[deliverable/linux.git] / sound / soc / codecs / ad193x.c

/*
 * AD193X Audio Codec driver supporting AD1936/7/8/9
 *
 * Copyright 2010 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "ad193x.h"

/* codec private data */
struct ad193x_priv {
	enum snd_soc_control_type control_type;
	int sysclk;
};

/* ad193x register cache & default register settings */
static const u8 ad193x_reg[AD193X_NUM_REGS] = {
	0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0,
};

/*
 * AD193X volume/mute/de-emphasis etc. controls
 */
static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};

static const struct soc_enum ad193x_deemp_enum =
	SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);

static const struct snd_kcontrol_new ad193x_snd_controls[] = {
	/* DAC volume control */
	SOC_DOUBLE_R("DAC1 Volume", AD193X_DAC_L1_VOL,
			AD193X_DAC_R1_VOL, 0, 0xFF, 1),
	SOC_DOUBLE_R("DAC2 Volume", AD193X_DAC_L2_VOL,
			AD193X_DAC_R2_VOL, 0, 0xFF, 1),
	SOC_DOUBLE_R("DAC3 Volume", AD193X_DAC_L3_VOL,
			AD193X_DAC_R3_VOL, 0, 0xFF, 1),
	SOC_DOUBLE_R("DAC4 Volume", AD193X_DAC_L4_VOL,
			AD193X_DAC_R4_VOL, 0, 0xFF, 1),

	/* ADC switch control */
	SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
		AD193X_ADCR1_MUTE, 1, 1),
	SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
		AD193X_ADCR2_MUTE, 1, 1),

	/* DAC switch control */
	SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
		AD193X_DACR1_MUTE, 1, 1),
	SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
		AD193X_DACR2_MUTE, 1, 1),
	SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
		AD193X_DACR3_MUTE, 1, 1),
	SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
		AD193X_DACR4_MUTE, 1, 1),

	/* ADC high-pass filter */
	SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
			AD193X_ADC_HIGHPASS_FILTER, 1, 0),

	/* DAC de-emphasis */
	SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
};

static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
	SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
	SND_SOC_DAPM_INPUT("ADC1IN"),
	SND_SOC_DAPM_INPUT("ADC2IN"),
};

static const struct snd_soc_dapm_route audio_paths[] = {
	{ "DAC", NULL, "PLL_PWR" },
	{ "ADC", NULL, "PLL_PWR" },
	{ "DAC", NULL, "ADC_PWR" },
	{ "ADC", NULL, "ADC_PWR" },
	{ "DAC1OUT", "DAC1 Switch", "DAC" },
	{ "DAC2OUT", "DAC2 Switch", "DAC" },
	{ "DAC3OUT", "DAC3 Switch", "DAC" },
	{ "DAC4OUT", "DAC4 Switch", "DAC" },
	{ "ADC", "ADC1 Switch", "ADC1IN" },
	{ "ADC", "ADC2 Switch", "ADC2IN" },
};

/*
 * DAI ops entries
 */

static int ad193x_mute(struct snd_soc_dai *dai, int mute)
{
	struct snd_soc_codec *codec = dai->codec;
	int reg;

	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
	reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg &
		(~AD193X_DAC_MASTER_MUTE);
	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);

	return 0;
}

static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
			       unsigned int rx_mask, int slots, int width)
{
	struct snd_soc_codec *codec = dai->codec;
	int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
	int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);

	dac_reg &= ~AD193X_DAC_CHAN_MASK;
	adc_reg &= ~AD193X_ADC_CHAN_MASK;

	switch (slots) {
	case 2:
		dac_reg |= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT;
		adc_reg |= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT;
		break;
	case 4:
		dac_reg |= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT;
		adc_reg |= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT;
		break;
	case 8:
		dac_reg |= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT;
		adc_reg |= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT;
		break;
	case 16:
		dac_reg |= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT;
		adc_reg |= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);

	return 0;
}

static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	int adc_reg1, adc_reg2, dac_reg;

	adc_reg1 = snd_soc_read(codec, AD193X_ADC_CTRL1);
	adc_reg2 = snd_soc_read(codec, AD193X_ADC_CTRL2);
	dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);

