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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / soc / codecs / wm8510.c
CommitLineData
5d421516
MB		 1/*
2 * wm8510.c -- WM8510 ALSA Soc Audio driver
3 *
4 * Copyright 2006 Wolfson Microelectronics PLC.
5 *
d331124d 6 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
5d421516
MB		 7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/moduleparam.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/delay.h>
18#include <linux/pm.h>
19#include <linux/i2c.h>
20#include <linux/platform_device.h>
5e357952 21#include <linux/spi/spi.h>
5a0e3ad6 22#include <linux/slab.h>
5d421516
MB		 23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/pcm_params.h>
26#include <sound/soc.h>
27#include <sound/soc-dapm.h>
28#include <sound/initval.h>
29
30#include "wm8510.h"
31
5d421516
MB		 32#define WM8510_VERSION "0.6"
33
5d421516
MB		 34struct snd_soc_codec_device soc_codec_dev_wm8510;
35
36/*
37 * wm8510 register cache
38 * We can't read the WM8510 register space when we are
39 * using 2 wire for device control, so we cache them instead.
40 */
41static const u16 wm8510_reg[WM8510_CACHEREGNUM] = {
42 0x0000, 0x0000, 0x0000, 0x0000,
43 0x0050, 0x0000, 0x0140, 0x0000,
44 0x0000, 0x0000, 0x0000, 0x00ff,
45 0x0000, 0x0000, 0x0100, 0x00ff,
46 0x0000, 0x0000, 0x012c, 0x002c,
47 0x002c, 0x002c, 0x002c, 0x0000,
48 0x0032, 0x0000, 0x0000, 0x0000,
49 0x0000, 0x0000, 0x0000, 0x0000,
50 0x0038, 0x000b, 0x0032, 0x0000,
51 0x0008, 0x000c, 0x0093, 0x00e9,
52 0x0000, 0x0000, 0x0000, 0x0000,
53 0x0003, 0x0010, 0x0000, 0x0000,
54 0x0000, 0x0002, 0x0001, 0x0000,
55 0x0000, 0x0000, 0x0039, 0x0000,
05a076de 56 0x0001,
5d421516
MB		 57};
58
09af98b0
MB		 59#define WM8510_POWER1_BIASEN 0x08
60#define WM8510_POWER1_BUFIOEN 0x10
61
17a52fd6 62#define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0)
5d421516
MB		 63
64static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
65static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
66static const char *wm8510_alc[] = { "ALC", "Limiter" };
67
68static const struct soc_enum wm8510_enum[] = {
69 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
70 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
71 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
72 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
73};
74
75static const struct snd_kcontrol_new wm8510_snd_controls[] = {
76
77SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
78
79SOC_ENUM("DAC Companding", wm8510_enum[1]),
80SOC_ENUM("ADC Companding", wm8510_enum[0]),
81
82SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
83SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
84
85SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
86
87SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
88SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
89SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
90
91SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
92
93SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
94SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
95SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
96
97SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
98SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
99
100SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
101SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
102SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
103
104SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
105SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
106SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
107
108SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
109SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
110SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
111
112SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
113SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
114
115SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
116SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
117
118SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
119SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
120SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
121SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
122
123SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
124SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
125};
126
5d421516
MB		 127/* Speaker Output Mixer */
128static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
129SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
130SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
131SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
132};
133
134/* Mono Output Mixer */
135static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
136SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
137SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
138SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
139};
140
141static const struct snd_kcontrol_new wm8510_boost_controls[] = {
8ae23ec3 142SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
5d421516
MB		 143SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
144SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
145};
146
