1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * wm8971.c -- WM8971 ALSA SoC Audio driver |
4 | * |
5 | * Copyright 2005 Lab126, Inc. |
6 | * |
7 | * Author: Kenneth Kiraly <kiraly@lab126.com> |
8 | * |
9 | * Based on wm8753.c by Liam Girdwood |
10 | */ |
11 | |
12 | #include <linux/module.h> |
13 | #include <linux/moduleparam.h> |
14 | #include <linux/init.h> |
15 | #include <linux/delay.h> |
16 | #include <linux/pm.h> |
17 | #include <linux/i2c.h> |
18 | #include <linux/regmap.h> |
19 | #include <linux/slab.h> |
20 | #include <sound/core.h> |
21 | #include <sound/pcm.h> |
22 | #include <sound/pcm_params.h> |
23 | #include <sound/soc.h> |
24 | #include <sound/initval.h> |
25 | |
26 | #include "wm8971.h" |
27 | |
28 | #define WM8971_REG_COUNT 43 |
29 | |
30 | /* codec private data */ |
31 | struct wm8971_priv { |
32 | unsigned int sysclk; |
33 | struct delayed_work charge_work; |
34 | struct regmap *regmap; |
35 | }; |
36 | |
37 | /* |
38 | * wm8971 register cache |
39 | * We can't read the WM8971 register space when we |
40 | * are using 2 wire for device control, so we cache them instead. |
41 | */ |
42 | static const struct reg_default wm8971_reg_defaults[] = { |
43 | { 0, 0x0097 }, |
44 | { 1, 0x0097 }, |
45 | { 2, 0x0079 }, |
46 | { 3, 0x0079 }, |
47 | { 4, 0x0000 }, |
48 | { 5, 0x0008 }, |
49 | { 6, 0x0000 }, |
50 | { 7, 0x000a }, |
51 | { 8, 0x0000 }, |
52 | { 9, 0x0000 }, |
53 | { 10, 0x00ff }, |
54 | { 11, 0x00ff }, |
55 | { 12, 0x000f }, |
56 | { 13, 0x000f }, |
57 | { 14, 0x0000 }, |
58 | { 15, 0x0000 }, |
59 | { 16, 0x0000 }, |
60 | { 17, 0x007b }, |
61 | { 18, 0x0000 }, |
62 | { 19, 0x0032 }, |
63 | { 20, 0x0000 }, |
64 | { 21, 0x00c3 }, |
65 | { 22, 0x00c3 }, |
66 | { 23, 0x00c0 }, |
67 | { 24, 0x0000 }, |
68 | { 25, 0x0000 }, |
69 | { 26, 0x0000 }, |
70 | { 27, 0x0000 }, |
71 | { 28, 0x0000 }, |
72 | { 29, 0x0000 }, |
73 | { 30, 0x0000 }, |
74 | { 31, 0x0000 }, |
75 | { 32, 0x0000 }, |
76 | { 33, 0x0000 }, |
77 | { 34, 0x0050 }, |
78 | { 35, 0x0050 }, |
79 | { 36, 0x0050 }, |
80 | { 37, 0x0050 }, |
81 | { 38, 0x0050 }, |
82 | { 39, 0x0050 }, |
83 | { 40, 0x0079 }, |
84 | { 41, 0x0079 }, |
85 | { 42, 0x0079 }, |
86 | }; |
87 | |
88 | #define wm8971_reset(c) snd_soc_component_write(c, WM8971_RESET, 0) |
89 | |
90 | /* WM8971 Controls */ |
91 | static const char *wm8971_bass[] = { "Linear Control" , "Adaptive Boost" }; |
92 | static const char *wm8971_bass_filter[] = { "130Hz @ 48kHz" , |
93 | "200Hz @ 48kHz" }; |
94 | static const char *wm8971_treble[] = { "8kHz" , "4kHz" }; |
95 | static const char *wm8971_alc_func[] = { "Off" , "Right" , "Left" , "Stereo" }; |
96 | static const char *wm8971_ng_type[] = { "Constant PGA Gain" , |
97 | "Mute ADC Output" }; |
98 | static const char *wm8971_deemp[] = { "None" , "32kHz" , "44.1kHz" , "48kHz" }; |
99 | static const char *wm8971_mono_mux[] = {"Stereo" , "Mono (Left)" , |
100 | "Mono (Right)" , "Digital Mono" }; |
101 | static const char *wm8971_dac_phase[] = { "Non Inverted" , "Inverted" }; |
102 | static const char *wm8971_lline_mux[] = {"Line" , "NC" , "NC" , "PGA" , |
103 | "Differential" }; |
104 | static const char *wm8971_rline_mux[] = {"Line" , "Mic" , "NC" , "PGA" , |
105 | "Differential" }; |
106 | static const char *wm8971_lpga_sel[] = {"Line" , "NC" , "NC" , "Differential" }; |