	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
	 * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
	 */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
		adc_reg1 |= AD193X_ADC_SERFMT_TDM;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
		adc_reg1 |= AD193X_ADC_SERFMT_AUX;
		break;
	default:
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
		adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
		adc_reg2 &= ~AD193X_ADC_BCLK_INV;
		dac_reg &= ~AD193X_DAC_LEFT_HIGH;
		dac_reg &= ~AD193X_DAC_BCLK_INV;
		break;
	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
		adc_reg2 |= AD193X_ADC_LEFT_HIGH;
		adc_reg2 &= ~AD193X_ADC_BCLK_INV;
		dac_reg |= AD193X_DAC_LEFT_HIGH;
		dac_reg &= ~AD193X_DAC_BCLK_INV;
		break;
	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
		adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
		adc_reg2 |= AD193X_ADC_BCLK_INV;
		dac_reg &= ~AD193X_DAC_LEFT_HIGH;
		dac_reg |= AD193X_DAC_BCLK_INV;
		break;

	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
		adc_reg2 |= AD193X_ADC_LEFT_HIGH;
		adc_reg2 |= AD193X_ADC_BCLK_INV;
		dac_reg |= AD193X_DAC_LEFT_HIGH;
		dac_reg |= AD193X_DAC_BCLK_INV;
		break;
	default:
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
		adc_reg2 |= AD193X_ADC_LCR_MASTER;
		adc_reg2 |= AD193X_ADC_BCLK_MASTER;
		dac_reg |= AD193X_DAC_LCR_MASTER;
		dac_reg |= AD193X_DAC_BCLK_MASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
		adc_reg2 |= AD193X_ADC_LCR_MASTER;
		adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
		dac_reg |= AD193X_DAC_LCR_MASTER;
		dac_reg &= ~AD193X_DAC_BCLK_MASTER;
		break;
	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
		adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
		adc_reg2 |= AD193X_ADC_BCLK_MASTER;
		dac_reg &= ~AD193X_DAC_LCR_MASTER;
		dac_reg |= AD193X_DAC_BCLK_MASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
		adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
		adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
		dac_reg &= ~AD193X_DAC_LCR_MASTER;
		dac_reg &= ~AD193X_DAC_BCLK_MASTER;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, AD193X_ADC_CTRL1, adc_reg1);
	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg2);
	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);

	return 0;
}

static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
		int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	switch (freq) {
	case 12288000:
	case 18432000:
	case 24576000:
	case 36864000:
		ad193x->sysclk = freq;
		return 0;
	}
	return -EINVAL;
}

static int ad193x_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params,
		struct snd_soc_dai *dai)
{
	int word_len = 0, reg = 0, master_rate = 0;

	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->codec;
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);

	/* bit size */
	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		word_len = 3;
		break;
	case SNDRV_PCM_FORMAT_S20_3LE:
		word_len = 1;
		break;
	case SNDRV_PCM_FORMAT_S24_LE:
	case SNDRV_PCM_FORMAT_S32_LE:
		word_len = 0;
		break;
	}

	switch (ad193x->sysclk) {
	case 12288000:
		master_rate = AD193X_PLL_INPUT_256;
		break;
	case 18432000:
		master_rate = AD193X_PLL_INPUT_384;
		break;
	case 24576000:
		master_rate = AD193X_PLL_INPUT_512;
		break;
	case 36864000:
		master_rate = AD193X_PLL_INPUT_768;
		break;
	}

	reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
	reg = (reg & AD193X_PLL_INPUT_MASK) | master_rate;
	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);

	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
	reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) | word_len;
	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);

	reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
	reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len;
	snd_soc_write(codec, AD193X_ADC_CTRL1, reg);

	return 0;
}

static struct snd_soc_dai_ops ad193x_dai_ops = {
	.hw_params = ad193x_hw_params,
	.digital_mute = ad193x_mute,
	.set_tdm_slot = ad193x_set_tdm_slot,
	.set_sysclk	= ad193x_set_dai_sysclk,
	.set_fmt = ad193x_set_dai_fmt,
};

