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ASoC: ak4642: Add set_fmt function for snd_soc_dai_ops
[deliverable/linux.git] / sound / soc / codecs / wm8960.c
CommitLineData
f2644a2c
MB		 1/*
2 * wm8960.c -- WM8960 ALSA SoC Audio driver
3 *
4 * Author: Liam Girdwood
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/module.h>
12#include <linux/moduleparam.h>
13#include <linux/init.h>
14#include <linux/delay.h>
15#include <linux/pm.h>
16#include <linux/i2c.h>
17#include <linux/platform_device.h>
18#include <sound/core.h>
19#include <sound/pcm.h>
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22#include <sound/soc-dapm.h>
23#include <sound/initval.h>
24#include <sound/tlv.h>
b6877a47 25#include <sound/wm8960.h>
f2644a2c
MB		 26
27#include "wm8960.h"
28
29#define AUDIO_NAME "wm8960"
30
31struct snd_soc_codec_device soc_codec_dev_wm8960;
32
33/* R25 - Power 1 */
913d7b4c 34#define WM8960_VMID_MASK 0x180
f2644a2c
MB		 35#define WM8960_VREF 0x40
36
913d7b4c
MB		 37/* R26 - Power 2 */
38#define WM8960_PWR2_LOUT1 0x40
39#define WM8960_PWR2_ROUT1 0x20
40#define WM8960_PWR2_OUT3 0x02
41
f2644a2c
MB		 42/* R28 - Anti-pop 1 */
43#define WM8960_POBCTRL 0x80
44#define WM8960_BUFDCOPEN 0x10
45#define WM8960_BUFIOEN 0x08
46#define WM8960_SOFT_ST 0x04
47#define WM8960_HPSTBY 0x01
48
49/* R29 - Anti-pop 2 */
50#define WM8960_DISOP 0x40
913d7b4c 51#define WM8960_DRES_MASK 0x30
f2644a2c
MB		 52
53/*
54 * wm8960 register cache
55 * We can't read the WM8960 register space when we are
56 * using 2 wire for device control, so we cache them instead.
57 */
58static const u16 wm8960_reg[WM8960_CACHEREGNUM] = {
59 0x0097, 0x0097, 0x0000, 0x0000,
60 0x0000, 0x0008, 0x0000, 0x000a,
61 0x01c0, 0x0000, 0x00ff, 0x00ff,
62 0x0000, 0x0000, 0x0000, 0x0000,
63 0x0000, 0x007b, 0x0100, 0x0032,
64 0x0000, 0x00c3, 0x00c3, 0x01c0,
65 0x0000, 0x0000, 0x0000, 0x0000,
66 0x0000, 0x0000, 0x0000, 0x0000,
67 0x0100, 0x0100, 0x0050, 0x0050,
68 0x0050, 0x0050, 0x0000, 0x0000,
69 0x0000, 0x0000, 0x0040, 0x0000,
70 0x0000, 0x0050, 0x0050, 0x0000,
71 0x0002, 0x0037, 0x004d, 0x0080,
72 0x0008, 0x0031, 0x0026, 0x00e9,
73};
74
75struct wm8960_priv {
76 u16 reg_cache[WM8960_CACHEREGNUM];
77 struct snd_soc_codec codec;
913d7b4c
MB		 78 struct snd_soc_dapm_widget *lout1;
79 struct snd_soc_dapm_widget *rout1;
80 struct snd_soc_dapm_widget *out3;
f2644a2c
MB		 81};
82
17a52fd6 83#define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
f2644a2c
MB		 84
85/* enumerated controls */
86static const char *wm8960_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
87static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
88 "Right Inverted", "Stereo Inversion"};
89static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
90static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
91static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
92static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
93
94static const struct soc_enum wm8960_enum[] = {
95 SOC_ENUM_SINGLE(WM8960_DACCTL1, 1, 4, wm8960_deemph),
96 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
97 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
98 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
99 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
100 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
101 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
102};
103
104static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
105static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
106static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
107static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
108
109static const struct snd_kcontrol_new wm8960_snd_controls[] = {
110SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
111 0, 63, 0, adc_tlv),
112SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
113 6, 1, 0),
114SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
115 7, 1, 0),
116
117SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
118 0, 255, 0, dac_tlv),
119
120SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
121 0, 127, 0, out_tlv),
122SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
123 7, 1, 0),
124
125SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
126 0, 127, 0, out_tlv),
127SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
128 7, 1, 0),
129SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
130SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
131
132SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
133SOC_ENUM("ADC Polarity", wm8960_enum[1]),
134SOC_ENUM("Playback De-emphasis", wm8960_enum[0]),
135SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
136
137SOC_ENUM("DAC Polarity", wm8960_enum[2]),
138
139SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[3]),
140SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[4]),
141SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
142SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
143
144SOC_ENUM("ALC Function", wm8960_enum[5]),
145SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
146SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
147SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
148SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
149SOC_ENUM("ALC Mode", wm8960_enum[6]),
150SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
151SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
152
153SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
154SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
155
156SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
157 0, 127, 0),
158
159SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
160 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
161SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
162 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
163SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
164 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
165SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
166 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
167};
168
169static const struct snd_kcontrol_new wm8960_lin_boost[] = {
170SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
171SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
172SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
173};
174
175static const struct snd_kcontrol_new wm8960_lin[] = {
176SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
