[GitHub/mt8127/android_kernel_alcatel_ttab.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 * const 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 DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);

static const struct snd_kcontrol_new ad193x_snd_controls[] = {
	/* DAC volume control */
	SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
			AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),
	SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,
			AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),
	SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,
			AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),
	SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,
			AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),

	/* 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_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, 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, "SYSCLK" },
	{ "ADC", NULL, "SYSCLK" },
	{ "DAC", NULL, "ADC_PWR" },
	{ "ADC", NULL, "ADC_PWR" },
	{ "DAC1OUT", NULL, "DAC" },
	{ "DAC2OUT", NULL, "DAC" },
	{ "DAC3OUT", NULL, "DAC" },
	{ "DAC4OUT", NULL, "DAC" },
	{ "ADC", NULL, "ADC1IN" },
	{ "ADC", NULL, "ADC2IN" },
	{ "SYSCLK", NULL, "PLL_PWR" },
};

/*
 * DAI ops entries
 */

static int ad193x_mute(struct snd_soc_dai *dai, int mute)
{
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec);

	if (mute)
		regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
				    AD193X_DAC_MASTER_MUTE,
				    AD193X_DAC_MASTER_MUTE);
	else
		regmap_update_bits(ad193x->regmap, 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 ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec);
	unsigned int channels;

	switch (slots) {
	case 2:
		channels = AD193X_2_CHANNELS;
		break;
	case 4:
		channels = AD193X_4_CHANNELS;
		break;
	case 8:
		channels = AD193X_8_CHANNELS;
		break;
	case 16:
		channels = AD193X_16_CHANNELS;
		break;
	default:
		return -EINVAL;
	}

	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
		AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);
	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
		AD193X_ADC_CHAN_MASK, channels << AD193X_ADC_CHAN_SHFT);

	return 0;
}

static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec_dai->codec);
	unsigned int adc_serfmt = 0;
	unsigned int adc_fmt = 0;
	unsigned int dac_fmt = 0;

	/* 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_serfmt |= AD193X_ADC_SERFMT_TDM;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		adc_serfmt |= 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 */
		break;
	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
		adc_fmt |= AD193X_ADC_LEFT_HIGH;
		dac_fmt |= AD193X_DAC_LEFT_HIGH;
		break;
	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
		adc_fmt |= AD193X_ADC_BCLK_INV;
		dac_fmt |= AD193X_DAC_BCLK_INV;
		break;
	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
		adc_fmt |= AD193X_ADC_LEFT_HIGH;
		adc_fmt |= AD193X_ADC_BCLK_INV;
		dac_fmt |= AD193X_DAC_LEFT_HIGH;
		dac_fmt |= 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_fmt |= AD193X_ADC_LCR_MASTER;
		adc_fmt |= AD193X_ADC_BCLK_MASTER;
		dac_fmt |= AD193X_DAC_LCR_MASTER;
		dac_fmt |= AD193X_DAC_BCLK_MASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
		adc_fmt |= AD193X_ADC_LCR_MASTER;
		dac_fmt |= AD193X_DAC_LCR_MASTER;
		break;
	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
		adc_fmt |= AD193X_ADC_BCLK_MASTER;
		dac_fmt |= AD193X_DAC_BCLK_MASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
		break;
	default:
		return -EINVAL;
	}

	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
		AD193X_ADC_SERFMT_MASK, adc_serfmt);
	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
		AD193X_ADC_FMT_MASK, adc_fmt);
	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
		AD193X_DAC_FMT_MASK, dac_fmt);

	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_codec *codec = dai->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;
	}

	regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
			    AD193X_PLL_INPUT_MASK, master_rate);

	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
			    AD193X_DAC_WORD_LEN_MASK,
			    word_len << AD193X_DAC_WORD_LEN_SHFT);

	regmap_update_bits(ad193x->regmap, 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 */
	regmap_write(ad193x->regmap, AD193X_DAC_CHNL_MUTE, 0x0);
	/* de-emphasis: 48kHz, powedown dac */
	regmap_write(ad193x->regmap, AD193X_DAC_CTRL2, 0x1A);
	/* powerdown dac, dac in tdm mode */
	regmap_write(ad193x->regmap, AD193X_DAC_CTRL0, 0x41);
	/* high-pass filter enable */
	regmap_write(ad193x->regmap, AD193X_ADC_CTRL0, 0x3);
	/* sata delay=1, adc aux mode */
	regmap_write(ad193x->regmap, AD193X_ADC_CTRL1, 0x43);
	/* pll input: mclki/xi */
	regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
	regmap_write(ad193x->regmap, 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),
};

static bool adau193x_reg_volatile(struct device *dev, unsigned int reg)
{
	return false;
}

