[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 {
	struct regmap *regmap;
	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;

	if (mute)
		snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
				    AD193X_DAC_MASTER_MUTE,
				    AD193X_DAC_MASTER_MUTE);
	else
		snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
				    AD193X_DAC_MASTER_MUTE, 0);

	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, 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;
	}

	snd_soc_update_bits(codec, AD193X_PLL_CLK_CTRL0,
			    AD193X_PLL_INPUT_MASK, master_rate);

	snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
			    AD193X_DAC_WORD_LEN_MASK,
			    word_len << AD193X_DAC_WORD_LEN_SHFT);

	snd_soc_update_bits(codec, AD193X_ADC_CTRL1,
			    AD193X_ADC_WORD_LEN_MASK, word_len);

	return 0;
}

static const 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);
	int ret;

	codec->control_data = ad193x->regmap;
	ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
	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);

	return ret;
}

static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
	.probe = 	ad193x_probe,
	.controls = ad193x_snd_controls,
	.num_controls = ARRAY_SIZE(ad193x_snd_controls),
	.dapm_widgets = ad193x_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets),
	.dapm_routes = audio_paths,
	.num_dapm_routes = ARRAY_SIZE(audio_paths),
};

#if defined(CONFIG_SPI_MASTER)

static const struct regmap_config ad193x_spi_regmap_config = {
	.val_bits = 8,
	.reg_bits = 16,
	.read_flag_mask = 0x09,
	.write_flag_mask = 0x08,
};

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;

	ad193x->regmap = regmap_init_spi(spi, &ad193x_spi_regmap_config);
	if (IS_ERR(ad193x->regmap)) {
		ret = PTR_ERR(ad193x->regmap);
		goto err_free;
	}

	spi_set_drvdata(spi, ad193x);

	ret = snd_soc_register_codec(&spi->dev,
			&soc_codec_dev_ad193x, &ad193x_dai, 1);
	if (ret < 0)
		goto err_regmap_exit;

	return 0;

err_regmap_exit:
	regmap_exit(ad193x->regmap);
err_free:
	kfree(ad193x);

	return ret;
}

static int __devexit ad193x_spi_remove(struct spi_device *spi)
{
	struct ad193x_priv *ad193x = spi_get_drvdata(spi);

	snd_soc_unregister_codec(&spi->dev);
	regmap_exit(ad193x->regmap);
	kfree(ad193x);
	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 regmap_config ad193x_i2c_regmap_config = {
	.val_bits = 8,
	.reg_bits = 8,
};

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;

	ad193x->regmap = regmap_init_i2c(client, &ad193x_i2c_regmap_config);
	if (IS_ERR(ad193x->regmap)) {
		ret = PTR_ERR(ad193x->regmap);
		goto err_free;
	}

	i2c_set_clientdata(client, ad193x);

	ret =  snd_soc_register_codec(&client->dev,
			&soc_codec_dev_ad193x, &ad193x_dai, 1);
	if (ret < 0)
		goto err_regmap_exit;

	return 0;

err_regmap_exit:
	regmap_exit(ad193x->regmap);
err_free:
	kfree(ad193x);
	return ret;
}

static int __devexit ad193x_i2c_remove(struct i2c_client *client)
{
	struct ad193x_priv *ad193x = i2c_get_clientdata(client);

