2 * wm8960.c -- WM8960 ALSA SoC Audio driver
4 * Author: Liam Girdwood
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.
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
16 #include <linux/i2c.h>
17 #include <linux/platform_device.h>
18 #include <linux/slab.h>
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>
26 #include <sound/wm8960.h>
30 #define AUDIO_NAME "wm8960"
32 struct snd_soc_codec_device soc_codec_dev_wm8960;
35 #define WM8960_VMID_MASK 0x180
36 #define WM8960_VREF 0x40
39 #define WM8960_PWR2_LOUT1 0x40
40 #define WM8960_PWR2_ROUT1 0x20
41 #define WM8960_PWR2_OUT3 0x02
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
50 /* R29 - Anti-pop 2 */
51 #define WM8960_DISOP 0x40
52 #define WM8960_DRES_MASK 0x30
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.
59 static 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,
77 u16 reg_cache[WM8960_CACHEREGNUM];
78 struct snd_soc_codec codec;
79 struct snd_soc_dapm_widget *lout1;
80 struct snd_soc_dapm_widget *rout1;
81 struct snd_soc_dapm_widget *out3;
84 #define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
86 /* enumerated controls */
87 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
88 "Right Inverted", "Stereo Inversion"};
89 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
90 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
91 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
92 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
94 static const struct soc_enum wm8960_enum[] = {
95 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
96 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
97 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
98 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
99 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
100 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
103 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
104 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
105 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
106 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
108 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
109 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
111 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
113 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
116 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
119 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
121 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
124 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
126 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
128 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
129 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
131 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
132 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
133 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
135 SOC_ENUM("DAC Polarity", wm8960_enum[2]),
137 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
138 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
139 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
140 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
142 SOC_ENUM("ALC Function", wm8960_enum[4]),
143 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
144 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
145 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
146 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
147 SOC_ENUM("ALC Mode", wm8960_enum[5]),
148 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
149 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
151 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
152 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
154 SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
157 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
158 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
159 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
160 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
161 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
162 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
163 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
164 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
167 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
168 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
169 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
170 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
173 static const struct snd_kcontrol_new wm8960_lin[] = {
174 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
177 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
178 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
179 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
180 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
183 static const struct snd_kcontrol_new wm8960_rin[] = {
184 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
187 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
188 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
189 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
190 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
193 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
194 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
195 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
196 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
199 static const struct snd_kcontrol_new wm8960_mono_out[] = {
200 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
201 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
204 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
