[linux-2.6-block.git] / sound / soc / codecs / ak4613.c

/*
 * ak4613.c  --  Asahi Kasei ALSA Soc Audio driver
 *
 * Copyright (C) 2015 Renesas Electronics Corporation
 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * Based on ak4642.c by Kuninori Morimoto
 * Based on wm8731.c by Richard Purdie
 * Based on ak4535.c by Richard Purdie
 * Based on wm8753.c by Liam Girdwood
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/clk.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/of_device.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>

#define PW_MGMT1	0x00 /* Power Management 1 */
#define PW_MGMT2	0x01 /* Power Management 2 */
#define PW_MGMT3	0x02 /* Power Management 3 */
#define CTRL1		0x03 /* Control 1 */
#define CTRL2		0x04 /* Control 2 */
#define DEMP1		0x05 /* De-emphasis1 */
#define DEMP2		0x06 /* De-emphasis2 */
#define OFD		0x07 /* Overflow Detect */
#define ZRD		0x08 /* Zero Detect */
#define ICTRL		0x09 /* Input Control */
#define OCTRL		0x0a /* Output Control */
#define LOUT1		0x0b /* LOUT1 Volume Control */
#define ROUT1		0x0c /* ROUT1 Volume Control */
#define LOUT2		0x0d /* LOUT2 Volume Control */
#define ROUT2		0x0e /* ROUT2 Volume Control */
#define LOUT3		0x0f /* LOUT3 Volume Control */
#define ROUT3		0x10 /* ROUT3 Volume Control */
#define LOUT4		0x11 /* LOUT4 Volume Control */
#define ROUT4		0x12 /* ROUT4 Volume Control */
#define LOUT5		0x13 /* LOUT5 Volume Control */
#define ROUT5		0x14 /* ROUT5 Volume Control */
#define LOUT6		0x15 /* LOUT6 Volume Control */
#define ROUT6		0x16 /* ROUT6 Volume Control */

/* PW_MGMT1 */
#define RSTN		BIT(0)
#define PMDAC		BIT(1)
#define PMADC		BIT(2)
#define PMVR		BIT(3)

/* PW_MGMT2 */
#define PMAD_ALL	0x7

/* PW_MGMT3 */
#define PMDA_ALL	0x3f

/* CTRL1 */
#define DIF0		BIT(3)
#define DIF1		BIT(4)
#define DIF2		BIT(5)
#define TDM0		BIT(6)
#define TDM1		BIT(7)
#define NO_FMT		(0xff)
#define FMT_MASK	(0xf8)

/* CTRL2 */
#define DFS_MASK		(3 << 2)
#define DFS_NORMAL_SPEED	(0 << 2)
#define DFS_DOUBLE_SPEED	(1 << 2)
#define DFS_QUAD_SPEED		(2 << 2)

struct ak4613_formats {
	unsigned int width;
	unsigned int fmt;
};

struct ak4613_interface {
	struct ak4613_formats capture;
	struct ak4613_formats playback;
};

struct ak4613_priv {
	struct mutex lock;
	const struct ak4613_interface *iface;

	unsigned int fmt;
	u8 oc;
	u8 ic;
	int cnt;
};

/*
 * Playback Volume
 *
 * max : 0x00 : 0 dB
 *       ( 0.5 dB step )
 * min : 0xFE : -127.0 dB
 * mute: 0xFF
 */
static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);

static const struct snd_kcontrol_new ak4613_snd_controls[] = {
	SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
			 0, 0xFF, 1, out_tlv),
};

static const struct reg_default ak4613_reg[] = {
	{ 0x0,  0x0f }, { 0x1,  0x07 }, { 0x2,  0x3f }, { 0x3,  0x20 },
	{ 0x4,  0x20 }, { 0x5,  0x55 }, { 0x6,  0x05 }, { 0x7,  0x07 },
	{ 0x8,  0x0f }, { 0x9,  0x07 }, { 0xa,  0x3f }, { 0xb,  0x00 },
	{ 0xc,  0x00 }, { 0xd,  0x00 }, { 0xe,  0x00 }, { 0xf,  0x00 },
	{ 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
	{ 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
};

