blob: b549f6753abad5e6c5dd2a5128a59bfa1100b62b [file] [log] [blame]
Mark Brown5d421512008-06-05 13:49:32 +01001/*
2 * wm8510.c -- WM8510 ALSA Soc Audio driver
3 *
4 * Copyright 2006 Wolfson Microelectronics PLC.
5 *
6 * Author: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
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>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24#include <sound/soc.h>
25#include <sound/soc-dapm.h>
26#include <sound/initval.h>
27
28#include "wm8510.h"
29
30#define AUDIO_NAME "wm8510"
31#define WM8510_VERSION "0.6"
32
Mark Brown5d421512008-06-05 13:49:32 +010033struct 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,
Mark Brown05a076d2008-06-06 17:13:53 +010055 0x0001,
Mark Brown5d421512008-06-05 13:49:32 +010056};
57
58/*
59 * read wm8510 register cache
60 */
61static inline unsigned int wm8510_read_reg_cache(struct snd_soc_codec *codec,
62 unsigned int reg)
63{
64 u16 *cache = codec->reg_cache;
65 if (reg == WM8510_RESET)
66 return 0;
67 if (reg >= WM8510_CACHEREGNUM)
68 return -1;
69 return cache[reg];
70}
71
72/*
73 * write wm8510 register cache
74 */
75static inline void wm8510_write_reg_cache(struct snd_soc_codec *codec,
76 u16 reg, unsigned int value)
77{
78 u16 *cache = codec->reg_cache;
79 if (reg >= WM8510_CACHEREGNUM)
80 return;
81 cache[reg] = value;
82}
83
84/*
85 * write to the WM8510 register space
86 */
87static int wm8510_write(struct snd_soc_codec *codec, unsigned int reg,
88 unsigned int value)
89{
90 u8 data[2];
91
92 /* data is
93 * D15..D9 WM8510 register offset
94 * D8...D0 register data
95 */
96 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
97 data[1] = value & 0x00ff;
98
99 wm8510_write_reg_cache(codec, reg, value);
100 if (codec->hw_write(codec->control_data, data, 2) == 2)
101 return 0;
102 else
103 return -EIO;
104}
105
106#define wm8510_reset(c) wm8510_write(c, WM8510_RESET, 0)
107
108static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
109static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
110static const char *wm8510_alc[] = { "ALC", "Limiter" };
111
112static const struct soc_enum wm8510_enum[] = {
113 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
114 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
115 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
116 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
117};
118
119static const struct snd_kcontrol_new wm8510_snd_controls[] = {
120
121SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
122
123SOC_ENUM("DAC Companding", wm8510_enum[1]),
124SOC_ENUM("ADC Companding", wm8510_enum[0]),
125
126SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
127SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
128
129SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
130
131SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
132SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
133SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
134
135SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
136
137SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
138SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
139SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
140
141SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
142SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
143
144SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
145SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
146SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
147
148SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
149SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
150SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
151
152SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
153SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
154SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
155
156SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
157SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
158
159SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
160SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
161
162SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
163SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
164SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
165SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
166
167SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
168SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
169};
170
171/* add non dapm controls */
172static int wm8510_add_controls(struct snd_soc_codec *codec)
173{
174 int err, i;
175
176 for (i = 0; i < ARRAY_SIZE(wm8510_snd_controls); i++) {
177 err = snd_ctl_add(codec->card,
178 snd_soc_cnew(&wm8510_snd_controls[i], codec,
179 NULL));
180 if (err < 0)
181 return err;
182 }
183
184 return 0;
185}
186
187/* Speaker Output Mixer */
188static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
189SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
190SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
191SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
192};
193
194/* Mono Output Mixer */
195static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
196SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
197SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
198SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
199};
200
201static const struct snd_kcontrol_new wm8510_boost_controls[] = {
202SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 0),
203SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
204SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
205};
206
207static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
208SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
209SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
210SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
211};
212
213static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
214SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
215 &wm8510_speaker_mixer_controls[0],
216 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
217SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
218 &wm8510_mono_mixer_controls[0],
219 ARRAY_SIZE(wm8510_mono_mixer_controls)),
220SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
221SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
222SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
223SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
224SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
225SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
226
227SND_SOC_DAPM_PGA("Mic PGA", WM8510_POWER2, 2, 0,
228 &wm8510_micpga_controls[0],
229 ARRAY_SIZE(wm8510_micpga_controls)),
230SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
231 &wm8510_boost_controls[0],
232 ARRAY_SIZE(wm8510_boost_controls)),
233
234SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
235
236SND_SOC_DAPM_INPUT("MICN"),
237SND_SOC_DAPM_INPUT("MICP"),
238SND_SOC_DAPM_INPUT("AUX"),
239SND_SOC_DAPM_OUTPUT("MONOOUT"),
240SND_SOC_DAPM_OUTPUT("SPKOUTP"),
241SND_SOC_DAPM_OUTPUT("SPKOUTN"),
242};
243
244static const struct snd_soc_dapm_route audio_map[] = {
245 /* Mono output mixer */
246 {"Mono Mixer", "PCM Playback Switch", "DAC"},
247 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
248 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
249
250 /* Speaker output mixer */
251 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
252 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
253 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
254
255 /* Outputs */
256 {"Mono Out", NULL, "Mono Mixer"},
257 {"MONOOUT", NULL, "Mono Out"},
