// SPDX-License-Identifier: GPL-2.0-only
//
// rt712-sdca-dmic.c -- rt712 SDCA DMIC ALSA SoC audio driver
//
// Copyright(c) 2023 Realtek Semiconductor Corp.
//
//

#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/pm_runtime.h>
#include <linux/soundwire/sdw_registers.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include "rt712-sdca.h"
#include "rt712-sdca-dmic.h"

static bool rt712_sdca_dmic_readable_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case 0x201a ... 0x201f:
	case 0x2029 ... 0x202a:
	case 0x202d ... 0x2034:
	case 0x2230 ... 0x2232:
	case 0x2f01 ... 0x2f0a:
	case 0x2f35 ... 0x2f36:
	case 0x2f52:
	case 0x2f58 ... 0x2f59:
	case 0x3201:
	case 0x320c:
		return true;
	default:
		return false;
	}
}

static bool rt712_sdca_dmic_volatile_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case 0x201b:
	case 0x201c:
	case 0x201d:
	case 0x201f:
	case 0x202d ... 0x202f:
	case 0x2230:
	case 0x2f01:
	case 0x2f35:
	case 0x320c:
		return true;
	default:
		return false;
	}
}

static bool rt712_sdca_dmic_mbq_readable_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case 0x2000000 ... 0x200008e:
	case 0x5300000 ... 0x530000e:
	case 0x5400000 ... 0x540000e:
	case 0x5600000 ... 0x5600008:
	case 0x5700000 ... 0x570000d:
	case 0x5800000 ... 0x5800021:
	case 0x5900000 ... 0x5900028:
	case 0x5a00000 ... 0x5a00009:
	case 0x5b00000 ... 0x5b00051:
	case 0x5c00000 ... 0x5c0009a:
	case 0x5d00000 ... 0x5d00009:
	case 0x5f00000 ... 0x5f00030:
	case 0x6100000 ... 0x6100068:
	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_01):
	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_02):
	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_03):
	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_04):
	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_01):
	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_02):
	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_03):
	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_04):
		return true;
	default:
		return false;
	}
}

static bool rt712_sdca_dmic_mbq_volatile_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case 0x2000000:
	case 0x200001a:
	case 0x2000024:
	case 0x2000046:
	case 0x200008a:
	case 0x5800000:
	case 0x5800001:
	case 0x6100008:
		return true;
	default:
		return false;
	}
}

static const struct regmap_config rt712_sdca_dmic_regmap = {
	.reg_bits = 32,
	.val_bits = 8,
	.readable_reg = rt712_sdca_dmic_readable_register,
	.volatile_reg = rt712_sdca_dmic_volatile_register,
	.max_register = 0x40981300,
	.reg_defaults = rt712_sdca_dmic_reg_defaults,
	.num_reg_defaults = ARRAY_SIZE(rt712_sdca_dmic_reg_defaults),
	.cache_type = REGCACHE_MAPLE,
	.use_single_read = true,
	.use_single_write = true,
};

static const struct regmap_config rt712_sdca_dmic_mbq_regmap = {
	.name = "sdw-mbq",
	.reg_bits = 32,
	.val_bits = 16,
	.readable_reg = rt712_sdca_dmic_mbq_readable_register,
	.volatile_reg = rt712_sdca_dmic_mbq_volatile_register,
	.max_register = 0x40800f14,
	.reg_defaults = rt712_sdca_dmic_mbq_defaults,
	.num_reg_defaults = ARRAY_SIZE(rt712_sdca_dmic_mbq_defaults),
	.cache_type = REGCACHE_MAPLE,
	.use_single_read = true,
	.use_single_write = true,
};

static int rt712_sdca_dmic_index_write(struct rt712_sdca_dmic_priv *rt712,
		unsigned int nid, unsigned int reg, unsigned int value)
{
	int ret;
	struct regmap *regmap = rt712->mbq_regmap;
	unsigned int addr = (nid << 20) | reg;

	ret = regmap_write(regmap, addr, value);
	if (ret < 0)
		dev_err(&rt712->slave->dev,
			"Failed to set private value: %06x <= %04x ret=%d\n",
			addr, value, ret);

