sound/soc/codecs/cpcap.c

// SPDX-License-Identifier: GPL-2.0
/*
 * ALSA SoC CPCAP codec driver
 *
 * Copyright (C) 2017 - 2018 Sebastian Reichel <sre@kernel.org>
 *
 * Very loosely based on original driver from Motorola:
 * Copyright (C) 2007 - 2009 Motorola, Inc.
 */

#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/platform_device.h>
#include <linux/mfd/motorola-cpcap.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/tlv.h>

/* Register 513 CPCAP_REG_CC     --- CODEC */
#define CPCAP_BIT_CDC_CLK2                15
#define CPCAP_BIT_CDC_CLK1                14
#define CPCAP_BIT_CDC_CLK0                13
#define CPCAP_BIT_CDC_SR3                 12
#define CPCAP_BIT_CDC_SR2                 11
#define CPCAP_BIT_CDC_SR1                 10
#define CPCAP_BIT_CDC_SR0                 9
#define CPCAP_BIT_CDC_CLOCK_TREE_RESET    8
#define CPCAP_BIT_MIC2_CDC_EN             7
#define CPCAP_BIT_CDC_EN_RX               6
#define CPCAP_BIT_DF_RESET                5
#define CPCAP_BIT_MIC1_CDC_EN             4
#define CPCAP_BIT_AUDOHPF_1		  3
#define CPCAP_BIT_AUDOHPF_0		  2
#define CPCAP_BIT_AUDIHPF_1		  1
#define CPCAP_BIT_AUDIHPF_0		  0

/* Register 514 CPCAP_REG_CDI    --- CODEC Digital Audio Interface */
#define CPCAP_BIT_CDC_PLL_SEL             15
#define CPCAP_BIT_CLK_IN_SEL              13
#define CPCAP_BIT_DIG_AUD_IN              12
#define CPCAP_BIT_CDC_CLK_EN              11
#define CPCAP_BIT_CDC_DIG_AUD_FS1         10
#define CPCAP_BIT_CDC_DIG_AUD_FS0         9
#define CPCAP_BIT_MIC2_TIMESLOT2          8
#define CPCAP_BIT_MIC2_TIMESLOT1          7
#define CPCAP_BIT_MIC2_TIMESLOT0          6
#define CPCAP_BIT_MIC1_RX_TIMESLOT2       5
#define CPCAP_BIT_MIC1_RX_TIMESLOT1       4
#define CPCAP_BIT_MIC1_RX_TIMESLOT0       3
#define CPCAP_BIT_FS_INV                  2
#define CPCAP_BIT_CLK_INV                 1
#define CPCAP_BIT_SMB_CDC                 0

/* Register 515 CPCAP_REG_SDAC   --- Stereo DAC */
#define CPCAP_BIT_FSYNC_CLK_IN_COMMON     11
#define CPCAP_BIT_SLAVE_PLL_CLK_INPUT     10
#define CPCAP_BIT_ST_CLOCK_TREE_RESET     9
#define CPCAP_BIT_DF_RESET_ST_DAC         8
#define CPCAP_BIT_ST_SR3                  7
#define CPCAP_BIT_ST_SR2                  6
#define CPCAP_BIT_ST_SR1                  5
#define CPCAP_BIT_ST_SR0                  4
#define CPCAP_BIT_ST_DAC_CLK2             3
#define CPCAP_BIT_ST_DAC_CLK1             2
#define CPCAP_BIT_ST_DAC_CLK0             1
#define CPCAP_BIT_ST_DAC_EN               0

/* Register 516 CPCAP_REG_SDACDI --- Stereo DAC Digital Audio Interface */
#define CPCAP_BIT_ST_L_TIMESLOT2          13
#define CPCAP_BIT_ST_L_TIMESLOT1          12
#define CPCAP_BIT_ST_L_TIMESLOT0          11
#define CPCAP_BIT_ST_R_TIMESLOT2          10
#define CPCAP_BIT_ST_R_TIMESLOT1          9
#define CPCAP_BIT_ST_R_TIMESLOT0          8
#define CPCAP_BIT_ST_DAC_CLK_IN_SEL       7
#define CPCAP_BIT_ST_FS_INV               6
#define CPCAP_BIT_ST_CLK_INV              5
#define CPCAP_BIT_ST_DIG_AUD_FS1          4
#define CPCAP_BIT_ST_DIG_AUD_FS0          3
#define CPCAP_BIT_DIG_AUD_IN_ST_DAC       2
#define CPCAP_BIT_ST_CLK_EN               1
#define CPCAP_BIT_SMB_ST_DAC              0

