | |
326 | |
327 | /* dapm kcontrol types */ |
328 | #define SOC_DAPM_DOUBLE(xname, reg, lshift, rshift, max, invert) \ |
329 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
330 | .info = snd_soc_info_volsw, \ |
331 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ |
332 | .private_value = SOC_DOUBLE_VALUE(reg, lshift, rshift, max, invert, 0) } |
333 | #define SOC_DAPM_DOUBLE_R(xname, lreg, rreg, shift, max, invert) \ |
334 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
335 | .info = snd_soc_info_volsw, \ |
336 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ |
337 | .private_value = SOC_DOUBLE_R_VALUE(lreg, rreg, shift, max, invert) } |
338 | #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \ |
339 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
340 | .info = snd_soc_info_volsw, \ |
341 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ |
342 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) } |
343 | #define SOC_DAPM_SINGLE_AUTODISABLE(xname, reg, shift, max, invert) \ |
344 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
345 | .info = snd_soc_info_volsw, \ |
346 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ |
347 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) } |
348 | #define SOC_DAPM_SINGLE_VIRT(xname, max) \ |
349 | SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0) |
350 | #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ |
351 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
352 | .info = snd_soc_info_volsw, \ |
353 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ |
354 | .tlv.p = (tlv_array), \ |
355 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ |
356 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) } |
357 | #define SOC_DAPM_SINGLE_TLV_AUTODISABLE(xname, reg, shift, max, invert, tlv_array) \ |
358 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
359 | .info = snd_soc_info_volsw, \ |
360 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ |
361 | .tlv.p = (tlv_array), \ |
362 | .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ |
363 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) } |
364 | #define SOC_DAPM_SINGLE_TLV_VIRT(xname, max, tlv_array) \ |
365 | SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0, tlv_array) |
366 | #define SOC_DAPM_ENUM(xname, xenum) \ |
367 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
368 | .info = snd_soc_info_enum_double, \ |
369 | .get = snd_soc_dapm_get_enum_double, \ |
370 | .put = snd_soc_dapm_put_enum_double, \ |
371 | .private_value = (unsigned long)&xenum } |
372 | #define SOC_DAPM_ENUM_EXT(xname, xenum, xget, xput) \ |
373 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
374 | .info = snd_soc_info_enum_double, \ |
375 | .get = xget, \ |
376 | .put = xput, \ |
377 | .private_value = (unsigned long)&xenum } |
378 | #define SOC_DAPM_PIN_SWITCH(xname) \ |
379 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \ |
380 | .info = snd_soc_dapm_info_pin_switch, \ |
381 | .get = snd_soc_dapm_get_pin_switch, \ |
382 | .put = snd_soc_dapm_put_pin_switch, \ |
383 | .private_value = (unsigned long)xname } |
384 | |
385 | /* dapm stream operations */ |
386 | #define SND_SOC_DAPM_STREAM_NOP 0x0 |
387 | #define SND_SOC_DAPM_STREAM_START 0x1 |
388 | #define SND_SOC_DAPM_STREAM_STOP 0x2 |
389 | #define SND_SOC_DAPM_STREAM_SUSPEND 0x4 |
390 | #define SND_SOC_DAPM_STREAM_RESUME 0x8 |
391 | #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10 |
392 | #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20 |
393 | |
394 | /* dapm event types */ |
395 | #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */ |
396 | #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */ |
397 | #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */ |
398 | #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */ |
399 | #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */ |
400 | #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */ |
401 | #define SND_SOC_DAPM_WILL_PMU 0x40 /* called at start of sequence */ |
402 | #define SND_SOC_DAPM_WILL_PMD 0x80 /* called at start of sequence */ |
403 | #define SND_SOC_DAPM_PRE_POST_PMD (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD) |
404 | #define SND_SOC_DAPM_PRE_POST_PMU (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU) |
405 | |
406 | /* convenience event type detection */ |
407 | #define SND_SOC_DAPM_EVENT_ON(e) (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)) |
