[linux-2.6-block.git] / sound / soc / codecs / ak4535.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ak4535.c  --  AK4535 ALSA Soc Audio driver
 *
 * Copyright 2005 Openedhand Ltd.
 *
 * Author: Richard Purdie <richard@openedhand.com>
 *
 * Based on wm8753.c by Liam Girdwood
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>

#include "ak4535.h"

/* codec private data */
struct ak4535_priv {
	struct regmap *regmap;
	unsigned int sysclk;
};

/*
 * ak4535 register cache
 */
static const struct reg_default ak4535_reg_defaults[] = {
	{ 0, 0x00 },
	{ 1, 0x80 },
	{ 2, 0x00 },
	{ 3, 0x03 },
	{ 4, 0x02 },
	{ 5, 0x00 },
	{ 6, 0x11 },
	{ 7, 0x01 },
	{ 8, 0x00 },
	{ 9, 0x40 },
	{ 10, 0x36 },
	{ 11, 0x10 },
	{ 12, 0x00 },
	{ 13, 0x00 },
	{ 14, 0x57 },
};

static bool ak4535_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case AK4535_STATUS:
		return true;
	default:
		return false;
	}
}

static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"};
static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"};
static const char *ak4535_hp_out[] = {"Stereo", "Mono"};
static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"};
static const char *ak4535_mic_select[] = {"Internal", "External"};

static const struct soc_enum ak4535_enum[] = {
	SOC_ENUM_SINGLE(AK4535_SIG1, 7, 2, ak4535_mono_gain),
	SOC_ENUM_SINGLE(AK4535_SIG1, 6, 2, ak4535_mono_out),
	SOC_ENUM_SINGLE(AK4535_MODE2, 2, 2, ak4535_hp_out),
	SOC_ENUM_SINGLE(AK4535_DAC, 0, 4, ak4535_deemp),
	SOC_ENUM_SINGLE(AK4535_MIC, 1, 2, ak4535_mic_select),
};

static const struct snd_kcontrol_new ak4535_snd_controls[] = {
	SOC_SINGLE("ALC2 Switch", AK4535_SIG1, 1, 1, 0),
	SOC_ENUM("Mono 1 Output", ak4535_enum[1]),
	SOC_ENUM("Mono 1 Gain", ak4535_enum[0]),
	SOC_ENUM("Headphone Output", ak4535_enum[2]),
	SOC_ENUM("Playback Deemphasis", ak4535_enum[3]),
	SOC_SINGLE("Bass Volume", AK4535_DAC, 2, 3, 0),
	SOC_SINGLE("Mic Boost (+20dB) Switch", AK4535_MIC, 0, 1, 0),
	SOC_ENUM("Mic Select", ak4535_enum[4]),
	SOC_SINGLE("ALC Operation Time", AK4535_TIMER, 0, 3, 0),
	SOC_SINGLE("ALC Recovery Time", AK4535_TIMER, 2, 3, 0),
	SOC_SINGLE("ALC ZC Time", AK4535_TIMER, 4, 3, 0),
	SOC_SINGLE("ALC 1 Switch", AK4535_ALC1, 5, 1, 0),
	SOC_SINGLE("ALC 2 Switch", AK4535_ALC1, 6, 1, 0),
	SOC_SINGLE("ALC Volume", AK4535_ALC2, 0, 127, 0),
	SOC_SINGLE("Capture Volume", AK4535_PGA, 0, 127, 0),
	SOC_SINGLE("Left Playback Volume", AK4535_LATT, 0, 127, 1),
	SOC_SINGLE("Right Playback Volume", AK4535_RATT, 0, 127, 1),
	SOC_SINGLE("AUX Bypass Volume", AK4535_VOL, 0, 15, 0),
	SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0),
};

/* Mono 1 Mixer */
static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = {
	SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0),
	SOC_DAPM_SINGLE("Mono Playback Switch", AK4535_SIG1, 5, 1, 0),
};

/* Stereo Mixer */
static const struct snd_kcontrol_new ak4535_stereo_mixer_controls[] = {
	SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG2, 4, 1, 0),
	SOC_DAPM_SINGLE("Playback Switch", AK4535_SIG2, 7, 1, 0),
	SOC_DAPM_SINGLE("Aux Bypass Switch", AK4535_SIG2, 5, 1, 0),
};

/* Input Mixer */
static const struct snd_kcontrol_new ak4535_input_mixer_controls[] = {
	SOC_DAPM_SINGLE("Mic Capture Switch", AK4535_MIC, 2, 1, 0),
	SOC_DAPM_SINGLE("Aux Capture Switch", AK4535_MIC, 5, 1, 0),
};

/* Input mux */
static const struct snd_kcontrol_new ak4535_input_mux_control =
	SOC_DAPM_ENUM("Input Select", ak4535_enum[4]);