	return ret;
}

static int rt712_sdca_dmic_index_read(struct rt712_sdca_dmic_priv *rt712,
		unsigned int nid, unsigned int reg, unsigned int *value)
{
	int ret;
	struct regmap *regmap = rt712->mbq_regmap;
	unsigned int addr = (nid << 20) | reg;

	ret = regmap_read(regmap, addr, value);
	if (ret < 0)
		dev_err(&rt712->slave->dev,
			"Failed to get private value: %06x => %04x ret=%d\n",
			addr, *value, ret);

	return ret;
}

static int rt712_sdca_dmic_index_update_bits(struct rt712_sdca_dmic_priv *rt712,
	unsigned int nid, unsigned int reg, unsigned int mask, unsigned int val)
{
	unsigned int tmp;
	int ret;

	ret = rt712_sdca_dmic_index_read(rt712, nid, reg, &tmp);
	if (ret < 0)
		return ret;

	set_mask_bits(&tmp, mask, val);
	return rt712_sdca_dmic_index_write(rt712, nid, reg, tmp);
}

static int rt712_sdca_dmic_io_init(struct device *dev, struct sdw_slave *slave)
{
	struct rt712_sdca_dmic_priv *rt712 = dev_get_drvdata(dev);

	if (rt712->hw_init)
		return 0;

	regcache_cache_only(rt712->regmap, false);
	regcache_cache_only(rt712->mbq_regmap, false);
	if (rt712->first_hw_init) {
		regcache_cache_bypass(rt712->regmap, true);
		regcache_cache_bypass(rt712->mbq_regmap, true);
	} else {
		/*
		 * PM runtime status is marked as 'active' only when a Slave reports as Attached
		 */

		/* update count of parent 'active' children */
		pm_runtime_set_active(&slave->dev);
	}

	pm_runtime_get_noresume(&slave->dev);

	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_ADC0A_08_PDE_FLOAT_CTL, 0x1112);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_ADC0B_11_PDE_FLOAT_CTL, 0x1111);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_DMIC1_2_PDE_FLOAT_CTL, 0x1111);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_I2S_IN_OUT_PDE_FLOAT_CTL, 0x1155);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_DMIC_ENT_FLOAT_CTL, 0x2626);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_ADC_ENT_FLOAT_CTL, 0x1e19);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_DMIC_GAIN_ENT_FLOAT_CTL0, 0x1515);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_ADC_VOL_CH_FLOAT_CTL2, 0x0304);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_DMIC_GAIN_ENT_FLOAT_CTL2, 0x0304);
	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
		RT712_HDA_LEGACY_CONFIG_CTL0, 0x0050);
	regmap_write(rt712->regmap,
		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_IT26, RT712_SDCA_CTL_VENDOR_DEF, 0), 0x01);
	rt712_sdca_dmic_index_write(rt712, RT712_ULTRA_SOUND_DET,
		RT712_ULTRA_SOUND_DETECTOR6, 0x3200);
	regmap_write(rt712->regmap, RT712_RC_CAL, 0x23);
	regmap_write(rt712->regmap, 0x2f52, 0x00);

	if (rt712->first_hw_init) {
		regcache_cache_bypass(rt712->regmap, false);
		regcache_mark_dirty(rt712->regmap);
		regcache_cache_bypass(rt712->mbq_regmap, false);
		regcache_mark_dirty(rt712->mbq_regmap);
	} else
		rt712->first_hw_init = true;

	/* Mark Slave initialization complete */
	rt712->hw_init = true;

	pm_runtime_mark_last_busy(&slave->dev);
	pm_runtime_put_autosuspend(&slave->dev);

	dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
	return 0;
}

static int rt712_sdca_dmic_set_gain_get(struct snd_kcontrol *kcontrol,
		struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	struct rt712_sdca_priv *rt712 = snd_soc_component_get_drvdata(component);
	struct rt712_sdca_dmic_kctrl_priv *p =
		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
	unsigned int regvalue, ctl, i;
	unsigned int adc_vol_flag = 0;
	const unsigned int interval_offset = 0xc0;

	if (strstr(ucontrol->id.name, "FU1E Capture Volume"))
		adc_vol_flag = 1;

