[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 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 << AD193X_DAC_WORD_LEN_SHFT);
	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,
};

#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	};
a1533d94 BS	29
a1533d94 BS	30	/*
	31	* AD193X volume/mute/de-emphasis etc. controls
	32	*/
	33	static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
	34
	35	static const struct soc_enum ad193x_deemp_enum =
	36	SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);
	37
	38	static const struct snd_kcontrol_new ad193x_snd_controls[] = {
	39	/* DAC volume control */
ba0a24e7	40	SOC_DOUBLE_R("DAC1 Volume", AD193X_DAC_L1_VOL,
a1533d94	41	AD193X_DAC_R1_VOL, 0, 0xFF, 1),
ba0a24e7	42	SOC_DOUBLE_R("DAC2 Volume", AD193X_DAC_L2_VOL,
a1533d94	43	AD193X_DAC_R2_VOL, 0, 0xFF, 1),
ba0a24e7	44	SOC_DOUBLE_R("DAC3 Volume", AD193X_DAC_L3_VOL,
a1533d94	45	AD193X_DAC_R3_VOL, 0, 0xFF, 1),
ba0a24e7	46	SOC_DOUBLE_R("DAC4 Volume", AD193X_DAC_L4_VOL,
a1533d94 BS	47	AD193X_DAC_R4_VOL, 0, 0xFF, 1),
	48
	49	/* ADC switch control */
	50	SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
	51	AD193X_ADCR1_MUTE, 1, 1),
	52	SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
	53	AD193X_ADCR2_MUTE, 1, 1),
	54
	55	/* DAC switch control */
	56	SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
	57	AD193X_DACR1_MUTE, 1, 1),
	58	SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
	59	AD193X_DACR2_MUTE, 1, 1),
	60	SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
	61	AD193X_DACR3_MUTE, 1, 1),
	62	SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
	63	AD193X_DACR4_MUTE, 1, 1),
	64
	65	/* ADC high-pass filter */
	66	SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
	67	AD193X_ADC_HIGHPASS_FILTER, 1, 0),
	68
	69	/* DAC de-emphasis */
	70	SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
	71	};
	72
	73	static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
	74	SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
	75	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
	76	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
	77	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
	78	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
	79	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
	80	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
	81	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
	82	SND_SOC_DAPM_INPUT("ADC1IN"),
	83	SND_SOC_DAPM_INPUT("ADC2IN"),
	84	};
	85
	86	static const struct snd_soc_dapm_route audio_paths[] = {
	87	{ "DAC", NULL, "PLL_PWR" },
	88	{ "ADC", NULL, "PLL_PWR" },
	89	{ "DAC", NULL, "ADC_PWR" },
	90	{ "ADC", NULL, "ADC_PWR" },
	91	{ "DAC1OUT", "DAC1 Switch", "DAC" },
	92	{ "DAC2OUT", "DAC2 Switch", "DAC" },
	93	{ "DAC3OUT", "DAC3 Switch", "DAC" },
	94	{ "DAC4OUT", "DAC4 Switch", "DAC" },
	95	{ "ADC", "ADC1 Switch", "ADC1IN" },
	96	{ "ADC", "ADC2 Switch", "ADC2IN" },
	97	};
	98
	99	/*
	100	* DAI ops entries
	101	*/
	102
	103	static int ad193x_mute(struct snd_soc_dai *dai, int mute)
	104	{
	105	struct snd_soc_codec *codec = dai->codec;
	106	int reg;
	107
	108	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
	109	reg = (mute > 0) ? reg \| AD193X_DAC_MASTER_MUTE : reg &
	110	(~AD193X_DAC_MASTER_MUTE);
111	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
112
113	return 0;
114	}
115
116	static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
117	unsigned int rx_mask, int slots, int width)
118	{
119	struct snd_soc_codec *codec = dai->codec;
120	int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
121	int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
122
123	dac_reg &= ~AD193X_DAC_CHAN_MASK;
124	adc_reg &= ~AD193X_ADC_CHAN_MASK;
125
126	switch (slots) {
127	case 2:
128	dac_reg \|= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT;
129	adc_reg \|= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT;
130	break;
131	case 4:
132	dac_reg \|= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT;
133	adc_reg \|= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT;
134	break;
135	case 8:
136	dac_reg \|= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT;