408 | #define SND_SOC_DAPM_EVENT_OFF(e) (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)) |
409 | |
410 | /* regulator widget flags */ |
411 | #define SND_SOC_DAPM_REGULATOR_BYPASS 0x1 /* bypass when disabled */ |
412 | |
413 | struct snd_soc_dapm_widget; |
414 | enum snd_soc_dapm_type; |
415 | struct snd_soc_dapm_path; |
416 | struct snd_soc_dapm_pin; |
417 | struct snd_soc_dapm_route; |
418 | struct snd_soc_dapm_context; |
419 | struct regulator; |
420 | struct snd_soc_dapm_widget_list; |
421 | struct snd_soc_dapm_update; |
422 | enum snd_soc_dapm_direction; |
423 | |
424 | /* |
425 | * Bias levels |
426 | * |
427 | * @ON: Bias is fully on for audio playback and capture operations. |
428 | * @PREPARE: Prepare for audio operations. Called before DAPM switching for |
429 | * stream start and stop operations. |
430 | * @STANDBY: Low power standby state when no playback/capture operations are |
431 | * in progress. NOTE: The transition time between STANDBY and ON |
432 | * should be as fast as possible and no longer than 10ms. |
433 | * @OFF: Power Off. No restrictions on transition times. |
434 | */ |
435 | enum snd_soc_bias_level { |
436 | SND_SOC_BIAS_OFF = 0, |
437 | SND_SOC_BIAS_STANDBY = 1, |
438 | SND_SOC_BIAS_PREPARE = 2, |
439 | SND_SOC_BIAS_ON = 3, |
440 | }; |
441 | |
442 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); |
443 | int dapm_clock_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); |
444 | int dapm_pinctrl_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); |
445 | |
446 | /* dapm controls */ |
447 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); |
448 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); |
449 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, |
450 | struct snd_ctl_elem_value *ucontrol); |
451 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
452 | struct snd_ctl_elem_value *ucontrol); |
453 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, |
454 | struct snd_ctl_elem_info *uinfo); |
455 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, |
456 | struct snd_ctl_elem_value *uncontrol); |
457 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, |
458 | struct snd_ctl_elem_value *uncontrol); |
459 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
460 | const struct snd_soc_dapm_widget *widget, int num); |
461 | struct snd_soc_dapm_widget *snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
462 | const struct snd_soc_dapm_widget *widget); |
463 | struct snd_soc_dapm_widget *snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, |
464 | const struct snd_soc_dapm_widget *widget); |
465 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, struct snd_soc_dai *dai); |
466 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w); |
467 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card); |
468 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card); |
469 | |
470 | int snd_soc_dapm_update_dai(struct snd_pcm_substream *substream, |
471 | struct snd_pcm_hw_params *params, struct snd_soc_dai *dai); |
472 | int snd_soc_dapm_widget_name_cmp(struct snd_soc_dapm_widget *widget, const char *s); |
473 | |
474 | /* dapm path setup */ |
475 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card); |
476 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm); |
477 | void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm, |
478 | struct snd_soc_card *card, struct snd_soc_component *component); |
479 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
480 | const struct snd_soc_dapm_route *route, int num); |
481 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, |
482 | const struct snd_soc_dapm_route *route, int num); |
483 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, |
484 | const struct snd_soc_dapm_route *route, int num); |
485 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w); |
486 | |
487 | /* dapm events */ |
488 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, int event); |
489 | void snd_soc_dapm_stream_stop(struct snd_soc_pcm_runtime *rtd, int stream); |
490 | void snd_soc_dapm_shutdown(struct snd_soc_card *card); |
491 | |
492 | /* external DAPM widget events */ |
493 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
494 | struct snd_kcontrol *kcontrol, int connect, struct snd_soc_dapm_update *update); |
495 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
496 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
497 | struct snd_soc_dapm_update *update); |
498 | |
