[mirror_ubuntu-bionic-kernel.git] / sound / soc / codecs / da7210.c

/*
 * DA7210 ALSA Soc codec driver
 *
 * Copyright (c) 2009 Dialog Semiconductor
 * Written by David Chen <Dajun.chen@diasemi.com>
 *
 * Copyright (C) 2009 Renesas Solutions Corp.
 * Cleanups by Kuninori Morimoto <morimoto.kuninori@renesas.com>
 *
 * Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S
 *
 * 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/delay.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>

/* DA7210 register space */
#define DA7210_STATUS			0x02
#define DA7210_STARTUP1			0x03
#define DA7210_MIC_L			0x07
#define DA7210_MIC_R			0x08
#define DA7210_INMIX_L			0x0D
#define DA7210_INMIX_R			0x0E
#define DA7210_ADC_HPF			0x0F
#define DA7210_ADC			0x10
#define DA7210_DAC_HPF			0x14
#define DA7210_DAC_L			0x15
#define DA7210_DAC_R			0x16
#define DA7210_DAC_SEL			0x17
#define DA7210_OUTMIX_L			0x1C
#define DA7210_OUTMIX_R			0x1D
#define DA7210_HP_L_VOL			0x21
#define DA7210_HP_R_VOL			0x22
#define DA7210_HP_CFG			0x23
#define DA7210_DAI_SRC_SEL		0x25
#define DA7210_DAI_CFG1			0x26
#define DA7210_DAI_CFG3			0x28
#define DA7210_PLL_DIV1			0x29
#define DA7210_PLL_DIV2			0x2A
#define DA7210_PLL_DIV3			0x2B
#define DA7210_PLL			0x2C
#define DA7210_A_HID_UNLOCK		0x8A
#define DA7210_A_TEST_UNLOCK		0x8B
#define DA7210_A_PLL1			0x90
#define DA7210_A_CP_MODE		0xA7

/* STARTUP1 bit fields */
#define DA7210_SC_MST_EN		(1 << 0)

/* MIC_L bit fields */
#define DA7210_MICBIAS_EN		(1 << 6)
#define DA7210_MIC_L_EN			(1 << 7)

/* MIC_R bit fields */
#define DA7210_MIC_R_EN			(1 << 7)

/* INMIX_L bit fields */
#define DA7210_IN_L_EN			(1 << 7)

/* INMIX_R bit fields */
#define DA7210_IN_R_EN			(1 << 7)

/* ADC bit fields */
#define DA7210_ADC_L_EN			(1 << 3)
#define DA7210_ADC_R_EN			(1 << 7)

/* DAC/ADC HPF fields */
#define DA7210_VOICE_F0_MASK		(0x7 << 4)
#define DA7210_VOICE_F0_25		(1 << 4)
#define DA7210_VOICE_EN			(1 << 7)

/* DAC_SEL bit fields */
#define DA7210_DAC_L_SRC_DAI_L		(4 << 0)
#define DA7210_DAC_L_EN			(1 << 3)
#define DA7210_DAC_R_SRC_DAI_R		(5 << 4)
#define DA7210_DAC_R_EN			(1 << 7)

/* OUTMIX_L bit fields */
#define DA7210_OUT_L_EN			(1 << 7)

/* OUTMIX_R bit fields */
#define DA7210_OUT_R_EN			(1 << 7)

/* HP_CFG bit fields */
#define DA7210_HP_2CAP_MODE		(1 << 1)
#define DA7210_HP_SENSE_EN		(1 << 2)
#define DA7210_HP_L_EN			(1 << 3)
#define DA7210_HP_MODE			(1 << 6)
#define DA7210_HP_R_EN			(1 << 7)

/* DAI_SRC_SEL bit fields */
#define DA7210_DAI_OUT_L_SRC		(6 << 0)
#define DA7210_DAI_OUT_R_SRC		(7 << 4)

/* DAI_CFG1 bit fields */
#define DA7210_DAI_WORD_S16_LE		(0 << 0)
#define DA7210_DAI_WORD_S20_3LE		(1 << 0)
#define DA7210_DAI_WORD_S24_LE		(2 << 0)
#define DA7210_DAI_WORD_S32_LE		(3 << 0)
#define DA7210_DAI_FLEN_64BIT		(1 << 2)
#define DA7210_DAI_MODE_SLAVE		(0 << 7)
#define DA7210_DAI_MODE_MASTER		(1 << 7)

/* DAI_CFG3 bit fields */
#define DA7210_DAI_FORMAT_I2SMODE	(0 << 0)
#define DA7210_DAI_FORMAT_LEFT_J	(1 << 0)
#define DA7210_DAI_FORMAT_RIGHT_J	(2 << 0)
#define DA7210_DAI_OE			(1 << 3)
#define DA7210_DAI_EN			(1 << 7)

/*PLL_DIV3 bit fields */
#define DA7210_MCLK_RANGE_10_20_MHZ	(1 << 4)
#define DA7210_PLL_BYP			(1 << 6)

/* PLL bit fields */
#define DA7210_PLL_FS_MASK		(0xF << 0)
#define DA7210_PLL_FS_8000		(0x1 << 0)
#define DA7210_PLL_FS_11025		(0x2 << 0)
#define DA7210_PLL_FS_12000		(0x3 << 0)
#define DA7210_PLL_FS_16000		(0x5 << 0)
#define DA7210_PLL_FS_22050		(0x6 << 0)
#define DA7210_PLL_FS_24000		(0x7 << 0)
#define DA7210_PLL_FS_32000		(0x9 << 0)
#define DA7210_PLL_FS_44100		(0xA << 0)
#define DA7210_PLL_FS_48000		(0xB << 0)
#define DA7210_PLL_FS_88200		(0xE << 0)
#define DA7210_PLL_FS_96000		(0xF << 0)
#define DA7210_PLL_EN			(0x1 << 7)

