2 * wm8960.c -- WM8960 ALSA SoC Audio driver
4 * Copyright 2007-11 Wolfson Microelectronics, plc
6 * Author: Liam Girdwood
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
18 #include <linux/i2c.h>
19 #include <linux/slab.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/initval.h>
25 #include <sound/tlv.h>
26 #include <sound/wm8960.h>
31 #define WM8960_VMID_MASK 0x180
32 #define WM8960_VREF 0x40
35 #define WM8960_PWR2_LOUT1 0x40
36 #define WM8960_PWR2_ROUT1 0x20
37 #define WM8960_PWR2_OUT3 0x02
39 /* R28 - Anti-pop 1 */
40 #define WM8960_POBCTRL 0x80
41 #define WM8960_BUFDCOPEN 0x10
42 #define WM8960_BUFIOEN 0x08
43 #define WM8960_SOFT_ST 0x04
44 #define WM8960_HPSTBY 0x01
46 /* R29 - Anti-pop 2 */
47 #define WM8960_DISOP 0x40
48 #define WM8960_DRES_MASK 0x30
51 * wm8960 register cache
52 * We can't read the WM8960 register space when we are
53 * using 2 wire for device control, so we cache them instead.
55 static const struct reg_default wm8960_reg_defaults[] = {
109 static bool wm8960_volatile(struct device *dev, unsigned int reg)
120 struct regmap *regmap;
121 int (*set_bias_level)(struct snd_soc_codec *,
122 enum snd_soc_bias_level level);
123 struct snd_soc_dapm_widget *lout1;
124 struct snd_soc_dapm_widget *rout1;
125 struct snd_soc_dapm_widget *out3;
130 #define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
132 /* enumerated controls */
133 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
134 "Right Inverted", "Stereo Inversion"};
135 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
136 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
137 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
138 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
140 static const struct soc_enum wm8960_enum[] = {
141 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
142 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
143 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
144 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
145 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
146 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
149 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
151 static int wm8960_set_deemph(struct snd_soc_codec *codec)
153 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
156 /* If we're using deemphasis select the nearest available sample
159 if (wm8960->deemph) {
161 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
162 if (abs(deemph_settings[i] - wm8960->playback_fs) <
163 abs(deemph_settings[best] - wm8960->playback_fs))
172 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
174 return snd_soc_update_bits(codec, WM8960_DACCTL1,
178 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
179 struct snd_ctl_elem_value *ucontrol)
181 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
182 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
184 ucontrol->value.enumerated.item[0] = wm8960->deemph;
188 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
189 struct snd_ctl_elem_value *ucontrol)
191 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
192 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
193 int deemph = ucontrol->value.enumerated.item[0];
198 wm8960->deemph = deemph;
200 return wm8960_set_deemph(codec);
203 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
204 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
205 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
206 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
207 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
209 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
210 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
212 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
214 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
217 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
218 WM8960_INBMIX1, 4, 7, 0, boost_tlv),
219 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
220 WM8960_INBMIX1, 1, 7, 0, boost_tlv),
221 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
222 WM8960_INBMIX2, 4, 7, 0, boost_tlv),
223 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
224 WM8960_INBMIX2, 1, 7, 0, boost_tlv),
226 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
229 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
231 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
234 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
236 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
238 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
239 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
241 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
242 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
243 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
245 SOC_ENUM("DAC Polarity", wm8960_enum[2]),
246 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
247 wm8960_get_deemph, wm8960_put_deemph),
249 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
250 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
251 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
252 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
254 SOC_ENUM("ALC Function", wm8960_enum[4]),
255 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
256 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
257 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
258 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
259 SOC_ENUM("ALC Mode", wm8960_enum[5]),
260 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
261 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
263 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
264 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
266 SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
269 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
270 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
271 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
272 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
273 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
274 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
275 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
276 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
279 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
