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Merge branch 'docs-next' of git://git.lwn.net/linux-2.6
[mirror_ubuntu-hirsute-kernel.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>
5a0e3ad6 18#include <linux/slab.h>
f2644a2c
MB		 19#include <sound/core.h>
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/soc.h>
23#include <sound/soc-dapm.h>
24#include <sound/initval.h>
25#include <sound/tlv.h>
b6877a47 26#include <sound/wm8960.h>
f2644a2c
MB		 27
28#include "wm8960.h"
29
30#define AUDIO_NAME "wm8960"
31
32struct snd_soc_codec_device soc_codec_dev_wm8960;
33
34/* R25 - Power 1 */
913d7b4c 35#define WM8960_VMID_MASK 0x180
f2644a2c
MB		 36#define WM8960_VREF 0x40
37
913d7b4c
MB		 38/* R26 - Power 2 */
39#define WM8960_PWR2_LOUT1 0x40
40#define WM8960_PWR2_ROUT1 0x20
41#define WM8960_PWR2_OUT3 0x02
42
f2644a2c
MB		 43/* R28 - Anti-pop 1 */
44#define WM8960_POBCTRL 0x80
45#define WM8960_BUFDCOPEN 0x10
46#define WM8960_BUFIOEN 0x08
47#define WM8960_SOFT_ST 0x04
48#define WM8960_HPSTBY 0x01
49
50/* R29 - Anti-pop 2 */
51#define WM8960_DISOP 0x40
913d7b4c 52#define WM8960_DRES_MASK 0x30
f2644a2c
MB		 53
54/*
55 * wm8960 register cache
56 * We can't read the WM8960 register space when we are
57 * using 2 wire for device control, so we cache them instead.
58 */
59static const u16 wm8960_reg[WM8960_CACHEREGNUM] = {
60 0x0097, 0x0097, 0x0000, 0x0000,
61 0x0000, 0x0008, 0x0000, 0x000a,
62 0x01c0, 0x0000, 0x00ff, 0x00ff,
63 0x0000, 0x0000, 0x0000, 0x0000,
64 0x0000, 0x007b, 0x0100, 0x0032,
65 0x0000, 0x00c3, 0x00c3, 0x01c0,
66 0x0000, 0x0000, 0x0000, 0x0000,
67 0x0000, 0x0000, 0x0000, 0x0000,
68 0x0100, 0x0100, 0x0050, 0x0050,
69 0x0050, 0x0050, 0x0000, 0x0000,
70 0x0000, 0x0000, 0x0040, 0x0000,
71 0x0000, 0x0050, 0x0050, 0x0000,
72 0x0002, 0x0037, 0x004d, 0x0080,
73 0x0008, 0x0031, 0x0026, 0x00e9,
74};
75
76struct wm8960_priv {
77 u16 reg_cache[WM8960_CACHEREGNUM];
78 struct snd_soc_codec codec;
913d7b4c
MB		 79 struct snd_soc_dapm_widget *lout1;
80 struct snd_soc_dapm_widget *rout1;
81 struct snd_soc_dapm_widget *out3;
f2644a2c
MB		 82};
83
17a52fd6 84#define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
f2644a2c
MB		 85
86/* enumerated controls */
87static const char *wm8960_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
88static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
89 "Right Inverted", "Stereo Inversion"};
90static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
91static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
92static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
93static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
94
95static const struct soc_enum wm8960_enum[] = {
96 SOC_ENUM_SINGLE(WM8960_DACCTL1, 1, 4, wm8960_deemph),
97 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
98 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
99 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
100 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
101 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
102 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
103};
104
105static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
106static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
107static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
108static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
109
110static const struct snd_kcontrol_new wm8960_snd_controls[] = {
111SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
112 0, 63, 0, adc_tlv),
113SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
114 6, 1, 0),
115SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
116 7, 1, 0),
117
118SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
119 0, 255, 0, dac_tlv),
120
121SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
122 0, 127, 0, out_tlv),
123SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
124 7, 1, 0),
125
126SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
127 0, 127, 0, out_tlv),
128SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
129 7, 1, 0),
130SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
131SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
132
133SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
134SOC_ENUM("ADC Polarity", wm8960_enum[1]),
135SOC_ENUM("Playback De-emphasis", wm8960_enum[0]),
136SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
137
138SOC_ENUM("DAC Polarity", wm8960_enum[2]),
139
140SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[3]),
141SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[4]),
142SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
143SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
144
145SOC_ENUM("ALC Function", wm8960_enum[5]),
146SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
147SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
148SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
149SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
150SOC_ENUM("ALC Mode", wm8960_enum[6]),
151SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
152SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
153
154SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
155SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
156
157SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
158 0, 127, 0),
159
160SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
161 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
162SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
163 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
164SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
165 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
166SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
167 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
168};
169
170static const struct snd_kcontrol_new wm8960_lin_boost[] = {
171SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
172SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
173SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
174};
175
176static const struct snd_kcontrol_new wm8960_lin[] = {
177SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
178};
179
180static const struct snd_kcontrol_new wm8960_rin_boost[] = {
181SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
182SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
183SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
184};
185
186static const struct snd_kcontrol_new wm8960_rin[] = {
187SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
188};
189
190static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
191SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
192SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
193SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
194};
195
196static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
197SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
198SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
199SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
200};
201
202static const struct snd_kcontrol_new wm8960_mono_out[] = {
203SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
204SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
205};
206
207static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
208SND_SOC_DAPM_INPUT("LINPUT1"),
209SND_SOC_DAPM_INPUT("RINPUT1"),
210SND_SOC_DAPM_INPUT("LINPUT2"),
211SND_SOC_DAPM_INPUT("RINPUT2"),
212SND_SOC_DAPM_INPUT("LINPUT3"),
213SND_SOC_DAPM_INPUT("RINPUT3"),
214
215SND_SOC_DAPM_MICBIAS("MICB", WM8960_POWER1, 1, 0),
216
217SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
218 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
219SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
220 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
221
222SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
223 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
224SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
225 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
226
227SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0),
228SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0),
229
230SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
231SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
232
233SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
234 &wm8960_loutput_mixer[0],
235 ARRAY_SIZE(wm8960_loutput_mixer)),
236SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
237 &wm8960_routput_mixer[0],
238 ARRAY_SIZE(wm8960_routput_mixer)),
239
f2644a2c
MB		 240SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
241SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
242
243SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
244SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
245
246SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
247SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
248
249SND_SOC_DAPM_OUTPUT("SPK_LP"),
250SND_SOC_DAPM_OUTPUT("SPK_LN"),
251SND_SOC_DAPM_OUTPUT("HP_L"),
252SND_SOC_DAPM_OUTPUT("HP_R"),
253SND_SOC_DAPM_OUTPUT("SPK_RP"),
254SND_SOC_DAPM_OUTPUT("SPK_RN"),
255SND_SOC_DAPM_OUTPUT("OUT3"),
256};
257
913d7b4c
MB		 258static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
259SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
260 &wm8960_mono_out[0],
261 ARRAY_SIZE(wm8960_mono_out)),
262};
263
264/* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
265static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
266SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
267};
268
f2644a2c
MB		 269static const struct snd_soc_dapm_route audio_paths[] = {
270 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
271 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
272 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
273
274 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
275 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
276 { "Left Input Mixer", NULL, "LINPUT2" },
277 { "Left Input Mixer", NULL, "LINPUT3" },
278
279 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
280 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
281 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
282
283 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
284 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
285 { "Right Input Mixer", NULL, "RINPUT2" },
286 { "Right Input Mixer", NULL, "LINPUT3" },
287
288 { "Left ADC", NULL, "Left Input Mixer" },
289 { "Right ADC", NULL, "Right Input Mixer" },
290
291 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
292 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
293 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
294
295 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
296 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
297 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
298
f2644a2c
MB		 299 { "LOUT1 PGA", NULL, "Left Output Mixer" },
300 { "ROUT1 PGA", NULL, "Right Output Mixer" },
301
302 { "HP_L", NULL, "LOUT1 PGA" },
303 { "HP_R", NULL, "ROUT1 PGA" },
304
305 { "Left Speaker PGA", NULL, "Left Output Mixer" },
306 { "Right Speaker PGA", NULL, "Right Output Mixer" },
307
308 { "Left Speaker Output", NULL, "Left Speaker PGA" },
309 { "Right Speaker Output", NULL, "Right Speaker PGA" },
310
311 { "SPK_LN", NULL, "Left Speaker Output" },
312 { "SPK_LP", NULL, "Left Speaker Output" },
313 { "SPK_RN", NULL, "Right Speaker Output" },
314 { "SPK_RP", NULL, "Right Speaker Output" },
913d7b4c
MB		 315};
316
317static const struct snd_soc_dapm_route audio_paths_out3[] = {
318 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
319 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
f2644a2c
MB		 320
321 { "OUT3", NULL, "Mono Output Mixer", }
322};
323
913d7b4c
MB		 324static const struct snd_soc_dapm_route audio_paths_capless[] = {
325 { "HP_L", NULL, "OUT3 VMID" },
326 { "HP_R", NULL, "OUT3 VMID" },
327
328 { "OUT3 VMID", NULL, "Left Output Mixer" },
329 { "OUT3 VMID", NULL, "Right Output Mixer" },
330};
331
f2644a2c
MB		 332static int wm8960_add_widgets(struct snd_soc_codec *codec)
333{
913d7b4c 334 struct wm8960_data *pdata = codec->dev->platform_data;
b2c812e2 335 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
913d7b4c
MB		 336 struct snd_soc_dapm_widget *w;
337
f2644a2c
MB		 338 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets,
339 ARRAY_SIZE(wm8960_dapm_widgets));
340
341 snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
342
913d7b4c
MB		 343 /* In capless mode OUT3 is used to provide VMID for the
344 * headphone outputs, otherwise it is used as a mono mixer.
