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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> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
8bae3e23 KK |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/pcm_params.h> | |
26 | #include <sound/soc.h> | |
8bae3e23 KK |
27 | #include <sound/initval.h> |
28 | ||
29 | #include "wm8971.h" | |
30 | ||
8bae3e23 KK |
31 | #define WM8971_REG_COUNT 43 |
32 | ||
33 | static struct workqueue_struct *wm8971_workq = NULL; | |
34 | ||
35 | /* codec private data */ | |
36 | struct wm8971_priv { | |
f0fba2ad | 37 | enum snd_soc_control_type control_type; |
8bae3e23 KK |
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 | */ | |
46 | static const u16 wm8971_reg[] = { | |
47 | 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */ | |
48 | 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */ | |
49 | 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */ | |
50 | 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */ | |
51 | 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */ | |
52 | 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */ | |
53 | 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */ | |
54 | 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */ | |
55 | 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */ | |
56 | 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */ | |
57 | 0x0079, 0x0079, 0x0079, /* 40 */ | |
58 | }; | |
59 | ||
17a52fd6 | 60 | #define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0) |
8bae3e23 KK |
61 | |
62 | /* WM8971 Controls */ | |
63 | static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" }; | |
64 | static const char *wm8971_bass_filter[] = { "130Hz @ 48kHz", | |
65 | "200Hz @ 48kHz" }; | |
66 | static const char *wm8971_treble[] = { "8kHz", "4kHz" }; | |
67 | static const char *wm8971_alc_func[] = { "Off", "Right", "Left", "Stereo" }; | |
68 | static const char *wm8971_ng_type[] = { "Constant PGA Gain", | |
69 | "Mute ADC Output" }; | |
70 | static const char *wm8971_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; | |
71 | static const char *wm8971_mono_mux[] = {"Stereo", "Mono (Left)", | |
72 | "Mono (Right)", "Digital Mono"}; | |
73 | static const char *wm8971_dac_phase[] = { "Non Inverted", "Inverted" }; | |
74 | static const char *wm8971_lline_mux[] = {"Line", "NC", "NC", "PGA", | |
75 | "Differential"}; | |
76 | static const char *wm8971_rline_mux[] = {"Line", "Mic", "NC", "PGA", | |
77 | "Differential"}; | |
78 | static const char *wm8971_lpga_sel[] = {"Line", "NC", "NC", "Differential"}; | |
79 | static const char *wm8971_rpga_sel[] = {"Line", "Mic", "NC", "Differential"}; | |
80 | static const char *wm8971_adcpol[] = {"Normal", "L Invert", "R Invert", | |
81 | "L + R Invert"}; | |
82 | ||
83 | static const struct soc_enum wm8971_enum[] = { | |
84 | SOC_ENUM_SINGLE(WM8971_BASS, 7, 2, wm8971_bass), /* 0 */ | |
85 | SOC_ENUM_SINGLE(WM8971_BASS, 6, 2, wm8971_bass_filter), | |
86 | SOC_ENUM_SINGLE(WM8971_TREBLE, 6, 2, wm8971_treble), | |
87 | SOC_ENUM_SINGLE(WM8971_ALC1, 7, 4, wm8971_alc_func), | |
88 | SOC_ENUM_SINGLE(WM8971_NGATE, 1, 2, wm8971_ng_type), /* 4 */ | |
89 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 1, 4, wm8971_deemp), | |
90 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 4, 4, wm8971_mono_mux), | |
91 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 1, 2, wm8971_dac_phase), | |
92 | SOC_ENUM_SINGLE(WM8971_LOUTM1, 0, 5, wm8971_lline_mux), /* 8 */ | |
93 | SOC_ENUM_SINGLE(WM8971_ROUTM1, 0, 5, wm8971_rline_mux), | |
94 | SOC_ENUM_SINGLE(WM8971_LADCIN, 6, 4, wm8971_lpga_sel), | |
