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;
128 struct wm8960_data pdata;
131 #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
133 /* enumerated controls */
134 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
135 "Right Inverted", "Stereo Inversion"};
136 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
137 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
138 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
139 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
141 static const struct soc_enum wm8960_enum[] = {
142 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
143 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
144 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
145 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
146 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
147 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
150 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
152 static int wm8960_set_deemph(struct snd_soc_codec *codec)
154 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
157 /* If we're using deemphasis select the nearest available sample
160 if (wm8960->deemph) {
162 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
163 if (abs(deemph_settings[i] - wm8960->playback_fs) <
164 abs(deemph_settings[best] - wm8960->playback_fs))
173 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
175 return snd_soc_update_bits(codec, WM8960_DACCTL1,
179 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
180 struct snd_ctl_elem_value *ucontrol)
182 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
183 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
185 ucontrol->value.enumerated.item[0] = wm8960->deemph;
189 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
190 struct snd_ctl_elem_value *ucontrol)
192 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
193 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
194 int deemph = ucontrol->value.enumerated.item[0];
199 wm8960->deemph = deemph;
201 return wm8960_set_deemph(codec);
204 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
205 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
206 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
207 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
208 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
210 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
211 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
213 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
215 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
218 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
219 WM8960_INBMIX1, 4, 7, 0, boost_tlv),
220 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
221 WM8960_INBMIX1, 1, 7, 0, boost_tlv),
222 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
223 WM8960_INBMIX2, 4, 7, 0, boost_tlv),
224 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
225 WM8960_INBMIX2, 1, 7, 0, boost_tlv),
227 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
230 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
232 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
235 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
237 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
239 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
240 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
242 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
243 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
244 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
246 SOC_ENUM("DAC Polarity", wm8960_enum[2]),
247 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
248 wm8960_get_deemph, wm8960_put_deemph),
250 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
251 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
252 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
253 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
255 SOC_ENUM("ALC Function", wm8960_enum[4]),
256 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
257 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
258 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
259 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
260 SOC_ENUM("ALC Mode", wm8960_enum[5]),
261 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
262 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
264 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
265 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
267 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
270 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
271 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
272 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
273 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
274 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
275 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
276 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
277 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
280 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
281 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
282 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
283 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
286 static const struct snd_kcontrol_new wm8960_lin[] = {
287 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
290 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
291 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
292 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
293 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
296 static const struct snd_kcontrol_new wm8960_rin[] = {
297 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
300 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
301 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
302 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
303 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
306 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