/* codec DAI instance */
static struct snd_soc_dai_driver ad193x_dai = {
	.name = "ad193x-hifi",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 8,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
	},
	.capture = {
		.stream_name = "Capture",
		.channels_min = 2,
		.channels_max = 4,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
	},
	.ops = &ad193x_dai_ops,
};

static int ad193x_probe(struct snd_soc_codec *codec)
{
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int ret;

	if (ad193x->control_type == SND_SOC_I2C)
		ret = snd_soc_codec_set_cache_io(codec, 8, 8, ad193x->control_type);
	else
		ret = snd_soc_codec_set_cache_io(codec, 16, 8, ad193x->control_type);
	if (ret < 0) {
		dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
		return ret;
	}

	/* default setting for ad193x */

	/* unmute dac channels */
	snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0);
	/* de-emphasis: 48kHz, powedown dac */
	snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A);
	/* powerdown dac, dac in tdm mode */
	snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41);
	/* high-pass filter enable */
	snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3);
	/* sata delay=1, adc aux mode */
	snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43);
	/* pll input: mclki/xi */
	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
	snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);

	snd_soc_add_controls(codec, ad193x_snd_controls,
			     ARRAY_SIZE(ad193x_snd_controls));
	snd_soc_dapm_new_controls(dapm, ad193x_dapm_widgets,
				  ARRAY_SIZE(ad193x_dapm_widgets));
	snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));

	return ret;
}

static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
	.probe = 	ad193x_probe,
	.reg_cache_default = ad193x_reg,
	.reg_cache_size = AD193X_NUM_REGS,
	.reg_word_size = sizeof(u16),
};

#if defined(CONFIG_SPI_MASTER)
static int __devinit ad193x_spi_probe(struct spi_device *spi)
{
	struct ad193x_priv *ad193x;
	int ret;

	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	if (ad193x == NULL)
		return -ENOMEM;

	spi_set_drvdata(spi, ad193x);
	ad193x->control_type = SND_SOC_SPI;

	ret = snd_soc_register_codec(&spi->dev,
			&soc_codec_dev_ad193x, &ad193x_dai, 1);
	if (ret < 0)
		kfree(ad193x);
	return ret;
}

static int __devexit ad193x_spi_remove(struct spi_device *spi)
{
	snd_soc_unregister_codec(&spi->dev);
	kfree(spi_get_drvdata(spi));
	return 0;
}

static struct spi_driver ad193x_spi_driver = {
	.driver = {
		.name	= "ad193x",
		.owner	= THIS_MODULE,
	},
	.probe		= ad193x_spi_probe,
	.remove		= __devexit_p(ad193x_spi_remove),
};
#endif

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static const struct i2c_device_id ad193x_id[] = {
	{ "ad1936", 0 },
	{ "ad1937", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ad193x_id);

static int __devinit ad193x_i2c_probe(struct i2c_client *client,
		const struct i2c_device_id *id)
{
	struct ad193x_priv *ad193x;
	int ret;

	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	if (ad193x == NULL)
		return -ENOMEM;

	i2c_set_clientdata(client, ad193x);
	ad193x->control_type = SND_SOC_I2C;

	ret =  snd_soc_register_codec(&client->dev,
			&soc_codec_dev_ad193x, &ad193x_dai, 1);
	if (ret < 0)
		kfree(ad193x);
	return ret;
}

static int __devexit ad193x_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);
	kfree(i2c_get_clientdata(client));
	return 0;
}

static struct i2c_driver ad193x_i2c_driver = {
	.driver = {
		.name = "ad193x",
	},
	.probe    = ad193x_i2c_probe,
	.remove   = __devexit_p(ad193x_i2c_remove),
	.id_table = ad193x_id,
};
#endif

static int __init ad193x_modinit(void)
{
	int ret;

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
	ret =  i2c_add_driver(&ad193x_i2c_driver);
	if (ret != 0) {
		printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
				ret);
	}
#endif