345 */
346 if (pdata && pdata->capless) {
347 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets_capless,
348 ARRAY_SIZE(wm8960_dapm_widgets_capless));
349
350 snd_soc_dapm_add_routes(codec, audio_paths_capless,
351 ARRAY_SIZE(audio_paths_capless));
352 } else {
353 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets_out3,
354 ARRAY_SIZE(wm8960_dapm_widgets_out3));
355
356 snd_soc_dapm_add_routes(codec, audio_paths_out3,
357 ARRAY_SIZE(audio_paths_out3));
358 }
359
360 /* We need to power up the headphone output stage out of
361 * sequence for capless mode. To save scanning the widget
362 * list each time to find the desired power state do so now
363 * and save the result.
364 */
365 list_for_each_entry(w, &codec->dapm_widgets, list) {
366 if (strcmp(w->name, "LOUT1 PGA") == 0)
367 wm8960->lout1 = w;
368 if (strcmp(w->name, "ROUT1 PGA") == 0)
369 wm8960->rout1 = w;
370 if (strcmp(w->name, "OUT3 VMID") == 0)
371 wm8960->out3 = w;
372 }
373
f2644a2c
MB		 374 return 0;
375}
376
377static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
378 unsigned int fmt)
379{
380 struct snd_soc_codec *codec = codec_dai->codec;
381 u16 iface = 0;
382
383 /* set master/slave audio interface */
384 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
385 case SND_SOC_DAIFMT_CBM_CFM:
386 iface |= 0x0040;
387 break;
388 case SND_SOC_DAIFMT_CBS_CFS:
389 break;
390 default:
391 return -EINVAL;
392 }
393
394 /* interface format */
395 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
396 case SND_SOC_DAIFMT_I2S:
397 iface |= 0x0002;
398 break;
399 case SND_SOC_DAIFMT_RIGHT_J:
400 break;
401 case SND_SOC_DAIFMT_LEFT_J:
402 iface |= 0x0001;
403 break;
404 case SND_SOC_DAIFMT_DSP_A:
405 iface |= 0x0003;
406 break;
407 case SND_SOC_DAIFMT_DSP_B:
408 iface |= 0x0013;
409 break;
410 default:
411 return -EINVAL;
412 }
413
414 /* clock inversion */
415 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
416 case SND_SOC_DAIFMT_NB_NF:
417 break;
418 case SND_SOC_DAIFMT_IB_IF:
419 iface |= 0x0090;
420 break;
421 case SND_SOC_DAIFMT_IB_NF:
422 iface |= 0x0080;
423 break;
424 case SND_SOC_DAIFMT_NB_IF:
425 iface |= 0x0010;
426 break;
427 default:
428 return -EINVAL;
429 }
430
431 /* set iface */
17a52fd6 432 snd_soc_write(codec, WM8960_IFACE1, iface);
f2644a2c
MB		 433 return 0;
434}
435
436static int wm8960_hw_params(struct snd_pcm_substream *substream,
437 struct snd_pcm_hw_params *params,
438 struct snd_soc_dai *dai)
439{
440 struct snd_soc_pcm_runtime *rtd = substream->private_data;
441 struct snd_soc_device *socdev = rtd->socdev;
442 struct snd_soc_codec *codec = socdev->card->codec;
17a52fd6 443 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
f2644a2c
MB		 444
445 /* bit size */
446 switch (params_format(params)) {
447 case SNDRV_PCM_FORMAT_S16_LE:
448 break;
449 case SNDRV_PCM_FORMAT_S20_3LE:
450 iface |= 0x0004;
451 break;
452 case SNDRV_PCM_FORMAT_S24_LE:
453 iface |= 0x0008;
454 break;
455 }
456
457 /* set iface */
17a52fd6 458 snd_soc_write(codec, WM8960_IFACE1, iface);
f2644a2c
MB		 459 return 0;
460}
461
462static int wm8960_mute(struct snd_soc_dai *dai, int mute)
463{
464 struct snd_soc_codec *codec = dai->codec;
17a52fd6 465 u16 mute_reg = snd_soc_read(codec, WM8960_DACCTL1) & 0xfff7;
f2644a2c
MB		 466
467 if (mute)
17a52fd6 468 snd_soc_write(codec, WM8960_DACCTL1, mute_reg | 0x8);
f2644a2c 469 else