137	adc_reg \|= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT;
138	break;
139	case 16:
140	dac_reg \|= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT;
141	adc_reg \|= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT;
142	break;
143	default:
144	return -EINVAL;
145	}
146
147	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
148	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
149
150	return 0;
151	}
152
153	static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
154	unsigned int fmt)
155	{
156	struct snd_soc_codec *codec = codec_dai->codec;
d6bdc0f7	157	int adc_reg1, adc_reg2, dac_reg;
a1533d94	158
d6bdc0f7 BS	159	adc_reg1 = snd_soc_read(codec, AD193X_ADC_CTRL1);
d6bdc0f7 BS	160	adc_reg2 = snd_soc_read(codec, AD193X_ADC_CTRL2);
a1533d94 BS	161	dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
	162
	163	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
	164	* with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
	165	*/
	166	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	167	case SND_SOC_DAIFMT_I2S:
d6bdc0f7 BS	168	adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
d6bdc0f7 BS	169	adc_reg1 \|= AD193X_ADC_SERFMT_TDM;
a1533d94 BS	170	break;
a1533d94 BS	171	case SND_SOC_DAIFMT_DSP_A:
d6bdc0f7 BS	172	adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
d6bdc0f7 BS	173	adc_reg1 \|= AD193X_ADC_SERFMT_AUX;
a1533d94 BS	174	break;
	175	default:
	176	return -EINVAL;
	177	}
	178
	179	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	180	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
d6bdc0f7 BS	181	adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	182	adc_reg2 &= ~AD193X_ADC_BCLK_INV;
a1533d94 BS	183	dac_reg &= ~AD193X_DAC_LEFT_HIGH;
	184	dac_reg &= ~AD193X_DAC_BCLK_INV;
	185	break;
	186	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
d6bdc0f7 BS	187	adc_reg2 \|= AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	188	adc_reg2 &= ~AD193X_ADC_BCLK_INV;
a1533d94 BS	189	dac_reg \|= AD193X_DAC_LEFT_HIGH;
	190	dac_reg &= ~AD193X_DAC_BCLK_INV;
	191	break;
	192	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
d6bdc0f7 BS	193	adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	194	adc_reg2 \|= AD193X_ADC_BCLK_INV;
a1533d94 BS	195	dac_reg &= ~AD193X_DAC_LEFT_HIGH;
	196	dac_reg \|= AD193X_DAC_BCLK_INV;
	197	break;
	198
	199	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
d6bdc0f7 BS	200	adc_reg2 \|= AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	201	adc_reg2 \|= AD193X_ADC_BCLK_INV;
a1533d94 BS	202	dac_reg \|= AD193X_DAC_LEFT_HIGH;
	203	dac_reg \|= AD193X_DAC_BCLK_INV;
	204	break;
	205	default:
	206	return -EINVAL;
	207	}
	208
	209	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	210	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
d6bdc0f7 BS	211	adc_reg2 \|= AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	212	adc_reg2 \|= AD193X_ADC_BCLK_MASTER;
a1533d94 BS	213	dac_reg \|= AD193X_DAC_LCR_MASTER;
	214	dac_reg \|= AD193X_DAC_BCLK_MASTER;
	215	break;
	216	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
d6bdc0f7 BS	217	adc_reg2 \|= AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	218	adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
a1533d94 BS	219	dac_reg \|= AD193X_DAC_LCR_MASTER;
	220	dac_reg &= ~AD193X_DAC_BCLK_MASTER;
	221	break;
	222	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
d6bdc0f7 BS	223	adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	224	adc_reg2 \|= AD193X_ADC_BCLK_MASTER;
a1533d94 BS	225	dac_reg &= ~AD193X_DAC_LCR_MASTER;
	226	dac_reg \|= AD193X_DAC_BCLK_MASTER;
	227	break;
	228	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
d6bdc0f7 BS	229	adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	230	adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
a1533d94 BS	231	dac_reg &= ~AD193X_DAC_LCR_MASTER;
	232	dac_reg &= ~AD193X_DAC_BCLK_MASTER;
	233	break;
	234	default:
	235	return -EINVAL;
	236	}
	237
d6bdc0f7 BS	238	snd_soc_write(codec, AD193X_ADC_CTRL1, adc_reg1);
d6bdc0f7 BS	239	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg2);
a1533d94 BS	240	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
	241
