[mirror_ubuntu-hirsute-kernel.git] / sound / soc / codecs / max9867.c

/*
 * max9867.c -- max9867 ALSA SoC Audio driver
 *
 * Copyright 2013-15 Maxim Integrated Products
 *
 * 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/delay.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "max9867.h"

static const char *const max9867_spmode[] = {
	"Stereo Diff", "Mono Diff",
	"Stereo Cap", "Mono Cap",
	"Stereo Single", "Mono Single",
	"Stereo Single Fast", "Mono Single Fast"
};
static const char *const max9867_sidetone_text[] = {
	"None", "Left", "Right", "LeftRight", "LeftRightDiv2",
};
static const char *const max9867_filter_text[] = {"IIR", "FIR"};

static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7,
	max9867_filter_text);
static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0,
	max9867_spmode);
static SOC_ENUM_SINGLE_DECL(max9867_sidetone, MAX9867_DACGAIN, 6,
	max9867_sidetone_text);
static DECLARE_TLV_DB_SCALE(max9860_capture_tlv, -600, 200, 0);
static DECLARE_TLV_DB_SCALE(max9860_mic_tlv, 2000, 100, 1);
static DECLARE_TLV_DB_SCALE(max9860_adc_left_tlv, -1200, 100, 1);
static DECLARE_TLV_DB_SCALE(max9860_adc_right_tlv, -1200, 100, 1);
static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max98088_micboost_tlv,
	0, 1, TLV_DB_SCALE_ITEM(0, 2000, 0),
	2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0),
);

static const struct snd_kcontrol_new max9867_snd_controls[] = {
	SOC_DOUBLE_R("Master Playback Volume", MAX9867_LEFTVOL,
				MAX9867_RIGHTVOL, 0, 63, 1),
	SOC_DOUBLE_R_TLV("Capture Volume", MAX9867_LEFTMICGAIN,
			MAX9867_RIGHTMICGAIN,
			0, 15, 1, max9860_capture_tlv),
	SOC_DOUBLE_R_TLV("Mic Volume", MAX9867_LEFTMICGAIN,
			MAX9867_RIGHTMICGAIN, 0, 31, 1, max9860_mic_tlv),
	SOC_DOUBLE_R_TLV("Mic Boost Volume", MAX9867_LEFTMICGAIN,
			MAX9867_RIGHTMICGAIN, 5, 3, 0, max98088_micboost_tlv),
	SOC_ENUM("Digital Sidetone Src", max9867_sidetone),
	SOC_SINGLE("Sidetone Volume", MAX9867_DACGAIN, 0, 31, 1),
	SOC_SINGLE("DAC Volume", MAX9867_DACLEVEL, 4, 3, 0),
	SOC_SINGLE("DAC Attenuation", MAX9867_DACLEVEL, 0, 15, 1),
	SOC_SINGLE_TLV("ADC Left Volume", MAX9867_ADCLEVEL,
			4, 15, 1, max9860_adc_left_tlv),
	SOC_SINGLE_TLV("ADC Right Volume", MAX9867_ADCLEVEL,
			0, 15, 1, max9860_adc_right_tlv),
	SOC_ENUM("Speaker Mode", max9867_spkmode),
	SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0),
	SOC_SINGLE("ZCD Switch", MAX9867_MODECONFIG, 5, 1, 0),
	SOC_ENUM("DSP Filter", max9867_filter),
};

static const char *const max9867_mux[] = {"None", "Mic", "Line", "Mic_Line"};

static SOC_ENUM_SINGLE_DECL(max9867_mux_enum,
	MAX9867_INPUTCONFIG, MAX9867_INPUT_SHIFT,
	max9867_mux);

static const struct snd_kcontrol_new max9867_dapm_mux_controls =
	SOC_DAPM_ENUM("Route", max9867_mux_enum);

static const struct snd_kcontrol_new max9867_left_dapm_control =
	SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 6, 1, 0);
static const struct snd_kcontrol_new max9867_right_dapm_control =
	SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 5, 1, 0);
static const struct snd_kcontrol_new max9867_line_dapm_control =
	SOC_DAPM_SINGLE("Switch", MAX9867_LEFTLINELVL, 6, 1, 1);

static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = {
	SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_DAC("Left DAC", NULL, MAX9867_PWRMAN, 3, 0),
	SND_SOC_DAPM_DAC("Right DAC", NULL, MAX9867_PWRMAN, 2, 0),
	SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_OUTPUT("HPOUT"),

	SND_SOC_DAPM_AIF_IN("DAI_IN", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_ADC("Left ADC", "HiFi Capture", MAX9867_PWRMAN, 1, 0),
	SND_SOC_DAPM_ADC("Right ADC", "HiFi Capture", MAX9867_PWRMAN, 0, 0),
	SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
		&max9867_dapm_mux_controls),

	SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_SWITCH("Left Line", MAX9867_LEFTLINELVL, 6, 1,
		&max9867_left_dapm_control),
	SND_SOC_DAPM_SWITCH("Right Line", MAX9867_RIGTHLINELVL, 6, 1,
		&max9867_right_dapm_control),
	SND_SOC_DAPM_SWITCH("Line Mixer", SND_SOC_NOPM, 0, 0,
		&max9867_line_dapm_control),
	SND_SOC_DAPM_INPUT("LINE_IN"),
};

static const struct snd_soc_dapm_route max9867_audio_map[] = {
	{"Left DAC", NULL, "DAI_OUT"},
	{"Right DAC", NULL, "DAI_OUT"},
	{"Output Mixer", NULL, "Left DAC"},
	{"Output Mixer", NULL, "Right DAC"},
	{"HPOUT", NULL, "Output Mixer"},