/* HP L switch */
static const struct snd_kcontrol_new ak4535_hpl_control =
	SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1);

/* HP R switch */
static const struct snd_kcontrol_new ak4535_hpr_control =
	SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1);

/* mono 2 switch */
static const struct snd_kcontrol_new ak4535_mono2_control =
	SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0);

/* Line out switch */
static const struct snd_kcontrol_new ak4535_line_control =
	SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0);

/* ak4535 dapm widgets */
static const struct snd_soc_dapm_widget ak4535_dapm_widgets[] = {
	SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0,
		&ak4535_stereo_mixer_controls[0],
		ARRAY_SIZE(ak4535_stereo_mixer_controls)),
	SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0,
		&ak4535_mono1_mixer_controls[0],
		ARRAY_SIZE(ak4535_mono1_mixer_controls)),
	SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0,
		&ak4535_input_mixer_controls[0],
		ARRAY_SIZE(ak4535_input_mixer_controls)),
	SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
		&ak4535_input_mux_control),
	SND_SOC_DAPM_DAC("DAC", "Playback", AK4535_PM2, 0, 0),
	SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0,
		&ak4535_mono2_control),
	/* speaker powersave bit */
	SND_SOC_DAPM_PGA("Speaker Enable", AK4535_MODE2, 0, 0, NULL, 0),
	SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0,
		&ak4535_line_control),
	SND_SOC_DAPM_SWITCH("Left HP Enable", SND_SOC_NOPM, 0, 0,
		&ak4535_hpl_control),
	SND_SOC_DAPM_SWITCH("Right HP Enable", SND_SOC_NOPM, 0, 0,
		&ak4535_hpr_control),
	SND_SOC_DAPM_OUTPUT("LOUT"),
	SND_SOC_DAPM_OUTPUT("HPL"),
	SND_SOC_DAPM_OUTPUT("ROUT"),
	SND_SOC_DAPM_OUTPUT("HPR"),
	SND_SOC_DAPM_OUTPUT("SPP"),
	SND_SOC_DAPM_OUTPUT("SPN"),
	SND_SOC_DAPM_OUTPUT("MOUT1"),
	SND_SOC_DAPM_OUTPUT("MOUT2"),
	SND_SOC_DAPM_OUTPUT("MICOUT"),
	SND_SOC_DAPM_ADC("ADC", "Capture", AK4535_PM1, 0, 0),
	SND_SOC_DAPM_PGA("Spk Amp", AK4535_PM2, 3, 0, NULL, 0),
	SND_SOC_DAPM_PGA("HP R Amp", AK4535_PM2, 1, 0, NULL, 0),
	SND_SOC_DAPM_PGA("HP L Amp", AK4535_PM2, 2, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Mic", AK4535_PM1, 1, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Line Out", AK4535_PM1, 4, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Mono Out", AK4535_PM1, 3, 0, NULL, 0),
	SND_SOC_DAPM_PGA("AUX In", AK4535_PM1, 2, 0, NULL, 0),

	SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4535_MIC, 3, 0),
	SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4535_MIC, 4, 0),
	SND_SOC_DAPM_INPUT("MICIN"),
	SND_SOC_DAPM_INPUT("MICEXT"),
	SND_SOC_DAPM_INPUT("AUX"),
	SND_SOC_DAPM_INPUT("MIN"),
	SND_SOC_DAPM_INPUT("AIN"),
};

static const struct snd_soc_dapm_route ak4535_audio_map[] = {
	/*stereo mixer */
	{"Stereo Mixer", "Playback Switch", "DAC"},
	{"Stereo Mixer", "Mic Sidetone Switch", "Mic"},
	{"Stereo Mixer", "Aux Bypass Switch", "AUX In"},

	/* mono1 mixer */
	{"Mono1 Mixer", "Mic Sidetone Switch", "Mic"},
	{"Mono1 Mixer", "Mono Playback Switch", "DAC"},

	/* Mic */
	{"Mic", NULL, "AIN"},
	{"Input Mux", "Internal", "Mic Int Bias"},
	{"Input Mux", "External", "Mic Ext Bias"},
	{"Mic Int Bias", NULL, "MICIN"},
	{"Mic Ext Bias", NULL, "MICEXT"},
	{"MICOUT", NULL, "Input Mux"},

	/* line out */
	{"LOUT", NULL, "Line Out Enable"},
	{"ROUT", NULL, "Line Out Enable"},
	{"Line Out Enable", "Switch", "Line Out"},
	{"Line Out", NULL, "Stereo Mixer"},

	/* mono1 out */
	{"MOUT1", NULL, "Mono Out"},
	{"Mono Out", NULL, "Mono1 Mixer"},

	/* left HP */
	{"HPL", NULL, "Left HP Enable"},
	{"Left HP Enable", "Switch", "HP L Amp"},
	{"HP L Amp", NULL, "Stereo Mixer"},