#if defined(CONFIG_SPI_MASTER)
	ret = spi_register_driver(&ad193x_spi_driver);
	if (ret != 0) {
		printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
				ret);
	}
#endif
	return ret;
}
module_init(ad193x_modinit);

static void __exit ad193x_modexit(void)
{
#if defined(CONFIG_SPI_MASTER)
	spi_unregister_driver(&ad193x_spi_driver);
#endif

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
	i2c_del_driver(&ad193x_i2c_driver);
#endif
}
module_exit(ad193x_modexit);

MODULE_DESCRIPTION("ASoC ad193x driver");
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
a1533d94 BS	1	/*
	2	* AD193X Audio Codec driver supporting AD1936/7/8/9
	3	*
	4	* Copyright 2010 Analog Devices Inc.
	5	*
	6	* Licensed under the GPL-2 or later.
	7	*/
	8
	9	#include <linux/init.h>
	10	#include <linux/module.h>
	11	#include <linux/kernel.h>
	12	#include <linux/device.h>
	13	#include <linux/i2c.h>
	14	#include <linux/spi/spi.h>
1b132ea0	15	#include <linux/slab.h>
a1533d94 BS	16	#include <sound/core.h>
	17	#include <sound/pcm.h>
	18	#include <sound/pcm_params.h>
	19	#include <sound/initval.h>
	20	#include <sound/soc.h>
	21	#include <sound/tlv.h>
a1533d94 BS	22	#include "ad193x.h"
	23
	24	/* codec private data */
	25	struct ad193x_priv {
119bfef2	26	enum snd_soc_control_type control_type;
f0fba2ad	27	int sysclk;
a1533d94 BS	28	};
	29
	30	/* ad193x register cache & default register settings */
	31	static const u8 ad193x_reg[AD193X_NUM_REGS] = {
	32	0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0,
	33	};
	34
a1533d94 BS	35	/*
	36	* AD193X volume/mute/de-emphasis etc. controls
	37	*/
	38	static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
	39
	40	static const struct soc_enum ad193x_deemp_enum =
	41	SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);
	42
	43	static const struct snd_kcontrol_new ad193x_snd_controls[] = {
	44	/* DAC volume control */
ba0a24e7	45	SOC_DOUBLE_R("DAC1 Volume", AD193X_DAC_L1_VOL,
a1533d94	46	AD193X_DAC_R1_VOL, 0, 0xFF, 1),
ba0a24e7	47	SOC_DOUBLE_R("DAC2 Volume", AD193X_DAC_L2_VOL,
a1533d94	48	AD193X_DAC_R2_VOL, 0, 0xFF, 1),
ba0a24e7	49	SOC_DOUBLE_R("DAC3 Volume", AD193X_DAC_L3_VOL,
a1533d94	50	AD193X_DAC_R3_VOL, 0, 0xFF, 1),
ba0a24e7	51	SOC_DOUBLE_R("DAC4 Volume", AD193X_DAC_L4_VOL,
a1533d94 BS	52	AD193X_DAC_R4_VOL, 0, 0xFF, 1),
	53
	54	/* ADC switch control */
	55	SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
	56	AD193X_ADCR1_MUTE, 1, 1),
	57	SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
	58	AD193X_ADCR2_MUTE, 1, 1),
	59
	60	/* DAC switch control */
	61	SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
	62	AD193X_DACR1_MUTE, 1, 1),
	63	SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
	64	AD193X_DACR2_MUTE, 1, 1),
	65	SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
	66	AD193X_DACR3_MUTE, 1, 1),
	67	SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
	68	AD193X_DACR4_MUTE, 1, 1),
	69
	70	/* ADC high-pass filter */
	71	SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
	72	AD193X_ADC_HIGHPASS_FILTER, 1, 0),
	73
	74	/* DAC de-emphasis */
	75	SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
	76	};
	77
	78	static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
	79	SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
	80	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
	81	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
	82	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
	83	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
	84	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
	85	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
