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* wm8960.c -- WM8960 ALSA SoC Audio driver
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* Copyright 2007-11 Wolfson Microelectronics, plc
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* Author: Liam Girdwood
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/initval.h>
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#include <sound/tlv.h>
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#include <sound/wm8960.h>
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#define WM8960_VMID_MASK 0x180
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#define WM8960_VREF 0x40
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#define WM8960_PWR2_LOUT1 0x40
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#define WM8960_PWR2_ROUT1 0x20
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#define WM8960_PWR2_OUT3 0x02
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/* R28 - Anti-pop 1 */
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#define WM8960_POBCTRL 0x80
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#define WM8960_BUFDCOPEN 0x10
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#define WM8960_BUFIOEN 0x08
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#define WM8960_SOFT_ST 0x04
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#define WM8960_HPSTBY 0x01
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/* R29 - Anti-pop 2 */
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#define WM8960_DISOP 0x40
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#define WM8960_DRES_MASK 0x30
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* wm8960 register cache
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* We can't read the WM8960 register space when we are
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* using 2 wire for device control, so we cache them instead.
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static const struct reg_default wm8960_reg_defaults[] = {
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static bool wm8960_volatile(struct device *dev, unsigned int reg)
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struct regmap *regmap;
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int (*set_bias_level)(struct snd_soc_codec *,
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enum snd_soc_bias_level level);
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struct snd_soc_dapm_widget *lout1;
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struct snd_soc_dapm_widget *rout1;
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struct snd_soc_dapm_widget *out3;
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struct wm8960_data pdata;
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#define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
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/* enumerated controls */
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static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
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"Right Inverted", "Stereo Inversion"};
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static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
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static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
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static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
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static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
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static const struct soc_enum wm8960_enum[] = {
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SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
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SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
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SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
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SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
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SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
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SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
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static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
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static int wm8960_set_deemph(struct snd_soc_codec *codec)
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struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
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/* If we're using deemphasis select the nearest available sample
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if (wm8960->deemph) {
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for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
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if (abs(deemph_settings[i] - wm8960->playback_fs) <
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abs(deemph_settings[best] - wm8960->playback_fs))
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dev_dbg(codec->dev, "Set deemphasis %d\n", val);
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return snd_soc_update_bits(codec, WM8960_DACCTL1,
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static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
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struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
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ucontrol->value.enumerated.item[0] = wm8960->deemph;
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static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
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struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
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int deemph = ucontrol->value.enumerated.item[0];
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wm8960->deemph = deemph;
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return wm8960_set_deemph(codec);
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static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
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static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
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static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
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static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
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static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
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static const struct snd_kcontrol_new wm8960_snd_controls[] = {
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SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
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SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
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SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
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SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
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WM8960_INBMIX1, 4, 7, 0, boost_tlv),
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SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
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WM8960_INBMIX1, 1, 7, 0, boost_tlv),
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SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
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WM8960_INBMIX2, 4, 7, 0, boost_tlv),
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SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
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WM8960_INBMIX2, 1, 7, 0, boost_tlv),
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SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
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SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
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SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
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SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
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SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
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SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
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SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
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SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
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SOC_ENUM("ADC Polarity", wm8960_enum[0]),
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SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
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SOC_ENUM("DAC Polarity", wm8960_enum[2]),
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SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
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wm8960_get_deemph, wm8960_put_deemph),
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SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
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SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
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SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
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SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
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SOC_ENUM("ALC Function", wm8960_enum[4]),
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SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
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SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
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SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
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SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
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SOC_ENUM("ALC Mode", wm8960_enum[5]),
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SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
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SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
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SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
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SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
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SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
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SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
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WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
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SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
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WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