147static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
148SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
149SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
150SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
151};
152
153static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
154SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
155 &wm8510_speaker_mixer_controls[0],
156 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
157SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
158 &wm8510_mono_mixer_controls[0],
159 ARRAY_SIZE(wm8510_mono_mixer_controls)),
160SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
161SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
162SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
163SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
164SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
165SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
166
2b5f34c5
MB		 167SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
168 &wm8510_micpga_controls[0],
169 ARRAY_SIZE(wm8510_micpga_controls)),
5d421516
MB		 170SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
171 &wm8510_boost_controls[0],
172 ARRAY_SIZE(wm8510_boost_controls)),
173
174SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
175
176SND_SOC_DAPM_INPUT("MICN"),
177SND_SOC_DAPM_INPUT("MICP"),
178SND_SOC_DAPM_INPUT("AUX"),
179SND_SOC_DAPM_OUTPUT("MONOOUT"),
180SND_SOC_DAPM_OUTPUT("SPKOUTP"),
181SND_SOC_DAPM_OUTPUT("SPKOUTN"),
182};
183
184static const struct snd_soc_dapm_route audio_map[] = {
185 /* Mono output mixer */
186 {"Mono Mixer", "PCM Playback Switch", "DAC"},
187 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
188 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
189
190 /* Speaker output mixer */
191 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
192 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
193 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
194
195 /* Outputs */
196 {"Mono Out", NULL, "Mono Mixer"},
197 {"MONOOUT", NULL, "Mono Out"},
198 {"SpkN Out", NULL, "Speaker Mixer"},
199 {"SpkP Out", NULL, "Speaker Mixer"},
200 {"SPKOUTN", NULL, "SpkN Out"},
201 {"SPKOUTP", NULL, "SpkP Out"},
202
203 /* Microphone PGA */
204 {"Mic PGA", "MICN Switch", "MICN"},
205 {"Mic PGA", "MICP Switch", "MICP"},
206 { "Mic PGA", "AUX Switch", "Aux Input" },
207
208 /* Boost Mixer */
209 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
210 {"Boost Mixer", "Mic Volume", "MICP"},
211 {"Boost Mixer", "Aux Volume", "Aux Input"},
212
213 {"ADC", NULL, "Boost Mixer"},
214};
215
216static int wm8510_add_widgets(struct snd_soc_codec *codec)
217{
218 snd_soc_dapm_new_controls(codec, wm8510_dapm_widgets,
219 ARRAY_SIZE(wm8510_dapm_widgets));
220
221 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
222
5d421516
MB		 223 return 0;
224}
225
226struct pll_ {
227 unsigned int pre_div:4; /* prescale - 1 */
228 unsigned int n:4;
229 unsigned int k;
230};
231
232static struct pll_ pll_div;
233
234/* The size in bits of the pll divide multiplied by 10
235 * to allow rounding later */
236#define FIXED_PLL_SIZE ((1 << 24) * 10)
237
238static void pll_factors(unsigned int target, unsigned int source)
239{
240 unsigned long long Kpart;
241 unsigned int K, Ndiv, Nmod;
242
243 Ndiv = target / source;
244 if (Ndiv < 6) {
245 source >>= 1;
246 pll_div.pre_div = 1;
247 Ndiv = target / source;
248 } else
249 pll_div.pre_div = 0;
250
251 if ((Ndiv < 6) || (Ndiv > 12))
252 printk(KERN_WARNING
449bd54d 253 "WM8510 N value %u outwith recommended range!d\n",
5d421516
MB		 254 Ndiv);
255
256 pll_div.n = Ndiv;
257 Nmod = target % source;
258 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
259
260 do_div(Kpart, source);
261
262 K = Kpart & 0xFFFFFFFF;
263
264 /* Check if we need to round */
265 if ((K % 10) >= 5)
266 K += 5;
267
268 /* Move down to proper range now rounding is done */
269 K /= 10;
270
271 pll_div.k = K;
272}
273
85488037
MB		 274static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
275 int source, unsigned int freq_in, unsigned int freq_out)
5d421516
MB		 276{
277 struct snd_soc_codec *codec = codec_dai->codec;
278 u16 reg;
279
280 if (freq_in == 0 || freq_out == 0) {
281 /* Clock CODEC directly from MCLK */
17a52fd6
MB		 282 reg = snd_soc_read(codec, WM8510_CLOCK);
283 snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff);
5d421516
MB		 284
285 /* Turn off PLL */
17a52fd6
MB		 286 reg = snd_soc_read(codec, WM8510_POWER1);
287 snd_soc_write(codec, WM8510_POWER1, reg & 0x1df);
5d421516
MB		 288 return 0;
289 }
290
86027ae7 291 pll_factors(freq_out*4, freq_in);
5d421516 292
17a52fd6
MB		 293 snd_soc_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
294 snd_soc_write(codec, WM8510_PLLK1, pll_div.k >> 18);
295 snd_soc_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
296 snd_soc_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
297 reg = snd_soc_read(codec, WM8510_POWER1);
298 snd_soc_write(codec, WM8510_POWER1, reg | 0x020);
5d421516
MB		 299
300 /* Run CODEC from PLL instead of MCLK */
17a52fd6
MB		 301 reg = snd_soc_read(codec, WM8510_CLOCK);
302 snd_soc_write(codec, WM8510_CLOCK, reg | 0x100);
5d421516
MB		 303
304 return 0;
305}
306
307/*
308 * Configure WM8510 clock dividers.