307 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
308 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
309 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
312 static const struct snd_kcontrol_new wm8960_mono_out[] = {
313 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
314 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
317 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
318 SND_SOC_DAPM_INPUT("LINPUT1"),
319 SND_SOC_DAPM_INPUT("RINPUT1"),
320 SND_SOC_DAPM_INPUT("LINPUT2"),
321 SND_SOC_DAPM_INPUT("RINPUT2"),
322 SND_SOC_DAPM_INPUT("LINPUT3"),
323 SND_SOC_DAPM_INPUT("RINPUT3"),
325 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
327 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
328 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
329 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
330 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
332 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
333 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
334 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
335 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
337 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
338 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
340 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
341 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
343 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
344 &wm8960_loutput_mixer[0],
345 ARRAY_SIZE(wm8960_loutput_mixer)),
346 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
347 &wm8960_routput_mixer[0],
348 ARRAY_SIZE(wm8960_routput_mixer)),
350 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
351 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
353 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
354 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
356 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
357 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
359 SND_SOC_DAPM_OUTPUT("SPK_LP"),
360 SND_SOC_DAPM_OUTPUT("SPK_LN"),
361 SND_SOC_DAPM_OUTPUT("HP_L"),
362 SND_SOC_DAPM_OUTPUT("HP_R"),
363 SND_SOC_DAPM_OUTPUT("SPK_RP"),
364 SND_SOC_DAPM_OUTPUT("SPK_RN"),
365 SND_SOC_DAPM_OUTPUT("OUT3"),
368 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
369 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
371 ARRAY_SIZE(wm8960_mono_out)),
374 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
375 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
376 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
379 static const struct snd_soc_dapm_route audio_paths[] = {
380 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
381 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
382 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
384 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
385 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
386 { "Left Input Mixer", NULL, "LINPUT2" },
387 { "Left Input Mixer", NULL, "LINPUT3" },
389 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
390 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
391 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
393 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
394 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
395 { "Right Input Mixer", NULL, "RINPUT2" },
396 { "Right Input Mixer", NULL, "LINPUT3" },
398 { "Left ADC", NULL, "Left Input Mixer" },
399 { "Right ADC", NULL, "Right Input Mixer" },
401 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
402 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
403 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
405 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
406 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
407 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
409 { "LOUT1 PGA", NULL, "Left Output Mixer" },
410 { "ROUT1 PGA", NULL, "Right Output Mixer" },
412 { "HP_L", NULL, "LOUT1 PGA" },
413 { "HP_R", NULL, "ROUT1 PGA" },
415 { "Left Speaker PGA", NULL, "Left Output Mixer" },
416 { "Right Speaker PGA", NULL, "Right Output Mixer" },
418 { "Left Speaker Output", NULL, "Left Speaker PGA" },
419 { "Right Speaker Output", NULL, "Right Speaker PGA" },
421 { "SPK_LN", NULL, "Left Speaker Output" },
422 { "SPK_LP", NULL, "Left Speaker Output" },
423 { "SPK_RN", NULL, "Right Speaker Output" },
424 { "SPK_RP", NULL, "Right Speaker Output" },
427 static const struct snd_soc_dapm_route audio_paths_out3[] = {
428 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
429 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
431 { "OUT3", NULL, "Mono Output Mixer", }
434 static const struct snd_soc_dapm_route audio_paths_capless[] = {
435 { "HP_L", NULL, "OUT3 VMID" },
436 { "HP_R", NULL, "OUT3 VMID" },
438 { "OUT3 VMID", NULL, "Left Output Mixer" },
439 { "OUT3 VMID", NULL, "Right Output Mixer" },
442 static int wm8960_add_widgets(struct snd_soc_codec *codec)
444 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
445 struct wm8960_data *pdata = &wm8960->pdata;
446 struct snd_soc_dapm_context *dapm = &codec->dapm;
447 struct snd_soc_dapm_widget *w;
449 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
450 ARRAY_SIZE(wm8960_dapm_widgets));
452 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
454 /* In capless mode OUT3 is used to provide VMID for the
455 * headphone outputs, otherwise it is used as a mono mixer.
457 if (pdata && pdata->capless) {
458 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
459 ARRAY_SIZE(wm8960_dapm_widgets_capless));
461 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
462 ARRAY_SIZE(audio_paths_capless));
464 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
465 ARRAY_SIZE(wm8960_dapm_widgets_out3));
467 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
468 ARRAY_SIZE(audio_paths_out3));
471 /* We need to power up the headphone output stage out of
472 * sequence for capless mode. To save scanning the widget
473 * list each time to find the desired power state do so now
474 * and save the result.