#define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3)
#define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
static const struct ak4613_interface ak4613_iface[] = {
	/* capture */				/* playback */
	[0] = {	AUDIO_IFACE(24, LEFT_J),	AUDIO_IFACE(16, RIGHT_J) },
	[1] = {	AUDIO_IFACE(24, LEFT_J),	AUDIO_IFACE(20, RIGHT_J) },
	[2] = {	AUDIO_IFACE(24, LEFT_J),	AUDIO_IFACE(24, RIGHT_J) },
	[3] = {	AUDIO_IFACE(24, LEFT_J),	AUDIO_IFACE(24, LEFT_J) },
	[4] = {	AUDIO_IFACE(24, I2S),		AUDIO_IFACE(24, I2S) },
};

static const struct regmap_config ak4613_regmap_cfg = {
	.reg_bits		= 8,
	.val_bits		= 8,
	.max_register		= 0x16,
	.reg_defaults		= ak4613_reg,
	.num_reg_defaults	= ARRAY_SIZE(ak4613_reg),
};

static const struct of_device_id ak4613_of_match[] = {
	{ .compatible = "asahi-kasei,ak4613",	.data = &ak4613_regmap_cfg },
	{},
};
MODULE_DEVICE_TABLE(of, ak4613_of_match);

static const struct i2c_device_id ak4613_i2c_id[] = {
	{ "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);

static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {

	/* Outputs */
	SND_SOC_DAPM_OUTPUT("LOUT1"),
	SND_SOC_DAPM_OUTPUT("LOUT2"),
	SND_SOC_DAPM_OUTPUT("LOUT3"),
	SND_SOC_DAPM_OUTPUT("LOUT4"),
	SND_SOC_DAPM_OUTPUT("LOUT5"),
	SND_SOC_DAPM_OUTPUT("LOUT6"),

	SND_SOC_DAPM_OUTPUT("ROUT1"),
	SND_SOC_DAPM_OUTPUT("ROUT2"),
	SND_SOC_DAPM_OUTPUT("ROUT3"),
	SND_SOC_DAPM_OUTPUT("ROUT4"),
	SND_SOC_DAPM_OUTPUT("ROUT5"),
	SND_SOC_DAPM_OUTPUT("ROUT6"),

	/* Inputs */
	SND_SOC_DAPM_INPUT("LIN1"),
	SND_SOC_DAPM_INPUT("LIN2"),

	SND_SOC_DAPM_INPUT("RIN1"),
	SND_SOC_DAPM_INPUT("RIN2"),

	/* DAC */
	SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
	SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
	SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
	SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
	SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
	SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),

	/* ADC */
	SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
	SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
};

static const struct snd_soc_dapm_route ak4613_intercon[] = {
	{"LOUT1", NULL, "DAC1"},
	{"LOUT2", NULL, "DAC2"},
	{"LOUT3", NULL, "DAC3"},
	{"LOUT4", NULL, "DAC4"},
	{"LOUT5", NULL, "DAC5"},
	{"LOUT6", NULL, "DAC6"},

	{"ROUT1", NULL, "DAC1"},
	{"ROUT2", NULL, "DAC2"},
	{"ROUT3", NULL, "DAC3"},
	{"ROUT4", NULL, "DAC4"},
	{"ROUT5", NULL, "DAC5"},
	{"ROUT6", NULL, "DAC6"},

	{"DAC1", NULL, "Playback"},
	{"DAC2", NULL, "Playback"},
	{"DAC3", NULL, "Playback"},
	{"DAC4", NULL, "Playback"},
	{"DAC5", NULL, "Playback"},
	{"DAC6", NULL, "Playback"},

	{"Capture", NULL, "ADC1"},
	{"Capture", NULL, "ADC2"},

	{"ADC1", NULL, "LIN1"},
	{"ADC2", NULL, "LIN2"},

	{"ADC1", NULL, "RIN1"},
	{"ADC2", NULL, "RIN2"},
};

static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
			       struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
	struct device *dev = codec->dev;

	mutex_lock(&priv->lock);
	priv->cnt--;
	if (priv->cnt < 0) {
		dev_err(dev, "unexpected counter error\n");
		priv->cnt = 0;
	}
	if (!priv->cnt)
		priv->iface = NULL;
	mutex_unlock(&priv->lock);
}

static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
	struct snd_soc_codec *codec = dai->codec;
	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);

	fmt &= SND_SOC_DAIFMT_FORMAT_MASK;

	switch (fmt) {
	case SND_SOC_DAIFMT_RIGHT_J:
	case SND_SOC_DAIFMT_LEFT_J:
	case SND_SOC_DAIFMT_I2S:
		priv->fmt = fmt;

