[deliverable/linux.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/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include <sound/initval.h>
#include <asm/div64.h>

#include "da7210.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_S24_LE		(2 << 0)
#define DA7210_DAI_FLEN_64BIT		(1 << 2)
#define DA7210_DAI_MODE_MASTER		(1 << 7)

/* DAI_CFG3 bit fields */
#define DA7210_DAI_FORMAT_I2SMODE	(0 << 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"

/* Codec private data */
struct da7210_priv {
	struct snd_soc_codec codec;
};

static struct snd_soc_codec *da7210_codec;

/*
 * 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       */
};

/*
 * Read da7210 register cache
 */
static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg)
{
	u8 *cache = codec->reg_cache;
	BUG_ON(reg > ARRAY_SIZE(da7210_reg));
	return cache[reg];
}

/*
 * Write to the da7210 register space
 */
static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value)
{
	u8 *cache = codec->reg_cache;
	u8 data[2];

	BUG_ON(codec->volatile_register);

	data[0] = reg & 0xff;
	data[1] = value & 0xff;

	if (reg >= codec->reg_cache_size)
		return -EIO;

	if (2 != codec->hw_write(codec->control_data, data, 2))
		return -EIO;

	cache[reg] = value;
	return 0;
}

/*
 * Read from the da7210 register space.
 */
static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg)
{
	if (DA7210_STATUS == reg)
		return i2c_smbus_read_byte_data(codec->control_data, reg);

	return da7210_read_reg_cache(codec, reg);
}

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) {
		/* PlayBack Volume 40 */
		snd_soc_update_bits(codec, DA7210_HP_L_VOL, 0x3F, 40);
		snd_soc_update_bits(codec, DA7210_HP_R_VOL, 0x3F, 40);

		/* 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_device *socdev = rtd->socdev;
	struct snd_soc_codec *codec = socdev->card->codec;
	u32 dai_cfg1;
	u32 hpf_reg, hpf_mask, hpf_value;
	u32 fs, bypass;

	/* set DAI source to Left and Right ADC */
	da7210_write(codec, DA7210_DAI_SRC_SEL,
		     DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);

	/* Enable DAI */
	da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);

	dai_cfg1 = 0xFC & da7210_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_S24_LE:
		dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
		break;
	default:
		return -EINVAL;
	}

	da7210_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 & da7210_read(codec, DA7210_DAI_CFG1);
	dai_cfg3 = 0xfc & da7210_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;
	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;
	default:
		return -EINVAL;
	}

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

	da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
	da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3);

	return 0;
}

#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_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,
};

struct snd_soc_dai da7210_dai = {
	.name = "DA7210 IIS",
	.id = 0,
	/* 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,
};
EXPORT_SYMBOL_GPL(da7210_dai);

/*
 * Initialize the DA7210 driver
 * register the mixer and dsp interfaces with the kernel
 */
static int da7210_init(struct da7210_priv *da7210)
{
	struct snd_soc_codec *codec = &da7210->codec;
	int ret = 0;

	if (da7210_codec) {
		dev_err(codec->dev, "Another da7210 is registered\n");
		return -EINVAL;
	}

	mutex_init(&codec->mutex);
	INIT_LIST_HEAD(&codec->dapm_widgets);
	INIT_LIST_HEAD(&codec->dapm_paths);

	snd_soc_codec_set_drvdata(codec, da7210);
	codec->name		= "DA7210";
	codec->owner		= THIS_MODULE;
	codec->read		= da7210_read;
	codec->write		= da7210_write;
	codec->dai		= &da7210_dai;
	codec->num_dai		= 1;
	codec->hw_write		= (hw_write_t)i2c_master_send;
	codec->reg_cache_size	= ARRAY_SIZE(da7210_reg);
	codec->reg_cache	= kmemdup(da7210_reg,
					  sizeof(da7210_reg), GFP_KERNEL);

	if (!codec->reg_cache)
		return -ENOMEM;

	da7210_dai.dev = codec->dev;
	da7210_codec = codec;

	ret = snd_soc_register_codec(codec);
	if (ret) {
		dev_err(codec->dev, "Failed to register CODEC: %d\n", ret);
		goto init_err;
	}

	ret = snd_soc_register_dai(&da7210_dai);
	if (ret) {
		dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
		goto init_err;
	}

