[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 bus_type;
	void *control_data;
	int sysclk;
};

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

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

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

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

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

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

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

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

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

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

/*
 * DAI ops entries
 */

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

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

	return 0;
}

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

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

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

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

	return 0;
}

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

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

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

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

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

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

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

	return 0;
}

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

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

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

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

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

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

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

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

	return 0;
}

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

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

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

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

	/* default setting for ad193x */

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

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

	return ret;
}

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

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

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

	spi_set_drvdata(spi, ad193x);
	ad193x->control_data = spi;
	ad193x->bus_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-codec",
		.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_data = client;
	ad193x->bus_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-codec",
	},
	.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 {
f0fba2ad LG	26	enum snd_soc_control_type bus_type;
	27	void *control_data;
	28	int sysclk;
a1533d94 BS	29	};
	30
	31	/* ad193x register cache & default register settings */
	32	static const u8 ad193x_reg[AD193X_NUM_REGS] = {
	33	0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0,
	34	};
	35
a1533d94 BS	36	/*
	37	* AD193X volume/mute/de-emphasis etc. controls
	38	*/
	39	static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
	40
	41	static const struct soc_enum ad193x_deemp_enum =
	42	SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);
	43
	44	static const struct snd_kcontrol_new ad193x_snd_controls[] = {
	45	/* DAC volume control */
ba0a24e7	46	SOC_DOUBLE_R("DAC1 Volume", AD193X_DAC_L1_VOL,
a1533d94	47	AD193X_DAC_R1_VOL, 0, 0xFF, 1),
ba0a24e7	48	SOC_DOUBLE_R("DAC2 Volume", AD193X_DAC_L2_VOL,
a1533d94	49	AD193X_DAC_R2_VOL, 0, 0xFF, 1),
ba0a24e7	50	SOC_DOUBLE_R("DAC3 Volume", AD193X_DAC_L3_VOL,
a1533d94	51	AD193X_DAC_R3_VOL, 0, 0xFF, 1),
ba0a24e7	52	SOC_DOUBLE_R("DAC4 Volume", AD193X_DAC_L4_VOL,
a1533d94 BS	53	AD193X_DAC_R4_VOL, 0, 0xFF, 1),
	54
	55	/* ADC switch control */
	56	SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
	57	AD193X_ADCR1_MUTE, 1, 1),
	58	SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
	59	AD193X_ADCR2_MUTE, 1, 1),
	60
	61	/* DAC switch control */
	62	SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
	63	AD193X_DACR1_MUTE, 1, 1),
	64	SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
	65	AD193X_DACR2_MUTE, 1, 1),
	66	SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
	67	AD193X_DACR3_MUTE, 1, 1),
	68	SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
	69	AD193X_DACR4_MUTE, 1, 1),
	70
	71	/* ADC high-pass filter */
	72	SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
	73	AD193X_ADC_HIGHPASS_FILTER, 1, 0),
	74
	75	/* DAC de-emphasis */