		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface,
				    int is_play,
				    unsigned int fmt, unsigned int width)
{
	const struct ak4613_formats *fmts;

	fmts = (is_play) ? &iface->playback : &iface->capture;

	if (fmts->fmt != fmt)
		return false;

	if (fmt == SND_SOC_DAIFMT_RIGHT_J) {
		if (fmts->width != width)
			return false;
	} else {
		if (fmts->width < width)
			return false;
	}

	return true;
}

static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params,
				struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
	const struct ak4613_interface *iface;
	struct device *dev = codec->dev;
	unsigned int width = params_width(params);
	unsigned int fmt = priv->fmt;
	unsigned int rate;
	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
	int i, ret;
	u8 fmt_ctrl, ctrl2;

	rate = params_rate(params);
	switch (rate) {
	case 32000:
	case 44100:
	case 48000:
		ctrl2 = DFS_NORMAL_SPEED;
		break;
	case 88200:
	case 96000:
		ctrl2 = DFS_DOUBLE_SPEED;
		break;
	case 176400:
	case 192000:
		ctrl2 = DFS_QUAD_SPEED;
		break;
	default:
		return -EINVAL;
	}

	/*
	 * FIXME
	 *
	 * It doesn't support TDM at this point
	 */
	fmt_ctrl = NO_FMT;
	ret = -EINVAL;
	iface = NULL;

	mutex_lock(&priv->lock);
	if (priv->iface) {
		if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width))
			iface = priv->iface;
	} else {
		for (i = ARRAY_SIZE(ak4613_iface); i >= 0; i--) {
			if (!ak4613_dai_fmt_matching(ak4613_iface + i,
						     is_play,
						     fmt, width))
				continue;
			iface = ak4613_iface + i;
			break;
		}
	}

	if ((priv->iface == NULL) ||
	    (priv->iface == iface)) {
		priv->iface = iface;
		priv->cnt++;
		ret = 0;
	}
	mutex_unlock(&priv->lock);

	if (ret < 0)
		goto hw_params_end;

	fmt_ctrl = AUDIO_IFACE_TO_VAL(iface);

	snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
	snd_soc_update_bits(codec, CTRL2, DFS_MASK, ctrl2);

	snd_soc_write(codec, ICTRL, priv->ic);
	snd_soc_write(codec, OCTRL, priv->oc);

hw_params_end:
	if (ret < 0)
		dev_warn(dev, "unsupported data width/format combination\n");

	return ret;
}

static int ak4613_set_bias_level(struct snd_soc_codec *codec,
				 enum snd_soc_bias_level level)
{
	u8 mgmt1 = 0;

	switch (level) {
	case SND_SOC_BIAS_ON:
		mgmt1 |= RSTN;
		/* fall through */
	case SND_SOC_BIAS_PREPARE:
		mgmt1 |= PMADC | PMDAC;
		/* fall through */
	case SND_SOC_BIAS_STANDBY:
		mgmt1 |= PMVR;
		/* fall through */
	case SND_SOC_BIAS_OFF:
	default:
		break;
	}

	snd_soc_write(codec, PW_MGMT1, mgmt1);

	return 0;
}

static const struct snd_soc_dai_ops ak4613_dai_ops = {
	.shutdown	= ak4613_dai_shutdown,
	.set_fmt	= ak4613_dai_set_fmt,
	.hw_params	= ak4613_dai_hw_params,
};

#define AK4613_PCM_RATE		(SNDRV_PCM_RATE_32000  |\
				 SNDRV_PCM_RATE_44100  |\
				 SNDRV_PCM_RATE_48000  |\
				 SNDRV_PCM_RATE_64000  |\
				 SNDRV_PCM_RATE_88200  |\
				 SNDRV_PCM_RATE_96000  |\
				 SNDRV_PCM_RATE_176400 |\
				 SNDRV_PCM_RATE_192000)
#define AK4613_PCM_FMTBIT	(SNDRV_PCM_FMTBIT_S16_LE |\
				 SNDRV_PCM_FMTBIT_S24_LE)

static struct snd_soc_dai_driver ak4613_dai = {
	.name = "ak4613-hifi",
	.playback = {
		.stream_name	= "Playback",
		.channels_min	= 2,
		.channels_max	= 2,
		.rates		= AK4613_PCM_RATE,
		.formats	= AK4613_PCM_FMTBIT,
	},
	.capture = {
		.stream_name	= "Capture",
		.channels_min	= 2,
		.channels_max	= 2,
		.rates		= AK4613_PCM_RATE,
		.formats	= AK4613_PCM_FMTBIT,
	},
	.ops = &ak4613_dai_ops,
	.symmetric_rates = 1,
};