	/* 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
	 */
	da7210_write(codec, DA7210_STARTUP1, 0);
	da7210_write(codec, DA7210_PLL_DIV3,
		     DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);

	/*
	 * ADC settings
	 */

	/* Enable Left & Right MIC PGA and Mic Bias */
	da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
	da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);

	/* Enable Left and Right input PGA */
	da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
	da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);

	/* Enable Left and Right ADC */
	da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);

	/*
	 * DAC settings
	 */

	/* Enable Left and Right DAC */
	da7210_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 */
	da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
	da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);

	/* Enable Left and Right HeadPhone PGA */
	da7210_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 */
	da7210_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
	 */
	da7210_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
	da7210_write(codec, DA7210_PLL_DIV2, 0x99);
	da7210_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 */
	da7210_write(codec, DA7210_A_HID_UNLOCK,	0x8B); /* unlock */
	da7210_write(codec, DA7210_A_TEST_UNLOCK,	0xB4);
	da7210_write(codec, DA7210_A_PLL1,		0x01);
	da7210_write(codec, DA7210_A_CP_MODE,		0x7C);
	da7210_write(codec, DA7210_A_HID_UNLOCK,	0x00); /* re-lock */
	da7210_write(codec, DA7210_A_TEST_UNLOCK,	0x00);

	/* Activate all enabled subsystem */
	da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);

	return ret;

init_err:
	kfree(codec->reg_cache);
	codec->reg_cache = NULL;

	return ret;

}

#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;
	struct snd_soc_codec *codec;
	int ret;

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

	codec = &da7210->codec;
	codec->dev = &i2c->dev;

	i2c_set_clientdata(i2c, da7210);
	codec->control_data = i2c;

	ret = da7210_init(da7210);
	if (ret < 0)
		pr_err("Failed to initialise da7210 audio codec\n");

	return ret;
}

static int __devexit da7210_i2c_remove(struct i2c_client *client)
{
	struct da7210_priv *da7210 = i2c_get_clientdata(client);

	snd_soc_unregister_dai(&da7210_dai);
	kfree(da7210->codec.reg_cache);
	kfree(da7210);
	da7210_codec = NULL;

	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 I2C Codec",
		.owner = THIS_MODULE,
	},
	.probe = da7210_i2c_probe,
	.remove =  __devexit_p(da7210_i2c_remove),
	.id_table = da7210_i2c_id,
};
#endif

static int da7210_probe(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec;
	int ret;

	if (!da7210_codec) {
		dev_err(&pdev->dev, "Codec device not registered\n");
		return -ENODEV;
	}

	socdev->card->codec = da7210_codec;
	codec = da7210_codec;

	/* Register pcms */
	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
	if (ret < 0)
		goto pcm_err;

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

pcm_err:
	return ret;
}

static int da7210_remove(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);

	snd_soc_free_pcms(socdev);
	snd_soc_dapm_free(socdev);

	return 0;
}

struct snd_soc_codec_device soc_codec_dev_da7210 = {
	.probe =	da7210_probe,
	.remove =	da7210_remove,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_da7210);