17a52fd6 470 snd_soc_write(codec, WM8960_DACCTL1, mute_reg);
f2644a2c
MB		 471 return 0;
472}
473
913d7b4c
MB		 474static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
475 enum snd_soc_bias_level level)
f2644a2c 476{
f2644a2c
MB		 477 u16 reg;
478
479 switch (level) {
480 case SND_SOC_BIAS_ON:
481 break;
482
483 case SND_SOC_BIAS_PREPARE:
484 /* Set VMID to 2x50k */
17a52fd6 485 reg = snd_soc_read(codec, WM8960_POWER1);
f2644a2c
MB		 486 reg &= ~0x180;
487 reg |= 0x80;
17a52fd6 488 snd_soc_write(codec, WM8960_POWER1, reg);
f2644a2c
MB		 489 break;
490
491 case SND_SOC_BIAS_STANDBY:
492 if (codec->bias_level == SND_SOC_BIAS_OFF) {
493 /* Enable anti-pop features */
17a52fd6 494 snd_soc_write(codec, WM8960_APOP1,
913d7b4c
MB		 495 WM8960_POBCTRL | WM8960_SOFT_ST |
496 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
f2644a2c
MB		 497
498 /* Enable & ramp VMID at 2x50k */
17a52fd6 499 reg = snd_soc_read(codec, WM8960_POWER1);
f2644a2c 500 reg |= 0x80;
17a52fd6 501 snd_soc_write(codec, WM8960_POWER1, reg);
f2644a2c
MB		 502 msleep(100);
503
504 /* Enable VREF */
17a52fd6 505 snd_soc_write(codec, WM8960_POWER1, reg | WM8960_VREF);
f2644a2c
MB		 506
507 /* Disable anti-pop features */
17a52fd6 508 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
f2644a2c
MB		 509 }
510
511 /* Set VMID to 2x250k */
17a52fd6 512 reg = snd_soc_read(codec, WM8960_POWER1);
f2644a2c
MB		 513 reg &= ~0x180;
514 reg |= 0x100;
17a52fd6 515 snd_soc_write(codec, WM8960_POWER1, reg);
f2644a2c
MB		 516 break;
517
518 case SND_SOC_BIAS_OFF:
519 /* Enable anti-pop features */
17a52fd6 520 snd_soc_write(codec, WM8960_APOP1,
f2644a2c
MB		 521 WM8960_POBCTRL | WM8960_SOFT_ST |
522 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
523
524 /* Disable VMID and VREF, let them discharge */
17a52fd6 525 snd_soc_write(codec, WM8960_POWER1, 0);
f2644a2c 526 msleep(600);
913d7b4c
MB		 527 break;
528 }
529
530 codec->bias_level = level;
531
532 return 0;
533}
534
535static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
536 enum snd_soc_bias_level level)
537{
b2c812e2 538 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
913d7b4c
MB		 539 int reg;
540
541 switch (level) {
542 case SND_SOC_BIAS_ON:
543 break;
544
545 case SND_SOC_BIAS_PREPARE:
546 switch (codec->bias_level) {
547 case SND_SOC_BIAS_STANDBY:
548 /* Enable anti pop mode */
549 snd_soc_update_bits(codec, WM8960_APOP1,
550 WM8960_POBCTRL | WM8960_SOFT_ST |
551 WM8960_BUFDCOPEN,
552 WM8960_POBCTRL | WM8960_SOFT_ST |
553 WM8960_BUFDCOPEN);
554
555 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
556 reg = 0;
557 if (wm8960->lout1 && wm8960->lout1->power)
558 reg |= WM8960_PWR2_LOUT1;
559 if (wm8960->rout1 && wm8960->rout1->power)
560 reg |= WM8960_PWR2_ROUT1;
561 if (wm8960->out3 && wm8960->out3->power)
562 reg |= WM8960_PWR2_OUT3;
563 snd_soc_update_bits(codec, WM8960_POWER2,
564 WM8960_PWR2_LOUT1 |
565 WM8960_PWR2_ROUT1 |
566 WM8960_PWR2_OUT3, reg);
567
568 /* Enable VMID at 2*50k */
569 snd_soc_update_bits(codec, WM8960_POWER1,
570 WM8960_VMID_MASK, 0x80);
571
572 /* Ramp */
573 msleep(100);
574
575 /* Enable VREF */
576 snd_soc_update_bits(codec, WM8960_POWER1,
577 WM8960_VREF, WM8960_VREF);
578
579 msleep(100);
580 break;
581
582 case SND_SOC_BIAS_ON:
583 /* Enable anti-pop mode */
584 snd_soc_update_bits(codec, WM8960_APOP1,