177};
178
179static const struct snd_kcontrol_new wm8960_rin_boost[] = {
180SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
181SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
182SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
183};
184
185static const struct snd_kcontrol_new wm8960_rin[] = {
186SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
187};
188
189static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
190SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
191SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
192SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
193};
194
195static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
196SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
197SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
198SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
199};
200
201static const struct snd_kcontrol_new wm8960_mono_out[] = {
202SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
203SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
204};
205
206static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
207SND_SOC_DAPM_INPUT("LINPUT1"),
208SND_SOC_DAPM_INPUT("RINPUT1"),
209SND_SOC_DAPM_INPUT("LINPUT2"),
210SND_SOC_DAPM_INPUT("RINPUT2"),
211SND_SOC_DAPM_INPUT("LINPUT3"),
212SND_SOC_DAPM_INPUT("RINPUT3"),
213
214SND_SOC_DAPM_MICBIAS("MICB", WM8960_POWER1, 1, 0),
215
216SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
217 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
218SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
219 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
220
221SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
222 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
223SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
224 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
225
226SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0),
227SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0),
228
229SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
230SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
231
232SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
233 &wm8960_loutput_mixer[0],
234 ARRAY_SIZE(wm8960_loutput_mixer)),
235SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
236 &wm8960_routput_mixer[0],
237 ARRAY_SIZE(wm8960_routput_mixer)),
238
f2644a2c
MB		 239SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
240SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
241
242SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
243SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
244
245SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
246SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
247
248SND_SOC_DAPM_OUTPUT("SPK_LP"),
249SND_SOC_DAPM_OUTPUT("SPK_LN"),
250SND_SOC_DAPM_OUTPUT("HP_L"),
251SND_SOC_DAPM_OUTPUT("HP_R"),
252SND_SOC_DAPM_OUTPUT("SPK_RP"),
253SND_SOC_DAPM_OUTPUT("SPK_RN"),
254SND_SOC_DAPM_OUTPUT("OUT3"),
255};
256
913d7b4c
MB		 257static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
258SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
259 &wm8960_mono_out[0],
260 ARRAY_SIZE(wm8960_mono_out)),
261};
262
263/* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
264static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
265SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
266};
267
f2644a2c
MB		 268static const struct snd_soc_dapm_route audio_paths[] = {
269 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
270 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
271 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
272
273 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
274 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
275 { "Left Input Mixer", NULL, "LINPUT2" },
276 { "Left Input Mixer", NULL, "LINPUT3" },
277
278 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
279 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
280 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
281
282 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
283 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
284 { "Right Input Mixer", NULL, "RINPUT2" },
285 { "Right Input Mixer", NULL, "LINPUT3" },
286
287 { "Left ADC", NULL, "Left Input Mixer" },
288 { "Right ADC", NULL, "Right Input Mixer" },
289
290 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
291 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
292 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
293
294 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
295 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
296 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
297
f2644a2c
MB		 298 { "LOUT1 PGA", NULL, "Left Output Mixer" },
299 { "ROUT1 PGA", NULL, "Right Output Mixer" },
300
301 { "HP_L", NULL, "LOUT1 PGA" },
302 { "HP_R", NULL, "ROUT1 PGA" },
303
304 { "Left Speaker PGA", NULL, "Left Output Mixer" },
305 { "Right Speaker PGA", NULL, "Right Output Mixer" },
306
307 { "Left Speaker Output", NULL, "Left Speaker PGA" },
308 { "Right Speaker Output", NULL, "Right Speaker PGA" },
309
310 { "SPK_LN", NULL, "Left Speaker Output" },
311 { "SPK_LP", NULL, "Left Speaker Output" },
312 { "SPK_RN", NULL, "Right Speaker Output" },
313 { "SPK_RP", NULL, "Right Speaker Output" },
913d7b4c
MB		 314};
315
316static const struct snd_soc_dapm_route audio_paths_out3[] = {
317 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
318 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
f2644a2c
MB		 319
320 { "OUT3", NULL, "Mono Output Mixer", }
321};
322
913d7b4c
MB		 323static const struct snd_soc_dapm_route audio_paths_capless[] = {
324 { "HP_L", NULL, "OUT3 VMID" },
325 { "HP_R", NULL, "OUT3 VMID" },
326
327 { "OUT3 VMID", NULL, "Left Output Mixer" },
328 { "OUT3 VMID", NULL, "Right Output Mixer" },
329};
330
f2644a2c
MB		 331static int wm8960_add_widgets(struct snd_soc_codec *codec)
332{
913d7b4c
MB		 333 struct wm8960_data *pdata = codec->dev->platform_data;
334 struct wm8960_priv *wm8960 = codec->private_data;
335 struct snd_soc_dapm_widget *w;
336
f2644a2c
MB		 337 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets,
338 ARRAY_SIZE(wm8960_dapm_widgets));
339
340 snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
341
913d7b4c
MB		 342 /* In capless mode OUT3 is used to provide VMID for the
343 * headphone outputs, otherwise it is used as a mono mixer.