	86	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
	87	SND_SOC_DAPM_INPUT("ADC1IN"),
	88	SND_SOC_DAPM_INPUT("ADC2IN"),
	89	};
	90
	91	static const struct snd_soc_dapm_route audio_paths[] = {
	92	{ "DAC", NULL, "PLL_PWR" },
	93	{ "ADC", NULL, "PLL_PWR" },
	94	{ "DAC", NULL, "ADC_PWR" },
	95	{ "ADC", NULL, "ADC_PWR" },
	96	{ "DAC1OUT", "DAC1 Switch", "DAC" },
	97	{ "DAC2OUT", "DAC2 Switch", "DAC" },
	98	{ "DAC3OUT", "DAC3 Switch", "DAC" },
	99	{ "DAC4OUT", "DAC4 Switch", "DAC" },
	100	{ "ADC", "ADC1 Switch", "ADC1IN" },
	101	{ "ADC", "ADC2 Switch", "ADC2IN" },
	102	};
	103
	104	/*
	105	* DAI ops entries
	106	*/
	107
	108	static int ad193x_mute(struct snd_soc_dai *dai, int mute)
	109	{
	110	struct snd_soc_codec *codec = dai->codec;
	111	int reg;
	112
	113	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
	114	reg = (mute > 0) ? reg \| AD193X_DAC_MASTER_MUTE : reg &
	115	(~AD193X_DAC_MASTER_MUTE);
116	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
117
118	return 0;
119	}
120
121	static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
122	unsigned int rx_mask, int slots, int width)
123	{
124	struct snd_soc_codec *codec = dai->codec;
125	int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
126	int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
127
128	dac_reg &= ~AD193X_DAC_CHAN_MASK;
129	adc_reg &= ~AD193X_ADC_CHAN_MASK;
130
131	switch (slots) {
132	case 2:
133	dac_reg \|= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT;
134	adc_reg \|= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT;
135	break;
136	case 4:
137	dac_reg \|= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT;
138	adc_reg \|= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT;
139	break;
140	case 8:
141	dac_reg \|= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT;
142	adc_reg \|= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT;
143	break;
144	case 16:
145	dac_reg \|= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT;
146	adc_reg \|= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT;
147	break;
148	default:
149	return -EINVAL;
150	}
151
152	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
153	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
154
155	return 0;
156	}
157
158	static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
159	unsigned int fmt)
160	{
161	struct snd_soc_codec *codec = codec_dai->codec;
d6bdc0f7	162	int adc_reg1, adc_reg2, dac_reg;
a1533d94	163
d6bdc0f7 BS	164	adc_reg1 = snd_soc_read(codec, AD193X_ADC_CTRL1);
d6bdc0f7 BS	165	adc_reg2 = snd_soc_read(codec, AD193X_ADC_CTRL2);
a1533d94 BS	166	dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
	167
	168	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
	169	* with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
	170	*/
	171	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	172	case SND_SOC_DAIFMT_I2S:
d6bdc0f7 BS	173	adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
d6bdc0f7 BS	174	adc_reg1 \|= AD193X_ADC_SERFMT_TDM;
a1533d94 BS	175	break;
a1533d94 BS	176	case SND_SOC_DAIFMT_DSP_A:
d6bdc0f7 BS	177	adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
d6bdc0f7 BS	178	adc_reg1 \|= AD193X_ADC_SERFMT_AUX;
a1533d94 BS	179	break;
	180	default:
	181	return -EINVAL;
	182	}
	183
	184	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	185	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
d6bdc0f7 BS	186	adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	187	adc_reg2 &= ~AD193X_ADC_BCLK_INV;
a1533d94 BS	188	dac_reg &= ~AD193X_DAC_LEFT_HIGH;
	189	dac_reg &= ~AD193X_DAC_BCLK_INV;
	190	break;
