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8bae3e23 KK |
1 | /* |
2 | * wm8971.c -- WM8971 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2005 Lab126, Inc. | |
5 | * | |
6 | * Author: Kenneth Kiraly <kiraly@lab126.com> | |
7 | * | |
8 | * Based on wm8753.c by Liam Girdwood | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/moduleparam.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/pm.h> | |
21 | #include <linux/i2c.h> | |
bc7f610f | 22 | #include <linux/regmap.h> |
5a0e3ad6 | 23 | #include <linux/slab.h> |
8bae3e23 KK |
24 | #include <sound/core.h> |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
8bae3e23 KK |
28 | #include <sound/initval.h> |
29 | ||
30 | #include "wm8971.h" | |
31 | ||
8bae3e23 KK |
32 | #define WM8971_REG_COUNT 43 |
33 | ||
34 | static struct workqueue_struct *wm8971_workq = NULL; | |
35 | ||
36 | /* codec private data */ | |
37 | struct wm8971_priv { | |
38 | unsigned int sysclk; | |
39 | }; | |
40 | ||
41 | /* | |
42 | * wm8971 register cache | |
43 | * We can't read the WM8971 register space when we | |
44 | * are using 2 wire for device control, so we cache them instead. | |
45 | */ | |
bc7f610f MB |
46 | static const struct reg_default wm8971_reg_defaults[] = { |
47 | { 0, 0x0097 }, | |
48 | { 1, 0x0097 }, | |
49 | { 2, 0x0079 }, | |
50 | { 3, 0x0079 }, | |
51 | { 4, 0x0000 }, | |
52 | { 5, 0x0008 }, | |
53 | { 6, 0x0000 }, | |
54 | { 7, 0x000a }, | |
55 | { 8, 0x0000 }, | |
56 | { 9, 0x0000 }, | |
57 | { 10, 0x00ff }, | |
58 | { 11, 0x00ff }, | |
59 | { 12, 0x000f }, | |
60 | { 13, 0x000f }, | |
61 | { 14, 0x0000 }, | |
62 | { 15, 0x0000 }, | |
63 | { 16, 0x0000 }, | |
64 | { 17, 0x007b }, | |
65 | { 18, 0x0000 }, | |
66 | { 19, 0x0032 }, | |
67 | { 20, 0x0000 }, | |
68 | { 21, 0x00c3 }, | |
69 | { 22, 0x00c3 }, | |
70 | { 23, 0x00c0 }, | |
71 | { 24, 0x0000 }, | |
72 | { 25, 0x0000 }, | |
73 | { 26, 0x0000 }, | |
74 | { 27, 0x0000 }, | |
75 | { 28, 0x0000 }, | |
76 | { 29, 0x0000 }, | |
77 | { 30, 0x0000 }, | |
78 | { 31, 0x0000 }, | |
79 | { 32, 0x0000 }, | |
80 | { 33, 0x0000 }, | |
81 | { 34, 0x0050 }, | |
82 | { 35, 0x0050 }, | |
83 | { 36, 0x0050 }, | |
84 | { 37, 0x0050 }, | |
85 | { 38, 0x0050 }, | |
86 | { 39, 0x0050 }, | |
87 | { 40, 0x0079 }, | |
88 | { 41, 0x0079 }, | |
89 | { 42, 0x0079 }, | |
8bae3e23 KK |
90 | }; |
91 | ||
17a52fd6 | 92 | #define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0) |
8bae3e23 KK |
93 | |
94 | /* WM8971 Controls */ | |
95 | static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" }; | |
96 | static const char *wm8971_bass_filter[] = { "130Hz @ 48kHz", | |
97 | "200Hz @ 48kHz" }; | |
98 | static const char *wm8971_treble[] = { "8kHz", "4kHz" }; | |
99 | static const char *wm8971_alc_func[] = { "Off", "Right", "Left", "Stereo" }; | |
100 | static const char *wm8971_ng_type[] = { "Constant PGA Gain", | |
101 | "Mute ADC Output" }; | |
102 | static const char *wm8971_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; | |
103 | static const char *wm8971_mono_mux[] = {"Stereo", "Mono (Left)", | |
104 | "Mono (Right)", "Digital Mono"}; | |
105 | static const char *wm8971_dac_phase[] = { "Non Inverted", "Inverted" }; | |
106 | static const char *wm8971_lline_mux[] = {"Line", "NC", "NC", "PGA", | |
107 | "Differential"}; | |
108 | static const char *wm8971_rline_mux[] = {"Line", "Mic", "NC", "PGA", | |
109 | "Differential"}; | |
110 | static const char *wm8971_lpga_sel[] = {"Line", "NC", "NC", "Differential"}; | |
111 | static const char *wm8971_rpga_sel[] = {"Line", "Mic", "NC", "Differential"}; | |
112 | static const char *wm8971_adcpol[] = {"Normal", "L Invert", "R Invert", | |
113 | "L + R Invert"}; | |
114 | ||