	{"Left ADC", NULL, "DAI_IN"},
	{"Right ADC", NULL, "DAI_IN"},
	{"Input Mixer", NULL, "Left ADC"},
	{"Input Mixer", NULL, "Right ADC"},
	{"Input Mux", "Line", "Input Mixer"},
	{"Input Mux", "Mic", "Input Mixer"},
	{"Input Mux", "Mic_Line", "Input Mixer"},
	{"Right Line", "Switch", "Input Mux"},
	{"Left Line", "Switch", "Input Mux"},
	{"LINE_IN", NULL, "Left Line"},
	{"LINE_IN", NULL, "Right Line"},
};

enum rates {
	pcm_rate_8, pcm_rate_16, pcm_rate_24,
	pcm_rate_32, pcm_rate_44,
	pcm_rate_48, max_pcm_rate,
};

struct ni_div_rates {
	u32 mclk;
	u16 ni[max_pcm_rate];
} ni_div[] = {
	{11289600, {0x116A, 0x22D4, 0x343F, 0x45A9, 0x6000, 0x687D} },
	{12000000, {0x1062, 0x20C5, 0x3127, 0x4189, 0x5A51, 0x624E} },
	{12288000, {0x1000, 0x2000, 0x3000, 0x4000, 0x5833, 0x6000} },
	{13000000, {0x0F20, 0x1E3F, 0x2D5F, 0x3C7F, 0x535F, 0x5ABE} },
	{19200000, {0x0A3D, 0x147B, 0x1EB8, 0x28F6, 0x3873, 0x3D71} },
	{24000000, {0x1062, 0x20C5, 0x1893, 0x4189, 0x5A51, 0x624E} },
	{26000000, {0x0F20, 0x1E3F, 0x16AF, 0x3C7F, 0x535F, 0x5ABE} },
	{27000000, {0x0E90, 0x1D21, 0x15D8, 0x3A41, 0x5048, 0x5762} },
};

static inline int get_ni_value(int mclk, int rate)
{
	int i, ret = 0;

	/* find the closest rate index*/
	for (i = 0; i < ARRAY_SIZE(ni_div); i++) {
		if (ni_div[i].mclk >= mclk)
			break;
	}
	if (i == ARRAY_SIZE(ni_div))
		return -EINVAL;

	switch (rate) {
	case 8000:
		return ni_div[i].ni[pcm_rate_8];
	case 16000:
		return ni_div[i].ni[pcm_rate_16];
	case 32000:
		return ni_div[i].ni[pcm_rate_32];
	case 44100:
		return ni_div[i].ni[pcm_rate_44];
	case 48000:
		return ni_div[i].ni[pcm_rate_48];
	default:
		pr_err("%s wrong rate %d\n", __func__, rate);
		ret = -EINVAL;
	}
	return ret;
}

static int max9867_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 max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
	unsigned int ni_h, ni_l;
	int value;

	value = get_ni_value(max9867->sysclk, params_rate(params));
	if (value < 0)
		return value;

	ni_h = (0xFF00 & value) >> 8;
	ni_l = 0x00FF & value;
	/* set up the ni value */
	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
		MAX9867_NI_HIGH_MASK, ni_h);
	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
		MAX9867_NI_LOW_MASK, ni_l);
	if (!max9867->master) {
		/*
		 * digital pll locks on to any externally supplied LRCLK signal
		 * and also enable rapid lock mode.
		 */
		regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
			MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);
		regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
			MAX9867_PLL, MAX9867_PLL);
	} else {
		unsigned long int bclk_rate, pclk_bclk_ratio;
		int bclk_value;

		bclk_rate = params_rate(params) * 2 * params_width(params);
		pclk_bclk_ratio = max9867->pclk/bclk_rate;
		switch (params_width(params)) {
		case 8:
		case 16:
			switch (pclk_bclk_ratio) {
			case 2:
				bclk_value = MAX9867_IFC1B_PCLK_2;
				break;
			case 4:
				bclk_value = MAX9867_IFC1B_PCLK_4;
				break;
			case 8:
				bclk_value = MAX9867_IFC1B_PCLK_8;
				break;
			case 16:
				bclk_value = MAX9867_IFC1B_PCLK_16;
				break;
			default:
				dev_err(codec->dev,
					"unsupported sampling rate\n");
				return -EINVAL;
			}
			break;
		case 24:
			bclk_value = MAX9867_IFC1B_24BIT;
			break;
		case 32:
			bclk_value = MAX9867_IFC1B_32BIT;
			break;
		default:
			dev_err(codec->dev, "unsupported sampling rate\n");
			return -EINVAL;
		}
		regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
			MAX9867_IFC1B_BCLK_MASK, bclk_value);
	}
	return 0;
}

static int max9867_prepare(struct snd_pcm_substream *substream,
			 struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);

