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ASoC: Move DAI structure definitions into new soc-dai.h
[deliverable/linux.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>
5d421516
MB		 22#include <sound/core.h>
23#include <sound/pcm.h>
24#include <sound/pcm_params.h>
25#include <sound/soc.h>
26#include <sound/soc-dapm.h>
27#include <sound/initval.h>
28
29#include "wm8510.h"
30
5d421516
MB		 31#define WM8510_VERSION "0.6"
32
5d421516
MB		 33struct snd_soc_codec_device soc_codec_dev_wm8510;
34
35/*
36 * wm8510 register cache
37 * We can't read the WM8510 register space when we are
38 * using 2 wire for device control, so we cache them instead.
39 */
40static const u16 wm8510_reg[WM8510_CACHEREGNUM] = {
41 0x0000, 0x0000, 0x0000, 0x0000,
42 0x0050, 0x0000, 0x0140, 0x0000,
43 0x0000, 0x0000, 0x0000, 0x00ff,
44 0x0000, 0x0000, 0x0100, 0x00ff,
45 0x0000, 0x0000, 0x012c, 0x002c,
46 0x002c, 0x002c, 0x002c, 0x0000,
47 0x0032, 0x0000, 0x0000, 0x0000,
48 0x0000, 0x0000, 0x0000, 0x0000,
49 0x0038, 0x000b, 0x0032, 0x0000,
50 0x0008, 0x000c, 0x0093, 0x00e9,
51 0x0000, 0x0000, 0x0000, 0x0000,
52 0x0003, 0x0010, 0x0000, 0x0000,
53 0x0000, 0x0002, 0x0001, 0x0000,
54 0x0000, 0x0000, 0x0039, 0x0000,
05a076de 55 0x0001,
5d421516
MB		 56};
57
09af98b0
MB		 58#define WM8510_POWER1_BIASEN 0x08
59#define WM8510_POWER1_BUFIOEN 0x10
60
5d421516
MB		 61/*
62 * read wm8510 register cache
63 */
64static inline unsigned int wm8510_read_reg_cache(struct snd_soc_codec *codec,
65 unsigned int reg)
66{
67 u16 *cache = codec->reg_cache;
68 if (reg == WM8510_RESET)
69 return 0;
70 if (reg >= WM8510_CACHEREGNUM)
71 return -1;
72 return cache[reg];
73}
74
75/*
76 * write wm8510 register cache
77 */
78static inline void wm8510_write_reg_cache(struct snd_soc_codec *codec,
79 u16 reg, unsigned int value)
80{
81 u16 *cache = codec->reg_cache;
82 if (reg >= WM8510_CACHEREGNUM)
83 return;
84 cache[reg] = value;
85}
86
87/*
88 * write to the WM8510 register space
89 */
90static int wm8510_write(struct snd_soc_codec *codec, unsigned int reg,
91 unsigned int value)
92{
93 u8 data[2];
94
95 /* data is
96 * D15..D9 WM8510 register offset
97 * D8...D0 register data
98 */
99 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
100 data[1] = value & 0x00ff;
101
102 wm8510_write_reg_cache(codec, reg, value);
103 if (codec->hw_write(codec->control_data, data, 2) == 2)
104 return 0;
105 else
106 return -EIO;
107}
108
109#define wm8510_reset(c) wm8510_write(c, WM8510_RESET, 0)
110
111static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
112static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
113static const char *wm8510_alc[] = { "ALC", "Limiter" };
114
115static const struct soc_enum wm8510_enum[] = {
116 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
117 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
118 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
119 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
120};
121
122static const struct snd_kcontrol_new wm8510_snd_controls[] = {
123
124SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
125
126SOC_ENUM("DAC Companding", wm8510_enum[1]),
127SOC_ENUM("ADC Companding", wm8510_enum[0]),
128
129SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
130SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
131
132SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
133
134SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
135SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
136SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
137
138SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
139
140SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
141SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
142SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
143
144SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
145SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
146
147SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
148SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
149SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
150
151SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
152SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
153SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
154
155SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
156SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
157SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
158
159SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
160SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
161
162SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
163SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
164
165SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
166SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
167SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
168SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
169
170SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
171SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
172};
173
174/* add non dapm controls */
175static int wm8510_add_controls(struct snd_soc_codec *codec)
176{
177 int err, i;
178
179 for (i = 0; i < ARRAY_SIZE(wm8510_snd_controls); i++) {
180 err = snd_ctl_add(codec->card,
181 snd_soc_cnew(&wm8510_snd_controls[i], codec,
182 NULL));
183 if (err < 0)
184 return err;
185 }
186
187 return 0;
188}
189
190/* Speaker Output Mixer */
191static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
192SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
193SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
194SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
195};
196
197/* Mono Output Mixer */
198static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
199SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
200SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
201SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
202};
203
204static const struct snd_kcontrol_new wm8510_boost_controls[] = {
8ae23ec3 205SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
5d421516
MB		 206SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
207SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
208};
209
210static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
211SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
212SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
213SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
214};
215
216static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
217SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
218 &wm8510_speaker_mixer_controls[0],
219 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
220SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
221 &wm8510_mono_mixer_controls[0],
222 ARRAY_SIZE(wm8510_mono_mixer_controls)),
223SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
224SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
225SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
226SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
227SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
228SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
229
2b5f34c5
MB		 230SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
231 &wm8510_micpga_controls[0],
232 ARRAY_SIZE(wm8510_micpga_controls)),
5d421516