	snd_soc_unregister_codec(&client->dev);
	regmap_exit(ad193x->regmap);
	kfree(ad193x);
	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 {
30ab1e78	26	struct regmap *regmap;
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;
a1533d94	106
54c96cfd AL	107	if (mute)
	108	snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
	109	AD193X_DAC_MASTER_MUTE,
	110	AD193X_DAC_MASTER_MUTE);
	111	else
	112	snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
	113	AD193X_DAC_MASTER_MUTE, 0);
a1533d94 BS	114
	115	return 0;
	116	}
	117
	118	static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
	119	unsigned int rx_mask, int slots, int width)
	120	{
	121	struct snd_soc_codec *codec = dai->codec;
	122	int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
	123	int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
	124
	125	dac_reg &= ~AD193X_DAC_CHAN_MASK;
	126	adc_reg &= ~AD193X_ADC_CHAN_MASK;
	127
	128	switch (slots) {
	129	case 2:
	130	dac_reg \|= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT;
	131	adc_reg \|= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT;
	132	break;
	133	case 4:
	134	dac_reg \|= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT;
	135	adc_reg \|= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT;
	136	break;
	137	case 8:
	138	dac_reg \|= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT;
	139	adc_reg \|= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT;
	140	break;
	141	case 16:
	142	dac_reg \|= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT;
	143	adc_reg \|= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT;
	144	break;
	145	default:
	146	return -EINVAL;
	147	}
	148
	149	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
	150	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
	151
	152	return 0;
	153	}
	154
	155	static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
	156	unsigned int fmt)
	157	{
	158	struct snd_soc_codec *codec = codec_dai->codec;
d6bdc0f7	159	int adc_reg1, adc_reg2, dac_reg;
a1533d94	160
d6bdc0f7 BS	161	adc_reg1 = snd_soc_read(codec, AD193X_ADC_CTRL1);
d6bdc0f7 BS	162	adc_reg2 = snd_soc_read(codec, AD193X_ADC_CTRL2);
a1533d94 BS	163	dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
	164
	165	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
	166	* with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
	167	*/
	168	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	169	case SND_SOC_DAIFMT_I2S:
d6bdc0f7 BS	170	adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
d6bdc0f7 BS	171	adc_reg1 \|= AD193X_ADC_SERFMT_TDM;
a1533d94 BS	172	break;
a1533d94 BS	173	case SND_SOC_DAIFMT_DSP_A:
d6bdc0f7 BS	174	adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
d6bdc0f7 BS	175	adc_reg1 \|= AD193X_ADC_SERFMT_AUX;
a1533d94 BS	176	break;
	177	default:
	178	return -EINVAL;
	179	}
	180
	181	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	182	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
d6bdc0f7 BS	183	adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	184	adc_reg2 &= ~AD193X_ADC_BCLK_INV;
a1533d94 BS	185	dac_reg &= ~AD193X_DAC_LEFT_HIGH;
	186	dac_reg &= ~AD193X_DAC_BCLK_INV;
	187	break;
	188	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
d6bdc0f7 BS	189	adc_reg2 \|= AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	190	adc_reg2 &= ~AD193X_ADC_BCLK_INV;
a1533d94 BS	191	dac_reg \|= AD193X_DAC_LEFT_HIGH;
	192	dac_reg &= ~AD193X_DAC_BCLK_INV;
	193	break;
	194	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
d6bdc0f7 BS	195	adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	196	adc_reg2 \|= AD193X_ADC_BCLK_INV;
a1533d94 BS	197	dac_reg &= ~AD193X_DAC_LEFT_HIGH;