	76	SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
	77	};
	78
	79	static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
	80	SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
	81	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
	82	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
	83	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
	84	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
	85	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
	86	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
	87	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
	88	SND_SOC_DAPM_INPUT("ADC1IN"),
	89	SND_SOC_DAPM_INPUT("ADC2IN"),
	90	};
	91
	92	static const struct snd_soc_dapm_route audio_paths[] = {
	93	{ "DAC", NULL, "PLL_PWR" },
	94	{ "ADC", NULL, "PLL_PWR" },
	95	{ "DAC", NULL, "ADC_PWR" },
	96	{ "ADC", NULL, "ADC_PWR" },
	97	{ "DAC1OUT", "DAC1 Switch", "DAC" },
	98	{ "DAC2OUT", "DAC2 Switch", "DAC" },
	99	{ "DAC3OUT", "DAC3 Switch", "DAC" },
	100	{ "DAC4OUT", "DAC4 Switch", "DAC" },
	101	{ "ADC", "ADC1 Switch", "ADC1IN" },
	102	{ "ADC", "ADC2 Switch", "ADC2IN" },
	103	};
	104
	105	/*
	106	* DAI ops entries
	107	*/
	108
	109	static int ad193x_mute(struct snd_soc_dai *dai, int mute)
	110	{
	111	struct snd_soc_codec *codec = dai->codec;
	112	int reg;
	113
	114	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
	115	reg = (mute > 0) ? reg \| AD193X_DAC_MASTER_MUTE : reg &
	116	(~AD193X_DAC_MASTER_MUTE);
117	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
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	{
125	struct snd_soc_codec *codec = dai->codec;
126	int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
127	int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
128
129	dac_reg &= ~AD193X_DAC_CHAN_MASK;
130	adc_reg &= ~AD193X_ADC_CHAN_MASK;
131
132	switch (slots) {
133	case 2:
134	dac_reg \|= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT;
135	adc_reg \|= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT;
136	break;
137	case 4:
138	dac_reg \|= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT;
139	adc_reg \|= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT;
140	break;
141	case 8:
142	dac_reg \|= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT;
143	adc_reg \|= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT;
144	break;
145	case 16:
146	dac_reg \|= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT;
147	adc_reg \|= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT;
148	break;
149	default:
150	return -EINVAL;
151	}
152
153	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
154	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
155
156	return 0;
157	}
158
159	static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
160	unsigned int fmt)
161	{
162	struct snd_soc_codec *codec = codec_dai->codec;
d6bdc0f7	163	int adc_reg1, adc_reg2, dac_reg;
a1533d94	164
d6bdc0f7 BS	165	adc_reg1 = snd_soc_read(codec, AD193X_ADC_CTRL1);
d6bdc0f7 BS	166	adc_reg2 = snd_soc_read(codec, AD193X_ADC_CTRL2);
a1533d94 BS	167	dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
	168
	169	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
	170	* with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
	171	*/
	172	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	173	case SND_SOC_DAIFMT_I2S:
d6bdc0f7 BS	174	adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
d6bdc0f7 BS	175	adc_reg1 \|= AD193X_ADC_SERFMT_TDM;
a1533d94 BS	176	break;
a1533d94 BS	177	case SND_SOC_DAIFMT_DSP_A:
d6bdc0f7 BS	178	adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
d6bdc0f7 BS	179	adc_reg1 \|= AD193X_ADC_SERFMT_AUX;
a1533d94 BS	180	break;
	181	default:
	182	return -EINVAL;
	183	}
	184
	185	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	186	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
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_NB_IF: /* normal bclk + invert 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	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
d6bdc0f7 BS	199	adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	200	adc_reg2 \|= AD193X_ADC_BCLK_INV;
a1533d94 BS	201	dac_reg &= ~AD193X_DAC_LEFT_HIGH;
	202	dac_reg \|= AD193X_DAC_BCLK_INV;
	203	break;
	204
	205	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
d6bdc0f7 BS	206	adc_reg2 \|= AD193X_ADC_LEFT_HIGH;
d6bdc0f7 BS	207	adc_reg2 \|= AD193X_ADC_BCLK_INV;
a1533d94 BS	208	dac_reg \|= AD193X_DAC_LEFT_HIGH;
	209	dac_reg \|= AD193X_DAC_BCLK_INV;
	210	break;
	211	default:
	212	return -EINVAL;
	213	}
	214