280 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
281 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
282 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
285 static const struct snd_kcontrol_new wm8960_lin[] = {
286 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
289 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
290 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
291 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
292 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
295 static const struct snd_kcontrol_new wm8960_rin[] = {
296 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
299 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
300 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
301 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
302 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
305 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
306 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
307 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
308 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
311 static const struct snd_kcontrol_new wm8960_mono_out[] = {
312 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
313 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
316 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
317 SND_SOC_DAPM_INPUT("LINPUT1"),
318 SND_SOC_DAPM_INPUT("RINPUT1"),
319 SND_SOC_DAPM_INPUT("LINPUT2"),
320 SND_SOC_DAPM_INPUT("RINPUT2"),
321 SND_SOC_DAPM_INPUT("LINPUT3"),
322 SND_SOC_DAPM_INPUT("RINPUT3"),
324 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
326 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
327 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
328 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
329 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
331 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
332 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
333 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
334 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
336 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
337 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
339 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
340 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
342 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
343 &wm8960_loutput_mixer[0],
344 ARRAY_SIZE(wm8960_loutput_mixer)),
345 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
346 &wm8960_routput_mixer[0],
347 ARRAY_SIZE(wm8960_routput_mixer)),
349 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
350 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
352 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
353 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
355 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
356 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
358 SND_SOC_DAPM_OUTPUT("SPK_LP"),
359 SND_SOC_DAPM_OUTPUT("SPK_LN"),
360 SND_SOC_DAPM_OUTPUT("HP_L"),
361 SND_SOC_DAPM_OUTPUT("HP_R"),
362 SND_SOC_DAPM_OUTPUT("SPK_RP"),
363 SND_SOC_DAPM_OUTPUT("SPK_RN"),
364 SND_SOC_DAPM_OUTPUT("OUT3"),
367 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
368 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
370 ARRAY_SIZE(wm8960_mono_out)),
373 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
374 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
375 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
378 static const struct snd_soc_dapm_route audio_paths[] = {
379 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
380 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
381 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
383 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
384 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
385 { "Left Input Mixer", NULL, "LINPUT2" },
386 { "Left Input Mixer", NULL, "LINPUT3" },
388 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
389 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
390 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
392 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
393 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
394 { "Right Input Mixer", NULL, "RINPUT2" },
395 { "Right Input Mixer", NULL, "LINPUT3" },
397 { "Left ADC", NULL, "Left Input Mixer" },
398 { "Right ADC", NULL, "Right Input Mixer" },
400 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
401 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
402 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
404 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
405 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
406 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
408 { "LOUT1 PGA", NULL, "Left Output Mixer" },
409 { "ROUT1 PGA", NULL, "Right Output Mixer" },
411 { "HP_L", NULL, "LOUT1 PGA" },
412 { "HP_R", NULL, "ROUT1 PGA" },
414 { "Left Speaker PGA", NULL, "Left Output Mixer" },
415 { "Right Speaker PGA", NULL, "Right Output Mixer" },
417 { "Left Speaker Output", NULL, "Left Speaker PGA" },
418 { "Right Speaker Output", NULL, "Right Speaker PGA" },
420 { "SPK_LN", NULL, "Left Speaker Output" },
421 { "SPK_LP", NULL, "Left Speaker Output" },
422 { "SPK_RN", NULL, "Right Speaker Output" },
423 { "SPK_RP", NULL, "Right Speaker Output" },
426 static const struct snd_soc_dapm_route audio_paths_out3[] = {
427 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
428 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
430 { "OUT3", NULL, "Mono Output Mixer", }
433 static const struct snd_soc_dapm_route audio_paths_capless[] = {
434 { "HP_L", NULL, "OUT3 VMID" },
435 { "HP_R", NULL, "OUT3 VMID" },
437 { "OUT3 VMID", NULL, "Left Output Mixer" },
438 { "OUT3 VMID", NULL, "Right Output Mixer" },
441 static int wm8960_add_widgets(struct snd_soc_codec *codec)
443 struct wm8960_data *pdata = codec->dev->platform_data;
444 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
445 struct snd_soc_dapm_context *dapm = &codec->dapm;
446 struct snd_soc_dapm_widget *w;
448 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
449 ARRAY_SIZE(wm8960_dapm_widgets));
451 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
453 /* In capless mode OUT3 is used to provide VMID for the
454 * headphone outputs, otherwise it is used as a mono mixer.