	/* right HP */
	{"HPR", NULL, "Right HP Enable"},
	{"Right HP Enable", "Switch", "HP R Amp"},
	{"HP R Amp", NULL, "Stereo Mixer"},

	/* speaker */
	{"SPP", NULL, "Speaker Enable"},
	{"SPN", NULL, "Speaker Enable"},
	{"Speaker Enable", "Switch", "Spk Amp"},
	{"Spk Amp", NULL, "MIN"},

	/* mono 2 */
	{"MOUT2", NULL, "Mono 2 Enable"},
	{"Mono 2 Enable", "Switch", "Stereo Mixer"},

	/* Aux In */
	{"Aux In", NULL, "AUX"},

	/* ADC */
	{"ADC", NULL, "Input Mixer"},
	{"Input Mixer", "Mic Capture Switch", "Mic"},
	{"Input Mixer", "Aux Capture Switch", "Aux In"},
};

static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_component *component = codec_dai->component;
	struct ak4535_priv *ak4535 = snd_soc_component_get_drvdata(component);

	ak4535->sysclk = freq;
	return 0;
}

static int ak4535_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{
	struct snd_soc_component *component = dai->component;
	struct ak4535_priv *ak4535 = snd_soc_component_get_drvdata(component);
	u8 mode2 = snd_soc_component_read(component, AK4535_MODE2) & ~(0x3 << 5);
	int rate = params_rate(params), fs = 256;

	if (rate)
		fs = ak4535->sysclk / rate;

	/* set fs */
	switch (fs) {
	case 1024:
		mode2 |= (0x2 << 5);
		break;
	case 512:
		mode2 |= (0x1 << 5);
		break;
	case 256:
		break;
	}

	/* set rate */
	snd_soc_component_write(component, AK4535_MODE2, mode2);
	return 0;
}

static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_component *component = codec_dai->component;
	u8 mode1 = 0;

	/* interface format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		mode1 = 0x0002;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		mode1 = 0x0001;
		break;
	default:
		return -EINVAL;
	}

	/* use 32 fs for BCLK to save power */
	mode1 |= 0x4;

	snd_soc_component_write(component, AK4535_MODE1, mode1);
	return 0;
}

static int ak4535_mute(struct snd_soc_dai *dai, int mute, int direction)
{
	struct snd_soc_component *component = dai->component;
	u16 mute_reg = snd_soc_component_read(component, AK4535_DAC);

	if (!mute)
		snd_soc_component_write(component, AK4535_DAC, mute_reg & ~0x20);
	else
		snd_soc_component_write(component, AK4535_DAC, mute_reg | 0x20);
	return 0;
}

static int ak4535_set_bias_level(struct snd_soc_component *component,
	enum snd_soc_bias_level level)
{
	switch (level) {
	case SND_SOC_BIAS_ON:
		snd_soc_component_update_bits(component, AK4535_DAC, 0x20, 0);
		break;
	case SND_SOC_BIAS_PREPARE:
		snd_soc_component_update_bits(component, AK4535_DAC, 0x20, 0x20);
		break;
	case SND_SOC_BIAS_STANDBY:
		snd_soc_component_update_bits(component, AK4535_PM1, 0x80, 0x80);
		snd_soc_component_update_bits(component, AK4535_PM2, 0x80, 0);
		break;
	case SND_SOC_BIAS_OFF:
		snd_soc_component_update_bits(component, AK4535_PM1, 0x80, 0);
		break;
	}
	return 0;
}

#define AK4535_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)

static const struct snd_soc_dai_ops ak4535_dai_ops = {
	.hw_params	= ak4535_hw_params,
	.set_fmt	= ak4535_set_dai_fmt,
	.mute_stream	= ak4535_mute,
	.set_sysclk	= ak4535_set_dai_sysclk,
	.no_capture_mute = 1,
};

static struct snd_soc_dai_driver ak4535_dai = {
	.name = "ak4535-hifi",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = AK4535_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.capture = {
		.stream_name = "Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = AK4535_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.ops = &ak4535_dai_ops,
};

static int ak4535_resume(struct snd_soc_component *component)
{
	snd_soc_component_cache_sync(component);
	return 0;
}

static const struct regmap_config ak4535_regmap = {
	.reg_bits = 8,
	.val_bits = 8,