MB		 233SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
234 &wm8510_boost_controls[0],
235 ARRAY_SIZE(wm8510_boost_controls)),
236
237SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
238
239SND_SOC_DAPM_INPUT("MICN"),
240SND_SOC_DAPM_INPUT("MICP"),
241SND_SOC_DAPM_INPUT("AUX"),
242SND_SOC_DAPM_OUTPUT("MONOOUT"),
243SND_SOC_DAPM_OUTPUT("SPKOUTP"),
244SND_SOC_DAPM_OUTPUT("SPKOUTN"),
245};
246
247static const struct snd_soc_dapm_route audio_map[] = {
248 /* Mono output mixer */
249 {"Mono Mixer", "PCM Playback Switch", "DAC"},
250 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
251 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
252
253 /* Speaker output mixer */
254 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
255 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
256 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
257
258 /* Outputs */
259 {"Mono Out", NULL, "Mono Mixer"},
260 {"MONOOUT", NULL, "Mono Out"},
261 {"SpkN Out", NULL, "Speaker Mixer"},
262 {"SpkP Out", NULL, "Speaker Mixer"},
263 {"SPKOUTN", NULL, "SpkN Out"},
264 {"SPKOUTP", NULL, "SpkP Out"},
265
266 /* Microphone PGA */
267 {"Mic PGA", "MICN Switch", "MICN"},
268 {"Mic PGA", "MICP Switch", "MICP"},
269 { "Mic PGA", "AUX Switch", "Aux Input" },
270
271 /* Boost Mixer */
272 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
273 {"Boost Mixer", "Mic Volume", "MICP"},
274 {"Boost Mixer", "Aux Volume", "Aux Input"},
275
276 {"ADC", NULL, "Boost Mixer"},
277};
278
279static int wm8510_add_widgets(struct snd_soc_codec *codec)
280{
281 snd_soc_dapm_new_controls(codec, wm8510_dapm_widgets,
282 ARRAY_SIZE(wm8510_dapm_widgets));
283
284 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
285
286 snd_soc_dapm_new_widgets(codec);
287 return 0;
288}
289
290struct pll_ {
291 unsigned int pre_div:4; /* prescale - 1 */
292 unsigned int n:4;
293 unsigned int k;
294};
295
296static struct pll_ pll_div;
297
298/* The size in bits of the pll divide multiplied by 10
299 * to allow rounding later */
300#define FIXED_PLL_SIZE ((1 << 24) * 10)
301
302static void pll_factors(unsigned int target, unsigned int source)
303{
304 unsigned long long Kpart;
305 unsigned int K, Ndiv, Nmod;
306
307 Ndiv = target / source;
308 if (Ndiv < 6) {
309 source >>= 1;
310 pll_div.pre_div = 1;
311 Ndiv = target / source;
312 } else
313 pll_div.pre_div = 0;
314
315 if ((Ndiv < 6) || (Ndiv > 12))
316 printk(KERN_WARNING
317 "WM8510 N value %d outwith recommended range!d\n",
318 Ndiv);
319
320 pll_div.n = Ndiv;
321 Nmod = target % source;
322 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
323
324 do_div(Kpart, source);
325
326 K = Kpart & 0xFFFFFFFF;
327
328 /* Check if we need to round */
329 if ((K % 10) >= 5)
330 K += 5;
331
332 /* Move down to proper range now rounding is done */
333 K /= 10;
334
335 pll_div.k = K;
336}
337
e550e17f 338static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai,
5d421516
MB		 339 int pll_id, unsigned int freq_in, unsigned int freq_out)
340{
341 struct snd_soc_codec *codec = codec_dai->codec;
342 u16 reg;
343
344 if (freq_in == 0 || freq_out == 0) {
345 /* Clock CODEC directly from MCLK */
346 reg = wm8510_read_reg_cache(codec, WM8510_CLOCK);
347 wm8510_write(codec, WM8510_CLOCK, reg & 0x0ff);
348
349 /* Turn off PLL */
350 reg = wm8510_read_reg_cache(codec, WM8510_POWER1);
351 wm8510_write(codec, WM8510_POWER1, reg & 0x1df);
352 return 0;
353 }
354
355 pll_factors(freq_out*8, freq_in);
356
357 wm8510_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
358 wm8510_write(codec, WM8510_PLLK1, pll_div.k >> 18);
359 wm8510_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
360 wm8510_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