205 SND_SOC_DAPM_INPUT("LINPUT1"),
206 SND_SOC_DAPM_INPUT("RINPUT1"),
207 SND_SOC_DAPM_INPUT("LINPUT2"),
208 SND_SOC_DAPM_INPUT("RINPUT2"),
209 SND_SOC_DAPM_INPUT("LINPUT3"),
210 SND_SOC_DAPM_INPUT("RINPUT3"),
212 SND_SOC_DAPM_MICBIAS("MICB", WM8960_POWER1, 1, 0),
214 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
215 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
216 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
217 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
219 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
220 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
221 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
222 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
224 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0),
225 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0),
227 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
228 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
230 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
231 &wm8960_loutput_mixer[0],
232 ARRAY_SIZE(wm8960_loutput_mixer)),
233 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
234 &wm8960_routput_mixer[0],
235 ARRAY_SIZE(wm8960_routput_mixer)),
237 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
238 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
240 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
241 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
243 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
244 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
246 SND_SOC_DAPM_OUTPUT("SPK_LP"),
247 SND_SOC_DAPM_OUTPUT("SPK_LN"),
248 SND_SOC_DAPM_OUTPUT("HP_L"),
249 SND_SOC_DAPM_OUTPUT("HP_R"),
250 SND_SOC_DAPM_OUTPUT("SPK_RP"),
251 SND_SOC_DAPM_OUTPUT("SPK_RN"),
252 SND_SOC_DAPM_OUTPUT("OUT3"),
255 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
256 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
258 ARRAY_SIZE(wm8960_mono_out)),
261 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
262 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
263 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
266 static const struct snd_soc_dapm_route audio_paths[] = {
267 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
268 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
269 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
271 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
272 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
273 { "Left Input Mixer", NULL, "LINPUT2" },
274 { "Left Input Mixer", NULL, "LINPUT3" },
276 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
277 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
278 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
280 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
281 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
282 { "Right Input Mixer", NULL, "RINPUT2" },
283 { "Right Input Mixer", NULL, "LINPUT3" },
285 { "Left ADC", NULL, "Left Input Mixer" },
286 { "Right ADC", NULL, "Right Input Mixer" },
288 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
289 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
290 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
292 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
293 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
294 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
296 { "LOUT1 PGA", NULL, "Left Output Mixer" },
297 { "ROUT1 PGA", NULL, "Right Output Mixer" },
299 { "HP_L", NULL, "LOUT1 PGA" },
300 { "HP_R", NULL, "ROUT1 PGA" },
302 { "Left Speaker PGA", NULL, "Left Output Mixer" },
303 { "Right Speaker PGA", NULL, "Right Output Mixer" },
305 { "Left Speaker Output", NULL, "Left Speaker PGA" },
306 { "Right Speaker Output", NULL, "Right Speaker PGA" },
308 { "SPK_LN", NULL, "Left Speaker Output" },
309 { "SPK_LP", NULL, "Left Speaker Output" },
310 { "SPK_RN", NULL, "Right Speaker Output" },
311 { "SPK_RP", NULL, "Right Speaker Output" },
314 static const struct snd_soc_dapm_route audio_paths_out3[] = {
315 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
316 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
318 { "OUT3", NULL, "Mono Output Mixer", }
321 static const struct snd_soc_dapm_route audio_paths_capless[] = {
322 { "HP_L", NULL, "OUT3 VMID" },
323 { "HP_R", NULL, "OUT3 VMID" },
325 { "OUT3 VMID", NULL, "Left Output Mixer" },
326 { "OUT3 VMID", NULL, "Right Output Mixer" },
329 static int wm8960_add_widgets(struct snd_soc_codec *codec)
331 struct wm8960_data *pdata = codec->dev->platform_data;
332 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
333 struct snd_soc_dapm_widget *w;
335 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets,
336 ARRAY_SIZE(wm8960_dapm_widgets));
338 snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
340 /* In capless mode OUT3 is used to provide VMID for the
341 * headphone outputs, otherwise it is used as a mono mixer.
343 if (pdata && pdata->capless) {
344 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets_capless,
345 ARRAY_SIZE(wm8960_dapm_widgets_capless));
347 snd_soc_dapm_add_routes(codec, audio_paths_capless,
348 ARRAY_SIZE(audio_paths_capless));
350 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets_out3,
351 ARRAY_SIZE(wm8960_dapm_widgets_out3));
353 snd_soc_dapm_add_routes(codec, audio_paths_out3,
354 ARRAY_SIZE(audio_paths_out3));
357 /* We need to power up the headphone output stage out of
358 * sequence for capless mode. To save scanning the widget
359 * list each time to find the desired power state do so now
360 * and save the result.