	.max_register = AK4535_STATUS,
	.volatile_reg = ak4535_volatile,

	.cache_type = REGCACHE_RBTREE,
	.reg_defaults = ak4535_reg_defaults,
	.num_reg_defaults = ARRAY_SIZE(ak4535_reg_defaults),
};

static const struct snd_soc_component_driver soc_component_dev_ak4535 = {
	.resume			= ak4535_resume,
	.set_bias_level		= ak4535_set_bias_level,
	.controls		= ak4535_snd_controls,
	.num_controls		= ARRAY_SIZE(ak4535_snd_controls),
	.dapm_widgets		= ak4535_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(ak4535_dapm_widgets),
	.dapm_routes		= ak4535_audio_map,
	.num_dapm_routes	= ARRAY_SIZE(ak4535_audio_map),
	.suspend_bias_off	= 1,
	.idle_bias_on		= 1,
	.use_pmdown_time	= 1,
	.endianness		= 1,
};

static int ak4535_i2c_probe(struct i2c_client *i2c)
{
	struct ak4535_priv *ak4535;
	int ret;

	ak4535 = devm_kzalloc(&i2c->dev, sizeof(struct ak4535_priv),
			      GFP_KERNEL);
	if (ak4535 == NULL)
		return -ENOMEM;

	ak4535->regmap = devm_regmap_init_i2c(i2c, &ak4535_regmap);
	if (IS_ERR(ak4535->regmap)) {
		ret = PTR_ERR(ak4535->regmap);
		dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
		return ret;
	}

	i2c_set_clientdata(i2c, ak4535);

	ret = devm_snd_soc_register_component(&i2c->dev,
			&soc_component_dev_ak4535, &ak4535_dai, 1);

	return ret;
}

static const struct i2c_device_id ak4535_i2c_id[] = {
	{ "ak4535" },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id);

static struct i2c_driver ak4535_i2c_driver = {
	.driver = {
		.name = "ak4535",
	},
	.probe = ak4535_i2c_probe,
	.id_table = ak4535_i2c_id,
};

module_i2c_driver(ak4535_i2c_driver);

