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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 | ||
255 | static const struct snd_soc_dapm_route audio_map[] = { | |
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 | ||
332 | static int wm8971_add_widgets(struct snd_soc_codec *codec) | |
333 | { | |
ce6120cc | 334 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
8bae3e23 | 335 | |
ce6120cc LG |
336 | snd_soc_dapm_new_controls(dapm, wm8971_dapm_widgets, |
337 | ARRAY_SIZE(wm8971_dapm_widgets)); | |
338 | snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); | |
8bae3e23 | 339 | |
8bae3e23 KK |
340 | return 0; |
341 | } | |
342 | ||
343 | struct _coeff_div { | |
344 | u32 mclk; | |
345 | u32 rate; | |
346 | u16 fs; | |
347 | u8 sr:5; | |
348 | u8 usb:1; | |
349 | }; | |
350 | ||
351 | /* codec hifi mclk clock divider coefficients */ | |
352 | static const struct _coeff_div coeff_div[] = { | |
353 | /* 8k */ | |
354 | {12288000, 8000, 1536, 0x6, 0x0}, | |
355 | {11289600, 8000, 1408, 0x16, 0x0}, | |
356 | {18432000, 8000, 2304, 0x7, 0x0}, | |
357 | {16934400, 8000, 2112, 0x17, 0x0}, | |
358 | {12000000, 8000, 1500, 0x6, 0x1}, | |
359 | ||
360 | /* 11.025k */ | |
361 | {11289600, 11025, 1024, 0x18, 0x0}, | |
362 | {16934400, 11025, 1536, 0x19, 0x0}, | |
363 | {12000000, 11025, 1088, 0x19, 0x1}, | |
364 | ||
365 | /* 16k */ | |
366 | {12288000, 16000, 768, 0xa, 0x0}, | |
367 | {18432000, 16000, 1152, 0xb, 0x0}, | |
368 | {12000000, 16000, 750, 0xa, 0x1}, | |
369 | ||
370 | /* 22.05k */ | |
371 | {11289600, 22050, 512, 0x1a, 0x0}, | |
372 | {16934400, 22050, 768, 0x1b, 0x0}, | |
373 | {12000000, 22050, 544, 0x1b, 0x1}, | |
374 | ||
375 | /* 32k */ | |
376 | {12288000, 32000, 384, 0xc, 0x0}, | |
377 | {18432000, 32000, 576, 0xd, 0x0}, | |
378 | {12000000, 32000, 375, 0xa, 0x1}, | |
379 | ||
380 | /* 44.1k */ | |
381 | {11289600, 44100, 256, 0x10, 0x0}, | |
382 | {16934400, 44100, 384, 0x11, 0x0}, | |
383 | {12000000, 44100, 272, 0x11, 0x1}, | |
384 | ||
385 | /* 48k */ | |
386 | {12288000, 48000, 256, 0x0, 0x0}, | |
387 | {18432000, 48000, 384, 0x1, 0x0}, | |
388 | {12000000, 48000, 250, 0x0, 0x1}, | |
389 | ||
390 | /* 88.2k */ | |
391 | {11289600, 88200, 128, 0x1e, 0x0}, | |
392 | {16934400, 88200, 192, 0x1f, 0x0}, | |
393 | {12000000, 88200, 136, 0x1f, 0x1}, | |
394 | ||
395 | /* 96k */ | |
396 | {12288000, 96000, 128, 0xe, 0x0}, | |
397 | {18432000, 96000, 192, 0xf, 0x0}, | |
398 | {12000000, 96000, 125, 0xe, 0x1}, | |
399 | }; | |
400 | ||
401 | static int get_coeff(int mclk, int rate) | |
402 | { | |
403 | int i; | |
404 | ||
405 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
406 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
407 | return i; | |
408 | } | |
409 | return -EINVAL; | |
410 | } | |
411 | ||
412 | static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
413 | int clk_id, unsigned int freq, int dir) | |
414 | { | |
415 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 416 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
8bae3e23 KK |
417 | |
418 | switch (freq) { | |
419 | case 11289600: | |
420 | case 12000000: | |
421 | case 12288000: | |
422 | case 16934400: | |
423 | case 18432000: | |
424 | wm8971->sysclk = freq; | |
425 | return 0; | |
426 | } | |
427 | return -EINVAL; | |
428 | } | |
429 | ||
430 | static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
431 | unsigned int fmt) | |
432 | { | |
433 | struct snd_soc_codec *codec = codec_dai->codec; | |
434 | u16 iface = 0; | |
435 | ||
436 | /* set master/slave audio interface */ | |
437 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
438 | case SND_SOC_DAIFMT_CBM_CFM: | |
439 | iface = 0x0040; | |
440 | break; | |
441 | case SND_SOC_DAIFMT_CBS_CFS: | |
442 | break; | |
443 | default: | |
444 | return -EINVAL; | |
445 | } | |
446 | ||
447 | /* interface format */ | |