#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,

	.max_register = AD193X_NUM_REGS - 1,
	.volatile_reg = adau193x_reg_volatile,
};

static int ad193x_spi_probe(struct spi_device *spi)
{
	struct ad193x_priv *ad193x;

	ad193x = devm_kzalloc(&spi->dev, sizeof(struct ad193x_priv),
			      GFP_KERNEL);
	if (ad193x == NULL)
		return -ENOMEM;

	ad193x->regmap = devm_regmap_init_spi(spi, &ad193x_spi_regmap_config);
	if (IS_ERR(ad193x->regmap))
		return PTR_ERR(ad193x->regmap);

	spi_set_drvdata(spi, ad193x);

	return snd_soc_register_codec(&spi->dev, &soc_codec_dev_ad193x,
			&ad193x_dai, 1);
}

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

static struct spi_driver ad193x_spi_driver = {
	.driver = {
		.name	= "ad193x",
		.owner	= THIS_MODULE,
	},
	.probe		= ad193x_spi_probe,
	.remove		= 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,

	.max_register = AD193X_NUM_REGS - 1,
	.volatile_reg = adau193x_reg_volatile,
};

static const struct i2c_device_id ad193x_id[] = {
	{ "ad1936", 0 },
	{ "ad1937", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ad193x_id);

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

	ad193x = devm_kzalloc(&client->dev, sizeof(struct ad193x_priv),
			      GFP_KERNEL);
	if (ad193x == NULL)
		return -ENOMEM;

	ad193x->regmap = devm_regmap_init_i2c(client, &ad193x_i2c_regmap_config);
	if (IS_ERR(ad193x->regmap))
		return PTR_ERR(ad193x->regmap);

	i2c_set_clientdata(client, ad193x);

	return snd_soc_register_codec(&client->dev, &soc_codec_dev_ad193x,
			&ad193x_dai, 1);
}