static int ak4613_resume(struct snd_soc_codec *codec)
{
	struct regmap *regmap = dev_get_regmap(codec->dev, NULL);

	regcache_mark_dirty(regmap);
	return regcache_sync(regmap);
}

static struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
	.resume			= ak4613_resume,
	.set_bias_level		= ak4613_set_bias_level,
	.controls		= ak4613_snd_controls,
	.num_controls		= ARRAY_SIZE(ak4613_snd_controls),
	.dapm_widgets		= ak4613_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(ak4613_dapm_widgets),
	.dapm_routes		= ak4613_intercon,
	.num_dapm_routes	= ARRAY_SIZE(ak4613_intercon),
};

static void ak4613_parse_of(struct ak4613_priv *priv,
			    struct device *dev)
{
	struct device_node *np = dev->of_node;
	char prop[32];
	int i;

	/* Input 1 - 2 */
	for (i = 0; i < 2; i++) {
		snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1);
		if (!of_get_property(np, prop, NULL))
			priv->ic |= 1 << i;
	}

	/* Output 1 - 6 */
	for (i = 0; i < 6; i++) {
		snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1);
		if (!of_get_property(np, prop, NULL))
			priv->oc |= 1 << i;
	}
}

static int ak4613_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct device *dev = &i2c->dev;
	struct device_node *np = dev->of_node;
	const struct regmap_config *regmap_cfg;
	struct regmap *regmap;
	struct ak4613_priv *priv;

	regmap_cfg = NULL;
	if (np) {
		const struct of_device_id *of_id;

		of_id = of_match_device(ak4613_of_match, dev);
		if (of_id)
			regmap_cfg = of_id->data;
	} else {
		regmap_cfg = (const struct regmap_config *)id->driver_data;
	}

	if (!regmap_cfg)
		return -EINVAL;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	ak4613_parse_of(priv, dev);

	priv->iface		= NULL;
	priv->cnt		= 0;

	mutex_init(&priv->lock);

	i2c_set_clientdata(i2c, priv);

	regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
	if (IS_ERR(regmap))
		return PTR_ERR(regmap);

	return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
				      &ak4613_dai, 1);
}

static int ak4613_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);
	return 0;
}

static struct i2c_driver ak4613_i2c_driver = {
	.driver = {
		.name = "ak4613-codec",
		.owner = THIS_MODULE,
		.of_match_table = ak4613_of_match,
	},
	.probe		= ak4613_i2c_probe,
	.remove		= ak4613_i2c_remove,
	.id_table	= ak4613_i2c_id,
};

module_i2c_driver(ak4613_i2c_driver);