115 | static const struct soc_enum wm8971_enum[] = { | |
116 | SOC_ENUM_SINGLE(WM8971_BASS, 7, 2, wm8971_bass), /* 0 */ | |
117 | SOC_ENUM_SINGLE(WM8971_BASS, 6, 2, wm8971_bass_filter), | |
118 | SOC_ENUM_SINGLE(WM8971_TREBLE, 6, 2, wm8971_treble), | |
119 | SOC_ENUM_SINGLE(WM8971_ALC1, 7, 4, wm8971_alc_func), | |
120 | SOC_ENUM_SINGLE(WM8971_NGATE, 1, 2, wm8971_ng_type), /* 4 */ | |
121 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 1, 4, wm8971_deemp), | |
122 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 4, 4, wm8971_mono_mux), | |
123 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 1, 2, wm8971_dac_phase), | |
124 | SOC_ENUM_SINGLE(WM8971_LOUTM1, 0, 5, wm8971_lline_mux), /* 8 */ | |
125 | SOC_ENUM_SINGLE(WM8971_ROUTM1, 0, 5, wm8971_rline_mux), | |
126 | SOC_ENUM_SINGLE(WM8971_LADCIN, 6, 4, wm8971_lpga_sel), | |
127 | SOC_ENUM_SINGLE(WM8971_RADCIN, 6, 4, wm8971_rpga_sel), | |
128 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 5, 4, wm8971_adcpol), /* 12 */ | |
129 | SOC_ENUM_SINGLE(WM8971_ADCIN, 6, 4, wm8971_mono_mux), | |
130 | }; | |
131 | ||
132 | static const struct snd_kcontrol_new wm8971_snd_controls[] = { | |
133 | SOC_DOUBLE_R("Capture Volume", WM8971_LINVOL, WM8971_RINVOL, 0, 63, 0), | |
134 | SOC_DOUBLE_R("Capture ZC Switch", WM8971_LINVOL, WM8971_RINVOL, | |
135 | 6, 1, 0), | |
136 | SOC_DOUBLE_R("Capture Switch", WM8971_LINVOL, WM8971_RINVOL, 7, 1, 1), | |
137 | ||
138 | SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8971_LOUT1V, | |
139 | WM8971_ROUT1V, 7, 1, 0), | |
140 | SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8971_LOUT2V, | |
141 | WM8971_ROUT2V, 7, 1, 0), | |
142 | SOC_SINGLE("Mono Playback ZC Switch", WM8971_MOUTV, 7, 1, 0), | |
143 | ||
144 | SOC_DOUBLE_R("PCM Volume", WM8971_LDAC, WM8971_RDAC, 0, 255, 0), | |
145 | ||
146 | SOC_DOUBLE_R("Bypass Left Playback Volume", WM8971_LOUTM1, | |
147 | WM8971_LOUTM2, 4, 7, 1), | |
148 | SOC_DOUBLE_R("Bypass Right Playback Volume", WM8971_ROUTM1, | |
149 | WM8971_ROUTM2, 4, 7, 1), | |
150 | SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8971_MOUTM1, | |
151 | WM8971_MOUTM2, 4, 7, 1), | |
152 | ||
153 | SOC_DOUBLE_R("Headphone Playback Volume", WM8971_LOUT1V, | |
154 | WM8971_ROUT1V, 0, 127, 0), | |
155 | SOC_DOUBLE_R("Speaker Playback Volume", WM8971_LOUT2V, | |
156 | WM8971_ROUT2V, 0, 127, 0), | |
157 | ||
158 | SOC_ENUM("Bass Boost", wm8971_enum[0]), | |
159 | SOC_ENUM("Bass Filter", wm8971_enum[1]), | |
160 | SOC_SINGLE("Bass Volume", WM8971_BASS, 0, 7, 1), | |
161 | ||
162 | SOC_SINGLE("Treble Volume", WM8971_TREBLE, 0, 7, 0), | |
163 | SOC_ENUM("Treble Cut-off", wm8971_enum[2]), | |
164 | ||
165 | SOC_SINGLE("Capture Filter Switch", WM8971_ADCDAC, 0, 1, 1), | |
166 | ||
167 | SOC_SINGLE("ALC Target Volume", WM8971_ALC1, 0, 7, 0), | |
168 | SOC_SINGLE("ALC Max Volume", WM8971_ALC1, 4, 7, 0), | |
169 | ||
170 | SOC_SINGLE("ALC Capture Target Volume", WM8971_ALC1, 0, 7, 0), | |
171 | SOC_SINGLE("ALC Capture Max Volume", WM8971_ALC1, 4, 7, 0), | |
172 | SOC_ENUM("ALC Capture Function", wm8971_enum[3]), | |
173 | SOC_SINGLE("ALC Capture ZC Switch", WM8971_ALC2, 7, 1, 0), | |
174 | SOC_SINGLE("ALC Capture Hold Time", WM8971_ALC2, 0, 15, 0), | |
175 | SOC_SINGLE("ALC Capture Decay Time", WM8971_ALC3, 4, 15, 0), | |
176 | SOC_SINGLE("ALC Capture Attack Time", WM8971_ALC3, 0, 15, 0), | |
177 | SOC_SINGLE("ALC Capture NG Threshold", WM8971_NGATE, 3, 31, 0), | |
178 | SOC_ENUM("ALC Capture NG Type", wm8971_enum[4]), | |
179 | SOC_SINGLE("ALC Capture NG Switch", WM8971_NGATE, 0, 1, 0), | |
180 | ||
181 | SOC_SINGLE("Capture 6dB Attenuate", WM8971_ADCDAC, 8, 1, 0), | |
182 | SOC_SINGLE("Playback 6dB Attenuate", WM8971_ADCDAC, 7, 1, 0), | |
183 | ||