#define DA7210_VERSION "0.0.1"

/*
 * Playback Volume
 *
 * max		: 0x3F (+15.0 dB)
 *		   (1.5 dB step)
 * min		: 0x11 (-54.0 dB)
 * mute		: 0x10
 * reserved	: 0x00 - 0x0F
 *
 * Reserved area are considered as "mute".
 */
static const unsigned int hp_out_tlv[] = {
	TLV_DB_RANGE_HEAD(2),
	0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
	/* -54 dB to +15 dB */
	0x11, 0x3f, TLV_DB_SCALE_ITEM(-5400, 150, 0),
};

static const struct snd_kcontrol_new da7210_snd_controls[] = {

	SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
			 DA7210_HP_L_VOL, DA7210_HP_R_VOL,
			 0, 0x3F, 0, hp_out_tlv),
};

/* Codec private data */
struct da7210_priv {
	enum snd_soc_control_type control_type;
};

/*
 * Register cache
 */
static const u8 da7210_reg[] = {
	0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R0  - R7  */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,	/* R8  - RF  */
	0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54,	/* R10 - R17 */
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R18 - R1F */
	0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00,	/* R20 - R27 */
	0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00,	/* R28 - R2F */
	0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00,	/* R30 - R37 */
	0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00,	/* R38 - R3F */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R40 - R4F */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R48 - R4F */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R50 - R57 */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R58 - R5F */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R60 - R67 */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R68 - R6F */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R70 - R77 */
	0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00,	/* R78 - R7F */
	0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00,	/* R80 - R87 */
	0x00,						/* R88       */
};

static int da7210_volatile_register(struct snd_soc_codec *codec,
				    unsigned int reg)
{
	switch (reg) {
	case DA7210_STATUS:
		return 1;
	default:
		return 0;
	}
}
static int da7210_startup(struct snd_pcm_substream *substream,
			  struct snd_soc_dai *dai)
{
	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
	struct snd_soc_codec *codec = dai->codec;

	if (is_play) {
		/* Enable Out */
		snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10);
		snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10);

	} else {
		/* Volume 7 */
		snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7);
		snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7);

		/* Enable Mic */
		snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1);
		snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1);
	}

	return 0;
}

/*
 * Set PCM DAI word length.
 */
static int da7210_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->codec;
	u32 dai_cfg1;
	u32 hpf_reg, hpf_mask, hpf_value;
	u32 fs, bypass;

	/* set DAI source to Left and Right ADC */
	snd_soc_write(codec, DA7210_DAI_SRC_SEL,
		     DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);

	/* Enable DAI */
	snd_soc_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);

	dai_cfg1 = 0xFC & snd_soc_read(codec, DA7210_DAI_CFG1);

	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		dai_cfg1 |= DA7210_DAI_WORD_S16_LE;
		break;
	case SNDRV_PCM_FORMAT_S20_3LE:
		dai_cfg1 |= DA7210_DAI_WORD_S20_3LE;
		break;
	case SNDRV_PCM_FORMAT_S24_LE:
		dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
		break;
	case SNDRV_PCM_FORMAT_S32_LE:
		dai_cfg1 |= DA7210_DAI_WORD_S32_LE;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, DA7210_DAI_CFG1, dai_cfg1);

	hpf_reg = (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) ?
		DA7210_DAC_HPF : DA7210_ADC_HPF;

	switch (params_rate(params)) {
	case 8000:
		fs		= DA7210_PLL_FS_8000;
		hpf_mask	= DA7210_VOICE_F0_MASK	| DA7210_VOICE_EN;
		hpf_value	= DA7210_VOICE_F0_25	| DA7210_VOICE_EN;
		bypass		= DA7210_PLL_BYP;
		break;
	case 11025:
		fs		= DA7210_PLL_FS_11025;
		hpf_mask	= DA7210_VOICE_F0_MASK	| DA7210_VOICE_EN;
		hpf_value	= DA7210_VOICE_F0_25	| DA7210_VOICE_EN;
		bypass		= 0;
		break;
	case 12000:
		fs		= DA7210_PLL_FS_12000;
		hpf_mask	= DA7210_VOICE_F0_MASK	| DA7210_VOICE_EN;
		hpf_value	= DA7210_VOICE_F0_25	| DA7210_VOICE_EN;
		bypass		= DA7210_PLL_BYP;
		break;
	case 16000:
		fs		= DA7210_PLL_FS_16000;
		hpf_mask	= DA7210_VOICE_F0_MASK	| DA7210_VOICE_EN;
		hpf_value	= DA7210_VOICE_F0_25	| DA7210_VOICE_EN;
		bypass		= DA7210_PLL_BYP;
		break;
	case 22050:
		fs		= DA7210_PLL_FS_22050;
		hpf_mask	= DA7210_VOICE_EN;
		hpf_value	= 0;
		bypass		= 0;
		break;
	case 32000:
		fs		= DA7210_PLL_FS_32000;
		hpf_mask	= DA7210_VOICE_EN;
		hpf_value	= 0;
		bypass		= DA7210_PLL_BYP;
		break;
	case 44100:
		fs		= DA7210_PLL_FS_44100;
		hpf_mask	= DA7210_VOICE_EN;
		hpf_value	= 0;
		bypass		= 0;
		break;
	case 48000:
		fs		= DA7210_PLL_FS_48000;
		hpf_mask	= DA7210_VOICE_EN;
		hpf_value	= 0;
		bypass		= DA7210_PLL_BYP;
		break;
	case 88200:
		fs		= DA7210_PLL_FS_88200;
		hpf_mask	= DA7210_VOICE_EN;
		hpf_value	= 0;
		bypass		= 0;
		break;
	case 96000:
		fs		= DA7210_PLL_FS_96000;
		hpf_mask	= DA7210_VOICE_EN;
		hpf_value	= 0;
		bypass		= DA7210_PLL_BYP;
		break;
	default:
		return -EINVAL;
	}