344 */
345 if (pdata && pdata->capless) {
346 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets_capless,
347 ARRAY_SIZE(wm8960_dapm_widgets_capless));
348
349 snd_soc_dapm_add_routes(codec, audio_paths_capless,
350 ARRAY_SIZE(audio_paths_capless));
351 } else {
352 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets_out3,
353 ARRAY_SIZE(wm8960_dapm_widgets_out3));
354
355 snd_soc_dapm_add_routes(codec, audio_paths_out3,
356 ARRAY_SIZE(audio_paths_out3));
357 }
358
359 /* We need to power up the headphone output stage out of
360 * sequence for capless mode. To save scanning the widget
361 * list each time to find the desired power state do so now
362 * and save the result.
363 */
364 list_for_each_entry(w, &codec->dapm_widgets, list) {
365 if (strcmp(w->name, "LOUT1 PGA") == 0)
366 wm8960->lout1 = w;
367 if (strcmp(w->name, "ROUT1 PGA") == 0)
368 wm8960->rout1 = w;
369 if (strcmp(w->name, "OUT3 VMID") == 0)
370 wm8960->out3 = w;
371 }
372
f2644a2c
MB		 373 return 0;
374}
375
376static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
377 unsigned int fmt)
378{
379 struct snd_soc_codec *codec = codec_dai->codec;
380 u16 iface = 0;
381
382 /* set master/slave audio interface */
383 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
384 case SND_SOC_DAIFMT_CBM_CFM:
385 iface |= 0x0040;
386 break;
387 case SND_SOC_DAIFMT_CBS_CFS:
388 break;
389 default:
390 return -EINVAL;
391 }
392
393 /* interface format */
394 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
395 case SND_SOC_DAIFMT_I2S:
396 iface |= 0x0002;
397 break;
398 case SND_SOC_DAIFMT_RIGHT_J:
399 break;
400 case SND_SOC_DAIFMT_LEFT_J:
401 iface |= 0x0001;
402 break;
403 case SND_SOC_DAIFMT_DSP_A:
404 iface |= 0x0003;
405 break;
406 case SND_SOC_DAIFMT_DSP_B:
407 iface |= 0x0013;
408 break;
409 default:
410 return -EINVAL;
411 }
412
413 /* clock inversion */
414 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
415 case SND_SOC_DAIFMT_NB_NF:
416 break;
417 case SND_SOC_DAIFMT_IB_IF:
418 iface |= 0x0090;
419 break;
420 case SND_SOC_DAIFMT_IB_NF:
421 iface |= 0x0080;
422 break;
423 case SND_SOC_DAIFMT_NB_IF:
424 iface |= 0x0010;
425 break;
426 default:
427 return -EINVAL;
428 }
429
430 /* set iface */
17a52fd6 431 snd_soc_write(codec, WM8960_IFACE1, iface);
f2644a2c
MB		 432 return 0;
433}
434
435static int wm8960_hw_params(struct snd_pcm_substream *substream,
436 struct snd_pcm_hw_params *params,
437 struct snd_soc_dai *dai)
438{
439 struct snd_soc_pcm_runtime *rtd = substream->private_data;
440 struct snd_soc_device *socdev = rtd->socdev;
441 struct snd_soc_codec *codec = socdev->card->codec;
17a52fd6 442 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
f2644a2c
MB		 443
444 /* bit size */
445 switch (params_format(params)) {
446 case SNDRV_PCM_FORMAT_S16_LE:
447 break;
448 case SNDRV_PCM_FORMAT_S20_3LE:
449 iface |= 0x0004;
450 break;
451 case SNDRV_PCM_FORMAT_S24_LE:
452 iface |= 0x0008;
453 break;
454 }
455
456 /* set iface */
17a52fd6 457 snd_soc_write(codec, WM8960_IFACE1, iface);
f2644a2c
MB		 458 return 0;
459}
460
461static int wm8960_mute(struct snd_soc_dai *dai, int mute)
462{
463 struct snd_soc_codec *codec = dai->codec;
17a52fd6 464 u16 mute_reg = snd_soc_read(codec, WM8960_DACCTL1) & 0xfff7;
f2644a2c
MB		 465
466 if (mute)
17a52fd6 467 snd_soc_write(codec, WM8960_DACCTL1, mute_reg | 0x8);
f2644a2c 468 else