362 list_for_each_entry(w, &codec->dapm_widgets, list) {
363 if (strcmp(w->name, "LOUT1 PGA") == 0)
365 if (strcmp(w->name, "ROUT1 PGA") == 0)
367 if (strcmp(w->name, "OUT3 VMID") == 0)
374 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
377 struct snd_soc_codec *codec = codec_dai->codec;
380 /* set master/slave audio interface */
381 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
382 case SND_SOC_DAIFMT_CBM_CFM:
385 case SND_SOC_DAIFMT_CBS_CFS:
391 /* interface format */
392 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
393 case SND_SOC_DAIFMT_I2S:
396 case SND_SOC_DAIFMT_RIGHT_J:
398 case SND_SOC_DAIFMT_LEFT_J:
401 case SND_SOC_DAIFMT_DSP_A:
404 case SND_SOC_DAIFMT_DSP_B:
411 /* clock inversion */
412 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
413 case SND_SOC_DAIFMT_NB_NF:
415 case SND_SOC_DAIFMT_IB_IF:
418 case SND_SOC_DAIFMT_IB_NF:
421 case SND_SOC_DAIFMT_NB_IF:
429 snd_soc_write(codec, WM8960_IFACE1, iface);
433 static int wm8960_hw_params(struct snd_pcm_substream *substream,
434 struct snd_pcm_hw_params *params,
435 struct snd_soc_dai *dai)
437 struct snd_soc_pcm_runtime *rtd = substream->private_data;
438 struct snd_soc_device *socdev = rtd->socdev;
439 struct snd_soc_codec *codec = socdev->card->codec;
440 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
443 switch (params_format(params)) {
444 case SNDRV_PCM_FORMAT_S16_LE:
446 case SNDRV_PCM_FORMAT_S20_3LE:
449 case SNDRV_PCM_FORMAT_S24_LE:
455 snd_soc_write(codec, WM8960_IFACE1, iface);
459 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
461 struct snd_soc_codec *codec = dai->codec;
462 u16 mute_reg = snd_soc_read(codec, WM8960_DACCTL1) & 0xfff7;
465 snd_soc_write(codec, WM8960_DACCTL1, mute_reg | 0x8);
467 snd_soc_write(codec, WM8960_DACCTL1, mute_reg);
471 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
472 enum snd_soc_bias_level level)
477 case SND_SOC_BIAS_ON:
480 case SND_SOC_BIAS_PREPARE:
481 /* Set VMID to 2x50k */
482 reg = snd_soc_read(codec, WM8960_POWER1);
485 snd_soc_write(codec, WM8960_POWER1, reg);
488 case SND_SOC_BIAS_STANDBY:
489 if (codec->bias_level == SND_SOC_BIAS_OFF) {
490 /* Enable anti-pop features */
491 snd_soc_write(codec, WM8960_APOP1,
492 WM8960_POBCTRL | WM8960_SOFT_ST |
493 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
495 /* Enable & ramp VMID at 2x50k */
496 reg = snd_soc_read(codec, WM8960_POWER1);
498 snd_soc_write(codec, WM8960_POWER1, reg);
502 snd_soc_write(codec, WM8960_POWER1, reg | WM8960_VREF);
504 /* Disable anti-pop features */
505 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
508 /* Set VMID to 2x250k */
509 reg = snd_soc_read(codec, WM8960_POWER1);
512 snd_soc_write(codec, WM8960_POWER1, reg);
515 case SND_SOC_BIAS_OFF:
516 /* Enable anti-pop features */
517 snd_soc_write(codec, WM8960_APOP1,
518 WM8960_POBCTRL | WM8960_SOFT_ST |
519 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
521 /* Disable VMID and VREF, let them discharge */
522 snd_soc_write(codec, WM8960_POWER1, 0);
527 codec->bias_level = level;
532 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
533 enum snd_soc_bias_level level)
535 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
539 case SND_SOC_BIAS_ON:
542 case SND_SOC_BIAS_PREPARE:
543 switch (codec->bias_level) {
544 case SND_SOC_BIAS_STANDBY:
545 /* Enable anti pop mode */
546 snd_soc_update_bits(codec, WM8960_APOP1,
547 WM8960_POBCTRL | WM8960_SOFT_ST |
549 WM8960_POBCTRL | WM8960_SOFT_ST |
552 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