456 if (pdata && pdata->capless) {
457 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
458 ARRAY_SIZE(wm8960_dapm_widgets_capless));
460 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
461 ARRAY_SIZE(audio_paths_capless));
463 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
464 ARRAY_SIZE(wm8960_dapm_widgets_out3));
466 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
467 ARRAY_SIZE(audio_paths_out3));
470 /* We need to power up the headphone output stage out of
471 * sequence for capless mode. To save scanning the widget
472 * list each time to find the desired power state do so now
473 * and save the result.
475 list_for_each_entry(w, &codec->card->widgets, list) {
476 if (w->dapm != &codec->dapm)
478 if (strcmp(w->name, "LOUT1 PGA") == 0)
480 if (strcmp(w->name, "ROUT1 PGA") == 0)
482 if (strcmp(w->name, "OUT3 VMID") == 0)
489 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
492 struct snd_soc_codec *codec = codec_dai->codec;
495 /* set master/slave audio interface */
496 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
497 case SND_SOC_DAIFMT_CBM_CFM:
500 case SND_SOC_DAIFMT_CBS_CFS:
506 /* interface format */
507 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
508 case SND_SOC_DAIFMT_I2S:
511 case SND_SOC_DAIFMT_RIGHT_J:
513 case SND_SOC_DAIFMT_LEFT_J:
516 case SND_SOC_DAIFMT_DSP_A:
519 case SND_SOC_DAIFMT_DSP_B:
526 /* clock inversion */
527 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
528 case SND_SOC_DAIFMT_NB_NF:
530 case SND_SOC_DAIFMT_IB_IF:
533 case SND_SOC_DAIFMT_IB_NF:
536 case SND_SOC_DAIFMT_NB_IF:
544 snd_soc_write(codec, WM8960_IFACE1, iface);
563 static int wm8960_hw_params(struct snd_pcm_substream *substream,
564 struct snd_pcm_hw_params *params,
565 struct snd_soc_dai *dai)
567 struct snd_soc_codec *codec = dai->codec;
568 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
569 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
570 snd_pcm_format_t format = params_format(params);
575 case SNDRV_PCM_FORMAT_S16_LE:
576 case SNDRV_PCM_FORMAT_S16_BE:
578 case SNDRV_PCM_FORMAT_S20_3LE:
579 case SNDRV_PCM_FORMAT_S20_3BE:
582 case SNDRV_PCM_FORMAT_S24_LE:
583 case SNDRV_PCM_FORMAT_S24_BE:
587 dev_err(codec->dev, "unsupported format %i\n", format);
591 /* Update filters for the new rate */
592 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
593 wm8960->playback_fs = params_rate(params);
594 wm8960_set_deemph(codec);
596 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
597 if (alc_rates[i].rate == params_rate(params))
598 snd_soc_update_bits(codec,
604 snd_soc_write(codec, WM8960_IFACE1, iface);
608 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
610 struct snd_soc_codec *codec = dai->codec;
613 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
615 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
619 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
620 enum snd_soc_bias_level level)
622 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
625 case SND_SOC_BIAS_ON:
628 case SND_SOC_BIAS_PREPARE:
629 /* Set VMID to 2x50k */
630 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
633 case SND_SOC_BIAS_STANDBY:
634 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
635 regcache_sync(wm8960->regmap);
637 /* Enable anti-pop features */
638 snd_soc_write(codec, WM8960_APOP1,
639 WM8960_POBCTRL | WM8960_SOFT_ST |
640 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
642 /* Enable & ramp VMID at 2x50k */
643 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
647 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
650 /* Disable anti-pop features */
651 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
654 /* Set VMID to 2x250k */
655 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
658 case SND_SOC_BIAS_OFF:
659 /* Enable anti-pop features */
660 snd_soc_write(codec, WM8960_APOP1,
661 WM8960_POBCTRL | WM8960_SOFT_ST |
662 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
664 /* Disable VMID and VREF, let them discharge */
665 snd_soc_write(codec, WM8960_POWER1, 0);
670 codec->dapm.bias_level = level;
675 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
676 enum snd_soc_bias_level level)
678 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
682 case SND_SOC_BIAS_ON:
685 case SND_SOC_BIAS_PREPARE:
686 switch (codec->dapm.bias_level) {
687 case SND_SOC_BIAS_STANDBY:
688 /* Enable anti pop mode */