95 | SOC_ENUM_SINGLE(WM8971_RADCIN, 6, 4, wm8971_rpga_sel), | |
96 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 5, 4, wm8971_adcpol), /* 12 */ | |
97 | SOC_ENUM_SINGLE(WM8971_ADCIN, 6, 4, wm8971_mono_mux), | |
98 | }; | |
99 | ||
100 | static const struct snd_kcontrol_new wm8971_snd_controls[] = { | |
101 | SOC_DOUBLE_R("Capture Volume", WM8971_LINVOL, WM8971_RINVOL, 0, 63, 0), | |
102 | SOC_DOUBLE_R("Capture ZC Switch", WM8971_LINVOL, WM8971_RINVOL, | |
103 | 6, 1, 0), | |
104 | SOC_DOUBLE_R("Capture Switch", WM8971_LINVOL, WM8971_RINVOL, 7, 1, 1), | |
105 | ||
106 | SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8971_LOUT1V, | |
107 | WM8971_ROUT1V, 7, 1, 0), | |
108 | SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8971_LOUT2V, | |
109 | WM8971_ROUT2V, 7, 1, 0), | |
110 | SOC_SINGLE("Mono Playback ZC Switch", WM8971_MOUTV, 7, 1, 0), | |
111 | ||
112 | SOC_DOUBLE_R("PCM Volume", WM8971_LDAC, WM8971_RDAC, 0, 255, 0), | |
113 | ||
114 | SOC_DOUBLE_R("Bypass Left Playback Volume", WM8971_LOUTM1, | |
115 | WM8971_LOUTM2, 4, 7, 1), | |
116 | SOC_DOUBLE_R("Bypass Right Playback Volume", WM8971_ROUTM1, | |
117 | WM8971_ROUTM2, 4, 7, 1), | |
118 | SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8971_MOUTM1, | |
119 | WM8971_MOUTM2, 4, 7, 1), | |
120 | ||
121 | SOC_DOUBLE_R("Headphone Playback Volume", WM8971_LOUT1V, | |
122 | WM8971_ROUT1V, 0, 127, 0), | |
123 | SOC_DOUBLE_R("Speaker Playback Volume", WM8971_LOUT2V, | |
124 | WM8971_ROUT2V, 0, 127, 0), | |
125 | ||
126 | SOC_ENUM("Bass Boost", wm8971_enum[0]), | |
127 | SOC_ENUM("Bass Filter", wm8971_enum[1]), | |
128 | SOC_SINGLE("Bass Volume", WM8971_BASS, 0, 7, 1), | |
129 | ||
130 | SOC_SINGLE("Treble Volume", WM8971_TREBLE, 0, 7, 0), | |
131 | SOC_ENUM("Treble Cut-off", wm8971_enum[2]), | |
132 | ||
133 | SOC_SINGLE("Capture Filter Switch", WM8971_ADCDAC, 0, 1, 1), | |
134 | ||
135 | SOC_SINGLE("ALC Target Volume", WM8971_ALC1, 0, 7, 0), | |
136 | SOC_SINGLE("ALC Max Volume", WM8971_ALC1, 4, 7, 0), | |
137 | ||
138 | SOC_SINGLE("ALC Capture Target Volume", WM8971_ALC1, 0, 7, 0), | |
139 | SOC_SINGLE("ALC Capture Max Volume", WM8971_ALC1, 4, 7, 0), | |
140 | SOC_ENUM("ALC Capture Function", wm8971_enum[3]), | |
141 | SOC_SINGLE("ALC Capture ZC Switch", WM8971_ALC2, 7, 1, 0), | |
142 | SOC_SINGLE("ALC Capture Hold Time", WM8971_ALC2, 0, 15, 0), | |
143 | SOC_SINGLE("ALC Capture Decay Time", WM8971_ALC3, 4, 15, 0), | |
144 | SOC_SINGLE("ALC Capture Attack Time", WM8971_ALC3, 0, 15, 0), | |
145 | SOC_SINGLE("ALC Capture NG Threshold", WM8971_NGATE, 3, 31, 0), | |
146 | SOC_ENUM("ALC Capture NG Type", wm8971_enum[4]), | |
147 | SOC_SINGLE("ALC Capture NG Switch", WM8971_NGATE, 0, 1, 0), | |
148 | ||
149 | SOC_SINGLE("Capture 6dB Attenuate", WM8971_ADCDAC, 8, 1, 0), | |
150 | SOC_SINGLE("Playback 6dB Attenuate", WM8971_ADCDAC, 7, 1, 0), | |
151 | ||
152 | SOC_ENUM("Playback De-emphasis", wm8971_enum[5]), | |
153 | SOC_ENUM("Playback Function", wm8971_enum[6]), | |
154 | SOC_ENUM("Playback Phase", wm8971_enum[7]), | |
155 | ||
156 | SOC_DOUBLE_R("Mic Boost", WM8971_LADCIN, WM8971_RADCIN, 4, 3, 0), | |
157 | }; | |
158 | ||
8bae3e23 KK |
159 | /* |
160 | * DAPM Controls | |
161 | */ | |
162 | ||
163 | /* Left Mixer */ | |
164 | static const struct snd_kcontrol_new wm8971_left_mixer_controls[] = { | |
165 | SOC_DAPM_SINGLE("Playback Switch", WM8971_LOUTM1, 8, 1, 0), | |
166 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_LOUTM1, 7, 1, 0), | |
167 | SOC_DAPM_SINGLE("Right Playback Switch", WM8971_LOUTM2, 8, 1, 0), | |
168 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_LOUTM2, 7, 1, 0), | |
169 | }; | |
170 | ||