	198	dac_reg \|= AD193X_DAC_BCLK_INV;
	199	break;
	200
	201	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
d6bdc0f7 BS	202	adc_reg2 \|= AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	203	adc_reg2 \|= AD193X_ADC_BCLK_INV;
a1533d94 BS	204	dac_reg \|= AD193X_DAC_LEFT_HIGH;
	205	dac_reg \|= AD193X_DAC_BCLK_INV;
	206	break;
	207	default:
	208	return -EINVAL;
	209	}
	210
	211	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	212	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
d6bdc0f7 BS	213	adc_reg2 \|= AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	214	adc_reg2 \|= AD193X_ADC_BCLK_MASTER;
a1533d94 BS	215	dac_reg \|= AD193X_DAC_LCR_MASTER;
	216	dac_reg \|= AD193X_DAC_BCLK_MASTER;
	217	break;
	218	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
d6bdc0f7 BS	219	adc_reg2 \|= AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	220	adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
a1533d94 BS	221	dac_reg \|= AD193X_DAC_LCR_MASTER;
	222	dac_reg &= ~AD193X_DAC_BCLK_MASTER;
	223	break;
	224	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
d6bdc0f7 BS	225	adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	226	adc_reg2 \|= AD193X_ADC_BCLK_MASTER;
a1533d94 BS	227	dac_reg &= ~AD193X_DAC_LCR_MASTER;
	228	dac_reg \|= AD193X_DAC_BCLK_MASTER;
	229	break;
	230	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
d6bdc0f7 BS	231	adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	232	adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
a1533d94 BS	233	dac_reg &= ~AD193X_DAC_LCR_MASTER;
	234	dac_reg &= ~AD193X_DAC_BCLK_MASTER;
	235	break;
	236	default:
	237	return -EINVAL;
	238	}
	239
d6bdc0f7 BS	240	snd_soc_write(codec, AD193X_ADC_CTRL1, adc_reg1);
d6bdc0f7 BS	241	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg2);
a1533d94 BS	242	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
	243
	244	return 0;
	245	}
	246
fab90aa4 BS	247	static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	248	int clk_id, unsigned int freq, int dir)
	249	{
	250	struct snd_soc_codec *codec = codec_dai->codec;
	251	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	252	switch (freq) {
	253	case 12288000:
	254	case 18432000:
	255	case 24576000:
	256	case 36864000:
	257	ad193x->sysclk = freq;
	258	return 0;
	259	}
	260	return -EINVAL;
	261	}
	262
a1533d94 BS	263	static int ad193x_hw_params(struct snd_pcm_substream *substream,
	264	struct snd_pcm_hw_params *params,
	265	struct snd_soc_dai *dai)
	266	{
54c96cfd	267	int word_len = 0, master_rate = 0;
a1533d94 BS	268
a1533d94 BS	269	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	270	struct snd_soc_codec *codec = rtd->codec;
fab90aa4	271	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
a1533d94 BS	272
	273	/* bit size */
	274	switch (params_format(params)) {
	275	case SNDRV_PCM_FORMAT_S16_LE:
	276	word_len = 3;
	277	break;
	278	case SNDRV_PCM_FORMAT_S20_3LE:
	279	word_len = 1;
	280	break;
	281	case SNDRV_PCM_FORMAT_S24_LE:
	282	case SNDRV_PCM_FORMAT_S32_LE:
	283	word_len = 0;
	284	break;
	285	}
	286
fab90aa4 BS	287	switch (ad193x->sysclk) {
	288	case 12288000:
	289	master_rate = AD193X_PLL_INPUT_256;
	290	break;
	291	case 18432000:
	292	master_rate = AD193X_PLL_INPUT_384;
	293	break;
	294	case 24576000:
	295	master_rate = AD193X_PLL_INPUT_512;
	296	break;
	297	case 36864000:
	298	master_rate = AD193X_PLL_INPUT_768;
	299	break;
	300	}
	301
54c96cfd AL	302	snd_soc_update_bits(codec, AD193X_PLL_CLK_CTRL0,
54c96cfd AL	303	AD193X_PLL_INPUT_MASK, master_rate);
fab90aa4	304
54c96cfd AL	305	snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
	306	AD193X_DAC_WORD_LEN_MASK,
	307	word_len << AD193X_DAC_WORD_LEN_SHFT);
a1533d94	308