258 {"SpkN Out", NULL, "Speaker Mixer"},
259 {"SpkP Out", NULL, "Speaker Mixer"},
260 {"SPKOUTN", NULL, "SpkN Out"},
261 {"SPKOUTP", NULL, "SpkP Out"},
262
263 /* Microphone PGA */
264 {"Mic PGA", "MICN Switch", "MICN"},
265 {"Mic PGA", "MICP Switch", "MICP"},
266 { "Mic PGA", "AUX Switch", "Aux Input" },
267
268 /* Boost Mixer */
269 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
270 {"Boost Mixer", "Mic Volume", "MICP"},
271 {"Boost Mixer", "Aux Volume", "Aux Input"},
272
273 {"ADC", NULL, "Boost Mixer"},
274};
275
276static int wm8510_add_widgets(struct snd_soc_codec *codec)
277{
278 snd_soc_dapm_new_controls(codec, wm8510_dapm_widgets,
279 ARRAY_SIZE(wm8510_dapm_widgets));
280
281 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
282
283 snd_soc_dapm_new_widgets(codec);
284 return 0;
285}
286
287struct pll_ {
288 unsigned int pre_div:4; /* prescale - 1 */
289 unsigned int n:4;
290 unsigned int k;
291};
292
293static struct pll_ pll_div;
294
295/* The size in bits of the pll divide multiplied by 10
296 * to allow rounding later */
297#define FIXED_PLL_SIZE ((1 << 24) * 10)
298
299static void pll_factors(unsigned int target, unsigned int source)
300{
301 unsigned long long Kpart;
302 unsigned int K, Ndiv, Nmod;
303
304 Ndiv = target / source;
305 if (Ndiv < 6) {
306 source >>= 1;
307 pll_div.pre_div = 1;
308 Ndiv = target / source;
309 } else
310 pll_div.pre_div = 0;
311
312 if ((Ndiv < 6) || (Ndiv > 12))
313 printk(KERN_WARNING
314 "WM8510 N value %d outwith recommended range!d\n",
315 Ndiv);
316
317 pll_div.n = Ndiv;
318 Nmod = target % source;
319 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
320
321 do_div(Kpart, source);
322
323 K = Kpart & 0xFFFFFFFF;
324
325 /* Check if we need to round */
326 if ((K % 10) >= 5)
327 K += 5;
328
329 /* Move down to proper range now rounding is done */
330 K /= 10;
331
332 pll_div.k = K;
333}
334
335static int wm8510_set_dai_pll(struct snd_soc_codec_dai *codec_dai,
336 int pll_id, unsigned int freq_in, unsigned int freq_out)
337{
338 struct snd_soc_codec *codec = codec_dai->codec;
339 u16 reg;
340
341 if (freq_in == 0 || freq_out == 0) {
342 /* Clock CODEC directly from MCLK */
343 reg = wm8510_read_reg_cache(codec, WM8510_CLOCK);
344 wm8510_write(codec, WM8510_CLOCK, reg & 0x0ff);
345
346 /* Turn off PLL */
347 reg = wm8510_read_reg_cache(codec, WM8510_POWER1);
348 wm8510_write(codec, WM8510_POWER1, reg & 0x1df);
349 return 0;
350 }
351
352 pll_factors(freq_out*8, freq_in);
353
354 wm8510_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
355 wm8510_write(codec, WM8510_PLLK1, pll_div.k >> 18);
356 wm8510_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
357 wm8510_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
358 reg = wm8510_read_reg_cache(codec, WM8510_POWER1);
359 wm8510_write(codec, WM8510_POWER1, reg | 0x020);
360
361 /* Run CODEC from PLL instead of MCLK */
362 reg = wm8510_read_reg_cache(codec, WM8510_CLOCK);
363 wm8510_write(codec, WM8510_CLOCK, reg | 0x100);
364
365 return 0;
366}
367
368/*
369 * Configure WM8510 clock dividers.
370 */
371static int wm8510_set_dai_clkdiv(struct snd_soc_codec_dai *codec_dai,
372 int div_id, int div)
373{
374 struct snd_soc_codec *codec = codec_dai->codec;
375 u16 reg;
376
377 switch (div_id) {
378 case WM8510_OPCLKDIV:
379 reg = wm8510_read_reg_cache(codec, WM8510_GPIO) & 0x1cf;
380 wm8510_write(codec, WM8510_GPIO, reg | div);
381 break;
382 case WM8510_MCLKDIV:
383 reg = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1f;
384 wm8510_write(codec, WM8510_CLOCK, reg | div);
385 break;
386 case WM8510_ADCCLK:
387 reg = wm8510_read_reg_cache(codec, WM8510_ADC) & 0x1f7;
388 wm8510_write(codec, WM8510_ADC, reg | div);
389 break;
390 case WM8510_DACCLK:
391 reg = wm8510_read_reg_cache(codec, WM8510_DAC) & 0x1f7;
392 wm8510_write(codec, WM8510_DAC, reg | div);