	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
		MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);
	return 0;
}

static int max9867_mute(struct snd_soc_dai *dai, int mute)
{
	struct snd_soc_codec *codec = dai->codec;
	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);

	if (mute)
		regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
			MAX9867_DAC_MUTE_MASK, MAX9867_DAC_MUTE_MASK);
	else
		regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
			MAX9867_DAC_MUTE_MASK, 0);
	return 0;
}

static int max9867_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 max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
	int value = 0;

	/* Set the prescaler based on the master clock frequency*/
	if (freq >= 10000000 && freq <= 20000000) {
		value |= MAX9867_PSCLK_10_20;
		max9867->pclk =  freq;
	} else if (freq >= 20000000 && freq <= 40000000) {
		value |= MAX9867_PSCLK_20_40;
		max9867->pclk =  freq/2;
	} else if (freq >= 40000000 && freq <= 60000000) {
		value |= MAX9867_PSCLK_40_60;
		max9867->pclk =  freq/4;
	} else {
		pr_err("bad clock frequency %d", freq);
		return -EINVAL;
	}
	value = value << MAX9867_PSCLK_SHIFT;
	max9867->sysclk = freq;
	/* exact integer mode is not supported */
	value &= ~MAX9867_FREQ_MASK;
	regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,
			MAX9867_PSCLK_MASK, value);
	return 0;
}

static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
	u8 iface1A = 0, iface1B = 0;
	int ret;

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		max9867->master = 1;
		iface1A |= MAX9867_MASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
		max9867->master = 0;
		iface1A &= ~MAX9867_MASTER;
		break;
	default:
		return -EINVAL;
	}

	/* for i2s compatible mode */
	iface1A |= MAX9867_I2S_DLY;
	/* SDOUT goes to hiz state after all data is transferred */
	iface1A |= MAX9867_SDOUT_HIZ;

	/* Clock inversion bits, BCI and WCI */
	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
		break;
	case SND_SOC_DAIFMT_IB_IF:
		iface1A |= MAX9867_WCI_MODE | MAX9867_BCI_MODE;
		break;
	case SND_SOC_DAIFMT_IB_NF:
		iface1A |= MAX9867_BCI_MODE;
		break;
	case SND_SOC_DAIFMT_NB_IF:
		iface1A |= MAX9867_WCI_MODE;
		break;
	default:
		return -EINVAL;
	}

	ret = regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A);
	ret = regmap_write(max9867->regmap, MAX9867_IFC1B, iface1B);
	return 0;
}

static struct snd_soc_dai_ops max9867_dai_ops = {
	.set_fmt = max9867_dai_set_fmt,
	.set_sysclk	= max9867_set_dai_sysclk,
	.prepare	= max9867_prepare,
	.digital_mute	= max9867_mute,
	.hw_params = max9867_dai_hw_params,
};

#define MAX9867_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
	SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
#define MAX9867_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)

static struct snd_soc_dai_driver max9867_dai[] = {
	{
	.name = "max9867-aif1",
	.playback = {
		.stream_name = "HiFi Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = MAX9867_RATES,
		.formats = MAX9867_FORMATS,
	},
	.capture = {
		.stream_name = "HiFi Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = MAX9867_RATES,
		.formats = MAX9867_FORMATS,
	},
	.ops = &max9867_dai_ops,
	}
};

#ifdef CONFIG_PM_SLEEP
static int max9867_suspend(struct device *dev)
{
	struct max9867_priv *max9867 = dev_get_drvdata(dev);

	/* Drop down to power saving mode when system is suspended */
	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
		MAX9867_SHTDOWN_MASK, ~MAX9867_SHTDOWN_MASK);
	return 0;
}

static int max9867_resume(struct device *dev)
{
	struct max9867_priv *max9867 = dev_get_drvdata(dev);

	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
		MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);
	return 0;
}
#endif

static int max9867_probe(struct snd_soc_codec *codec)
{
	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);

	dev_dbg(codec->dev, "max98090_probe\n");
	max9867->codec = codec;
	return 0;
}

static struct snd_soc_codec_driver max9867_codec = {
	.probe = max9867_probe,
	.component_driver = {
		.controls		= max9867_snd_controls,
		.num_controls		= ARRAY_SIZE(max9867_snd_controls),
		.dapm_routes		= max9867_audio_map,
		.num_dapm_routes	= ARRAY_SIZE(max9867_audio_map),
		.dapm_widgets		= max9867_dapm_widgets,
		.num_dapm_widgets	= ARRAY_SIZE(max9867_dapm_widgets),
	},
};

static bool max9867_volatile_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case MAX9867_STATUS:
	case MAX9867_JACKSTATUS:
	case MAX9867_AUXHIGH:
	case MAX9867_AUXLOW:
		return true;
	default:
		return false;
	}
}

static const struct reg_default max9867_reg[] = {
	{ 0x04, 0x00 },
	{ 0x05, 0x00 },
	{ 0x06, 0x00 },
	{ 0x07, 0x00 },
	{ 0x08, 0x00 },
	{ 0x09, 0x00 },
	{ 0x0A, 0x00 },
	{ 0x0B, 0x00 },
	{ 0x0C, 0x00 },
	{ 0x0D, 0x00 },
	{ 0x0E, 0x00 },
	{ 0x0F, 0x00 },
	{ 0x10, 0x00 },
	{ 0x11, 0x00 },
	{ 0x12, 0x00 },
	{ 0x13, 0x00 },
	{ 0x14, 0x00 },
	{ 0x15, 0x00 },
	{ 0x16, 0x00 },
	{ 0x17, 0x00 },
};