448 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
449 | case SND_SOC_DAIFMT_I2S: | |
450 | iface |= 0x0002; | |
451 | break; | |
452 | case SND_SOC_DAIFMT_RIGHT_J: | |
453 | break; | |
454 | case SND_SOC_DAIFMT_LEFT_J: | |
455 | iface |= 0x0001; | |
456 | break; | |
457 | case SND_SOC_DAIFMT_DSP_A: | |
458 | iface |= 0x0003; | |
459 | break; | |
460 | case SND_SOC_DAIFMT_DSP_B: | |
461 | iface |= 0x0013; | |
462 | break; | |
463 | default: | |
464 | return -EINVAL; | |
465 | } | |
466 | ||
467 | /* clock inversion */ | |
468 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
469 | case SND_SOC_DAIFMT_NB_NF: | |
470 | break; | |
471 | case SND_SOC_DAIFMT_IB_IF: | |
472 | iface |= 0x0090; | |
473 | break; | |
474 | case SND_SOC_DAIFMT_IB_NF: | |
475 | iface |= 0x0080; | |
476 | break; | |
477 | case SND_SOC_DAIFMT_NB_IF: | |
478 | iface |= 0x0010; | |
479 | break; | |
480 | default: | |
481 | return -EINVAL; | |
482 | } | |
483 | ||
17a52fd6 | 484 | snd_soc_write(codec, WM8971_IFACE, iface); |
8bae3e23 KK |
485 | return 0; |
486 | } | |
487 | ||
488 | static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
489 | struct snd_pcm_hw_params *params, |
490 | struct snd_soc_dai *dai) | |
8bae3e23 KK |
491 | { |
492 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 493 | struct snd_soc_codec *codec = rtd->codec; |
b2c812e2 | 494 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 MB |
495 | u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3; |
496 | u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0; | |
8bae3e23 KK |
497 | int coeff = get_coeff(wm8971->sysclk, params_rate(params)); |
498 | ||
499 | /* bit size */ | |
500 | switch (params_format(params)) { | |
501 | case SNDRV_PCM_FORMAT_S16_LE: | |
502 | break; | |
503 | case SNDRV_PCM_FORMAT_S20_3LE: | |
504 | iface |= 0x0004; | |
505 | break; | |
506 | case SNDRV_PCM_FORMAT_S24_LE: | |
507 | iface |= 0x0008; | |
508 | break; | |
509 | case SNDRV_PCM_FORMAT_S32_LE: | |
510 | iface |= 0x000c; | |
511 | break; | |
512 | } | |
513 | ||
514 | /* set iface & srate */ | |
17a52fd6 | 515 | snd_soc_write(codec, WM8971_IFACE, iface); |
8bae3e23 | 516 | if (coeff >= 0) |
17a52fd6 | 517 | snd_soc_write(codec, WM8971_SRATE, srate | |
8bae3e23 KK |
518 | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); |
519 | ||
520 | return 0; | |
521 | } | |
522 | ||
523 | static int wm8971_mute(struct snd_soc_dai *dai, int mute) | |
524 | { | |
525 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 526 | u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7; |
8bae3e23 KK |
527 | |
528 | if (mute) | |
17a52fd6 | 529 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8); |
8bae3e23 | 530 | else |
17a52fd6 | 531 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg); |
8bae3e23 KK |
532 | return 0; |
533 | } | |
534 | ||
535 | static int wm8971_set_bias_level(struct snd_soc_codec *codec, | |
536 | enum snd_soc_bias_level level) | |
537 | { | |
17a52fd6 | 538 | u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
8bae3e23 KK |
539 | |
540 | switch (level) { | |
541 | case SND_SOC_BIAS_ON: | |
542 | /* set vmid to 50k and unmute dac */ | |
17a52fd6 | 543 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); |
8bae3e23 KK |
544 | break; |
545 | case SND_SOC_BIAS_PREPARE: | |
546 | break; | |
547 | case SND_SOC_BIAS_STANDBY: | |
e46199ec AL |
548 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) |
549 | snd_soc_cache_sync(codec); | |
550 | ||
8bae3e23 | 551 | /* mute dac and set vmid to 500k, enable VREF */ |
17a52fd6 | 552 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); |
8bae3e23 KK |
553 | break; |
554 | case SND_SOC_BIAS_OFF: | |
17a52fd6 | 555 | snd_soc_write(codec, WM8971_PWR1, 0x0001); |
8bae3e23 KK |
556 | break; |
557 | } | |
ce6120cc | 558 | codec->dapm.bias_level = level; |
8bae3e23 KK |
559 | return 0; |
560 | } | |
561 | ||