184 | SOC_ENUM("Playback De-emphasis", wm8971_enum[5]), | |
185 | SOC_ENUM("Playback Function", wm8971_enum[6]), | |
186 | SOC_ENUM("Playback Phase", wm8971_enum[7]), | |
187 | ||
188 | SOC_DOUBLE_R("Mic Boost", WM8971_LADCIN, WM8971_RADCIN, 4, 3, 0), | |
189 | }; | |
190 | ||
8bae3e23 KK |
191 | /* |
192 | * DAPM Controls | |
193 | */ | |
194 | ||
195 | /* Left Mixer */ | |
196 | static const struct snd_kcontrol_new wm8971_left_mixer_controls[] = { | |
197 | SOC_DAPM_SINGLE("Playback Switch", WM8971_LOUTM1, 8, 1, 0), | |
198 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_LOUTM1, 7, 1, 0), | |
199 | SOC_DAPM_SINGLE("Right Playback Switch", WM8971_LOUTM2, 8, 1, 0), | |
200 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_LOUTM2, 7, 1, 0), | |
201 | }; | |
202 | ||
203 | /* Right Mixer */ | |
204 | static const struct snd_kcontrol_new wm8971_right_mixer_controls[] = { | |
205 | SOC_DAPM_SINGLE("Left Playback Switch", WM8971_ROUTM1, 8, 1, 0), | |
206 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_ROUTM1, 7, 1, 0), | |
207 | SOC_DAPM_SINGLE("Playback Switch", WM8971_ROUTM2, 8, 1, 0), | |
208 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_ROUTM2, 7, 1, 0), | |
209 | }; | |
210 | ||
211 | /* Mono Mixer */ | |
212 | static const struct snd_kcontrol_new wm8971_mono_mixer_controls[] = { | |
213 | SOC_DAPM_SINGLE("Left Playback Switch", WM8971_MOUTM1, 8, 1, 0), | |
214 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_MOUTM1, 7, 1, 0), | |
215 | SOC_DAPM_SINGLE("Right Playback Switch", WM8971_MOUTM2, 8, 1, 0), | |
216 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_MOUTM2, 7, 1, 0), | |
217 | }; | |
218 | ||
219 | /* Left Line Mux */ | |
220 | static const struct snd_kcontrol_new wm8971_left_line_controls = | |
221 | SOC_DAPM_ENUM("Route", wm8971_enum[8]); | |
222 | ||
223 | /* Right Line Mux */ | |
224 | static const struct snd_kcontrol_new wm8971_right_line_controls = | |
225 | SOC_DAPM_ENUM("Route", wm8971_enum[9]); | |
226 | ||
227 | /* Left PGA Mux */ | |
228 | static const struct snd_kcontrol_new wm8971_left_pga_controls = | |
229 | SOC_DAPM_ENUM("Route", wm8971_enum[10]); | |
230 | ||
231 | /* Right PGA Mux */ | |
232 | static const struct snd_kcontrol_new wm8971_right_pga_controls = | |
233 | SOC_DAPM_ENUM("Route", wm8971_enum[11]); | |
234 | ||
235 | /* Mono ADC Mux */ | |
236 | static const struct snd_kcontrol_new wm8971_monomux_controls = | |
237 | SOC_DAPM_ENUM("Route", wm8971_enum[13]); | |
238 | ||
239 | static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = { | |
240 | SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, | |
241 | &wm8971_left_mixer_controls[0], | |
242 | ARRAY_SIZE(wm8971_left_mixer_controls)), | |
243 | SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, | |
244 | &wm8971_right_mixer_controls[0], | |
245 | ARRAY_SIZE(wm8971_right_mixer_controls)), | |
246 | SND_SOC_DAPM_MIXER("Mono Mixer", WM8971_PWR2, 2, 0, | |
247 | &wm8971_mono_mixer_controls[0], | |
248 | ARRAY_SIZE(wm8971_mono_mixer_controls)), | |
249 | ||
250 | SND_SOC_DAPM_PGA("Right Out 2", WM8971_PWR2, 3, 0, NULL, 0), | |
251 | SND_SOC_DAPM_PGA("Left Out 2", WM8971_PWR2, 4, 0, NULL, 0), | |
252 | SND_SOC_DAPM_PGA("Right Out 1", WM8971_PWR2, 5, 0, NULL, 0), | |
253 | SND_SOC_DAPM_PGA("Left Out 1", WM8971_PWR2, 6, 0, NULL, 0), | |
254 | SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8971_PWR2, 7, 0), | |
255 | SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8971_PWR2, 8, 0), | |
256 | SND_SOC_DAPM_PGA("Mono Out 1", WM8971_PWR2, 2, 0, NULL, 0), | |
257 | ||
7d6f6b0f | 258 | SND_SOC_DAPM_SUPPLY("Mic Bias", WM8971_PWR1, 1, 0, NULL, 0), |
8bae3e23 KK |
259 | SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8971_PWR1, 2, 0), |