	242	return 0;
	243	}
	244
fab90aa4 BS	245	static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	246	int clk_id, unsigned int freq, int dir)
	247	{
	248	struct snd_soc_codec *codec = codec_dai->codec;
	249	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	250	switch (freq) {
	251	case 12288000:
	252	case 18432000:
	253	case 24576000:
	254	case 36864000:
	255	ad193x->sysclk = freq;
	256	return 0;
	257	}
	258	return -EINVAL;
	259	}
	260
a1533d94 BS	261	static int ad193x_hw_params(struct snd_pcm_substream *substream,
	262	struct snd_pcm_hw_params *params,
	263	struct snd_soc_dai *dai)
	264	{
fab90aa4	265	int word_len = 0, reg = 0, master_rate = 0;
a1533d94 BS	266
a1533d94 BS	267	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	268	struct snd_soc_codec *codec = rtd->codec;
fab90aa4	269	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
a1533d94 BS	270
	271	/* bit size */
	272	switch (params_format(params)) {
	273	case SNDRV_PCM_FORMAT_S16_LE:
	274	word_len = 3;
	275	break;
	276	case SNDRV_PCM_FORMAT_S20_3LE:
	277	word_len = 1;
	278	break;
	279	case SNDRV_PCM_FORMAT_S24_LE:
	280	case SNDRV_PCM_FORMAT_S32_LE:
	281	word_len = 0;
	282	break;
	283	}
	284
fab90aa4 BS	285	switch (ad193x->sysclk) {
	286	case 12288000:
	287	master_rate = AD193X_PLL_INPUT_256;
	288	break;
	289	case 18432000:
	290	master_rate = AD193X_PLL_INPUT_384;
	291	break;
	292	case 24576000:
	293	master_rate = AD193X_PLL_INPUT_512;
	294	break;
	295	case 36864000:
	296	master_rate = AD193X_PLL_INPUT_768;
	297	break;
	298	}
	299
	300	reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
	301	reg = (reg & AD193X_PLL_INPUT_MASK) \| master_rate;
	302	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
	303
a1533d94	304	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
95c93d85 SJ	305	reg = (reg & (~AD193X_DAC_WORD_LEN_MASK))
95c93d85 SJ	306	\| (word_len << AD193X_DAC_WORD_LEN_SHFT);
a1533d94 BS	307	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
	308
	309	reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
	310	reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) \| word_len;
	311	snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
	312
	313	return 0;
	314	}
	315
9dd7b79a BS	316	static struct snd_soc_dai_ops ad193x_dai_ops = {
	317	.hw_params = ad193x_hw_params,
	318	.digital_mute = ad193x_mute,
	319	.set_tdm_slot = ad193x_set_tdm_slot,
fab90aa4	320	.set_sysclk = ad193x_set_dai_sysclk,
9dd7b79a BS	321	.set_fmt = ad193x_set_dai_fmt,
	322	};
	323
	324	/* codec DAI instance */
f0fba2ad LG	325	static struct snd_soc_dai_driver ad193x_dai = {
f0fba2ad LG	326	.name = "ad193x-hifi",
9dd7b79a BS	327	.playback = {
	328	.stream_name = "Playback",
	329	.channels_min = 2,
	330	.channels_max = 8,
	331	.rates = SNDRV_PCM_RATE_48000,
	332	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	333	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	334	},
	335	.capture = {
	336	.stream_name = "Capture",
	337	.channels_min = 2,
	338	.channels_max = 4,
	339	.rates = SNDRV_PCM_RATE_48000,
	340	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	341	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	342	},
	343	.ops = &ad193x_dai_ops,
	344	};
9dd7b79a	345
f0fba2ad	346	static int ad193x_probe(struct snd_soc_codec *codec)
a1533d94	347	{
f0fba2ad	348	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
ce6120cc	349	struct snd_soc_dapm_context *dapm = &codec->dapm;
f0fba2ad	350	int ret;
a1533d94	351
119bfef2 SJ	352	if (ad193x->control_type == SND_SOC_I2C)
119bfef2 SJ	353	ret = snd_soc_codec_set_cache_io(codec, 8, 8, ad193x->control_type);
f0fba2ad	354	else
119bfef2	355	ret = snd_soc_codec_set_cache_io(codec, 16, 8, ad193x->control_type);
f0fba2ad	356	if (ret < 0) {
119bfef2	357	dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
f0fba2ad	358	return ret;
a1533d94 BS	359	}
a1533d94 BS	360
f0fba2ad	361	/* default setting for ad193x */
a1533d94	362
f0fba2ad LG	363	/* unmute dac channels */
	364	snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0);
	365	/* de-emphasis: 48kHz, powedown dac */
	366	snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A);
	367	/* powerdown dac, dac in tdm mode */