MODULE_DESCRIPTION("Soc AK4535 driver");
MODULE_AUTHOR("Richard Purdie");
MODULE_LICENSE("GPL");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
796d2ca8 RP	2	/*
	3	* ak4535.c -- AK4535 ALSA Soc Audio driver
	4	*
	5	* Copyright 2005 Openedhand Ltd.
	6	*
	7	* Author: Richard Purdie <richard@openedhand.com>
	8	*
	9	* Based on wm8753.c by Liam Girdwood
796d2ca8 RP	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/moduleparam.h>
	14	#include <linux/init.h>
	15	#include <linux/delay.h>
	16	#include <linux/pm.h>
	17	#include <linux/i2c.h>
a1fa9213	18	#include <linux/regmap.h>
5a0e3ad6	19	#include <linux/slab.h>
796d2ca8 RP	20	#include <sound/core.h>
	21	#include <sound/pcm.h>
	22	#include <sound/pcm_params.h>
	23	#include <sound/soc.h>
796d2ca8 RP	24	#include <sound/initval.h>
	25
	26	#include "ak4535.h"
	27
796d2ca8 RP	28	/* codec private data */
796d2ca8 RP	29	struct ak4535_priv {
a1fa9213	30	struct regmap *regmap;
796d2ca8 RP	31	unsigned int sysclk;
	32	};
	33
	34	/*
	35	* ak4535 register cache
	36	*/
a1fa9213 MB	37	static const struct reg_default ak4535_reg_defaults[] = {
	38	{ 0, 0x00 },
	39	{ 1, 0x80 },
	40	{ 2, 0x00 },
	41	{ 3, 0x03 },
	42	{ 4, 0x02 },
	43	{ 5, 0x00 },
	44	{ 6, 0x11 },
	45	{ 7, 0x01 },
	46	{ 8, 0x00 },
	47	{ 9, 0x40 },
	48	{ 10, 0x36 },
	49	{ 11, 0x10 },
	50	{ 12, 0x00 },
	51	{ 13, 0x00 },
	52	{ 14, 0x57 },
796d2ca8 RP	53	};
796d2ca8 RP	54
a1fa9213 MB	55	static bool ak4535_volatile(struct device *dev, unsigned int reg)
	56	{
	57	switch (reg) {
	58	case AK4535_STATUS:
	59	return true;
	60	default:
	61	return false;
	62	}
	63	}
	64
796d2ca8 RP	65	static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"};
	66	static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"};
	67	static const char *ak4535_hp_out[] = {"Stereo", "Mono"};
	68	static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"};
	69	static const char *ak4535_mic_select[] = {"Internal", "External"};
	70
	71	static const struct soc_enum ak4535_enum[] = {
	72	SOC_ENUM_SINGLE(AK4535_SIG1, 7, 2, ak4535_mono_gain),
	73	SOC_ENUM_SINGLE(AK4535_SIG1, 6, 2, ak4535_mono_out),
	74	SOC_ENUM_SINGLE(AK4535_MODE2, 2, 2, ak4535_hp_out),
	75	SOC_ENUM_SINGLE(AK4535_DAC, 0, 4, ak4535_deemp),
	76	SOC_ENUM_SINGLE(AK4535_MIC, 1, 2, ak4535_mic_select),
	77	};
	78
	79	static const struct snd_kcontrol_new ak4535_snd_controls[] = {
	80	SOC_SINGLE("ALC2 Switch", AK4535_SIG1, 1, 1, 0),
	81	SOC_ENUM("Mono 1 Output", ak4535_enum[1]),
	82	SOC_ENUM("Mono 1 Gain", ak4535_enum[0]),
	83	SOC_ENUM("Headphone Output", ak4535_enum[2]),
	84	SOC_ENUM("Playback Deemphasis", ak4535_enum[3]),
	85	SOC_SINGLE("Bass Volume", AK4535_DAC, 2, 3, 0),
	86	SOC_SINGLE("Mic Boost (+20dB) Switch", AK4535_MIC, 0, 1, 0),
	87	SOC_ENUM("Mic Select", ak4535_enum[4]),
	88	SOC_SINGLE("ALC Operation Time", AK4535_TIMER, 0, 3, 0),
	89	SOC_SINGLE("ALC Recovery Time", AK4535_TIMER, 2, 3, 0),
	90	SOC_SINGLE("ALC ZC Time", AK4535_TIMER, 4, 3, 0),
	91	SOC_SINGLE("ALC 1 Switch", AK4535_ALC1, 5, 1, 0),
	92	SOC_SINGLE("ALC 2 Switch", AK4535_ALC1, 6, 1, 0),
	93	SOC_SINGLE("ALC Volume", AK4535_ALC2, 0, 127, 0),
	94	SOC_SINGLE("Capture Volume", AK4535_PGA, 0, 127, 0),
	95	SOC_SINGLE("Left Playback Volume", AK4535_LATT, 0, 127, 1),
	96	SOC_SINGLE("Right Playback Volume", AK4535_RATT, 0, 127, 1),
	97	SOC_SINGLE("AUX Bypass Volume", AK4535_VOL, 0, 15, 0),
	98	SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0),
	99	};
	100
796d2ca8 RP	101	/* Mono 1 Mixer */
	102	static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = {
	103	SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0),
	104	SOC_DAPM_SINGLE("Mono Playback Switch", AK4535_SIG1, 5, 1, 0),
	105	};
	106
	107	/* Stereo Mixer */
	108	static const struct snd_kcontrol_new ak4535_stereo_mixer_controls[] = {
	109	SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG2, 4, 1, 0),
	110	SOC_DAPM_SINGLE("Playback Switch", AK4535_SIG2, 7, 1, 0),
	111	SOC_DAPM_SINGLE("Aux Bypass Switch", AK4535_SIG2, 5, 1, 0),
	112	};
	113