554 if (wm8960->lout1 && wm8960->lout1->power)
555 reg |= WM8960_PWR2_LOUT1;
556 if (wm8960->rout1 && wm8960->rout1->power)
557 reg |= WM8960_PWR2_ROUT1;
558 if (wm8960->out3 && wm8960->out3->power)
559 reg |= WM8960_PWR2_OUT3;
560 snd_soc_update_bits(codec, WM8960_POWER2,
563 WM8960_PWR2_OUT3, reg);
565 /* Enable VMID at 2*50k */
566 snd_soc_update_bits(codec, WM8960_POWER1,
567 WM8960_VMID_MASK, 0x80);
573 snd_soc_update_bits(codec, WM8960_POWER1,
574 WM8960_VREF, WM8960_VREF);
579 case SND_SOC_BIAS_ON:
580 /* Enable anti-pop mode */
581 snd_soc_update_bits(codec, WM8960_APOP1,
582 WM8960_POBCTRL | WM8960_SOFT_ST |
584 WM8960_POBCTRL | WM8960_SOFT_ST |
587 /* Disable VMID and VREF */
588 snd_soc_update_bits(codec, WM8960_POWER1,
589 WM8960_VREF | WM8960_VMID_MASK, 0);
597 case SND_SOC_BIAS_STANDBY:
598 switch (codec->bias_level) {
599 case SND_SOC_BIAS_PREPARE:
600 /* Disable HP discharge */
601 snd_soc_update_bits(codec, WM8960_APOP2,
602 WM8960_DISOP | WM8960_DRES_MASK,
605 /* Disable anti-pop features */
606 snd_soc_update_bits(codec, WM8960_APOP1,
607 WM8960_POBCTRL | WM8960_SOFT_ST |
609 WM8960_POBCTRL | WM8960_SOFT_ST |
618 case SND_SOC_BIAS_OFF:
622 codec->bias_level = level;
634 /* The size in bits of the pll divide multiplied by 10
635 * to allow rounding later */
636 #define FIXED_PLL_SIZE ((1 << 24) * 10)
638 static int pll_factors(unsigned int source, unsigned int target,
639 struct _pll_div *pll_div)
641 unsigned long long Kpart;
642 unsigned int K, Ndiv, Nmod;
644 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
646 /* Scale up target to PLL operating frequency */
649 Ndiv = target / source;
652 pll_div->pre_div = 1;
653 Ndiv = target / source;
655 pll_div->pre_div = 0;
657 if ((Ndiv < 6) || (Ndiv > 12)) {
658 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
663 Nmod = target % source;
664 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
666 do_div(Kpart, source);
668 K = Kpart & 0xFFFFFFFF;
670 /* Check if we need to round */
674 /* Move down to proper range now rounding is done */
679 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
680 pll_div->n, pll_div->k, pll_div->pre_div);
685 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
686 int source, unsigned int freq_in, unsigned int freq_out)
688 struct snd_soc_codec *codec = codec_dai->codec;
690 static struct _pll_div pll_div;
693 if (freq_in && freq_out) {
694 ret = pll_factors(freq_in, freq_out, &pll_div);
699 /* Disable the PLL: even if we are changing the frequency the
700 * PLL needs to be disabled while we do so. */
701 snd_soc_write(codec, WM8960_CLOCK1,
702 snd_soc_read(codec, WM8960_CLOCK1) & ~1);
703 snd_soc_write(codec, WM8960_POWER2,
704 snd_soc_read(codec, WM8960_POWER2) & ~1);
706 if (!freq_in || !freq_out)
709 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
710 reg |= pll_div.pre_div << 4;
716 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
717 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
718 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
720 snd_soc_write(codec, WM8960_PLL1, reg);
723 snd_soc_write(codec, WM8960_POWER2,
724 snd_soc_read(codec, WM8960_POWER2) | 1);
726 snd_soc_write(codec, WM8960_CLOCK1,
727 snd_soc_read(codec, WM8960_CLOCK1) | 1);
732 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
735 struct snd_soc_codec *codec = codec_dai->codec;
739 case WM8960_SYSCLKDIV:
740 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
741 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
744 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