107 | static const char *wm8971_rpga_sel[] = {"Line" , "Mic" , "NC" , "Differential" }; |
108 | static const char *wm8971_adcpol[] = {"Normal" , "L Invert" , "R Invert" , |
109 | "L + R Invert" }; |
110 | |
111 | static const struct soc_enum wm8971_enum[] = { |
112 | SOC_ENUM_SINGLE(WM8971_BASS, 7, 2, wm8971_bass), /* 0 */ |
113 | SOC_ENUM_SINGLE(WM8971_BASS, 6, 2, wm8971_bass_filter), |
114 | SOC_ENUM_SINGLE(WM8971_TREBLE, 6, 2, wm8971_treble), |
115 | SOC_ENUM_SINGLE(WM8971_ALC1, 7, 4, wm8971_alc_func), |
116 | SOC_ENUM_SINGLE(WM8971_NGATE, 1, 2, wm8971_ng_type), /* 4 */ |
117 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 1, 4, wm8971_deemp), |
118 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 4, 4, wm8971_mono_mux), |
119 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 1, 2, wm8971_dac_phase), |
120 | SOC_ENUM_SINGLE(WM8971_LOUTM1, 0, 5, wm8971_lline_mux), /* 8 */ |
121 | SOC_ENUM_SINGLE(WM8971_ROUTM1, 0, 5, wm8971_rline_mux), |
122 | SOC_ENUM_SINGLE(WM8971_LADCIN, 6, 4, wm8971_lpga_sel), |
123 | SOC_ENUM_SINGLE(WM8971_RADCIN, 6, 4, wm8971_rpga_sel), |
124 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 5, 4, wm8971_adcpol), /* 12 */ |
125 | SOC_ENUM_SINGLE(WM8971_ADCIN, 6, 4, wm8971_mono_mux), |
126 | }; |
127 | |
128 | static const struct snd_kcontrol_new wm8971_snd_controls[] = { |
129 | SOC_DOUBLE_R("Capture Volume" , WM8971_LINVOL, WM8971_RINVOL, 0, 63, 0), |
130 | SOC_DOUBLE_R("Capture ZC Switch" , WM8971_LINVOL, WM8971_RINVOL, |
131 | 6, 1, 0), |
132 | SOC_DOUBLE_R("Capture Switch" , WM8971_LINVOL, WM8971_RINVOL, 7, 1, 1), |
133 | |
134 | SOC_DOUBLE_R("Headphone Playback ZC Switch" , WM8971_LOUT1V, |
135 | WM8971_ROUT1V, 7, 1, 0), |
136 | SOC_DOUBLE_R("Speaker Playback ZC Switch" , WM8971_LOUT2V, |
137 | WM8971_ROUT2V, 7, 1, 0), |
138 | SOC_SINGLE("Mono Playback ZC Switch" , WM8971_MOUTV, 7, 1, 0), |
139 | |
140 | SOC_DOUBLE_R("PCM Volume" , WM8971_LDAC, WM8971_RDAC, 0, 255, 0), |
141 | |
142 | SOC_DOUBLE_R("Bypass Left Playback Volume" , WM8971_LOUTM1, |
143 | WM8971_LOUTM2, 4, 7, 1), |
144 | SOC_DOUBLE_R("Bypass Right Playback Volume" , WM8971_ROUTM1, |
145 | WM8971_ROUTM2, 4, 7, 1), |
146 | SOC_DOUBLE_R("Bypass Mono Playback Volume" , WM8971_MOUTM1, |
147 | WM8971_MOUTM2, 4, 7, 1), |
148 | |
149 | SOC_DOUBLE_R("Headphone Playback Volume" , WM8971_LOUT1V, |
150 | WM8971_ROUT1V, 0, 127, 0), |
151 | SOC_DOUBLE_R("Speaker Playback Volume" , WM8971_LOUT2V, |
152 | WM8971_ROUT2V, 0, 127, 0), |
153 | |
154 | SOC_ENUM("Bass Boost" , wm8971_enum[0]), |
155 | SOC_ENUM("Bass Filter" , wm8971_enum[1]), |
156 | SOC_SINGLE("Bass Volume" , WM8971_BASS, 0, 7, 1), |
157 | |
158 | SOC_SINGLE("Treble Volume" , WM8971_TREBLE, 0, 7, 0), |
159 | SOC_ENUM("Treble Cut-off" , wm8971_enum[2]), |
160 | |
161 | SOC_SINGLE("Capture Filter Switch" , WM8971_ADCDAC, 0, 1, 1), |
162 | |
163 | SOC_SINGLE("ALC Target Volume" , WM8971_ALC1, 0, 7, 0), |
164 | SOC_SINGLE("ALC Max Volume" , WM8971_ALC1, 4, 7, 0), |
165 | |
166 | SOC_SINGLE("ALC Capture Target Volume" , WM8971_ALC1, 0, 7, 0), |
167 | SOC_SINGLE("ALC Capture Max Volume" , WM8971_ALC1, 4, 7, 0), |
168 | SOC_ENUM("ALC Capture Function" , wm8971_enum[3]), |
169 | SOC_SINGLE("ALC Capture ZC Switch" , WM8971_ALC2, 7, 1, 0), |
170 | SOC_SINGLE("ALC Capture Hold Time" , WM8971_ALC2, 0, 15, 0), |