	/* Disable active mode */
	snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);

	snd_soc_update_bits(codec, hpf_reg, hpf_mask, hpf_value);
	snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_FS_MASK, fs);
	snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, bypass);

	/* Enable active mode */
	snd_soc_update_bits(codec, DA7210_STARTUP1,
			    DA7210_SC_MST_EN, DA7210_SC_MST_EN);

	return 0;
}

/*
 * Set DAI mode and Format
 */
static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u32 dai_cfg1;
	u32 dai_cfg3;

	dai_cfg1 = 0x7f & snd_soc_read(codec, DA7210_DAI_CFG1);
	dai_cfg3 = 0xfc & snd_soc_read(codec, DA7210_DAI_CFG3);

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		dai_cfg1 |= DA7210_DAI_MODE_MASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
		dai_cfg1 |= DA7210_DAI_MODE_SLAVE;
		break;
	default:
		return -EINVAL;
	}

	/* FIXME
	 *
	 * It support I2S only now
	 */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		dai_cfg3 |= DA7210_DAI_FORMAT_LEFT_J;
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		dai_cfg3 |= DA7210_DAI_FORMAT_RIGHT_J;
		break;
	default:
		return -EINVAL;
	}

	/* FIXME
	 *
	 * It support 64bit data transmission only now
	 */
	dai_cfg1 |= DA7210_DAI_FLEN_64BIT;

	snd_soc_write(codec, DA7210_DAI_CFG1, dai_cfg1);
	snd_soc_write(codec, DA7210_DAI_CFG3, dai_cfg3);

	return 0;
}

#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)

/* DAI operations */
static struct snd_soc_dai_ops da7210_dai_ops = {
	.startup	= da7210_startup,
	.hw_params	= da7210_hw_params,
	.set_fmt	= da7210_set_dai_fmt,
};

static struct snd_soc_dai_driver da7210_dai = {
	.name = "da7210-hifi",
	/* playback capabilities */
	.playback = {
		.stream_name = "Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_96000,
		.formats = DA7210_FORMATS,
	},
	/* capture capabilities */
	.capture = {
		.stream_name = "Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_96000,
		.formats = DA7210_FORMATS,
	},
	.ops = &da7210_dai_ops,
	.symmetric_rates = 1,
};

static int da7210_probe(struct snd_soc_codec *codec)
{
	struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
	int ret;

	dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);

	ret = snd_soc_codec_set_cache_io(codec, 8, 8, da7210->control_type);
	if (ret < 0) {
		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
		return ret;
	}

	/* FIXME
	 *
	 * This driver use fixed value here
	 * And below settings expects MCLK = 12.288MHz
	 *
	 * When you select different MCLK, please check...
	 *      DA7210_PLL_DIV1 val
	 *      DA7210_PLL_DIV2 val
	 *      DA7210_PLL_DIV3 val
	 *      DA7210_PLL_DIV3 :: DA7210_MCLK_RANGExxx
	 */

	/*
	 * make sure that DA7210 use bypass mode before start up
	 */
	snd_soc_write(codec, DA7210_STARTUP1, 0);
	snd_soc_write(codec, DA7210_PLL_DIV3,
		     DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);

	/*
	 * ADC settings
	 */

	/* Enable Left & Right MIC PGA and Mic Bias */
	snd_soc_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
	snd_soc_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);

	/* Enable Left and Right input PGA */
	snd_soc_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
	snd_soc_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);

	/* Enable Left and Right ADC */
	snd_soc_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);

	/*
	 * DAC settings
	 */

	/* Enable Left and Right DAC */
	snd_soc_write(codec, DA7210_DAC_SEL,
		     DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN |
		     DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN);

	/* Enable Left and Right out PGA */
	snd_soc_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
	snd_soc_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);

	/* Enable Left and Right HeadPhone PGA */
	snd_soc_write(codec, DA7210_HP_CFG,
		     DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN |
		     DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN);

	/* Diable PLL and bypass it */
	snd_soc_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);

	/*
	 * If 48kHz sound came, it use bypass mode,
	 * and when it is 44.1kHz, it use PLL.
	 *
	 * This time, this driver sets PLL always ON
	 * and controls bypass/PLL mode by switching
	 * DA7210_PLL_DIV3 :: DA7210_PLL_BYP bit.
	 *   see da7210_hw_params
	 */
	snd_soc_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
	snd_soc_write(codec, DA7210_PLL_DIV2, 0x99);
	snd_soc_write(codec, DA7210_PLL_DIV3, 0x0A |
		     DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
	snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);

	/* As suggested by Dialog */
	snd_soc_write(codec, DA7210_A_HID_UNLOCK,	0x8B); /* unlock */
	snd_soc_write(codec, DA7210_A_TEST_UNLOCK,	0xB4);
	snd_soc_write(codec, DA7210_A_PLL1,		0x01);
	snd_soc_write(codec, DA7210_A_CP_MODE,		0x7C);
	snd_soc_write(codec, DA7210_A_HID_UNLOCK,	0x00); /* re-lock */
	snd_soc_write(codec, DA7210_A_TEST_UNLOCK,	0x00);

	/* Activate all enabled subsystem */
	snd_soc_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);

	dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);

	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_da7210 = {
	.probe			= da7210_probe,
	.reg_cache_size		= ARRAY_SIZE(da7210_reg),
	.reg_word_size		= sizeof(u8),
	.reg_cache_default	= da7210_reg,
	.volatile_register	= da7210_volatile_register,

	.controls		= da7210_snd_controls,
	.num_controls		= ARRAY_SIZE(da7210_snd_controls),
};

