/* * wm9712.c  --  ALSA Soc WM9712 codec support * * Copyright 2006 Wolfson Microelectronics PLC. * Author: Liam Girdwood <lrg@slimlogic.co.uk> * *  This program is free software; you can redistribute  it and/or modify it *  under  the terms of  the GNU General  Public License as published by the *  Free Software Foundation;  either version 2 of the  License, or (at your *  option) any later version. */#include <linux/init.h>#include <linux/module.h>#include <linux/kernel.h>#include <linux/device.h>#include <sound/core.h>#include <sound/pcm.h>#include <sound/ac97_codec.h>#include <sound/initval.h>#include <sound/soc.h>#include <sound/soc-dapm.h>#include "wm9712.h"#define WM9712_VERSION "0.4"static unsigned int ac97_read(struct snd_soc_codec *codec,	unsigned int reg);static int ac97_write(struct snd_soc_codec *codec,	unsigned int reg, unsigned int val);/* * WM9712 register cache */static const u16 wm9712_reg[] = {	0x6174, 0x8000, 0x8000, 0x8000, /*  6 */	0x0f0f, 0xaaa0, 0xc008, 0x6808, /*  e */	0xe808, 0xaaa0, 0xad00, 0x8000, /* 16 */	0xe808, 0x3000, 0x8000, 0x0000, /* 1e */	0x0000, 0x0000, 0x0000, 0x000f, /* 26 */	0x0405, 0x0410, 0xbb80, 0xbb80, /* 2e */	0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */	0x0000, 0x2000, 0x0000, 0x0000, /* 3e */	0x0000, 0x0000, 0x0000, 0x0000, /* 46 */	0x0000, 0x0000, 0xf83e, 0xffff, /* 4e */	0x0000, 0x0000, 0x0000, 0xf83e, /* 56 */	0x0008, 0x0000, 0x0000, 0x0000, /* 5e */	0xb032, 0x3e00, 0x0000, 0x0000, /* 66 */	0x0000, 0x0000, 0x0000, 0x0000, /* 6e */	0x0000, 0x0000, 0x0000, 0x0006, /* 76 */	0x0001, 0x0000, 0x574d, 0x4c12, /* 7e */	0x0000, 0x0000 /* virtual hp mixers */};/* virtual HP mixers regs */#define HPL_MIXER	0x80#define HPR_MIXER	0x82static const char *wm9712_alc_select[] = {"None", "Left", "Right", "Stereo"};static const char *wm9712_alc_mux[] = {"Stereo", "Left", "Right", "None"};static const char *wm9712_out3_src[] = {"Left", "VREF", "Left + Right",	"Mono"};static const char *wm9712_spk_src[] = {"Speaker Mix", "Headphone Mix"};static const char *wm9712_rec_adc[] = {"Stereo", "Left", "Right", "Mute"};static const char *wm9712_base[] = {"Linear Control", "Adaptive Boost"};static const char *wm9712_rec_gain[] = {"+1.5dB Steps", "+0.75dB Steps"};static const char *wm9712_mic[] = {"Mic 1", "Differential", "Mic 2",	"Stereo"};static const char *wm9712_rec_sel[] = {"Mic", "NC", "NC", "Speaker Mixer",	"Line", "Headphone Mixer", "Phone Mixer", "Phone"};static const char *wm9712_ng_type[] = {"Constant Gain", "Mute"};static const char *wm9712_diff_sel[] = {"Mic", "Line"};static const struct soc_enum wm9712_enum[] = {SOC_ENUM_SINGLE(AC97_PCI_SVID, 14, 4, wm9712_alc_select),SOC_ENUM_SINGLE(AC97_VIDEO, 12, 4, wm9712_alc_mux),SOC_ENUM_SINGLE(AC97_AUX, 9, 4, wm9712_out3_src),SOC_ENUM_SINGLE(AC97_AUX, 8, 2, wm9712_spk_src),SOC_ENUM_SINGLE(AC97_REC_SEL, 12, 4, wm9712_rec_adc),SOC_ENUM_SINGLE(AC97_MASTER_TONE, 15, 2, wm9712_base),SOC_ENUM_DOUBLE(AC97_REC_GAIN, 