MODULE_DESCRIPTION("Soc AK4613 driver");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
b0757062 KM	1	/*
	2	* ak4613.c -- Asahi Kasei ALSA Soc Audio driver
	3	*
	4	* Copyright (C) 2015 Renesas Electronics Corporation
	5	* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
	6	*
	7	* Based on ak4642.c by Kuninori Morimoto
	8	* Based on wm8731.c by Richard Purdie
	9	* Based on ak4535.c by Richard Purdie
	10	* Based on wm8753.c by Liam Girdwood
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License version 2 as
	14	* published by the Free Software Foundation.
	15	*/
	16
	17	#include <linux/clk.h>
	18	#include <linux/i2c.h>
	19	#include <linux/slab.h>
	20	#include <linux/of_device.h>
	21	#include <linux/module.h>
	22	#include <linux/regmap.h>
	23	#include <sound/soc.h>
	24	#include <sound/pcm_params.h>
e3a4d958	25	#include <sound/tlv.h>
b0757062 KM	26
	27	#define PW_MGMT1 0x00 /* Power Management 1 */
	28	#define PW_MGMT2 0x01 /* Power Management 2 */
	29	#define PW_MGMT3 0x02 /* Power Management 3 */
	30	#define CTRL1 0x03 /* Control 1 */
	31	#define CTRL2 0x04 /* Control 2 */
	32	#define DEMP1 0x05 /* De-emphasis1 */
	33	#define DEMP2 0x06 /* De-emphasis2 */
	34	#define OFD 0x07 /* Overflow Detect */
	35	#define ZRD 0x08 /* Zero Detect */
	36	#define ICTRL 0x09 /* Input Control */
	37	#define OCTRL 0x0a /* Output Control */
	38	#define LOUT1 0x0b /* LOUT1 Volume Control */
	39	#define ROUT1 0x0c /* ROUT1 Volume Control */
	40	#define LOUT2 0x0d /* LOUT2 Volume Control */
	41	#define ROUT2 0x0e /* ROUT2 Volume Control */
	42	#define LOUT3 0x0f /* LOUT3 Volume Control */
	43	#define ROUT3 0x10 /* ROUT3 Volume Control */
	44	#define LOUT4 0x11 /* LOUT4 Volume Control */
	45	#define ROUT4 0x12 /* ROUT4 Volume Control */
	46	#define LOUT5 0x13 /* LOUT5 Volume Control */
	47	#define ROUT5 0x14 /* ROUT5 Volume Control */
	48	#define LOUT6 0x15 /* LOUT6 Volume Control */
	49	#define ROUT6 0x16 /* ROUT6 Volume Control */
	50
	51	/* PW_MGMT1 */
	52	#define RSTN BIT(0)
	53	#define PMDAC BIT(1)
	54	#define PMADC BIT(2)
	55	#define PMVR BIT(3)
	56
	57	/* PW_MGMT2 */
	58	#define PMAD_ALL 0x7
	59
	60	/* PW_MGMT3 */
	61	#define PMDA_ALL 0x3f
	62
	63	/* CTRL1 */
	64	#define DIF0 BIT(3)
	65	#define DIF1 BIT(4)
	66	#define DIF2 BIT(5)
	67	#define TDM0 BIT(6)
	68	#define TDM1 BIT(7)
	69	#define NO_FMT (0xff)
	70	#define FMT_MASK (0xf8)
	71
	72	/* CTRL2 */
b323dd30	73	#define DFS_MASK (3 << 2)
b0757062 KM	74	#define DFS_NORMAL_SPEED (0 << 2)
	75	#define DFS_DOUBLE_SPEED (1 << 2)
	76	#define DFS_QUAD_SPEED (2 << 2)
	77
b0757062 KM	78	struct ak4613_formats {
	79	unsigned int width;
	80	unsigned int fmt;
	81	};
	82
	83	struct ak4613_interface {
	84	struct ak4613_formats capture;
	85	struct ak4613_formats playback;
	86	};
	87
35299f17 KM	88	struct ak4613_priv {
	89	struct mutex lock;
	90	const struct ak4613_interface *iface;
	91
	92	unsigned int fmt;
	93	u8 oc;
	94	u8 ic;
	95	int cnt;
	96	};
	97
e3a4d958 KM	98	/*
	99	* Playback Volume
	100	*
	101	* max : 0x00 : 0 dB
	102	* ( 0.5 dB step )
	103	* min : 0xFE : -127.0 dB
	104	* mute: 0xFF
	105	*/
	106	static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);
	107
	108	static const struct snd_kcontrol_new ak4613_snd_controls[] = {
	109	SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
	110	0, 0xFF, 1, out_tlv),
	111	SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
	112	0, 0xFF, 1, out_tlv),
	113	SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
	114	0, 0xFF, 1, out_tlv),
	115	SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
	116	0, 0xFF, 1, out_tlv),
	117	SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
	118	0, 0xFF, 1, out_tlv),
	119	SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
	120	0, 0xFF, 1, out_tlv),
	121	};
	122
b0757062 KM	123	static const struct reg_default ak4613_reg[] = {
	124	{ 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 },
	125	{ 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 },