689 snd_soc_update_bits(codec, WM8960_APOP1,
690 WM8960_POBCTRL | WM8960_SOFT_ST |
692 WM8960_POBCTRL | WM8960_SOFT_ST |
695 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
697 if (wm8960->lout1 && wm8960->lout1->power)
698 reg |= WM8960_PWR2_LOUT1;
699 if (wm8960->rout1 && wm8960->rout1->power)
700 reg |= WM8960_PWR2_ROUT1;
701 if (wm8960->out3 && wm8960->out3->power)
702 reg |= WM8960_PWR2_OUT3;
703 snd_soc_update_bits(codec, WM8960_POWER2,
706 WM8960_PWR2_OUT3, reg);
708 /* Enable VMID at 2*50k */
709 snd_soc_update_bits(codec, WM8960_POWER1,
710 WM8960_VMID_MASK, 0x80);
716 snd_soc_update_bits(codec, WM8960_POWER1,
717 WM8960_VREF, WM8960_VREF);
722 case SND_SOC_BIAS_ON:
723 /* Enable anti-pop mode */
724 snd_soc_update_bits(codec, WM8960_APOP1,
725 WM8960_POBCTRL | WM8960_SOFT_ST |
727 WM8960_POBCTRL | WM8960_SOFT_ST |
730 /* Disable VMID and VREF */
731 snd_soc_update_bits(codec, WM8960_POWER1,
732 WM8960_VREF | WM8960_VMID_MASK, 0);
735 case SND_SOC_BIAS_OFF:
736 regcache_sync(wm8960->regmap);
743 case SND_SOC_BIAS_STANDBY:
744 switch (codec->dapm.bias_level) {
745 case SND_SOC_BIAS_PREPARE:
746 /* Disable HP discharge */
747 snd_soc_update_bits(codec, WM8960_APOP2,
748 WM8960_DISOP | WM8960_DRES_MASK,
751 /* Disable anti-pop features */
752 snd_soc_update_bits(codec, WM8960_APOP1,
753 WM8960_POBCTRL | WM8960_SOFT_ST |
755 WM8960_POBCTRL | WM8960_SOFT_ST |
764 case SND_SOC_BIAS_OFF:
768 codec->dapm.bias_level = level;
780 /* The size in bits of the pll divide multiplied by 10
781 * to allow rounding later */
782 #define FIXED_PLL_SIZE ((1 << 24) * 10)
784 static int pll_factors(unsigned int source, unsigned int target,
785 struct _pll_div *pll_div)
787 unsigned long long Kpart;
788 unsigned int K, Ndiv, Nmod;
790 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
792 /* Scale up target to PLL operating frequency */
795 Ndiv = target / source;
798 pll_div->pre_div = 1;
799 Ndiv = target / source;
801 pll_div->pre_div = 0;
803 if ((Ndiv < 6) || (Ndiv > 12)) {
804 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
809 Nmod = target % source;
810 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
812 do_div(Kpart, source);
814 K = Kpart & 0xFFFFFFFF;
816 /* Check if we need to round */
820 /* Move down to proper range now rounding is done */
825 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
826 pll_div->n, pll_div->k, pll_div->pre_div);
831 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
832 int source, unsigned int freq_in, unsigned int freq_out)
834 struct snd_soc_codec *codec = codec_dai->codec;
836 static struct _pll_div pll_div;
839 if (freq_in && freq_out) {
840 ret = pll_factors(freq_in, freq_out, &pll_div);
845 /* Disable the PLL: even if we are changing the frequency the
846 * PLL needs to be disabled while we do so. */
847 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
848 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
850 if (!freq_in || !freq_out)
853 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
854 reg |= pll_div.pre_div << 4;
860 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
861 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
862 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
864 snd_soc_write(codec, WM8960_PLL1, reg);
867 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
869 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
874 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
877 struct snd_soc_codec *codec = codec_dai->codec;
881 case WM8960_SYSCLKDIV:
882 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
883 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
886 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
887 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
889 case WM8960_OPCLKDIV:
890 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
891 snd_soc_write(codec, WM8960_PLL1, reg | div);
894 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
895 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
897 case WM8960_TOCLKSEL:
898 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
899 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
908 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
909 enum snd_soc_bias_level level)
911 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
913 return wm8960->set_bias_level(codec, level);