260 | SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8971_PWR1, 3, 0), | |
261 | ||
262 | SND_SOC_DAPM_MUX("Left PGA Mux", WM8971_PWR1, 5, 0, | |
263 | &wm8971_left_pga_controls), | |
264 | SND_SOC_DAPM_MUX("Right PGA Mux", WM8971_PWR1, 4, 0, | |
265 | &wm8971_right_pga_controls), | |
266 | SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, | |
267 | &wm8971_left_line_controls), | |
268 | SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, | |
269 | &wm8971_right_line_controls), | |
270 | ||
271 | SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, | |
272 | &wm8971_monomux_controls), | |
273 | SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, | |
274 | &wm8971_monomux_controls), | |
275 | ||
276 | SND_SOC_DAPM_OUTPUT("LOUT1"), | |
277 | SND_SOC_DAPM_OUTPUT("ROUT1"), | |
278 | SND_SOC_DAPM_OUTPUT("LOUT2"), | |
279 | SND_SOC_DAPM_OUTPUT("ROUT2"), | |
280 | SND_SOC_DAPM_OUTPUT("MONO"), | |
281 | ||
282 | SND_SOC_DAPM_INPUT("LINPUT1"), | |
283 | SND_SOC_DAPM_INPUT("RINPUT1"), | |
284 | SND_SOC_DAPM_INPUT("MIC"), | |
285 | }; | |
286 | ||
c4850644 | 287 | static const struct snd_soc_dapm_route wm8971_dapm_routes[] = { |
8bae3e23 KK |
288 | /* left mixer */ |
289 | {"Left Mixer", "Playback Switch", "Left DAC"}, | |
290 | {"Left Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
291 | {"Left Mixer", "Right Playback Switch", "Right DAC"}, | |
292 | {"Left Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
293 | ||
294 | /* right mixer */ | |
295 | {"Right Mixer", "Left Playback Switch", "Left DAC"}, | |
296 | {"Right Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
297 | {"Right Mixer", "Playback Switch", "Right DAC"}, | |
298 | {"Right Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
299 | ||
300 | /* left out 1 */ | |
301 | {"Left Out 1", NULL, "Left Mixer"}, | |
302 | {"LOUT1", NULL, "Left Out 1"}, | |
303 | ||
304 | /* left out 2 */ | |
305 | {"Left Out 2", NULL, "Left Mixer"}, | |
306 | {"LOUT2", NULL, "Left Out 2"}, | |
307 | ||
308 | /* right out 1 */ | |
309 | {"Right Out 1", NULL, "Right Mixer"}, | |
310 | {"ROUT1", NULL, "Right Out 1"}, | |
311 | ||
312 | /* right out 2 */ | |
313 | {"Right Out 2", NULL, "Right Mixer"}, | |
314 | {"ROUT2", NULL, "Right Out 2"}, | |
315 | ||
316 | /* mono mixer */ | |
317 | {"Mono Mixer", "Left Playback Switch", "Left DAC"}, | |
318 | {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
319 | {"Mono Mixer", "Right Playback Switch", "Right DAC"}, | |
320 | {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
321 | ||
322 | /* mono out */ | |
323 | {"Mono Out", NULL, "Mono Mixer"}, | |
324 | {"MONO1", NULL, "Mono Out"}, | |
325 | ||
326 | /* Left Line Mux */ | |
327 | {"Left Line Mux", "Line", "LINPUT1"}, | |
328 | {"Left Line Mux", "PGA", "Left PGA Mux"}, | |
329 | {"Left Line Mux", "Differential", "Differential Mux"}, | |
330 | ||
331 | /* Right Line Mux */ | |
332 | {"Right Line Mux", "Line", "RINPUT1"}, | |
333 | {"Right Line Mux", "Mic", "MIC"}, | |
334 | {"Right Line Mux", "PGA", "Right PGA Mux"}, | |
335 | {"Right Line Mux", "Differential", "Differential Mux"}, | |
336 | ||
337 | /* Left PGA Mux */ | |
338 | {"Left PGA Mux", "Line", "LINPUT1"}, | |
339 | {"Left PGA Mux", "Differential", "Differential Mux"}, | |
340 | ||
341 | /* Right PGA Mux */ | |
342 | {"Right PGA Mux", "Line", "RINPUT1"}, | |
343 | {"Right PGA Mux", "Differential", "Differential Mux"}, | |
344 | ||
345 | /* Differential Mux */ | |
346 | {"Differential Mux", "Line", "LINPUT1"}, | |
347 | {"Differential Mux", "Line", "RINPUT1"}, | |
348 | ||
349 | /* Left ADC Mux */ | |
350 | {"Left ADC Mux", "Stereo", "Left PGA Mux"}, | |
