[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/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/regmap.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_width(params)) {
	case 16:
		word_len = 3;
		break;
	case 20:
		word_len = 1;
		break;
	case 24:
	case 32:
		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_codec_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_codec_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;
}

const struct regmap_config ad193x_regmap_config = {
	.max_register = AD193X_NUM_REGS - 1,
	.volatile_reg = adau193x_reg_volatile,
};
EXPORT_SYMBOL_GPL(ad193x_regmap_config);

int ad193x_probe(struct device *dev, struct regmap *regmap)
{
	struct ad193x_priv *ad193x;

	if (IS_ERR(regmap))
		return PTR_ERR(regmap);

	ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL);
	if (ad193x == NULL)
		return -ENOMEM;

	ad193x->regmap = regmap;

	dev_set_drvdata(dev, ad193x);

	return snd_soc_register_codec(dev, &soc_codec_dev_ad193x,
		&ad193x_dai, 1);
}
EXPORT_SYMBOL_GPL(ad193x_probe);

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
a1533d94 BS	9	#include <linux/module.h>
	10	#include <linux/kernel.h>
	11	#include <linux/device.h>
6c3d713e	12	#include <linux/regmap.h>
1b132ea0	13	#include <linux/slab.h>
a1533d94 BS	14	#include <sound/core.h>
	15	#include <sound/pcm.h>
	16	#include <sound/pcm_params.h>
	17	#include <sound/initval.h>
	18	#include <sound/soc.h>
	19	#include <sound/tlv.h>
6c3d713e	20
a1533d94 BS	21	#include "ad193x.h"
	22
	23	/* codec private data */
	24	struct ad193x_priv {
30ab1e78	25	struct regmap *regmap;
f0fba2ad	26	int sysclk;
a1533d94 BS	27	};
a1533d94 BS	28
a1533d94 BS	29	/*
	30	* AD193X volume/mute/de-emphasis etc. controls
	31	*/
c4e7a4a2	32	static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
a1533d94 BS	33
	34	static const struct soc_enum ad193x_deemp_enum =
	35	SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);
	36
591c034a LPC	37	static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);
591c034a LPC	38
a1533d94 BS	39	static const struct snd_kcontrol_new ad193x_snd_controls[] = {
a1533d94 BS	40	/* DAC volume control */
591c034a LPC	41	SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
	42	AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),
	43	SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,
	44	AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),
	45	SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,
	46	AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),
	47	SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,
	48	AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),
a1533d94 BS	49
	50	/* ADC switch control */
	51	SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
	52	AD193X_ADCR1_MUTE, 1, 1),
	53	SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
	54	AD193X_ADCR2_MUTE, 1, 1),
	55
	56	/* DAC switch control */
	57	SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
	58	AD193X_DACR1_MUTE, 1, 1),
	59	SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
	60	AD193X_DACR2_MUTE, 1, 1),
	61	SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
	62	AD193X_DACR3_MUTE, 1, 1),
	63	SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
	64	AD193X_DACR4_MUTE, 1, 1),
	65
	66	/* ADC high-pass filter */
	67	SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
	68	AD193X_ADC_HIGHPASS_FILTER, 1, 0),
	69
	70	/* DAC de-emphasis */
	71	SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
	72	};
	73
	74	static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
	75	SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
	76	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
	77	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