309 */
e550e17f 310static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
5d421516
MB		 311 int div_id, int div)
312{
313 struct snd_soc_codec *codec = codec_dai->codec;
314 u16 reg;
315
316 switch (div_id) {
317 case WM8510_OPCLKDIV:
17a52fd6
MB		 318 reg = snd_soc_read(codec, WM8510_GPIO) & 0x1cf;
319 snd_soc_write(codec, WM8510_GPIO, reg | div);
5d421516
MB		 320 break;
321 case WM8510_MCLKDIV:
17a52fd6
MB		 322 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x11f;
323 snd_soc_write(codec, WM8510_CLOCK, reg | div);
5d421516
MB		 324 break;
325 case WM8510_ADCCLK:
17a52fd6
MB		 326 reg = snd_soc_read(codec, WM8510_ADC) & 0x1f7;
327 snd_soc_write(codec, WM8510_ADC, reg | div);
5d421516
MB		 328 break;
329 case WM8510_DACCLK:
17a52fd6
MB		 330 reg = snd_soc_read(codec, WM8510_DAC) & 0x1f7;
331 snd_soc_write(codec, WM8510_DAC, reg | div);
5d421516
MB		 332 break;
333 case WM8510_BCLKDIV:
17a52fd6
MB		 334 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x1e3;
335 snd_soc_write(codec, WM8510_CLOCK, reg | div);
5d421516
MB		 336 break;
337 default:
338 return -EINVAL;
339 }
340
341 return 0;
342}
343
e550e17f 344static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
5d421516
MB		 345 unsigned int fmt)
346{
347 struct snd_soc_codec *codec = codec_dai->codec;
348 u16 iface = 0;
17a52fd6 349 u16 clk = snd_soc_read(codec, WM8510_CLOCK) & 0x1fe;
5d421516
MB		 350
351 /* set master/slave audio interface */
352 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
353 case SND_SOC_DAIFMT_CBM_CFM:
354 clk |= 0x0001;
355 break;
356 case SND_SOC_DAIFMT_CBS_CFS:
357 break;
358 default:
359 return -EINVAL;
360 }
361
362 /* interface format */
363 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
364 case SND_SOC_DAIFMT_I2S:
365 iface |= 0x0010;
366 break;
367 case SND_SOC_DAIFMT_RIGHT_J:
368 break;
369 case SND_SOC_DAIFMT_LEFT_J:
370 iface |= 0x0008;
371 break;
372 case SND_SOC_DAIFMT_DSP_A:
373 iface |= 0x00018;
374 break;
375 default:
376 return -EINVAL;
377 }
378
379 /* clock inversion */
380 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
381 case SND_SOC_DAIFMT_NB_NF:
382 break;
383 case SND_SOC_DAIFMT_IB_IF:
384 iface |= 0x0180;
385 break;
386 case SND_SOC_DAIFMT_IB_NF:
387 iface |= 0x0100;
388 break;
389 case SND_SOC_DAIFMT_NB_IF:
390 iface |= 0x0080;
391 break;
392 default:
393 return -EINVAL;
394 }
395
17a52fd6
MB		 396 snd_soc_write(codec, WM8510_IFACE, iface);
397 snd_soc_write(codec, WM8510_CLOCK, clk);
5d421516
MB		 398 return 0;
399}
400
401static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
dee89c4d
MB		 402 struct snd_pcm_hw_params *params,
403 struct snd_soc_dai *dai)
5d421516
MB		 404{
405 struct snd_soc_pcm_runtime *rtd = substream->private_data;
406 struct snd_soc_device *socdev = rtd->socdev;
6627a653 407 struct snd_soc_codec *codec = socdev->card->codec;
17a52fd6
MB		 408 u16 iface = snd_soc_read(codec, WM8510_IFACE) & 0x19f;
409 u16 adn = snd_soc_read(codec, WM8510_ADD) & 0x1f1;
5d421516
MB		 410