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
			   	      const struct i2c_device_id *id)
{
	struct da7210_priv *da7210;
	int ret;

	da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL);
	if (!da7210)
		return -ENOMEM;

	i2c_set_clientdata(i2c, da7210);
	da7210->control_type = SND_SOC_I2C;

	ret =  snd_soc_register_codec(&i2c->dev,
			&soc_codec_dev_da7210, &da7210_dai, 1);
	if (ret < 0)
		kfree(da7210);

	return ret;
}

static int __devexit da7210_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);
	kfree(i2c_get_clientdata(client));
	return 0;
}

static const struct i2c_device_id da7210_i2c_id[] = {
	{ "da7210", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);

/* I2C codec control layer */
static struct i2c_driver da7210_i2c_driver = {
	.driver = {
		.name = "da7210-codec",
		.owner = THIS_MODULE,
	},
	.probe		= da7210_i2c_probe,
	.remove		= __devexit_p(da7210_i2c_remove),
	.id_table	= da7210_i2c_id,
};
#endif

static int __init da7210_modinit(void)
{
	int ret = 0;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
	ret = i2c_add_driver(&da7210_i2c_driver);
#endif
	return ret;
}
module_init(da7210_modinit);

static void __exit da7210_exit(void)
{
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
	i2c_del_driver(&da7210_i2c_driver);
#endif
}
module_exit(da7210_exit);