562 | #define WM8971_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
563 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ | |
564 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) | |
565 | ||
566 | #define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
567 | SNDRV_PCM_FMTBIT_S24_LE) | |
568 | ||
85e7652d | 569 | static const struct snd_soc_dai_ops wm8971_dai_ops = { |
6335d055 EM |
570 | .hw_params = wm8971_pcm_hw_params, |
571 | .digital_mute = wm8971_mute, | |
572 | .set_fmt = wm8971_set_dai_fmt, | |
573 | .set_sysclk = wm8971_set_dai_sysclk, | |
574 | }; | |
575 | ||
f0fba2ad LG |
576 | static struct snd_soc_dai_driver wm8971_dai = { |
577 | .name = "wm8971-hifi", | |
8bae3e23 KK |
578 | .playback = { |
579 | .stream_name = "Playback", | |
580 | .channels_min = 1, | |
581 | .channels_max = 2, | |
582 | .rates = WM8971_RATES, | |
583 | .formats = WM8971_FORMATS,}, | |
584 | .capture = { | |
585 | .stream_name = "Capture", | |
586 | .channels_min = 1, | |
587 | .channels_max = 2, | |
588 | .rates = WM8971_RATES, | |
589 | .formats = WM8971_FORMATS,}, | |
6335d055 | 590 | .ops = &wm8971_dai_ops, |
8bae3e23 | 591 | }; |
8bae3e23 KK |
592 | |
593 | static void wm8971_work(struct work_struct *work) | |
594 | { | |
ce6120cc LG |
595 | struct snd_soc_dapm_context *dapm = |
596 | container_of(work, struct snd_soc_dapm_context, | |
597 | delayed_work.work); | |
598 | struct snd_soc_codec *codec = dapm->codec; | |
599 | wm8971_set_bias_level(codec, codec->dapm.bias_level); | |
8bae3e23 KK |
600 | } |
601 | ||
84b315ee | 602 | static int wm8971_suspend(struct snd_soc_codec *codec) |
8bae3e23 | 603 | { |
8bae3e23 KK |
604 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); |
605 | return 0; | |
606 | } | |
607 | ||
f0fba2ad | 608 | static int wm8971_resume(struct snd_soc_codec *codec) |
8bae3e23 | 609 | { |
8bae3e23 KK |
610 | u16 reg; |
611 | ||
8bae3e23 KK |
612 | wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
613 | ||
614 | /* charge wm8971 caps */ | |
ce6120cc | 615 | if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { |
17a52fd6 MB |
616 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
617 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); | |
ce6120cc LG |
618 | codec->dapm.bias_level = SND_SOC_BIAS_ON; |
619 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, | |
8bae3e23 KK |
620 | msecs_to_jiffies(1000)); |
621 | } | |
622 | ||
623 | return 0; | |
624 | } | |
625 | ||
f0fba2ad | 626 | static int wm8971_probe(struct snd_soc_codec *codec) |
8bae3e23 | 627 | { |
f0fba2ad LG |
628 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); |
629 | int ret = 0; | |
630 | u16 reg; | |
631 | ||
f0fba2ad | 632 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8971->control_type); |
17a52fd6 MB |
633 | if (ret < 0) { |
634 | printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 635 | return ret; |
17a52fd6 MB |
636 | } |
637 | ||
ce6120cc | 638 | INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work); |
f0fba2ad LG |
639 | wm8971_workq = create_workqueue("wm8971"); |
640 | if (wm8971_workq == NULL) | |
641 | return -ENOMEM; | |
8bae3e23 | 642 | |
f0fba2ad | 643 | wm8971_reset(codec); |
8bae3e23 KK |
644 | |
645 | /* charge output caps - set vmid to 5k for quick power up */ | |
17a52fd6 MB |
646 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; |
647 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); | |
ce6120cc LG |
648 | codec->dapm.bias_level = SND_SOC_BIAS_STANDBY; |
649 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, | |
8bae3e23 KK |
650 | msecs_to_jiffies(1000)); |
651 | ||
652 | /* set the update bits */ | |
c6d43417 AL |
653 | snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100); |
654 | snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100); | |
655 | snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100); | |
656 | snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100); | |