411 /* bit size */
412 switch (params_format(params)) {
413 case SNDRV_PCM_FORMAT_S16_LE:
414 break;
415 case SNDRV_PCM_FORMAT_S20_3LE:
416 iface |= 0x0020;
417 break;
418 case SNDRV_PCM_FORMAT_S24_LE:
419 iface |= 0x0040;
420 break;
421 case SNDRV_PCM_FORMAT_S32_LE:
422 iface |= 0x0060;
423 break;
424 }
425
426 /* filter coefficient */
427 switch (params_rate(params)) {
b3172f22 428 case 8000:
5d421516
MB		 429 adn |= 0x5 << 1;
430 break;
b3172f22 431 case 11025:
5d421516
MB		 432 adn |= 0x4 << 1;
433 break;
b3172f22 434 case 16000:
5d421516
MB		 435 adn |= 0x3 << 1;
436 break;
b3172f22 437 case 22050:
5d421516
MB		 438 adn |= 0x2 << 1;
439 break;
b3172f22 440 case 32000:
5d421516
MB		 441 adn |= 0x1 << 1;
442 break;
b3172f22
GL		 443 case 44100:
444 case 48000:
5d421516
MB		 445 break;
446 }
447
17a52fd6
MB		 448 snd_soc_write(codec, WM8510_IFACE, iface);
449 snd_soc_write(codec, WM8510_ADD, adn);
5d421516
MB		 450 return 0;
451}
452
e550e17f 453static int wm8510_mute(struct snd_soc_dai *dai, int mute)
5d421516
MB		 454{
455 struct snd_soc_codec *codec = dai->codec;
17a52fd6 456 u16 mute_reg = snd_soc_read(codec, WM8510_DAC) & 0xffbf;
5d421516
MB		 457
458 if (mute)
17a52fd6 459 snd_soc_write(codec, WM8510_DAC, mute_reg | 0x40);
5d421516 460 else
17a52fd6 461 snd_soc_write(codec, WM8510_DAC, mute_reg);
5d421516
MB		 462 return 0;
463}
464
465/* liam need to make this lower power with dapm */
466static int wm8510_set_bias_level(struct snd_soc_codec *codec,
467 enum snd_soc_bias_level level)
468{
17a52fd6 469 u16 power1 = snd_soc_read(codec, WM8510_POWER1) & ~0x3;
5d421516
MB		 470
471 switch (level) {
472 case SND_SOC_BIAS_ON:
5d421516 473 case SND_SOC_BIAS_PREPARE:
09af98b0 474 power1 |= 0x1; /* VMID 50k */
17a52fd6 475 snd_soc_write(codec, WM8510_POWER1, power1);
09af98b0
MB		 476 break;
477
5d421516 478 case SND_SOC_BIAS_STANDBY:
09af98b0
MB		 479 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
480
481 if (codec->bias_level == SND_SOC_BIAS_OFF) {
482 /* Initial cap charge at VMID 5k */
17a52fd6 483 snd_soc_write(codec, WM8510_POWER1, power1 | 0x3);
09af98b0
MB		 484 mdelay(100);
485 }
486
487 power1 |= 0x2; /* VMID 500k */
17a52fd6 488 snd_soc_write(codec, WM8510_POWER1, power1);
5d421516 489 break;
09af98b0 490
5d421516 491 case SND_SOC_BIAS_OFF:
17a52fd6
MB		 492 snd_soc_write(codec, WM8510_POWER1, 0);
493 snd_soc_write(codec, WM8510_POWER2, 0);
494 snd_soc_write(codec, WM8510_POWER3, 0);
5d421516
MB		 495 break;
496 }
09af98b0 497
5d421516
MB		 498 codec->bias_level = level;
499 return 0;
500}
501
502#define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
503 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
504 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
505
506#define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
507 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
508
6335d055
EM		 509static struct snd_soc_dai_ops wm8510_dai_ops = {
510 .hw_params = wm8510_pcm_hw_params,