17a52fd6 469 snd_soc_write(codec, WM8960_DACCTL1, mute_reg);
f2644a2c
MB		 470 return 0;
471}
472
913d7b4c
MB		 473static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
474 enum snd_soc_bias_level level)
f2644a2c 475{
f2644a2c
MB		 476 u16 reg;
477
478 switch (level) {
479 case SND_SOC_BIAS_ON:
480 break;
481
482 case SND_SOC_BIAS_PREPARE:
483 /* Set VMID to 2x50k */
17a52fd6 484 reg = snd_soc_read(codec, WM8960_POWER1);
f2644a2c
MB		 485 reg &= ~0x180;
486 reg |= 0x80;
17a52fd6 487 snd_soc_write(codec, WM8960_POWER1, reg);
f2644a2c
MB		 488 break;
489
490 case SND_SOC_BIAS_STANDBY:
491 if (codec->bias_level == SND_SOC_BIAS_OFF) {
492 /* Enable anti-pop features */
17a52fd6 493 snd_soc_write(codec, WM8960_APOP1,
913d7b4c
MB		 494 WM8960_POBCTRL | WM8960_SOFT_ST |
495 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
f2644a2c
MB		 496
497 /* Enable & ramp VMID at 2x50k */
17a52fd6 498 reg = snd_soc_read(codec, WM8960_POWER1);
f2644a2c 499 reg |= 0x80;
17a52fd6 500 snd_soc_write(codec, WM8960_POWER1, reg);
f2644a2c
MB		 501 msleep(100);
502
503 /* Enable VREF */
17a52fd6 504 snd_soc_write(codec, WM8960_POWER1, reg | WM8960_VREF);
f2644a2c
MB		 505
506 /* Disable anti-pop features */
17a52fd6 507 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
f2644a2c
MB		 508 }
509
510 /* Set VMID to 2x250k */
17a52fd6 511 reg = snd_soc_read(codec, WM8960_POWER1);
f2644a2c
MB		 512 reg &= ~0x180;
513 reg |= 0x100;
17a52fd6 514 snd_soc_write(codec, WM8960_POWER1, reg);
f2644a2c
MB		 515 break;
516
517 case SND_SOC_BIAS_OFF:
518 /* Enable anti-pop features */
17a52fd6 519 snd_soc_write(codec, WM8960_APOP1,
f2644a2c
MB		 520 WM8960_POBCTRL | WM8960_SOFT_ST |
521 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
522
523 /* Disable VMID and VREF, let them discharge */
17a52fd6 524 snd_soc_write(codec, WM8960_POWER1, 0);
f2644a2c 525 msleep(600);
913d7b4c
MB		 526 break;
527 }
528
529 codec->bias_level = level;
530
531 return 0;
532}
533
534static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
535 enum snd_soc_bias_level level)
536{
537 struct wm8960_priv *wm8960 = codec->private_data;
538 int reg;
539
540 switch (level) {
541 case SND_SOC_BIAS_ON:
542 break;
543
544 case SND_SOC_BIAS_PREPARE:
545 switch (codec->bias_level) {
546 case SND_SOC_BIAS_STANDBY:
547 /* Enable anti pop mode */
548 snd_soc_update_bits(codec, WM8960_APOP1,
549 WM8960_POBCTRL | WM8960_SOFT_ST |
550 WM8960_BUFDCOPEN,
551 WM8960_POBCTRL | WM8960_SOFT_ST |
552 WM8960_BUFDCOPEN);
553
554 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
555 reg = 0;
556 if (wm8960->lout1 && wm8960->lout1->power)
557 reg |= WM8960_PWR2_LOUT1;
558 if (wm8960->rout1 && wm8960->rout1->power)
559 reg |= WM8960_PWR2_ROUT1;
560 if (wm8960->out3 && wm8960->out3->power)
561 reg |= WM8960_PWR2_OUT3;
562 snd_soc_update_bits(codec, WM8960_POWER2,
563 WM8960_PWR2_LOUT1 |
564 WM8960_PWR2_ROUT1 |
565 WM8960_PWR2_OUT3, reg);
566
567 /* Enable VMID at 2*50k */
568 snd_soc_update_bits(codec, WM8960_POWER1,
569 WM8960_VMID_MASK, 0x80);
570
571 /* Ramp */
572 msleep(100);
573
574 /* Enable VREF */
575 snd_soc_update_bits(codec, WM8960_POWER1,
576 WM8960_VREF, WM8960_VREF);
577
578 msleep(100);
579 break;
580
581 case SND_SOC_BIAS_ON:
582 /* Enable anti-pop mode */
583 snd_soc_update_bits(codec, WM8960_APOP1,
584 WM8960_POBCTRL | WM8960_SOFT_ST |
585 WM8960_BUFDCOPEN,
586 WM8960_POBCTRL | WM8960_SOFT_ST |