499 | /* dapm sys fs - used by the core */ |
500 | extern struct attribute *soc_dapm_dev_attrs[]; |
501 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, struct dentry *parent); |
502 | |
503 | /* dapm audio pin control and status */ |
504 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin); |
505 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin); |
506 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, const char *pin); |
507 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin); |
508 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin); |
509 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin); |
510 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, const char *pin); |
511 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm); |
512 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm); |
513 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin); |
514 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin); |
515 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, const char *pin); |
516 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol); |
517 | |
518 | /* Mostly internal - should not normally be used */ |
519 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card); |
520 | |
521 | /* dapm path query */ |
522 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, |
523 | struct snd_soc_dapm_widget_list **list, |
524 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, enum snd_soc_dapm_direction)); |
525 | void snd_soc_dapm_dai_free_widgets(struct snd_soc_dapm_widget_list **list); |
526 | |
527 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm(struct snd_kcontrol *kcontrol); |
528 | struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget(struct snd_kcontrol *kcontrol); |
529 | |
530 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level); |
531 | |
532 | /* dapm widget types */ |
533 | enum snd_soc_dapm_type { |
534 | snd_soc_dapm_input = 0, /* input pin */ |
535 | snd_soc_dapm_output, /* output pin */ |
536 | snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */ |
537 | snd_soc_dapm_demux, /* connects the input to one of multiple outputs */ |
538 | snd_soc_dapm_mixer, /* mixes several analog signals together */ |
539 | snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */ |
540 | snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */ |
541 | snd_soc_dapm_out_drv, /* output driver */ |
542 | snd_soc_dapm_adc, /* analog to digital converter */ |
543 | snd_soc_dapm_dac, /* digital to analog converter */ |
544 | snd_soc_dapm_micbias, /* microphone bias (power) - DEPRECATED: use snd_soc_dapm_supply */ |
545 | snd_soc_dapm_mic, /* microphone */ |
546 | snd_soc_dapm_hp, /* headphones */ |
547 | snd_soc_dapm_spk, /* speaker */ |
548 | snd_soc_dapm_line, /* line input/output */ |
549 | snd_soc_dapm_switch, /* analog switch */ |
550 | snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */ |
551 | snd_soc_dapm_pre, /* machine specific pre widget - exec first */ |
552 | snd_soc_dapm_post, /* machine specific post widget - exec last */ |
553 | snd_soc_dapm_supply, /* power/clock supply */ |
554 | snd_soc_dapm_pinctrl, /* pinctrl */ |
555 | snd_soc_dapm_regulator_supply, /* external regulator */ |
556 | snd_soc_dapm_clock_supply, /* external clock */ |
557 | snd_soc_dapm_aif_in, /* audio interface input */ |
558 | snd_soc_dapm_aif_out, /* audio interface output */ |
559 | snd_soc_dapm_siggen, /* signal generator */ |
560 | snd_soc_dapm_sink, |
561 | snd_soc_dapm_dai_in, /* link to DAI structure */ |
562 | snd_soc_dapm_dai_out, |
563 | snd_soc_dapm_dai_link, /* link between two DAI structures */ |
564 | snd_soc_dapm_kcontrol, /* Auto-disabled kcontrol */ |
565 | snd_soc_dapm_buffer, /* DSP/CODEC internal buffer */ |
566 | snd_soc_dapm_scheduler, /* DSP/CODEC internal scheduler */ |
567 | snd_soc_dapm_effect, /* DSP/CODEC effect component */ |
568 | snd_soc_dapm_src, /* DSP/CODEC SRC component */ |
569 | snd_soc_dapm_asrc, /* DSP/CODEC ASRC component */ |
570 | snd_soc_dapm_encoder, /* FW/SW audio encoder component */ |
571 | snd_soc_dapm_decoder, /* FW/SW audio decoder component */ |
572 | |
573 | /* Don't edit below this line */ |
574 | SND_SOC_DAPM_TYPE_COUNT |
575 | }; |
576 | |
577 | /* |
578 | * DAPM audio route definition. |
579 | * |
580 | * Defines an audio route originating at source via control and finishing |
581 | * at sink. |
582 | */ |
583 | struct snd_soc_dapm_route { |
584 | const char *sink; |