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

static struct i2c_driver ad193x_i2c_driver = {
	.driver = {
		.name = "ad193x",
	},
	.probe    = ad193x_i2c_probe,
	.remove   = 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	*/
c4e7a4a2	33	static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
a1533d94 BS	34
	35	static const struct soc_enum ad193x_deemp_enum =
	36	SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);
	37
591c034a LPC	38	static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);
591c034a LPC	39
a1533d94 BS	40	static const struct snd_kcontrol_new ad193x_snd_controls[] = {
a1533d94 BS	41	/* DAC volume control */
591c034a LPC	42	SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
	43	AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),
	44	SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,
	45	AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),
	46	SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,
	47	AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),
	48	SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,
	49	AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),
a1533d94 BS	50
	51	/* ADC switch control */
	52	SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
	53	AD193X_ADCR1_MUTE, 1, 1),
	54	SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
	55	AD193X_ADCR2_MUTE, 1, 1),
	56
	57	/* DAC switch control */
	58	SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
	59	AD193X_DACR1_MUTE, 1, 1),
	60	SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
	61	AD193X_DACR2_MUTE, 1, 1),
	62	SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
	63	AD193X_DACR3_MUTE, 1, 1),
	64	SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
	65	AD193X_DACR4_MUTE, 1, 1),
	66
	67	/* ADC high-pass filter */
	68	SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
	69	AD193X_ADC_HIGHPASS_FILTER, 1, 0),
	70
	71	/* DAC de-emphasis */
	72	SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
	73	};
	74
	75	static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
	76	SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
	77	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
	78	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
	79	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
0718fd27	80	SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0),
a1533d94 BS	81	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
	82	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
	83	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
	84	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
	85	SND_SOC_DAPM_INPUT("ADC1IN"),
	86	SND_SOC_DAPM_INPUT("ADC2IN"),
	87	};
	88
	89	static const struct snd_soc_dapm_route audio_paths[] = {
0718fd27 LPC	90	{ "DAC", NULL, "SYSCLK" },
0718fd27 LPC	91	{ "ADC", NULL, "SYSCLK" },
a1533d94 BS	92	{ "DAC", NULL, "ADC_PWR" },
a1533d94 BS	93	{ "ADC", NULL, "ADC_PWR" },
b21990b4 LPC	94	{ "DAC1OUT", NULL, "DAC" },
	95	{ "DAC2OUT", NULL, "DAC" },
	96	{ "DAC3OUT", NULL, "DAC" },
	97	{ "DAC4OUT", NULL, "DAC" },
	98	{ "ADC", NULL, "ADC1IN" },
	99	{ "ADC", NULL, "ADC2IN" },
0718fd27	100	{ "SYSCLK", NULL, "PLL_PWR" },
a1533d94 BS	101	};
	102
	103	/*
	104	* DAI ops entries
	105	*/
	106
	107	static int ad193x_mute(struct snd_soc_dai *dai, int mute)
	108	{
34cbe168	109	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec);
a1533d94	110
54c96cfd	111	if (mute)
34cbe168	112	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
54c96cfd AL	113	AD193X_DAC_MASTER_MUTE,
	114	AD193X_DAC_MASTER_MUTE);
	115	else
34cbe168	116	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
54c96cfd	117	AD193X_DAC_MASTER_MUTE, 0);
a1533d94 BS	118
	119	return 0;
	120	}
	121
	122	static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
	123	unsigned int rx_mask, int slots, int width)
	124	{
34cbe168	125	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec);
b82ca578	126	unsigned int channels;
a1533d94 BS	127
	128	switch (slots) {
	129	case 2:
b82ca578	130	channels = AD193X_2_CHANNELS;
a1533d94 BS	131	break;
a1533d94 BS	132	case 4:
b82ca578	133	channels = AD193X_4_CHANNELS;