511 .digital_mute = wm8510_mute,
512 .set_fmt = wm8510_set_dai_fmt,
513 .set_clkdiv = wm8510_set_dai_clkdiv,
514 .set_pll = wm8510_set_dai_pll,
515};
516
e550e17f 517struct snd_soc_dai wm8510_dai = {
5d421516
MB		 518 .name = "WM8510 HiFi",
519 .playback = {
520 .stream_name = "Playback",
521 .channels_min = 2,
522 .channels_max = 2,
523 .rates = WM8510_RATES,
524 .formats = WM8510_FORMATS,},
525 .capture = {
526 .stream_name = "Capture",
527 .channels_min = 2,
528 .channels_max = 2,
529 .rates = WM8510_RATES,
530 .formats = WM8510_FORMATS,},
6335d055 531 .ops = &wm8510_dai_ops,
cc369cf5 532 .symmetric_rates = 1,
5d421516
MB		 533};
534EXPORT_SYMBOL_GPL(wm8510_dai);
535
536static int wm8510_suspend(struct platform_device *pdev, pm_message_t state)
537{
538 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
6627a653 539 struct snd_soc_codec *codec = socdev->card->codec;
5d421516
MB		 540
541 wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
542 return 0;
543}
544
545static int wm8510_resume(struct platform_device *pdev)
546{
547 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
6627a653 548 struct snd_soc_codec *codec = socdev->card->codec;
5d421516
MB		 549 int i;
550 u8 data[2];
551 u16 *cache = codec->reg_cache;
552
553 /* Sync reg_cache with the hardware */
554 for (i = 0; i < ARRAY_SIZE(wm8510_reg); i++) {
555 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
556 data[1] = cache[i] & 0x00ff;
557 codec->hw_write(codec->control_data, data, 2);
558 }
559 wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
560 wm8510_set_bias_level(codec, codec->suspend_bias_level);
561 return 0;
562}
563
564/*
565 * initialise the WM8510 driver
566 * register the mixer and dsp interfaces with the kernel
567 */
7084a42b
MB		 568static int wm8510_init(struct snd_soc_device *socdev,
569 enum snd_soc_control_type control)
5d421516 570{
6627a653 571 struct snd_soc_codec *codec = socdev->card->codec;
5d421516
MB		 572 int ret = 0;
573
574 codec->name = "WM8510";
575 codec->owner = THIS_MODULE;
5d421516
MB		 576 codec->set_bias_level = wm8510_set_bias_level;
577 codec->dai = &wm8510_dai;
578 codec->num_dai = 1;
579 codec->reg_cache_size = ARRAY_SIZE(wm8510_reg);
580 codec->reg_cache = kmemdup(wm8510_reg, sizeof(wm8510_reg), GFP_KERNEL);
581
582 if (codec->reg_cache == NULL)
583 return -ENOMEM;
584
7084a42b 585 ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
17a52fd6
MB		 586 if (ret < 0) {
587 printk(KERN_ERR "wm8510: failed to set cache I/O: %d\n",
588 ret);
589 goto err;
590 }
591
5d421516
MB		 592 wm8510_reset(codec);
593
594 /* register pcms */
595 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
596 if (ret < 0) {
597 printk(KERN_ERR "wm8510: failed to create pcms\n");
17a52fd6 598 goto err;
5d421516
MB		 599 }
600
601 /* power on device */
09af98b0 602 codec->bias_level = SND_SOC_BIAS_OFF;
5d421516 603 wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
3e8e1952
IM		 604 snd_soc_add_controls(codec, wm8510_snd_controls,