14, 6, 2, wm9712_rec_gain),SOC_ENUM_SINGLE(AC97_MIC, 5, 4, wm9712_mic),SOC_ENUM_SINGLE(AC97_REC_SEL, 8, 8, wm9712_rec_sel),SOC_ENUM_SINGLE(AC97_REC_SEL, 0, 8, wm9712_rec_sel),SOC_ENUM_SINGLE(AC97_PCI_SVID, 5, 2, wm9712_ng_type),SOC_ENUM_SINGLE(0x5c, 8, 2, wm9712_diff_sel),};static const struct snd_kcontrol_new wm9712_snd_ac97_controls[] = {SOC_DOUBLE("Speaker Playback Volume", AC97_MASTER, 8, 0, 31, 1),SOC_SINGLE("Speaker Playback Switch", AC97_MASTER, 15, 1, 1),SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),SOC_SINGLE("Speaker Playback ZC Switch", AC97_MASTER, 7, 1, 0),SOC_SINGLE("Speaker Playback Invert Switch", AC97_MASTER, 6, 1, 0),SOC_SINGLE("Headphone Playback ZC Switch", AC97_HEADPHONE, 7, 1, 0),SOC_SINGLE("Mono Playback ZC Switch", AC97_MASTER_MONO, 7, 1, 0),SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),SOC_SINGLE("ALC Target Volume", AC97_CODEC_CLASS_REV, 12, 15, 0),SOC_SINGLE("ALC Hold Time", AC97_CODEC_CLASS_REV, 8, 15, 0),SOC_SINGLE("ALC Decay Time", AC97_CODEC_CLASS_REV, 4, 15, 0),SOC_SINGLE("ALC Attack Time", AC97_CODEC_CLASS_REV, 0, 15, 0),SOC_ENUM("ALC Function", wm9712_enum[0]),SOC_SINGLE("ALC Max Volume", AC97_PCI_SVID, 11, 7, 0),SOC_SINGLE("ALC ZC Timeout", AC97_PCI_SVID, 9, 3, 1),SOC_SINGLE("ALC ZC Switch", AC97_PCI_SVID, 8, 1, 0),SOC_SINGLE("ALC NG Switch", AC97_PCI_SVID, 7, 1, 0),SOC_ENUM("ALC NG Type", wm9712_enum[10]),SOC_SINGLE("ALC NG Threshold", AC97_PCI_SVID, 0, 31, 1),SOC_SINGLE("Mic Headphone  Volume", AC97_VIDEO, 12, 7, 1),SOC_SINGLE("ALC Headphone Volume", AC97_VIDEO, 7, 7, 1),SOC_SINGLE("Out3 Switch", AC97_AUX, 15, 1, 1),SOC_SINGLE("Out3 ZC Switch", AC97_AUX, 7, 1, 1),SOC_SINGLE("Out3 Volume", AC97_AUX, 0, 31, 1),SOC_SINGLE("PCBeep Bypass Headphone Volume", AC97_PC_BEEP, 12, 7, 1),SOC_SINGLE("PCBeep Bypass Speaker Volume", AC97_PC_BEEP, 8, 7, 1),SOC_SINGLE("PCBeep Bypass Phone Volume", AC97_PC_BEEP, 4, 7, 1),SOC_SINGLE("Aux Playback Headphone Volume", AC97_CD, 12, 7, 1),SOC_SINGLE("Aux Playback Speaker Volume", AC97_CD, 8, 7, 1),SOC_SINGLE("Aux Playback Phone Volume", AC97_CD, 4, 7, 1),SOC_SINGLE("Phone Volume", AC97_PHONE, 0, 15, 1),SOC_DOUBLE("Line Capture Volume", AC97_LINE, 8, 0, 31, 1),SOC_SINGLE("Capture 20dB Boost Switch", AC97_REC_SEL, 14, 1, 0),SOC_SINGLE("Capture to Phone 20dB Boost Switch", AC97_REC_SEL, 11, 1, 1),SOC_SINGLE("3D Upper Cut-off Switch", AC97_3D_CONTROL, 5, 1, 1),SOC_SINGLE("3D Lower Cut-off Switch", AC97_3D_CONTROL, 4, 1, 1),SOC_SINGLE("3D Playback Volume", AC97_3D_CONTROL, 0, 15, 0),SOC_ENUM("Bass Control", wm9712_enum[5]),SOC_SINGLE("Bass Cut-off Switch", AC97_MASTER_TONE, 12, 1, 1),SOC_SINGLE("Tone Cut-off Switch", AC97_MASTER_TONE, 4, 1, 1),SOC_SINGLE("Playback Attenuate (-6dB) Switch", AC97_MASTER_TONE, 6, 1, 0),SOC_SINGLE("Bass Volume", AC97_MASTER_TONE, 8, 15, 1),SOC_SINGLE("Treble Volume", AC97_MASTER_TONE, 0, 15, 1),SOC_SINGLE("Capture ADC Switch", AC97_REC_GAIN, 15, 1, 