587 WM8960_BUFDCOPEN);
588
589 /* Disable VMID and VREF */
590 snd_soc_update_bits(codec, WM8960_POWER1,
591 WM8960_VREF | WM8960_VMID_MASK, 0);
592 break;
593
594 default:
595 break;
596 }
597 break;
598
599 case SND_SOC_BIAS_STANDBY:
600 switch (codec->bias_level) {
601 case SND_SOC_BIAS_PREPARE:
602 /* Disable HP discharge */
603 snd_soc_update_bits(codec, WM8960_APOP2,
604 WM8960_DISOP | WM8960_DRES_MASK,
605 0);
606
607 /* Disable anti-pop features */
608 snd_soc_update_bits(codec, WM8960_APOP1,
609 WM8960_POBCTRL | WM8960_SOFT_ST |
610 WM8960_BUFDCOPEN,
611 WM8960_POBCTRL | WM8960_SOFT_ST |
612 WM8960_BUFDCOPEN);
613 break;
614
615 default:
616 break;
617 }
618 break;
f2644a2c 619
913d7b4c 620 case SND_SOC_BIAS_OFF:
f2644a2c
MB		 621 break;
622 }
623
624 codec->bias_level = level;
625
626 return 0;
627}
628
629/* PLL divisors */
630struct _pll_div {
631 u32 pre_div:1;
632 u32 n:4;
633 u32 k:24;
634};
635
636/* The size in bits of the pll divide multiplied by 10
637 * to allow rounding later */
638#define FIXED_PLL_SIZE ((1 << 24) * 10)
639
640static int pll_factors(unsigned int source, unsigned int target,
641 struct _pll_div *pll_div)
642{
643 unsigned long long Kpart;
644 unsigned int K, Ndiv, Nmod;
645
646 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
647
648 /* Scale up target to PLL operating frequency */
649 target *= 4;
650
651 Ndiv = target / source;
652 if (Ndiv < 6) {
653 source >>= 1;
654 pll_div->pre_div = 1;
655 Ndiv = target / source;
656 } else
657 pll_div->pre_div = 0;
658
659 if ((Ndiv < 6) || (Ndiv > 12)) {
660 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
661 return -EINVAL;
662 }
663
664 pll_div->n = Ndiv;
665 Nmod = target % source;
666 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
667
668 do_div(Kpart, source);
669
670 K = Kpart & 0xFFFFFFFF;
671
672 /* Check if we need to round */
673 if ((K % 10) >= 5)
674 K += 5;
675
676 /* Move down to proper range now rounding is done */
677 K /= 10;
678
679 pll_div->k = K;
680
681 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
682 pll_div->n, pll_div->k, pll_div->pre_div);
683
684 return 0;
685}
686
85488037
MB		 687static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
688 int source, unsigned int freq_in, unsigned int freq_out)
f2644a2c
MB		 689{
690 struct snd_soc_codec *codec = codec_dai->codec;
691 u16 reg;
692 static struct _pll_div pll_div;
693 int ret;
694
695 if (freq_in && freq_out) {
696 ret = pll_factors(freq_in, freq_out, &pll_div);
697 if (ret != 0)
698 return ret;
699 }
700
701 /* Disable the PLL: even if we are changing the frequency the
702 * PLL needs to be disabled while we do so. */
17a52fd6
MB		 703 snd_soc_write(codec, WM8960_CLOCK1,
704 snd_soc_read(codec, WM8960_CLOCK1) & ~1);
705 snd_soc_write(codec, WM8960_POWER2,
706 snd_soc_read(codec, WM8960_POWER2) & ~1);
f2644a2c
MB		 707
708 if (!freq_in || !freq_out)
709 return 0;
710
17a52fd6 711 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
f2644a2c
MB		 712 reg |= pll_div.pre_div << 4;
713 reg |= pll_div.n;
714
715 if (pll_div.k) {
716 reg |= 0x20;
717
17a52fd6
MB		 718 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
719 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
720 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
f2644a2c 721 }
17a52fd6 722 snd_soc_write(codec, WM8960_PLL1, reg);
f2644a2c
MB		 723
724 /* Turn it on */
17a52fd6