393 break;
394 case WM8510_BCLKDIV:
395 reg = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1e3;
396 wm8510_write(codec, WM8510_CLOCK, reg | div);
397 break;
398 default:
399 return -EINVAL;
400 }
401
402 return 0;
403}
404
405static int wm8510_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
406 unsigned int fmt)
407{
408 struct snd_soc_codec *codec = codec_dai->codec;
409 u16 iface = 0;
410 u16 clk = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1fe;
411
412 /* set master/slave audio interface */
413 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
414 case SND_SOC_DAIFMT_CBM_CFM:
415 clk |= 0x0001;
416 break;
417 case SND_SOC_DAIFMT_CBS_CFS:
418 break;
419 default:
420 return -EINVAL;
421 }
422
423 /* interface format */
424 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
425 case SND_SOC_DAIFMT_I2S:
426 iface |= 0x0010;
427 break;
428 case SND_SOC_DAIFMT_RIGHT_J:
429 break;
430 case SND_SOC_DAIFMT_LEFT_J:
431 iface |= 0x0008;
432 break;
433 case SND_SOC_DAIFMT_DSP_A:
434 iface |= 0x00018;
435 break;
436 default:
437 return -EINVAL;
438 }
439
440 /* clock inversion */
441 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
442 case SND_SOC_DAIFMT_NB_NF:
443 break;
444 case SND_SOC_DAIFMT_IB_IF:
445 iface |= 0x0180;
446 break;
447 case SND_SOC_DAIFMT_IB_NF:
448 iface |= 0x0100;
449 break;
450 case SND_SOC_DAIFMT_NB_IF:
451 iface |= 0x0080;
452 break;
453 default:
454 return -EINVAL;
455 }
456
457 wm8510_write(codec, WM8510_IFACE, iface);
458 wm8510_write(codec, WM8510_CLOCK, clk);
459 return 0;
460}
461
462static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
463 struct snd_pcm_hw_params *params)
464{
465 struct snd_soc_pcm_runtime *rtd = substream->private_data;
466 struct snd_soc_device *socdev = rtd->socdev;
467 struct snd_soc_codec *codec = socdev->codec;
468 u16 iface = wm8510_read_reg_cache(codec, WM8510_IFACE) & 0x19f;
469 u16 adn = wm8510_read_reg_cache(codec, WM8510_ADD) & 0x1f1;
470
471 /* bit size */
472 switch (params_format(params)) {
473 case SNDRV_PCM_FORMAT_S16_LE:
474 break;
475 case SNDRV_PCM_FORMAT_S20_3LE:
476 iface |= 0x0020;
477 break;
478 case SNDRV_PCM_FORMAT_S24_LE:
479 iface |= 0x0040;
480 break;
481 case SNDRV_PCM_FORMAT_S32_LE:
482 iface |= 0x0060;
483 break;
484 }
485
486 /* filter coefficient */
487 switch (params_rate(params)) {
488 case SNDRV_PCM_RATE_8000:
489 adn |= 0x5 << 1;
490 break;
491 case SNDRV_PCM_RATE_11025:
492 adn |= 0x4 << 1;
493 break;
494 case SNDRV_PCM_RATE_16000:
495 adn |= 0x3 << 1;
496 break;
497 case SNDRV_PCM_RATE_22050:
498 adn |= 0x2 << 1;
499 break;
500 case SNDRV_PCM_RATE_32000:
501 adn |= 0x1 << 1;
502 break;
503 case SNDRV_PCM_RATE_44100:
504 case SNDRV_PCM_RATE_48000:
505 break;
506 }
507
508 wm8510_write(codec, WM8510_IFACE, iface);
509 wm8510_write(codec, WM8510_ADD, adn);
510 return 0;
511}
512
513static int wm8510_mute(struct snd_soc_codec_dai *dai, int mute)
514{
515 struct snd_soc_codec *codec = dai->codec;
516 u16 mute_reg = wm8510_read_reg_cache(codec, WM8510_DAC) & 0xffbf;
517
518 if (mute)
519 wm8510_write(codec, WM8510_DAC, mute_reg | 0x40);
520 else
521 wm8510_write(codec, WM8510_DAC, mute_reg);
522 return 0;
523}
524
525/* liam need to make this lower power with dapm */
526static int wm8510_set_bias_level(struct snd_soc_codec *codec,
527 enum snd_soc_bias_level level)
528{
529
530 switch (level) {
531 case SND_SOC_BIAS_ON:
532 wm8510_write(codec, WM8510_POWER1, 0x1ff);
533 wm8510_write(codec, WM8510_POWER2, 0x1ff);
534 wm8510_write(codec, WM8510_POWER3, 0x1ff);
535 break;
536 case SND_SOC_BIAS_PREPARE:
537 case SND_SOC_BIAS_STANDBY:
538 break;
539 case SND_SOC_BIAS_OFF:
540 /* everything off, dac mute, inactive */
541 wm8510_write(codec, WM8510_POWER1, 0x0);
542 wm8510_write(codec, WM8510_POWER2, 0x0);
543 wm8510_write(codec, WM8510_POWER3, 0x0);