MODULE_DESCRIPTION("ASoC DA7210 driver");
MODULE_AUTHOR("David Chen, Kuninori Morimoto");
MODULE_LICENSE("GPL");
Commit	Line	Data
98615454 KM	1	/*
	2	* DA7210 ALSA Soc codec driver
	3	*
	4	* Copyright (c) 2009 Dialog Semiconductor
	5	* Written by David Chen <Dajun.chen@diasemi.com>
	6	*
	7	* Copyright (C) 2009 Renesas Solutions Corp.
	8	* Cleanups by Kuninori Morimoto <morimoto.kuninori@renesas.com>
	9	*
	10	* Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S
	11	*
	12	* This program is free software; you can redistribute it and/or modify it
	13	* under the terms of the GNU General Public License as published by the
	14	* Free Software Foundation; either version 2 of the License, or (at your
	15	* option) any later version.
	16	*/
	17
98615454	18	#include <linux/delay.h>
98615454 KM	19	#include <linux/i2c.h>
98615454 KM	20	#include <linux/platform_device.h>
5a0e3ad6	21	#include <linux/slab.h>
98615454 KM	22	#include <sound/pcm.h>
98615454 KM	23	#include <sound/pcm_params.h>
ce6120cc	24	#include <sound/soc.h>
98615454	25	#include <sound/initval.h>
a7e7cd5b	26	#include <sound/tlv.h>
98615454	27
98615454 KM	28	/* DA7210 register space */
	29	#define DA7210_STATUS 0x02
	30	#define DA7210_STARTUP1 0x03
	31	#define DA7210_MIC_L 0x07
	32	#define DA7210_MIC_R 0x08
	33	#define DA7210_INMIX_L 0x0D
	34	#define DA7210_INMIX_R 0x0E
	35	#define DA7210_ADC_HPF 0x0F
	36	#define DA7210_ADC 0x10
	37	#define DA7210_DAC_HPF 0x14
	38	#define DA7210_DAC_L 0x15
	39	#define DA7210_DAC_R 0x16
	40	#define DA7210_DAC_SEL 0x17
	41	#define DA7210_OUTMIX_L 0x1C
	42	#define DA7210_OUTMIX_R 0x1D
	43	#define DA7210_HP_L_VOL 0x21
	44	#define DA7210_HP_R_VOL 0x22
	45	#define DA7210_HP_CFG 0x23
	46	#define DA7210_DAI_SRC_SEL 0x25
	47	#define DA7210_DAI_CFG1 0x26
	48	#define DA7210_DAI_CFG3 0x28
960b3b4b KM	49	#define DA7210_PLL_DIV1 0x29
960b3b4b KM	50	#define DA7210_PLL_DIV2 0x2A
98615454 KM	51	#define DA7210_PLL_DIV3 0x2B
98615454 KM	52	#define DA7210_PLL 0x2C
960b3b4b KM	53	#define DA7210_A_HID_UNLOCK 0x8A
	54	#define DA7210_A_TEST_UNLOCK 0x8B
	55	#define DA7210_A_PLL1 0x90
	56	#define DA7210_A_CP_MODE 0xA7
98615454 KM	57
	58	/* STARTUP1 bit fields */
	59	#define DA7210_SC_MST_EN (1 << 0)
	60
	61	/* MIC_L bit fields */
	62	#define DA7210_MICBIAS_EN (1 << 6)
	63	#define DA7210_MIC_L_EN (1 << 7)
	64
	65	/* MIC_R bit fields */
	66	#define DA7210_MIC_R_EN (1 << 7)
	67
	68	/* INMIX_L bit fields */
	69	#define DA7210_IN_L_EN (1 << 7)
	70
	71	/* INMIX_R bit fields */
	72	#define DA7210_IN_R_EN (1 << 7)
	73
98615454 KM	74	/* ADC bit fields */
	75	#define DA7210_ADC_L_EN (1 << 3)
	76	#define DA7210_ADC_R_EN (1 << 7)
	77
3a9d6202 KM	78	/* DAC/ADC HPF fields */
	79	#define DA7210_VOICE_F0_MASK (0x7 << 4)
	80	#define DA7210_VOICE_F0_25 (1 << 4)
	81	#define DA7210_VOICE_EN (1 << 7)
c2151433	82
98615454 KM	83	/* DAC_SEL bit fields */
	84	#define DA7210_DAC_L_SRC_DAI_L (4 << 0)
	85	#define DA7210_DAC_L_EN (1 << 3)
	86	#define DA7210_DAC_R_SRC_DAI_R (5 << 4)
	87	#define DA7210_DAC_R_EN (1 << 7)
	88
	89	/* OUTMIX_L bit fields */
	90	#define DA7210_OUT_L_EN (1 << 7)
	91
	92	/* OUTMIX_R bit fields */
	93	#define DA7210_OUT_R_EN (1 << 7)
	94
	95	/* HP_CFG bit fields */
	96	#define DA7210_HP_2CAP_MODE (1 << 1)
	97	#define DA7210_HP_SENSE_EN (1 << 2)
	98	#define DA7210_HP_L_EN (1 << 3)
	99	#define DA7210_HP_MODE (1 << 6)
	100	#define DA7210_HP_R_EN (1 << 7)
	101
	102	/* DAI_SRC_SEL bit fields */
	103	#define DA7210_DAI_OUT_L_SRC (6 << 0)
	104	#define DA7210_DAI_OUT_R_SRC (7 << 4)
	105
	106	/* DAI_CFG1 bit fields */
	107	#define DA7210_DAI_WORD_S16_LE (0 << 0)
0f8ea586	108	#define DA7210_DAI_WORD_S20_3LE (1 << 0)
98615454	109	#define DA7210_DAI_WORD_S24_LE (2 << 0)
0f8ea586	110	#define DA7210_DAI_WORD_S32_LE (3 << 0)
98615454	111	#define DA7210_DAI_FLEN_64BIT (1 << 2)
0f8ea586	112	#define DA7210_DAI_MODE_SLAVE (0 << 7)
98615454 KM	113	#define DA7210_DAI_MODE_MASTER (1 << 7)
	114
	115	/* DAI_CFG3 bit fields */
	116	#define DA7210_DAI_FORMAT_I2SMODE (0 << 0)
0f8ea586 AC	117	#define DA7210_DAI_FORMAT_LEFT_J (1 << 0)
0f8ea586 AC	118	#define DA7210_DAI_FORMAT_RIGHT_J (2 << 0)
98615454 KM	119	#define DA7210_DAI_OE (1 << 3)
	120	#define DA7210_DAI_EN (1 << 7)
	121
	122	/PLL_DIV3 bit fields /
	123	#define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4)
	124	#define DA7210_PLL_BYP (1 << 6)
	125
	126	/* PLL bit fields */
3a9d6202 KM	127	#define DA7210_PLL_FS_MASK (0xF << 0)
3a9d6202 KM	128	#define DA7210_PLL_FS_8000 (0x1 << 0)
960b3b4b	129	#define DA7210_PLL_FS_11025 (0x2 << 0)
3a9d6202 KM	130	#define DA7210_PLL_FS_12000 (0x3 << 0)
3a9d6202 KM	131	#define DA7210_PLL_FS_16000 (0x5 << 0)
960b3b4b	132	#define DA7210_PLL_FS_22050 (0x6 << 0)
3a9d6202 KM	133	#define DA7210_PLL_FS_24000 (0x7 << 0)
3a9d6202 KM	134	#define DA7210_PLL_FS_32000 (0x9 << 0)
960b3b4b	135	#define DA7210_PLL_FS_44100 (0xA << 0)
3a9d6202	136	#define DA7210_PLL_FS_48000 (0xB << 0)
960b3b4b	137	#define DA7210_PLL_FS_88200 (0xE << 0)
3a9d6202	138	#define DA7210_PLL_FS_96000 (0xF << 0)
960b3b4b	139	#define DA7210_PLL_EN (0x1 << 7)
98615454 KM	140
	141	#define DA7210_VERSION "0.0.1"
	142
a7e7cd5b KM	143	/*
	144	* Playback Volume
	145	*
	146	* max : 0x3F (+15.0 dB)
	147	* (1.5 dB step)
	148	* min : 0x11 (-54.0 dB)