	126	{ 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 },
	127	{ 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 },
	128	{ 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
	129	{ 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
	130	};
	131
35299f17	132	#define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3)
b0757062 KM	133	#define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
	134	static const struct ak4613_interface ak4613_iface[] = {
	135	/* capture / / playback */
	136	[0] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(16, RIGHT_J) },
	137	[1] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(20, RIGHT_J) },
	138	[2] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, RIGHT_J) },
	139	[3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) },
	140	[4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) },
	141	};
	142
	143	static const struct regmap_config ak4613_regmap_cfg = {
	144	.reg_bits = 8,
	145	.val_bits = 8,
	146	.max_register = 0x16,
	147	.reg_defaults = ak4613_reg,
	148	.num_reg_defaults = ARRAY_SIZE(ak4613_reg),
	149	};
	150
	151	static const struct of_device_id ak4613_of_match[] = {
	152	{ .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg },
	153	{},
	154	};
	155	MODULE_DEVICE_TABLE(of, ak4613_of_match);
	156
	157	static const struct i2c_device_id ak4613_i2c_id[] = {
	158	{ "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
	159	{ }
	160	};
	161	MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);
	162
	163	static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {
	164
	165	/* Outputs */
	166	SND_SOC_DAPM_OUTPUT("LOUT1"),
	167	SND_SOC_DAPM_OUTPUT("LOUT2"),
	168	SND_SOC_DAPM_OUTPUT("LOUT3"),
	169	SND_SOC_DAPM_OUTPUT("LOUT4"),
	170	SND_SOC_DAPM_OUTPUT("LOUT5"),
	171	SND_SOC_DAPM_OUTPUT("LOUT6"),
	172
	173	SND_SOC_DAPM_OUTPUT("ROUT1"),
	174	SND_SOC_DAPM_OUTPUT("ROUT2"),
	175	SND_SOC_DAPM_OUTPUT("ROUT3"),
	176	SND_SOC_DAPM_OUTPUT("ROUT4"),
	177	SND_SOC_DAPM_OUTPUT("ROUT5"),
	178	SND_SOC_DAPM_OUTPUT("ROUT6"),
	179
	180	/* Inputs */
	181	SND_SOC_DAPM_INPUT("LIN1"),
	182	SND_SOC_DAPM_INPUT("LIN2"),
	183
	184	SND_SOC_DAPM_INPUT("RIN1"),
	185	SND_SOC_DAPM_INPUT("RIN2"),
	186
	187	/* DAC */
	188	SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
	189	SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
	190	SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
	191	SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
	192	SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
	193	SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),
	194
	195	/* ADC */
	196	SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
197	SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
198	};
199
200	static const struct snd_soc_dapm_route ak4613_intercon[] = {
201	{"LOUT1", NULL, "DAC1"},
202	{"LOUT2", NULL, "DAC2"},
203	{"LOUT3", NULL, "DAC3"},
204	{"LOUT4", NULL, "DAC4"},
205	{"LOUT5", NULL, "DAC5"},
206	{"LOUT6", NULL, "DAC6"},
207
208	{"ROUT1", NULL, "DAC1"},
209	{"ROUT2", NULL, "DAC2"},
210	{"ROUT3", NULL, "DAC3"},
211	{"ROUT4", NULL, "DAC4"},
212	{"ROUT5", NULL, "DAC5"},
213	{"ROUT6", NULL, "DAC6"},
214
215	{"DAC1", NULL, "Playback"},
216	{"DAC2", NULL, "Playback"},
217	{"DAC3", NULL, "Playback"},
218	{"DAC4", NULL, "Playback"},
219	{"DAC5", NULL, "Playback"},
220	{"DAC6", NULL, "Playback"},
221
222	{"Capture", NULL, "ADC1"},
223	{"Capture", NULL, "ADC2"},
224
225	{"ADC1", NULL, "LIN1"},
226	{"ADC2", NULL, "LIN2"},
227
228	{"ADC1", NULL, "RIN1"},
229	{"ADC2", NULL, "RIN2"},
230	};
231
232	static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
233	struct snd_soc_dai *dai)
234	{
235	struct snd_soc_codec *codec = dai->codec;
236	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
237	struct device *dev = codec->dev;
238
239	mutex_lock(&priv->lock);
240	priv->cnt--;
241	if (priv->cnt < 0) {
242	dev_err(dev, "unexpected counter error\n");
243	priv->cnt = 0;
244	}
245	if (!priv->cnt)
35299f17	246	priv->iface = NULL;