171 | /* Right Mixer */ | |
172 | static const struct snd_kcontrol_new wm8971_right_mixer_controls[] = { | |
173 | SOC_DAPM_SINGLE("Left Playback Switch", WM8971_ROUTM1, 8, 1, 0), | |
174 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_ROUTM1, 7, 1, 0), | |
175 | SOC_DAPM_SINGLE("Playback Switch", WM8971_ROUTM2, 8, 1, 0), | |
176 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_ROUTM2, 7, 1, 0), | |
177 | }; | |
178 | ||
179 | /* Mono Mixer */ | |
180 | static const struct snd_kcontrol_new wm8971_mono_mixer_controls[] = { | |
181 | SOC_DAPM_SINGLE("Left Playback Switch", WM8971_MOUTM1, 8, 1, 0), | |
182 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_MOUTM1, 7, 1, 0), | |
183 | SOC_DAPM_SINGLE("Right Playback Switch", WM8971_MOUTM2, 8, 1, 0), | |
184 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_MOUTM2, 7, 1, 0), | |
185 | }; | |
186 | ||
187 | /* Left Line Mux */ | |
188 | static const struct snd_kcontrol_new wm8971_left_line_controls = | |
189 | SOC_DAPM_ENUM("Route", wm8971_enum[8]); | |
190 | ||
191 | /* Right Line Mux */ | |
192 | static const struct snd_kcontrol_new wm8971_right_line_controls = | |
193 | SOC_DAPM_ENUM("Route", wm8971_enum[9]); | |
194 | ||
195 | /* Left PGA Mux */ | |
196 | static const struct snd_kcontrol_new wm8971_left_pga_controls = | |
197 | SOC_DAPM_ENUM("Route", wm8971_enum[10]); | |
198 | ||
199 | /* Right PGA Mux */ | |
200 | static const struct snd_kcontrol_new wm8971_right_pga_controls = | |
201 | SOC_DAPM_ENUM("Route", wm8971_enum[11]); | |
202 | ||
203 | /* Mono ADC Mux */ | |
204 | static const struct snd_kcontrol_new wm8971_monomux_controls = | |
205 | SOC_DAPM_ENUM("Route", wm8971_enum[13]); | |
206 | ||
207 | static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = { | |
208 | SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, | |
209 | &wm8971_left_mixer_controls[0], | |
210 | ARRAY_SIZE(wm8971_left_mixer_controls)), | |
211 | SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, | |
212 | &wm8971_right_mixer_controls[0], | |
213 | ARRAY_SIZE(wm8971_right_mixer_controls)), | |
214 | SND_SOC_DAPM_MIXER("Mono Mixer", WM8971_PWR2, 2, 0, | |
215 | &wm8971_mono_mixer_controls[0], | |
216 | ARRAY_SIZE(wm8971_mono_mixer_controls)), | |
217 | ||
218 | SND_SOC_DAPM_PGA("Right Out 2", WM8971_PWR2, 3, 0, NULL, 0), | |
219 | SND_SOC_DAPM_PGA("Left Out 2", WM8971_PWR2, 4, 0, NULL, 0), | |
220 | SND_SOC_DAPM_PGA("Right Out 1", WM8971_PWR2, 5, 0, NULL, 0), | |
221 | SND_SOC_DAPM_PGA("Left Out 1", WM8971_PWR2, 6, 0, NULL, 0), | |
222 | SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8971_PWR2, 7, 0), | |
223 | SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8971_PWR2, 8, 0), | |
224 | SND_SOC_DAPM_PGA("Mono Out 1", WM8971_PWR2, 2, 0, NULL, 0), | |
225 | ||
7d6f6b0f | 226 | SND_SOC_DAPM_SUPPLY("Mic Bias", WM8971_PWR1, 1, 0, NULL, 0), |
8bae3e23 KK |
227 | SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8971_PWR1, 2, 0), |
228 | SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8971_PWR1, 3, 0), | |
229 | ||
230 | SND_SOC_DAPM_MUX("Left PGA Mux", WM8971_PWR1, 5, 0, | |
231 | &wm8971_left_pga_controls), | |
232 | SND_SOC_DAPM_MUX("Right PGA Mux", WM8971_PWR1, 4, 0, | |
233 | &wm8971_right_pga_controls), | |
234 | SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, | |
235 | &wm8971_left_line_controls), | |
236 | SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, | |
237 | &wm8971_right_line_controls), | |
238 | ||
239 | SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, | |
240 | &wm8971_monomux_controls), | |
241 | SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, | |