585 WM8960_POBCTRL | WM8960_SOFT_ST |
586 WM8960_BUFDCOPEN,
587 WM8960_POBCTRL | WM8960_SOFT_ST |
588 WM8960_BUFDCOPEN);
589
590 /* Disable VMID and VREF */
591 snd_soc_update_bits(codec, WM8960_POWER1,
592 WM8960_VREF | WM8960_VMID_MASK, 0);
593 break;
594
595 default:
596 break;
597 }
598 break;
f2644a2c 599
913d7b4c
MB		 600 case SND_SOC_BIAS_STANDBY:
601 switch (codec->bias_level) {
602 case SND_SOC_BIAS_PREPARE:
603 /* Disable HP discharge */
604 snd_soc_update_bits(codec, WM8960_APOP2,
605 WM8960_DISOP | WM8960_DRES_MASK,
606 0);
607
608 /* Disable anti-pop features */
609 snd_soc_update_bits(codec, WM8960_APOP1,
610 WM8960_POBCTRL | WM8960_SOFT_ST |
611 WM8960_BUFDCOPEN,
612 WM8960_POBCTRL | WM8960_SOFT_ST |
613 WM8960_BUFDCOPEN);
614 break;
615
616 default:
617 break;
618 }
619 break;
f2644a2c 620
913d7b4c 621 case SND_SOC_BIAS_OFF:
f2644a2c
MB		 622 break;
623 }
624
625 codec->bias_level = level;
626
627 return 0;
628}
629
630/* PLL divisors */
631struct _pll_div {
632 u32 pre_div:1;
633 u32 n:4;
634 u32 k:24;
635};
636
637/* The size in bits of the pll divide multiplied by 10
638 * to allow rounding later */
639#define FIXED_PLL_SIZE ((1 << 24) * 10)
640
641static int pll_factors(unsigned int source, unsigned int target,
642 struct _pll_div *pll_div)
643{
644 unsigned long long Kpart;
645 unsigned int K, Ndiv, Nmod;
646
647 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
648
649 /* Scale up target to PLL operating frequency */
650 target *= 4;
651
652 Ndiv = target / source;
653 if (Ndiv < 6) {
654 source >>= 1;
655 pll_div->pre_div = 1;
656 Ndiv = target / source;
657 } else
658 pll_div->pre_div = 0;
659
660 if ((Ndiv < 6) || (Ndiv > 12)) {
661 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
662 return -EINVAL;
663 }
664
665 pll_div->n = Ndiv;
666 Nmod = target % source;
667 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
668
669 do_div(Kpart, source);
670
671 K = Kpart & 0xFFFFFFFF;
672
673 /* Check if we need to round */
674 if ((K % 10) >= 5)
675 K += 5;
676
677 /* Move down to proper range now rounding is done */
678 K /= 10;
679
680 pll_div->k = K;
681
682 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
683 pll_div->n, pll_div->k, pll_div->pre_div);
684
685 return 0;
686}
687
85488037
MB		 688static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
689 int source, unsigned int freq_in, unsigned int freq_out)
f2644a2c
MB		 690{
691 struct snd_soc_codec *codec = codec_dai->codec;
692 u16 reg;
693 static struct _pll_div pll_div;
694 int ret;
695
696 if (freq_in && freq_out) {
697 ret = pll_factors(freq_in, freq_out, &pll_div);
698 if (ret != 0)
699 return ret;
700 }
701
702 /* Disable the PLL: even if we are changing the frequency the
703 * PLL needs to be disabled while we do so. */
17a52fd6
MB		 704 snd_soc_write(codec, WM8960_CLOCK1,
705 snd_soc_read(codec, WM8960_CLOCK1) & ~1);
706 snd_soc_write(codec, WM8960_POWER2,
707 snd_soc_read(codec, WM8960_POWER2) & ~1);
f2644a2c
MB		 708
709 if (!freq_in || !freq_out)
710 return 0;
711
17a52fd6 712 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
f2644a2c
MB		 713 reg |= pll_div.pre_div << 4;
714 reg |= pll_div.n;
715
716 if (pll_div.k) {
717 reg |= 0x20;
718
17a52fd6
MB		 719 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
720 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
721 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