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
	18	#include <linux/module.h>
	19	#include <linux/moduleparam.h>
	20	#include <linux/kernel.h>
	21	#include <linux/init.h>
	22	#include <linux/delay.h>
	23	#include <linux/pm.h>
	24	#include <linux/i2c.h>
	25	#include <linux/platform_device.h>
	26	#include <sound/core.h>
	27	#include <sound/pcm.h>
	28	#include <sound/pcm_params.h>
	29	#include <sound/soc.h>
	30	#include <sound/soc-dapm.h>
	31	#include <sound/tlv.h>
	32	#include <sound/initval.h>
	33	#include <asm/div64.h>
	34
	35	#include "da7210.h"
	36
	37	/* DA7210 register space */
	38	#define DA7210_STATUS 0x02
	39	#define DA7210_STARTUP1 0x03
	40	#define DA7210_MIC_L 0x07
	41	#define DA7210_MIC_R 0x08
	42	#define DA7210_INMIX_L 0x0D
	43	#define DA7210_INMIX_R 0x0E
	44	#define DA7210_ADC_HPF 0x0F
	45	#define DA7210_ADC 0x10
	46	#define DA7210_DAC_HPF 0x14
	47	#define DA7210_DAC_L 0x15
	48	#define DA7210_DAC_R 0x16
	49	#define DA7210_DAC_SEL 0x17
	50	#define DA7210_OUTMIX_L 0x1C
	51	#define DA7210_OUTMIX_R 0x1D
	52	#define DA7210_HP_L_VOL 0x21
	53	#define DA7210_HP_R_VOL 0x22
	54	#define DA7210_HP_CFG 0x23
	55	#define DA7210_DAI_SRC_SEL 0x25
	56	#define DA7210_DAI_CFG1 0x26
	57	#define DA7210_DAI_CFG3 0x28
960b3b4b KM	58	#define DA7210_PLL_DIV1 0x29
960b3b4b KM	59	#define DA7210_PLL_DIV2 0x2A
98615454 KM	60	#define DA7210_PLL_DIV3 0x2B
98615454 KM	61	#define DA7210_PLL 0x2C
960b3b4b KM	62	#define DA7210_A_HID_UNLOCK 0x8A
	63	#define DA7210_A_TEST_UNLOCK 0x8B
	64	#define DA7210_A_PLL1 0x90
	65	#define DA7210_A_CP_MODE 0xA7
98615454 KM	66
	67	/* STARTUP1 bit fields */
	68	#define DA7210_SC_MST_EN (1 << 0)
	69
	70	/* MIC_L bit fields */
	71	#define DA7210_MICBIAS_EN (1 << 6)
	72	#define DA7210_MIC_L_EN (1 << 7)
	73
	74	/* MIC_R bit fields */
	75	#define DA7210_MIC_R_EN (1 << 7)
	76
	77	/* INMIX_L bit fields */
	78	#define DA7210_IN_L_EN (1 << 7)
	79
	80	/* INMIX_R bit fields */
	81	#define DA7210_IN_R_EN (1 << 7)
	82
98615454 KM	83	/* ADC bit fields */
	84	#define DA7210_ADC_L_EN (1 << 3)
	85	#define DA7210_ADC_R_EN (1 << 7)
	86
3a9d6202 KM	87	/* DAC/ADC HPF fields */
	88	#define DA7210_VOICE_F0_MASK (0x7 << 4)
	89	#define DA7210_VOICE_F0_25 (1 << 4)
	90	#define DA7210_VOICE_EN (1 << 7)
c2151433	91
98615454 KM	92	/* DAC_SEL bit fields */
	93	#define DA7210_DAC_L_SRC_DAI_L (4 << 0)
	94	#define DA7210_DAC_L_EN (1 << 3)
	95	#define DA7210_DAC_R_SRC_DAI_R (5 << 4)
	96	#define DA7210_DAC_R_EN (1 << 7)
	97
	98	/* OUTMIX_L bit fields */
	99	#define DA7210_OUT_L_EN (1 << 7)
	100
	101	/* OUTMIX_R bit fields */
	102	#define DA7210_OUT_R_EN (1 << 7)
	103
	104	/* HP_CFG bit fields */
	105	#define DA7210_HP_2CAP_MODE (1 << 1)
	106	#define DA7210_HP_SENSE_EN (1 << 2)
	107	#define DA7210_HP_L_EN (1 << 3)
	108	#define DA7210_HP_MODE (1 << 6)
	109	#define DA7210_HP_R_EN (1 << 7)
	110
	111	/* DAI_SRC_SEL bit fields */
	112	#define DA7210_DAI_OUT_L_SRC (6 << 0)
	113	#define DA7210_DAI_OUT_R_SRC (7 << 4)
	114
	115	/* DAI_CFG1 bit fields */
	116	#define DA7210_DAI_WORD_S16_LE (0 << 0)
	117	#define DA7210_DAI_WORD_S24_LE (2 << 0)
	118	#define DA7210_DAI_FLEN_64BIT (1 << 2)
	119	#define DA7210_DAI_MODE_MASTER (1 << 7)
	120
	121	/* DAI_CFG3 bit fields */
	122	#define DA7210_DAI_FORMAT_I2SMODE (0 << 0)
	123	#define DA7210_DAI_OE (1 << 3)
	124	#define DA7210_DAI_EN (1 << 7)
	125
	126	/PLL_DIV3 bit fields /
	127	#define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4)