242 | &wm8971_monomux_controls), | |
243 | ||
244 | SND_SOC_DAPM_OUTPUT("LOUT1"), | |
245 | SND_SOC_DAPM_OUTPUT("ROUT1"), | |
246 | SND_SOC_DAPM_OUTPUT("LOUT2"), | |
247 | SND_SOC_DAPM_OUTPUT("ROUT2"), | |
248 | SND_SOC_DAPM_OUTPUT("MONO"), | |
249 | ||
250 | SND_SOC_DAPM_INPUT("LINPUT1"), | |
251 | SND_SOC_DAPM_INPUT("RINPUT1"), | |
252 | SND_SOC_DAPM_INPUT("MIC"), | |
253 | }; | |
254 | ||
c4850644 | 255 | static const struct snd_soc_dapm_route wm8971_dapm_routes[] = { |
8bae3e23 KK |
256 | /* left mixer */ |
257 | {"Left Mixer", "Playback Switch", "Left DAC"}, | |
258 | {"Left Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
259 | {"Left Mixer", "Right Playback Switch", "Right DAC"}, | |
260 | {"Left Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
261 | ||
262 | /* right mixer */ | |
263 | {"Right Mixer", "Left Playback Switch", "Left DAC"}, | |
264 | {"Right Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
265 | {"Right Mixer", "Playback Switch", "Right DAC"}, | |
266 | {"Right Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
267 | ||
268 | /* left out 1 */ | |
269 | {"Left Out 1", NULL, "Left Mixer"}, | |
270 | {"LOUT1", NULL, "Left Out 1"}, | |
271 | ||
272 | /* left out 2 */ | |
273 | {"Left Out 2", NULL, "Left Mixer"}, | |
274 | {"LOUT2", NULL, "Left Out 2"}, | |
275 | ||
276 | /* right out 1 */ | |
277 | {"Right Out 1", NULL, "Right Mixer"}, | |
278 | {"ROUT1", NULL, "Right Out 1"}, | |
279 | ||
280 | /* right out 2 */ | |
281 | {"Right Out 2", NULL, "Right Mixer"}, | |
282 | {"ROUT2", NULL, "Right Out 2"}, | |
283 | ||
284 | /* mono mixer */ | |
285 | {"Mono Mixer", "Left Playback Switch", "Left DAC"}, | |
286 | {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
287 | {"Mono Mixer", "Right Playback Switch", "Right DAC"}, | |
288 | {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
289 | ||
290 | /* mono out */ | |
291 | {"Mono Out", NULL, "Mono Mixer"}, | |
292 | {"MONO1", NULL, "Mono Out"}, | |
293 | ||
294 | /* Left Line Mux */ | |
295 | {"Left Line Mux", "Line", "LINPUT1"}, | |
296 | {"Left Line Mux", "PGA", "Left PGA Mux"}, | |
297 | {"Left Line Mux", "Differential", "Differential Mux"}, | |
298 | ||
299 | /* Right Line Mux */ | |
300 | {"Right Line Mux", "Line", "RINPUT1"}, | |
301 | {"Right Line Mux", "Mic", "MIC"}, | |
302 | {"Right Line Mux", "PGA", "Right PGA Mux"}, | |
303 | {"Right Line Mux", "Differential", "Differential Mux"}, | |
304 | ||
305 | /* Left PGA Mux */ | |
306 | {"Left PGA Mux", "Line", "LINPUT1"}, | |
307 | {"Left PGA Mux", "Differential", "Differential Mux"}, | |
308 | ||
309 | /* Right PGA Mux */ | |
310 | {"Right PGA Mux", "Line", "RINPUT1"}, | |
311 | {"Right PGA Mux", "Differential", "Differential Mux"}, | |
312 | ||
313 | /* Differential Mux */ | |
314 | {"Differential Mux", "Line", "LINPUT1"}, | |
315 | {"Differential Mux", "Line", "RINPUT1"}, | |
316 | ||
317 | /* Left ADC Mux */ | |
318 | {"Left ADC Mux", "Stereo", "Left PGA Mux"}, | |
319 | {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"}, | |
320 | {"Left ADC Mux", "Digital Mono", "Left PGA Mux"}, | |
321 | ||
322 | /* Right ADC Mux */ | |
323 | {"Right ADC Mux", "Stereo", "Right PGA Mux"}, | |
324 | {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"}, | |
325 | {"Right ADC Mux", "Digital Mono", "Right PGA Mux"}, | |
326 | ||
327 | /* ADC */ | |
328 | {"Left ADC", NULL, "Left ADC Mux"}, | |
329 | {"Right ADC", NULL, "Right ADC Mux"}, | |
330 | }; | |
331 | ||
8bae3e23 KK |
332 | struct _coeff_div { |
333 | u32 mclk; | |
334 | u32 rate; | |
335 | u16 fs; | |
336 | u8 sr:5; | |
337 | u8 usb:1; | |
338 | }; | |
339 | ||
340 | /* codec hifi mclk clock divider coefficients */ | |