	/* check all channels */
	for (i = 0; i < p->count; i++) {
		regmap_read(rt712->mbq_regmap, p->reg_base + i, &regvalue);

		if (!adc_vol_flag) /* boost gain */
			ctl = regvalue / 0x0a00;
		else { /* ADC gain */
			if (adc_vol_flag)
				ctl = p->max - (((0x1e00 - regvalue) & 0xffff) / interval_offset);
			else
				ctl = p->max - (((0 - regvalue) & 0xffff) / interval_offset);
		}

		ucontrol->value.integer.value[i] = ctl;
	}

	return 0;
}

static int rt712_sdca_dmic_set_gain_put(struct snd_kcontrol *kcontrol,
		struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	struct rt712_sdca_dmic_kctrl_priv *p =
		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
	struct rt712_sdca_priv *rt712 = snd_soc_component_get_drvdata(component);
	unsigned int gain_val[4];
	unsigned int i, adc_vol_flag = 0, changed = 0;
	unsigned int regvalue[4];
	const unsigned int interval_offset = 0xc0;
	int err;

	if (strstr(ucontrol->id.name, "FU1E Capture Volume"))
		adc_vol_flag = 1;

	/* check all channels */
	for (i = 0; i < p->count; i++) {
		regmap_read(rt712->mbq_regmap, p->reg_base + i, &regvalue[i]);

		gain_val[i] = ucontrol->value.integer.value[i];
		if (gain_val[i] > p->max)
			gain_val[i] = p->max;

		if (!adc_vol_flag) /* boost gain */
			gain_val[i] = gain_val[i] * 0x0a00;
		else { /* ADC gain */
			gain_val[i] = 0x1e00 - ((p->max - gain_val[i]) * interval_offset);
			gain_val[i] &= 0xffff;
		}

		if (regvalue[i] != gain_val[i])
			changed = 1;
	}

	if (!changed)
		return 0;

	for (i = 0; i < p->count; i++) {
		err = regmap_write(rt712->mbq_regmap, p->reg_base + i, gain_val[i]);
		if (err < 0)
			dev_err(&rt712->slave->dev, "0x%08x can't be set\n", p->reg_base + i);
	}

	return changed;
}

static int rt712_sdca_set_fu1e_capture_ctl(struct rt712_sdca_dmic_priv *rt712)
{
	int err, i;
	unsigned int ch_mute;

	for (i = 0; i < ARRAY_SIZE(rt712->fu1e_mixer_mute); i++) {
		ch_mute = (rt712->fu1e_dapm_mute || rt712->fu1e_mixer_mute[i]) ? 0x01 : 0x00;
		err = regmap_write(rt712->regmap,
				SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E,
				RT712_SDCA_CTL_FU_MUTE, CH_01) + i, ch_mute);
		if (err < 0)
			return err;
	}

	return 0;
}

static int rt712_sdca_dmic_fu1e_capture_get(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
	struct rt712_sdca_dmic_kctrl_priv *p =
		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
	unsigned int i;

	for (i = 0; i < p->count; i++)
		ucontrol->value.integer.value[i] = !rt712->fu1e_mixer_mute[i];

	return 0;
}

static int rt712_sdca_dmic_fu1e_capture_put(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
	struct rt712_sdca_dmic_kctrl_priv *p =
		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
	int err, changed = 0, i;

	for (i = 0; i < p->count; i++) {
		if (rt712->fu1e_mixer_mute[i] != !ucontrol->value.integer.value[i])
			changed = 1;
		rt712->fu1e_mixer_mute[i] = !ucontrol->value.integer.value[i];
	}

	err = rt712_sdca_set_fu1e_capture_ctl(rt712);
	if (err < 0)
		return err;

	return changed;
}

static int rt712_sdca_fu_info(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
{
	struct rt712_sdca_dmic_kctrl_priv *p =
		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;

	if (p->max == 1)
		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	else
		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = p->count;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = p->max;
	return 0;
}

