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);
208 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
209 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
211 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
213 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
216 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
219 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
221 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
224 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
226 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
228 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
229 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
231 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
232 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
233 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
235 SOC_ENUM("DAC Polarity", wm8960_enum[2]),
236 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
237 wm8960_get_deemph, wm8960_put_deemph),
239 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
240 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
241 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
242 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
244 SOC_ENUM("ALC Function", wm8960_enum[4]),
245 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
246 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
247 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
248 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
249 SOC_ENUM("ALC Mode", wm8960_enum[5]),
250 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
251 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
253 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
254 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
256 SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
259 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
260 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
261 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
262 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
263 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
264 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
265 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
266 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
269 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
270 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
271 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
272 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
275 static const struct snd_kcontrol_new wm8960_lin[] = {
276 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
279 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
280 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
281 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
282 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
285 static const struct snd_kcontrol_new wm8960_rin[] = {
286 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
289 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
290 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
291 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
292 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
295 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
296 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
297 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
298 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
301 static const struct snd_kcontrol_new wm8960_mono_out[] = {
302 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
303 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
306 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
307 SND_SOC_DAPM_INPUT("LINPUT1"),
308 SND_SOC_DAPM_INPUT("RINPUT1"),
309 SND_SOC_DAPM_INPUT("LINPUT2"),
310 SND_SOC_DAPM_INPUT("RINPUT2"),
311 SND_SOC_DAPM_INPUT("LINPUT3"),
312 SND_SOC_DAPM_INPUT("RINPUT3"),
314 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
316 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
317 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
318 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
319 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
321 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
322 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
323 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
324 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
326 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0),
327 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0),
329 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
330 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
332 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
333 &wm8960_loutput_mixer[0],
334 ARRAY_SIZE(wm8960_loutput_mixer)),
335 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
336 &wm8960_routput_mixer[0],
337 ARRAY_SIZE(wm8960_routput_mixer)),
339 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
340 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
342 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
343 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
345 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
346 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
348 SND_SOC_DAPM_OUTPUT("SPK_LP"),
349 SND_SOC_DAPM_OUTPUT("SPK_LN"),
350 SND_SOC_DAPM_OUTPUT("HP_L"),
351 SND_SOC_DAPM_OUTPUT("HP_R"),
352 SND_SOC_DAPM_OUTPUT("SPK_RP"),
353 SND_SOC_DAPM_OUTPUT("SPK_RN"),
354 SND_SOC_DAPM_OUTPUT("OUT3"),
357 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
358 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
360 ARRAY_SIZE(wm8960_mono_out)),
363 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
364 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
365 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
368 static const struct snd_soc_dapm_route audio_paths[] = {
369 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
370 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
371 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
373 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
374 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
375 { "Left Input Mixer", NULL, "LINPUT2" },
376 { "Left Input Mixer", NULL, "LINPUT3" },
378 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
379 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
380 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
382 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
383 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
384 { "Right Input Mixer", NULL, "RINPUT2" },
385 { "Right Input Mixer", NULL, "LINPUT3" },
387 { "Left ADC", NULL, "Left Input Mixer" },
388 { "Right ADC", NULL, "Right Input Mixer" },
390 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
391 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
392 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
394 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
395 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
396 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
398 { "LOUT1 PGA", NULL, "Left Output Mixer" },
399 { "ROUT1 PGA", NULL, "Right Output Mixer" },
401 { "HP_L", NULL, "LOUT1 PGA" },
402 { "HP_R", NULL, "ROUT1 PGA" },
404 { "Left Speaker PGA", NULL, "Left Output Mixer" },
405 { "Right Speaker PGA", NULL, "Right Output Mixer" },
407 { "Left Speaker Output", NULL, "Left Speaker PGA" },
408 { "Right Speaker Output", NULL, "Right Speaker PGA" },
410 { "SPK_LN", NULL, "Left Speaker Output" },
411 { "SPK_LP", NULL, "Left Speaker Output" },
412 { "SPK_RN", NULL, "Right Speaker Output" },
413 { "SPK_RP", NULL, "Right Speaker Output" },
416 static const struct snd_soc_dapm_route audio_paths_out3[] = {
417 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
418 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
420 { "OUT3", NULL, "Mono Output Mixer", }
423 static const struct snd_soc_dapm_route audio_paths_capless[] = {
424 { "HP_L", NULL, "OUT3 VMID" },
425 { "HP_R", NULL, "OUT3 VMID" },
427 { "OUT3 VMID", NULL, "Left Output Mixer" },
428 { "OUT3 VMID", NULL, "Right Output Mixer" },
431 static int wm8960_add_widgets(struct snd_soc_codec *codec)
433 struct wm8960_data *pdata = codec->dev->platform_data;
434 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
435 struct snd_soc_dapm_context *dapm = &codec->dapm;
436 struct snd_soc_dapm_widget *w;
438 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
439 ARRAY_SIZE(wm8960_dapm_widgets));
441 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
443 /* In capless mode OUT3 is used to provide VMID for the
444 * headphone outputs, otherwise it is used as a mono mixer.