1),SOC_ENUM("Capture Volume Steps", wm9712_enum[6]),SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 63, 1),SOC_SINGLE("Capture ZC Switch", AC97_REC_GAIN, 7, 1, 0),SOC_SINGLE("Mic 1 Volume", AC97_MIC, 8, 31, 1),SOC_SINGLE("Mic 2 Volume", AC97_MIC, 0, 31, 1),SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 7, 1, 0),};/* We have to create a fake left and right HP mixers because * the codec only has a single control that is shared by both channels. * This makes it impossible to determine the audio path. */static int mixer_event(struct snd_soc_dapm_widget *w,	struct snd_kcontrol *k, int event){	u16 l, r, beep, line, phone, mic, pcm, aux;	l = ac97_read(w->codec, HPL_MIXER);	r = ac97_read(w->codec, HPR_MIXER);	beep = ac97_read(w->codec, AC97_PC_BEEP);	mic = ac97_read(w->codec, AC97_VIDEO);	phone = ac97_read(w->codec, AC97_PHONE);	line = ac97_read(w->codec, AC97_LINE);	pcm = ac97_read(w->codec, AC97_PCM);	aux = ac97_read(w->codec, AC97_CD);	if (l & 0x1 || r & 0x1)		ac97_write(w->codec, AC97_VIDEO, mic & 0x7fff);	else		ac97_write(w->codec, AC97_VIDEO, mic | 0x8000);	if (l & 0x2 || r & 0x2)		ac97_write(w->codec, AC97_PCM, pcm & 0x7fff);	else		ac97_write(w->codec, AC97_PCM, pcm | 0x8000);	if (l & 0x4 || r & 0x4)		ac97_write(w->codec, AC97_LINE, line & 0x7fff);	else		ac97_write(w->codec, AC97_LINE, line | 0x8000);	if (l & 0x8 || r & 0x8)		ac97_write(w->codec, AC97_PHONE, phone & 0x7fff);	else		ac97_write(w->codec, AC97_PHONE, phone | 0x8000);	if (l & 0x10 || r & 0x10)		ac97_write(w->codec, AC97_CD, aux & 0x7fff);	else		ac97_write(w->codec, AC97_CD, aux | 0x8000);	if (l & 0x20 || r & 0x20)		ac97_write(w->codec, AC97_PC_BEEP, beep & 0x7fff);	else		ac97_write(w->codec, AC97_PC_BEEP, beep | 0x8000);	return 0;}/* Left Headphone Mixers */static const struct snd_kcontrol_new wm9712_hpl_mixer_controls[] = {	SOC_DAPM_SINGLE("PCBeep Bypass Switch", HPL_MIXER, 5, 1, 0),	SOC_DAPM_SINGLE("Aux Playback Switch", HPL_MIXER, 4, 1, 0),	SOC_DAPM_SINGLE("Phone Bypass Switch", HPL_MIXER, 3, 1, 0),	SOC_DAPM_SINGLE("Line Bypass Switch", HPL_MIXER, 2, 1, 0),	SOC_DAPM_SINGLE("PCM Playback Switch", HPL_MIXER, 1, 1, 0),	SOC_DAPM_SINGLE("Mic Sidetone Switch", HPL_MIXER, 0, 1, 0),};/* Right Headphone Mixers */static const struct snd_kcontrol_new wm9712_hpr_mixer_controls[] = {	SOC_DAPM_SINGLE("PCBeep Bypass Switch", HPR_MIXER, 5, 1, 0),	SOC_DAPM_SINGLE("Aux Playback Switch", HPR_MIXER, 4, 1, 0),	SOC_DAPM_SINGLE("Phone Bypass Switch", HPR_MIXER, 3, 1, 0),	SOC_DAPM_SINGLE("Line Bypass Switch", HPR_MIXER, 2, 1, 0),	SOC_DAPM_SINGLE("PCM Playback Switch", HPR_MIXER, 1, 1, 0),	SOC_DAPM_SINGLE("Mic Sidetone Switch", HPR_MIXER, 0, 1, 0),};/* Speaker Mixer */static const struct snd_kcontrol_new wm9712_speaker_mixer_controls[] = {	SOC_DAPM_SINGLE("PCBeep Bypass Switch", AC97_PC_BEEP, 11, 1, 1),	SOC_DAPM_SINGLE("Aux Playback Switch", AC97_CD, 11, 1, 1),	SOC_DAPM_SINGLE("Phone Bypass Switch", AC97_PHONE, 14, 1, 1),	