#define RT712_SDCA_PR_VALUE(xreg_base, xcount, xmax, xinvert) \
	((unsigned long)&(struct rt712_sdca_dmic_kctrl_priv) \
		{.reg_base = xreg_base, .count = xcount, .max = xmax, \
		.invert = xinvert})

#define RT712_SDCA_FU_CTRL(xname, reg_base, xmax, xinvert, xcount) \
{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.info = rt712_sdca_fu_info, \
	.get = rt712_sdca_dmic_fu1e_capture_get, \
	.put = rt712_sdca_dmic_fu1e_capture_put, \
	.private_value = RT712_SDCA_PR_VALUE(reg_base, xcount, xmax, xinvert)}

#define RT712_SDCA_EXT_TLV(xname, reg_base, xhandler_get,\
	 xhandler_put, xcount, xmax, tlv_array) \
{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
		 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
	.tlv.p = (tlv_array), \
	.info = rt712_sdca_fu_info, \
	.get = xhandler_get, .put = xhandler_put, \
	.private_value = RT712_SDCA_PR_VALUE(reg_base, xcount, xmax, 0) }

static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -1725, 75, 0);
static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0);

static const struct snd_kcontrol_new rt712_sdca_dmic_snd_controls[] = {
	RT712_SDCA_FU_CTRL("FU1E Capture Switch",
		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_MUTE, CH_01),
		1, 1, 4),
	RT712_SDCA_EXT_TLV("FU1E Capture Volume",
		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_01),
		rt712_sdca_dmic_set_gain_get, rt712_sdca_dmic_set_gain_put, 4, 0x3f, in_vol_tlv),
	RT712_SDCA_EXT_TLV("FU15 Boost Volume",
		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_01),
		rt712_sdca_dmic_set_gain_get, rt712_sdca_dmic_set_gain_put, 4, 3, mic_vol_tlv),
};

static int rt712_sdca_dmic_mux_get(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component =
		snd_soc_dapm_kcontrol_component(kcontrol);
	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
	unsigned int val = 0, mask_sft;

	if (strstr(ucontrol->id.name, "ADC 25 Mux"))
		mask_sft = 8;
	else if (strstr(ucontrol->id.name, "ADC 26 Mux"))
		mask_sft = 4;
	else
		return -EINVAL;

	rt712_sdca_dmic_index_read(rt712, RT712_VENDOR_HDA_CTL,
		RT712_HDA_LEGACY_MUX_CTL0, &val);

	ucontrol->value.enumerated.item[0] = (val >> mask_sft) & 0x7;

	return 0;
}

static int rt712_sdca_dmic_mux_put(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component =
		snd_soc_dapm_kcontrol_component(kcontrol);
	struct snd_soc_dapm_context *dapm =
		snd_soc_dapm_kcontrol_dapm(kcontrol);
	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
	unsigned int *item = ucontrol->value.enumerated.item;
	unsigned int val, val2 = 0, change, mask_sft;

	if (item[0] >= e->items)
		return -EINVAL;

	if (strstr(ucontrol->id.name, "ADC 25 Mux"))
		mask_sft = 8;
	else if (strstr(ucontrol->id.name, "ADC 26 Mux"))
		mask_sft = 4;
	else
		return -EINVAL;

	val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;

	rt712_sdca_dmic_index_read(rt712, RT712_VENDOR_HDA_CTL,
		RT712_HDA_LEGACY_MUX_CTL0, &val2);
	val2 = (0x7 << mask_sft) & val2;

	if (val == val2)
		change = 0;
	else
		change = 1;

	if (change)
		rt712_sdca_dmic_index_update_bits(rt712, RT712_VENDOR_HDA_CTL,
			RT712_HDA_LEGACY_MUX_CTL0, 0x7 << mask_sft,
			val << mask_sft);

	snd_soc_dapm_mux_update_power(dapm, kcontrol,
		item[0], e, NULL);

	return change;
}

static const char * const adc_mux_text[] = {
	"DMIC1",
	"DMIC2",
};

static SOC_ENUM_SINGLE_DECL(
	rt712_adc25_enum, SND_SOC_NOPM, 0, adc_mux_text);

static SOC_ENUM_SINGLE_DECL(
	rt712_adc26_enum, SND_SOC_NOPM, 0, adc_mux_text);