static const struct regmap_config max9867_regmap = {
	.reg_bits	= 8,
	.val_bits	= 8,
	.max_register	= MAX9867_REVISION,
	.reg_defaults	= max9867_reg,
	.num_reg_defaults = ARRAY_SIZE(max9867_reg),
	.volatile_reg	= max9867_volatile_register,
	.cache_type	= REGCACHE_RBTREE,
};

static int max9867_i2c_probe(struct i2c_client *i2c,
		const struct i2c_device_id *id)
{
	struct max9867_priv *max9867;
	int ret = 0, reg;

	max9867 = devm_kzalloc(&i2c->dev,
			sizeof(*max9867), GFP_KERNEL);
	if (!max9867)
		return -ENOMEM;

	i2c_set_clientdata(i2c, max9867);
	max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap);
	if (IS_ERR(max9867->regmap)) {
		ret = PTR_ERR(max9867->regmap);
		dev_err(&i2c->dev,
				"Failed to allocate regmap: %d\n", ret);
		return ret;
	}
	ret = regmap_read(max9867->regmap,
			MAX9867_REVISION, &reg);
	if (ret < 0) {
		dev_err(&i2c->dev, "Failed to read: %d\n", ret);
		return ret;
	}
	dev_info(&i2c->dev, "device revision: %x\n", reg);
	ret = snd_soc_register_codec(&i2c->dev, &max9867_codec,
			max9867_dai, ARRAY_SIZE(max9867_dai));
	if (ret < 0) {
		dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
		return ret;
	}
	return ret;
}

static int max9867_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);
	return 0;
}

static const struct i2c_device_id max9867_i2c_id[] = {
	{ "max9867", 0 },
	{ }
};

static const struct of_device_id max9867_of_match[] = {
	{ .compatible = "maxim,max9867", },
	{ }
};

MODULE_DEVICE_TABLE(i2c, max9867_i2c_id);

static const struct dev_pm_ops max9867_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(max9867_suspend, max9867_resume)
};

static struct i2c_driver max9867_i2c_driver = {
	.driver = {
		.name = "max9867",
		.of_match_table = of_match_ptr(max9867_of_match),
		.pm = &max9867_pm_ops,
	},
	.probe  = max9867_i2c_probe,
	.remove = max9867_i2c_remove,
	.id_table = max9867_i2c_id,
};

module_i2c_driver(max9867_i2c_driver);