745 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
747 case WM8960_OPCLKDIV:
748 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
749 snd_soc_write(codec, WM8960_PLL1, reg | div);
752 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
753 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
755 case WM8960_TOCLKSEL:
756 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
757 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
766 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
768 #define WM8960_FORMATS \
769 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
770 SNDRV_PCM_FMTBIT_S24_LE)
772 static struct snd_soc_dai_ops wm8960_dai_ops = {
773 .hw_params = wm8960_hw_params,
774 .digital_mute = wm8960_mute,
775 .set_fmt = wm8960_set_dai_fmt,
776 .set_clkdiv = wm8960_set_dai_clkdiv,
777 .set_pll = wm8960_set_dai_pll,
780 struct snd_soc_dai wm8960_dai = {
783 .stream_name = "Playback",
786 .rates = WM8960_RATES,
787 .formats = WM8960_FORMATS,},
789 .stream_name = "Capture",
792 .rates = WM8960_RATES,
793 .formats = WM8960_FORMATS,},
794 .ops = &wm8960_dai_ops,
795 .symmetric_rates = 1,
797 EXPORT_SYMBOL_GPL(wm8960_dai);
799 static int wm8960_suspend(struct platform_device *pdev, pm_message_t state)
801 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
802 struct snd_soc_codec *codec = socdev->card->codec;
804 codec->set_bias_level(codec, SND_SOC_BIAS_OFF);
808 static int wm8960_resume(struct platform_device *pdev)
810 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
811 struct snd_soc_codec *codec = socdev->card->codec;
814 u16 *cache = codec->reg_cache;
816 /* Sync reg_cache with the hardware */
817 for (i = 0; i < ARRAY_SIZE(wm8960_reg); i++) {
818 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
819 data[1] = cache[i] & 0x00ff;
820 codec->hw_write(codec->control_data, data, 2);
823 codec->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
828 static struct snd_soc_codec *wm8960_codec;
830 static int wm8960_probe(struct platform_device *pdev)
832 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
833 struct snd_soc_codec *codec;
836 if (wm8960_codec == NULL) {
837 dev_err(&pdev->dev, "Codec device not registered\n");
841 socdev->card->codec = wm8960_codec;
842 codec = wm8960_codec;
845 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
847 dev_err(codec->dev, "failed to create pcms: %d\n", ret);
851 snd_soc_add_controls(codec, wm8960_snd_controls,
852 ARRAY_SIZE(wm8960_snd_controls));
853 wm8960_add_widgets(codec);
861 /* power down chip */
862 static int wm8960_remove(struct platform_device *pdev)
864 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
866 snd_soc_free_pcms(socdev);
867 snd_soc_dapm_free(socdev);
872 struct snd_soc_codec_device soc_codec_dev_wm8960 = {
873 .probe = wm8960_probe,
874 .remove = wm8960_remove,
875 .suspend = wm8960_suspend,
876 .resume = wm8960_resume,
878 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8960);
880 static int wm8960_register(struct wm8960_priv *wm8960,
881 enum snd_soc_control_type control)
883 struct wm8960_data *pdata = wm8960->codec.dev->platform_data;
884 struct snd_soc_codec *codec = &wm8960->codec;
889 dev_err(codec->dev, "Another WM8960 is registered\n");
894 codec->set_bias_level = wm8960_set_bias_level_out3;
897 dev_warn(codec->dev, "No platform data supplied\n");
899 if (pdata->dres > WM8960_DRES_MAX) {
900 dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres);
905 codec->set_bias_level = wm8960_set_bias_level_capless;