585 | const char *control; |
586 | const char *source; |
587 | |
588 | /* Note: currently only supported for links where source is a supply */ |
589 | int (*connected)(struct snd_soc_dapm_widget *source, |
590 | struct snd_soc_dapm_widget *sink); |
591 | |
592 | struct snd_soc_dobj dobj; |
593 | }; |
594 | |
595 | /* dapm audio path between two widgets */ |
596 | struct snd_soc_dapm_path { |
597 | const char *name; |
598 | |
599 | /* |
600 | * source (input) and sink (output) widgets |
601 | * The union is for convience, since it is a lot nicer to type |
602 | * p->source, rather than p->node[SND_SOC_DAPM_DIR_IN] |
603 | */ |
604 | union { |
605 | struct { |
606 | struct snd_soc_dapm_widget *source; |
607 | struct snd_soc_dapm_widget *sink; |
608 | }; |
609 | struct snd_soc_dapm_widget *node[2]; |
610 | }; |
611 | |
612 | /* status */ |
613 | u32 connect:1; /* source and sink widgets are connected */ |
614 | u32 walking:1; /* path is in the process of being walked */ |
615 | u32 weak:1; /* path ignored for power management */ |
616 | u32 is_supply:1; /* At least one of the connected widgets is a supply */ |
617 | |
618 | int (*connected)(struct snd_soc_dapm_widget *source, |
619 | struct snd_soc_dapm_widget *sink); |
620 | |
621 | struct list_head list_node[2]; |
622 | struct list_head list_kcontrol; |
623 | struct list_head list; |
624 | }; |
625 | |
626 | /* dapm widget */ |
627 | struct snd_soc_dapm_widget { |
628 | enum snd_soc_dapm_type id; |
629 | const char *name; /* widget name */ |
630 | const char *sname; /* stream name */ |
631 | struct list_head list; |
632 | struct snd_soc_dapm_context *dapm; |
633 | |
634 | void *priv; /* widget specific data */ |
635 | struct regulator *regulator; /* attached regulator */ |
636 | struct pinctrl *pinctrl; /* attached pinctrl */ |
637 | |
638 | /* dapm control */ |
639 | int reg; /* negative reg = no direct dapm */ |
640 | unsigned char shift; /* bits to shift */ |
641 | unsigned int mask; /* non-shifted mask */ |
642 | unsigned int on_val; /* on state value */ |
643 | unsigned int off_val; /* off state value */ |
644 | unsigned char power:1; /* block power status */ |
645 | unsigned char active:1; /* active stream on DAC, ADC's */ |
646 | unsigned char connected:1; /* connected codec pin */ |
647 | unsigned char new:1; /* cnew complete */ |
648 | unsigned char force:1; /* force state */ |
649 | unsigned char ignore_suspend:1; /* kept enabled over suspend */ |
650 | unsigned char new_power:1; /* power from this run */ |
651 | unsigned char power_checked:1; /* power checked this run */ |
652 | unsigned char is_supply:1; /* Widget is a supply type widget */ |
653 | unsigned char is_ep:2; /* Widget is a endpoint type widget */ |
654 | unsigned char no_wname_in_kcontrol_name:1; /* No widget name prefix in kcontrol name */ |
655 | int subseq; /* sort within widget type */ |
656 | |
657 | int (*power_check)(struct snd_soc_dapm_widget *w); |
658 | |
659 | /* external events */ |
660 | unsigned short event_flags; /* flags to specify event types */ |
661 | int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int); |
662 | |
663 | /* kcontrols that relate to this widget */ |
664 | int num_kcontrols; |
665 | const struct snd_kcontrol_new *kcontrol_news; |
666 | struct snd_kcontrol **kcontrols; |
667 | struct snd_soc_dobj dobj; |
668 | |
669 | /* widget input and output edges */ |
670 | struct list_head edges[2]; |
671 | |
672 | /* used during DAPM updates */ |
673 | struct list_head work_list; |
674 | struct list_head power_list; |
675 | struct list_head dirty; |
676 | int endpoints[2]; |
677 | |
678 | struct clk *clk; |
679 | |
680 | int channel; |
681 | }; |
682 | |
683 | struct snd_soc_dapm_update { |
684 | struct snd_kcontrol *kcontrol; |
685 | int reg; |
686 | int mask; |
687 | int val; |
688 | int reg2; |
689 | int mask2; |
690 | int val2; |
691 | bool has_second_set; |
692 | }; |
693 | |
694 | /* DAPM context */ |
695 | struct snd_soc_dapm_context { |
696 | enum snd_soc_bias_level bias_level; |
697 | |
698 | /* bit field */ |
699 | unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */ |
700 | unsigned int suspend_bias_off:1; /* Use BIAS_OFF in suspend if the DAPM is idle */ |
701 | |
702 | struct device *dev; /* from parent - for debug */ |
703 | struct snd_soc_component *component; /* parent component */ |
704 | struct snd_soc_card *card; /* parent card */ |
705 | |
706 | /* used during DAPM updates */ |
707 | enum snd_soc_bias_level target_bias_level; |