MODULE_AUTHOR("anish kumar <yesanishhere@gmail.com>");
MODULE_DESCRIPTION("ALSA SoC MAX9867 driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
805d132d	1	/*
	2	* max9867.c -- max9867 ALSA SoC Audio driver
	3	*
	4	* Copyright 2013-15 Maxim Integrated Products
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10
	11	#include <linux/delay.h>
	12	#include <linux/i2c.h>
	13	#include <linux/module.h>
	14	#include <linux/regmap.h>
	15	#include <sound/pcm_params.h>
	16	#include <sound/soc.h>
	17	#include <sound/tlv.h>
	18	#include "max9867.h"
	19
	20	static const char *const max9867_spmode[] = {
	21	"Stereo Diff", "Mono Diff",
	22	"Stereo Cap", "Mono Cap",
	23	"Stereo Single", "Mono Single",
	24	"Stereo Single Fast", "Mono Single Fast"
	25	};
	26	static const char *const max9867_sidetone_text[] = {
	27	"None", "Left", "Right", "LeftRight", "LeftRightDiv2",
	28	};
	29	static const char *const max9867_filter_text[] = {"IIR", "FIR"};
	30
	31	static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7,
	32	max9867_filter_text);
	33	static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0,
	34	max9867_spmode);
	35	static SOC_ENUM_SINGLE_DECL(max9867_sidetone, MAX9867_DACGAIN, 6,
	36	max9867_sidetone_text);
	37	static DECLARE_TLV_DB_SCALE(max9860_capture_tlv, -600, 200, 0);
	38	static DECLARE_TLV_DB_SCALE(max9860_mic_tlv, 2000, 100, 1);
	39	static DECLARE_TLV_DB_SCALE(max9860_adc_left_tlv, -1200, 100, 1);
	40	static DECLARE_TLV_DB_SCALE(max9860_adc_right_tlv, -1200, 100, 1);
349fa18c	41	static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max98088_micboost_tlv,
805d132d	42	0, 1, TLV_DB_SCALE_ITEM(0, 2000, 0),
805d132d	43	2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0),
349fa18c	44	);
805d132d	45
	46	static const struct snd_kcontrol_new max9867_snd_controls[] = {
	47	SOC_DOUBLE_R("Master Playback Volume", MAX9867_LEFTVOL,
	48	MAX9867_RIGHTVOL, 0, 63, 1),
	49	SOC_DOUBLE_R_TLV("Capture Volume", MAX9867_LEFTMICGAIN,
	50	MAX9867_RIGHTMICGAIN,
	51	0, 15, 1, max9860_capture_tlv),
	52	SOC_DOUBLE_R_TLV("Mic Volume", MAX9867_LEFTMICGAIN,
	53	MAX9867_RIGHTMICGAIN, 0, 31, 1, max9860_mic_tlv),
	54	SOC_DOUBLE_R_TLV("Mic Boost Volume", MAX9867_LEFTMICGAIN,
	55	MAX9867_RIGHTMICGAIN, 5, 3, 0, max98088_micboost_tlv),
	56	SOC_ENUM("Digital Sidetone Src", max9867_sidetone),
	57	SOC_SINGLE("Sidetone Volume", MAX9867_DACGAIN, 0, 31, 1),
	58	SOC_SINGLE("DAC Volume", MAX9867_DACLEVEL, 4, 3, 0),
	59	SOC_SINGLE("DAC Attenuation", MAX9867_DACLEVEL, 0, 15, 1),
	60	SOC_SINGLE_TLV("ADC Left Volume", MAX9867_ADCLEVEL,
	61	4, 15, 1, max9860_adc_left_tlv),
	62	SOC_SINGLE_TLV("ADC Right Volume", MAX9867_ADCLEVEL,
	63	0, 15, 1, max9860_adc_right_tlv),
	64	SOC_ENUM("Speaker Mode", max9867_spkmode),
	65	SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0),
	66	SOC_SINGLE("ZCD Switch", MAX9867_MODECONFIG, 5, 1, 0),
	67	SOC_ENUM("DSP Filter", max9867_filter),
	68	};
	69
	70	static const char *const max9867_mux[] = {"None", "Mic", "Line", "Mic_Line"};
	71
	72	static SOC_ENUM_SINGLE_DECL(max9867_mux_enum,
	73	MAX9867_INPUTCONFIG, MAX9867_INPUT_SHIFT,
	74	max9867_mux);
	75
	76	static const struct snd_kcontrol_new max9867_dapm_mux_controls =
	77	SOC_DAPM_ENUM("Route", max9867_mux_enum);
	78
	79	static const struct snd_kcontrol_new max9867_left_dapm_control =
	80	SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 6, 1, 0);
	81	static const struct snd_kcontrol_new max9867_right_dapm_control =
	82	SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 5, 1, 0);
	83	static const struct snd_kcontrol_new max9867_line_dapm_control =
	84	SOC_DAPM_SINGLE("Switch", MAX9867_LEFTLINELVL, 6, 1, 1);
	85
	86	static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = {
	87	SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
	88	SND_SOC_DAPM_DAC("Left DAC", NULL, MAX9867_PWRMAN, 3, 0),
	89	SND_SOC_DAPM_DAC("Right DAC", NULL, MAX9867_PWRMAN, 2, 0),
	90	SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
	91	SND_SOC_DAPM_OUTPUT("HPOUT"),
	92
	93	SND_SOC_DAPM_AIF_IN("DAI_IN", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
	94	SND_SOC_DAPM_ADC("Left ADC", "HiFi Capture", MAX9867_PWRMAN, 1, 0),
	95	SND_SOC_DAPM_ADC("Right ADC", "HiFi Capture", MAX9867_PWRMAN, 0, 0),
	96	SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
	97	&max9867_dapm_mux_controls),
	98
	99	SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
	100	SND_SOC_DAPM_SWITCH("Left Line", MAX9867_LEFTLINELVL, 6, 1,