916 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
918 #define WM8960_FORMATS \
919 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
920 SNDRV_PCM_FMTBIT_S24_LE)
922 static const struct snd_soc_dai_ops wm8960_dai_ops = {
923 .hw_params = wm8960_hw_params,
924 .digital_mute = wm8960_mute,
925 .set_fmt = wm8960_set_dai_fmt,
926 .set_clkdiv = wm8960_set_dai_clkdiv,
927 .set_pll = wm8960_set_dai_pll,
930 static struct snd_soc_dai_driver wm8960_dai = {
931 .name = "wm8960-hifi",
933 .stream_name = "Playback",
936 .rates = WM8960_RATES,
937 .formats = WM8960_FORMATS,},
939 .stream_name = "Capture",
942 .rates = WM8960_RATES,
943 .formats = WM8960_FORMATS,},
944 .ops = &wm8960_dai_ops,
945 .symmetric_rates = 1,
948 static int wm8960_suspend(struct snd_soc_codec *codec)
950 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
952 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
956 static int wm8960_resume(struct snd_soc_codec *codec)
958 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
960 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
964 static int wm8960_probe(struct snd_soc_codec *codec)
966 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
967 struct wm8960_data *pdata = dev_get_platdata(codec->dev);
970 wm8960->set_bias_level = wm8960_set_bias_level_out3;
973 dev_warn(codec->dev, "No platform data supplied\n");
976 wm8960->set_bias_level = wm8960_set_bias_level_capless;
979 ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
981 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
985 ret = wm8960_reset(codec);
987 dev_err(codec->dev, "Failed to issue reset\n");
991 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
993 /* Latch the update bits */
994 snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100);
995 snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100);
996 snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100);
997 snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100);
998 snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100);
999 snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100);
1000 snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100);
1001 snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100);
1002 snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100);
1003 snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100);
1005 snd_soc_add_codec_controls(codec, wm8960_snd_controls,
1006 ARRAY_SIZE(wm8960_snd_controls));
1007 wm8960_add_widgets(codec);
1012 /* power down chip */
1013 static int wm8960_remove(struct snd_soc_codec *codec)
1015 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1017 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
1021 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
1022 .probe = wm8960_probe,
1023 .remove = wm8960_remove,
1024 .suspend = wm8960_suspend,
1025 .resume = wm8960_resume,
1026 .set_bias_level = wm8960_set_bias_level,
1029 static const struct regmap_config wm8960_regmap = {
1032 .max_register = WM8960_PLL4,
1034 .reg_defaults = wm8960_reg_defaults,
1035 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1036 .cache_type = REGCACHE_RBTREE,
1038 .volatile_reg = wm8960_volatile,
1041 static int wm8960_i2c_probe(struct i2c_client *i2c,
1042 const struct i2c_device_id *id)
1044 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1045 struct wm8960_priv *wm8960;
1048 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1053 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1054 if (IS_ERR(wm8960->regmap))
1055 return PTR_ERR(wm8960->regmap);
1057 if (pdata && pdata->shared_lrclk) {
1058 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1061 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1067 i2c_set_clientdata(i2c, wm8960);
1069 ret = snd_soc_register_codec(&i2c->dev,
1070 &soc_codec_dev_wm8960, &wm8960_dai, 1);
1075 static int wm8960_i2c_remove(struct i2c_client *client)
1077 snd_soc_unregister_codec(&client->dev);
1081 static const struct i2c_device_id wm8960_i2c_id[] = {
1085 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1087 static struct i2c_driver wm8960_i2c_driver = {
1090 .owner = THIS_MODULE,
1092 .probe = wm8960_i2c_probe,
1093 .remove = wm8960_i2c_remove,
1094 .id_table = wm8960_i2c_id,
1097 module_i2c_driver(wm8960_i2c_driver);
1099 MODULE_DESCRIPTION("ASoC WM8960 driver");
1100 MODULE_AUTHOR("Liam Girdwood");
1101 MODULE_LICENSE("GPL");