f2644a2c 722 }
17a52fd6 723 snd_soc_write(codec, WM8960_PLL1, reg);
f2644a2c
MB		 724
725 /* Turn it on */
17a52fd6
MB		 726 snd_soc_write(codec, WM8960_POWER2,
727 snd_soc_read(codec, WM8960_POWER2) | 1);
f2644a2c 728 msleep(250);
17a52fd6
MB		 729 snd_soc_write(codec, WM8960_CLOCK1,
730 snd_soc_read(codec, WM8960_CLOCK1) | 1);
f2644a2c
MB		 731
732 return 0;
733}
734
735static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
736 int div_id, int div)
737{
738 struct snd_soc_codec *codec = codec_dai->codec;
739 u16 reg;
740
741 switch (div_id) {
f2644a2c 742 case WM8960_SYSCLKDIV:
17a52fd6
MB		 743 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
744 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
f2644a2c
MB		 745 break;
746 case WM8960_DACDIV:
17a52fd6
MB		 747 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
748 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
f2644a2c
MB		 749 break;
750 case WM8960_OPCLKDIV:
17a52fd6
MB		 751 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
752 snd_soc_write(codec, WM8960_PLL1, reg | div);
f2644a2c
MB		 753 break;
754 case WM8960_DCLKDIV:
17a52fd6
MB		 755 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
756 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
f2644a2c
MB		 757 break;
758 case WM8960_TOCLKSEL:
17a52fd6
MB		 759 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
760 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
f2644a2c
MB		 761 break;
762 default:
763 return -EINVAL;
764 }
765
766 return 0;
767}
768
769#define WM8960_RATES SNDRV_PCM_RATE_8000_48000
770
771#define WM8960_FORMATS \
772 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
773 SNDRV_PCM_FMTBIT_S24_LE)
774
775static struct snd_soc_dai_ops wm8960_dai_ops = {
776 .hw_params = wm8960_hw_params,
777 .digital_mute = wm8960_mute,
778 .set_fmt = wm8960_set_dai_fmt,
779 .set_clkdiv = wm8960_set_dai_clkdiv,
780 .set_pll = wm8960_set_dai_pll,
781};
782
783struct snd_soc_dai wm8960_dai = {
784 .name = "WM8960",
785 .playback = {
786 .stream_name = "Playback",
787 .channels_min = 1,
788 .channels_max = 2,
789 .rates = WM8960_RATES,
790 .formats = WM8960_FORMATS,},
791 .capture = {
792 .stream_name = "Capture",
793 .channels_min = 1,
794 .channels_max = 2,
795 .rates = WM8960_RATES,
796 .formats = WM8960_FORMATS,},
797 .ops = &wm8960_dai_ops,
798 .symmetric_rates = 1,
799};
800EXPORT_SYMBOL_GPL(wm8960_dai);
801
802static int wm8960_suspend(struct platform_device *pdev, pm_message_t state)
803{
804 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
805 struct snd_soc_codec *codec = socdev->card->codec;
806
913d7b4c 807 codec->set_bias_level(codec, SND_SOC_BIAS_OFF);
f2644a2c
MB		 808 return 0;
809}
810
811static int wm8960_resume(struct platform_device *pdev)
812{
813 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
814 struct snd_soc_codec *codec = socdev->card->codec;
815 int i;
816 u8 data[2];
817 u16 *cache = codec->reg_cache;
818
819 /* Sync reg_cache with the hardware */
820 for (i = 0; i < ARRAY_SIZE(wm8960_reg); i++) {
821 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
822 data[1] = cache[i] & 0x00ff;
823 codec->hw_write(codec->control_data, data, 2);
824 }
825
913d7b4c 826 codec->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
29e189c2 827
f2644a2c
MB		 828 return 0;
829}
830
831static struct snd_soc_codec *wm8960_codec;