	101	&max9867_left_dapm_control),
	102	SND_SOC_DAPM_SWITCH("Right Line", MAX9867_RIGTHLINELVL, 6, 1,
	103	&max9867_right_dapm_control),
	104	SND_SOC_DAPM_SWITCH("Line Mixer", SND_SOC_NOPM, 0, 0,
	105	&max9867_line_dapm_control),
	106	SND_SOC_DAPM_INPUT("LINE_IN"),
	107	};
	108
109	static const struct snd_soc_dapm_route max9867_audio_map[] = {
110	{"Left DAC", NULL, "DAI_OUT"},
111	{"Right DAC", NULL, "DAI_OUT"},
112	{"Output Mixer", NULL, "Left DAC"},
113	{"Output Mixer", NULL, "Right DAC"},
114	{"HPOUT", NULL, "Output Mixer"},
115
116	{"Left ADC", NULL, "DAI_IN"},
117	{"Right ADC", NULL, "DAI_IN"},
118	{"Input Mixer", NULL, "Left ADC"},
119	{"Input Mixer", NULL, "Right ADC"},
120	{"Input Mux", "Line", "Input Mixer"},
121	{"Input Mux", "Mic", "Input Mixer"},
122	{"Input Mux", "Mic_Line", "Input Mixer"},
123	{"Right Line", "Switch", "Input Mux"},
124	{"Left Line", "Switch", "Input Mux"},
125	{"LINE_IN", NULL, "Left Line"},
126	{"LINE_IN", NULL, "Right Line"},
127	};
128
129	enum rates {
130	pcm_rate_8, pcm_rate_16, pcm_rate_24,
131	pcm_rate_32, pcm_rate_44,
132	pcm_rate_48, max_pcm_rate,
133	};
134
135	struct ni_div_rates {
136	u32 mclk;
137	u16 ni[max_pcm_rate];
138	} ni_div[] = {
139	{11289600, {0x116A, 0x22D4, 0x343F, 0x45A9, 0x6000, 0x687D} },
140	{12000000, {0x1062, 0x20C5, 0x3127, 0x4189, 0x5A51, 0x624E} },
141	{12288000, {0x1000, 0x2000, 0x3000, 0x4000, 0x5833, 0x6000} },
142	{13000000, {0x0F20, 0x1E3F, 0x2D5F, 0x3C7F, 0x535F, 0x5ABE} },
143	{19200000, {0x0A3D, 0x147B, 0x1EB8, 0x28F6, 0x3873, 0x3D71} },
144	{24000000, {0x1062, 0x20C5, 0x1893, 0x4189, 0x5A51, 0x624E} },
145	{26000000, {0x0F20, 0x1E3F, 0x16AF, 0x3C7F, 0x535F, 0x5ABE} },
146	{27000000, {0x0E90, 0x1D21, 0x15D8, 0x3A41, 0x5048, 0x5762} },
147	};
148
149	static inline int get_ni_value(int mclk, int rate)
150	{
151	int i, ret = 0;
152
153	/* find the closest rate index*/
154	for (i = 0; i < ARRAY_SIZE(ni_div); i++) {
155	if (ni_div[i].mclk >= mclk)
156	break;
157	}
90966391 DC	158	if (i == ARRAY_SIZE(ni_div))
90966391 DC	159	return -EINVAL;
805d132d	160
	161	switch (rate) {
	162	case 8000:
	163	return ni_div[i].ni[pcm_rate_8];
	164	case 16000:
	165	return ni_div[i].ni[pcm_rate_16];
	166	case 32000:
	167	return ni_div[i].ni[pcm_rate_32];
	168	case 44100:
	169	return ni_div[i].ni[pcm_rate_44];
	170	case 48000:
	171	return ni_div[i].ni[pcm_rate_48];
	172	default:
	173	pr_err("%s wrong rate %d\n", __func__, rate);
	174	ret = -EINVAL;
	175	}
	176	return ret;
	177	}
	178
	179	static int max9867_dai_hw_params(struct snd_pcm_substream *substream,
	180	struct snd_pcm_hw_params params, struct snd_soc_dai dai)
	181	{
	182	struct snd_soc_codec *codec = dai->codec;
	183	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
127a9cbb AH	184	unsigned int ni_h, ni_l;
127a9cbb AH	185	int value;
805d132d	186
	187	value = get_ni_value(max9867->sysclk, params_rate(params));
	188	if (value < 0)
	189	return value;
	190
	191	ni_h = (0xFF00 & value) >> 8;
	192	ni_l = 0x00FF & value;
	193	/* set up the ni value */
	194	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
	195	MAX9867_NI_HIGH_MASK, ni_h);
	196	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
	197	MAX9867_NI_LOW_MASK, ni_l);
	198	if (!max9867->master) {
	199	/*
	200	* digital pll locks on to any externally supplied LRCLK signal
	201	* and also enable rapid lock mode.
	202	*/
	203	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
	204	MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);
	205	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
	206	MAX9867_PLL, MAX9867_PLL);
	207	} else {
	208	unsigned long int bclk_rate, pclk_bclk_ratio;
	209	int bclk_value;
	210
9dcc72ef	211	bclk_rate = params_rate(params) * 2 * params_width(params);
805d132d	212	pclk_bclk_ratio = max9867->pclk/bclk_rate;
9dcc72ef	213	switch (params_width(params)) {
805d132d	214	case 8:
805d132d	215	case 16:
b1461450	216	switch (pclk_bclk_ratio) {
b1461450	217	case 2:
805d132d	218	bclk_value = MAX9867_IFC1B_PCLK_2;
b1461450	219	break;
b1461450	220	case 4:
805d132d	221	bclk_value = MAX9867_IFC1B_PCLK_4;
b1461450	222	break;
b1461450	223	case 8:
805d132d	224	bclk_value = MAX9867_IFC1B_PCLK_8;
b1461450	225	break;
b1461450	226	case 16:
805d132d	227	bclk_value = MAX9867_IFC1B_PCLK_16;
b1461450	228	break;
	229	default:
	230	dev_err(codec->dev,
	231	"unsupported sampling rate\n");
805d132d	232	return -EINVAL;
	233	}
	234	break;
	235	case 24:
	236	bclk_value = MAX9867_IFC1B_24BIT;
	237	break;