	191	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
d6bdc0f7 BS	192	adc_reg2 \|= AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	193	adc_reg2 &= ~AD193X_ADC_BCLK_INV;
a1533d94 BS	194	dac_reg \|= AD193X_DAC_LEFT_HIGH;
	195	dac_reg &= ~AD193X_DAC_BCLK_INV;
	196	break;
	197	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
d6bdc0f7 BS	198	adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	199	adc_reg2 \|= AD193X_ADC_BCLK_INV;
a1533d94 BS	200	dac_reg &= ~AD193X_DAC_LEFT_HIGH;
	201	dac_reg \|= AD193X_DAC_BCLK_INV;
	202	break;
	203
	204	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
d6bdc0f7 BS	205	adc_reg2 \|= AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	206	adc_reg2 \|= AD193X_ADC_BCLK_INV;
a1533d94 BS	207	dac_reg \|= AD193X_DAC_LEFT_HIGH;
	208	dac_reg \|= AD193X_DAC_BCLK_INV;
	209	break;
	210	default:
	211	return -EINVAL;
	212	}
	213
	214	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	215	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
d6bdc0f7 BS	216	adc_reg2 \|= AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	217	adc_reg2 \|= AD193X_ADC_BCLK_MASTER;
a1533d94 BS	218	dac_reg \|= AD193X_DAC_LCR_MASTER;
	219	dac_reg \|= AD193X_DAC_BCLK_MASTER;
	220	break;
	221	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
d6bdc0f7 BS	222	adc_reg2 \|= AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	223	adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
a1533d94 BS	224	dac_reg \|= AD193X_DAC_LCR_MASTER;
	225	dac_reg &= ~AD193X_DAC_BCLK_MASTER;
	226	break;
	227	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
d6bdc0f7 BS	228	adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	229	adc_reg2 \|= AD193X_ADC_BCLK_MASTER;
a1533d94 BS	230	dac_reg &= ~AD193X_DAC_LCR_MASTER;
	231	dac_reg \|= AD193X_DAC_BCLK_MASTER;
	232	break;
	233	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
d6bdc0f7 BS	234	adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	235	adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
a1533d94 BS	236	dac_reg &= ~AD193X_DAC_LCR_MASTER;
	237	dac_reg &= ~AD193X_DAC_BCLK_MASTER;
	238	break;
	239	default:
	240	return -EINVAL;
	241	}
	242
d6bdc0f7 BS	243	snd_soc_write(codec, AD193X_ADC_CTRL1, adc_reg1);
d6bdc0f7 BS	244	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg2);
a1533d94 BS	245	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
	246
	247	return 0;
	248	}
	249
fab90aa4 BS	250	static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	251	int clk_id, unsigned int freq, int dir)
	252	{
	253	struct snd_soc_codec *codec = codec_dai->codec;
	254	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	255	switch (freq) {
	256	case 12288000:
	257	case 18432000:
	258	case 24576000:
	259	case 36864000:
	260	ad193x->sysclk = freq;
	261	return 0;
	262	}
	263	return -EINVAL;
	264	}
	265
a1533d94 BS	266	static int ad193x_hw_params(struct snd_pcm_substream *substream,
	267	struct snd_pcm_hw_params *params,
	268	struct snd_soc_dai *dai)
	269	{
fab90aa4	270	int word_len = 0, reg = 0, master_rate = 0;
a1533d94 BS	271
a1533d94 BS	272	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	273	struct snd_soc_codec *codec = rtd->codec;
fab90aa4	274	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
a1533d94 BS	275
	276	/* bit size */
	277	switch (params_format(params)) {
	278	case SNDRV_PCM_FORMAT_S16_LE:
	279	word_len = 3;
	280	break;
	281	case SNDRV_PCM_FORMAT_S20_3LE:
	282	word_len = 1;
	283	break;
	284	case SNDRV_PCM_FORMAT_S24_LE:
	285	case SNDRV_PCM_FORMAT_S32_LE:
	286	word_len = 0;
	287	break;
	288	}
	289
fab90aa4 BS	290	switch (ad193x->sysclk) {