SOC_DAPM_SINGLE("Line Bypass Switch", AC97_LINE, 14, 1, 1),	SOC_DAPM_SINGLE("PCM Playback Switch", AC97_PCM, 14, 1, 1),};/* Phone Mixer */static const struct snd_kcontrol_new wm9712_phone_mixer_controls[] = {	SOC_DAPM_SINGLE("PCBeep Bypass Switch", AC97_PC_BEEP, 7, 1, 1),	SOC_DAPM_SINGLE("Aux Playback Switch", AC97_CD, 7, 1, 1),	SOC_DAPM_SINGLE("Line Bypass Switch", AC97_LINE, 13, 1, 1),	SOC_DAPM_SINGLE("PCM Playback Switch", AC97_PCM, 13, 1, 1),	SOC_DAPM_SINGLE("Mic 1 Sidetone Switch", AC97_MIC, 14, 1, 1),	SOC_DAPM_SINGLE("Mic 2 Sidetone Switch", AC97_MIC, 13, 1, 1),};/* ALC headphone mux */static const struct snd_kcontrol_new wm9712_alc_mux_controls =SOC_DAPM_ENUM("Route", wm9712_enum[1]);/* out 3 mux */static const struct snd_kcontrol_new wm9712_out3_mux_controls =SOC_DAPM_ENUM("Route", wm9712_enum[2]);/* spk mux */static const struct snd_kcontrol_new wm9712_spk_mux_controls =SOC_DAPM_ENUM("Route", wm9712_enum[3]);/* Capture to Phone mux */static const struct snd_kcontrol_new wm9712_capture_phone_mux_controls =SOC_DAPM_ENUM("Route", wm9712_enum[4]);/* Capture left select */static const struct snd_kcontrol_new wm9712_capture_selectl_controls =SOC_DAPM_ENUM("Route", wm9712_enum[8]);/* Capture right select */static const struct snd_kcontrol_new wm9712_capture_selectr_controls =SOC_DAPM_ENUM("Route", wm9712_enum[9]);/* Mic select */static const struct snd_kcontrol_new wm9712_mic_src_controls =SOC_DAPM_ENUM("Route", wm9712_enum[7]);/* diff select */static const struct snd_kcontrol_new wm9712_diff_sel_controls =SOC_DAPM_ENUM("Route", wm9712_enum[11]);static const struct snd_soc_dapm_widget wm9712_dapm_widgets[] = {SND_SOC_DAPM_MUX("ALC Sidetone Mux", SND_SOC_NOPM, 0, 0,	&wm9712_alc_mux_controls),SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0,	&wm9712_out3_mux_controls),SND_SOC_DAPM_MUX("Speaker Mux", SND_SOC_NOPM, 0, 0,	&wm9712_spk_mux_controls),SND_SOC_DAPM_MUX("Capture Phone Mux", SND_SOC_NOPM, 0, 0,	&wm9712_capture_phone_mux_controls),SND_SOC_DAPM_MUX("Left Capture Select", SND_SOC_NOPM, 0, 0,	&wm9712_capture_selectl_controls),SND_SOC_DAPM_MUX("Right Capture Select", SND_SOC_NOPM, 0, 0,	&wm9712_capture_selectr_controls),SND_SOC_DAPM_MUX("Mic Select Source", SND_SOC_NOPM, 0, 0,	&wm9712_mic_src_controls),SND_SOC_DAPM_MUX("Differential Source", SND_SOC_NOPM, 0, 0,	&wm9712_diff_sel_controls),SND_SOC_DAPM_MIXER("AC97 Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),SND_SOC_DAPM_MIXER_E("Left HP Mixer", AC97_INT_PAGING, 9, 1,	&wm9712_hpl_mixer_controls[0], ARRAY_SIZE(wm9712_hpl_mixer_controls),	mixer_event, SND_SOC_DAPM_POST_REG),SND_SOC_DAPM_MIXER_E("Right HP Mixer", AC97_INT_PAGING, 8, 1,	&wm9712_hpr_mixer_controls[0], ARRAY_SIZE(wm9712_hpr_mixer_controls),	 mixer_event, SND_SOC_DAPM_POST_REG),SND_SOC_DAPM_MIXER("Phone Mixer", AC97_INT_PAGING, 6, 1,	&wm9712_phone_mixer_controls[0], ARRAY_SIZE(wm9712_phone_mixer_controls)),SND_SOC_DAPM_MIXER("Speaker Mixer", AC97_INT_PAGING, 