	149	* mute : 0x10
	150	* reserved : 0x00 - 0x0F
	151	*
a7e7cd5b	152	* Reserved area are considered as "mute".
a7e7cd5b	153	*/
7a0e67b6 AC	154	static const unsigned int hp_out_tlv[] = {
	155	TLV_DB_RANGE_HEAD(2),
	156	0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
	157	/* -54 dB to +15 dB */
	158	0x11, 0x3f, TLV_DB_SCALE_ITEM(-5400, 150, 0),
	159	};
a7e7cd5b KM	160
	161	static const struct snd_kcontrol_new da7210_snd_controls[] = {
	162
	163	SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
	164	DA7210_HP_L_VOL, DA7210_HP_R_VOL,
	165	0, 0x3F, 0, hp_out_tlv),
	166	};
	167
98615454 KM	168	/* Codec private data */
98615454 KM	169	struct da7210_priv {
f0fba2ad	170	enum snd_soc_control_type control_type;
98615454 KM	171	};
98615454 KM	172
98615454 KM	173	/*
	174	* Register cache
	175	*/
	176	static const u8 da7210_reg[] = {
	177	0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0 - R7 */
	178	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8 - RF */
	179	0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */
	180	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */
	181	0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */
	182	0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */
	183	0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */
	184	0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */
	185	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */
	186	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */
	187	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */
	188	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */
	189	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */
	190	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */
	191	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */
	192	0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */
	193	0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */
	194	0x00, /* R88 */
	195	};
	196
40a49710 AL	197	static int da7210_volatile_register(struct snd_soc_codec *codec,
40a49710 AL	198	unsigned int reg)
98615454	199	{
40a49710 AL	200	switch (reg) {
	201	case DA7210_STATUS:
	202	return 1;
	203	default:
	204	return 0;
	205	}
98615454	206	}
98615454 KM	207	static int da7210_startup(struct snd_pcm_substream *substream,
	208	struct snd_soc_dai *dai)
	209	{
	210	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
	211	struct snd_soc_codec *codec = dai->codec;
	212
	213	if (is_play) {
98615454 KM	214	/* Enable Out */
	215	snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10);
	216	snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10);
	217
	218	} else {
	219	/* Volume 7 */
	220	snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7);
	221	snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7);
	222
	223	/* Enable Mic */
	224	snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1);
	225	snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1);
	226	}
	227
	228	return 0;
	229	}
	230
	231	/*
	232	* Set PCM DAI word length.
	233	*/
	234	static int da7210_hw_params(struct snd_pcm_substream *substream,
	235	struct snd_pcm_hw_params *params,
	236	struct snd_soc_dai *dai)
	237	{
	238	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	239	struct snd_soc_codec *codec = rtd->codec;
98615454	240	u32 dai_cfg1;
3a9d6202	241	u32 hpf_reg, hpf_mask, hpf_value;
960b3b4b	242	u32 fs, bypass;
98615454 KM	243
98615454 KM	244	/* set DAI source to Left and Right ADC */
40a49710	245	snd_soc_write(codec, DA7210_DAI_SRC_SEL,
98615454 KM	246	DA7210_DAI_OUT_R_SRC \| DA7210_DAI_OUT_L_SRC);
	247
	248	/* Enable DAI */
40a49710	249	snd_soc_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE \| DA7210_DAI_EN);
98615454	250
40a49710	251	dai_cfg1 = 0xFC & snd_soc_read(codec, DA7210_DAI_CFG1);
98615454 KM	252
	253	switch (params_format(params)) {
	254	case SNDRV_PCM_FORMAT_S16_LE:
	255	dai_cfg1 \|= DA7210_DAI_WORD_S16_LE;
	256	break;
0f8ea586 AC	257	case SNDRV_PCM_FORMAT_S20_3LE:
	258	dai_cfg1 \|= DA7210_DAI_WORD_S20_3LE;
	259	break;
98615454 KM	260	case SNDRV_PCM_FORMAT_S24_LE:
	261	dai_cfg1 \|= DA7210_DAI_WORD_S24_LE;
	262	break;
0f8ea586 AC	263	case SNDRV_PCM_FORMAT_S32_LE:
	264	dai_cfg1 \|= DA7210_DAI_WORD_S32_LE;
	265	break;
98615454 KM	266	default:
	267	return -EINVAL;
	268	}
	269
40a49710	270	snd_soc_write(codec, DA7210_DAI_CFG1, dai_cfg1);
98615454	271
3a9d6202 KM	272	hpf_reg = (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) ?
	273	DA7210_DAC_HPF : DA7210_ADC_HPF;
	274
98615454	275	switch (params_rate(params)) {
3a9d6202 KM	276	case 8000:
	277	fs = DA7210_PLL_FS_8000;
	278	hpf_mask = DA7210_VOICE_F0_MASK \| DA7210_VOICE_EN;
	279	hpf_value = DA7210_VOICE_F0_25 \| DA7210_VOICE_EN;
960b3b4b KM	280	bypass = DA7210_PLL_BYP;
	281	break;
	282	case 11025:
	283	fs = DA7210_PLL_FS_11025;
	284	hpf_mask = DA7210_VOICE_F0_MASK \| DA7210_VOICE_EN;
	285	hpf_value = DA7210_VOICE_F0_25 \| DA7210_VOICE_EN;
	286	bypass = 0;
3a9d6202 KM	287	break;
	288	case 12000:
	289	fs = DA7210_PLL_FS_12000;
	290	hpf_mask = DA7210_VOICE_F0_MASK \| DA7210_VOICE_EN;
	291	hpf_value = DA7210_VOICE_F0_25 \| DA7210_VOICE_EN;
960b3b4b	292	bypass = DA7210_PLL_BYP;
3a9d6202 KM	293	break;
	294	case 16000:
	295	fs = DA7210_PLL_FS_16000;
	296	hpf_mask = DA7210_VOICE_F0_MASK \| DA7210_VOICE_EN;