	128	#define DA7210_PLL_BYP (1 << 6)
	129
	130	/* PLL bit fields */
3a9d6202 KM	131	#define DA7210_PLL_FS_MASK (0xF << 0)
3a9d6202 KM	132	#define DA7210_PLL_FS_8000 (0x1 << 0)
960b3b4b	133	#define DA7210_PLL_FS_11025 (0x2 << 0)
3a9d6202 KM	134	#define DA7210_PLL_FS_12000 (0x3 << 0)
3a9d6202 KM	135	#define DA7210_PLL_FS_16000 (0x5 << 0)
960b3b4b	136	#define DA7210_PLL_FS_22050 (0x6 << 0)
3a9d6202 KM	137	#define DA7210_PLL_FS_24000 (0x7 << 0)
3a9d6202 KM	138	#define DA7210_PLL_FS_32000 (0x9 << 0)
960b3b4b	139	#define DA7210_PLL_FS_44100 (0xA << 0)
3a9d6202	140	#define DA7210_PLL_FS_48000 (0xB << 0)
960b3b4b	141	#define DA7210_PLL_FS_88200 (0xE << 0)
3a9d6202	142	#define DA7210_PLL_FS_96000 (0xF << 0)
960b3b4b	143	#define DA7210_PLL_EN (0x1 << 7)
98615454 KM	144
	145	#define DA7210_VERSION "0.0.1"
	146
	147	/* Codec private data */
	148	struct da7210_priv {
	149	struct snd_soc_codec codec;
	150	};
	151
	152	static struct snd_soc_codec *da7210_codec;
	153
	154	/*
	155	* Register cache
	156	*/
	157	static const u8 da7210_reg[] = {
	158	0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0 - R7 */
	159	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8 - RF */
	160	0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */
	161	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */
	162	0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */
	163	0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */
	164	0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */
	165	0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */
	166	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */
	167	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */
	168	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */
	169	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */
	170	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */
	171	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */
	172	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */
	173	0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */
	174	0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */
	175	0x00, /* R88 */
	176	};
	177
	178	/*
	179	* Read da7210 register cache
	180	*/
	181	static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg)
	182	{
	183	u8 *cache = codec->reg_cache;
	184	BUG_ON(reg > ARRAY_SIZE(da7210_reg));
	185	return cache[reg];
	186	}
	187
	188	/*
	189	* Write to the da7210 register space
	190	*/
	191	static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value)
	192	{
	193	u8 *cache = codec->reg_cache;
	194	u8 data[2];
	195
	196	BUG_ON(codec->volatile_register);
	197
	198	data[0] = reg & 0xff;
	199	data[1] = value & 0xff;
	200
	201	if (reg >= codec->reg_cache_size)
	202	return -EIO;
	203
	204	if (2 != codec->hw_write(codec->control_data, data, 2))
	205	return -EIO;
	206
	207	cache[reg] = value;
208	return 0;
209	}
210
211	/*
212	* Read from the da7210 register space.
213	*/
214	static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg)
215	{
216	if (DA7210_STATUS == reg)
217	return i2c_smbus_read_byte_data(codec->control_data, reg);
218
219	return da7210_read_reg_cache(codec, reg);
220	}
221
222	static int da7210_startup(struct snd_pcm_substream *substream,
223	struct snd_soc_dai *dai)
224	{
225	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
226	struct snd_soc_codec *codec = dai->codec;
227
228	if (is_play) {
229	/* PlayBack Volume 40 */