static const struct snd_kcontrol_new rt712_sdca_dmic_adc25_mux =
	SOC_DAPM_ENUM_EXT("ADC 25 Mux", rt712_adc25_enum,
			rt712_sdca_dmic_mux_get, rt712_sdca_dmic_mux_put);

static const struct snd_kcontrol_new rt712_sdca_dmic_adc26_mux =
	SOC_DAPM_ENUM_EXT("ADC 26 Mux", rt712_adc26_enum,
			rt712_sdca_dmic_mux_get, rt712_sdca_dmic_mux_put);

static int rt712_sdca_dmic_fu1e_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_component *component =
		snd_soc_dapm_to_component(w->dapm);
	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);

	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
		rt712->fu1e_dapm_mute = false;
		rt712_sdca_set_fu1e_capture_ctl(rt712);
		break;
	case SND_SOC_DAPM_PRE_PMD:
		rt712->fu1e_dapm_mute = true;
		rt712_sdca_set_fu1e_capture_ctl(rt712);
		break;
	}
	return 0;
}

static int rt712_sdca_dmic_pde11_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_component *component =
		snd_soc_dapm_to_component(w->dapm);
	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
	unsigned char ps0 = 0x0, ps3 = 0x3;

	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
		regmap_write(rt712->regmap,
			SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PDE11,
				RT712_SDCA_CTL_REQ_POWER_STATE, 0),
				ps0);
		break;
	case SND_SOC_DAPM_PRE_PMD:
		regmap_write(rt712->regmap,
			SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PDE11,
				RT712_SDCA_CTL_REQ_POWER_STATE, 0),
				ps3);
		break;
	}
	return 0;
}

static const struct snd_soc_dapm_widget rt712_sdca_dmic_dapm_widgets[] = {
	SND_SOC_DAPM_INPUT("DMIC1"),
	SND_SOC_DAPM_INPUT("DMIC2"),

	SND_SOC_DAPM_SUPPLY("PDE 11", SND_SOC_NOPM, 0, 0,
		rt712_sdca_dmic_pde11_event,
		SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),

	SND_SOC_DAPM_ADC_E("FU 1E", NULL, SND_SOC_NOPM, 0, 0,
		rt712_sdca_dmic_fu1e_event,
		SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
	SND_SOC_DAPM_MUX("ADC 25 Mux", SND_SOC_NOPM, 0, 0,
		&rt712_sdca_dmic_adc25_mux),
	SND_SOC_DAPM_MUX("ADC 26 Mux", SND_SOC_NOPM, 0, 0,
		&rt712_sdca_dmic_adc26_mux),

	SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),
};

static const struct snd_soc_dapm_route rt712_sdca_dmic_audio_map[] = {
	{"DP2TX", NULL, "FU 1E"},

	{"FU 1E", NULL, "PDE 11"},
	{"FU 1E", NULL, "ADC 25 Mux"},
	{"FU 1E", NULL, "ADC 26 Mux"},
	{"ADC 25 Mux", "DMIC1", "DMIC1"},
	{"ADC 25 Mux", "DMIC2", "DMIC2"},
	{"ADC 26 Mux", "DMIC1", "DMIC1"},
	{"ADC 26 Mux", "DMIC2", "DMIC2"},
};

static int rt712_sdca_dmic_probe(struct snd_soc_component *component)
{
	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
	int ret;

	rt712->component = component;

	if (!rt712->first_hw_init)
		return 0;

	ret = pm_runtime_resume(component->dev);
	if (ret < 0 && ret != -EACCES)
		return ret;

	return 0;
}

static const struct snd_soc_component_driver soc_sdca_dev_rt712_dmic = {
	.probe = rt712_sdca_dmic_probe,
	.controls = rt712_sdca_dmic_snd_controls,
	.num_controls = ARRAY_SIZE(rt712_sdca_dmic_snd_controls),
	.dapm_widgets = rt712_sdca_dmic_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(rt712_sdca_dmic_dapm_widgets),
	.dapm_routes = rt712_sdca_dmic_audio_map,
	.num_dapm_routes = ARRAY_SIZE(rt712_sdca_dmic_audio_map),
	.endianness = 1,
};