MB		 725 snd_soc_write(codec, WM8960_POWER2,
726 snd_soc_read(codec, WM8960_POWER2) | 1);
f2644a2c 727 msleep(250);
17a52fd6
MB		 728 snd_soc_write(codec, WM8960_CLOCK1,
729 snd_soc_read(codec, WM8960_CLOCK1) | 1);
f2644a2c
MB		 730
731 return 0;
732}
733
734static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
735 int div_id, int div)
736{
737 struct snd_soc_codec *codec = codec_dai->codec;
738 u16 reg;
739
740 switch (div_id) {
741 case WM8960_SYSCLKSEL:
17a52fd6
MB		 742 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1fe;
743 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
f2644a2c
MB		 744 break;
745 case WM8960_SYSCLKDIV:
17a52fd6
MB		 746 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
747 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
f2644a2c
MB		 748 break;
749 case WM8960_DACDIV:
17a52fd6
MB		 750 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
751 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
f2644a2c
MB		 752 break;
753 case WM8960_OPCLKDIV:
17a52fd6
MB		 754 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
755 snd_soc_write(codec, WM8960_PLL1, reg | div);
f2644a2c
MB		 756 break;
757 case WM8960_DCLKDIV:
17a52fd6
MB		 758 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
759 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
f2644a2c
MB		 760 break;
761 case WM8960_TOCLKSEL:
17a52fd6
MB		 762 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
763 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
f2644a2c
MB		 764 break;
765 default:
766 return -EINVAL;
767 }
768
769 return 0;
770}
771
772#define WM8960_RATES SNDRV_PCM_RATE_8000_48000
773
774#define WM8960_FORMATS \
775 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
776 SNDRV_PCM_FMTBIT_S24_LE)
777
778static struct snd_soc_dai_ops wm8960_dai_ops = {
779 .hw_params = wm8960_hw_params,
780 .digital_mute = wm8960_mute,
781 .set_fmt = wm8960_set_dai_fmt,
782 .set_clkdiv = wm8960_set_dai_clkdiv,
783 .set_pll = wm8960_set_dai_pll,
784};
785
786struct snd_soc_dai wm8960_dai = {
787 .name = "WM8960",
788 .playback = {
789 .stream_name = "Playback",
790 .channels_min = 1,
791 .channels_max = 2,
792 .rates = WM8960_RATES,
793 .formats = WM8960_FORMATS,},
794 .capture = {
795 .stream_name = "Capture",
796 .channels_min = 1,
797 .channels_max = 2,
798 .rates = WM8960_RATES,
799 .formats = WM8960_FORMATS,},
800 .ops = &wm8960_dai_ops,
801 .symmetric_rates = 1,
802};
803EXPORT_SYMBOL_GPL(wm8960_dai);
804
805static int wm8960_suspend(struct platform_device *pdev, pm_message_t state)
806{
807 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
808 struct snd_soc_codec *codec = socdev->card->codec;
809
913d7b4c 810 codec->set_bias_level(codec, SND_SOC_BIAS_OFF);
f2644a2c
MB		 811 return 0;
812}
813
814static int wm8960_resume(struct platform_device *pdev)
815{
816 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
817 struct snd_soc_codec *codec = socdev->card->codec;
818 int i;
819 u8 data[2];
820 u16 *cache = codec->reg_cache;
821
822 /* Sync reg_cache with the hardware */
823 for (i = 0; i < ARRAY_SIZE(wm8960_reg); i++) {
824 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
825 data[1] = cache[i] & 0x00ff;
826 codec->hw_write(codec->control_data, data, 2);
827 }
828
913d7b4c
MB		 829 codec->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
830 codec->set_bias_level(codec, codec->suspend_bias_level);