	297	hpf_value = DA7210_VOICE_F0_25 \| DA7210_VOICE_EN;
960b3b4b KM	298	bypass = DA7210_PLL_BYP;
	299	break;
	300	case 22050:
	301	fs = DA7210_PLL_FS_22050;
	302	hpf_mask = DA7210_VOICE_EN;
	303	hpf_value = 0;
	304	bypass = 0;
3a9d6202 KM	305	break;
	306	case 32000:
	307	fs = DA7210_PLL_FS_32000;
	308	hpf_mask = DA7210_VOICE_EN;
	309	hpf_value = 0;
960b3b4b KM	310	bypass = DA7210_PLL_BYP;
	311	break;
	312	case 44100:
	313	fs = DA7210_PLL_FS_44100;
	314	hpf_mask = DA7210_VOICE_EN;
	315	hpf_value = 0;
	316	bypass = 0;
3a9d6202	317	break;
98615454	318	case 48000:
3a9d6202 KM	319	fs = DA7210_PLL_FS_48000;
	320	hpf_mask = DA7210_VOICE_EN;
	321	hpf_value = 0;
960b3b4b KM	322	bypass = DA7210_PLL_BYP;
	323	break;
	324	case 88200:
	325	fs = DA7210_PLL_FS_88200;
	326	hpf_mask = DA7210_VOICE_EN;
	327	hpf_value = 0;
	328	bypass = 0;
3a9d6202 KM	329	break;
	330	case 96000:
	331	fs = DA7210_PLL_FS_96000;
	332	hpf_mask = DA7210_VOICE_EN;
	333	hpf_value = 0;
960b3b4b	334	bypass = DA7210_PLL_BYP;
98615454 KM	335	break;
	336	default:
	337	return -EINVAL;
	338	}
	339
960b3b4b KM	340	/* Disable active mode */
	341	snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
	342
3a9d6202 KM	343	snd_soc_update_bits(codec, hpf_reg, hpf_mask, hpf_value);
3a9d6202 KM	344	snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_FS_MASK, fs);
960b3b4b KM	345	snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, bypass);
	346
	347	/* Enable active mode */
	348	snd_soc_update_bits(codec, DA7210_STARTUP1,
	349	DA7210_SC_MST_EN, DA7210_SC_MST_EN);
98615454 KM	350
	351	return 0;
	352	}
	353
	354	/*
	355	* Set DAI mode and Format
	356	*/
	357	static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
	358	{
	359	struct snd_soc_codec *codec = codec_dai->codec;
	360	u32 dai_cfg1;
	361	u32 dai_cfg3;
	362
40a49710 AL	363	dai_cfg1 = 0x7f & snd_soc_read(codec, DA7210_DAI_CFG1);
40a49710 AL	364	dai_cfg3 = 0xfc & snd_soc_read(codec, DA7210_DAI_CFG3);
98615454 KM	365
	366	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	367	case SND_SOC_DAIFMT_CBM_CFM:
	368	dai_cfg1 \|= DA7210_DAI_MODE_MASTER;
	369	break;
0f8ea586 AC	370	case SND_SOC_DAIFMT_CBS_CFS:
	371	dai_cfg1 \|= DA7210_DAI_MODE_SLAVE;
	372	break;
98615454 KM	373	default:
	374	return -EINVAL;
	375	}
	376
	377	/* FIXME
	378	*
	379	* It support I2S only now
	380	*/
	381	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	382	case SND_SOC_DAIFMT_I2S:
	383	dai_cfg3 \|= DA7210_DAI_FORMAT_I2SMODE;
	384	break;
0f8ea586 AC	385	case SND_SOC_DAIFMT_LEFT_J:
	386	dai_cfg3 \|= DA7210_DAI_FORMAT_LEFT_J;
	387	break;
	388	case SND_SOC_DAIFMT_RIGHT_J:
	389	dai_cfg3 \|= DA7210_DAI_FORMAT_RIGHT_J;
	390	break;
98615454 KM	391	default:
	392	return -EINVAL;
	393	}
	394
	395	/* FIXME
	396	*
	397	* It support 64bit data transmission only now
	398	*/
	399	dai_cfg1 \|= DA7210_DAI_FLEN_64BIT;
	400
40a49710 AL	401	snd_soc_write(codec, DA7210_DAI_CFG1, dai_cfg1);
40a49710 AL	402	snd_soc_write(codec, DA7210_DAI_CFG3, dai_cfg3);
98615454 KM	403
	404	return 0;
	405	}
	406
0f8ea586 AC	407	#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE \| SNDRV_PCM_FMTBIT_S20_3LE \|\
0f8ea586 AC	408	SNDRV_PCM_FMTBIT_S24_LE \| SNDRV_PCM_FMTBIT_S32_LE)
98615454 KM	409
	410	/* DAI operations */
	411	static struct snd_soc_dai_ops da7210_dai_ops = {
	412	.startup = da7210_startup,
	413	.hw_params = da7210_hw_params,
	414	.set_fmt = da7210_set_dai_fmt,
	415	};
	416
f0fba2ad LG	417	static struct snd_soc_dai_driver da7210_dai = {
f0fba2ad LG	418	.name = "da7210-hifi",
98615454 KM	419	/* playback capabilities */
	420	.playback = {
	421	.stream_name = "Playback",
	422	.channels_min = 1,
	423	.channels_max = 2,
	424	.rates = SNDRV_PCM_RATE_8000_96000,
	425	.formats = DA7210_FORMATS,
	426	},
	427	/* capture capabilities */
	428	.capture = {
	429	.stream_name = "Capture",
	430	.channels_min = 1,
	431	.channels_max = 2,
	432	.rates = SNDRV_PCM_RATE_8000_96000,
	433	.formats = DA7210_FORMATS,
	434	},
	435	.ops = &da7210_dai_ops,
960b3b4b	436	.symmetric_rates = 1,
98615454	437	};
98615454	438
f0fba2ad	439	static int da7210_probe(struct snd_soc_codec *codec)
98615454	440	{
f0fba2ad	441	struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
40a49710	442	int ret;
98615454	443
f0fba2ad	444	dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
98615454	445
40a49710 AL	446	ret = snd_soc_codec_set_cache_io(codec, 8, 8, da7210->control_type);
	447	if (ret < 0) {
	448	dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
	449	return ret;
	450	}
98615454 KM	451
	452	/* FIXME
	453	*
	454	* This driver use fixed value here
960b3b4b KM	455	* And below settings expects MCLK = 12.288MHz
	456	*
	457	* When you select different MCLK, please check...
	458	* DA7210_PLL_DIV1 val
	459	* DA7210_PLL_DIV2 val
	460	* DA7210_PLL_DIV3 val
	461	* DA7210_PLL_DIV3 :: DA7210_MCLK_RANGExxx
98615454 KM	462	*/
98615454 KM	463
960b3b4b KM	464	/*
960b3b4b KM	465	* make sure that DA7210 use bypass mode before start up
98615454	466	*/
40a49710 AL	467	snd_soc_write(codec, DA7210_STARTUP1, 0);
40a49710 AL	468	snd_soc_write(codec, DA7210_PLL_DIV3,
960b3b4b	469	DA7210_MCLK_RANGE_10_20_MHZ \| DA7210_PLL_BYP);
98615454 KM	470
	471	/*
	472	* ADC settings
	473	*/
	474