341 | static const struct _coeff_div coeff_div[] = { | |
342 | /* 8k */ | |
343 | {12288000, 8000, 1536, 0x6, 0x0}, | |
344 | {11289600, 8000, 1408, 0x16, 0x0}, | |
345 | {18432000, 8000, 2304, 0x7, 0x0}, | |
346 | {16934400, 8000, 2112, 0x17, 0x0}, | |
347 | {12000000, 8000, 1500, 0x6, 0x1}, | |
348 | ||
349 | /* 11.025k */ | |
350 | {11289600, 11025, 1024, 0x18, 0x0}, | |
351 | {16934400, 11025, 1536, 0x19, 0x0}, | |
352 | {12000000, 11025, 1088, 0x19, 0x1}, | |
353 | ||
354 | /* 16k */ | |
355 | {12288000, 16000, 768, 0xa, 0x0}, | |
356 | {18432000, 16000, 1152, 0xb, 0x0}, | |
357 | {12000000, 16000, 750, 0xa, 0x1}, | |
358 | ||
359 | /* 22.05k */ | |
360 | {11289600, 22050, 512, 0x1a, 0x0}, | |
361 | {16934400, 22050, 768, 0x1b, 0x0}, | |
362 | {12000000, 22050, 544, 0x1b, 0x1}, | |
363 | ||
364 | /* 32k */ | |
365 | {12288000, 32000, 384, 0xc, 0x0}, | |
366 | {18432000, 32000, 576, 0xd, 0x0}, | |
367 | {12000000, 32000, 375, 0xa, 0x1}, | |
368 | ||
369 | /* 44.1k */ | |
370 | {11289600, 44100, 256, 0x10, 0x0}, | |
371 | {16934400, 44100, 384, 0x11, 0x0}, | |
372 | {12000000, 44100, 272, 0x11, 0x1}, | |
373 | ||
374 | /* 48k */ | |
375 | {12288000, 48000, 256, 0x0, 0x0}, | |
376 | {18432000, 48000, 384, 0x1, 0x0}, | |
377 | {12000000, 48000, 250, 0x0, 0x1}, | |
378 | ||
379 | /* 88.2k */ | |
380 | {11289600, 88200, 128, 0x1e, 0x0}, | |
381 | {16934400, 88200, 192, 0x1f, 0x0}, | |
382 | {12000000, 88200, 136, 0x1f, 0x1}, | |
383 | ||
384 | /* 96k */ | |
385 | {12288000, 96000, 128, 0xe, 0x0}, | |
386 | {18432000, 96000, 192, 0xf, 0x0}, | |
387 | {12000000, 96000, 125, 0xe, 0x1}, | |
388 | }; | |
389 | ||
390 | static int get_coeff(int mclk, int rate) | |
391 | { | |
392 | int i; | |
393 | ||
394 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
395 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
396 | return i; | |
397 | } | |
398 | return -EINVAL; | |
399 | } | |
400 | ||
401 | static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
402 | int clk_id, unsigned int freq, int dir) | |
403 | { | |
404 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 405 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
8bae3e23 KK |
406 | |
407 | switch (freq) { | |
408 | case 11289600: | |
409 | case 12000000: | |
410 | case 12288000: | |
411 | case 16934400: | |
412 | case 18432000: | |
413 | wm8971->sysclk = freq; | |
414 | return 0; | |
415 | } | |
416 | return -EINVAL; | |
417 | } | |
418 | ||
419 | static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
420 | unsigned int fmt) | |
421 | { | |
422 | struct snd_soc_codec *codec = codec_dai->codec; | |
423 | u16 iface = 0; | |
424 | ||
425 | /* set master/slave audio interface */ | |
426 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
427 | case SND_SOC_DAIFMT_CBM_CFM: | |
428 | iface = 0x0040; | |
429 | break; | |
430 | case SND_SOC_DAIFMT_CBS_CFS: | |
431 | break; | |
432 | default: | |
433 | return -EINVAL; | |
434 | } | |
435 | ||
436 | /* interface format */ | |
437 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
438 | case SND_SOC_DAIFMT_I2S: | |
439 | iface |= 0x0002; | |
440 | break; | |
441 | case SND_SOC_DAIFMT_RIGHT_J: | |
442 | break; | |
443 | case SND_SOC_DAIFMT_LEFT_J: | |
444 | iface |= 0x0001; | |
445 | break; | |
446 | case SND_SOC_DAIFMT_DSP_A: | |
447 | iface |= 0x0003; | |
448 | break; | |
449 | case SND_SOC_DAIFMT_DSP_B: | |
450 | iface |= 0x0013; | |
451 | break; | |
452 | default: | |
453 | return -EINVAL; | |
454 | } | |
455 | ||
456 | /* clock inversion */ | |
457 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
458 | case SND_SOC_DAIFMT_NB_NF: | |