54c96cfd AL	309	snd_soc_update_bits(codec, AD193X_ADC_CTRL1,
54c96cfd AL	310	AD193X_ADC_WORD_LEN_MASK, word_len);
a1533d94 BS	311
	312	return 0;
	313	}
	314
85e7652d	315	static const struct snd_soc_dai_ops ad193x_dai_ops = {
9dd7b79a BS	316	.hw_params = ad193x_hw_params,
	317	.digital_mute = ad193x_mute,
	318	.set_tdm_slot = ad193x_set_tdm_slot,
fab90aa4	319	.set_sysclk = ad193x_set_dai_sysclk,
9dd7b79a BS	320	.set_fmt = ad193x_set_dai_fmt,
	321	};
	322
	323	/* codec DAI instance */
f0fba2ad LG	324	static struct snd_soc_dai_driver ad193x_dai = {
f0fba2ad LG	325	.name = "ad193x-hifi",
9dd7b79a BS	326	.playback = {
	327	.stream_name = "Playback",
	328	.channels_min = 2,
	329	.channels_max = 8,
	330	.rates = SNDRV_PCM_RATE_48000,
	331	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	332	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	333	},
	334	.capture = {
	335	.stream_name = "Capture",
	336	.channels_min = 2,
	337	.channels_max = 4,
	338	.rates = SNDRV_PCM_RATE_48000,
	339	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	340	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	341	},
	342	.ops = &ad193x_dai_ops,
	343	};
9dd7b79a	344
f0fba2ad	345	static int ad193x_probe(struct snd_soc_codec *codec)
a1533d94	346	{
f0fba2ad LG	347	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
f0fba2ad LG	348	int ret;
a1533d94	349
30ab1e78 LPC	350	codec->control_data = ad193x->regmap;
30ab1e78 LPC	351	ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
f0fba2ad	352	if (ret < 0) {
119bfef2	353	dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
f0fba2ad	354	return ret;
a1533d94 BS	355	}
a1533d94 BS	356
f0fba2ad	357	/* default setting for ad193x */
a1533d94	358
f0fba2ad LG	359	/* unmute dac channels */
	360	snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0);
	361	/* de-emphasis: 48kHz, powedown dac */
	362	snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A);
	363	/* powerdown dac, dac in tdm mode */
	364	snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41);
	365	/* high-pass filter enable */
	366	snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3);
	367	/* sata delay=1, adc aux mode */
	368	snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43);
	369	/* pll input: mclki/xi */
	370	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
	371	snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);
a1533d94	372
a1533d94 BS	373	return ret;
	374	}
	375
f0fba2ad	376	static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
a1533d94	377	.probe = ad193x_probe,
b90d4183 LPC	378	.controls = ad193x_snd_controls,
	379	.num_controls = ARRAY_SIZE(ad193x_snd_controls),
	380	.dapm_widgets = ad193x_dapm_widgets,
	381	.num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets),
	382	.dapm_routes = audio_paths,
	383	.num_dapm_routes = ARRAY_SIZE(audio_paths),
a1533d94	384	};
a1533d94 BS	385
a1533d94 BS	386	#if defined(CONFIG_SPI_MASTER)
30ab1e78 LPC	387
	388	static const struct regmap_config ad193x_spi_regmap_config = {
	389	.val_bits = 8,
	390	.reg_bits = 16,
	391	.read_flag_mask = 0x09,
	392	.write_flag_mask = 0x08,
	393	};
	394
a1533d94 BS	395	static int __devinit ad193x_spi_probe(struct spi_device *spi)
a1533d94 BS	396	{
f0fba2ad LG	397	struct ad193x_priv *ad193x;
	398	int ret;
	399
	400	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	401	if (ad193x == NULL)
	402	return -ENOMEM;
	403
30ab1e78 LPC	404	ad193x->regmap = regmap_init_spi(spi, &ad193x_spi_regmap_config);
	405	if (IS_ERR(ad193x->regmap)) {
	406	ret = PTR_ERR(ad193x->regmap);
	407	goto err_free;
	408	}
	409
f0fba2ad	410	spi_set_drvdata(spi, ad193x);
f0fba2ad LG	411
	412	ret = snd_soc_register_codec(&spi->dev,