171 | SOC_SINGLE("ALC Capture Decay Time" , WM8971_ALC3, 4, 15, 0), |
172 | SOC_SINGLE("ALC Capture Attack Time" , WM8971_ALC3, 0, 15, 0), |
173 | SOC_SINGLE("ALC Capture NG Threshold" , WM8971_NGATE, 3, 31, 0), |
174 | SOC_ENUM("ALC Capture NG Type" , wm8971_enum[4]), |
175 | SOC_SINGLE("ALC Capture NG Switch" , WM8971_NGATE, 0, 1, 0), |
176 | |
177 | SOC_SINGLE("Capture 6dB Attenuate" , WM8971_ADCDAC, 8, 1, 0), |
178 | SOC_SINGLE("Playback 6dB Attenuate" , WM8971_ADCDAC, 7, 1, 0), |
179 | |
180 | SOC_ENUM("Playback De-emphasis" , wm8971_enum[5]), |
181 | SOC_ENUM("Playback Function" , wm8971_enum[6]), |
182 | SOC_ENUM("Playback Phase" , wm8971_enum[7]), |
183 | |
184 | SOC_DOUBLE_R("Mic Boost" , WM8971_LADCIN, WM8971_RADCIN, 4, 3, 0), |
185 | }; |
186 | |
187 | /* |
188 | * DAPM Controls |
189 | */ |
190 | |
191 | /* Left Mixer */ |
192 | static const struct snd_kcontrol_new wm8971_left_mixer_controls[] = { |
193 | SOC_DAPM_SINGLE("Playback Switch" , WM8971_LOUTM1, 8, 1, 0), |
194 | SOC_DAPM_SINGLE("Left Bypass Switch" , WM8971_LOUTM1, 7, 1, 0), |
195 | SOC_DAPM_SINGLE("Right Playback Switch" , WM8971_LOUTM2, 8, 1, 0), |
196 | SOC_DAPM_SINGLE("Right Bypass Switch" , WM8971_LOUTM2, 7, 1, 0), |
197 | }; |
198 | |
199 | /* Right Mixer */ |
200 | static const struct snd_kcontrol_new wm8971_right_mixer_controls[] = { |
201 | SOC_DAPM_SINGLE("Left Playback Switch" , WM8971_ROUTM1, 8, 1, 0), |
202 | SOC_DAPM_SINGLE("Left Bypass Switch" , WM8971_ROUTM1, 7, 1, 0), |
203 | SOC_DAPM_SINGLE("Playback Switch" , WM8971_ROUTM2, 8, 1, 0), |
204 | SOC_DAPM_SINGLE("Right Bypass Switch" , WM8971_ROUTM2, 7, 1, 0), |
205 | }; |
206 | |
207 | /* Mono Mixer */ |
208 | static const struct snd_kcontrol_new wm8971_mono_mixer_controls[] = { |
209 | SOC_DAPM_SINGLE("Left Playback Switch" , WM8971_MOUTM1, 8, 1, 0), |
210 | SOC_DAPM_SINGLE("Left Bypass Switch" , WM8971_MOUTM1, 7, 1, 0), |
211 | SOC_DAPM_SINGLE("Right Playback Switch" , WM8971_MOUTM2, 8, 1, 0), |
212 | SOC_DAPM_SINGLE("Right Bypass Switch" , WM8971_MOUTM2, 7, 1, 0), |
213 | }; |
214 | |
215 | /* Left Line Mux */ |
216 | static const struct snd_kcontrol_new wm8971_left_line_controls = |
217 | SOC_DAPM_ENUM("Route" , wm8971_enum[8]); |
218 | |
219 | /* Right Line Mux */ |
220 | static const struct snd_kcontrol_new wm8971_right_line_controls = |
221 | SOC_DAPM_ENUM("Route" , wm8971_enum[9]); |
222 | |
223 | /* Left PGA Mux */ |
224 | static const struct snd_kcontrol_new wm8971_left_pga_controls = |
225 | SOC_DAPM_ENUM("Route" , wm8971_enum[10]); |
226 | |
227 | /* Right PGA Mux */ |
228 | static const struct snd_kcontrol_new wm8971_right_pga_controls = |
229 | SOC_DAPM_ENUM("Route" , wm8971_enum[11]); |
230 | |
231 | /* Mono ADC Mux */ |
232 | static const struct snd_kcontrol_new wm8971_monomux_controls = |
233 | SOC_DAPM_ENUM("Route" , wm8971_enum[13]); |
234 | |
235 | static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = { |
236 | SND_SOC_DAPM_MIXER("Left Mixer" , SND_SOC_NOPM, 0, 0, |
237 | &wm8971_left_mixer_controls[0], |
238 | ARRAY_SIZE(wm8971_left_mixer_controls)), |
239 | SND_SOC_DAPM_MIXER("Right Mixer" , SND_SOC_NOPM, 0, 0, |
240 | &wm8971_right_mixer_controls[0], |
241 | ARRAY_SIZE(wm8971_right_mixer_controls)), |
242 | SND_SOC_DAPM_MIXER("Mono Mixer" , WM8971_PWR2, 2, 0, |
243 | &wm8971_mono_mixer_controls[0], |