	114	/* Input Mixer */
	115	static const struct snd_kcontrol_new ak4535_input_mixer_controls[] = {
	116	SOC_DAPM_SINGLE("Mic Capture Switch", AK4535_MIC, 2, 1, 0),
	117	SOC_DAPM_SINGLE("Aux Capture Switch", AK4535_MIC, 5, 1, 0),
	118	};
	119
	120	/* Input mux */
	121	static const struct snd_kcontrol_new ak4535_input_mux_control =
	122	SOC_DAPM_ENUM("Input Select", ak4535_enum[4]);
	123
	124	/* HP L switch */
	125	static const struct snd_kcontrol_new ak4535_hpl_control =
	126	SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1);
	127
	128	/* HP R switch */
	129	static const struct snd_kcontrol_new ak4535_hpr_control =
	130	SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1);
	131
	132	/* mono 2 switch */
	133	static const struct snd_kcontrol_new ak4535_mono2_control =
	134	SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0);
	135
	136	/* Line out switch */
	137	static const struct snd_kcontrol_new ak4535_line_control =
	138	SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0);
	139
	140	/* ak4535 dapm widgets */
	141	static const struct snd_soc_dapm_widget ak4535_dapm_widgets[] = {
	142	SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0,
	143	&ak4535_stereo_mixer_controls[0],
	144	ARRAY_SIZE(ak4535_stereo_mixer_controls)),
	145	SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0,
	146	&ak4535_mono1_mixer_controls[0],
	147	ARRAY_SIZE(ak4535_mono1_mixer_controls)),
	148	SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0,
	149	&ak4535_input_mixer_controls[0],
	150	ARRAY_SIZE(ak4535_input_mixer_controls)),
	151	SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
	152	&ak4535_input_mux_control),
	153	SND_SOC_DAPM_DAC("DAC", "Playback", AK4535_PM2, 0, 0),
	154	SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0,
	155	&ak4535_mono2_control),
	156	/* speaker powersave bit */
	157	SND_SOC_DAPM_PGA("Speaker Enable", AK4535_MODE2, 0, 0, NULL, 0),
	158	SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0,
	159	&ak4535_line_control),
	160	SND_SOC_DAPM_SWITCH("Left HP Enable", SND_SOC_NOPM, 0, 0,
	161	&ak4535_hpl_control),
	162	SND_SOC_DAPM_SWITCH("Right HP Enable", SND_SOC_NOPM, 0, 0,
	163	&ak4535_hpr_control),
	164	SND_SOC_DAPM_OUTPUT("LOUT"),
165	SND_SOC_DAPM_OUTPUT("HPL"),
166	SND_SOC_DAPM_OUTPUT("ROUT"),
167	SND_SOC_DAPM_OUTPUT("HPR"),
168	SND_SOC_DAPM_OUTPUT("SPP"),
169	SND_SOC_DAPM_OUTPUT("SPN"),
170	SND_SOC_DAPM_OUTPUT("MOUT1"),
171	SND_SOC_DAPM_OUTPUT("MOUT2"),
172	SND_SOC_DAPM_OUTPUT("MICOUT"),
173	SND_SOC_DAPM_ADC("ADC", "Capture", AK4535_PM1, 0, 0),
174	SND_SOC_DAPM_PGA("Spk Amp", AK4535_PM2, 3, 0, NULL, 0),
175	SND_SOC_DAPM_PGA("HP R Amp", AK4535_PM2, 1, 0, NULL, 0),
176	SND_SOC_DAPM_PGA("HP L Amp", AK4535_PM2, 2, 0, NULL, 0),
177	SND_SOC_DAPM_PGA("Mic", AK4535_PM1, 1, 0, NULL, 0),
178	SND_SOC_DAPM_PGA("Line Out", AK4535_PM1, 4, 0, NULL, 0),
179	SND_SOC_DAPM_PGA("Mono Out", AK4535_PM1, 3, 0, NULL, 0),
180	SND_SOC_DAPM_PGA("AUX In", AK4535_PM1, 2, 0, NULL, 0),
181
182	SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4535_MIC, 3, 0),
183	SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4535_MIC, 4, 0),
184	SND_SOC_DAPM_INPUT("MICIN"),
185	SND_SOC_DAPM_INPUT("MICEXT"),
186	SND_SOC_DAPM_INPUT("AUX"),
187	SND_SOC_DAPM_INPUT("MIN"),
188	SND_SOC_DAPM_INPUT("AIN"),
189	};
190
b63c963d	191	static const struct snd_soc_dapm_route ak4535_audio_map[] = {
796d2ca8 RP	192	/stereo mixer /
	193	{"Stereo Mixer", "Playback Switch", "DAC"},
	194	{"Stereo Mixer", "Mic Sidetone Switch", "Mic"},
	195	{"Stereo Mixer", "Aux Bypass Switch", "AUX In"},
	196
	197	/* mono1 mixer */
	198	{"Mono1 Mixer", "Mic Sidetone Switch", "Mic"},
	199	{"Mono1 Mixer", "Mono Playback Switch", "DAC"},
	200
	201	/* Mic */
	202	{"Mic", NULL, "AIN"},
	203	{"Input Mux", "Internal", "Mic Int Bias"},
	204	{"Input Mux", "External", "Mic Ext Bias"},
	205	{"Mic Int Bias", NULL, "MICIN"},
	206	{"Mic Ext Bias", NULL, "MICEXT"},
	207	{"MICOUT", NULL, "Input Mux"},
	208
	209	/* line out */
	210	{"LOUT", NULL, "Line Out Enable"},