	215	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	216	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & 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_CBS_CFM: /* codec clk slave & frm master */
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_CBM_CFS: /* codec clk master & frame 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	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
d6bdc0f7 BS	235	adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
d6bdc0f7 BS	236	adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
a1533d94 BS	237	dac_reg &= ~AD193X_DAC_LCR_MASTER;
	238	dac_reg &= ~AD193X_DAC_BCLK_MASTER;
	239	break;
	240	default:
	241	return -EINVAL;
	242	}
	243
d6bdc0f7 BS	244	snd_soc_write(codec, AD193X_ADC_CTRL1, adc_reg1);
d6bdc0f7 BS	245	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg2);
a1533d94 BS	246	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
	247
	248	return 0;
	249	}
	250
fab90aa4 BS	251	static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	252	int clk_id, unsigned int freq, int dir)
	253	{
	254	struct snd_soc_codec *codec = codec_dai->codec;
	255	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	256	switch (freq) {
	257	case 12288000:
	258	case 18432000:
	259	case 24576000:
	260	case 36864000:
	261	ad193x->sysclk = freq;
	262	return 0;
	263	}
	264	return -EINVAL;
	265	}
	266
a1533d94 BS	267	static int ad193x_hw_params(struct snd_pcm_substream *substream,
	268	struct snd_pcm_hw_params *params,
	269	struct snd_soc_dai *dai)
	270	{
fab90aa4	271	int word_len = 0, reg = 0, master_rate = 0;
a1533d94 BS	272
a1533d94 BS	273	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	274	struct snd_soc_codec *codec = rtd->codec;
fab90aa4	275	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
a1533d94 BS	276
	277	/* bit size */
	278	switch (params_format(params)) {
	279	case SNDRV_PCM_FORMAT_S16_LE:
	280	word_len = 3;
	281	break;
	282	case SNDRV_PCM_FORMAT_S20_3LE:
	283	word_len = 1;
	284	break;
	285	case SNDRV_PCM_FORMAT_S24_LE:
	286	case SNDRV_PCM_FORMAT_S32_LE:
	287	word_len = 0;
	288	break;
	289	}
	290
fab90aa4 BS	291	switch (ad193x->sysclk) {
	292	case 12288000:
	293	master_rate = AD193X_PLL_INPUT_256;
	294	break;
	295	case 18432000:
	296	master_rate = AD193X_PLL_INPUT_384;
	297	break;
	298	case 24576000:
	299	master_rate = AD193X_PLL_INPUT_512;
	300	break;
	301	case 36864000:
	302	master_rate = AD193X_PLL_INPUT_768;
	303	break;
	304	}
	305
	306	reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
	307	reg = (reg & AD193X_PLL_INPUT_MASK) \| master_rate;
	308	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
	309
a1533d94 BS	310	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
	311	reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) \| word_len;
	312	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
	313
	314	reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
	315	reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) \| word_len;
	316	snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
	317
	318	return 0;
	319	}
	320
9dd7b79a BS	321	static struct snd_soc_dai_ops ad193x_dai_ops = {
	322	.hw_params = ad193x_hw_params,
	323	.digital_mute = ad193x_mute,
	324	.set_tdm_slot = ad193x_set_tdm_slot,
fab90aa4	325	.set_sysclk = ad193x_set_dai_sysclk,
9dd7b79a BS	326	.set_fmt = ad193x_set_dai_fmt,
	327	};
	328
	329	/* codec DAI instance */
f0fba2ad LG	330	static struct snd_soc_dai_driver ad193x_dai = {
f0fba2ad LG	331	.name = "ad193x-hifi",
9dd7b79a BS	332	.playback = {
	333	.stream_name = "Playback",
	334	.channels_min = 2,
	335	.channels_max = 8,
	336	.rates = SNDRV_PCM_RATE_48000,
	337	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	338	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	339	},
	340	.capture = {
	341	.stream_name = "Capture",
	342	.channels_min = 2,
	343	.channels_max = 4,
	344	.rates = SNDRV_PCM_RATE_48000,
	345	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	346	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	347	},
	348	.ops = &ad193x_dai_ops,
	349	};
9dd7b79a	350
f0fba2ad	351	static int ad193x_probe(struct snd_soc_codec *codec)
a1533d94	352	{
f0fba2ad	353	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
ce6120cc	354	struct snd_soc_dapm_context *dapm = &codec->dapm;
f0fba2ad	355	int ret;
a1533d94	356
f0fba2ad LG	357	codec->control_data = ad193x->control_data;
	358	if (ad193x->bus_type == SND_SOC_I2C)
	359	ret = snd_soc_codec_set_cache_io(codec, 8, 8, ad193x->bus_type);
	360	else
	361	ret = snd_soc_codec_set_cache_io(codec, 16, 8, ad193x->bus_type);
	362	if (ret < 0) {
	363	dev_err(codec->dev, "failed to set cache I/O: %d\n",
	364	ret);
f0fba2ad	365	return ret;
a1533d94 BS	366	}
a1533d94 BS	367