605 ARRAY_SIZE(wm8510_snd_controls));
5d421516 606 wm8510_add_widgets(codec);
fe3e78e0 607
5d421516
MB		 608 return ret;
609
17a52fd6 610err:
5d421516
MB		 611 kfree(codec->reg_cache);
612 return ret;
613}
614
615static struct snd_soc_device *wm8510_socdev;
616
617#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
618
619/*
620 * WM8510 2 wire address is 0x1a
621 */
5d421516 622
41759c2e
JD		 623static int wm8510_i2c_probe(struct i2c_client *i2c,
624 const struct i2c_device_id *id)
5d421516
MB		 625{
626 struct snd_soc_device *socdev = wm8510_socdev;
6627a653 627 struct snd_soc_codec *codec = socdev->card->codec;
5d421516
MB		 628 int ret;
629
5d421516
MB		 630 i2c_set_clientdata(i2c, codec);
631 codec->control_data = i2c;
632
7084a42b 633 ret = wm8510_init(socdev, SND_SOC_I2C);
41759c2e 634 if (ret < 0)
a5c95e90 635 pr_err("failed to initialise WM8510\n");
5d421516 636
5d421516
MB		 637 return ret;
638}
639
41759c2e 640static int wm8510_i2c_remove(struct i2c_client *client)
5d421516
MB		 641{
642 struct snd_soc_codec *codec = i2c_get_clientdata(client);
5d421516 643 kfree(codec->reg_cache);
5d421516
MB		 644 return 0;
645}
646
41759c2e
JD		 647static const struct i2c_device_id wm8510_i2c_id[] = {
648 { "wm8510", 0 },
649 { }
650};
651MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
5d421516 652
5d421516
MB		 653static struct i2c_driver wm8510_i2c_driver = {
654 .driver = {
655 .name = "WM8510 I2C Codec",
656 .owner = THIS_MODULE,
657 },
41759c2e
JD		 658 .probe = wm8510_i2c_probe,
659 .remove = wm8510_i2c_remove,
660 .id_table = wm8510_i2c_id,
5d421516
MB		 661};
662
41759c2e
JD		 663static int wm8510_add_i2c_device(struct platform_device *pdev,
664 const struct wm8510_setup_data *setup)
665{
666 struct i2c_board_info info;
667 struct i2c_adapter *adapter;
668 struct i2c_client *client;
669 int ret;
670
671 ret = i2c_add_driver(&wm8510_i2c_driver);
672 if (ret != 0) {
673 dev_err(&pdev->dev, "can't add i2c driver\n");
674 return ret;
675 }
676
677 memset(&info, 0, sizeof(struct i2c_board_info));
678 info.addr = setup->i2c_address;
679 strlcpy(info.type, "wm8510", I2C_NAME_SIZE);
680
681 adapter = i2c_get_adapter(setup->i2c_bus);
682 if (!adapter) {
683 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
684 setup->i2c_bus);
685 goto err_driver;
686 }
687
688 client = i2c_new_device(adapter, &info);
689 i2c_put_adapter(adapter);
690 if (!client) {
691 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
692 (unsigned int)info.addr);
693 goto err_driver;
694 }
695
696 return 0;
697
698err_driver:
699 i2c_del_driver(&wm8510_i2c_driver);
700 return -ENODEV;
701}
5d421516
MB		 702#endif
703
5e357952
MB		 704#if defined(CONFIG_SPI_MASTER)
705static int __devinit wm8510_spi_probe(struct spi_device *spi)
706{
707 struct snd_soc_device *socdev = wm8510_socdev;
6627a653 708 struct snd_soc_codec *codec = socdev->card->codec;
5e357952
MB		 709 int ret;
710
711 codec->control_data = spi;
712
7084a42b 713 ret = wm8510_init(socdev, SND_SOC_SPI);
5e357952
