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ASoC: Drop unused state parameter from CODEC suspend callback
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / soc / codecs / wm8971.c
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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
33static struct workqueue_struct *wm8971_workq = NULL;
34
35/* codec private data */
36struct 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 */
46static 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 */
63static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" };
64static const char *wm8971_bass_filter[] = { "130Hz @ 48kHz",
65 "200Hz @ 48kHz" };
66static const char *wm8971_treble[] = { "8kHz", "4kHz" };
67static const char *wm8971_alc_func[] = { "Off", "Right", "Left", "Stereo" };
68static const char *wm8971_ng_type[] = { "Constant PGA Gain",
69 "Mute ADC Output" };
70static const char *wm8971_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
71static const char *wm8971_mono_mux[] = {"Stereo", "Mono (Left)",
72 "Mono (Right)", "Digital Mono"};
73static const char *wm8971_dac_phase[] = { "Non Inverted", "Inverted" };
74static const char *wm8971_lline_mux[] = {"Line", "NC", "NC", "PGA",
75 "Differential"};
76static const char *wm8971_rline_mux[] = {"Line", "Mic", "NC", "PGA",
77 "Differential"};
78static const char *wm8971_lpga_sel[] = {"Line", "NC", "NC", "Differential"};
79static const char *wm8971_rpga_sel[] = {"Line", "Mic", "NC", "Differential"};
80static const char *wm8971_adcpol[] = {"Normal", "L Invert", "R Invert",
81 "L + R Invert"};
82
83static 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
100static 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 */
164static const struct snd_kcontrol_new wm8971_left_mixer_controls[] = {
165SOC_DAPM_SINGLE("Playback Switch", WM8971_LOUTM1, 8, 1, 0),
166SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_LOUTM1, 7, 1, 0),
167SOC_DAPM_SINGLE("Right Playback Switch", WM8971_LOUTM2, 8, 1, 0),
168SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_LOUTM2, 7, 1, 0),
169};
170
171/* Right Mixer */
172static const struct snd_kcontrol_new wm8971_right_mixer_controls[] = {
173SOC_DAPM_SINGLE("Left Playback Switch", WM8971_ROUTM1, 8, 1, 0),
174SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_ROUTM1, 7, 1, 0),
175SOC_DAPM_SINGLE("Playback Switch", WM8971_ROUTM2, 8, 1, 0),
176SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_ROUTM2, 7, 1, 0),
177};
178
179/* Mono Mixer */
180static const struct snd_kcontrol_new wm8971_mono_mixer_controls[] = {
181SOC_DAPM_SINGLE("Left Playback Switch", WM8971_MOUTM1, 8, 1, 0),
182SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_MOUTM1, 7, 1, 0),
183SOC_DAPM_SINGLE("Right Playback Switch", WM8971_MOUTM2, 8, 1, 0),
184SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_MOUTM2, 7, 1, 0),
185};
186
187/* Left Line Mux */
188static const struct snd_kcontrol_new wm8971_left_line_controls =
189SOC_DAPM_ENUM("Route", wm8971_enum[8]);
190
191/* Right Line Mux */
192static const struct snd_kcontrol_new wm8971_right_line_controls =
193SOC_DAPM_ENUM("Route", wm8971_enum[9]);
194
195/* Left PGA Mux */
196static const struct snd_kcontrol_new wm8971_left_pga_controls =
197SOC_DAPM_ENUM("Route", wm8971_enum[10]);
198
199/* Right PGA Mux */
200static const struct snd_kcontrol_new wm8971_right_pga_controls =
201SOC_DAPM_ENUM("Route", wm8971_enum[11]);
202
203/* Mono ADC Mux */
204static const struct snd_kcontrol_new wm8971_monomux_controls =
205SOC_DAPM_ENUM("Route", wm8971_enum[13]);
206
207static 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
255static 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
332static 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
343struct _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 */
352static 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
401static 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
412static 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
430static 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
488static 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
523static 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
535static 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 569static 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		 576static 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
593static 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 602static 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 608static 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 626static 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 */
671static 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
680static 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)
692static __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 712static __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
719static const struct i2c_device_id wm8971_i2c_id[] = {
720 { "wm8971", 0 },
721 { }
722};
723MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id);
724
725static 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 736static 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}
748module_init(wm8971_modinit);
749
750static 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}
756module_exit(wm8971_exit);
757
8bae3e23
KK		 758MODULE_DESCRIPTION("ASoC WM8971 driver");
759MODULE_AUTHOR("Lab126");
760MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)