f0fba2ad	368	/* default setting for ad193x */
a1533d94	369
f0fba2ad LG	370	/* unmute dac channels */
	371	snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0);
	372	/* de-emphasis: 48kHz, powedown dac */
	373	snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A);
	374	/* powerdown dac, dac in tdm mode */
	375	snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41);
	376	/* high-pass filter enable */
	377	snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3);
	378	/* sata delay=1, adc aux mode */
	379	snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43);
	380	/* pll input: mclki/xi */
	381	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
	382	snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);
a1533d94 BS	383
	384	snd_soc_add_controls(codec, ad193x_snd_controls,
	385	ARRAY_SIZE(ad193x_snd_controls));
ce6120cc	386	snd_soc_dapm_new_controls(dapm, ad193x_dapm_widgets,
a1533d94	387	ARRAY_SIZE(ad193x_dapm_widgets));
ce6120cc	388	snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
a1533d94	389
a1533d94 BS	390	return ret;
	391	}
	392
f0fba2ad	393	static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
a1533d94	394	.probe = ad193x_probe,
f0fba2ad LG	395	.reg_cache_default = ad193x_reg,
	396	.reg_cache_size = AD193X_NUM_REGS,
	397	.reg_word_size = sizeof(u16),
a1533d94	398	};
a1533d94 BS	399
	400	#if defined(CONFIG_SPI_MASTER)
	401	static int __devinit ad193x_spi_probe(struct spi_device *spi)
	402	{
f0fba2ad LG	403	struct ad193x_priv *ad193x;
	404	int ret;
	405
	406	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	407	if (ad193x == NULL)
	408	return -ENOMEM;
	409
	410	spi_set_drvdata(spi, ad193x);
	411	ad193x->control_data = spi;
	412	ad193x->bus_type = SND_SOC_SPI;
	413
	414	ret = snd_soc_register_codec(&spi->dev,
	415	&soc_codec_dev_ad193x, &ad193x_dai, 1);
	416	if (ret < 0)
	417	kfree(ad193x);
	418	return ret;
a1533d94 BS	419	}
	420
	421	static int __devexit ad193x_spi_remove(struct spi_device *spi)
	422	{
f0fba2ad LG	423	snd_soc_unregister_codec(&spi->dev);
	424	kfree(spi_get_drvdata(spi));
	425	return 0;
a1533d94 BS	426	}
	427
	428	static struct spi_driver ad193x_spi_driver = {
	429	.driver = {
f0fba2ad	430	.name = "ad193x-codec",
a1533d94 BS	431	.owner = THIS_MODULE,
	432	},
	433	.probe = ad193x_spi_probe,
	434	.remove = __devexit_p(ad193x_spi_remove),
	435	};
	436	#endif
	437
	438	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	439	static const struct i2c_device_id ad193x_id[] = {
	440	{ "ad1936", 0 },
	441	{ "ad1937", 0 },
	442	{ }
	443	};
	444	MODULE_DEVICE_TABLE(i2c, ad193x_id);
	445
	446	static int __devinit ad193x_i2c_probe(struct i2c_client *client,
	447	const struct i2c_device_id *id)
	448	{
f0fba2ad LG	449	struct ad193x_priv *ad193x;
	450	int ret;
	451
	452	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
	453	if (ad193x == NULL)
	454	return -ENOMEM;
	455
	456	i2c_set_clientdata(client, ad193x);
	457	ad193x->control_data = client;
	458	ad193x->bus_type = SND_SOC_I2C;
	459
	460	ret = snd_soc_register_codec(&client->dev,
	461	&soc_codec_dev_ad193x, &ad193x_dai, 1);
	462	if (ret < 0)
	463	kfree(ad193x);
	464	return ret;
a1533d94 BS	465	}
	466
	467	static int __devexit ad193x_i2c_remove(struct i2c_client *client)
	468	{
f0fba2ad LG	469	snd_soc_unregister_codec(&client->dev);
	470	kfree(i2c_get_clientdata(client));
	471	return 0;
a1533d94 BS	472	}
	473
	474	static struct i2c_driver ad193x_i2c_driver = {
	475	.driver = {
f0fba2ad	476	.name = "ad193x-codec",
a1533d94 BS	477	},
	478	.probe = ad193x_i2c_probe,
	479	.remove = __devexit_p(ad193x_i2c_remove),
	480	.id_table = ad193x_id,
	481	};
	482	#endif
	483
	484	static int __init ad193x_modinit(void)
	485	{
	486	int ret;
	487
	488	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	489	ret = i2c_add_driver(&ad193x_i2c_driver);
	490	if (ret != 0) {
	491	printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
	492	ret);
	493	}
	494	#endif
	495
	496	#if defined(CONFIG_SPI_MASTER)
	497	ret = spi_register_driver(&ad193x_spi_driver);
	498	if (ret != 0) {
	499	printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
	500	ret);
	501	}
	502	#endif
	503	return ret;
	504	}
	505	module_init(ad193x_modinit);
	506
	507	static void __exit ad193x_modexit(void)
	508	{
	509	#if defined(CONFIG_SPI_MASTER)
	510	spi_unregister_driver(&ad193x_spi_driver);
	511	#endif
	512
	513	#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
	514	i2c_del_driver(&ad193x_i2c_driver);
	515	#endif
	516	}
	517	module_exit(ad193x_modexit);
	518
	519	MODULE_DESCRIPTION("ASoC ad193x driver");
	520	MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
	521	MODULE_LICENSE("GPL");