static int rt712_sdca_dmic_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
				int direction)
{
	snd_soc_dai_dma_data_set(dai, direction, sdw_stream);

	return 0;
}

static void rt712_sdca_dmic_shutdown(struct snd_pcm_substream *substream,
				struct snd_soc_dai *dai)
{
	snd_soc_dai_set_dma_data(dai, substream, NULL);
}

static int rt712_sdca_dmic_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 rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
	struct sdw_stream_config stream_config;
	struct sdw_port_config port_config;
	struct sdw_stream_runtime *sdw_stream;
	int retval, num_channels;
	unsigned int sampling_rate;

	dev_dbg(dai->dev, "%s %s", __func__, dai->name);
	sdw_stream = snd_soc_dai_get_dma_data(dai, substream);

	if (!sdw_stream)
		return -EINVAL;

	if (!rt712->slave)
		return -EINVAL;

	stream_config.frame_rate = params_rate(params);
	stream_config.ch_count = params_channels(params);
	stream_config.bps = snd_pcm_format_width(params_format(params));
	stream_config.direction = SDW_DATA_DIR_TX;

	num_channels = params_channels(params);
	port_config.ch_mask = GENMASK(num_channels - 1, 0);
	port_config.num = 2;

	retval = sdw_stream_add_slave(rt712->slave, &stream_config,
					&port_config, 1, sdw_stream);
	if (retval) {
		dev_err(dai->dev, "Unable to configure port\n");
		return retval;
	}

	if (params_channels(params) > 4) {
		dev_err(component->dev, "Unsupported channels %d\n",
			params_channels(params));
		return -EINVAL;
	}

	/* sampling rate configuration */
	switch (params_rate(params)) {
	case 16000:
		sampling_rate = RT712_SDCA_RATE_16000HZ;
		break;
	case 32000:
		sampling_rate = RT712_SDCA_RATE_32000HZ;
		break;
	case 44100:
		sampling_rate = RT712_SDCA_RATE_44100HZ;
		break;
	case 48000:
		sampling_rate = RT712_SDCA_RATE_48000HZ;
		break;
	case 96000:
		sampling_rate = RT712_SDCA_RATE_96000HZ;
		break;
	case 192000:
		sampling_rate = RT712_SDCA_RATE_192000HZ;
		break;
	default:
		dev_err(component->dev, "Rate %d is not supported\n",
			params_rate(params));
		return -EINVAL;
	}

	/* set sampling frequency */
	regmap_write(rt712->regmap,
		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_CS1F, RT712_SDCA_CTL_SAMPLE_FREQ_INDEX, 0),
		sampling_rate);
	regmap_write(rt712->regmap,
		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_CS1C, RT712_SDCA_CTL_SAMPLE_FREQ_INDEX, 0),
		sampling_rate);

	return 0;
}

static int rt712_sdca_dmic_hw_free(struct snd_pcm_substream *substream,
				struct snd_soc_dai *dai)
{
	struct snd_soc_component *component = dai->component;
	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
	struct sdw_stream_runtime *sdw_stream =
		snd_soc_dai_get_dma_data(dai, substream);

	if (!rt712->slave)
		return -EINVAL;

	sdw_stream_remove_slave(rt712->slave, sdw_stream);
	return 0;
}

#define RT712_STEREO_RATES (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
			SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000)
#define RT712_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
			SNDRV_PCM_FMTBIT_S24_LE)

static const struct snd_soc_dai_ops rt712_sdca_dmic_ops = {
	.hw_params	= rt712_sdca_dmic_hw_params,
	.hw_free	= rt712_sdca_dmic_hw_free,
	.set_stream	= rt712_sdca_dmic_set_sdw_stream,
	.shutdown	= rt712_sdca_dmic_shutdown,
};

static struct snd_soc_dai_driver rt712_sdca_dmic_dai[] = {
	{
		.name = "rt712-sdca-dmic-aif1",
		.id = RT712_AIF1,
		.capture = {
			.stream_name = "DP2 Capture",
			.channels_min = 1,
			.channels_max = 4,
			.rates = RT712_STEREO_RATES,
			.formats = RT712_FORMATS,
		},
		.ops = &rt712_sdca_dmic_ops,
	},
};