	78	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
0718fd27	79	SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0),
a1533d94 BS	80	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
	81	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
	82	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
	83	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
	84	SND_SOC_DAPM_INPUT("ADC1IN"),
	85	SND_SOC_DAPM_INPUT("ADC2IN"),
	86	};
	87
	88	static const struct snd_soc_dapm_route audio_paths[] = {
0718fd27 LPC	89	{ "DAC", NULL, "SYSCLK" },
0718fd27 LPC	90	{ "ADC", NULL, "SYSCLK" },
a1533d94 BS	91	{ "DAC", NULL, "ADC_PWR" },
a1533d94 BS	92	{ "ADC", NULL, "ADC_PWR" },
b21990b4 LPC	93	{ "DAC1OUT", NULL, "DAC" },
	94	{ "DAC2OUT", NULL, "DAC" },
	95	{ "DAC3OUT", NULL, "DAC" },
	96	{ "DAC4OUT", NULL, "DAC" },
	97	{ "ADC", NULL, "ADC1IN" },
	98	{ "ADC", NULL, "ADC2IN" },
0718fd27	99	{ "SYSCLK", NULL, "PLL_PWR" },
a1533d94 BS	100	};
	101
	102	/*
	103	* DAI ops entries
	104	*/
	105
	106	static int ad193x_mute(struct snd_soc_dai *dai, int mute)
	107	{
34cbe168	108	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec);
a1533d94	109
54c96cfd	110	if (mute)
34cbe168	111	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
54c96cfd AL	112	AD193X_DAC_MASTER_MUTE,
	113	AD193X_DAC_MASTER_MUTE);
	114	else
34cbe168	115	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
54c96cfd	116	AD193X_DAC_MASTER_MUTE, 0);
a1533d94 BS	117
	118	return 0;
	119	}
	120
	121	static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
	122	unsigned int rx_mask, int slots, int width)
	123	{
34cbe168	124	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec);
b82ca578	125	unsigned int channels;
a1533d94 BS	126
	127	switch (slots) {
	128	case 2:
b82ca578	129	channels = AD193X_2_CHANNELS;
a1533d94 BS	130	break;
a1533d94 BS	131	case 4:
b82ca578	132	channels = AD193X_4_CHANNELS;
a1533d94 BS	133	break;
a1533d94 BS	134	case 8:
b82ca578	135	channels = AD193X_8_CHANNELS;
a1533d94 BS	136	break;
a1533d94 BS	137	case 16:
b82ca578	138	channels = AD193X_16_CHANNELS;
a1533d94 BS	139	break;
	140	default:
	141	return -EINVAL;
	142	}
	143
34cbe168 LPC	144	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
	145	AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);
	146	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
	147	AD193X_ADC_CHAN_MASK, channels << AD193X_ADC_CHAN_SHFT);
a1533d94 BS	148
	149	return 0;
	150	}
	151
	152	static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
	153	unsigned int fmt)
	154	{
34cbe168	155	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec_dai->codec);
b82ca578 LPC	156	unsigned int adc_serfmt = 0;
	157	unsigned int adc_fmt = 0;
	158	unsigned int dac_fmt = 0;
a1533d94 BS	159
	160	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
	161	* with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
	162	*/
	163	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	164	case SND_SOC_DAIFMT_I2S:
b82ca578	165	adc_serfmt \|= AD193X_ADC_SERFMT_TDM;
a1533d94 BS	166	break;
a1533d94 BS	167	case SND_SOC_DAIFMT_DSP_A:
b82ca578	168	adc_serfmt \|= AD193X_ADC_SERFMT_AUX;
a1533d94 BS	169	break;
	170	default:
	171	return -EINVAL;
	172	}
	173
	174	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	175	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
a1533d94 BS	176	break;
a1533d94 BS	177	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
b82ca578 LPC	178	adc_fmt \|= AD193X_ADC_LEFT_HIGH;
b82ca578 LPC	179	dac_fmt \|= AD193X_DAC_LEFT_HIGH;
a1533d94 BS	180	break;
a1533d94 BS	181	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
b82ca578 LPC	182	adc_fmt \|= AD193X_ADC_BCLK_INV;
b82ca578 LPC	183	dac_fmt \|= AD193X_DAC_BCLK_INV;
