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