459 | break; | |
460 | case SND_SOC_DAIFMT_IB_IF: | |
461 | iface |= 0x0090; | |
462 | break; | |
463 | case SND_SOC_DAIFMT_IB_NF: | |
464 | iface |= 0x0080; | |
465 | break; | |
466 | case SND_SOC_DAIFMT_NB_IF: | |
467 | iface |= 0x0010; | |
468 | break; | |
469 | default: | |
470 | return -EINVAL; | |
471 | } | |
472 | ||
17a52fd6 | 473 | snd_soc_write(codec, WM8971_IFACE, iface); |
8bae3e23 KK |
474 | return 0; |
475 | } | |
476 | ||
477 | static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
478 | struct snd_pcm_hw_params *params, |
479 | struct snd_soc_dai *dai) | |
8bae3e23 KK |
480 | { |
481 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 482 | struct snd_soc_codec *codec = rtd->codec; |
b2c812e2 | 483 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 MB |
484 | u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3; |
485 | u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0; | |
8bae3e23 KK |
486 | int coeff = get_coeff(wm8971->sysclk, params_rate(params)); |
487 | ||
488 | /* bit size */ | |
489 | switch (params_format(params)) { | |
490 | case SNDRV_PCM_FORMAT_S16_LE: | |
491 | break; | |
492 | case SNDRV_PCM_FORMAT_S20_3LE: | |
493 | iface |= 0x0004; | |
494 | break; | |
495 | case SNDRV_PCM_FORMAT_S24_LE: | |
496 | iface |= 0x0008; | |
497 | break; | |
498 | case SNDRV_PCM_FORMAT_S32_LE: | |
499 | iface |= 0x000c; | |
500 | break; | |
501 | } | |
502 | ||
503 | /* set iface & srate */ | |
17a52fd6 | 504 | snd_soc_write(codec, WM8971_IFACE, iface); |
8bae3e23 | 505 | if (coeff >= 0) |
17a52fd6 | 506 | snd_soc_write(codec, WM8971_SRATE, srate | |
8bae3e23 KK |
507 | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); |
508 | ||
509 | return 0; | |
510 | } | |
511 | ||
512 | static int wm8971_mute(struct snd_soc_dai *dai, int mute) | |
513 | { | |
514 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 515 | u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7; |
8bae3e23 KK |
516 | |
517 | if (mute) | |
17a52fd6 | 518 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8); |
8bae3e23 | 519 | else |
17a52fd6 | 520 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg); |
8bae3e23 KK |
521 | return 0; |
522 | } | |
523 | ||
524 | static int wm8971_set_bias_level(struct snd_soc_codec *codec, | |
525 | enum snd_soc_bias_level level) | |
526 | { | |
17a52fd6 | 527 | u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
8bae3e23 KK |
528 | |
529 | switch (level) { | |
530 | case SND_SOC_BIAS_ON: | |
531 | /* set vmid to 50k and unmute dac */ | |
17a52fd6 | 532 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); |
8bae3e23 KK |
533 | break; |
534 | case SND_SOC_BIAS_PREPARE: | |
535 | break; | |
536 | case SND_SOC_BIAS_STANDBY: | |
e46199ec AL |
537 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) |
538 | snd_soc_cache_sync(codec); | |
539 | ||
8bae3e23 | 540 | /* mute dac and set vmid to 500k, enable VREF */ |
17a52fd6 | 541 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); |
8bae3e23 KK |
542 | break; |
543 | case SND_SOC_BIAS_OFF: | |
17a52fd6 | 544 | snd_soc_write(codec, WM8971_PWR1, 0x0001); |
8bae3e23 KK |
545 | break; |
546 | } | |
ce6120cc | 547 | codec->dapm.bias_level = level; |
8bae3e23 KK |
548 | return 0; |
549 | } | |
550 | ||
551 | #define WM8971_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
552 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ | |
553 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) | |
554 | ||
555 | #define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
556 | SNDRV_PCM_FMTBIT_S24_LE) | |
557 | ||
85e7652d | 558 | static const struct snd_soc_dai_ops wm8971_dai_ops = { |