657 | snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100); | |
658 | snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100); | |
659 | snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100); | |
660 | snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100); | |
8bae3e23 | 661 | |
3e8e1952 IM |
662 | snd_soc_add_controls(codec, wm8971_snd_controls, |
663 | ARRAY_SIZE(wm8971_snd_controls)); | |
8bae3e23 | 664 | wm8971_add_widgets(codec); |
fe3e78e0 | 665 | |
8bae3e23 | 666 | return ret; |
8bae3e23 KK |
667 | } |
668 | ||
8bae3e23 | 669 | |
f0fba2ad LG |
670 | /* power down chip */ |
671 | static int wm8971_remove(struct snd_soc_codec *codec) | |
672 | { | |
673 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
674 | ||
675 | if (wm8971_workq) | |
676 | destroy_workqueue(wm8971_workq); | |
677 | return 0; | |
678 | } | |
679 | ||
680 | static struct snd_soc_codec_driver soc_codec_dev_wm8971 = { | |
681 | .probe = wm8971_probe, | |
682 | .remove = wm8971_remove, | |
683 | .suspend = wm8971_suspend, | |
684 | .resume = wm8971_resume, | |
685 | .set_bias_level = wm8971_set_bias_level, | |
686 | .reg_cache_size = ARRAY_SIZE(wm8971_reg), | |
687 | .reg_word_size = sizeof(u16), | |
688 | .reg_cache_default = wm8971_reg, | |
689 | }; | |
8bae3e23 | 690 | |
f0fba2ad LG |
691 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
692 | static __devinit int wm8971_i2c_probe(struct i2c_client *i2c, | |
693 | const struct i2c_device_id *id) | |
8bae3e23 | 694 | { |
f0fba2ad | 695 | struct wm8971_priv *wm8971; |
8bae3e23 KK |
696 | int ret; |
697 | ||
f0fba2ad LG |
698 | wm8971 = kzalloc(sizeof(struct wm8971_priv), GFP_KERNEL); |
699 | if (wm8971 == NULL) | |
700 | return -ENOMEM; | |
8bae3e23 | 701 | |
7f984b55 | 702 | wm8971->control_type = SND_SOC_I2C; |
f0fba2ad | 703 | i2c_set_clientdata(i2c, wm8971); |
8bae3e23 | 704 | |
f0fba2ad LG |
705 | ret = snd_soc_register_codec(&i2c->dev, |
706 | &soc_codec_dev_wm8971, &wm8971_dai, 1); | |
8bae3e23 | 707 | if (ret < 0) |
f0fba2ad | 708 | kfree(wm8971); |
8bae3e23 KK |
709 | return ret; |
710 | } | |
711 | ||
f0fba2ad | 712 | static __devexit int wm8971_i2c_remove(struct i2c_client *client) |
8bae3e23 | 713 | { |
f0fba2ad LG |
714 | snd_soc_unregister_codec(&client->dev); |
715 | kfree(i2c_get_clientdata(client)); | |
8bae3e23 KK |
716 | return 0; |
717 | } | |
718 | ||
719 | static const struct i2c_device_id wm8971_i2c_id[] = { | |
720 | { "wm8971", 0 }, | |
721 | { } | |
722 | }; | |
723 | MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id); | |
724 | ||
725 | static struct i2c_driver wm8971_i2c_driver = { | |
726 | .driver = { | |
f0fba2ad | 727 | .name = "wm8971-codec", |
8bae3e23 KK |
728 | .owner = THIS_MODULE, |
729 | }, | |
f0fba2ad LG |
730 | .probe = wm8971_i2c_probe, |
731 | .remove = __devexit_p(wm8971_i2c_remove), | |
8bae3e23 KK |
732 | .id_table = wm8971_i2c_id, |
733 | }; | |
8bae3e23 KK |
734 | #endif |
735 | ||
f0fba2ad | 736 | static int __init wm8971_modinit(void) |
8bae3e23 | 737 | { |
8bae3e23 | 738 | int ret = 0; |
f0fba2ad LG |
739 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
740 | ret = i2c_add_driver(&wm8971_i2c_driver); | |
8bae3e23 | 741 | if (ret != 0) { |
f0fba2ad LG |
742 | printk(KERN_ERR "Failed to register WM8971 I2C driver: %d\n", |
743 | ret); | |
8bae3e23 | 744 | } |
8bae3e23 | 745 | #endif |
f0fba2ad | 746 | return ret; |
64089b84 MB |
747 | } |
748 | module_init(wm8971_modinit); | |
749 | ||
750 | static void __exit wm8971_exit(void) | |
751 | { | |
f0fba2ad LG |
752 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
753 | i2c_del_driver(&wm8971_i2c_driver); | |
754 | #endif | |
64089b84 MB |
755 | } |
756 | module_exit(wm8971_exit); | |
757 | ||
8bae3e23 KK |
758 | MODULE_DESCRIPTION("ASoC WM8971 driver"); |
759 | MODULE_AUTHOR("Lab126"); | |
760 | MODULE_LICENSE("GPL"); |