	238	case 32:
	239	bclk_value = MAX9867_IFC1B_32BIT;
	240	break;
	241	default:
	242	dev_err(codec->dev, "unsupported sampling rate\n");
	243	return -EINVAL;
	244	}
	245	regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
	246	MAX9867_IFC1B_BCLK_MASK, bclk_value);
	247	}
	248	return 0;
	249	}
	250
	251	static int max9867_prepare(struct snd_pcm_substream *substream,
	252	struct snd_soc_dai *dai)
	253	{
	254	struct snd_soc_codec *codec = dai->codec;
	255	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
	256
	257	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
	258	MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);
	259	return 0;
	260	}
	261
	262	static int max9867_mute(struct snd_soc_dai *dai, int mute)
	263	{
	264	struct snd_soc_codec *codec = dai->codec;
	265	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
	266
	267	if (mute)
	268	regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
	269	MAX9867_DAC_MUTE_MASK, MAX9867_DAC_MUTE_MASK);
	270	else
	271	regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
	272	MAX9867_DAC_MUTE_MASK, 0);
	273	return 0;
	274	}
	275
	276	static int max9867_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	277	int clk_id, unsigned int freq, int dir)
	278	{
	279	struct snd_soc_codec *codec = codec_dai->codec;
	280	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
	281	int value = 0;
	282
	283	/* Set the prescaler based on the master clock frequency*/
	284	if (freq >= 10000000 && freq <= 20000000) {
	285	value \|= MAX9867_PSCLK_10_20;
	286	max9867->pclk = freq;
	287	} else if (freq >= 20000000 && freq <= 40000000) {
	288	value \|= MAX9867_PSCLK_20_40;
	289	max9867->pclk = freq/2;
	290	} else if (freq >= 40000000 && freq <= 60000000) {
	291	value \|= MAX9867_PSCLK_40_60;
	292	max9867->pclk = freq/4;
	293	} else {
	294	pr_err("bad clock frequency %d", freq);
	295	return -EINVAL;
296	}
297	value = value << MAX9867_PSCLK_SHIFT;
298	max9867->sysclk = freq;
299	/* exact integer mode is not supported */
300	value &= ~MAX9867_FREQ_MASK;
301	regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,
302	MAX9867_PSCLK_MASK, value);
303	return 0;
304	}
305
306	static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,
307	unsigned int fmt)
308	{
309	struct snd_soc_codec *codec = codec_dai->codec;
310	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
311	u8 iface1A = 0, iface1B = 0;
312	int ret;
313
314	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
315	case SND_SOC_DAIFMT_CBM_CFM:
316	max9867->master = 1;
317	iface1A \|= MAX9867_MASTER;
318	break;
319	case SND_SOC_DAIFMT_CBS_CFS:
320	max9867->master = 0;
321	iface1A &= ~MAX9867_MASTER;
322	break;
323	default:
324	return -EINVAL;
325	}
326
327	/* for i2s compatible mode */
328	iface1A \|= MAX9867_I2S_DLY;
329	/* SDOUT goes to hiz state after all data is transferred */
330	iface1A \|= MAX9867_SDOUT_HIZ;
331
332	/* Clock inversion bits, BCI and WCI */
333	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
334	case SND_SOC_DAIFMT_NB_NF:
335	break;
336	case SND_SOC_DAIFMT_IB_IF:
337	iface1A \|= MAX9867_WCI_MODE \| MAX9867_BCI_MODE;
338	break;
339	case SND_SOC_DAIFMT_IB_NF:
340	iface1A \|= MAX9867_BCI_MODE;
341	break;
342	case SND_SOC_DAIFMT_NB_IF:
343	iface1A \|= MAX9867_WCI_MODE;
344	break;
345	default:
346	return -EINVAL;
347	}
348
349	ret = regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A);
350	ret = regmap_write(max9867->regmap, MAX9867_IFC1B, iface1B);
351	return 0;
352	}
353
354	static struct snd_soc_dai_ops max9867_dai_ops = {
355	.set_fmt = max9867_dai_set_fmt,
356	.set_sysclk = max9867_set_dai_sysclk,
357	.prepare = max9867_prepare,
358	.digital_mute = max9867_mute,
359	.hw_params = max9867_dai_hw_params,
360	};
361
362	#define MAX9867_RATES (SNDRV_PCM_RATE_8000 \| SNDRV_PCM_RATE_16000 \|\
363	SNDRV_PCM_RATE_32000 \| SNDRV_PCM_RATE_44100 \| SNDRV_PCM_RATE_48000)
364	#define MAX9867_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
365
366	static struct snd_soc_dai_driver max9867_dai[] = {
367	{
368	.name = "max9867-aif1",
369	.playback = {
370	.stream_name = "HiFi Playback",
371	.channels_min = 1,
372	.channels_max = 2,
373	.rates = MAX9867_RATES,
374	.formats = MAX9867_FORMATS,
375	},
376	.capture = {
377	.stream_name = "HiFi Capture",
378	.channels_min = 1,
379	.channels_max = 2,
380	.rates = MAX9867_RATES,
381	.formats = MAX9867_FORMATS,
382	},
383	.ops = &max9867_dai_ops,
384	}
385	};
386
387	#ifdef CONFIG_PM_SLEEP