351 | {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"}, | |
352 | {"Left ADC Mux", "Digital Mono", "Left PGA Mux"}, | |
353 | ||
354 | /* Right ADC Mux */ | |
355 | {"Right ADC Mux", "Stereo", "Right PGA Mux"}, | |
356 | {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"}, | |
357 | {"Right ADC Mux", "Digital Mono", "Right PGA Mux"}, | |
358 | ||
359 | /* ADC */ | |
360 | {"Left ADC", NULL, "Left ADC Mux"}, | |
361 | {"Right ADC", NULL, "Right ADC Mux"}, | |
362 | }; | |
363 | ||
8bae3e23 KK |
364 | struct _coeff_div { |
365 | u32 mclk; | |
366 | u32 rate; | |
367 | u16 fs; | |
368 | u8 sr:5; | |
369 | u8 usb:1; | |
370 | }; | |
371 | ||
372 | /* codec hifi mclk clock divider coefficients */ | |
373 | static const struct _coeff_div coeff_div[] = { | |
374 | /* 8k */ | |
375 | {12288000, 8000, 1536, 0x6, 0x0}, | |
376 | {11289600, 8000, 1408, 0x16, 0x0}, | |
377 | {18432000, 8000, 2304, 0x7, 0x0}, | |
378 | {16934400, 8000, 2112, 0x17, 0x0}, | |
379 | {12000000, 8000, 1500, 0x6, 0x1}, | |
380 | ||
381 | /* 11.025k */ | |
382 | {11289600, 11025, 1024, 0x18, 0x0}, | |
383 | {16934400, 11025, 1536, 0x19, 0x0}, | |
384 | {12000000, 11025, 1088, 0x19, 0x1}, | |
385 | ||
386 | /* 16k */ | |
387 | {12288000, 16000, 768, 0xa, 0x0}, | |
388 | {18432000, 16000, 1152, 0xb, 0x0}, | |
389 | {12000000, 16000, 750, 0xa, 0x1}, | |
390 | ||
391 | /* 22.05k */ | |
392 | {11289600, 22050, 512, 0x1a, 0x0}, | |
393 | {16934400, 22050, 768, 0x1b, 0x0}, | |
394 | {12000000, 22050, 544, 0x1b, 0x1}, | |
395 | ||
396 | /* 32k */ | |
397 | {12288000, 32000, 384, 0xc, 0x0}, | |
398 | {18432000, 32000, 576, 0xd, 0x0}, | |
399 | {12000000, 32000, 375, 0xa, 0x1}, | |
400 | ||
401 | /* 44.1k */ | |
402 | {11289600, 44100, 256, 0x10, 0x0}, | |
403 | {16934400, 44100, 384, 0x11, 0x0}, | |
404 | {12000000, 44100, 272, 0x11, 0x1}, | |
405 | ||
406 | /* 48k */ | |
407 | {12288000, 48000, 256, 0x0, 0x0}, | |
408 | {18432000, 48000, 384, 0x1, 0x0}, | |
409 | {12000000, 48000, 250, 0x0, 0x1}, | |
410 | ||
411 | /* 88.2k */ | |
412 | {11289600, 88200, 128, 0x1e, 0x0}, | |
413 | {16934400, 88200, 192, 0x1f, 0x0}, | |
414 | {12000000, 88200, 136, 0x1f, 0x1}, | |
415 | ||
416 | /* 96k */ | |
417 | {12288000, 96000, 128, 0xe, 0x0}, | |
418 | {18432000, 96000, 192, 0xf, 0x0}, | |
419 | {12000000, 96000, 125, 0xe, 0x1}, | |
420 | }; | |
421 | ||
422 | static int get_coeff(int mclk, int rate) | |
423 | { | |
424 | int i; | |
425 | ||
426 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
427 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
428 | return i; | |
429 | } | |
430 | return -EINVAL; | |
431 | } | |
432 | ||
433 | static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
434 | int clk_id, unsigned int freq, int dir) | |
435 | { | |
436 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 437 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
8bae3e23 KK |
438 | |
439 | switch (freq) { | |
440 | case 11289600: | |
441 | case 12000000: | |
442 | case 12288000: | |
443 | case 16934400: | |
444 | case 18432000: | |
445 | wm8971->sysclk = freq; | |
446 | return 0; | |
447 | } | |
448 | return -EINVAL; | |
449 | } | |
450 | ||
451 | static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
452 | unsigned int fmt) | |
453 | { | |
454 | struct snd_soc_codec *codec = codec_dai->codec; | |
455 | u16 iface = 0; | |
456 | ||
457 | /* set master/slave audio interface */ | |
458 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
459 | case SND_SOC_DAIFMT_CBM_CFM: | |
460 | iface = 0x0040; | |
461 | break; | |
462 | case SND_SOC_DAIFMT_CBS_CFS: | |
463 | break; | |
464 | default: | |
465 | return -EINVAL; | |
466 | } | |
467 | ||
468 | /* interface format */ | |
469 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