476 list_for_each_entry(w, &codec->component.card->widgets, list) {
477 if (w->dapm != &codec->dapm)
479 if (strcmp(w->name, "LOUT1 PGA") == 0)
481 if (strcmp(w->name, "ROUT1 PGA") == 0)
483 if (strcmp(w->name, "OUT3 VMID") == 0)
490 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
493 struct snd_soc_codec *codec = codec_dai->codec;
496 /* set master/slave audio interface */
497 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
498 case SND_SOC_DAIFMT_CBM_CFM:
501 case SND_SOC_DAIFMT_CBS_CFS:
507 /* interface format */
508 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
509 case SND_SOC_DAIFMT_I2S:
512 case SND_SOC_DAIFMT_RIGHT_J:
514 case SND_SOC_DAIFMT_LEFT_J:
517 case SND_SOC_DAIFMT_DSP_A:
520 case SND_SOC_DAIFMT_DSP_B:
527 /* clock inversion */
528 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
529 case SND_SOC_DAIFMT_NB_NF:
531 case SND_SOC_DAIFMT_IB_IF:
534 case SND_SOC_DAIFMT_IB_NF:
537 case SND_SOC_DAIFMT_NB_IF:
545 snd_soc_write(codec, WM8960_IFACE1, iface);
564 static int wm8960_hw_params(struct snd_pcm_substream *substream,
565 struct snd_pcm_hw_params *params,
566 struct snd_soc_dai *dai)
568 struct snd_soc_codec *codec = dai->codec;
569 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
570 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
574 switch (params_width(params)) {
584 dev_err(codec->dev, "unsupported width %d\n",
585 params_width(params));
589 /* Update filters for the new rate */
590 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
591 wm8960->playback_fs = params_rate(params);
592 wm8960_set_deemph(codec);
594 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
595 if (alc_rates[i].rate == params_rate(params))
596 snd_soc_update_bits(codec,
602 snd_soc_write(codec, WM8960_IFACE1, iface);
606 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
608 struct snd_soc_codec *codec = dai->codec;
611 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
613 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
617 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
618 enum snd_soc_bias_level level)
620 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
623 case SND_SOC_BIAS_ON:
626 case SND_SOC_BIAS_PREPARE:
627 /* Set VMID to 2x50k */
628 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
631 case SND_SOC_BIAS_STANDBY:
632 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
633 regcache_sync(wm8960->regmap);
635 /* Enable anti-pop features */
636 snd_soc_write(codec, WM8960_APOP1,
637 WM8960_POBCTRL | WM8960_SOFT_ST |
638 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
640 /* Enable & ramp VMID at 2x50k */
641 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
645 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
648 /* Disable anti-pop features */
649 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
652 /* Set VMID to 2x250k */
653 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
656 case SND_SOC_BIAS_OFF:
657 /* Enable anti-pop features */
658 snd_soc_write(codec, WM8960_APOP1,
659 WM8960_POBCTRL | WM8960_SOFT_ST |
660 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
662 /* Disable VMID and VREF, let them discharge */
663 snd_soc_write(codec, WM8960_POWER1, 0);
668 codec->dapm.bias_level = level;
673 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
674 enum snd_soc_bias_level level)
676 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
680 case SND_SOC_BIAS_ON:
683 case SND_SOC_BIAS_PREPARE:
684 switch (codec->dapm.bias_level) {
685 case SND_SOC_BIAS_STANDBY:
686 /* Enable anti pop mode */
687 snd_soc_update_bits(codec, WM8960_APOP1,
688 WM8960_POBCTRL | WM8960_SOFT_ST |
690 WM8960_POBCTRL | WM8960_SOFT_ST |
693 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
695 if (wm8960->lout1 && wm8960->lout1->power)
696 reg |= WM8960_PWR2_LOUT1;
697 if (wm8960->rout1 && wm8960->rout1->power)
698 reg |= WM8960_PWR2_ROUT1;
699 if (wm8960->out3 && wm8960->out3->power)
700 reg |= WM8960_PWR2_OUT3;
701 snd_soc_update_bits(codec, WM8960_POWER2,
704 WM8960_PWR2_OUT3, reg);
706 /* Enable VMID at 2*50k */
707 snd_soc_update_bits(codec, WM8960_POWER1,
708 WM8960_VMID_MASK, 0x80);
714 snd_soc_update_bits(codec, WM8960_POWER1,
715 WM8960_VREF, WM8960_VREF);
720 case SND_SOC_BIAS_ON:
721 /* Enable anti-pop mode */
722 snd_soc_update_bits(codec, WM8960_APOP1,
723 WM8960_POBCTRL | WM8960_SOFT_ST |
725 WM8960_POBCTRL | WM8960_SOFT_ST |
728 /* Disable VMID and VREF */
729 snd_soc_update_bits(codec, WM8960_POWER1,
730 WM8960_VREF | WM8960_VMID_MASK, 0);
733 case SND_SOC_BIAS_OFF:
734 regcache_sync(wm8960->regmap);
741 case SND_SOC_BIAS_STANDBY:
742 switch (codec->dapm.bias_level) {
743 case SND_SOC_BIAS_PREPARE:
744 /* Disable HP discharge */
745 snd_soc_update_bits(codec, WM8960_APOP2,
746 WM8960_DISOP | WM8960_DRES_MASK,
749 /* Disable anti-pop features */
750 snd_soc_update_bits(codec, WM8960_APOP1,
751 WM8960_POBCTRL | WM8960_SOFT_ST |
753 WM8960_POBCTRL | WM8960_SOFT_ST |
762 case SND_SOC_BIAS_OFF:
766 codec->dapm.bias_level = level;
778 /* The size in bits of the pll divide multiplied by 10
779 * to allow rounding later */
780 #define FIXED_PLL_SIZE ((1 << 24) * 10)
782 static int pll_factors(unsigned int source, unsigned int target,
783 struct _pll_div *pll_div)
785 unsigned long long Kpart;
786 unsigned int K, Ndiv, Nmod;
788 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
790 /* Scale up target to PLL operating frequency */
793 Ndiv = target / source;
796 pll_div->pre_div = 1;
797 Ndiv = target / source;
799 pll_div->pre_div = 0;
801 if ((Ndiv < 6) || (Ndiv > 12)) {
802 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
807 Nmod = target % source;
808 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
810 do_div(Kpart, source);
812 K = Kpart & 0xFFFFFFFF;
814 /* Check if we need to round */
818 /* Move down to proper range now rounding is done */
823 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
824 pll_div->n, pll_div->k, pll_div->pre_div);
829 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