static int rt712_sdca_dmic_init(struct device *dev, struct regmap *regmap,
			struct regmap *mbq_regmap, struct sdw_slave *slave)
{
	struct rt712_sdca_dmic_priv *rt712;
	int ret;

	rt712 = devm_kzalloc(dev, sizeof(*rt712), GFP_KERNEL);
	if (!rt712)
		return -ENOMEM;

	dev_set_drvdata(dev, rt712);
	rt712->slave = slave;
	rt712->regmap = regmap;
	rt712->mbq_regmap = mbq_regmap;

	regcache_cache_only(rt712->regmap, true);
	regcache_cache_only(rt712->mbq_regmap, true);

	/*
	 * Mark hw_init to false
	 * HW init will be performed when device reports present
	 */
	rt712->hw_init = false;
	rt712->first_hw_init = false;
	rt712->fu1e_dapm_mute = true;
	rt712->fu1e_mixer_mute[0] = rt712->fu1e_mixer_mute[1] =
		rt712->fu1e_mixer_mute[2] = rt712->fu1e_mixer_mute[3] = true;

	ret =  devm_snd_soc_register_component(dev,
			&soc_sdca_dev_rt712_dmic,
			rt712_sdca_dmic_dai,
			ARRAY_SIZE(rt712_sdca_dmic_dai));
	if (ret < 0)
		return ret;

	/* set autosuspend parameters */
	pm_runtime_set_autosuspend_delay(dev, 3000);
	pm_runtime_use_autosuspend(dev);

	/* make sure the device does not suspend immediately */
	pm_runtime_mark_last_busy(dev);

	pm_runtime_enable(dev);

	/* important note: the device is NOT tagged as 'active' and will remain
	 * 'suspended' until the hardware is enumerated/initialized. This is required
	 * to make sure the ASoC framework use of pm_runtime_get_sync() does not silently
	 * fail with -EACCESS because of race conditions between card creation and enumeration
	 */

	dev_dbg(dev, "%s\n", __func__);

	return 0;
}


static int rt712_sdca_dmic_update_status(struct sdw_slave *slave,
				enum sdw_slave_status status)
{
	struct rt712_sdca_dmic_priv *rt712 = dev_get_drvdata(&slave->dev);

	if (status == SDW_SLAVE_UNATTACHED)
		rt712->hw_init = false;

	/*
	 * Perform initialization only if slave status is present and
	 * hw_init flag is false
	 */
	if (rt712->hw_init || status != SDW_SLAVE_ATTACHED)
		return 0;

	/* perform I/O transfers required for Slave initialization */
	return rt712_sdca_dmic_io_init(&slave->dev, slave);
}

static int rt712_sdca_dmic_read_prop(struct sdw_slave *slave)
{
	struct sdw_slave_prop *prop = &slave->prop;
	int nval, i;
	u32 bit;
	unsigned long addr;
	struct sdw_dpn_prop *dpn;

	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;

	prop->paging_support = true;

	/* first we need to allocate memory for set bits in port lists */
	prop->source_ports = BIT(2); /* BITMAP: 00000100 */
	prop->sink_ports = 0;

	nval = hweight32(prop->source_ports);
	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
		sizeof(*prop->src_dpn_prop), GFP_KERNEL);
	if (!prop->src_dpn_prop)
		return -ENOMEM;

	i = 0;
	dpn = prop->src_dpn_prop;
	addr = prop->source_ports;
	for_each_set_bit(bit, &addr, 32) {
		dpn[i].num = bit;
		dpn[i].type = SDW_DPN_FULL;
		dpn[i].simple_ch_prep_sm = true;
		dpn[i].ch_prep_timeout = 10;
		i++;
	}

	/* set the timeout values */
	prop->clk_stop_timeout = 200;