470 | case SND_SOC_DAIFMT_I2S: | |
471 | iface |= 0x0002; | |
472 | break; | |
473 | case SND_SOC_DAIFMT_RIGHT_J: | |
474 | break; | |
475 | case SND_SOC_DAIFMT_LEFT_J: | |
476 | iface |= 0x0001; | |
477 | break; | |
478 | case SND_SOC_DAIFMT_DSP_A: | |
479 | iface |= 0x0003; | |
480 | break; | |
481 | case SND_SOC_DAIFMT_DSP_B: | |
482 | iface |= 0x0013; | |
483 | break; | |
484 | default: | |
485 | return -EINVAL; | |
486 | } | |
487 | ||
488 | /* clock inversion */ | |
489 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
490 | case SND_SOC_DAIFMT_NB_NF: | |
491 | break; | |
492 | case SND_SOC_DAIFMT_IB_IF: | |
493 | iface |= 0x0090; | |
494 | break; | |
495 | case SND_SOC_DAIFMT_IB_NF: | |
496 | iface |= 0x0080; | |
497 | break; | |
498 | case SND_SOC_DAIFMT_NB_IF: | |
499 | iface |= 0x0010; | |
500 | break; | |
501 | default: | |
502 | return -EINVAL; | |
503 | } | |
504 | ||
17a52fd6 | 505 | snd_soc_write(codec, WM8971_IFACE, iface); |
8bae3e23 KK |
506 | return 0; |
507 | } | |
508 | ||
509 | static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
510 | struct snd_pcm_hw_params *params, |
511 | struct snd_soc_dai *dai) | |
8bae3e23 | 512 | { |
e6968a17 | 513 | struct snd_soc_codec *codec = dai->codec; |
b2c812e2 | 514 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 MB |
515 | u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3; |
516 | u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0; | |
8bae3e23 KK |
517 | int coeff = get_coeff(wm8971->sysclk, params_rate(params)); |
518 | ||
519 | /* bit size */ | |
520 | switch (params_format(params)) { | |
521 | case SNDRV_PCM_FORMAT_S16_LE: | |
522 | break; | |
523 | case SNDRV_PCM_FORMAT_S20_3LE: | |
524 | iface |= 0x0004; | |
525 | break; | |
526 | case SNDRV_PCM_FORMAT_S24_LE: | |
527 | iface |= 0x0008; | |
528 | break; | |
529 | case SNDRV_PCM_FORMAT_S32_LE: | |
530 | iface |= 0x000c; | |
531 | break; | |
532 | } | |
533 | ||
534 | /* set iface & srate */ | |
17a52fd6 | 535 | snd_soc_write(codec, WM8971_IFACE, iface); |
8bae3e23 | 536 | if (coeff >= 0) |
17a52fd6 | 537 | snd_soc_write(codec, WM8971_SRATE, srate | |
8bae3e23 KK |
538 | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
543 | static int wm8971_mute(struct snd_soc_dai *dai, int mute) | |
544 | { | |
545 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 546 | u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7; |
8bae3e23 KK |
547 | |
548 | if (mute) | |
17a52fd6 | 549 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8); |
8bae3e23 | 550 | else |
17a52fd6 | 551 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg); |
8bae3e23 KK |
552 | return 0; |
553 | } | |
554 | ||
555 | static int wm8971_set_bias_level(struct snd_soc_codec *codec, | |
556 | enum snd_soc_bias_level level) | |
557 | { | |
17a52fd6 | 558 | u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
8bae3e23 KK |
559 | |
560 | switch (level) { | |
561 | case SND_SOC_BIAS_ON: | |
562 | /* set vmid to 50k and unmute dac */ | |
17a52fd6 | 563 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); |
8bae3e23 KK |
564 | break; |
565 | case SND_SOC_BIAS_PREPARE: | |
566 | break; | |
567 | case SND_SOC_BIAS_STANDBY: | |
e46199ec AL |
568 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) |
569 | snd_soc_cache_sync(codec); | |
570 | ||
8bae3e23 | 571 | /* mute dac and set vmid to 500k, enable VREF */ |
17a52fd6 | 572 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); |
8bae3e23 KK |
573 | break; |
574 | case SND_SOC_BIAS_OFF: | |
17a52fd6 | 575 | snd_soc_write(codec, WM8971_PWR1, 0x0001); |
8bae3e23 KK |
576 | break; |
577 | } | |
ce6120cc | 578 | codec->dapm.bias_level = level; |
8bae3e23 KK |