a1533d94 BS	134	break;
a1533d94 BS	135	case 8:
b82ca578	136	channels = AD193X_8_CHANNELS;
a1533d94 BS	137	break;
a1533d94 BS	138	case 16:
b82ca578	139	channels = AD193X_16_CHANNELS;
a1533d94 BS	140	break;
	141	default:
	142	return -EINVAL;
	143	}
	144
34cbe168 LPC	145	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
	146	AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);
	147	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
	148	AD193X_ADC_CHAN_MASK, channels << AD193X_ADC_CHAN_SHFT);
a1533d94 BS	149
	150	return 0;
	151	}
	152
	153	static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
	154	unsigned int fmt)
	155	{
34cbe168	156	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec_dai->codec);
b82ca578 LPC	157	unsigned int adc_serfmt = 0;
	158	unsigned int adc_fmt = 0;
	159	unsigned int dac_fmt = 0;
a1533d94 BS	160
	161	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
	162	* with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
	163	*/
	164	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	165	case SND_SOC_DAIFMT_I2S:
b82ca578	166	adc_serfmt \|= AD193X_ADC_SERFMT_TDM;
a1533d94 BS	167	break;
a1533d94 BS	168	case SND_SOC_DAIFMT_DSP_A:
b82ca578	169	adc_serfmt \|= AD193X_ADC_SERFMT_AUX;
a1533d94 BS	170	break;
	171	default:
	172	return -EINVAL;
	173	}
	174
	175	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	176	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
a1533d94 BS	177	break;
a1533d94 BS	178	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
b82ca578 LPC	179	adc_fmt \|= AD193X_ADC_LEFT_HIGH;
b82ca578 LPC	180	dac_fmt \|= AD193X_DAC_LEFT_HIGH;
a1533d94 BS	181	break;
a1533d94 BS	182	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
b82ca578 LPC	183	adc_fmt \|= AD193X_ADC_BCLK_INV;
b82ca578 LPC	184	dac_fmt \|= AD193X_DAC_BCLK_INV;
a1533d94	185	break;
a1533d94	186	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
b82ca578 LPC	187	adc_fmt \|= AD193X_ADC_LEFT_HIGH;
	188	adc_fmt \|= AD193X_ADC_BCLK_INV;
	189	dac_fmt \|= AD193X_DAC_LEFT_HIGH;
	190	dac_fmt \|= AD193X_DAC_BCLK_INV;
a1533d94 BS	191	break;
	192	default:
	193	return -EINVAL;
	194	}
	195
	196	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	197	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
b82ca578 LPC	198	adc_fmt \|= AD193X_ADC_LCR_MASTER;
	199	adc_fmt \|= AD193X_ADC_BCLK_MASTER;
	200	dac_fmt \|= AD193X_DAC_LCR_MASTER;
	201	dac_fmt \|= AD193X_DAC_BCLK_MASTER;
a1533d94 BS	202	break;
a1533d94 BS	203	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
b82ca578 LPC	204	adc_fmt \|= AD193X_ADC_LCR_MASTER;
b82ca578 LPC	205	dac_fmt \|= AD193X_DAC_LCR_MASTER;
a1533d94 BS	206	break;
a1533d94 BS	207	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
b82ca578 LPC	208	adc_fmt \|= AD193X_ADC_BCLK_MASTER;
b82ca578 LPC	209	dac_fmt \|= AD193X_DAC_BCLK_MASTER;
a1533d94 BS	210	break;
a1533d94 BS	211	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
a1533d94 BS	212	break;
	213	default:
	214	return -EINVAL;
	215	}
	216
34cbe168 LPC	217	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
	218	AD193X_ADC_SERFMT_MASK, adc_serfmt);
	219	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
	220	AD193X_ADC_FMT_MASK, adc_fmt);
	221	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
	222	AD193X_DAC_FMT_MASK, dac_fmt);
a1533d94 BS	223
	224	return 0;
	225	}
	226
fab90aa4 BS	227	static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	228	int clk_id, unsigned int freq, int dir)
	229	{
	230	struct snd_soc_codec *codec = codec_dai->codec;
	231	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	232	switch (freq) {
	233	case 12288000:
	234	case 18432000:
	235	case 24576000:
	236	case 36864000:
	237	ad193x->sysclk = freq;
	238	return 0;
	239	}
	240	return -EINVAL;
	241	}
	242
a1533d94 BS	243	static int ad193x_hw_params(struct snd_pcm_substream *substream,
	244	struct snd_pcm_hw_params *params,
	245	struct snd_soc_dai *dai)
	246	{
54c96cfd	247	int word_len = 0, master_rate = 0;
e6968a17	248	struct snd_soc_codec *codec = dai->codec;
fab90aa4	249	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
a1533d94 BS	250