	368	snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41);
	369	/* high-pass filter enable */
	370	snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3);
	371	/* sata delay=1, adc aux mode */
	372	snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43);
	373	/* pll input: mclki/xi */
	374	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
	375	snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);
a1533d94 BS	376
	377	snd_soc_add_controls(codec, ad193x_snd_controls,
	378	ARRAY_SIZE(ad193x_snd_controls));
ce6120cc	379	snd_soc_dapm_new_controls(dapm, ad193x_dapm_widgets,
a1533d94	380	ARRAY_SIZE(ad193x_dapm_widgets));
ce6120cc	381	snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
a1533d94	382
a1533d94 BS	383	return ret;
	384	}
	385
f0fba2ad	386	static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
a1533d94	387	.probe = ad193x_probe,
a1533d94	388	};
a1533d94 BS	389
	390	#if defined(CONFIG_SPI_MASTER)
	391	static int __devinit ad193x_spi_probe(struct spi_device *spi)
	392	{
f0fba2ad LG	393	struct ad193x_priv *ad193x;
	394	int ret;
	395
	396	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	397	if (ad193x == NULL)
	398	return -ENOMEM;
	399
	400	spi_set_drvdata(spi, ad193x);
119bfef2	401	ad193x->control_type = SND_SOC_SPI;
f0fba2ad LG	402
	403	ret = snd_soc_register_codec(&spi->dev,
	404	&soc_codec_dev_ad193x, &ad193x_dai, 1);
	405	if (ret < 0)
	406	kfree(ad193x);
	407	return ret;
a1533d94 BS	408	}
	409
	410	static int __devexit ad193x_spi_remove(struct spi_device *spi)
	411	{
f0fba2ad LG	412	snd_soc_unregister_codec(&spi->dev);
	413	kfree(spi_get_drvdata(spi));
	414	return 0;
a1533d94 BS	415	}
	416
	417	static struct spi_driver ad193x_spi_driver = {
	418	.driver = {
e43a7d41	419	.name = "ad193x",
a1533d94 BS	420	.owner = THIS_MODULE,
	421	},
	422	.probe = ad193x_spi_probe,
	423	.remove = __devexit_p(ad193x_spi_remove),
	424	};
	425	#endif
	426
	427	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	428	static const struct i2c_device_id ad193x_id[] = {
	429	{ "ad1936", 0 },
	430	{ "ad1937", 0 },
	431	{ }
	432	};
	433	MODULE_DEVICE_TABLE(i2c, ad193x_id);
	434
	435	static int __devinit ad193x_i2c_probe(struct i2c_client *client,
	436	const struct i2c_device_id *id)
	437	{
f0fba2ad LG	438	struct ad193x_priv *ad193x;
	439	int ret;
	440
	441	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	442	if (ad193x == NULL)
	443	return -ENOMEM;
	444
	445	i2c_set_clientdata(client, ad193x);
119bfef2	446	ad193x->control_type = SND_SOC_I2C;
f0fba2ad LG	447
	448	ret = snd_soc_register_codec(&client->dev,
	449	&soc_codec_dev_ad193x, &ad193x_dai, 1);
	450	if (ret < 0)
	451	kfree(ad193x);
	452	return ret;
a1533d94 BS	453	}
	454
	455	static int __devexit ad193x_i2c_remove(struct i2c_client *client)
	456	{
f0fba2ad LG	457	snd_soc_unregister_codec(&client->dev);
	458	kfree(i2c_get_clientdata(client));
	459	return 0;
a1533d94 BS	460	}
	461
	462	static struct i2c_driver ad193x_i2c_driver = {
	463	.driver = {
e43a7d41	464	.name = "ad193x",
a1533d94 BS	465	},
	466	.probe = ad193x_i2c_probe,
	467	.remove = __devexit_p(ad193x_i2c_remove),
	468	.id_table = ad193x_id,
	469	};
	470	#endif
	471
	472	static int __init ad193x_modinit(void)
	473	{
	474	int ret;
	475
	476	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	477	ret = i2c_add_driver(&ad193x_i2c_driver);
	478	if (ret != 0) {
	479	printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
	480	ret);
	481	}
	482	#endif
	483
	484	#if defined(CONFIG_SPI_MASTER)
	485	ret = spi_register_driver(&ad193x_spi_driver);
	486	if (ret != 0) {
	487	printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
	488	ret);
	489	}
	490	#endif
	491	return ret;
	492	}
	493	module_init(ad193x_modinit);
	494
	495	static void __exit ad193x_modexit(void)
	496	{
	497	#if defined(CONFIG_SPI_MASTER)
	498	spi_unregister_driver(&ad193x_spi_driver);
	499	#endif
	500
	501	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	502	i2c_del_driver(&ad193x_i2c_driver);
	503	#endif
	504	}
	505	module_exit(ad193x_modexit);
	506
	507	MODULE_DESCRIPTION("ASoC ad193x driver");
	508	MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
	509	MODULE_LICENSE("GPL");