244 | ARRAY_SIZE(wm8971_mono_mixer_controls)), |
245 | |
246 | SND_SOC_DAPM_PGA("Right Out 2" , WM8971_PWR2, 3, 0, NULL, 0), |
247 | SND_SOC_DAPM_PGA("Left Out 2" , WM8971_PWR2, 4, 0, NULL, 0), |
248 | SND_SOC_DAPM_PGA("Right Out 1" , WM8971_PWR2, 5, 0, NULL, 0), |
249 | SND_SOC_DAPM_PGA("Left Out 1" , WM8971_PWR2, 6, 0, NULL, 0), |
250 | SND_SOC_DAPM_DAC("Right DAC" , "Right Playback" , WM8971_PWR2, 7, 0), |
251 | SND_SOC_DAPM_DAC("Left DAC" , "Left Playback" , WM8971_PWR2, 8, 0), |
252 | SND_SOC_DAPM_PGA("Mono Out 1" , WM8971_PWR2, 2, 0, NULL, 0), |
253 | |
254 | SND_SOC_DAPM_SUPPLY("Mic Bias" , WM8971_PWR1, 1, 0, NULL, 0), |
255 | SND_SOC_DAPM_ADC("Right ADC" , "Right Capture" , WM8971_PWR1, 2, 0), |
256 | SND_SOC_DAPM_ADC("Left ADC" , "Left Capture" , WM8971_PWR1, 3, 0), |
257 | |
258 | SND_SOC_DAPM_MUX("Left PGA Mux" , WM8971_PWR1, 5, 0, |
259 | &wm8971_left_pga_controls), |
260 | SND_SOC_DAPM_MUX("Right PGA Mux" , WM8971_PWR1, 4, 0, |
261 | &wm8971_right_pga_controls), |
262 | SND_SOC_DAPM_MUX("Left Line Mux" , SND_SOC_NOPM, 0, 0, |
263 | &wm8971_left_line_controls), |
264 | SND_SOC_DAPM_MUX("Right Line Mux" , SND_SOC_NOPM, 0, 0, |
265 | &wm8971_right_line_controls), |
266 | |
267 | SND_SOC_DAPM_MUX("Left ADC Mux" , SND_SOC_NOPM, 0, 0, |
268 | &wm8971_monomux_controls), |
269 | SND_SOC_DAPM_MUX("Right ADC Mux" , SND_SOC_NOPM, 0, 0, |
270 | &wm8971_monomux_controls), |
271 | |
272 | SND_SOC_DAPM_OUTPUT("LOUT1" ), |
273 | SND_SOC_DAPM_OUTPUT("ROUT1" ), |
274 | SND_SOC_DAPM_OUTPUT("LOUT2" ), |
275 | SND_SOC_DAPM_OUTPUT("ROUT2" ), |
276 | SND_SOC_DAPM_OUTPUT("MONO" ), |
277 | |
278 | SND_SOC_DAPM_INPUT("LINPUT1" ), |
279 | SND_SOC_DAPM_INPUT("RINPUT1" ), |
280 | SND_SOC_DAPM_INPUT("MIC" ), |
281 | }; |
282 | |
283 | static const struct snd_soc_dapm_route wm8971_dapm_routes[] = { |
284 | /* left mixer */ |
285 | {"Left Mixer" , "Playback Switch" , "Left DAC" }, |
286 | {"Left Mixer" , "Left Bypass Switch" , "Left Line Mux" }, |
287 | {"Left Mixer" , "Right Playback Switch" , "Right DAC" }, |
288 | {"Left Mixer" , "Right Bypass Switch" , "Right Line Mux" }, |
289 | |
290 | /* right mixer */ |
291 | {"Right Mixer" , "Left Playback Switch" , "Left DAC" }, |
292 | {"Right Mixer" , "Left Bypass Switch" , "Left Line Mux" }, |
293 | {"Right Mixer" , "Playback Switch" , "Right DAC" }, |
294 | {"Right Mixer" , "Right Bypass Switch" , "Right Line Mux" }, |
295 | |
296 | /* left out 1 */ |
297 | {"Left Out 1" , NULL, "Left Mixer" }, |
298 | {"LOUT1" , NULL, "Left Out 1" }, |
299 | |
300 | /* left out 2 */ |
301 | {"Left Out 2" , NULL, "Left Mixer" }, |
302 | {"LOUT2" , NULL, "Left Out 2" }, |
303 | |
304 | /* right out 1 */ |
305 | {"Right Out 1" , NULL, "Right Mixer" }, |
306 | {"ROUT1" , NULL, "Right Out 1" }, |
307 | |
308 | /* right out 2 */ |
309 | {"Right Out 2" , NULL, "Right Mixer" }, |
310 | {"ROUT2" , NULL, "Right Out 2" }, |
311 | |
312 | /* mono mixer */ |
313 | {"Mono Mixer" , "Left Playback Switch" , "Left DAC" }, |
314 | {"Mono Mixer" , "Left Bypass Switch" , "Left Line Mux" }, |
315 | {"Mono Mixer" , "Right Playback Switch" , "Right DAC" }, |
316 | {"Mono Mixer" , "Right Bypass Switch" , "Right Line Mux" }, |
317 | |
318 | /* mono out */ |
319 | {"Mono Out" , NULL, "Mono Mixer" }, |
320 | {"MONO1" , NULL, "Mono Out" }, |
321 | |