	251	/* bit size */
	252	switch (params_format(params)) {
	253	case SNDRV_PCM_FORMAT_S16_LE:
	254	word_len = 3;
	255	break;
	256	case SNDRV_PCM_FORMAT_S20_3LE:
	257	word_len = 1;
	258	break;
	259	case SNDRV_PCM_FORMAT_S24_LE:
	260	case SNDRV_PCM_FORMAT_S32_LE:
	261	word_len = 0;
	262	break;
	263	}
	264
fab90aa4 BS	265	switch (ad193x->sysclk) {
	266	case 12288000:
	267	master_rate = AD193X_PLL_INPUT_256;
	268	break;
	269	case 18432000:
	270	master_rate = AD193X_PLL_INPUT_384;
	271	break;
	272	case 24576000:
	273	master_rate = AD193X_PLL_INPUT_512;
	274	break;
	275	case 36864000:
	276	master_rate = AD193X_PLL_INPUT_768;
	277	break;
	278	}
	279
34cbe168	280	regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
54c96cfd	281	AD193X_PLL_INPUT_MASK, master_rate);
fab90aa4	282
34cbe168	283	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
54c96cfd AL	284	AD193X_DAC_WORD_LEN_MASK,
54c96cfd AL	285	word_len << AD193X_DAC_WORD_LEN_SHFT);
a1533d94	286
34cbe168	287	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
54c96cfd	288	AD193X_ADC_WORD_LEN_MASK, word_len);
a1533d94 BS	289
	290	return 0;
	291	}
	292
85e7652d	293	static const struct snd_soc_dai_ops ad193x_dai_ops = {
9dd7b79a BS	294	.hw_params = ad193x_hw_params,
	295	.digital_mute = ad193x_mute,
	296	.set_tdm_slot = ad193x_set_tdm_slot,
fab90aa4	297	.set_sysclk = ad193x_set_dai_sysclk,
9dd7b79a BS	298	.set_fmt = ad193x_set_dai_fmt,
	299	};
	300
	301	/* codec DAI instance */
f0fba2ad LG	302	static struct snd_soc_dai_driver ad193x_dai = {
f0fba2ad LG	303	.name = "ad193x-hifi",
9dd7b79a BS	304	.playback = {
	305	.stream_name = "Playback",
	306	.channels_min = 2,
	307	.channels_max = 8,
	308	.rates = SNDRV_PCM_RATE_48000,
	309	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	310	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	311	},
	312	.capture = {
	313	.stream_name = "Capture",
	314	.channels_min = 2,
	315	.channels_max = 4,
	316	.rates = SNDRV_PCM_RATE_48000,
	317	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	318	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	319	},
	320	.ops = &ad193x_dai_ops,
	321	};
9dd7b79a	322
f0fba2ad	323	static int ad193x_probe(struct snd_soc_codec *codec)
a1533d94	324	{
f0fba2ad LG	325	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
f0fba2ad LG	326	int ret;
a1533d94	327
30ab1e78 LPC	328	codec->control_data = ad193x->regmap;
30ab1e78 LPC	329	ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
f0fba2ad	330	if (ret < 0) {
119bfef2	331	dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
f0fba2ad	332	return ret;
a1533d94 BS	333	}
a1533d94 BS	334
f0fba2ad	335	/* default setting for ad193x */
a1533d94	336
f0fba2ad	337	/* unmute dac channels */
34cbe168	338	regmap_write(ad193x->regmap, AD193X_DAC_CHNL_MUTE, 0x0);
f0fba2ad	339	/* de-emphasis: 48kHz, powedown dac */
34cbe168	340	regmap_write(ad193x->regmap, AD193X_DAC_CTRL2, 0x1A);
f0fba2ad	341	/* powerdown dac, dac in tdm mode */
34cbe168	342	regmap_write(ad193x->regmap, AD193X_DAC_CTRL0, 0x41);
f0fba2ad	343	/* high-pass filter enable */
34cbe168	344	regmap_write(ad193x->regmap, AD193X_ADC_CTRL0, 0x3);
f0fba2ad	345	/* sata delay=1, adc aux mode */
34cbe168	346	regmap_write(ad193x->regmap, AD193X_ADC_CTRL1, 0x43);
f0fba2ad	347	/* pll input: mclki/xi */
34cbe168 LPC	348	regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
34cbe168 LPC	349	regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL1, 0x04);
a1533d94	350
a1533d94 BS	351	return ret;
	352	}
	353
f0fba2ad	354	static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
a1533d94	355	.probe = ad193x_probe,
b90d4183 LPC	356	.controls = ad193x_snd_controls,
	357	.num_controls = ARRAY_SIZE(ad193x_snd_controls),
	358	.dapm_widgets = ad193x_dapm_widgets,
	359	.num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets),
	360	.dapm_routes = audio_paths,
	361	.num_dapm_routes = ARRAY_SIZE(audio_paths),
a1533d94	362	};
a1533d94	363
34cbe168 LPC	364	static bool adau193x_reg_volatile(struct device *dev, unsigned int reg)
	365	{
	366	return false;
	367	}
	368
a1533d94	369	#if defined(CONFIG_SPI_MASTER)
30ab1e78 LPC	370