361 reg = wm8510_read_reg_cache(codec, WM8510_POWER1);
362 wm8510_write(codec, WM8510_POWER1, reg | 0x020);
363
364 /* Run CODEC from PLL instead of MCLK */
365 reg = wm8510_read_reg_cache(codec, WM8510_CLOCK);
366 wm8510_write(codec, WM8510_CLOCK, reg | 0x100);
367
368 return 0;
369}
370
371/*
372 * Configure WM8510 clock dividers.
373 */
e550e17f 374static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
5d421516
MB		 375 int div_id, int div)
376{
377 struct snd_soc_codec *codec = codec_dai->codec;
378 u16 reg;
379
380 switch (div_id) {
381 case WM8510_OPCLKDIV:
382 reg = wm8510_read_reg_cache(codec, WM8510_GPIO) & 0x1cf;
383 wm8510_write(codec, WM8510_GPIO, reg | div);
384 break;
385 case WM8510_MCLKDIV:
386 reg = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1f;
387 wm8510_write(codec, WM8510_CLOCK, reg | div);
388 break;
389 case WM8510_ADCCLK:
390 reg = wm8510_read_reg_cache(codec, WM8510_ADC) & 0x1f7;
391 wm8510_write(codec, WM8510_ADC, reg | div);
392 break;
393 case WM8510_DACCLK:
394 reg = wm8510_read_reg_cache(codec, WM8510_DAC) & 0x1f7;
395 wm8510_write(codec, WM8510_DAC, reg | div);
396 break;
397 case WM8510_BCLKDIV:
398 reg = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1e3;
399 wm8510_write(codec, WM8510_CLOCK, reg | div);
400 break;
401 default:
402 return -EINVAL;
403 }
404
405 return 0;
406}
407
e550e17f 408static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
5d421516
MB		 409 unsigned int fmt)
410{
411 struct snd_soc_codec *codec = codec_dai->codec;
412 u16 iface = 0;
413 u16 clk = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1fe;
414
415 /* set master/slave audio interface */
416 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
417 case SND_SOC_DAIFMT_CBM_CFM:
418 clk |= 0x0001;
419 break;
420 case SND_SOC_DAIFMT_CBS_CFS:
421 break;
422 default:
423 return -EINVAL;
424 }
425
426 /* interface format */
427 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
428 case SND_SOC_DAIFMT_I2S:
429 iface |= 0x0010;
430 break;
431 case SND_SOC_DAIFMT_RIGHT_J:
432 break;
433 case SND_SOC_DAIFMT_LEFT_J:
434 iface |= 0x0008;
435 break;
436 case SND_SOC_DAIFMT_DSP_A:
437 iface |= 0x00018;
438 break;
439 default:
440 return -EINVAL;
441 }
442
443 /* clock inversion */
444 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
445 case SND_SOC_DAIFMT_NB_NF:
446 break;
447 case SND_SOC_DAIFMT_IB_IF:
448 iface |= 0x0180;
449 break;
450 case SND_SOC_DAIFMT_IB_NF:
451 iface |= 0x0100;
452 break;
453 case SND_SOC_DAIFMT_NB_IF:
454 iface |= 0x0080;
455 break;
456 default:
457 return -EINVAL;
458 }
459
460 wm8510_write(codec, WM8510_IFACE, iface);
461 wm8510_write(codec, WM8510_CLOCK, clk);
462 return 0;
463}
464
465static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
466 struct snd_pcm_hw_params *params)
467{
468 struct snd_soc_pcm_runtime *rtd = substream->private_data;
469 struct snd_soc_device *socdev = rtd->socdev;
470 struct snd_soc_codec *codec = socdev->codec;
471 u16 iface = wm8510_read_reg_cache(codec, WM8510_IFACE) & 0x19f;
472 u16 adn = wm8510_read_reg_cache(codec, WM8510_ADD) & 0x1f1;
473
474 /* bit size */
475 switch (params_format(params)) {
476 case SNDRV_PCM_FORMAT_S16_LE:
477 break;
478 case SNDRV_PCM_FORMAT_S20_3LE:
479 iface |= 0x0020;
480 break;
481 case SNDRV_PCM_FORMAT_S24_LE:
482 iface |= 0x0040;
483 break;
484 case SNDRV_PCM_FORMAT_S32_LE:
485 iface |= 0x0060;
486 break;
487 }
488
489 /* filter coefficient */
490 switch (params_rate(params)) {
491 case SNDRV_PCM_RATE_8000:
492 adn |= 0x5 << 1;
493 break;
494 case SNDRV_PCM_RATE_11025:
495 adn |= 0x4 << 1;
496 break;
497 case SNDRV_PCM_RATE_16000:
498 adn |= 0x3 << 1;
499 break;