f2644a2c
MB		 831 return 0;
832}
833
834static struct snd_soc_codec *wm8960_codec;
835
836static int wm8960_probe(struct platform_device *pdev)
837{
838 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
839 struct snd_soc_codec *codec;
840 int ret = 0;
841
842 if (wm8960_codec == NULL) {
843 dev_err(&pdev->dev, "Codec device not registered\n");
844 return -ENODEV;
845 }
846
847 socdev->card->codec = wm8960_codec;
848 codec = wm8960_codec;
849
850 /* register pcms */
851 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
852 if (ret < 0) {
853 dev_err(codec->dev, "failed to create pcms: %d\n", ret);
854 goto pcm_err;
855 }
856
857 snd_soc_add_controls(codec, wm8960_snd_controls,
858 ARRAY_SIZE(wm8960_snd_controls));
859 wm8960_add_widgets(codec);
f2644a2c
MB		 860
861 return ret;
862
f2644a2c
MB		 863pcm_err:
864 return ret;
865}
866
867/* power down chip */
868static int wm8960_remove(struct platform_device *pdev)
869{
870 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
871
872 snd_soc_free_pcms(socdev);
873 snd_soc_dapm_free(socdev);
874
875 return 0;
876}
877
878struct snd_soc_codec_device soc_codec_dev_wm8960 = {
879 .probe = wm8960_probe,
880 .remove = wm8960_remove,
881 .suspend = wm8960_suspend,
882 .resume = wm8960_resume,
883};
884EXPORT_SYMBOL_GPL(soc_codec_dev_wm8960);
885
7084a42b
MB		 886static int wm8960_register(struct wm8960_priv *wm8960,
887 enum snd_soc_control_type control)
f2644a2c
MB		 888{
889 struct wm8960_data *pdata = wm8960->codec.dev->platform_data;
890 struct snd_soc_codec *codec = &wm8960->codec;
891 int ret;
892 u16 reg;
893
894 if (wm8960_codec) {
895 dev_err(codec->dev, "Another WM8960 is registered\n");
1a01417e
MB		 896 ret = -EINVAL;
897 goto err;
f2644a2c
MB		 898 }
899
913d7b4c
MB		 900 codec->set_bias_level = wm8960_set_bias_level_out3;
901
f2644a2c
MB		 902 if (!pdata) {
903 dev_warn(codec->dev, "No platform data supplied\n");
904 } else {
905 if (pdata->dres > WM8960_DRES_MAX) {
906 dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres);
907 pdata->dres = 0;
908 }
913d7b4c
MB		 909
910 if (pdata->capless)
911 codec->set_bias_level = wm8960_set_bias_level_capless;
f2644a2c
MB		 912 }
913
914 mutex_init(&codec->mutex);
915 INIT_LIST_HEAD(&codec->dapm_widgets);
916 INIT_LIST_HEAD(&codec->dapm_paths);
917
918 codec->private_data = wm8960;
919 codec->name = "WM8960";
920 codec->owner = THIS_MODULE;
f2644a2c 921 codec->bias_level = SND_SOC_BIAS_OFF;
f2644a2c
MB		 922 codec->dai = &wm8960_dai;
923 codec->num_dai = 1;
924 codec->reg_cache_size = WM8960_CACHEREGNUM;
925 codec->reg_cache = &wm8960->reg_cache;
926
927 memcpy(codec->reg_cache, wm8960_reg, sizeof(wm8960_reg));
928
7084a42b 929 ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
17a52fd6
MB		 930 if (ret < 0) {
931 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
932 goto err;
933 }
934
f2644a2c
MB		 935 ret = wm8960_reset(codec);
936 if (ret < 0) {
937 dev_err(codec->dev, "Failed to issue reset\n");
1a01417e 938 goto err;
f2644a2c
MB		 939 }
940
941 wm8960_dai.dev = codec->dev;
942
913d7b4c 943 codec->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
f2644a2c
MB		 944
945 /* Latch the update bits */
17a52fd6
MB		 946 reg = snd_soc_read(codec, WM8960_LINVOL);
947 snd_soc_write(codec, WM8960_LINVOL, reg | 0x100);
948 reg = snd_soc_read(codec, WM8960_RINVOL);
949 snd_soc_write(codec, WM8960_RINVOL, reg | 0x100);