832
833static int wm8960_probe(struct platform_device *pdev)
834{
835 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
836 struct snd_soc_codec *codec;
837 int ret = 0;
838
839 if (wm8960_codec == NULL) {
840 dev_err(&pdev->dev, "Codec device not registered\n");
841 return -ENODEV;
842 }
843
844 socdev->card->codec = wm8960_codec;
845 codec = wm8960_codec;
846
847 /* register pcms */
848 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
849 if (ret < 0) {
850 dev_err(codec->dev, "failed to create pcms: %d\n", ret);
851 goto pcm_err;
852 }
853
854 snd_soc_add_controls(codec, wm8960_snd_controls,
855 ARRAY_SIZE(wm8960_snd_controls));
856 wm8960_add_widgets(codec);
f2644a2c
MB		 857
858 return ret;
859
f2644a2c
MB		 860pcm_err:
861 return ret;
862}
863
864/* power down chip */
865static int wm8960_remove(struct platform_device *pdev)
866{
867 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
868
869 snd_soc_free_pcms(socdev);
870 snd_soc_dapm_free(socdev);
871
872 return 0;
873}
874
875struct snd_soc_codec_device soc_codec_dev_wm8960 = {
876 .probe = wm8960_probe,
877 .remove = wm8960_remove,
878 .suspend = wm8960_suspend,
879 .resume = wm8960_resume,
880};
881EXPORT_SYMBOL_GPL(soc_codec_dev_wm8960);
882
7084a42b
MB		 883static int wm8960_register(struct wm8960_priv *wm8960,
884 enum snd_soc_control_type control)
f2644a2c
MB		 885{
886 struct wm8960_data *pdata = wm8960->codec.dev->platform_data;
887 struct snd_soc_codec *codec = &wm8960->codec;
888 int ret;
889 u16 reg;
890
891 if (wm8960_codec) {
892 dev_err(codec->dev, "Another WM8960 is registered\n");
1a01417e
MB		 893 ret = -EINVAL;
894 goto err;
f2644a2c
MB		 895 }
896
913d7b4c
MB		 897 codec->set_bias_level = wm8960_set_bias_level_out3;
898
f2644a2c
MB		 899 if (!pdata) {
900 dev_warn(codec->dev, "No platform data supplied\n");
901 } else {
902 if (pdata->dres > WM8960_DRES_MAX) {
903 dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres);
904 pdata->dres = 0;
905 }
913d7b4c
MB		 906
907 if (pdata->capless)
908 codec->set_bias_level = wm8960_set_bias_level_capless;
f2644a2c
MB		 909 }
910
911 mutex_init(&codec->mutex);
912 INIT_LIST_HEAD(&codec->dapm_widgets);
913 INIT_LIST_HEAD(&codec->dapm_paths);
914
b2c812e2 915 snd_soc_codec_set_drvdata(codec, wm8960);
f2644a2c
MB		 916 codec->name = "WM8960";
917 codec->owner = THIS_MODULE;
f2644a2c 918 codec->bias_level = SND_SOC_BIAS_OFF;
f2644a2c
MB		 919 codec->dai = &wm8960_dai;
920 codec->num_dai = 1;
921 codec->reg_cache_size = WM8960_CACHEREGNUM;
922 codec->reg_cache = &wm8960->reg_cache;
923
924 memcpy(codec->reg_cache, wm8960_reg, sizeof(wm8960_reg));
925
7084a42b 926 ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
17a52fd6
MB		 927 if (ret < 0) {
928 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
929 goto err;
930 }
931
f2644a2c
MB		 932 ret = wm8960_reset(codec);
933 if (ret < 0) {
934 dev_err(codec->dev, "Failed to issue reset\n");
1a01417e 935 goto err;
f2644a2c
MB		 936 }
937
938 wm8960_dai.dev = codec->dev;
939
913d7b4c 940 codec->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
f2644a2c
MB		 941
942 /* Latch the update bits */
17a52fd6
MB		 943 reg = snd_soc_read(codec, WM8960_LINVOL);
944 snd_soc_write(codec, WM8960_LINVOL, reg | 0x100);
945 reg = snd_soc_read(codec, WM8960_RINVOL);
946 snd_soc_write(codec, WM8960_RINVOL, reg | 0x100);