322 | /* Left Line Mux */ |
323 | {"Left Line Mux" , "Line" , "LINPUT1" }, |
324 | {"Left Line Mux" , "PGA" , "Left PGA Mux" }, |
325 | {"Left Line Mux" , "Differential" , "Differential Mux" }, |
326 | |
327 | /* Right Line Mux */ |
328 | {"Right Line Mux" , "Line" , "RINPUT1" }, |
329 | {"Right Line Mux" , "Mic" , "MIC" }, |
330 | {"Right Line Mux" , "PGA" , "Right PGA Mux" }, |
331 | {"Right Line Mux" , "Differential" , "Differential Mux" }, |
332 | |
333 | /* Left PGA Mux */ |
334 | {"Left PGA Mux" , "Line" , "LINPUT1" }, |
335 | {"Left PGA Mux" , "Differential" , "Differential Mux" }, |
336 | |
337 | /* Right PGA Mux */ |
338 | {"Right PGA Mux" , "Line" , "RINPUT1" }, |
339 | {"Right PGA Mux" , "Differential" , "Differential Mux" }, |
340 | |
341 | /* Differential Mux */ |
342 | {"Differential Mux" , "Line" , "LINPUT1" }, |
343 | {"Differential Mux" , "Line" , "RINPUT1" }, |
344 | |
345 | /* Left ADC Mux */ |
346 | {"Left ADC Mux" , "Stereo" , "Left PGA Mux" }, |
347 | {"Left ADC Mux" , "Mono (Left)" , "Left PGA Mux" }, |
348 | {"Left ADC Mux" , "Digital Mono" , "Left PGA Mux" }, |
349 | |
350 | /* Right ADC Mux */ |
351 | {"Right ADC Mux" , "Stereo" , "Right PGA Mux" }, |
352 | {"Right ADC Mux" , "Mono (Right)" , "Right PGA Mux" }, |
353 | {"Right ADC Mux" , "Digital Mono" , "Right PGA Mux" }, |
354 | |
355 | /* ADC */ |
356 | {"Left ADC" , NULL, "Left ADC Mux" }, |
357 | {"Right ADC" , NULL, "Right ADC Mux" }, |
358 | }; |
359 | |
360 | struct _coeff_div { |
361 | u32 mclk; |
362 | u32 rate; |
363 | u16 fs; |
364 | u8 sr:5; |
365 | u8 usb:1; |
366 | }; |
367 | |
368 | /* codec hifi mclk clock divider coefficients */ |
369 | static const struct _coeff_div coeff_div[] = { |
370 | /* 8k */ |
371 | {12288000, 8000, 1536, 0x6, 0x0}, |
372 | {11289600, 8000, 1408, 0x16, 0x0}, |
373 | {18432000, 8000, 2304, 0x7, 0x0}, |
374 | {16934400, 8000, 2112, 0x17, 0x0}, |
375 | {12000000, 8000, 1500, 0x6, 0x1}, |
376 | |
377 | /* 11.025k */ |
378 | {11289600, 11025, 1024, 0x18, 0x0}, |
379 | {16934400, 11025, 1536, 0x19, 0x0}, |
380 | {12000000, 11025, 1088, 0x19, 0x1}, |
381 | |
382 | /* 16k */ |
383 | {12288000, 16000, 768, 0xa, 0x0}, |
384 | {18432000, 16000, 1152, 0xb, 0x0}, |
385 | {12000000, 16000, 750, 0xa, 0x1}, |
386 | |
387 | /* 22.05k */ |
388 | {11289600, 22050, 512, 0x1a, 0x0}, |
389 | {16934400, 22050, 768, 0x1b, 0x0}, |
390 | {12000000, 22050, 544, 0x1b, 0x1}, |
391 | |
392 | /* 32k */ |
393 | {12288000, 32000, 384, 0xc, 0x0}, |
394 | {18432000, 32000, 576, 0xd, 0x0}, |
395 | {12000000, 32000, 375, 0xa, 0x1}, |
396 | |
397 | /* 44.1k */ |
398 | {11289600, 44100, 256, 0x10, 0x0}, |
399 | {16934400, 44100, 384, 0x11, 0x0}, |
400 | {12000000, 44100, 272, 0x11, 0x1}, |
401 | |
402 | /* 48k */ |
403 | {12288000, 48000, 256, 0x0, 0x0}, |
404 | {18432000, 48000, 384, 0x1, 0x0}, |
405 | {12000000, 48000, 250, 0x0, 0x1}, |
406 | |
407 | /* 88.2k */ |
408 | {11289600, 88200, 128, 0x1e, 0x0}, |
409 | {16934400, 88200, 192, 0x1f, 0x0}, |
410 | {12000000, 88200, 136, 0x1f, 0x1}, |
411 | |
412 | /* 96k */ |
413 | {12288000, 96000, 128, 0xe, 0x0}, |
414 | {18432000, 96000, 192, 0xf, 0x0}, |
415 | {12000000, 96000, 125, 0xe, 0x1}, |
416 | }; |
417 | |
418 | static int get_coeff(int mclk, int rate) |
419 | { |
420 | int i; |
421 | |
422 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