544 break;
545 }
546 codec->bias_level = level;
547 return 0;
548}
549
550#define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
551 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
552 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
553
554#define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
555 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
556
557struct snd_soc_codec_dai wm8510_dai = {
558 .name = "WM8510 HiFi",
559 .playback = {
560 .stream_name = "Playback",
561 .channels_min = 2,
562 .channels_max = 2,
563 .rates = WM8510_RATES,
564 .formats = WM8510_FORMATS,},
565 .capture = {
566 .stream_name = "Capture",
567 .channels_min = 2,
568 .channels_max = 2,
569 .rates = WM8510_RATES,
570 .formats = WM8510_FORMATS,},
571 .ops = {
572 .hw_params = wm8510_pcm_hw_params,
573 },
574 .dai_ops = {
575 .digital_mute = wm8510_mute,
576 .set_fmt = wm8510_set_dai_fmt,
577 .set_clkdiv = wm8510_set_dai_clkdiv,
578 .set_pll = wm8510_set_dai_pll,
579 },
580};
581EXPORT_SYMBOL_GPL(wm8510_dai);
582
583static int wm8510_suspend(struct platform_device *pdev, pm_message_t state)
584{
585 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
586 struct snd_soc_codec *codec = socdev->codec;
587
588 wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
589 return 0;
590}
591
592static int wm8510_resume(struct platform_device *pdev)
593{
594 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
595 struct snd_soc_codec *codec = socdev->codec;
596 int i;
597 u8 data[2];
598 u16 *cache = codec->reg_cache;
599
600 /* Sync reg_cache with the hardware */
601 for (i = 0; i < ARRAY_SIZE(wm8510_reg); i++) {
602 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
603 data[1] = cache[i] & 0x00ff;
604 codec->hw_write(codec->control_data, data, 2);
605 }
606 wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
607 wm8510_set_bias_level(codec, codec->suspend_bias_level);
608 return 0;
609}
610
611/*
612 * initialise the WM8510 driver
613 * register the mixer and dsp interfaces with the kernel
614 */
615static int wm8510_init(struct snd_soc_device *socdev)
616{
617 struct snd_soc_codec *codec = socdev->codec;
618 int ret = 0;
619
620 codec->name = "WM8510";
621 codec->owner = THIS_MODULE;
622 codec->read = wm8510_read_reg_cache;
623 codec->write = wm8510_write;
624 codec->set_bias_level = wm8510_set_bias_level;
625 codec->dai = &wm8510_dai;
626 codec->num_dai = 1;
627 codec->reg_cache_size = ARRAY_SIZE(wm8510_reg);
628 codec->reg_cache = kmemdup(wm8510_reg, sizeof(wm8510_reg), GFP_KERNEL);
629
630 if (codec->reg_cache == NULL)
631 return -ENOMEM;
632
633 wm8510_reset(codec);
634
635 /* register pcms */
636 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
637 if (ret < 0) {
638 printk(KERN_ERR "wm8510: failed to create pcms\n");
639 goto pcm_err;
640 }
641
642 /* power on device */
643 wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
644 wm8510_add_controls(codec);
645 wm8510_add_widgets(codec);
646 ret = snd_soc_register_card(socdev);
647 if (ret < 0) {
648 printk(KERN_ERR "wm8510: failed to register card\n");
649 goto card_err;
650 }
651 return ret;
652
653card_err:
654 snd_soc_free_pcms(socdev);
655 snd_soc_dapm_free(socdev);
656pcm_err:
657 kfree(codec->reg_cache);
658 return ret;
659}
660
661static struct snd_soc_device *wm8510_socdev;
662
663#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
664
665/*
666 * WM8510 2 wire address is 0x1a
667 */
668#define I2C_DRIVERID_WM8510 0xfefe /* liam - need a proper id */
669
670static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
671
672/* Magic definition of all other variables and things */
673I2C_CLIENT_INSMOD;
674
675static struct i2c_driver wm8510_i2c_driver;
676static struct i2c_client client_template;
677
678/* If the i2c layer weren't so broken, we could pass this kind of data