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SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
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WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
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SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
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WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
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static const struct snd_kcontrol_new wm8960_lin_boost[] = {
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SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
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SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
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SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
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static const struct snd_kcontrol_new wm8960_lin[] = {
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SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
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static const struct snd_kcontrol_new wm8960_rin_boost[] = {
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SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
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SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
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SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
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static const struct snd_kcontrol_new wm8960_rin[] = {
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SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
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static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
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SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
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SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
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SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
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static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
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SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
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SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
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SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
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static const struct snd_kcontrol_new wm8960_mono_out[] = {
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SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
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SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
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static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
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SND_SOC_DAPM_INPUT("LINPUT1"),
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SND_SOC_DAPM_INPUT("RINPUT1"),
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SND_SOC_DAPM_INPUT("LINPUT2"),
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SND_SOC_DAPM_INPUT("RINPUT2"),
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SND_SOC_DAPM_INPUT("LINPUT3"),
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SND_SOC_DAPM_INPUT("RINPUT3"),
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SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
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wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
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SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
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wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
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SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
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wm8960_lin, ARRAY_SIZE(wm8960_lin)),
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SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
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wm8960_rin, ARRAY_SIZE(wm8960_rin)),
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SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
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SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
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SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
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SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
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SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
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&wm8960_loutput_mixer[0],
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ARRAY_SIZE(wm8960_loutput_mixer)),
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SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
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&wm8960_routput_mixer[0],
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ARRAY_SIZE(wm8960_routput_mixer)),
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SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
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SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
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SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
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SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
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SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
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SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
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SND_SOC_DAPM_OUTPUT("SPK_LP"),
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SND_SOC_DAPM_OUTPUT("SPK_LN"),
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SND_SOC_DAPM_OUTPUT("HP_L"),
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SND_SOC_DAPM_OUTPUT("HP_R"),
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SND_SOC_DAPM_OUTPUT("SPK_RP"),
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SND_SOC_DAPM_OUTPUT("SPK_RN"),
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SND_SOC_DAPM_OUTPUT("OUT3"),
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static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
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SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
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ARRAY_SIZE(wm8960_mono_out)),
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/* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
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static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
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SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
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static const struct snd_soc_dapm_route audio_paths[] = {
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{ "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
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{ "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
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{ "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
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{ "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
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{ "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
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{ "Left Input Mixer", NULL, "LINPUT2" },
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{ "Left Input Mixer", NULL, "LINPUT3" },
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{ "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
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{ "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
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{ "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
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{ "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
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{ "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
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{ "Right Input Mixer", NULL, "RINPUT2" },
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{ "Right Input Mixer", NULL, "LINPUT3" },
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{ "Left ADC", NULL, "Left Input Mixer" },
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{ "Right ADC", NULL, "Right Input Mixer" },
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{ "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
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{ "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
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{ "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
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{ "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
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{ "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
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{ "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
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{ "LOUT1 PGA", NULL, "Left Output Mixer" },
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{ "ROUT1 PGA", NULL, "Right Output Mixer" },
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{ "HP_L", NULL, "LOUT1 PGA" },
413
{ "HP_R", NULL, "ROUT1 PGA" },
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{ "Left Speaker PGA", NULL, "Left Output Mixer" },
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{ "Right Speaker PGA", NULL, "Right Output Mixer" },
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{ "Left Speaker Output", NULL, "Left Speaker PGA" },
419
{ "Right Speaker Output", NULL, "Right Speaker PGA" },
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{ "SPK_LN", NULL, "Left Speaker Output" },
422
{ "SPK_LP", NULL, "Left Speaker Output" },
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{ "SPK_RN", NULL, "Right Speaker Output" },
424
{ "SPK_RP", NULL, "Right Speaker Output" },
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static const struct snd_soc_dapm_route audio_paths_out3[] = {
428
{ "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
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{ "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
431
{ "OUT3", NULL, "Mono Output Mixer", }
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static const struct snd_soc_dapm_route audio_paths_capless[] = {
435
{ "HP_L", NULL, "OUT3 VMID" },
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{ "HP_R", NULL, "OUT3 VMID" },
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{ "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");