446 if (pdata && pdata->capless) {
447 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
448 ARRAY_SIZE(wm8960_dapm_widgets_capless));
450 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
451 ARRAY_SIZE(audio_paths_capless));
453 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
454 ARRAY_SIZE(wm8960_dapm_widgets_out3));
456 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
457 ARRAY_SIZE(audio_paths_out3));
460 /* We need to power up the headphone output stage out of
461 * sequence for capless mode. To save scanning the widget
462 * list each time to find the desired power state do so now
463 * and save the result.
465 list_for_each_entry(w, &codec->card->widgets, list) {
466 if (w->dapm != &codec->dapm)
468 if (strcmp(w->name, "LOUT1 PGA") == 0)
470 if (strcmp(w->name, "ROUT1 PGA") == 0)
472 if (strcmp(w->name, "OUT3 VMID") == 0)
479 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
482 struct snd_soc_codec *codec = codec_dai->codec;
485 /* set master/slave audio interface */
486 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
487 case SND_SOC_DAIFMT_CBM_CFM:
490 case SND_SOC_DAIFMT_CBS_CFS:
496 /* interface format */
497 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
498 case SND_SOC_DAIFMT_I2S:
501 case SND_SOC_DAIFMT_RIGHT_J:
503 case SND_SOC_DAIFMT_LEFT_J:
506 case SND_SOC_DAIFMT_DSP_A:
509 case SND_SOC_DAIFMT_DSP_B:
516 /* clock inversion */
517 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
518 case SND_SOC_DAIFMT_NB_NF:
520 case SND_SOC_DAIFMT_IB_IF:
523 case SND_SOC_DAIFMT_IB_NF:
526 case SND_SOC_DAIFMT_NB_IF:
534 snd_soc_write(codec, WM8960_IFACE1, iface);
553 static int wm8960_hw_params(struct snd_pcm_substream *substream,
554 struct snd_pcm_hw_params *params,
555 struct snd_soc_dai *dai)
557 struct snd_soc_codec *codec = dai->codec;
558 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
559 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
560 snd_pcm_format_t format = params_format(params);
565 case SNDRV_PCM_FORMAT_S16_LE:
566 case SNDRV_PCM_FORMAT_S16_BE:
568 case SNDRV_PCM_FORMAT_S20_3LE:
569 case SNDRV_PCM_FORMAT_S20_3BE:
572 case SNDRV_PCM_FORMAT_S24_LE:
573 case SNDRV_PCM_FORMAT_S24_BE:
577 dev_err(codec->dev, "unsupported format %i\n", format);
581 /* Update filters for the new rate */
582 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
583 wm8960->playback_fs = params_rate(params);
584 wm8960_set_deemph(codec);
586 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
587 if (alc_rates[i].rate == params_rate(params))
588 snd_soc_update_bits(codec,
594 snd_soc_write(codec, WM8960_IFACE1, iface);
598 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
600 struct snd_soc_codec *codec = dai->codec;
603 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
605 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
609 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
610 enum snd_soc_bias_level level)
612 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
615 case SND_SOC_BIAS_ON:
618 case SND_SOC_BIAS_PREPARE:
619 /* Set VMID to 2x50k */
620 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
623 case SND_SOC_BIAS_STANDBY:
624 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
625 regcache_sync(wm8960->regmap);
627 /* Enable anti-pop features */
628 snd_soc_write(codec, WM8960_APOP1,
629 WM8960_POBCTRL | WM8960_SOFT_ST |
630 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
632 /* Enable & ramp VMID at 2x50k */
633 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
637 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
640 /* Disable anti-pop features */
641 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
644 /* Set VMID to 2x250k */
645 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
648 case SND_SOC_BIAS_OFF:
649 /* Enable anti-pop features */
650 snd_soc_write(codec, WM8960_APOP1,
651 WM8960_POBCTRL | WM8960_SOFT_ST |
652 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
654 /* Disable VMID and VREF, let them discharge */
655 snd_soc_write(codec, WM8960_POWER1, 0);
660 codec->dapm.bias_level = level;
665 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
666 enum snd_soc_bias_level level)
668 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
672 case SND_SOC_BIAS_ON:
675 case SND_SOC_BIAS_PREPARE:
676 switch (codec->dapm.bias_level) {
677 case SND_SOC_BIAS_STANDBY:
678 /* Enable anti pop mode */
679 snd_soc_update_bits(codec, WM8960_APOP1,
680 WM8960_POBCTRL | WM8960_SOFT_ST |
682 WM8960_POBCTRL | WM8960_SOFT_ST |
685 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
687 if (wm8960->lout1 && wm8960->lout1->power)
688 reg |= WM8960_PWR2_LOUT1;
689 if (wm8960->rout1 && wm8960->rout1->power)
690 reg |= WM8960_PWR2_ROUT1;
691 if (wm8960->out3 && wm8960->out3->power)
692 reg |= WM8960_PWR2_OUT3;
693 snd_soc_update_bits(codec, WM8960_POWER2,
696 WM8960_PWR2_OUT3, reg);
698 /* Enable VMID at 2*50k */
699 snd_soc_update_bits(codec, WM8960_POWER1,
700 WM8960_VMID_MASK, 0x80);
706 snd_soc_update_bits(codec, WM8960_POWER1,
707 WM8960_VREF, WM8960_VREF);
712 case SND_SOC_BIAS_ON:
713 /* Enable anti-pop mode */
714 snd_soc_update_bits(codec, WM8960_APOP1,
715 WM8960_POBCTRL | WM8960_SOFT_ST |
717 WM8960_POBCTRL | WM8960_SOFT_ST |
720 /* Disable VMID and VREF */
721 snd_soc_update_bits(codec, WM8960_POWER1,
722 WM8960_VREF | WM8960_VMID_MASK, 0);
725 case SND_SOC_BIAS_OFF:
726 regcache_sync(wm8960->regmap);
733 case SND_SOC_BIAS_STANDBY:
734 switch (codec->dapm.bias_level) {
735 case SND_SOC_BIAS_PREPARE:
736 /* Disable HP discharge */
737 snd_soc_update_bits(codec, WM8960_APOP2,
738 WM8960_DISOP | WM8960_DRES_MASK,
741 /* Disable anti-pop features */
742 snd_soc_update_bits(codec, WM8960_APOP1,
743 WM8960_POBCTRL | WM8960_SOFT_ST |
745 WM8960_POBCTRL | WM8960_SOFT_ST |
754 case SND_SOC_BIAS_OFF:
758 codec->dapm.bias_level = level;
770 /* The size in bits of the pll divide multiplied by 10
771 * to allow rounding later */
772 #define FIXED_PLL_SIZE ((1 << 24) * 10)
774 static int pll_factors(unsigned int source, unsigned int target,
775 struct _pll_div *pll_div)
777 unsigned long long Kpart;
778 unsigned int K, Ndiv, Nmod;
780 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
782 /* Scale up target to PLL operating frequency */
785 Ndiv = target / source;
788 pll_div->pre_div = 1;
789 Ndiv = target / source;
791 pll_div->pre_div = 0;
793 if ((Ndiv < 6) || (Ndiv > 12)) {
794 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
799 Nmod = target % source;
800 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
802 do_div(Kpart, source);
804 K = Kpart & 0xFFFFFFFF;
806 /* Check if we need to round */
810 /* Move down to proper range now rounding is done */
815 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
816 pll_div->n, pll_div->k, pll_div->pre_div);
821 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
822 int source, unsigned int freq_in, unsigned int freq_out)
824 struct snd_soc_codec *codec = codec_dai->codec;
826 static struct _pll_div pll_div;
829 if (freq_in && freq_out) {
830 ret = pll_factors(freq_in, freq_out, &pll_div);
835 /* Disable the PLL: even if we are changing the frequency the
836 * PLL needs to be disabled while we do so. */
837 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
838 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
840 if (!freq_in || !freq_out)
843 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
844 reg |= pll_div.pre_div << 4;
850 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
851 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
852 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
854 snd_soc_write(codec, WM8960_PLL1, reg);
857 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
859 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
864 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
867 struct snd_soc_codec *codec = codec_dai->codec;
871 case WM8960_SYSCLKDIV:
872 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
873 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
876 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
877 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
879 case WM8960_OPCLKDIV:
880 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
881 snd_soc_write(codec, WM8960_PLL1, reg | div);
884 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
885 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
887 case WM8960_TOCLKSEL:
888 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
889 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
898 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
899 enum snd_soc_bias_level level)
901 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
903 return wm8960->set_bias_level(codec, level);