7, 1,	&wm9712_speaker_mixer_controls[0],	ARRAY_SIZE(wm9712_speaker_mixer_controls)),SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", AC97_INT_PAGING, 14, 1),SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", AC97_INT_PAGING, 13, 1),SND_SOC_DAPM_DAC("Aux DAC", "Aux Playback", SND_SOC_NOPM, 0, 0),SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", AC97_INT_PAGING, 12, 1),SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", AC97_INT_PAGING, 11, 1),SND_SOC_DAPM_PGA("Headphone PGA", AC97_INT_PAGING, 4, 1, NULL, 0),SND_SOC_DAPM_PGA("Speaker PGA", AC97_INT_PAGING, 3, 1, NULL, 0),SND_SOC_DAPM_PGA("Out 3 PGA", AC97_INT_PAGING, 5, 1, NULL, 0),SND_SOC_DAPM_PGA("Line PGA", AC97_INT_PAGING, 2, 1, NULL, 0),SND_SOC_DAPM_PGA("Phone PGA", AC97_INT_PAGING, 1, 1, NULL, 0),SND_SOC_DAPM_PGA("Mic PGA", AC97_INT_PAGING, 0, 1, NULL, 0),SND_SOC_DAPM_MICBIAS("Mic Bias", AC97_INT_PAGING, 10, 1),SND_SOC_DAPM_OUTPUT("MONOOUT"),SND_SOC_DAPM_OUTPUT("HPOUTL"),SND_SOC_DAPM_OUTPUT("HPOUTR"),SND_SOC_DAPM_OUTPUT("LOUT2"),SND_SOC_DAPM_OUTPUT("ROUT2"),SND_SOC_DAPM_OUTPUT("OUT3"),SND_SOC_DAPM_INPUT("LINEINL"),SND_SOC_DAPM_INPUT("LINEINR"),SND_SOC_DAPM_INPUT("PHONE"),SND_SOC_DAPM_INPUT("PCBEEP"),SND_SOC_DAPM_INPUT("MIC1"),SND_SOC_DAPM_INPUT("MIC2"),};static const struct snd_soc_dapm_route audio_map[] = {	/* virtual mixer - mixes left & right channels for spk and mono */	{"AC97 Mixer", NULL, "Left DAC"},	{"AC97 Mixer", NULL, "Right DAC"},	/* Left HP mixer */	{"Left HP Mixer", "PCBeep Bypass Switch", "PCBEEP"},	{"Left HP Mixer", "Aux Playback Switch",  "Aux DAC"},	{"Left HP Mixer", "Phone Bypass Switch",  "Phone PGA"},	{"Left HP Mixer", "Line Bypass Switch",   "Line PGA"},	{"Left HP Mixer", "PCM Playback Switch",  "Left DAC"},	{"Left HP Mixer", "Mic Sidetone Switch",  "Mic PGA"},	{"Left HP Mixer", NULL,  "ALC Sidetone Mux"},	/* Right HP mixer */	{"Right HP Mixer", "PCBeep Bypass Switch", "PCBEEP"},	{"Right HP Mixer", "Aux Playback Switch",  "Aux DAC"},	{"Right HP Mixer", "Phone Bypass Switch",  "Phone PGA"},	{"Right HP Mixer", "Line Bypass Switch",   "Line PGA"},	{"Right HP Mixer", "PCM Playback Switch",  "Right DAC"},	{"Right HP Mixer", "Mic Sidetone Switch",  "Mic PGA"},	{"Right HP Mixer", NULL,  "ALC Sidetone Mux"},	/* speaker mixer */	{"Speaker Mixer", "PCBeep Bypass Switch", "PCBEEP"},	{"Speaker Mixer", "Line Bypass Switch",   "Line PGA"},	{"Speaker Mixer", "PCM Playback Switch",  "AC97 Mixer"},	{"Speaker Mixer", "Phone Bypass Switch",  "Phone PGA"},	{"Speaker Mixer", "Aux Playback Switch",  "Aux DAC"},	/* Phone mixer */	{"Phone Mixer", "PCBeep Bypass Switch",  "PCBEEP"},	{"Phone Mixer", "Line Bypass Switch",    "Line PGA"},	{"Phone Mixer", "Aux Playback Switch",   "Aux DAC"},	{"Phone Mixer", "PCM Playback Switch",   "AC97 Mixer"},	{"Phone Mixer", "Mic 1 Sidetone Switch", "Mic PGA"},	{"Phone Mixer", "Mic 2 Sidetone Switch", "Mic PGA"},	/* inputs */	{"Line PGA", NULL, "LINEINL"},