679 around */
680
681static int wm8510_codec_probe(struct i2c_adapter *adap, int addr, int kind)
682{
683 struct snd_soc_device *socdev = wm8510_socdev;
684 struct wm8510_setup_data *setup = socdev->codec_data;
685 struct snd_soc_codec *codec = socdev->codec;
686 struct i2c_client *i2c;
687 int ret;
688
689 if (addr != setup->i2c_address)
690 return -ENODEV;
691
692 client_template.adapter = adap;
693 client_template.addr = addr;
694
695 i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
696 if (i2c == NULL) {
697 kfree(codec);
698 return -ENOMEM;
699 }
700 i2c_set_clientdata(i2c, codec);
701 codec->control_data = i2c;
702
703 ret = i2c_attach_client(i2c);
704 if (ret < 0) {
Mark Browna5c95e92008-06-23 14:51:29 +0100705 pr_err("failed to attach codec at addr %x\n", addr);
Mark Brown5d421512008-06-05 13:49:32 +0100706 goto err;
707 }
708
709 ret = wm8510_init(socdev);
710 if (ret < 0) {
Mark Browna5c95e92008-06-23 14:51:29 +0100711 pr_err("failed to initialise WM8510\n");
Mark Brown5d421512008-06-05 13:49:32 +0100712 goto err;
713 }
714 return ret;
715
716err:
717 kfree(codec);
718 kfree(i2c);
719 return ret;
720}
721
722static int wm8510_i2c_detach(struct i2c_client *client)
723{
724 struct snd_soc_codec *codec = i2c_get_clientdata(client);
725 i2c_detach_client(client);
726 kfree(codec->reg_cache);
727 kfree(client);
728 return 0;
729}
730
731static int wm8510_i2c_attach(struct i2c_adapter *adap)
732{
733 return i2c_probe(adap, &addr_data, wm8510_codec_probe);
734}
735
736/* corgi i2c codec control layer */
737static struct i2c_driver wm8510_i2c_driver = {
738 .driver = {
739 .name = "WM8510 I2C Codec",
740 .owner = THIS_MODULE,
741 },
742 .id = I2C_DRIVERID_WM8510,
743 .attach_adapter = wm8510_i2c_attach,
744 .detach_client = wm8510_i2c_detach,
745 .command = NULL,
746};
747
748static struct i2c_client client_template = {
749 .name = "WM8510",
750 .driver = &wm8510_i2c_driver,
751};
752#endif
753
754static int wm8510_probe(struct platform_device *pdev)
755{
756 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
757 struct wm8510_setup_data *setup;
758 struct snd_soc_codec *codec;
759 int ret = 0;
760
Mark Browna5c95e92008-06-23 14:51:29 +0100761 pr_info("WM8510 Audio Codec %s", WM8510_VERSION);
Mark Brown5d421512008-06-05 13:49:32 +0100762
763 setup = socdev->codec_data;
764 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
765 if (codec == NULL)
766 return -ENOMEM;
767
768 socdev->codec = codec;
769 mutex_init(&codec->mutex);
770 INIT_LIST_HEAD(&codec->dapm_widgets);
771 INIT_LIST_HEAD(&codec->dapm_paths);
772
773 wm8510_socdev = socdev;
774#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
775 if (setup->i2c_address) {
776 normal_i2c[0] = setup->i2c_address;
777 codec->hw_write = (hw_write_t)i2c_master_send;
778 ret = i2c_add_driver(&wm8510_i2c_driver);
779 if (ret != 0)
780 printk(KERN_ERR "can't add i2c driver");
781 }
782#else
783 /* Add other interfaces here */
784#endif
785 return ret;
786}
787
788/* power down chip */
789static int wm8510_remove(struct platform_device *pdev)
790{
791 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
792 struct snd_soc_codec *codec = socdev->codec;
793
794 if (codec->control_data)
795 wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
796
797 snd_soc_free_pcms(socdev);
798 snd_soc_dapm_free(socdev);
799#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
800 i2c_del_driver(&wm8510_i2c_driver);
801#endif
802 kfree(codec);
803
804 return 0;
805}
806
807struct snd_soc_codec_device soc_codec_dev_wm8510 = {
808 .probe = wm8510_probe,
809 .remove = wm8510_remove,
810 .suspend = wm8510_suspend,
811 .resume = wm8510_resume,
812};
813EXPORT_SYMBOL_GPL(soc_codec_dev_wm8510);
814
815MODULE_DESCRIPTION("ASoC WM8510 driver");
816MODULE_AUTHOR("Liam Girdwood");
817MODULE_LICENSE("GPL");