906 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
908 #define WM8960_FORMATS \
909 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
910 SNDRV_PCM_FMTBIT_S24_LE)
912 static const struct snd_soc_dai_ops wm8960_dai_ops = {
913 .hw_params = wm8960_hw_params,
914 .digital_mute = wm8960_mute,
915 .set_fmt = wm8960_set_dai_fmt,
916 .set_clkdiv = wm8960_set_dai_clkdiv,
917 .set_pll = wm8960_set_dai_pll,
920 static struct snd_soc_dai_driver wm8960_dai = {
921 .name = "wm8960-hifi",
923 .stream_name = "Playback",
926 .rates = WM8960_RATES,
927 .formats = WM8960_FORMATS,},
929 .stream_name = "Capture",
932 .rates = WM8960_RATES,
933 .formats = WM8960_FORMATS,},
934 .ops = &wm8960_dai_ops,
935 .symmetric_rates = 1,
938 static int wm8960_suspend(struct snd_soc_codec *codec)
940 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
942 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
946 static int wm8960_resume(struct snd_soc_codec *codec)
948 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
950 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
954 static int wm8960_probe(struct snd_soc_codec *codec)
956 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
957 struct wm8960_data *pdata = dev_get_platdata(codec->dev);
960 wm8960->set_bias_level = wm8960_set_bias_level_out3;
963 dev_warn(codec->dev, "No platform data supplied\n");
966 wm8960->set_bias_level = wm8960_set_bias_level_capless;
969 ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
971 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
975 ret = wm8960_reset(codec);
977 dev_err(codec->dev, "Failed to issue reset\n");
981 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
983 /* Latch the update bits */
984 snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100);
985 snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100);
986 snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100);
987 snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100);
988 snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100);
989 snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100);
990 snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100);
991 snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100);
992 snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100);
993 snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100);
995 snd_soc_add_codec_controls(codec, wm8960_snd_controls,
996 ARRAY_SIZE(wm8960_snd_controls));
997 wm8960_add_widgets(codec);
1002 /* power down chip */
1003 static int wm8960_remove(struct snd_soc_codec *codec)
1005 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1007 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
1011 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
1012 .probe = wm8960_probe,
1013 .remove = wm8960_remove,
1014 .suspend = wm8960_suspend,
1015 .resume = wm8960_resume,
1016 .set_bias_level = wm8960_set_bias_level,
1019 static const struct regmap_config wm8960_regmap = {
1022 .max_register = WM8960_PLL4,
1024 .reg_defaults = wm8960_reg_defaults,
1025 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1026 .cache_type = REGCACHE_RBTREE,
1028 .volatile_reg = wm8960_volatile,
1031 static int wm8960_i2c_probe(struct i2c_client *i2c,
1032 const struct i2c_device_id *id)
1034 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1035 struct wm8960_priv *wm8960;
1038 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1043 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1044 if (IS_ERR(wm8960->regmap))
1045 return PTR_ERR(wm8960->regmap);
1047 if (pdata && pdata->shared_lrclk) {
1048 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1051 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1057 i2c_set_clientdata(i2c, wm8960);
1059 ret = snd_soc_register_codec(&i2c->dev,
1060 &soc_codec_dev_wm8960, &wm8960_dai, 1);
1065 static int wm8960_i2c_remove(struct i2c_client *client)
1067 snd_soc_unregister_codec(&client->dev);
1071 static const struct i2c_device_id wm8960_i2c_id[] = {
1075 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1077 static struct i2c_driver wm8960_i2c_driver = {
1080 .owner = THIS_MODULE,
1082 .probe = wm8960_i2c_probe,
1083 .remove = wm8960_i2c_remove,
1084 .id_table = wm8960_i2c_id,
1087 module_i2c_driver(wm8960_i2c_driver);
1089 MODULE_DESCRIPTION("ASoC WM8960 driver");
1090 MODULE_AUTHOR("Liam Girdwood");
1091 MODULE_LICENSE("GPL");