6335d055 EM |
559 | .hw_params = wm8971_pcm_hw_params, |
560 | .digital_mute = wm8971_mute, | |
561 | .set_fmt = wm8971_set_dai_fmt, | |
562 | .set_sysclk = wm8971_set_dai_sysclk, | |
563 | }; | |
564 | ||
f0fba2ad LG |
565 | static struct snd_soc_dai_driver wm8971_dai = { |
566 | .name = "wm8971-hifi", | |
8bae3e23 KK |
567 | .playback = { |
568 | .stream_name = "Playback", | |
569 | .channels_min = 1, | |
570 | .channels_max = 2, | |
571 | .rates = WM8971_RATES, | |
572 | .formats = WM8971_FORMATS,}, | |
573 | .capture = { | |
574 | .stream_name = "Capture", | |
575 | .channels_min = 1, | |
576 | .channels_max = 2, | |
577 | .rates = WM8971_RATES, | |
578 | .formats = WM8971_FORMATS,}, | |
6335d055 | 579 | .ops = &wm8971_dai_ops, |
8bae3e23 | 580 | }; |
8bae3e23 KK |
581 | |
582 | static void wm8971_work(struct work_struct *work) | |
583 | { | |
ce6120cc LG |
584 | struct snd_soc_dapm_context *dapm = |
585 | container_of(work, struct snd_soc_dapm_context, | |
586 | delayed_work.work); | |
587 | struct snd_soc_codec *codec = dapm->codec; | |
588 | wm8971_set_bias_level(codec, codec->dapm.bias_level); | |
8bae3e23 KK |
589 | } |
590 | ||
84b315ee | 591 | static int wm8971_suspend(struct snd_soc_codec *codec) |
8bae3e23 | 592 | { |
8bae3e23 KK |
593 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); |
594 | return 0; | |
595 | } | |
596 | ||
f0fba2ad | 597 | static int wm8971_resume(struct snd_soc_codec *codec) |
8bae3e23 | 598 | { |
8bae3e23 KK |
599 | u16 reg; |
600 | ||
8bae3e23 KK |
601 | wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
602 | ||
603 | /* charge wm8971 caps */ | |
ce6120cc | 604 | if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { |
17a52fd6 MB |
605 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
606 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); | |
ce6120cc LG |
607 | codec->dapm.bias_level = SND_SOC_BIAS_ON; |
608 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, | |
8bae3e23 KK |
609 | msecs_to_jiffies(1000)); |
610 | } | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
f0fba2ad | 615 | static int wm8971_probe(struct snd_soc_codec *codec) |
8bae3e23 | 616 | { |
f0fba2ad LG |
617 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
618 | int ret = 0; | |
619 | u16 reg; | |
620 | ||
f0fba2ad | 621 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8971->control_type); |
17a52fd6 MB |
622 | if (ret < 0) { |
623 | printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 624 | return ret; |
17a52fd6 MB |
625 | } |
626 | ||
ce6120cc | 627 | INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work); |
f0fba2ad LG |
628 | wm8971_workq = create_workqueue("wm8971"); |
629 | if (wm8971_workq == NULL) | |
630 | return -ENOMEM; | |
8bae3e23 | 631 | |
f0fba2ad | 632 | wm8971_reset(codec); |
8bae3e23 KK |
633 | |
634 | /* charge output caps - set vmid to 5k for quick power up */ | |
17a52fd6 MB |
635 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
636 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); | |
ce6120cc LG |
637 | codec->dapm.bias_level = SND_SOC_BIAS_STANDBY; |
638 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, | |
8bae3e23 KK |
639 | msecs_to_jiffies(1000)); |
640 | ||
641 | /* set the update bits */ | |
c6d43417 AL |
642 | snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100); |
643 | snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100); | |
644 | snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100); | |
645 | snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100); | |
646 | snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100); | |