b0757062 KM	247	mutex_unlock(&priv->lock);
	248	}
	249
	250	static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
	251	{
	252	struct snd_soc_codec *codec = dai->codec;
	253	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
	254
	255	fmt &= SND_SOC_DAIFMT_FORMAT_MASK;
	256
	257	switch (fmt) {
	258	case SND_SOC_DAIFMT_RIGHT_J:
	259	case SND_SOC_DAIFMT_LEFT_J:
	260	case SND_SOC_DAIFMT_I2S:
	261	priv->fmt = fmt;
	262
	263	break;
	264	default:
	265	return -EINVAL;
	266	}
	267
	268	return 0;
	269	}
	270
35299f17 KM	271	static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface,
	272	int is_play,
	273	unsigned int fmt, unsigned int width)
	274	{
	275	const struct ak4613_formats *fmts;
	276
	277	fmts = (is_play) ? &iface->playback : &iface->capture;
	278
	279	if (fmts->fmt != fmt)
	280	return false;
	281
	282	if (fmt == SND_SOC_DAIFMT_RIGHT_J) {
	283	if (fmts->width != width)
	284	return false;
	285	} else {
	286	if (fmts->width < width)
	287	return false;
	288	}
	289
	290	return true;
	291	}
	292
b0757062 KM	293	static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
	294	struct snd_pcm_hw_params *params,
	295	struct snd_soc_dai *dai)
	296	{
	297	struct snd_soc_codec *codec = dai->codec;
	298	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
35299f17	299	const struct ak4613_interface *iface;
b0757062 KM	300	struct device *dev = codec->dev;
	301	unsigned int width = params_width(params);
	302	unsigned int fmt = priv->fmt;
	303	unsigned int rate;
	304	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
	305	int i, ret;
	306	u8 fmt_ctrl, ctrl2;
	307
	308	rate = params_rate(params);
	309	switch (rate) {
	310	case 32000:
	311	case 44100:
	312	case 48000:
	313	ctrl2 = DFS_NORMAL_SPEED;
	314	break;
	315	case 88200:
	316	case 96000:
	317	ctrl2 = DFS_DOUBLE_SPEED;
	318	break;
	319	case 176400:
	320	case 192000:
	321	ctrl2 = DFS_QUAD_SPEED;
	322	break;
	323	default:
	324	return -EINVAL;
	325	}
	326
	327	/*
	328	* FIXME
	329	*
	330	* It doesn't support TDM at this point
	331	*/
	332	fmt_ctrl = NO_FMT;
35299f17 KM	333	ret = -EINVAL;
35299f17 KM	334	iface = NULL;
b0757062	335
35299f17 KM	336	mutex_lock(&priv->lock);
	337	if (priv->iface) {
	338	if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width))
	339	iface = priv->iface;
	340	} else {
	341	for (i = ARRAY_SIZE(ak4613_iface); i >= 0; i--) {
	342	if (!ak4613_dai_fmt_matching(ak4613_iface + i,
	343	is_play,
	344	fmt, width))
b0757062	345	continue;
35299f17 KM	346	iface = ak4613_iface + i;
35299f17 KM	347	break;
b0757062	348	}
b0757062 KM	349	}
b0757062 KM	350
35299f17 KM	351	if ((priv->iface == NULL) \|\|
	352	(priv->iface == iface)) {
	353	priv->iface = iface;
b0757062 KM	354	priv->cnt++;
	355	ret = 0;
	356	}
	357	mutex_unlock(&priv->lock);
	358
	359	if (ret < 0)
	360	goto hw_params_end;
	361
35299f17 KM	362	fmt_ctrl = AUDIO_IFACE_TO_VAL(iface);
35299f17 KM	363
b0757062	364	snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
b323dd30	365	snd_soc_update_bits(codec, CTRL2, DFS_MASK, ctrl2);
b0757062	366
a3af0c65 KM	367	snd_soc_write(codec, ICTRL, priv->ic);
	368	snd_soc_write(codec, OCTRL, priv->oc);
	369
b0757062 KM	370	hw_params_end:
	371	if (ret < 0)
	372	dev_warn(dev, "unsupported data width/format combination\n");
	373
	374	return ret;
	375	}
	376
	377	static int ak4613_set_bias_level(struct snd_soc_codec *codec,
	378	enum snd_soc_bias_level level)
	379	{
	380	u8 mgmt1 = 0;
	381
	382	switch (level) {
	383	case SND_SOC_BIAS_ON:
	384	mgmt1 \|= RSTN;
	385	/* fall through */
	386	case SND_SOC_BIAS_PREPARE:
	387	mgmt1 \|= PMADC \| PMDAC;
	388	/* fall through */
	389	case SND_SOC_BIAS_STANDBY:
	390	mgmt1 \|= PMVR;
	391	/* fall through */
	392	case SND_SOC_BIAS_OFF:
	393	default:
	394	break;
	395	}
	396
	397	snd_soc_write(codec, PW_MGMT1, mgmt1);
	398
	399	return 0;
	400	}
	401
	402	static const struct snd_soc_dai_ops ak4613_dai_ops = {
	403	.shutdown = ak4613_dai_shutdown,
	404	.set_fmt = ak4613_dai_set_fmt,
	405	.hw_params = ak4613_dai_hw_params,