	291	case 12288000:
	292	master_rate = AD193X_PLL_INPUT_256;
	293	break;
	294	case 18432000:
	295	master_rate = AD193X_PLL_INPUT_384;
	296	break;
	297	case 24576000:
	298	master_rate = AD193X_PLL_INPUT_512;
	299	break;
	300	case 36864000:
	301	master_rate = AD193X_PLL_INPUT_768;
	302	break;
	303	}
	304
	305	reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
	306	reg = (reg & AD193X_PLL_INPUT_MASK) \| master_rate;
	307	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
	308
a1533d94 BS	309	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
	310	reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) \| word_len;
	311	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
	312
	313	reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
	314	reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) \| word_len;
	315	snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
	316
	317	return 0;
	318	}
	319
9dd7b79a BS	320	static struct snd_soc_dai_ops ad193x_dai_ops = {
	321	.hw_params = ad193x_hw_params,
	322	.digital_mute = ad193x_mute,
	323	.set_tdm_slot = ad193x_set_tdm_slot,
fab90aa4	324	.set_sysclk = ad193x_set_dai_sysclk,
9dd7b79a BS	325	.set_fmt = ad193x_set_dai_fmt,
	326	};
	327
	328	/* codec DAI instance */
f0fba2ad LG	329	static struct snd_soc_dai_driver ad193x_dai = {
f0fba2ad LG	330	.name = "ad193x-hifi",
9dd7b79a BS	331	.playback = {
	332	.stream_name = "Playback",
	333	.channels_min = 2,
	334	.channels_max = 8,
	335	.rates = SNDRV_PCM_RATE_48000,
	336	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	337	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	338	},
	339	.capture = {
	340	.stream_name = "Capture",
	341	.channels_min = 2,
	342	.channels_max = 4,
	343	.rates = SNDRV_PCM_RATE_48000,
	344	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	345	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	346	},
	347	.ops = &ad193x_dai_ops,
	348	};
9dd7b79a	349
f0fba2ad	350	static int ad193x_probe(struct snd_soc_codec *codec)
a1533d94	351	{
f0fba2ad	352	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
ce6120cc	353	struct snd_soc_dapm_context *dapm = &codec->dapm;
f0fba2ad	354	int ret;
a1533d94	355
119bfef2 SJ	356	if (ad193x->control_type == SND_SOC_I2C)
119bfef2 SJ	357	ret = snd_soc_codec_set_cache_io(codec, 8, 8, ad193x->control_type);
f0fba2ad	358	else
119bfef2	359	ret = snd_soc_codec_set_cache_io(codec, 16, 8, ad193x->control_type);
f0fba2ad	360	if (ret < 0) {
119bfef2	361	dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
f0fba2ad	362	return ret;
a1533d94 BS	363	}
a1533d94 BS	364
f0fba2ad	365	/* default setting for ad193x */
a1533d94	366
f0fba2ad LG	367	/* unmute dac channels */
	368	snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0);
	369	/* de-emphasis: 48kHz, powedown dac */
	370	snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A);
	371	/* powerdown dac, dac in tdm mode */
	372	snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41);
	373	/* high-pass filter enable */
	374	snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3);
	375	/* sata delay=1, adc aux mode */
	376	snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43);
	377	/* pll input: mclki/xi */
	378	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
	379	snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);
a1533d94 BS	380
	381	snd_soc_add_controls(codec, ad193x_snd_controls,
	382	ARRAY_SIZE(ad193x_snd_controls));
ce6120cc	383	snd_soc_dapm_new_controls(dapm, ad193x_dapm_widgets,
a1533d94	384	ARRAY_SIZE(ad193x_dapm_widgets));
ce6120cc	385	snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