MB		 714 if (ret < 0)
715 dev_err(&spi->dev, "failed to initialise WM8510\n");
716
717 return ret;
718}
719
720static int __devexit wm8510_spi_remove(struct spi_device *spi)
721{
722 return 0;
723}
724
725static struct spi_driver wm8510_spi_driver = {
726 .driver = {
727 .name = "wm8510",
728 .bus = &spi_bus_type,
729 .owner = THIS_MODULE,
730 },
731 .probe = wm8510_spi_probe,
732 .remove = __devexit_p(wm8510_spi_remove),
733};
5e357952
MB		 734#endif /* CONFIG_SPI_MASTER */
735
5d421516
MB		 736static int wm8510_probe(struct platform_device *pdev)
737{
738 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
739 struct wm8510_setup_data *setup;
740 struct snd_soc_codec *codec;
741 int ret = 0;
742
a5c95e90 743 pr_info("WM8510 Audio Codec %s", WM8510_VERSION);
5d421516
MB		 744
745 setup = socdev->codec_data;
746 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
747 if (codec == NULL)
748 return -ENOMEM;
749
6627a653 750 socdev->card->codec = codec;
5d421516
MB		 751 mutex_init(&codec->mutex);
752 INIT_LIST_HEAD(&codec->dapm_widgets);
753 INIT_LIST_HEAD(&codec->dapm_paths);
754
755 wm8510_socdev = socdev;
756#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
757 if (setup->i2c_address) {
41759c2e 758 ret = wm8510_add_i2c_device(pdev, setup);
5d421516 759 }
5e357952
MB		 760#endif
761#if defined(CONFIG_SPI_MASTER)
762 if (setup->spi) {
5e357952
MB		 763 ret = spi_register_driver(&wm8510_spi_driver);
764 if (ret != 0)
765 printk(KERN_ERR "can't add spi driver");
766 }
5d421516 767#endif
3051e41a
JD		 768
769 if (ret != 0)
770 kfree(codec);
5d421516
MB		 771 return ret;
772}
773
774/* power down chip */
775static int wm8510_remove(struct platform_device *pdev)
776{
777 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
6627a653 778 struct snd_soc_codec *codec = socdev->card->codec;
5d421516
MB		 779
780 if (codec->control_data)
781 wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
782
783 snd_soc_free_pcms(socdev);
784 snd_soc_dapm_free(socdev);
785#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
41759c2e 786 i2c_unregister_device(codec->control_data);
5d421516 787 i2c_del_driver(&wm8510_i2c_driver);
5e357952
MB		 788#endif
789#if defined(CONFIG_SPI_MASTER)
790 spi_unregister_driver(&wm8510_spi_driver);
5d421516
MB		 791#endif
792 kfree(codec);
793
794 return 0;
795}
796
797struct snd_soc_codec_device soc_codec_dev_wm8510 = {
798 .probe = wm8510_probe,
799 .remove = wm8510_remove,
800 .suspend = wm8510_suspend,
801 .resume = wm8510_resume,
802};
803EXPORT_SYMBOL_GPL(soc_codec_dev_wm8510);
804
c9b3a40f 805static int __init wm8510_modinit(void)
64089b84
MB		 806{
807 return snd_soc_register_dai(&wm8510_dai);
808}
809module_init(wm8510_modinit);
810
811static void __exit wm8510_exit(void)
812{
813 snd_soc_unregister_dai(&wm8510_dai);
814}
815module_exit(wm8510_exit);
816
5d421516
MB		 817MODULE_DESCRIPTION("ASoC WM8510 driver");
818MODULE_AUTHOR("Liam Girdwood");
819MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)