	406	};
	407
	408	#define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 \|\
	409	SNDRV_PCM_RATE_44100 \|\
	410	SNDRV_PCM_RATE_48000 \|\
	411	SNDRV_PCM_RATE_64000 \|\
	412	SNDRV_PCM_RATE_88200 \|\
	413	SNDRV_PCM_RATE_96000 \|\
	414	SNDRV_PCM_RATE_176400 \|\
	415	SNDRV_PCM_RATE_192000)
	416	#define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S16_LE \|\
	417	SNDRV_PCM_FMTBIT_S24_LE)
	418
	419	static struct snd_soc_dai_driver ak4613_dai = {
	420	.name = "ak4613-hifi",
	421	.playback = {
	422	.stream_name = "Playback",
	423	.channels_min = 2,
	424	.channels_max = 2,
	425	.rates = AK4613_PCM_RATE,
	426	.formats = AK4613_PCM_FMTBIT,
	427	},
	428	.capture = {
	429	.stream_name = "Capture",
	430	.channels_min = 2,
	431	.channels_max = 2,
	432	.rates = AK4613_PCM_RATE,
	433	.formats = AK4613_PCM_FMTBIT,
434	},
435	.ops = &ak4613_dai_ops,
436	.symmetric_rates = 1,
437	};
438
439	static int ak4613_resume(struct snd_soc_codec *codec)
440	{
441	struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
442
443	regcache_mark_dirty(regmap);
444	return regcache_sync(regmap);
445	}
446
447	static struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
448	.resume = ak4613_resume,
449	.set_bias_level = ak4613_set_bias_level,
e3a4d958 KM	450	.controls = ak4613_snd_controls,
e3a4d958 KM	451	.num_controls = ARRAY_SIZE(ak4613_snd_controls),
b0757062 KM	452	.dapm_widgets = ak4613_dapm_widgets,
	453	.num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets),
	454	.dapm_routes = ak4613_intercon,
	455	.num_dapm_routes = ARRAY_SIZE(ak4613_intercon),
	456	};
	457
a3af0c65 KM	458	static void ak4613_parse_of(struct ak4613_priv *priv,
	459	struct device *dev)
	460	{
	461	struct device_node *np = dev->of_node;
	462	char prop[32];
	463	int i;
	464
	465	/* Input 1 - 2 */
	466	for (i = 0; i < 2; i++) {
5547ba61	467	snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1);
a3af0c65 KM	468	if (!of_get_property(np, prop, NULL))
	469	priv->ic \|= 1 << i;
	470	}
	471
	472	/* Output 1 - 6 */
	473	for (i = 0; i < 6; i++) {
5547ba61	474	snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1);
a3af0c65 KM	475	if (!of_get_property(np, prop, NULL))
	476	priv->oc \|= 1 << i;
	477	}
	478	}
	479
b0757062 KM	480	static int ak4613_i2c_probe(struct i2c_client *i2c,
	481	const struct i2c_device_id *id)
	482	{
	483	struct device *dev = &i2c->dev;
	484	struct device_node *np = dev->of_node;
	485	const struct regmap_config *regmap_cfg;
	486	struct regmap *regmap;
	487	struct ak4613_priv *priv;
	488
	489	regmap_cfg = NULL;
	490	if (np) {
	491	const struct of_device_id *of_id;
	492
	493	of_id = of_match_device(ak4613_of_match, dev);
	494	if (of_id)
	495	regmap_cfg = of_id->data;
	496	} else {
	497	regmap_cfg = (const struct regmap_config *)id->driver_data;
	498	}
	499
	500	if (!regmap_cfg)
	501	return -EINVAL;
	502
	503	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	504	if (!priv)
	505	return -ENOMEM;
	506
a3af0c65 KM	507	ak4613_parse_of(priv, dev);
a3af0c65 KM	508
35299f17	509	priv->iface = NULL;
b0757062 KM	510	priv->cnt = 0;
	511
	512	mutex_init(&priv->lock);
	513
	514	i2c_set_clientdata(i2c, priv);
	515
	516	regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
	517	if (IS_ERR(regmap))
	518	return PTR_ERR(regmap);
	519
	520	return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
	521	&ak4613_dai, 1);
	522	}
	523
	524	static int ak4613_i2c_remove(struct i2c_client *client)
	525	{
	526	snd_soc_unregister_codec(&client->dev);
	527	return 0;
	528	}
	529
	530	static struct i2c_driver ak4613_i2c_driver = {
	531	.driver = {
	532	.name = "ak4613-codec",
	533	.owner = THIS_MODULE,
	534	.of_match_table = ak4613_of_match,
	535	},
	536	.probe = ak4613_i2c_probe,
	537	.remove = ak4613_i2c_remove,
	538	.id_table = ak4613_i2c_id,
	539	};
	540
	541	module_i2c_driver(ak4613_i2c_driver);
	542
	543	MODULE_DESCRIPTION("Soc AK4613 driver");
	544	MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
	545	MODULE_LICENSE("GPL v2");