	371	static const struct regmap_config ad193x_spi_regmap_config = {
	372	.val_bits = 8,
	373	.reg_bits = 16,
	374	.read_flag_mask = 0x09,
	375	.write_flag_mask = 0x08,
34cbe168 LPC	376
	377	.max_register = AD193X_NUM_REGS - 1,
	378	.volatile_reg = adau193x_reg_volatile,
30ab1e78 LPC	379	};
30ab1e78 LPC	380
7a79e94e	381	static int ad193x_spi_probe(struct spi_device *spi)
a1533d94	382	{
f0fba2ad	383	struct ad193x_priv *ad193x;
f0fba2ad	384
30c88f2c AL	385	ad193x = devm_kzalloc(&spi->dev, sizeof(struct ad193x_priv),
30c88f2c AL	386	GFP_KERNEL);
f0fba2ad LG	387	if (ad193x == NULL)
	388	return -ENOMEM;
	389
040242cc LPC	390	ad193x->regmap = devm_regmap_init_spi(spi, &ad193x_spi_regmap_config);
	391	if (IS_ERR(ad193x->regmap))
	392	return PTR_ERR(ad193x->regmap);
30ab1e78	393
f0fba2ad	394	spi_set_drvdata(spi, ad193x);
f0fba2ad	395
040242cc LPC	396	return snd_soc_register_codec(&spi->dev, &soc_codec_dev_ad193x,
040242cc LPC	397	&ad193x_dai, 1);
a1533d94 BS	398	}
a1533d94 BS	399
7a79e94e	400	static int ad193x_spi_remove(struct spi_device *spi)
a1533d94	401	{
f0fba2ad	402	snd_soc_unregister_codec(&spi->dev);
f0fba2ad	403	return 0;
a1533d94 BS	404	}
	405
	406	static struct spi_driver ad193x_spi_driver = {
	407	.driver = {
e43a7d41	408	.name = "ad193x",
a1533d94 BS	409	.owner = THIS_MODULE,
	410	},
	411	.probe = ad193x_spi_probe,
7a79e94e	412	.remove = ad193x_spi_remove,
a1533d94 BS	413	};
	414	#endif
	415
	416	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
30ab1e78 LPC	417
	418	static const struct regmap_config ad193x_i2c_regmap_config = {
	419	.val_bits = 8,
	420	.reg_bits = 8,
34cbe168 LPC	421
	422	.max_register = AD193X_NUM_REGS - 1,
	423	.volatile_reg = adau193x_reg_volatile,
30ab1e78 LPC	424	};
30ab1e78 LPC	425
a1533d94 BS	426	static const struct i2c_device_id ad193x_id[] = {
	427	{ "ad1936", 0 },
	428	{ "ad1937", 0 },
	429	{ }
	430	};
	431	MODULE_DEVICE_TABLE(i2c, ad193x_id);
	432
7a79e94e BP	433	static int ad193x_i2c_probe(struct i2c_client *client,
7a79e94e BP	434	const struct i2c_device_id *id)
a1533d94	435	{
f0fba2ad	436	struct ad193x_priv *ad193x;
f0fba2ad	437
30c88f2c AL	438	ad193x = devm_kzalloc(&client->dev, sizeof(struct ad193x_priv),
30c88f2c AL	439	GFP_KERNEL);
f0fba2ad LG	440	if (ad193x == NULL)
	441	return -ENOMEM;
	442
040242cc LPC	443	ad193x->regmap = devm_regmap_init_i2c(client, &ad193x_i2c_regmap_config);
	444	if (IS_ERR(ad193x->regmap))
	445	return PTR_ERR(ad193x->regmap);
30ab1e78	446
f0fba2ad	447	i2c_set_clientdata(client, ad193x);
f0fba2ad	448
040242cc LPC	449	return snd_soc_register_codec(&client->dev, &soc_codec_dev_ad193x,
040242cc LPC	450	&ad193x_dai, 1);
a1533d94 BS	451	}
a1533d94 BS	452
7a79e94e	453	static int ad193x_i2c_remove(struct i2c_client *client)
a1533d94	454	{
f0fba2ad	455	snd_soc_unregister_codec(&client->dev);
f0fba2ad	456	return 0;
a1533d94 BS	457	}
	458
	459	static struct i2c_driver ad193x_i2c_driver = {
	460	.driver = {
e43a7d41	461	.name = "ad193x",
a1533d94 BS	462	},
a1533d94 BS	463	.probe = ad193x_i2c_probe,
7a79e94e	464	.remove = ad193x_i2c_remove,
a1533d94 BS	465	.id_table = ad193x_id,
	466	};
	467	#endif
	468
	469	static int __init ad193x_modinit(void)
	470	{
	471	int ret;
	472
	473	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	474	ret = i2c_add_driver(&ad193x_i2c_driver);
	475	if (ret != 0) {
	476	printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
	477	ret);
	478	}
	479	#endif
	480
	481	#if defined(CONFIG_SPI_MASTER)
	482	ret = spi_register_driver(&ad193x_spi_driver);
	483	if (ret != 0) {
	484	printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
	485	ret);
	486	}
	487	#endif
	488	return ret;
	489	}
	490	module_init(ad193x_modinit);
	491
	492	static void __exit ad193x_modexit(void)
	493	{
	494	#if defined(CONFIG_SPI_MASTER)
	495	spi_unregister_driver(&ad193x_spi_driver);
	496	#endif
	497
	498	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	499	i2c_del_driver(&ad193x_i2c_driver);
	500	#endif
	501	}
	502	module_exit(ad193x_modexit);
	503
	504	MODULE_DESCRIPTION("ASoC ad193x driver");
	505	MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
	506	MODULE_LICENSE("GPL");