a1533d94	184	break;
a1533d94	185	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
b82ca578 LPC	186	adc_fmt \|= AD193X_ADC_LEFT_HIGH;
	187	adc_fmt \|= AD193X_ADC_BCLK_INV;
	188	dac_fmt \|= AD193X_DAC_LEFT_HIGH;
	189	dac_fmt \|= AD193X_DAC_BCLK_INV;
a1533d94 BS	190	break;
	191	default:
	192	return -EINVAL;
	193	}
	194
	195	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	196	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
b82ca578 LPC	197	adc_fmt \|= AD193X_ADC_LCR_MASTER;
	198	adc_fmt \|= AD193X_ADC_BCLK_MASTER;
	199	dac_fmt \|= AD193X_DAC_LCR_MASTER;
	200	dac_fmt \|= AD193X_DAC_BCLK_MASTER;
a1533d94 BS	201	break;
a1533d94 BS	202	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
b82ca578 LPC	203	adc_fmt \|= AD193X_ADC_LCR_MASTER;
b82ca578 LPC	204	dac_fmt \|= AD193X_DAC_LCR_MASTER;
a1533d94 BS	205	break;
a1533d94 BS	206	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
b82ca578 LPC	207	adc_fmt \|= AD193X_ADC_BCLK_MASTER;
b82ca578 LPC	208	dac_fmt \|= AD193X_DAC_BCLK_MASTER;
a1533d94 BS	209	break;
a1533d94 BS	210	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
a1533d94 BS	211	break;
	212	default:
	213	return -EINVAL;
	214	}
	215
34cbe168 LPC	216	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
	217	AD193X_ADC_SERFMT_MASK, adc_serfmt);
	218	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
	219	AD193X_ADC_FMT_MASK, adc_fmt);
	220	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
	221	AD193X_DAC_FMT_MASK, dac_fmt);
a1533d94 BS	222
	223	return 0;
	224	}
	225
fab90aa4 BS	226	static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	227	int clk_id, unsigned int freq, int dir)
	228	{
	229	struct snd_soc_codec *codec = codec_dai->codec;
	230	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	231	switch (freq) {
	232	case 12288000:
	233	case 18432000:
	234	case 24576000:
	235	case 36864000:
	236	ad193x->sysclk = freq;
	237	return 0;
	238	}
	239	return -EINVAL;
	240	}
	241
a1533d94 BS	242	static int ad193x_hw_params(struct snd_pcm_substream *substream,
	243	struct snd_pcm_hw_params *params,
	244	struct snd_soc_dai *dai)
	245	{
54c96cfd	246	int word_len = 0, master_rate = 0;
e6968a17	247	struct snd_soc_codec *codec = dai->codec;
fab90aa4	248	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
a1533d94 BS	249
a1533d94 BS	250	/* bit size */
d4dd1fdf MB	251	switch (params_width(params)) {
d4dd1fdf MB	252	case 16:
a1533d94 BS	253	word_len = 3;
a1533d94 BS	254	break;
d4dd1fdf	255	case 20:
a1533d94 BS	256	word_len = 1;
a1533d94 BS	257	break;
d4dd1fdf MB	258	case 24:
d4dd1fdf MB	259	case 32:
a1533d94 BS	260	word_len = 0;
	261	break;
	262	}
	263
fab90aa4 BS	264	switch (ad193x->sysclk) {
	265	case 12288000:
	266	master_rate = AD193X_PLL_INPUT_256;
	267	break;
	268	case 18432000:
	269	master_rate = AD193X_PLL_INPUT_384;
	270	break;
	271	case 24576000:
	272	master_rate = AD193X_PLL_INPUT_512;
	273	break;
	274	case 36864000:
	275	master_rate = AD193X_PLL_INPUT_768;
	276	break;
	277	}
	278
34cbe168	279	regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
54c96cfd	280	AD193X_PLL_INPUT_MASK, master_rate);
fab90aa4	281
34cbe168	282	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
54c96cfd AL	283	AD193X_DAC_WORD_LEN_MASK,
54c96cfd AL	284	word_len << AD193X_DAC_WORD_LEN_SHFT);
a1533d94	285
34cbe168	286	regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
54c96cfd	287	AD193X_ADC_WORD_LEN_MASK, word_len);
a1533d94 BS	288
	289	return 0;
	290	}
	291
85e7652d	292	static const struct snd_soc_dai_ops ad193x_dai_ops = {
9dd7b79a BS	293	.hw_params = ad193x_hw_params,
	294	.digital_mute = ad193x_mute,
	295	.set_tdm_slot = ad193x_set_tdm_slot,
fab90aa4	296	.set_sysclk = ad193x_set_dai_sysclk,
9dd7b79a BS	297	.set_fmt = ad193x_set_dai_fmt,