	211	{"ROUT", NULL, "Line Out Enable"},
	212	{"Line Out Enable", "Switch", "Line Out"},
	213	{"Line Out", NULL, "Stereo Mixer"},
	214
	215	/* mono1 out */
	216	{"MOUT1", NULL, "Mono Out"},
	217	{"Mono Out", NULL, "Mono1 Mixer"},
	218
	219	/* left HP */
	220	{"HPL", NULL, "Left HP Enable"},
	221	{"Left HP Enable", "Switch", "HP L Amp"},
	222	{"HP L Amp", NULL, "Stereo Mixer"},
	223
	224	/* right HP */
	225	{"HPR", NULL, "Right HP Enable"},
	226	{"Right HP Enable", "Switch", "HP R Amp"},
	227	{"HP R Amp", NULL, "Stereo Mixer"},
	228
	229	/* speaker */
	230	{"SPP", NULL, "Speaker Enable"},
	231	{"SPN", NULL, "Speaker Enable"},
	232	{"Speaker Enable", "Switch", "Spk Amp"},
	233	{"Spk Amp", NULL, "MIN"},
	234
	235	/* mono 2 */
	236	{"MOUT2", NULL, "Mono 2 Enable"},
	237	{"Mono 2 Enable", "Switch", "Stereo Mixer"},
	238
	239	/* Aux In */
	240	{"Aux In", NULL, "AUX"},
	241
	242	/* ADC */
	243	{"ADC", NULL, "Input Mixer"},
	244	{"Input Mixer", "Mic Capture Switch", "Mic"},
	245	{"Input Mixer", "Aux Capture Switch", "Aux In"},
	246	};
	247
e550e17f	248	static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai,
796d2ca8 RP	249	int clk_id, unsigned int freq, int dir)
796d2ca8 RP	250	{
d229c0be KM	251	struct snd_soc_component *component = codec_dai->component;
d229c0be KM	252	struct ak4535_priv *ak4535 = snd_soc_component_get_drvdata(component);
796d2ca8 RP	253
	254	ak4535->sysclk = freq;
	255	return 0;
	256	}
	257
	258	static int ak4535_hw_params(struct snd_pcm_substream *substream,
dee89c4d MB	259	struct snd_pcm_hw_params *params,
dee89c4d MB	260	struct snd_soc_dai *dai)
796d2ca8	261	{
d229c0be KM	262	struct snd_soc_component *component = dai->component;
d229c0be KM	263	struct ak4535_priv *ak4535 = snd_soc_component_get_drvdata(component);
8a6fc33b	264	u8 mode2 = snd_soc_component_read(component, AK4535_MODE2) & ~(0x3 << 5);
796d2ca8 RP	265	int rate = params_rate(params), fs = 256;
	266
	267	if (rate)
	268	fs = ak4535->sysclk / rate;
	269
	270	/* set fs */
	271	switch (fs) {
	272	case 1024:
	273	mode2 \|= (0x2 << 5);
	274	break;
	275	case 512:
	276	mode2 \|= (0x1 << 5);
	277	break;
	278	case 256:
	279	break;
	280	}
	281
	282	/* set rate */
d229c0be	283	snd_soc_component_write(component, AK4535_MODE2, mode2);
796d2ca8 RP	284	return 0;
	285	}
	286
e550e17f	287	static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai,
796d2ca8 RP	288	unsigned int fmt)
796d2ca8 RP	289	{
d229c0be	290	struct snd_soc_component *component = codec_dai->component;
796d2ca8 RP	291	u8 mode1 = 0;
	292
	293	/* interface format */
	294	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	295	case SND_SOC_DAIFMT_I2S:
	296	mode1 = 0x0002;
	297	break;
	298	case SND_SOC_DAIFMT_LEFT_J:
	299	mode1 = 0x0001;
	300	break;
	301	default:
	302	return -EINVAL;
	303	}
	304
	305	/* use 32 fs for BCLK to save power */
	306	mode1 \|= 0x4;
	307
d229c0be	308	snd_soc_component_write(component, AK4535_MODE1, mode1);
796d2ca8 RP	309	return 0;
	310	}
	311
50891431	312	static int ak4535_mute(struct snd_soc_dai *dai, int mute, int direction)
796d2ca8	313	{
d229c0be	314	struct snd_soc_component *component = dai->component;
8a6fc33b	315	u16 mute_reg = snd_soc_component_read(component, AK4535_DAC);
50891431	316
796d2ca8	317	if (!mute)
d229c0be	318	snd_soc_component_write(component, AK4535_DAC, mute_reg & ~0x20);
796d2ca8	319	else
d229c0be	320	snd_soc_component_write(component, AK4535_DAC, mute_reg \| 0x20);
796d2ca8 RP	321	return 0;
	322	}
	323
d229c0be	324	static int ak4535_set_bias_level(struct snd_soc_component *component,
796d2ca8 RP	325	enum snd_soc_bias_level level)
796d2ca8 RP	326	{
796d2ca8 RP	327	switch (level) {
796d2ca8 RP	328	case SND_SOC_BIAS_ON:
d229c0be	329	snd_soc_component_update_bits(component, AK4535_DAC, 0x20, 0);
796d2ca8 RP	330	break;
796d2ca8 RP	331	case SND_SOC_BIAS_PREPARE:
d229c0be	332	snd_soc_component_update_bits(component, AK4535_DAC, 0x20, 0x20);
796d2ca8 RP	333	break;
796d2ca8 RP	334	case SND_SOC_BIAS_STANDBY:
d229c0be KM	335	snd_soc_component_update_bits(component, AK4535_PM1, 0x80, 0x80);
d229c0be KM	336	snd_soc_component_update_bits(component, AK4535_PM2, 0x80, 0);
796d2ca8 RP	337	break;
796d2ca8 RP	338	case SND_SOC_BIAS_OFF:
d229c0be	339	snd_soc_component_update_bits(component, AK4535_PM1, 0x80, 0);
796d2ca8 RP	340	break;
796d2ca8 RP	341	}
796d2ca8 RP	342	return 0;
	343	}
	344
	345	#define AK4535_RATES (SNDRV_PCM_RATE_8000 \| SNDRV_PCM_RATE_11025 \|\
	346	SNDRV_PCM_RATE_16000 \| SNDRV_PCM_RATE_22050 \|\
	347	SNDRV_PCM_RATE_44100 \| SNDRV_PCM_RATE_48000)
	348
85e7652d	349	static const struct snd_soc_dai_ops ak4535_dai_ops = {
6335d055 EM	350	.hw_params = ak4535_hw_params,
6335d055 EM	351	.set_fmt = ak4535_set_dai_fmt,
50891431	352	.mute_stream = ak4535_mute,
6335d055	353	.set_sysclk = ak4535_set_dai_sysclk,
50891431	354	.no_capture_mute = 1,
6335d055 EM	355	};
6335d055 EM	356
f0fba2ad LG	357	static struct snd_soc_dai_driver ak4535_dai = {
f0fba2ad LG	358	.name = "ak4535-hifi",
796d2ca8 RP	359	.playback = {
	360	.stream_name = "Playback",
	361	.channels_min = 1,
	362	.channels_max = 2,
	363	.rates = AK4535_RATES,
	364	.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	365	.capture = {
	366	.stream_name = "Capture",
	367	.channels_min = 1,
	368	.channels_max = 2,
	369	.rates = AK4535_RATES,
	370	.formats = SNDRV_PCM_FMTBIT_S16_LE,},
6335d055	371	.ops = &ak4535_dai_ops,
796d2ca8	372	};
796d2ca8	373
d229c0be	374	static int ak4535_resume(struct snd_soc_component *component)
796d2ca8	375	{
d229c0be	376	snd_soc_component_cache_sync(component);
796d2ca8 RP	377	return 0;
	378	}
	379
a1fa9213 MB	380	static const struct regmap_config ak4535_regmap = {
	381	.reg_bits = 8,
	382	.val_bits = 8,
	383
	384	.max_register = AK4535_STATUS,
	385	.volatile_reg = ak4535_volatile,
	386
	387	.cache_type = REGCACHE_RBTREE,
	388	.reg_defaults = ak4535_reg_defaults,
	389	.num_reg_defaults = ARRAY_SIZE(ak4535_reg_defaults),
	390	};
	391
d229c0be KM	392	static const struct snd_soc_component_driver soc_component_dev_ak4535 = {
	393	.resume = ak4535_resume,
	394	.set_bias_level = ak4535_set_bias_level,
	395	.controls = ak4535_snd_controls,
	396	.num_controls = ARRAY_SIZE(ak4535_snd_controls),
	397	.dapm_widgets = ak4535_dapm_widgets,
	398	.num_dapm_widgets = ARRAY_SIZE(ak4535_dapm_widgets),
	399	.dapm_routes = ak4535_audio_map,
	400	.num_dapm_routes = ARRAY_SIZE(ak4535_audio_map),
	401	.suspend_bias_off = 1,
	402	.idle_bias_on = 1,
	403	.use_pmdown_time = 1,
	404	.endianness = 1,
f0fba2ad	405	};
796d2ca8	406
a1111048	407	static int ak4535_i2c_probe(struct i2c_client *i2c)
796d2ca8	408	{
f0fba2ad	409	struct ak4535_priv *ak4535;
796d2ca8 RP	410	int ret;
796d2ca8 RP	411
7246492d AL	412	ak4535 = devm_kzalloc(&i2c->dev, sizeof(struct ak4535_priv),
7246492d AL	413	GFP_KERNEL);
f0fba2ad LG	414	if (ak4535 == NULL)
f0fba2ad LG	415	return -ENOMEM;
796d2ca8	416
77d19b10	417	ak4535->regmap = devm_regmap_init_i2c(i2c, &ak4535_regmap);
a1fa9213 MB	418	if (IS_ERR(ak4535->regmap)) {
	419	ret = PTR_ERR(ak4535->regmap);
	420	dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
	421	return ret;
	422	}
	423
f0fba2ad	424	i2c_set_clientdata(i2c, ak4535);
796d2ca8	425
d229c0be KM	426	ret = devm_snd_soc_register_component(&i2c->dev,
d229c0be KM	427	&soc_component_dev_ak4535, &ak4535_dai, 1);
a1fa9213	428
796d2ca8 RP	429	return ret;
	430	}
	431
d28d2713	432	static const struct i2c_device_id ak4535_i2c_id[] = {
ba2a2c37	433	{ "ak4535" },
d28d2713 JD	434	{ }
	435	};
	436	MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id);
796d2ca8	437
796d2ca8 RP	438	static struct i2c_driver ak4535_i2c_driver = {
796d2ca8 RP	439	.driver = {
d69280be	440	.name = "ak4535",
796d2ca8	441	},
9abcd240	442	.probe = ak4535_i2c_probe,
d28d2713	443	.id_table = ak4535_i2c_id,
796d2ca8	444	};
796d2ca8	445
b08c5764	446	module_i2c_driver(ak4535_i2c_driver);
64089b84	447
796d2ca8 RP	448	MODULE_DESCRIPTION("Soc AK4535 driver");
	449	MODULE_AUTHOR("Richard Purdie");
	450	MODULE_LICENSE("GPL");