230	snd_soc_update_bits(codec, DA7210_HP_L_VOL, 0x3F, 40);
231	snd_soc_update_bits(codec, DA7210_HP_R_VOL, 0x3F, 40);
232
233	/* Enable Out */
234	snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10);
235	snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10);
236
237	} else {
238	/* Volume 7 */
239	snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7);
240	snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7);
241
242	/* Enable Mic */
243	snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1);
244	snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1);
245	}
246
247	return 0;
248	}
249
250	/*
251	* Set PCM DAI word length.
252	*/
253	static int da7210_hw_params(struct snd_pcm_substream *substream,
254	struct snd_pcm_hw_params *params,
255	struct snd_soc_dai *dai)
256	{
257	struct snd_soc_pcm_runtime *rtd = substream->private_data;
258	struct snd_soc_device *socdev = rtd->socdev;
259	struct snd_soc_codec *codec = socdev->card->codec;
260	u32 dai_cfg1;
3a9d6202	261	u32 hpf_reg, hpf_mask, hpf_value;
960b3b4b	262	u32 fs, bypass;
98615454 KM	263
	264	/* set DAI source to Left and Right ADC */
	265	da7210_write(codec, DA7210_DAI_SRC_SEL,
	266	DA7210_DAI_OUT_R_SRC \| DA7210_DAI_OUT_L_SRC);
	267
	268	/* Enable DAI */
	269	da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE \| DA7210_DAI_EN);
	270
	271	dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1);
	272
	273	switch (params_format(params)) {
	274	case SNDRV_PCM_FORMAT_S16_LE:
	275	dai_cfg1 \|= DA7210_DAI_WORD_S16_LE;
	276	break;
	277	case SNDRV_PCM_FORMAT_S24_LE:
	278	dai_cfg1 \|= DA7210_DAI_WORD_S24_LE;
	279	break;
	280	default:
	281	return -EINVAL;
	282	}
	283
	284	da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
	285
3a9d6202 KM	286	hpf_reg = (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) ?
	287	DA7210_DAC_HPF : DA7210_ADC_HPF;
	288
98615454	289	switch (params_rate(params)) {
3a9d6202 KM	290	case 8000:
	291	fs = DA7210_PLL_FS_8000;
	292	hpf_mask = DA7210_VOICE_F0_MASK \| DA7210_VOICE_EN;
	293	hpf_value = DA7210_VOICE_F0_25 \| DA7210_VOICE_EN;
960b3b4b KM	294	bypass = DA7210_PLL_BYP;
	295	break;
	296	case 11025:
	297	fs = DA7210_PLL_FS_11025;
	298	hpf_mask = DA7210_VOICE_F0_MASK \| DA7210_VOICE_EN;
	299	hpf_value = DA7210_VOICE_F0_25 \| DA7210_VOICE_EN;
	300	bypass = 0;
3a9d6202 KM	301	break;
	302	case 12000:
	303	fs = DA7210_PLL_FS_12000;
	304	hpf_mask = DA7210_VOICE_F0_MASK \| DA7210_VOICE_EN;
	305	hpf_value = DA7210_VOICE_F0_25 \| DA7210_VOICE_EN;
960b3b4b	306	bypass = DA7210_PLL_BYP;
3a9d6202 KM	307	break;
	308	case 16000:
	309	fs = DA7210_PLL_FS_16000;
	310	hpf_mask = DA7210_VOICE_F0_MASK \| DA7210_VOICE_EN;
	311	hpf_value = DA7210_VOICE_F0_25 \| DA7210_VOICE_EN;
960b3b4b KM	312	bypass = DA7210_PLL_BYP;
	313	break;
	314	case 22050:
	315	fs = DA7210_PLL_FS_22050;
	316	hpf_mask = DA7210_VOICE_EN;
	317	hpf_value = 0;
	318	bypass = 0;
3a9d6202 KM	319	break;
	320	case 32000:
	321	fs = DA7210_PLL_FS_32000;
	322	hpf_mask = DA7210_VOICE_EN;
	323	hpf_value = 0;
960b3b4b KM	324	bypass = DA7210_PLL_BYP;
	325	break;
	326	case 44100:
	327	fs = DA7210_PLL_FS_44100;
	328	hpf_mask = DA7210_VOICE_EN;
	329	hpf_value = 0;
	330	bypass = 0;
3a9d6202	331	break;
98615454	332	case 48000:
3a9d6202 KM	333	fs = DA7210_PLL_FS_48000;
	334	hpf_mask = DA7210_VOICE_EN;
	335	hpf_value = 0;
960b3b4b KM	336	bypass = DA7210_PLL_BYP;
	337	break;
	338	case 88200:
	339	fs = DA7210_PLL_FS_88200;