388	static int max9867_suspend(struct device *dev)
389	{
390	struct max9867_priv *max9867 = dev_get_drvdata(dev);
391
392	/* Drop down to power saving mode when system is suspended */
393	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
394	MAX9867_SHTDOWN_MASK, ~MAX9867_SHTDOWN_MASK);
395	return 0;
396	}
397
398	static int max9867_resume(struct device *dev)
399	{
400	struct max9867_priv *max9867 = dev_get_drvdata(dev);
401
402	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
403	MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);
404	return 0;
405	}
406	#endif
407
408	static int max9867_probe(struct snd_soc_codec *codec)
409	{
410	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
411
412	dev_dbg(codec->dev, "max98090_probe\n");
413	max9867->codec = codec;
414	return 0;
415	}
416
417	static struct snd_soc_codec_driver max9867_codec = {
418	.probe = max9867_probe,
e92b48aa KM	419	.component_driver = {
	420	.controls = max9867_snd_controls,
	421	.num_controls = ARRAY_SIZE(max9867_snd_controls),
	422	.dapm_routes = max9867_audio_map,
	423	.num_dapm_routes = ARRAY_SIZE(max9867_audio_map),
	424	.dapm_widgets = max9867_dapm_widgets,
	425	.num_dapm_widgets = ARRAY_SIZE(max9867_dapm_widgets),
	426	},
805d132d	427	};
	428
	429	static bool max9867_volatile_register(struct device *dev, unsigned int reg)
	430	{
	431	switch (reg) {
	432	case MAX9867_STATUS:
	433	case MAX9867_JACKSTATUS:
	434	case MAX9867_AUXHIGH:
	435	case MAX9867_AUXLOW:
	436	return true;
	437	default:
	438	return false;
	439	}
	440	}
	441
250a99e7	442	static const struct reg_default max9867_reg[] = {
805d132d	443	{ 0x04, 0x00 },
	444	{ 0x05, 0x00 },
	445	{ 0x06, 0x00 },
	446	{ 0x07, 0x00 },
	447	{ 0x08, 0x00 },
	448	{ 0x09, 0x00 },
	449	{ 0x0A, 0x00 },
	450	{ 0x0B, 0x00 },
	451	{ 0x0C, 0x00 },
	452	{ 0x0D, 0x00 },
	453	{ 0x0E, 0x00 },
	454	{ 0x0F, 0x00 },
	455	{ 0x10, 0x00 },
	456	{ 0x11, 0x00 },
	457	{ 0x12, 0x00 },
	458	{ 0x13, 0x00 },
	459	{ 0x14, 0x00 },
	460	{ 0x15, 0x00 },
	461	{ 0x16, 0x00 },
	462	{ 0x17, 0x00 },
	463	};
	464
250a99e7	465	static const struct regmap_config max9867_regmap = {
805d132d	466	.reg_bits = 8,
	467	.val_bits = 8,
	468	.max_register = MAX9867_REVISION,
	469	.reg_defaults = max9867_reg,
	470	.num_reg_defaults = ARRAY_SIZE(max9867_reg),
	471	.volatile_reg = max9867_volatile_register,
	472	.cache_type = REGCACHE_RBTREE,
	473	};
	474
	475	static int max9867_i2c_probe(struct i2c_client *i2c,
	476	const struct i2c_device_id *id)
	477	{
	478	struct max9867_priv *max9867;
	479	int ret = 0, reg;
	480
	481	max9867 = devm_kzalloc(&i2c->dev,
	482	sizeof(*max9867), GFP_KERNEL);
	483	if (!max9867)
	484	return -ENOMEM;
	485
	486	i2c_set_clientdata(i2c, max9867);
	487	max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap);
	488	if (IS_ERR(max9867->regmap)) {
	489	ret = PTR_ERR(max9867->regmap);
	490	dev_err(&i2c->dev,
	491	"Failed to allocate regmap: %d\n", ret);
	492	return ret;
	493	}
	494	ret = regmap_read(max9867->regmap,
	495	MAX9867_REVISION, &reg);
	496	if (ret < 0) {
	497	dev_err(&i2c->dev, "Failed to read: %d\n", ret);
	498	return ret;
	499	}
	500	dev_info(&i2c->dev, "device revision: %x\n", reg);
	501	ret = snd_soc_register_codec(&i2c->dev, &max9867_codec,
	502	max9867_dai, ARRAY_SIZE(max9867_dai));
	503	if (ret < 0) {
	504	dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
	505	return ret;
	506	}
	507	return ret;
	508	}
	509
	510	static int max9867_i2c_remove(struct i2c_client *client)
	511	{
	512	snd_soc_unregister_codec(&client->dev);
	513	return 0;
	514	}
	515
	516	static const struct i2c_device_id max9867_i2c_id[] = {
	517	{ "max9867", 0 },
1b36e4a2	518	{ }
805d132d	519	};
	520
	521	static const struct of_device_id max9867_of_match[] = {
	522	{ .compatible = "maxim,max9867", },
	523	{ }
	524	};
	525
	526	MODULE_DEVICE_TABLE(i2c, max9867_i2c_id);
	527
	528	static const struct dev_pm_ops max9867_pm_ops = {
	529	SET_SYSTEM_SLEEP_PM_OPS(max9867_suspend, max9867_resume)
	530	};
	531
	532	static struct i2c_driver max9867_i2c_driver = {
	533	.driver = {
	534	.name = "max9867",
	535	.of_match_table = of_match_ptr(max9867_of_match),
	536	.pm = &max9867_pm_ops,
	537	},
	538	.probe = max9867_i2c_probe,
	539	.remove = max9867_i2c_remove,
	540	.id_table = max9867_i2c_id,
	541	};
	542
	543	module_i2c_driver(max9867_i2c_driver);
	544
	545	MODULE_AUTHOR("anish kumar <yesanishhere@gmail.com>");
	546	MODULE_DESCRIPTION("ALSA SoC MAX9867 driver");
	547	MODULE_LICENSE("GPL");