500 case SNDRV_PCM_RATE_22050:
501 adn |= 0x2 << 1;
502 break;
503 case SNDRV_PCM_RATE_32000:
504 adn |= 0x1 << 1;
505 break;
506 case SNDRV_PCM_RATE_44100:
507 case SNDRV_PCM_RATE_48000:
508 break;
509 }
510
511 wm8510_write(codec, WM8510_IFACE, iface);
512 wm8510_write(codec, WM8510_ADD, adn);
513 return 0;
514}
515
e550e17f 516static int wm8510_mute(struct snd_soc_dai *dai, int mute)
5d421516
MB		 517{
518 struct snd_soc_codec *codec = dai->codec;
519 u16 mute_reg = wm8510_read_reg_cache(codec, WM8510_DAC) & 0xffbf;
520
521 if (mute)
522 wm8510_write(codec, WM8510_DAC, mute_reg | 0x40);
523 else
524 wm8510_write(codec, WM8510_DAC, mute_reg);
525 return 0;
526}
527
528/* liam need to make this lower power with dapm */
529static int wm8510_set_bias_level(struct snd_soc_codec *codec,
530 enum snd_soc_bias_level level)
531{
09af98b0 532 u16 power1 = wm8510_read_reg_cache(codec, WM8510_POWER1) & ~0x3;
5d421516
MB		 533
534 switch (level) {
535 case SND_SOC_BIAS_ON:
5d421516 536 case SND_SOC_BIAS_PREPARE:
09af98b0
MB		 537 power1 |= 0x1; /* VMID 50k */
538 wm8510_write(codec, WM8510_POWER1, power1);
539 break;
540
5d421516 541 case SND_SOC_BIAS_STANDBY:
09af98b0
MB		 542 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
543
544 if (codec->bias_level == SND_SOC_BIAS_OFF) {
545 /* Initial cap charge at VMID 5k */
546 wm8510_write(codec, WM8510_POWER1, power1 | 0x3);
547 mdelay(100);
548 }
549
550 power1 |= 0x2; /* VMID 500k */
551 wm8510_write(codec, WM8510_POWER1, power1);
5d421516 552 break;
09af98b0 553
5d421516 554 case SND_SOC_BIAS_OFF:
09af98b0
MB		 555 wm8510_write(codec, WM8510_POWER1, 0);
556 wm8510_write(codec, WM8510_POWER2, 0);
557 wm8510_write(codec, WM8510_POWER3, 0);
5d421516
MB		 558 break;
559 }
09af98b0 560
5d421516
MB		 561 codec->bias_level = level;
562 return 0;
563}
564
565#define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
566 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
567 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
568
569#define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
570 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
571
e550e17f 572struct snd_soc_dai wm8510_dai = {
5d421516
MB		 573 .name = "WM8510 HiFi",
574 .playback = {
575 .stream_name = "Playback",
576 .channels_min = 2,
577 .channels_max = 2,
578 .rates = WM8510_RATES,
579 .formats = WM8510_FORMATS,},
580 .capture = {
581 .stream_name = "Capture",
582 .channels_min = 2,
583 .channels_max = 2,
584 .rates = WM8510_RATES,
585 .formats = WM8510_FORMATS,},
586 .ops = {
587 .hw_params = wm8510_pcm_hw_params,
588 },
589 .dai_ops = {
590 .digital_mute = wm8510_mute,
591 .set_fmt = wm8510_set_dai_fmt,
592 .set_clkdiv = wm8510_set_dai_clkdiv,
593 .set_pll = wm8510_set_dai_pll,
594 },
595};
596EXPORT_SYMBOL_GPL(wm8510_dai);
597
598static int wm8510_suspend(struct platform_device *pdev, pm_message_t state)
599{
600 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
601 struct snd_soc_codec *codec = socdev->codec;
602
603 wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
604 return 0;
605}
606
607static int wm8510_resume(struct platform_device *pdev)
608{
609 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
610 struct snd_soc_codec *codec = socdev->codec;
611 int i;
612 u8 data[2];
613 u16 *cache = codec->reg_cache;
614
615 /* Sync reg_cache with the hardware */
616 for (i = 0; i < ARRAY_SIZE(wm8510_reg); i++) {
617 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
618 data[1] = cache[i] & 0x00ff;
619 codec->hw_write(codec->control_data, data, 2);
620 }
621 wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
622 wm8510_set_bias_level(codec, codec->suspend_bias_level);