	340	hpf_mask = DA7210_VOICE_EN;
	341	hpf_value = 0;
	342	bypass = 0;
3a9d6202 KM	343	break;
	344	case 96000:
	345	fs = DA7210_PLL_FS_96000;
	346	hpf_mask = DA7210_VOICE_EN;
	347	hpf_value = 0;
960b3b4b	348	bypass = DA7210_PLL_BYP;
98615454 KM	349	break;
	350	default:
	351	return -EINVAL;
	352	}
	353
960b3b4b KM	354	/* Disable active mode */
	355	snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
	356
3a9d6202 KM	357	snd_soc_update_bits(codec, hpf_reg, hpf_mask, hpf_value);
3a9d6202 KM	358	snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_FS_MASK, fs);
960b3b4b KM	359	snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, bypass);
	360
	361	/* Enable active mode */
	362	snd_soc_update_bits(codec, DA7210_STARTUP1,
	363	DA7210_SC_MST_EN, DA7210_SC_MST_EN);
98615454 KM	364
	365	return 0;
	366	}
	367
	368	/*
	369	* Set DAI mode and Format
	370	*/
	371	static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
	372	{
	373	struct snd_soc_codec *codec = codec_dai->codec;
	374	u32 dai_cfg1;
	375	u32 dai_cfg3;
	376
	377	dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1);
	378	dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3);
	379
	380	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	381	case SND_SOC_DAIFMT_CBM_CFM:
	382	dai_cfg1 \|= DA7210_DAI_MODE_MASTER;
	383	break;
	384	default:
	385	return -EINVAL;
	386	}
	387
	388	/* FIXME
	389	*
	390	* It support I2S only now
	391	*/
	392	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	393	case SND_SOC_DAIFMT_I2S:
	394	dai_cfg3 \|= DA7210_DAI_FORMAT_I2SMODE;
	395	break;
	396	default:
	397	return -EINVAL;
	398	}
	399
	400	/* FIXME
	401	*
	402	* It support 64bit data transmission only now
	403	*/
	404	dai_cfg1 \|= DA7210_DAI_FLEN_64BIT;
	405
	406	da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
	407	da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3);
	408
	409	return 0;
	410	}
	411
	412	#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE \| SNDRV_PCM_FMTBIT_S24_LE)
	413
	414	/* DAI operations */
	415	static struct snd_soc_dai_ops da7210_dai_ops = {
	416	.startup = da7210_startup,
	417	.hw_params = da7210_hw_params,
	418	.set_fmt = da7210_set_dai_fmt,
	419	};
	420
	421	struct snd_soc_dai da7210_dai = {
	422	.name = "DA7210 IIS",
	423	.id = 0,
	424	/* playback capabilities */
	425	.playback = {
	426	.stream_name = "Playback",
	427	.channels_min = 1,
428	.channels_max = 2,
429	.rates = SNDRV_PCM_RATE_8000_96000,
430	.formats = DA7210_FORMATS,
431	},
432	/* capture capabilities */
433	.capture = {
434	.stream_name = "Capture",
435	.channels_min = 1,
436	.channels_max = 2,
437	.rates = SNDRV_PCM_RATE_8000_96000,
438	.formats = DA7210_FORMATS,
439	},
440	.ops = &da7210_dai_ops,
960b3b4b	441	.symmetric_rates = 1,
98615454 KM	442	};
	443	EXPORT_SYMBOL_GPL(da7210_dai);
	444
	445	/*
	446	* Initialize the DA7210 driver
	447	* register the mixer and dsp interfaces with the kernel
	448	*/
	449	static int da7210_init(struct da7210_priv *da7210)
	450	{
	451	struct snd_soc_codec *codec = &da7210->codec;
	452	int ret = 0;
	453
	454	if (da7210_codec) {
	455	dev_err(codec->dev, "Another da7210 is registered\n");
	456	return -EINVAL;
	457	}
	458
	459	mutex_init(&codec->mutex);
	460	INIT_LIST_HEAD(&codec->dapm_widgets);
	461	INIT_LIST_HEAD(&codec->dapm_paths);
	462
b2c812e2	463	snd_soc_codec_set_drvdata(codec, da7210);
98615454 KM	464	codec->name = "DA7210";
	465	codec->owner = THIS_MODULE;