647 | snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100); | |
648 | snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100); | |
649 | snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100); | |
8bae3e23 | 650 | |
8bae3e23 | 651 | return ret; |
8bae3e23 KK |
652 | } |
653 | ||
8bae3e23 | 654 | |
f0fba2ad LG |
655 | /* power down chip */ |
656 | static int wm8971_remove(struct snd_soc_codec *codec) | |
657 | { | |
658 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
659 | ||
660 | if (wm8971_workq) | |
661 | destroy_workqueue(wm8971_workq); | |
662 | return 0; | |
663 | } | |
664 | ||
665 | static struct snd_soc_codec_driver soc_codec_dev_wm8971 = { | |
666 | .probe = wm8971_probe, | |
667 | .remove = wm8971_remove, | |
668 | .suspend = wm8971_suspend, | |
669 | .resume = wm8971_resume, | |
670 | .set_bias_level = wm8971_set_bias_level, | |
671 | .reg_cache_size = ARRAY_SIZE(wm8971_reg), | |
672 | .reg_word_size = sizeof(u16), | |
673 | .reg_cache_default = wm8971_reg, | |
c4850644 MB |
674 | |
675 | .controls = wm8971_snd_controls, | |
676 | .num_controls = ARRAY_SIZE(wm8971_snd_controls), | |
677 | .dapm_widgets = wm8971_dapm_widgets, | |
678 | .num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets), | |
679 | .dapm_routes = wm8971_dapm_routes, | |
680 | .num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes), | |
f0fba2ad | 681 | }; |
8bae3e23 | 682 | |
f0fba2ad LG |
683 | static __devinit int wm8971_i2c_probe(struct i2c_client *i2c, |
684 | const struct i2c_device_id *id) | |
8bae3e23 | 685 | { |
f0fba2ad | 686 | struct wm8971_priv *wm8971; |
8bae3e23 KK |
687 | int ret; |
688 | ||
028b0a0a MB |
689 | wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv), |
690 | GFP_KERNEL); | |
f0fba2ad LG |
691 | if (wm8971 == NULL) |
692 | return -ENOMEM; | |
8bae3e23 | 693 | |
7f984b55 | 694 | wm8971->control_type = SND_SOC_I2C; |
f0fba2ad | 695 | i2c_set_clientdata(i2c, wm8971); |
8bae3e23 | 696 | |
f0fba2ad LG |
697 | ret = snd_soc_register_codec(&i2c->dev, |
698 | &soc_codec_dev_wm8971, &wm8971_dai, 1); | |
028b0a0a | 699 | |
8bae3e23 KK |
700 | return ret; |
701 | } | |
702 | ||
f0fba2ad | 703 | static __devexit int wm8971_i2c_remove(struct i2c_client *client) |
8bae3e23 | 704 | { |
f0fba2ad | 705 | snd_soc_unregister_codec(&client->dev); |
8bae3e23 KK |
706 | return 0; |
707 | } | |
708 | ||
709 | static const struct i2c_device_id wm8971_i2c_id[] = { | |
710 | { "wm8971", 0 }, | |
711 | { } | |
712 | }; | |
713 | MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id); | |
714 | ||
715 | static struct i2c_driver wm8971_i2c_driver = { | |
716 | .driver = { | |
091edccf | 717 | .name = "wm8971", |
8bae3e23 KK |
718 | .owner = THIS_MODULE, |
719 | }, | |
f0fba2ad LG |
720 | .probe = wm8971_i2c_probe, |
721 | .remove = __devexit_p(wm8971_i2c_remove), | |
8bae3e23 KK |
722 | .id_table = wm8971_i2c_id, |
723 | }; | |
8bae3e23 | 724 | |
f0fba2ad | 725 | static int __init wm8971_modinit(void) |
8bae3e23 | 726 | { |
8bae3e23 | 727 | int ret = 0; |
f0fba2ad | 728 | ret = i2c_add_driver(&wm8971_i2c_driver); |
8bae3e23 | 729 | if (ret != 0) { |
f0fba2ad LG |
730 | printk(KERN_ERR "Failed to register WM8971 I2C driver: %d\n", |
731 | ret); | |
8bae3e23 | 732 | } |
f0fba2ad | 733 | return ret; |
64089b84 MB |
734 | } |
735 | module_init(wm8971_modinit); | |
736 | ||
737 | static void __exit wm8971_exit(void) | |
738 | { | |
f0fba2ad | 739 | i2c_del_driver(&wm8971_i2c_driver); |
64089b84 MB |
740 | } |
741 | module_exit(wm8971_exit); | |
742 | ||
8bae3e23 KK |
743 | MODULE_DESCRIPTION("ASoC WM8971 driver"); |
744 | MODULE_AUTHOR("Lab126"); | |
745 | MODULE_LICENSE("GPL"); |