	413	&soc_codec_dev_ad193x, &ad193x_dai, 1);
	414	if (ret < 0)
30ab1e78 LPC	415	goto err_regmap_exit;
	416
	417	return 0;
	418
	419	err_regmap_exit:
	420	regmap_exit(ad193x->regmap);
	421	err_free:
	422	kfree(ad193x);
	423
f0fba2ad	424	return ret;
a1533d94 BS	425	}
	426
	427	static int __devexit ad193x_spi_remove(struct spi_device *spi)
	428	{
30ab1e78 LPC	429	struct ad193x_priv *ad193x = spi_get_drvdata(spi);
30ab1e78 LPC	430
f0fba2ad	431	snd_soc_unregister_codec(&spi->dev);
30ab1e78 LPC	432	regmap_exit(ad193x->regmap);
30ab1e78 LPC	433	kfree(ad193x);
f0fba2ad	434	return 0;
a1533d94 BS	435	}
	436
	437	static struct spi_driver ad193x_spi_driver = {
	438	.driver = {
e43a7d41	439	.name = "ad193x",
a1533d94 BS	440	.owner = THIS_MODULE,
	441	},
	442	.probe = ad193x_spi_probe,
	443	.remove = __devexit_p(ad193x_spi_remove),
	444	};
	445	#endif
	446
	447	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
30ab1e78 LPC	448
	449	static const struct regmap_config ad193x_i2c_regmap_config = {
	450	.val_bits = 8,
	451	.reg_bits = 8,
	452	};
	453
a1533d94 BS	454	static const struct i2c_device_id ad193x_id[] = {
	455	{ "ad1936", 0 },
	456	{ "ad1937", 0 },
	457	{ }
	458	};
	459	MODULE_DEVICE_TABLE(i2c, ad193x_id);
	460
	461	static int __devinit ad193x_i2c_probe(struct i2c_client *client,
	462	const struct i2c_device_id *id)
	463	{
f0fba2ad LG	464	struct ad193x_priv *ad193x;
	465	int ret;
	466
	467	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	468	if (ad193x == NULL)
	469	return -ENOMEM;
	470
30ab1e78 LPC	471	ad193x->regmap = regmap_init_i2c(client, &ad193x_i2c_regmap_config);
	472	if (IS_ERR(ad193x->regmap)) {
	473	ret = PTR_ERR(ad193x->regmap);
	474	goto err_free;
	475	}
	476
f0fba2ad	477	i2c_set_clientdata(client, ad193x);
f0fba2ad LG	478
	479	ret = snd_soc_register_codec(&client->dev,
	480	&soc_codec_dev_ad193x, &ad193x_dai, 1);
	481	if (ret < 0)
30ab1e78 LPC	482	goto err_regmap_exit;
	483
	484	return 0;
	485
	486	err_regmap_exit:
	487	regmap_exit(ad193x->regmap);
	488	err_free:
	489	kfree(ad193x);
f0fba2ad	490	return ret;
a1533d94 BS	491	}
	492
	493	static int __devexit ad193x_i2c_remove(struct i2c_client *client)
	494	{
30ab1e78 LPC	495	struct ad193x_priv *ad193x = i2c_get_clientdata(client);
30ab1e78 LPC	496
f0fba2ad	497	snd_soc_unregister_codec(&client->dev);
30ab1e78 LPC	498	regmap_exit(ad193x->regmap);
30ab1e78 LPC	499	kfree(ad193x);
f0fba2ad	500	return 0;
a1533d94 BS	501	}
	502
	503	static struct i2c_driver ad193x_i2c_driver = {
	504	.driver = {
e43a7d41	505	.name = "ad193x",
a1533d94 BS	506	},
	507	.probe = ad193x_i2c_probe,
	508	.remove = __devexit_p(ad193x_i2c_remove),
	509	.id_table = ad193x_id,
	510	};
	511	#endif
	512
	513	static int __init ad193x_modinit(void)
	514	{
	515	int ret;
	516
	517	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	518	ret = i2c_add_driver(&ad193x_i2c_driver);
	519	if (ret != 0) {
	520	printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
	521	ret);
	522	}
	523	#endif
	524
	525	#if defined(CONFIG_SPI_MASTER)
	526	ret = spi_register_driver(&ad193x_spi_driver);
	527	if (ret != 0) {
	528	printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
	529	ret);
	530	}
	531	#endif
	532	return ret;
	533	}
	534	module_init(ad193x_modinit);
	535
	536	static void __exit ad193x_modexit(void)
	537	{
	538	#if defined(CONFIG_SPI_MASTER)
	539	spi_unregister_driver(&ad193x_spi_driver);
	540	#endif
	541
	542	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	543	i2c_del_driver(&ad193x_i2c_driver);
	544	#endif
	545	}
	546	module_exit(ad193x_modexit);
	547
	548	MODULE_DESCRIPTION("ASoC ad193x driver");
	549	MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
	550	MODULE_LICENSE("GPL");