	466	codec->read = da7210_read;
	467	codec->write = da7210_write;
	468	codec->dai = &da7210_dai;
	469	codec->num_dai = 1;
	470	codec->hw_write = (hw_write_t)i2c_master_send;
	471	codec->reg_cache_size = ARRAY_SIZE(da7210_reg);
	472	codec->reg_cache = kmemdup(da7210_reg,
	473	sizeof(da7210_reg), GFP_KERNEL);
	474
	475	if (!codec->reg_cache)
	476	return -ENOMEM;
	477
	478	da7210_dai.dev = codec->dev;
	479	da7210_codec = codec;
	480
	481	ret = snd_soc_register_codec(codec);
	482	if (ret) {
	483	dev_err(codec->dev, "Failed to register CODEC: %d\n", ret);
	484	goto init_err;
	485	}
	486
	487	ret = snd_soc_register_dai(&da7210_dai);
	488	if (ret) {
	489	dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
	490	goto init_err;
	491	}
	492
	493	/* FIXME
	494	*
	495	* This driver use fixed value here
960b3b4b KM	496	* And below settings expects MCLK = 12.288MHz
	497	*
	498	* When you select different MCLK, please check...
	499	* DA7210_PLL_DIV1 val
	500	* DA7210_PLL_DIV2 val
	501	* DA7210_PLL_DIV3 val
	502	* DA7210_PLL_DIV3 :: DA7210_MCLK_RANGExxx
	503	*/
	504
	505	/*
	506	* make sure that DA7210 use bypass mode before start up
98615454	507	*/
960b3b4b KM	508	da7210_write(codec, DA7210_STARTUP1, 0);
	509	da7210_write(codec, DA7210_PLL_DIV3,
	510	DA7210_MCLK_RANGE_10_20_MHZ \| DA7210_PLL_BYP);
98615454 KM	511
	512	/*
	513	* ADC settings
	514	*/
	515
	516	/* Enable Left & Right MIC PGA and Mic Bias */
	517	da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN \| DA7210_MICBIAS_EN);
	518	da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
	519
	520	/* Enable Left and Right input PGA */
	521	da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
	522	da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);
	523
	524	/* Enable Left and Right ADC */
	525	da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN \| DA7210_ADC_R_EN);
	526
	527	/*
	528	* DAC settings
	529	*/
	530
	531	/* Enable Left and Right DAC */
	532	da7210_write(codec, DA7210_DAC_SEL,
	533	DA7210_DAC_L_SRC_DAI_L \| DA7210_DAC_L_EN \|
	534	DA7210_DAC_R_SRC_DAI_R \| DA7210_DAC_R_EN);
	535
	536	/* Enable Left and Right out PGA */
	537	da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
	538	da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);
	539
	540	/* Enable Left and Right HeadPhone PGA */
	541	da7210_write(codec, DA7210_HP_CFG,
	542	DA7210_HP_2CAP_MODE \| DA7210_HP_SENSE_EN \|
	543	DA7210_HP_L_EN \| DA7210_HP_MODE \| DA7210_HP_R_EN);
	544
	545	/* Diable PLL and bypass it */
	546	da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
	547
960b3b4b KM	548	/*
	549	* If 48kHz sound came, it use bypass mode,
	550	* and when it is 44.1kHz, it use PLL.
	551	*
	552	* This time, this driver sets PLL always ON
	553	* and controls bypass/PLL mode by switching
	554	* DA7210_PLL_DIV3 :: DA7210_PLL_BYP bit.
	555	* see da7210_hw_params
	556	*/
	557	da7210_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
	558	da7210_write(codec, DA7210_PLL_DIV2, 0x99);
	559	da7210_write(codec, DA7210_PLL_DIV3, 0x0A \|
98615454	560	DA7210_MCLK_RANGE_10_20_MHZ \| DA7210_PLL_BYP);
960b3b4b KM	561	snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);
	562
	563	/* As suggested by Dialog */
	564	da7210_write(codec, DA7210_A_HID_UNLOCK, 0x8B); /* unlock */
	565	da7210_write(codec, DA7210_A_TEST_UNLOCK, 0xB4);
	566	da7210_write(codec, DA7210_A_PLL1, 0x01);
	567	da7210_write(codec, DA7210_A_CP_MODE, 0x7C);