423 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) |
424 | return i; |
425 | } |
426 | return -EINVAL; |
427 | } |
428 | |
429 | static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
430 | int clk_id, unsigned int freq, int dir) |
431 | { |
432 | struct snd_soc_component *component = codec_dai->component; |
433 | struct wm8971_priv *wm8971 = snd_soc_component_get_drvdata(c: component); |
434 | |
435 | switch (freq) { |
436 | case 11289600: |
437 | case 12000000: |
438 | case 12288000: |
439 | case 16934400: |
440 | case 18432000: |
441 | wm8971->sysclk = freq; |
442 | return 0; |
443 | } |
444 | return -EINVAL; |
445 | } |
446 | |
447 | static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai, |
448 | unsigned int fmt) |
449 | { |
450 | struct snd_soc_component *component = codec_dai->component; |
451 | u16 iface = 0; |
452 | |
453 | /* set master/slave audio interface */ |
454 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
455 | case SND_SOC_DAIFMT_CBM_CFM: |
456 | iface = 0x0040; |
457 | break; |
458 | case SND_SOC_DAIFMT_CBS_CFS: |
459 | break; |
460 | default: |
461 | return -EINVAL; |
462 | } |
463 | |
464 | /* interface format */ |
465 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
466 | case SND_SOC_DAIFMT_I2S: |
467 | iface |= 0x0002; |
468 | break; |
469 | case SND_SOC_DAIFMT_RIGHT_J: |
470 | break; |
471 | case SND_SOC_DAIFMT_LEFT_J: |
472 | iface |= 0x0001; |
473 | break; |
474 | case SND_SOC_DAIFMT_DSP_A: |
475 | iface |= 0x0003; |
476 | break; |
477 | case SND_SOC_DAIFMT_DSP_B: |
478 | iface |= 0x0013; |
479 | break; |
480 | default: |
481 | return -EINVAL; |
482 | } |
483 | |
484 | /* clock inversion */ |
485 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
486 | case SND_SOC_DAIFMT_NB_NF: |
487 | break; |
488 | case SND_SOC_DAIFMT_IB_IF: |
489 | iface |= 0x0090; |
490 | break; |
491 | case SND_SOC_DAIFMT_IB_NF: |
492 | iface |= 0x0080; |
493 | break; |
494 | case SND_SOC_DAIFMT_NB_IF: |
495 | iface |= 0x0010; |
496 | break; |
497 | default: |
498 | return -EINVAL; |
499 | } |
500 | |
501 | snd_soc_component_write(component, WM8971_IFACE, val: iface); |
502 | return 0; |
503 | } |
504 | |
505 | static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, |
506 | struct snd_pcm_hw_params *params, |
507 | struct snd_soc_dai *dai) |
508 | { |
509 | struct snd_soc_component *component = dai->component; |
510 | struct wm8971_priv *wm8971 = snd_soc_component_get_drvdata(c: component); |
511 | u16 iface = snd_soc_component_read(component, WM8971_IFACE) & 0x1f3; |
512 | u16 srate = snd_soc_component_read(component, WM8971_SRATE) & 0x1c0; |
513 | int coeff = get_coeff(mclk: wm8971->sysclk, rate: params_rate(p: params)); |
514 | |
515 | /* bit size */ |
516 | switch (params_width(p: params)) { |
517 | case 16: |
518 | break; |
519 | case 20: |
520 | iface |= 0x0004; |
521 | break; |
522 | case 24: |
523 | iface |= 0x0008; |
524 | break; |
525 | case 32: |
526 | iface |= 0x000c; |
527 | break; |
528 | } |
529 | |
530 | /* set iface & srate */ |
531 | snd_soc_component_write(component, WM8971_IFACE, val: iface); |
532 | if (coeff >= 0) |
533 | snd_soc_component_write(component, WM8971_SRATE, val: srate | |
534 | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); |
535 | |
536 | return 0; |