579 | return 0; |
580 | } | |
581 | ||
582 | #define WM8971_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
583 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ | |
584 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) | |
585 | ||
586 | #define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
587 | SNDRV_PCM_FMTBIT_S24_LE) | |
588 | ||
85e7652d | 589 | static const struct snd_soc_dai_ops wm8971_dai_ops = { |
6335d055 EM |
590 | .hw_params = wm8971_pcm_hw_params, |
591 | .digital_mute = wm8971_mute, | |
592 | .set_fmt = wm8971_set_dai_fmt, | |
593 | .set_sysclk = wm8971_set_dai_sysclk, | |
594 | }; | |
595 | ||
f0fba2ad LG |
596 | static struct snd_soc_dai_driver wm8971_dai = { |
597 | .name = "wm8971-hifi", | |
8bae3e23 KK |
598 | .playback = { |
599 | .stream_name = "Playback", | |
600 | .channels_min = 1, | |
601 | .channels_max = 2, | |
602 | .rates = WM8971_RATES, | |
603 | .formats = WM8971_FORMATS,}, | |
604 | .capture = { | |
605 | .stream_name = "Capture", | |
606 | .channels_min = 1, | |
607 | .channels_max = 2, | |
608 | .rates = WM8971_RATES, | |
609 | .formats = WM8971_FORMATS,}, | |
6335d055 | 610 | .ops = &wm8971_dai_ops, |
8bae3e23 | 611 | }; |
8bae3e23 KK |
612 | |
613 | static void wm8971_work(struct work_struct *work) | |
614 | { | |
ce6120cc LG |
615 | struct snd_soc_dapm_context *dapm = |
616 | container_of(work, struct snd_soc_dapm_context, | |
617 | delayed_work.work); | |
618 | struct snd_soc_codec *codec = dapm->codec; | |
619 | wm8971_set_bias_level(codec, codec->dapm.bias_level); | |
8bae3e23 KK |
620 | } |
621 | ||
84b315ee | 622 | static int wm8971_suspend(struct snd_soc_codec *codec) |
8bae3e23 | 623 | { |
8bae3e23 KK |
624 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); |
625 | return 0; | |
626 | } | |
627 | ||
f0fba2ad | 628 | static int wm8971_resume(struct snd_soc_codec *codec) |
8bae3e23 | 629 | { |
8bae3e23 KK |
630 | u16 reg; |
631 | ||
8bae3e23 KK |
632 | wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
633 | ||
634 | /* charge wm8971 caps */ | |
ce6120cc | 635 | if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { |
17a52fd6 MB |
636 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
637 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); | |
ce6120cc LG |
638 | codec->dapm.bias_level = SND_SOC_BIAS_ON; |
639 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, | |
8bae3e23 KK |
640 | msecs_to_jiffies(1000)); |
641 | } | |
642 | ||
643 | return 0; | |
644 | } | |
645 | ||
f0fba2ad | 646 | static int wm8971_probe(struct snd_soc_codec *codec) |
8bae3e23 | 647 | { |
f0fba2ad LG |
648 | int ret = 0; |
649 | u16 reg; | |
650 | ||
bc7f610f | 651 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP); |
17a52fd6 MB |
652 | if (ret < 0) { |
653 | printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 654 | return ret; |
17a52fd6 MB |
655 | } |
656 | ||
ce6120cc | 657 | INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work); |
f0fba2ad LG |
658 | wm8971_workq = create_workqueue("wm8971"); |
659 | if (wm8971_workq == NULL) | |
660 | return -ENOMEM; | |
8bae3e23 | 661 | |
f0fba2ad | 662 | wm8971_reset(codec); |
8bae3e23 KK |
663 | |
664 | /* charge output caps - set vmid to 5k for quick power up */ | |
17a52fd6 MB |
665 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
666 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); | |
ce6120cc LG |
667 | codec->dapm.bias_level = SND_SOC_BIAS_STANDBY; |
668 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, | |
8bae3e23 KK |
669 | msecs_to_jiffies(1000)); |
670 | ||
671 | /* set the update bits */ | |
c6d43417 AL |
672 | snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100); |