	298	};
	299
	300	/* codec DAI instance */
f0fba2ad LG	301	static struct snd_soc_dai_driver ad193x_dai = {
f0fba2ad LG	302	.name = "ad193x-hifi",
9dd7b79a BS	303	.playback = {
	304	.stream_name = "Playback",
	305	.channels_min = 2,
	306	.channels_max = 8,
	307	.rates = SNDRV_PCM_RATE_48000,
	308	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	309	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	310	},
	311	.capture = {
	312	.stream_name = "Capture",
	313	.channels_min = 2,
	314	.channels_max = 4,
	315	.rates = SNDRV_PCM_RATE_48000,
	316	.formats = SNDRV_PCM_FMTBIT_S32_LE \| SNDRV_PCM_FMTBIT_S16_LE \|
	317	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE,
	318	},
	319	.ops = &ad193x_dai_ops,
	320	};
9dd7b79a	321
6c3d713e	322	static int ad193x_codec_probe(struct snd_soc_codec *codec)
a1533d94	323	{
f0fba2ad LG	324	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
f0fba2ad LG	325	int ret;
a1533d94	326
30ab1e78 LPC	327	codec->control_data = ad193x->regmap;
30ab1e78 LPC	328	ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
f0fba2ad	329	if (ret < 0) {
119bfef2	330	dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
f0fba2ad	331	return ret;
a1533d94 BS	332	}
a1533d94 BS	333
f0fba2ad	334	/* default setting for ad193x */
a1533d94	335
f0fba2ad	336	/* unmute dac channels */
34cbe168	337	regmap_write(ad193x->regmap, AD193X_DAC_CHNL_MUTE, 0x0);
f0fba2ad	338	/* de-emphasis: 48kHz, powedown dac */
34cbe168	339	regmap_write(ad193x->regmap, AD193X_DAC_CTRL2, 0x1A);
f0fba2ad	340	/* powerdown dac, dac in tdm mode */
34cbe168	341	regmap_write(ad193x->regmap, AD193X_DAC_CTRL0, 0x41);
f0fba2ad	342	/* high-pass filter enable */
34cbe168	343	regmap_write(ad193x->regmap, AD193X_ADC_CTRL0, 0x3);
f0fba2ad	344	/* sata delay=1, adc aux mode */
34cbe168	345	regmap_write(ad193x->regmap, AD193X_ADC_CTRL1, 0x43);
f0fba2ad	346	/* pll input: mclki/xi */
34cbe168 LPC	347	regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
34cbe168 LPC	348	regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL1, 0x04);
a1533d94	349
a1533d94 BS	350	return ret;
	351	}
	352
f0fba2ad	353	static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
6c3d713e	354	.probe = ad193x_codec_probe,
b90d4183 LPC	355	.controls = ad193x_snd_controls,
	356	.num_controls = ARRAY_SIZE(ad193x_snd_controls),
	357	.dapm_widgets = ad193x_dapm_widgets,
	358	.num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets),
	359	.dapm_routes = audio_paths,
	360	.num_dapm_routes = ARRAY_SIZE(audio_paths),
a1533d94	361	};
a1533d94	362
34cbe168 LPC	363	static bool adau193x_reg_volatile(struct device *dev, unsigned int reg)
	364	{
	365	return false;
	366	}
	367
6c3d713e	368	const struct regmap_config ad193x_regmap_config = {
34cbe168 LPC	369	.max_register = AD193X_NUM_REGS - 1,
34cbe168 LPC	370	.volatile_reg = adau193x_reg_volatile,
30ab1e78	371	};
6c3d713e	372	EXPORT_SYMBOL_GPL(ad193x_regmap_config);
30ab1e78	373
6c3d713e	374	int ad193x_probe(struct device dev, struct regmap regmap)
a1533d94	375	{
f0fba2ad	376	struct ad193x_priv *ad193x;
f0fba2ad	377
6c3d713e LPC	378	if (IS_ERR(regmap))
6c3d713e LPC	379	return PTR_ERR(regmap);
a1533d94	380
6c3d713e	381	ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL);
f0fba2ad LG	382	if (ad193x == NULL)
	383	return -ENOMEM;
	384
6c3d713e	385	ad193x->regmap = regmap;
a1533d94	386
6c3d713e	387	dev_set_drvdata(dev, ad193x);
a1533d94	388
6c3d713e LPC	389	return snd_soc_register_codec(dev, &soc_codec_dev_ad193x,
6c3d713e LPC	390	&ad193x_dai, 1);
a1533d94	391	}
6c3d713e	392	EXPORT_SYMBOL_GPL(ad193x_probe);
a1533d94 BS	393
	394	MODULE_DESCRIPTION("ASoC ad193x driver");
	395	MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
	396	MODULE_LICENSE("GPL");