708 | struct list_head list; |
709 | |
710 | struct snd_soc_dapm_widget *wcache_sink; |
711 | struct snd_soc_dapm_widget *wcache_source; |
712 | |
713 | #ifdef CONFIG_DEBUG_FS |
714 | struct dentry *debugfs_dapm; |
715 | #endif |
716 | }; |
717 | |
718 | /* A list of widgets associated with an object, typically a snd_kcontrol */ |
719 | struct snd_soc_dapm_widget_list { |
720 | int num_widgets; |
721 | struct snd_soc_dapm_widget *widgets[] __counted_by(num_widgets); |
722 | }; |
723 | |
724 | #define for_each_dapm_widgets(list, i, widget) \ |
725 | for ((i) = 0; \ |
726 | (i) < list->num_widgets && (widget = list->widgets[i]); \ |
727 | (i)++) |
728 | |
729 | struct snd_soc_dapm_stats { |
730 | int power_checks; |
731 | int path_checks; |
732 | int neighbour_checks; |
733 | }; |
734 | |
735 | struct snd_soc_dapm_pinctrl_priv { |
736 | const char *active_state; |
737 | const char *sleep_state; |
738 | }; |
739 | |
740 | /** |
741 | * snd_soc_dapm_init_bias_level() - Initialize DAPM bias level |
742 | * @dapm: The DAPM context to initialize |
743 | * @level: The DAPM level to initialize to |
744 | * |
745 | * This function only sets the driver internal state of the DAPM level and will |
746 | * not modify the state of the device. Hence it should not be used during normal |
747 | * operation, but only to synchronize the internal state to the device state. |
748 | * E.g. during driver probe to set the DAPM level to the one corresponding with |
749 | * the power-on reset state of the device. |
750 | * |
751 | * To change the DAPM state of the device use snd_soc_dapm_set_bias_level(). |
752 | */ |
753 | static inline void snd_soc_dapm_init_bias_level( |
754 | struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) |
755 | { |
756 | dapm->bias_level = level; |
757 | } |
758 | |
759 | /** |
760 | * snd_soc_dapm_get_bias_level() - Get current DAPM bias level |
761 | * @dapm: The context for which to get the bias level |
762 | * |
763 | * Returns: The current bias level of the passed DAPM context. |
764 | */ |
765 | static inline enum snd_soc_bias_level snd_soc_dapm_get_bias_level( |
766 | struct snd_soc_dapm_context *dapm) |
767 | { |
768 | return dapm->bias_level; |
769 | } |
770 | |
771 | enum snd_soc_dapm_direction { |
772 | SND_SOC_DAPM_DIR_IN, |
773 | SND_SOC_DAPM_DIR_OUT |
774 | }; |
775 | |
776 | #define SND_SOC_DAPM_DIR_TO_EP(x) BIT(x) |
777 | |
778 | #define SND_SOC_DAPM_EP_SOURCE SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_IN) |
779 | #define SND_SOC_DAPM_EP_SINK SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_OUT) |
780 | |
781 | /** |
782 | * snd_soc_dapm_widget_for_each_path - Iterates over all paths in the |
783 | * specified direction of a widget |
784 | * @w: The widget |
785 | * @dir: Whether to iterate over the paths where the specified widget is the |
786 | * incoming or outgoing widgets |
787 | * @p: The path iterator variable |
788 | */ |
789 | #define snd_soc_dapm_widget_for_each_path(w, dir, p) \ |
790 | list_for_each_entry(p, &w->edges[dir], list_node[dir]) |
791 | |
792 | /** |
793 | * snd_soc_dapm_widget_for_each_path_safe - Iterates over all paths in the |
794 | * specified direction of a widget |
795 | * @w: The widget |
796 | * @dir: Whether to iterate over the paths where the specified widget is the |
797 | * incoming or outgoing widgets |
798 | * @p: The path iterator variable |
799 | * @next_p: Temporary storage for the next path |
800 | * |
801 | * This function works like snd_soc_dapm_widget_for_each_path, expect that |
802 | * it is safe to remove the current path from the list while iterating |
803 | */ |
804 | #define snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) \ |
805 | list_for_each_entry_safe(p, next_p, &w->edges[dir], list_node[dir]) |
806 | |
807 | /** |
808 | * snd_soc_dapm_widget_for_each_sink_path - Iterates over all paths leaving a |
809 | * widget |
810 | * @w: The widget |
811 | * @p: The path iterator variable |
812 | */ |
813 | #define snd_soc_dapm_widget_for_each_sink_path(w, p) \ |
814 | snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_IN, p) |
815 | |
816 | /** |
817 | * snd_soc_dapm_widget_for_each_source_path - Iterates over all paths leading to |
818 | * a widget |
819 | * @w: The widget |
820 | * @p: The path iterator variable |
821 | */ |
822 | #define snd_soc_dapm_widget_for_each_source_path(w, p) \ |
823 | snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_OUT, p) |
824 | |
825 | #endif |
826 | |