673 | snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100); | |
674 | snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100); | |
675 | snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100); | |
676 | snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100); | |
677 | snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100); | |
678 | snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100); | |
679 | snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100); | |
8bae3e23 | 680 | |
8bae3e23 | 681 | return ret; |
8bae3e23 KK |
682 | } |
683 | ||
8bae3e23 | 684 | |
f0fba2ad LG |
685 | /* power down chip */ |
686 | static int wm8971_remove(struct snd_soc_codec *codec) | |
687 | { | |
688 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
689 | ||
690 | if (wm8971_workq) | |
691 | destroy_workqueue(wm8971_workq); | |
692 | return 0; | |
693 | } | |
694 | ||
695 | static struct snd_soc_codec_driver soc_codec_dev_wm8971 = { | |
696 | .probe = wm8971_probe, | |
697 | .remove = wm8971_remove, | |
698 | .suspend = wm8971_suspend, | |
699 | .resume = wm8971_resume, | |
700 | .set_bias_level = wm8971_set_bias_level, | |
c4850644 MB |
701 | |
702 | .controls = wm8971_snd_controls, | |
703 | .num_controls = ARRAY_SIZE(wm8971_snd_controls), | |
704 | .dapm_widgets = wm8971_dapm_widgets, | |
705 | .num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets), | |
706 | .dapm_routes = wm8971_dapm_routes, | |
707 | .num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes), | |
f0fba2ad | 708 | }; |
8bae3e23 | 709 | |
bc7f610f MB |
710 | static const struct regmap_config wm8971_regmap = { |
711 | .reg_bits = 7, | |
712 | .val_bits = 9, | |
713 | .max_register = WM8971_MOUTV, | |
714 | ||
715 | .reg_defaults = wm8971_reg_defaults, | |
716 | .num_reg_defaults = ARRAY_SIZE(wm8971_reg_defaults), | |
717 | .cache_type = REGCACHE_RBTREE, | |
718 | }; | |
719 | ||
7a79e94e BP |
720 | static int wm8971_i2c_probe(struct i2c_client *i2c, |
721 | const struct i2c_device_id *id) | |
8bae3e23 | 722 | { |
f0fba2ad | 723 | struct wm8971_priv *wm8971; |
bc7f610f | 724 | struct regmap *regmap; |
8bae3e23 KK |
725 | int ret; |
726 | ||
028b0a0a MB |
727 | wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv), |
728 | GFP_KERNEL); | |
f0fba2ad LG |
729 | if (wm8971 == NULL) |
730 | return -ENOMEM; | |
8bae3e23 | 731 | |
bc7f610f MB |
732 | regmap = devm_regmap_init_i2c(i2c, &wm8971_regmap); |
733 | if (IS_ERR(regmap)) | |
734 | return PTR_ERR(regmap); | |
735 | ||
f0fba2ad | 736 | i2c_set_clientdata(i2c, wm8971); |
8bae3e23 | 737 | |
f0fba2ad LG |
738 | ret = snd_soc_register_codec(&i2c->dev, |
739 | &soc_codec_dev_wm8971, &wm8971_dai, 1); | |
028b0a0a | 740 | |
8bae3e23 KK |
741 | return ret; |
742 | } | |
743 | ||
7a79e94e | 744 | static int wm8971_i2c_remove(struct i2c_client *client) |
8bae3e23 | 745 | { |
f0fba2ad | 746 | snd_soc_unregister_codec(&client->dev); |
8bae3e23 KK |
747 | return 0; |
748 | } | |
749 | ||
750 | static const struct i2c_device_id wm8971_i2c_id[] = { | |
751 | { "wm8971", 0 }, | |
752 | { } | |
753 | }; | |
754 | MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id); | |
755 | ||
756 | static struct i2c_driver wm8971_i2c_driver = { | |
757 | .driver = { | |
091edccf | 758 | .name = "wm8971", |
8bae3e23 KK |
759 | .owner = THIS_MODULE, |
760 | }, | |
f0fba2ad | 761 | .probe = wm8971_i2c_probe, |
7a79e94e | 762 | .remove = wm8971_i2c_remove, |
8bae3e23 KK |
763 | .id_table = wm8971_i2c_id, |
764 | }; | |
8bae3e23 | 765 | |
28285b96 | 766 | module_i2c_driver(wm8971_i2c_driver); |
64089b84 | 767 | |
8bae3e23 KK |
768 | MODULE_DESCRIPTION("ASoC WM8971 driver"); |
769 | MODULE_AUTHOR("Lab126"); | |
770 | MODULE_LICENSE("GPL"); |