623 return 0;
624}
625
626/*
627 * initialise the WM8510 driver
628 * register the mixer and dsp interfaces with the kernel
629 */
630static int wm8510_init(struct snd_soc_device *socdev)
631{
632 struct snd_soc_codec *codec = socdev->codec;
633 int ret = 0;
634
635 codec->name = "WM8510";
636 codec->owner = THIS_MODULE;
637 codec->read = wm8510_read_reg_cache;
638 codec->write = wm8510_write;
639 codec->set_bias_level = wm8510_set_bias_level;
640 codec->dai = &wm8510_dai;
641 codec->num_dai = 1;
642 codec->reg_cache_size = ARRAY_SIZE(wm8510_reg);
643 codec->reg_cache = kmemdup(wm8510_reg, sizeof(wm8510_reg), GFP_KERNEL);
644
645 if (codec->reg_cache == NULL)
646 return -ENOMEM;
647
648 wm8510_reset(codec);
649
650 /* register pcms */
651 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
652 if (ret < 0) {
653 printk(KERN_ERR "wm8510: failed to create pcms\n");
654 goto pcm_err;
655 }
656
657 /* power on device */
09af98b0 658 codec->bias_level = SND_SOC_BIAS_OFF;
5d421516
MB		 659 wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
660 wm8510_add_controls(codec);
661 wm8510_add_widgets(codec);
662 ret = snd_soc_register_card(socdev);
663 if (ret < 0) {
664 printk(KERN_ERR "wm8510: failed to register card\n");
665 goto card_err;
666 }
667 return ret;
668
669card_err:
670 snd_soc_free_pcms(socdev);
671 snd_soc_dapm_free(socdev);
672pcm_err:
673 kfree(codec->reg_cache);
674 return ret;
675}
676
677static struct snd_soc_device *wm8510_socdev;
678
679#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
680
681/*
682 * WM8510 2 wire address is 0x1a
683 */
5d421516 684
41759c2e
JD		 685static int wm8510_i2c_probe(struct i2c_client *i2c,
686 const struct i2c_device_id *id)
5d421516
MB		 687{
688 struct snd_soc_device *socdev = wm8510_socdev;
5d421516 689 struct snd_soc_codec *codec = socdev->codec;
5d421516
MB		 690 int ret;
691
5d421516
MB		 692 i2c_set_clientdata(i2c, codec);
693 codec->control_data = i2c;
694
5d421516 695 ret = wm8510_init(socdev);
41759c2e 696 if (ret < 0)
a5c95e90 697 pr_err("failed to initialise WM8510\n");
5d421516 698
5d421516
MB		 699 return ret;
700}
701
41759c2e 702static int wm8510_i2c_remove(struct i2c_client *client)
5d421516
MB		 703{
704 struct snd_soc_codec *codec = i2c_get_clientdata(client);
5d421516 705 kfree(codec->reg_cache);
5d421516
MB		 706 return 0;
707}
708
41759c2e
JD		 709static const struct i2c_device_id wm8510_i2c_id[] = {
710 { "wm8510", 0 },
711 { }
712};
713MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
5d421516 714
5d421516
MB		 715static struct i2c_driver wm8510_i2c_driver = {
716 .driver = {
717 .name = "WM8510 I2C Codec",
718 .owner = THIS_MODULE,
719 },
41759c2e
JD		 720 .probe = wm8510_i2c_probe,
721 .remove = wm8510_i2c_remove,
722 .id_table = wm8510_i2c_id,
5d421516
MB		 723};
724
41759c2e
JD		 725static int wm8510_add_i2c_device(struct platform_device *pdev,
726 const struct wm8510_setup_data *setup)
727{
728 struct i2c_board_info info;
729 struct i2c_adapter *adapter;
730 struct i2c_client *client;
731 int ret;
732
733 ret = i2c_add_driver(&wm8510_i2c_driver);
734 if (ret != 0) {
735 dev_err(&pdev->dev, "can't add i2c driver\n");
736 return ret;
737 }
738
739 memset(&info, 0, sizeof(struct i2c_board_info));
740 info.addr = setup->i2c_address;
741 strlcpy(info.type, "wm8510", I2C_NAME_SIZE);
742
743 adapter = i2c_get_adapter(setup->i2c_bus);
744 if (!adapter) {
745 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
746 setup->i2c_bus);
747 goto err_driver;
748 }
749
750 client = i2c_new_device(adapter, &info);
751 i2c_put_adapter(adapter);
752 if (!client) {
753 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
754 (unsigned int)info.addr);