908 mutex_init(&codec->mutex);
909 INIT_LIST_HEAD(&codec->dapm_widgets);
910 INIT_LIST_HEAD(&codec->dapm_paths);
912 snd_soc_codec_set_drvdata(codec, wm8960);
913 codec->name = "WM8960";
914 codec->owner = THIS_MODULE;
915 codec->bias_level = SND_SOC_BIAS_OFF;
916 codec->dai = &wm8960_dai;
918 codec->reg_cache_size = WM8960_CACHEREGNUM;
919 codec->reg_cache = &wm8960->reg_cache;
921 memcpy(codec->reg_cache, wm8960_reg, sizeof(wm8960_reg));
923 ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
925 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
929 ret = wm8960_reset(codec);
931 dev_err(codec->dev, "Failed to issue reset\n");
935 wm8960_dai.dev = codec->dev;
937 codec->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
939 /* Latch the update bits */
940 reg = snd_soc_read(codec, WM8960_LINVOL);
941 snd_soc_write(codec, WM8960_LINVOL, reg | 0x100);
942 reg = snd_soc_read(codec, WM8960_RINVOL);
943 snd_soc_write(codec, WM8960_RINVOL, reg | 0x100);
944 reg = snd_soc_read(codec, WM8960_LADC);
945 snd_soc_write(codec, WM8960_LADC, reg | 0x100);
946 reg = snd_soc_read(codec, WM8960_RADC);
947 snd_soc_write(codec, WM8960_RADC, reg | 0x100);
948 reg = snd_soc_read(codec, WM8960_LDAC);
949 snd_soc_write(codec, WM8960_LDAC, reg | 0x100);
950 reg = snd_soc_read(codec, WM8960_RDAC);
951 snd_soc_write(codec, WM8960_RDAC, reg | 0x100);
952 reg = snd_soc_read(codec, WM8960_LOUT1);
953 snd_soc_write(codec, WM8960_LOUT1, reg | 0x100);
954 reg = snd_soc_read(codec, WM8960_ROUT1);
955 snd_soc_write(codec, WM8960_ROUT1, reg | 0x100);
956 reg = snd_soc_read(codec, WM8960_LOUT2);
957 snd_soc_write(codec, WM8960_LOUT2, reg | 0x100);
958 reg = snd_soc_read(codec, WM8960_ROUT2);
959 snd_soc_write(codec, WM8960_ROUT2, reg | 0x100);
961 wm8960_codec = codec;
963 ret = snd_soc_register_codec(codec);
965 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
969 ret = snd_soc_register_dai(&wm8960_dai);
971 dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
978 snd_soc_unregister_codec(codec);
984 static void wm8960_unregister(struct wm8960_priv *wm8960)
986 wm8960->codec.set_bias_level(&wm8960->codec, SND_SOC_BIAS_OFF);
987 snd_soc_unregister_dai(&wm8960_dai);
988 snd_soc_unregister_codec(&wm8960->codec);
993 static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
994 const struct i2c_device_id *id)
996 struct wm8960_priv *wm8960;
997 struct snd_soc_codec *codec;
999 wm8960 = kzalloc(sizeof(struct wm8960_priv), GFP_KERNEL);
1003 codec = &wm8960->codec;
1005 i2c_set_clientdata(i2c, wm8960);
1006 codec->control_data = i2c;
1008 codec->dev = &i2c->dev;
1010 return wm8960_register(wm8960, SND_SOC_I2C);
1013 static __devexit int wm8960_i2c_remove(struct i2c_client *client)
1015 struct wm8960_priv *wm8960 = i2c_get_clientdata(client);
1016 wm8960_unregister(wm8960);
1020 static const struct i2c_device_id wm8960_i2c_id[] = {
1024 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1026 static struct i2c_driver wm8960_i2c_driver = {
1029 .owner = THIS_MODULE,
1031 .probe = wm8960_i2c_probe,
1032 .remove = __devexit_p(wm8960_i2c_remove),
1033 .id_table = wm8960_i2c_id,
1036 static int __init wm8960_modinit(void)
1040 ret = i2c_add_driver(&wm8960_i2c_driver);
1042 printk(KERN_ERR "Failed to register WM8960 I2C driver: %d\n",
1048 module_init(wm8960_modinit);
1050 static void __exit wm8960_exit(void)
1052 i2c_del_driver(&wm8960_i2c_driver);
1054 module_exit(wm8960_exit);
1057 MODULE_DESCRIPTION("ASoC WM8960 driver");
1058 MODULE_AUTHOR("Liam Girdwood");
1059 MODULE_LICENSE("GPL");