	/* wake-up event */
	prop->wake_capable = 1;

	return 0;
}

static const struct sdw_device_id rt712_sdca_dmic_id[] = {
	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1712, 0x3, 0x1, 0),
	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1713, 0x3, 0x1, 0),
	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1716, 0x3, 0x1, 0),
	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1717, 0x3, 0x1, 0),
	{},
};
MODULE_DEVICE_TABLE(sdw, rt712_sdca_dmic_id);

static int __maybe_unused rt712_sdca_dmic_dev_suspend(struct device *dev)
{
	struct rt712_sdca_dmic_priv *rt712 = dev_get_drvdata(dev);

	if (!rt712->hw_init)
		return 0;

	regcache_cache_only(rt712->regmap, true);
	regcache_cache_only(rt712->mbq_regmap, true);

	return 0;
}

static int __maybe_unused rt712_sdca_dmic_dev_system_suspend(struct device *dev)
{
	struct rt712_sdca_dmic_priv *rt712_sdca = dev_get_drvdata(dev);

	if (!rt712_sdca->hw_init)
		return 0;

	return rt712_sdca_dmic_dev_suspend(dev);
}

#define RT712_PROBE_TIMEOUT 5000

static int __maybe_unused rt712_sdca_dmic_dev_resume(struct device *dev)
{
	struct sdw_slave *slave = dev_to_sdw_dev(dev);
	struct rt712_sdca_dmic_priv *rt712 = dev_get_drvdata(dev);
	unsigned long time;

	if (!rt712->first_hw_init)
		return 0;

	if (!slave->unattach_request)
		goto regmap_sync;

	time = wait_for_completion_timeout(&slave->initialization_complete,
				msecs_to_jiffies(RT712_PROBE_TIMEOUT));
	if (!time) {
		dev_err(&slave->dev, "Initialization not complete, timed out\n");
		sdw_show_ping_status(slave->bus, true);

		return -ETIMEDOUT;
	}

regmap_sync:
	slave->unattach_request = 0;
	regcache_cache_only(rt712->regmap, false);
	regcache_sync(rt712->regmap);
	regcache_cache_only(rt712->mbq_regmap, false);
	regcache_sync(rt712->mbq_regmap);
	return 0;
}

static const struct dev_pm_ops rt712_sdca_dmic_pm = {
	SET_SYSTEM_SLEEP_PM_OPS(rt712_sdca_dmic_dev_system_suspend, rt712_sdca_dmic_dev_resume)
	SET_RUNTIME_PM_OPS(rt712_sdca_dmic_dev_suspend, rt712_sdca_dmic_dev_resume, NULL)
};


static const struct sdw_slave_ops rt712_sdca_dmic_slave_ops = {
	.read_prop = rt712_sdca_dmic_read_prop,
	.update_status = rt712_sdca_dmic_update_status,
};

static int rt712_sdca_dmic_sdw_probe(struct sdw_slave *slave,
				const struct sdw_device_id *id)
{
	struct regmap *regmap, *mbq_regmap;

	/* Regmap Initialization */
	mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt712_sdca_dmic_mbq_regmap);
	if (IS_ERR(mbq_regmap))
		return PTR_ERR(mbq_regmap);

	regmap = devm_regmap_init_sdw(slave, &rt712_sdca_dmic_regmap);
	if (IS_ERR(regmap))
		return PTR_ERR(regmap);

	return rt712_sdca_dmic_init(&slave->dev, regmap, mbq_regmap, slave);
}

static int rt712_sdca_dmic_sdw_remove(struct sdw_slave *slave)
{
	pm_runtime_disable(&slave->dev);

	return 0;
}

static struct sdw_driver rt712_sdca_dmic_sdw_driver = {
	.driver = {
		.name = "rt712-sdca-dmic",
		.owner = THIS_MODULE,
		.pm = &rt712_sdca_dmic_pm,
	},
	.probe = rt712_sdca_dmic_sdw_probe,
	.remove = rt712_sdca_dmic_sdw_remove,
	.ops = &rt712_sdca_dmic_slave_ops,
	.id_table = rt712_sdca_dmic_id,
};
module_sdw_driver(rt712_sdca_dmic_sdw_driver);

MODULE_DESCRIPTION("ASoC RT712 SDCA DMIC SDW driver");
MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
MODULE_LICENSE("GPL");