	475	/* Enable Left & Right MIC PGA and Mic Bias */
40a49710 AL	476	snd_soc_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN \| DA7210_MICBIAS_EN);
40a49710 AL	477	snd_soc_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
98615454 KM	478
98615454 KM	479	/* Enable Left and Right input PGA */
40a49710 AL	480	snd_soc_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
40a49710 AL	481	snd_soc_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);
98615454 KM	482
98615454 KM	483	/* Enable Left and Right ADC */
40a49710	484	snd_soc_write(codec, DA7210_ADC, DA7210_ADC_L_EN \| DA7210_ADC_R_EN);
98615454 KM	485
	486	/*
	487	* DAC settings
	488	*/
	489
	490	/* Enable Left and Right DAC */
40a49710	491	snd_soc_write(codec, DA7210_DAC_SEL,
98615454 KM	492	DA7210_DAC_L_SRC_DAI_L \| DA7210_DAC_L_EN \|
	493	DA7210_DAC_R_SRC_DAI_R \| DA7210_DAC_R_EN);
	494
	495	/* Enable Left and Right out PGA */
40a49710 AL	496	snd_soc_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
40a49710 AL	497	snd_soc_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);
98615454 KM	498
98615454 KM	499	/* Enable Left and Right HeadPhone PGA */
40a49710	500	snd_soc_write(codec, DA7210_HP_CFG,
98615454 KM	501	DA7210_HP_2CAP_MODE \| DA7210_HP_SENSE_EN \|
	502	DA7210_HP_L_EN \| DA7210_HP_MODE \| DA7210_HP_R_EN);
	503
	504	/* Diable PLL and bypass it */
40a49710	505	snd_soc_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
98615454	506
960b3b4b KM	507	/*
	508	* If 48kHz sound came, it use bypass mode,
	509	* and when it is 44.1kHz, it use PLL.
	510	*
	511	* This time, this driver sets PLL always ON
	512	* and controls bypass/PLL mode by switching
	513	* DA7210_PLL_DIV3 :: DA7210_PLL_BYP bit.
	514	* see da7210_hw_params
	515	*/
40a49710 AL	516	snd_soc_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
	517	snd_soc_write(codec, DA7210_PLL_DIV2, 0x99);
	518	snd_soc_write(codec, DA7210_PLL_DIV3, 0x0A \|
98615454	519	DA7210_MCLK_RANGE_10_20_MHZ \| DA7210_PLL_BYP);
960b3b4b KM	520	snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);
	521
	522	/* As suggested by Dialog */
40a49710 AL	523	snd_soc_write(codec, DA7210_A_HID_UNLOCK, 0x8B); /* unlock */
	524	snd_soc_write(codec, DA7210_A_TEST_UNLOCK, 0xB4);
	525	snd_soc_write(codec, DA7210_A_PLL1, 0x01);
	526	snd_soc_write(codec, DA7210_A_CP_MODE, 0x7C);
	527	snd_soc_write(codec, DA7210_A_HID_UNLOCK, 0x00); /* re-lock */
	528	snd_soc_write(codec, DA7210_A_TEST_UNLOCK, 0x00);
98615454 KM	529
98615454 KM	530	/* Activate all enabled subsystem */
40a49710	531	snd_soc_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
98615454	532
f0fba2ad	533	dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
98615454	534
f0fba2ad	535	return 0;
98615454 KM	536	}
98615454 KM	537
f0fba2ad	538	static struct snd_soc_codec_driver soc_codec_dev_da7210 = {
4c62ed9b	539	.probe = da7210_probe,
4c62ed9b KM	540	.reg_cache_size = ARRAY_SIZE(da7210_reg),
4c62ed9b KM	541	.reg_word_size = sizeof(u8),
f0fba2ad	542	.reg_cache_default = da7210_reg,
40a49710	543	.volatile_register = da7210_volatile_register,
a6f096f3 MB	544
	545	.controls = da7210_snd_controls,
	546	.num_controls = ARRAY_SIZE(da7210_snd_controls),
f0fba2ad LG	547	};
f0fba2ad LG	548
98615454	549	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
735fe4cf MB	550	static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
735fe4cf MB	551	const struct i2c_device_id *id)
98615454 KM	552	{
98615454 KM	553	struct da7210_priv *da7210;
98615454 KM	554	int ret;
	555
	556	da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL);
	557	if (!da7210)
	558	return -ENOMEM;
	559
98615454	560	i2c_set_clientdata(i2c, da7210);
f0fba2ad	561	da7210->control_type = SND_SOC_I2C;
98615454	562
f0fba2ad LG	563	ret = snd_soc_register_codec(&i2c->dev,
	564	&soc_codec_dev_da7210, &da7210_dai, 1);
	565	if (ret < 0)
085efd28	566	kfree(da7210);
98615454 KM	567
	568	return ret;
	569	}
	570
735fe4cf	571	static int __devexit da7210_i2c_remove(struct i2c_client *client)
98615454	572	{
f0fba2ad LG	573	snd_soc_unregister_codec(&client->dev);
f0fba2ad LG	574	kfree(i2c_get_clientdata(client));
98615454 KM	575	return 0;
	576	}
	577
	578	static const struct i2c_device_id da7210_i2c_id[] = {
	579	{ "da7210", 0 },
	580	{ }
	581	};
	582	MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);
	583
	584	/* I2C codec control layer */
	585	static struct i2c_driver da7210_i2c_driver = {
	586	.driver = {
f0fba2ad	587	.name = "da7210-codec",
98615454 KM	588	.owner = THIS_MODULE,
98615454 KM	589	},
4c62ed9b KM	590	.probe = da7210_i2c_probe,
	591	.remove = __devexit_p(da7210_i2c_remove),
	592	.id_table = da7210_i2c_id,
98615454 KM	593	};
	594	#endif
	595
98615454 KM	596	static int __init da7210_modinit(void)
	597	{
	598	int ret = 0;
	599	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	600	ret = i2c_add_driver(&da7210_i2c_driver);
	601	#endif
	602	return ret;
	603	}
	604	module_init(da7210_modinit);
	605
	606	static void __exit da7210_exit(void)
	607	{
	608	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	609	i2c_del_driver(&da7210_i2c_driver);
	610	#endif
	611	}
	612	module_exit(da7210_exit);
	613
	614	MODULE_DESCRIPTION("ASoC DA7210 driver");
	615	MODULE_AUTHOR("David Chen, Kuninori Morimoto");
	616	MODULE_LICENSE("GPL");