950 reg = snd_soc_read(codec, WM8960_LADC);
951 snd_soc_write(codec, WM8960_LADC, reg | 0x100);
952 reg = snd_soc_read(codec, WM8960_RADC);
953 snd_soc_write(codec, WM8960_RADC, reg | 0x100);
954 reg = snd_soc_read(codec, WM8960_LDAC);
955 snd_soc_write(codec, WM8960_LDAC, reg | 0x100);
956 reg = snd_soc_read(codec, WM8960_RDAC);
957 snd_soc_write(codec, WM8960_RDAC, reg | 0x100);
958 reg = snd_soc_read(codec, WM8960_LOUT1);
959 snd_soc_write(codec, WM8960_LOUT1, reg | 0x100);
960 reg = snd_soc_read(codec, WM8960_ROUT1);
961 snd_soc_write(codec, WM8960_ROUT1, reg | 0x100);
962 reg = snd_soc_read(codec, WM8960_LOUT2);
963 snd_soc_write(codec, WM8960_LOUT2, reg | 0x100);
964 reg = snd_soc_read(codec, WM8960_ROUT2);
965 snd_soc_write(codec, WM8960_ROUT2, reg | 0x100);
f2644a2c
MB		 966
967 wm8960_codec = codec;
968
969 ret = snd_soc_register_codec(codec);
970 if (ret != 0) {
971 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
1a01417e 972 goto err;
f2644a2c
MB		 973 }
974
975 ret = snd_soc_register_dai(&wm8960_dai);
976 if (ret != 0) {
977 dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
1a01417e 978 goto err_codec;
f2644a2c
MB		 979 }
980
981 return 0;
1a01417e
MB		 982
983err_codec:
984 snd_soc_unregister_codec(codec);
985err:
986 kfree(wm8960);
987 return ret;
f2644a2c
MB		 988}
989
990static void wm8960_unregister(struct wm8960_priv *wm8960)
991{
913d7b4c 992 wm8960->codec.set_bias_level(&wm8960->codec, SND_SOC_BIAS_OFF);
f2644a2c
MB		 993 snd_soc_unregister_dai(&wm8960_dai);
994 snd_soc_unregister_codec(&wm8960->codec);
995 kfree(wm8960);
996 wm8960_codec = NULL;
997}
998
999static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
1000 const struct i2c_device_id *id)
1001{
1002 struct wm8960_priv *wm8960;
1003 struct snd_soc_codec *codec;
1004
1005 wm8960 = kzalloc(sizeof(struct wm8960_priv), GFP_KERNEL);
1006 if (wm8960 == NULL)
1007 return -ENOMEM;
1008
1009 codec = &wm8960->codec;
f2644a2c
MB		 1010
1011 i2c_set_clientdata(i2c, wm8960);
1012 codec->control_data = i2c;
1013
1014 codec->dev = &i2c->dev;
1015
7084a42b 1016 return wm8960_register(wm8960, SND_SOC_I2C);
f2644a2c
MB		 1017}
1018
1019static __devexit int wm8960_i2c_remove(struct i2c_client *client)
1020{
1021 struct wm8960_priv *wm8960 = i2c_get_clientdata(client);
1022 wm8960_unregister(wm8960);
1023 return 0;
1024}
1025
1026static const struct i2c_device_id wm8960_i2c_id[] = {
1027 { "wm8960", 0 },
1028 { }
1029};
1030MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1031
1032static struct i2c_driver wm8960_i2c_driver = {
1033 .driver = {
a24d62d2 1034 .name = "wm8960",
f2644a2c
MB		 1035 .owner = THIS_MODULE,
1036 },
1037 .probe = wm8960_i2c_probe,
1038 .remove = __devexit_p(wm8960_i2c_remove),
1039 .id_table = wm8960_i2c_id,
1040};
1041
1042static int __init wm8960_modinit(void)
1043{
1044 int ret;
1045
1046 ret = i2c_add_driver(&wm8960_i2c_driver);
1047 if (ret != 0) {
1048 printk(KERN_ERR "Failed to register WM8960 I2C driver: %d\n",
1049 ret);
1050 }
1051
1052 return ret;
1053}
1054module_init(wm8960_modinit);
1055
1056static void __exit wm8960_exit(void)
1057{
1058 i2c_del_driver(&wm8960_i2c_driver);
1059}
1060module_exit(wm8960_exit);
1061
1062
1063MODULE_DESCRIPTION("ASoC WM8960 driver");
1064MODULE_AUTHOR("Liam Girdwood");
1065MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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