830 int source, unsigned int freq_in, unsigned int freq_out)
832 struct snd_soc_codec *codec = codec_dai->codec;
834 static struct _pll_div pll_div;
837 if (freq_in && freq_out) {
838 ret = pll_factors(freq_in, freq_out, &pll_div);
843 /* Disable the PLL: even if we are changing the frequency the
844 * PLL needs to be disabled while we do so. */
845 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
846 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
848 if (!freq_in || !freq_out)
851 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
852 reg |= pll_div.pre_div << 4;
858 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
859 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
860 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff);
862 snd_soc_write(codec, WM8960_PLL1, reg);
865 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
867 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
872 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
875 struct snd_soc_codec *codec = codec_dai->codec;
879 case WM8960_SYSCLKDIV:
880 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
881 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
884 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
885 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
887 case WM8960_OPCLKDIV:
888 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
889 snd_soc_write(codec, WM8960_PLL1, reg | div);
892 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
893 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
895 case WM8960_TOCLKSEL:
896 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
897 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
906 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
907 enum snd_soc_bias_level level)
909 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
911 return wm8960->set_bias_level(codec, level);
914 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
916 #define WM8960_FORMATS \
917 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
918 SNDRV_PCM_FMTBIT_S24_LE)
920 static const struct snd_soc_dai_ops wm8960_dai_ops = {
921 .hw_params = wm8960_hw_params,
922 .digital_mute = wm8960_mute,
923 .set_fmt = wm8960_set_dai_fmt,
924 .set_clkdiv = wm8960_set_dai_clkdiv,
925 .set_pll = wm8960_set_dai_pll,
928 static struct snd_soc_dai_driver wm8960_dai = {
929 .name = "wm8960-hifi",
931 .stream_name = "Playback",
934 .rates = WM8960_RATES,
935 .formats = WM8960_FORMATS,},
937 .stream_name = "Capture",
940 .rates = WM8960_RATES,
941 .formats = WM8960_FORMATS,},
942 .ops = &wm8960_dai_ops,
943 .symmetric_rates = 1,
946 static int wm8960_probe(struct snd_soc_codec *codec)
948 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
949 struct wm8960_data *pdata = &wm8960->pdata;
952 wm8960->set_bias_level = wm8960_set_bias_level_capless;
954 wm8960->set_bias_level = wm8960_set_bias_level_out3;
956 snd_soc_add_codec_controls(codec, wm8960_snd_controls,
957 ARRAY_SIZE(wm8960_snd_controls));
958 wm8960_add_widgets(codec);
963 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
964 .probe = wm8960_probe,
965 .set_bias_level = wm8960_set_bias_level,
966 .suspend_bias_off = true,
969 static const struct regmap_config wm8960_regmap = {
972 .max_register = WM8960_PLL4,
974 .reg_defaults = wm8960_reg_defaults,
975 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
976 .cache_type = REGCACHE_RBTREE,
978 .volatile_reg = wm8960_volatile,
981 static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
982 struct wm8960_data *pdata)
984 const struct device_node *np = i2c->dev.of_node;
986 if (of_property_read_bool(np, "wlf,capless"))
987 pdata->capless = true;
989 if (of_property_read_bool(np, "wlf,shared-lrclk"))
990 pdata->shared_lrclk = true;
993 static int wm8960_i2c_probe(struct i2c_client *i2c,
994 const struct i2c_device_id *id)
996 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
997 struct wm8960_priv *wm8960;
1000 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1005 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1006 if (IS_ERR(wm8960->regmap))
1007 return PTR_ERR(wm8960->regmap);
1010 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
1011 else if (i2c->dev.of_node)
1012 wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
1014 ret = wm8960_reset(wm8960->regmap);
1016 dev_err(&i2c->dev, "Failed to issue reset\n");
1020 if (wm8960->pdata.shared_lrclk) {
1021 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1024 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1030 /* Latch the update bits */
1031 regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
1032 regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
1033 regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
1034 regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
1035 regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
1036 regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
1037 regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
1038 regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
1039 regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
1040 regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
1042 i2c_set_clientdata(i2c, wm8960);
1044 ret = snd_soc_register_codec(&i2c->dev,
1045 &soc_codec_dev_wm8960, &wm8960_dai, 1);
1050 static int wm8960_i2c_remove(struct i2c_client *client)
1052 snd_soc_unregister_codec(&client->dev);
1056 static const struct i2c_device_id wm8960_i2c_id[] = {
1060 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1062 static const struct of_device_id wm8960_of_match[] = {
1063 { .compatible = "wlf,wm8960", },
1066 MODULE_DEVICE_TABLE(of, wm8960_of_match);
1068 static struct i2c_driver wm8960_i2c_driver = {
1071 .owner = THIS_MODULE,
1072 .of_match_table = wm8960_of_match,
1074 .probe = wm8960_i2c_probe,
1075 .remove = wm8960_i2c_remove,
1076 .id_table = wm8960_i2c_id,
1079 module_i2c_driver(wm8960_i2c_driver);
1081 MODULE_DESCRIPTION("ASoC WM8960 driver");
1082 MODULE_AUTHOR("Liam Girdwood");
1083 MODULE_LICENSE("GPL");