537 | } |
538 | |
539 | static int wm8971_mute(struct snd_soc_dai *dai, int mute, int direction) |
540 | { |
541 | struct snd_soc_component *component = dai->component; |
542 | u16 mute_reg = snd_soc_component_read(component, WM8971_ADCDAC) & 0xfff7; |
543 | |
544 | if (mute) |
545 | snd_soc_component_write(component, WM8971_ADCDAC, val: mute_reg | 0x8); |
546 | else |
547 | snd_soc_component_write(component, WM8971_ADCDAC, val: mute_reg); |
548 | return 0; |
549 | } |
550 | |
551 | static void wm8971_charge_work(struct work_struct *work) |
552 | { |
553 | struct wm8971_priv *wm8971 = |
554 | container_of(work, struct wm8971_priv, charge_work.work); |
555 | |
556 | /* Set to 500k */ |
557 | regmap_update_bits(map: wm8971->regmap, WM8971_PWR1, mask: 0x0180, val: 0x0100); |
558 | } |
559 | |
560 | static int wm8971_set_bias_level(struct snd_soc_component *component, |
561 | enum snd_soc_bias_level level) |
562 | { |
563 | struct wm8971_priv *wm8971 = snd_soc_component_get_drvdata(c: component); |
564 | u16 pwr_reg = snd_soc_component_read(component, WM8971_PWR1) & 0xfe3e; |
565 | |
566 | switch (level) { |
567 | case SND_SOC_BIAS_ON: |
568 | /* set vmid to 50k and unmute dac */ |
569 | snd_soc_component_write(component, WM8971_PWR1, val: pwr_reg | 0x00c1); |
570 | break; |
571 | case SND_SOC_BIAS_PREPARE: |
572 | /* Wait until fully charged */ |
573 | flush_delayed_work(dwork: &wm8971->charge_work); |
574 | break; |
575 | case SND_SOC_BIAS_STANDBY: |
576 | if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { |
577 | snd_soc_component_cache_sync(component); |
578 | /* charge output caps - set vmid to 5k for quick power up */ |
579 | snd_soc_component_write(component, WM8971_PWR1, val: pwr_reg | 0x01c0); |
580 | queue_delayed_work(wq: system_power_efficient_wq, |
581 | dwork: &wm8971->charge_work, delay: msecs_to_jiffies(m: 1000)); |
582 | } else { |
583 | /* mute dac and set vmid to 500k, enable VREF */ |
584 | snd_soc_component_write(component, WM8971_PWR1, val: pwr_reg | 0x0140); |
585 | } |
586 | |
587 | break; |
588 | case SND_SOC_BIAS_OFF: |
589 | cancel_delayed_work_sync(dwork: &wm8971->charge_work); |
590 | snd_soc_component_write(component, WM8971_PWR1, val: 0x0001); |
591 | break; |
592 | } |
593 | return 0; |
594 | } |
595 | |
596 | #define WM8971_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
597 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ |
598 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) |
599 | |
600 | #define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
601 | SNDRV_PCM_FMTBIT_S24_LE) |
602 | |
603 | static const struct snd_soc_dai_ops wm8971_dai_ops = { |
604 | .hw_params = wm8971_pcm_hw_params, |
605 | .mute_stream = wm8971_mute, |
606 | .set_fmt = wm8971_set_dai_fmt, |
607 | .set_sysclk = wm8971_set_dai_sysclk, |
608 | .no_capture_mute = 1, |
609 | }; |
610 | |
611 | static struct snd_soc_dai_driver wm8971_dai = { |
612 | .name = "wm8971-hifi" , |
613 | .playback = { |
614 | .stream_name = "Playback" , |
615 | .channels_min = 1, |
616 | .channels_max = 2, |
617 | .rates = WM8971_RATES, |
618 | .formats = WM8971_FORMATS,}, |
619 | .capture = { |
620 | .stream_name = "Capture" , |
621 | .channels_min = 1, |
622 | .channels_max = 2, |
623 | .rates = WM8971_RATES, |
624 | .formats = WM8971_FORMATS,}, |