a1533d94	386
a1533d94 BS	387	return ret;
	388	}
	389
f0fba2ad	390	static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
a1533d94	391	.probe = ad193x_probe,
f0fba2ad LG	392	.reg_cache_default = ad193x_reg,
	393	.reg_cache_size = AD193X_NUM_REGS,
	394	.reg_word_size = sizeof(u16),
a1533d94	395	};
a1533d94 BS	396
	397	#if defined(CONFIG_SPI_MASTER)
	398	static int __devinit ad193x_spi_probe(struct spi_device *spi)
	399	{
f0fba2ad LG	400	struct ad193x_priv *ad193x;
	401	int ret;
	402
	403	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	404	if (ad193x == NULL)
	405	return -ENOMEM;
	406
	407	spi_set_drvdata(spi, ad193x);
119bfef2	408	ad193x->control_type = SND_SOC_SPI;
f0fba2ad LG	409
	410	ret = snd_soc_register_codec(&spi->dev,
	411	&soc_codec_dev_ad193x, &ad193x_dai, 1);
	412	if (ret < 0)
	413	kfree(ad193x);
	414	return ret;
a1533d94 BS	415	}
	416
	417	static int __devexit ad193x_spi_remove(struct spi_device *spi)
	418	{
f0fba2ad LG	419	snd_soc_unregister_codec(&spi->dev);
	420	kfree(spi_get_drvdata(spi));
	421	return 0;
a1533d94 BS	422	}
	423
	424	static struct spi_driver ad193x_spi_driver = {
	425	.driver = {
e43a7d41	426	.name = "ad193x",
a1533d94 BS	427	.owner = THIS_MODULE,
	428	},
	429	.probe = ad193x_spi_probe,
	430	.remove = __devexit_p(ad193x_spi_remove),
	431	};
	432	#endif
	433
	434	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	435	static const struct i2c_device_id ad193x_id[] = {
	436	{ "ad1936", 0 },
	437	{ "ad1937", 0 },
	438	{ }
	439	};
	440	MODULE_DEVICE_TABLE(i2c, ad193x_id);
	441
	442	static int __devinit ad193x_i2c_probe(struct i2c_client *client,
	443	const struct i2c_device_id *id)
	444	{
f0fba2ad LG	445	struct ad193x_priv *ad193x;
	446	int ret;
	447
	448	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	449	if (ad193x == NULL)
	450	return -ENOMEM;
	451
	452	i2c_set_clientdata(client, ad193x);
119bfef2	453	ad193x->control_type = SND_SOC_I2C;
f0fba2ad LG	454
	455	ret = snd_soc_register_codec(&client->dev,
	456	&soc_codec_dev_ad193x, &ad193x_dai, 1);
	457	if (ret < 0)
	458	kfree(ad193x);
	459	return ret;
a1533d94 BS	460	}
	461
	462	static int __devexit ad193x_i2c_remove(struct i2c_client *client)
	463	{
f0fba2ad LG	464	snd_soc_unregister_codec(&client->dev);
	465	kfree(i2c_get_clientdata(client));
	466	return 0;
a1533d94 BS	467	}
	468
	469	static struct i2c_driver ad193x_i2c_driver = {
	470	.driver = {
e43a7d41	471	.name = "ad193x",
a1533d94 BS	472	},
	473	.probe = ad193x_i2c_probe,
	474	.remove = __devexit_p(ad193x_i2c_remove),
	475	.id_table = ad193x_id,
	476	};
	477	#endif
	478
	479	static int __init ad193x_modinit(void)
	480	{
	481	int ret;
	482
	483	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	484	ret = i2c_add_driver(&ad193x_i2c_driver);
	485	if (ret != 0) {
	486	printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
	487	ret);
	488	}
	489	#endif
	490
	491	#if defined(CONFIG_SPI_MASTER)
	492	ret = spi_register_driver(&ad193x_spi_driver);
	493	if (ret != 0) {
	494	printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
	495	ret);
	496	}
	497	#endif
	498	return ret;
	499	}
	500	module_init(ad193x_modinit);
	501
	502	static void __exit ad193x_modexit(void)
	503	{
	504	#if defined(CONFIG_SPI_MASTER)
	505	spi_unregister_driver(&ad193x_spi_driver);
	506	#endif
	507
	508	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	509	i2c_del_driver(&ad193x_i2c_driver);
	510	#endif
	511	}
	512	module_exit(ad193x_modexit);
	513
	514	MODULE_DESCRIPTION("ASoC ad193x driver");
	515	MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
	516	MODULE_LICENSE("GPL");