947 reg = snd_soc_read(codec, WM8960_LADC);
948 snd_soc_write(codec, WM8960_LADC, reg | 0x100);
949 reg = snd_soc_read(codec, WM8960_RADC);
950 snd_soc_write(codec, WM8960_RADC, reg | 0x100);
951 reg = snd_soc_read(codec, WM8960_LDAC);
952 snd_soc_write(codec, WM8960_LDAC, reg | 0x100);
953 reg = snd_soc_read(codec, WM8960_RDAC);
954 snd_soc_write(codec, WM8960_RDAC, reg | 0x100);
955 reg = snd_soc_read(codec, WM8960_LOUT1);
956 snd_soc_write(codec, WM8960_LOUT1, reg | 0x100);
957 reg = snd_soc_read(codec, WM8960_ROUT1);
958 snd_soc_write(codec, WM8960_ROUT1, reg | 0x100);
959 reg = snd_soc_read(codec, WM8960_LOUT2);
960 snd_soc_write(codec, WM8960_LOUT2, reg | 0x100);
961 reg = snd_soc_read(codec, WM8960_ROUT2);
962 snd_soc_write(codec, WM8960_ROUT2, reg | 0x100);
f2644a2c
MB		 963
964 wm8960_codec = codec;
965
966 ret = snd_soc_register_codec(codec);
967 if (ret != 0) {
968 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
1a01417e 969 goto err;
f2644a2c
MB		 970 }
971
972 ret = snd_soc_register_dai(&wm8960_dai);
973 if (ret != 0) {
974 dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
1a01417e 975 goto err_codec;
f2644a2c
MB		 976 }
977
978 return 0;
1a01417e
MB		 979
980err_codec:
981 snd_soc_unregister_codec(codec);
982err:
983 kfree(wm8960);
984 return ret;
f2644a2c
MB		 985}
986
987static void wm8960_unregister(struct wm8960_priv *wm8960)
988{
913d7b4c 989 wm8960->codec.set_bias_level(&wm8960->codec, SND_SOC_BIAS_OFF);
f2644a2c
MB		 990 snd_soc_unregister_dai(&wm8960_dai);
991 snd_soc_unregister_codec(&wm8960->codec);
992 kfree(wm8960);
993 wm8960_codec = NULL;
994}
995
996static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
997 const struct i2c_device_id *id)
998{
999 struct wm8960_priv *wm8960;
1000 struct snd_soc_codec *codec;
1001
1002 wm8960 = kzalloc(sizeof(struct wm8960_priv), GFP_KERNEL);
1003 if (wm8960 == NULL)
1004 return -ENOMEM;
1005
1006 codec = &wm8960->codec;
f2644a2c
MB		 1007
1008 i2c_set_clientdata(i2c, wm8960);
1009 codec->control_data = i2c;
1010
1011 codec->dev = &i2c->dev;
1012
7084a42b 1013 return wm8960_register(wm8960, SND_SOC_I2C);
f2644a2c
MB		 1014}
1015
1016static __devexit int wm8960_i2c_remove(struct i2c_client *client)
1017{
1018 struct wm8960_priv *wm8960 = i2c_get_clientdata(client);
1019 wm8960_unregister(wm8960);
1020 return 0;
1021}
1022
1023static const struct i2c_device_id wm8960_i2c_id[] = {
1024 { "wm8960", 0 },
1025 { }
1026};
1027MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1028
1029static struct i2c_driver wm8960_i2c_driver = {
1030 .driver = {
a24d62d2 1031 .name = "wm8960",
f2644a2c
MB		 1032 .owner = THIS_MODULE,
1033 },
1034 .probe = wm8960_i2c_probe,
1035 .remove = __devexit_p(wm8960_i2c_remove),
1036 .id_table = wm8960_i2c_id,
1037};
1038
1039static int __init wm8960_modinit(void)
1040{
1041 int ret;
1042
1043 ret = i2c_add_driver(&wm8960_i2c_driver);
1044 if (ret != 0) {
1045 printk(KERN_ERR "Failed to register WM8960 I2C driver: %d\n",
1046 ret);
1047 }
1048
1049 return ret;
1050}
1051module_init(wm8960_modinit);
1052
1053static void __exit wm8960_exit(void)
1054{
1055 i2c_del_driver(&wm8960_i2c_driver);
1056}
1057module_exit(wm8960_exit);
1058
1059
1060MODULE_DESCRIPTION("ASoC WM8960 driver");
1061MODULE_AUTHOR("Liam Girdwood");
1062MODULE_LICENSE("GPL");
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