755 goto err_driver;
756 }
757
758 return 0;
759
760err_driver:
761 i2c_del_driver(&wm8510_i2c_driver);
762 return -ENODEV;
763}
5d421516
MB		 764#endif
765
5e357952
MB		 766#if defined(CONFIG_SPI_MASTER)
767static int __devinit wm8510_spi_probe(struct spi_device *spi)
768{
769 struct snd_soc_device *socdev = wm8510_socdev;
770 struct snd_soc_codec *codec = socdev->codec;
771 int ret;
772
773 codec->control_data = spi;
774
775 ret = wm8510_init(socdev);
776 if (ret < 0)
777 dev_err(&spi->dev, "failed to initialise WM8510\n");
778
779 return ret;
780}
781
782static int __devexit wm8510_spi_remove(struct spi_device *spi)
783{
784 return 0;
785}
786
787static struct spi_driver wm8510_spi_driver = {
788 .driver = {
789 .name = "wm8510",
790 .bus = &spi_bus_type,
791 .owner = THIS_MODULE,
792 },
793 .probe = wm8510_spi_probe,
794 .remove = __devexit_p(wm8510_spi_remove),
795};
796
797static int wm8510_spi_write(struct spi_device *spi, const char *data, int len)
798{
799 struct spi_transfer t;
800 struct spi_message m;
801 u8 msg[2];
802
803 if (len <= 0)
804 return 0;
805
806 msg[0] = data[0];
807 msg[1] = data[1];
808
809 spi_message_init(&m);
810 memset(&t, 0, (sizeof t));
811
812 t.tx_buf = &msg[0];
813 t.len = len;
814
815 spi_message_add_tail(&t, &m);
816 spi_sync(spi, &m);
817
818 return len;
819}
820#endif /* CONFIG_SPI_MASTER */
821
5d421516
MB		 822static int wm8510_probe(struct platform_device *pdev)
823{
824 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
825 struct wm8510_setup_data *setup;
826 struct snd_soc_codec *codec;
827 int ret = 0;
828
a5c95e90 829 pr_info("WM8510 Audio Codec %s", WM8510_VERSION);
5d421516
MB		 830
831 setup = socdev->codec_data;
832 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
833 if (codec == NULL)
834 return -ENOMEM;
835
836 socdev->codec = codec;
837 mutex_init(&codec->mutex);
838 INIT_LIST_HEAD(&codec->dapm_widgets);
839 INIT_LIST_HEAD(&codec->dapm_paths);
840
841 wm8510_socdev = socdev;
842#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
843 if (setup->i2c_address) {
5d421516 844 codec->hw_write = (hw_write_t)i2c_master_send;
41759c2e 845 ret = wm8510_add_i2c_device(pdev, setup);
5d421516 846 }
5e357952
MB		 847#endif
848#if defined(CONFIG_SPI_MASTER)
849 if (setup->spi) {
850 codec->hw_write = (hw_write_t)wm8510_spi_write;
851 ret = spi_register_driver(&wm8510_spi_driver);
852 if (ret != 0)
853 printk(KERN_ERR "can't add spi driver");
854 }
5d421516 855#endif
3051e41a
JD		 856
857 if (ret != 0)
858 kfree(codec);
5d421516
MB		 859 return ret;
860}
861
862/* power down chip */
863static int wm8510_remove(struct platform_device *pdev)
864{
865 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
866 struct snd_soc_codec *codec = socdev->codec;
867
868 if (codec->control_data)
869 wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
870
871 snd_soc_free_pcms(socdev);
872 snd_soc_dapm_free(socdev);
873#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
41759c2e 874 i2c_unregister_device(codec->control_data);
5d421516 875 i2c_del_driver(&wm8510_i2c_driver);
5e357952
MB		 876#endif
877#if defined(CONFIG_SPI_MASTER)
878 spi_unregister_driver(&wm8510_spi_driver);
5d421516
MB		 879#endif
880 kfree(codec);
881
882 return 0;
883}
884
885struct snd_soc_codec_device soc_codec_dev_wm8510 = {
886 .probe = wm8510_probe,
887 .remove = wm8510_remove,
888 .suspend = wm8510_suspend,
889 .resume = wm8510_resume,
890};
891EXPORT_SYMBOL_GPL(soc_codec_dev_wm8510);
892
893MODULE_DESCRIPTION("ASoC WM8510 driver");
894MODULE_AUTHOR("Liam Girdwood");
895MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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