625 | .ops = &wm8971_dai_ops, |
626 | }; |
627 | |
628 | static int wm8971_probe(struct snd_soc_component *component) |
629 | { |
630 | struct wm8971_priv *wm8971 = snd_soc_component_get_drvdata(c: component); |
631 | |
632 | INIT_DELAYED_WORK(&wm8971->charge_work, wm8971_charge_work); |
633 | |
634 | wm8971_reset(component); |
635 | |
636 | /* set the update bits */ |
637 | snd_soc_component_update_bits(component, WM8971_LDAC, mask: 0x0100, val: 0x0100); |
638 | snd_soc_component_update_bits(component, WM8971_RDAC, mask: 0x0100, val: 0x0100); |
639 | snd_soc_component_update_bits(component, WM8971_LOUT1V, mask: 0x0100, val: 0x0100); |
640 | snd_soc_component_update_bits(component, WM8971_ROUT1V, mask: 0x0100, val: 0x0100); |
641 | snd_soc_component_update_bits(component, WM8971_LOUT2V, mask: 0x0100, val: 0x0100); |
642 | snd_soc_component_update_bits(component, WM8971_ROUT2V, mask: 0x0100, val: 0x0100); |
643 | snd_soc_component_update_bits(component, WM8971_LINVOL, mask: 0x0100, val: 0x0100); |
644 | snd_soc_component_update_bits(component, WM8971_RINVOL, mask: 0x0100, val: 0x0100); |
645 | |
646 | return 0; |
647 | } |
648 | |
649 | static const struct snd_soc_component_driver soc_component_dev_wm8971 = { |
650 | .probe = wm8971_probe, |
651 | .set_bias_level = wm8971_set_bias_level, |
652 | .controls = wm8971_snd_controls, |
653 | .num_controls = ARRAY_SIZE(wm8971_snd_controls), |
654 | .dapm_widgets = wm8971_dapm_widgets, |
655 | .num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets), |
656 | .dapm_routes = wm8971_dapm_routes, |
657 | .num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes), |
658 | .suspend_bias_off = 1, |
659 | .idle_bias_on = 1, |
660 | .use_pmdown_time = 1, |
661 | .endianness = 1, |
662 | }; |
663 | |
664 | static const struct regmap_config wm8971_regmap = { |
665 | .reg_bits = 7, |
666 | .val_bits = 9, |
667 | .max_register = WM8971_MOUTV, |
668 | |
669 | .reg_defaults = wm8971_reg_defaults, |
670 | .num_reg_defaults = ARRAY_SIZE(wm8971_reg_defaults), |
671 | .cache_type = REGCACHE_MAPLE, |
672 | }; |
673 | |
674 | static int wm8971_i2c_probe(struct i2c_client *i2c) |
675 | { |
676 | struct wm8971_priv *wm8971; |
677 | |
678 | wm8971 = devm_kzalloc(dev: &i2c->dev, size: sizeof(struct wm8971_priv), |
679 | GFP_KERNEL); |
680 | if (wm8971 == NULL) |
681 | return -ENOMEM; |
682 | |
683 | wm8971->regmap = devm_regmap_init_i2c(i2c, &wm8971_regmap); |
684 | if (IS_ERR(ptr: wm8971->regmap)) |
685 | return PTR_ERR(ptr: wm8971->regmap); |
686 | |
687 | i2c_set_clientdata(client: i2c, data: wm8971); |
688 | |
689 | return devm_snd_soc_register_component(dev: &i2c->dev, |
690 | component_driver: &soc_component_dev_wm8971, dai_drv: &wm8971_dai, num_dai: 1); |
691 | } |
692 | |
693 | static const struct i2c_device_id wm8971_i2c_id[] = { |
694 | { "wm8971" , 0 }, |
695 | { } |
696 | }; |
697 | MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id); |
698 | |
699 | static struct i2c_driver wm8971_i2c_driver = { |
700 | .driver = { |
701 | .name = "wm8971" , |
702 | }, |
703 | .probe = wm8971_i2c_probe, |
704 | .id_table = wm8971_i2c_id, |
705 | }; |
706 | |
707 | module_i2c_driver(wm8971_i2c_driver); |
708 | |
709 | MODULE_DESCRIPTION("ASoC WM8971 driver" ); |
710 | MODULE_AUTHOR("Lab126" ); |
711 | MODULE_LICENSE("GPL" ); |
712 | |