	568	da7210_write(codec, DA7210_A_HID_UNLOCK, 0x00); /* re-lock */
	569	da7210_write(codec, DA7210_A_TEST_UNLOCK, 0x00);
98615454 KM	570
	571	/* Activate all enabled subsystem */
	572	da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
	573
	574	return ret;
	575
	576	init_err:
	577	kfree(codec->reg_cache);
	578	codec->reg_cache = NULL;
	579
	580	return ret;
	581
	582	}
	583
	584	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
735fe4cf MB	585	static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
735fe4cf MB	586	const struct i2c_device_id *id)
98615454 KM	587	{
	588	struct da7210_priv *da7210;
	589	struct snd_soc_codec *codec;
	590	int ret;
	591
	592	da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL);
	593	if (!da7210)
	594	return -ENOMEM;
	595
	596	codec = &da7210->codec;
	597	codec->dev = &i2c->dev;
	598
	599	i2c_set_clientdata(i2c, da7210);
	600	codec->control_data = i2c;
	601
	602	ret = da7210_init(da7210);
	603	if (ret < 0)
	604	pr_err("Failed to initialise da7210 audio codec\n");
	605
	606	return ret;
	607	}
	608
735fe4cf	609	static int __devexit da7210_i2c_remove(struct i2c_client *client)
98615454 KM	610	{
	611	struct da7210_priv *da7210 = i2c_get_clientdata(client);
	612
	613	snd_soc_unregister_dai(&da7210_dai);
	614	kfree(da7210->codec.reg_cache);
	615	kfree(da7210);
	616	da7210_codec = NULL;
	617
	618	return 0;
	619	}
	620
	621	static const struct i2c_device_id da7210_i2c_id[] = {
	622	{ "da7210", 0 },
	623	{ }
	624	};
	625	MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);
	626
	627	/* I2C codec control layer */
	628	static struct i2c_driver da7210_i2c_driver = {
	629	.driver = {
	630	.name = "DA7210 I2C Codec",
	631	.owner = THIS_MODULE,
	632	},
	633	.probe = da7210_i2c_probe,
	634	.remove = __devexit_p(da7210_i2c_remove),
	635	.id_table = da7210_i2c_id,
	636	};
	637	#endif
	638
	639	static int da7210_probe(struct platform_device *pdev)
	640	{
	641	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	642	struct snd_soc_codec *codec;
	643	int ret;
	644
	645	if (!da7210_codec) {
	646	dev_err(&pdev->dev, "Codec device not registered\n");
	647	return -ENODEV;
	648	}
	649
	650	socdev->card->codec = da7210_codec;
	651	codec = da7210_codec;
	652
	653	/* Register pcms */
	654	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
	655	if (ret < 0)
	656	goto pcm_err;
	657
	658	dev_info(&pdev->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
	659
	660	pcm_err:
	661	return ret;
	662	}
	663
	664	static int da7210_remove(struct platform_device *pdev)
	665	{
	666	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	667
	668	snd_soc_free_pcms(socdev);
	669	snd_soc_dapm_free(socdev);
	670
	671	return 0;
	672	}
	673
674	struct snd_soc_codec_device soc_codec_dev_da7210 = {
675	.probe = da7210_probe,
676	.remove = da7210_remove,
677	};
678	EXPORT_SYMBOL_GPL(soc_codec_dev_da7210);
679
680	static int __init da7210_modinit(void)
681	{
682	int ret = 0;
683	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
684	ret = i2c_add_driver(&da7210_i2c_driver);
685	#endif
686	return ret;
687	}
688	module_init(da7210_modinit);
689
690	static void __exit da7210_exit(void)
691	{
692	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
693	i2c_del_driver(&da7210_i2c_driver);
694	#endif
695	}
696	module_exit(da7210_exit);
697
698	MODULE_DESCRIPTION("ASoC DA7210 driver");
699	MODULE_AUTHOR("David Chen, Kuninori Morimoto");
700	MODULE_LICENSE("GPL");