/* Register 517 CPCAP_REG_TXI    --- TX Interface */
#define CPCAP_BIT_PTT_TH		15
#define CPCAP_BIT_PTT_CMP_EN		14
#define CPCAP_BIT_HS_ID_TX		13
#define CPCAP_BIT_MB_ON2		12
#define CPCAP_BIT_MB_ON1L		11
#define CPCAP_BIT_MB_ON1R		10
#define CPCAP_BIT_RX_L_ENCODE		9
#define CPCAP_BIT_RX_R_ENCODE		8
#define CPCAP_BIT_MIC2_MUX		7
#define CPCAP_BIT_MIC2_PGA_EN		6
#define CPCAP_BIT_CDET_DIS		5
#define CPCAP_BIT_EMU_MIC_MUX		4
#define CPCAP_BIT_HS_MIC_MUX		3
#define CPCAP_BIT_MIC1_MUX		2
#define CPCAP_BIT_MIC1_PGA_EN		1
#define CPCAP_BIT_DLM			0

/* Register 518 CPCAP_REG_TXMP   --- Mic Gain */
#define CPCAP_BIT_MB_BIAS_R1              11
#define CPCAP_BIT_MB_BIAS_R0              10
#define CPCAP_BIT_MIC2_GAIN_4             9
#define CPCAP_BIT_MIC2_GAIN_3             8
#define CPCAP_BIT_MIC2_GAIN_2             7
#define CPCAP_BIT_MIC2_GAIN_1             6
#define CPCAP_BIT_MIC2_GAIN_0             5
#define CPCAP_BIT_MIC1_GAIN_4             4
#define CPCAP_BIT_MIC1_GAIN_3             3
#define CPCAP_BIT_MIC1_GAIN_2             2
#define CPCAP_BIT_MIC1_GAIN_1             1
#define CPCAP_BIT_MIC1_GAIN_0             0

/* Register 519 CPCAP_REG_RXOA   --- RX Output Amplifier */
#define CPCAP_BIT_UNUSED_519_15		15
#define CPCAP_BIT_UNUSED_519_14		14
#define CPCAP_BIT_UNUSED_519_13		13
#define CPCAP_BIT_STDAC_LOW_PWR_DISABLE	12
#define CPCAP_BIT_HS_LOW_PWR		11
#define CPCAP_BIT_HS_ID_RX		10
#define CPCAP_BIT_ST_HS_CP_EN		9
#define CPCAP_BIT_EMU_SPKR_R_EN		8
#define CPCAP_BIT_EMU_SPKR_L_EN		7
#define CPCAP_BIT_HS_L_EN		6
#define CPCAP_BIT_HS_R_EN		5
#define CPCAP_BIT_A4_LINEOUT_L_EN	4
#define CPCAP_BIT_A4_LINEOUT_R_EN	3
#define CPCAP_BIT_A2_LDSP_L_EN		2
#define CPCAP_BIT_A2_LDSP_R_EN		1
#define CPCAP_BIT_A1_EAR_EN		0

/* Register 520 CPCAP_REG_RXVC   --- RX Volume Control */
#define CPCAP_BIT_VOL_EXT3                15
#define CPCAP_BIT_VOL_EXT2                14
#define CPCAP_BIT_VOL_EXT1                13
#define CPCAP_BIT_VOL_EXT0                12
#define CPCAP_BIT_VOL_DAC3                11
#define CPCAP_BIT_VOL_DAC2                10
#define CPCAP_BIT_VOL_DAC1                9
#define CPCAP_BIT_VOL_DAC0                8
#define CPCAP_BIT_VOL_DAC_LSB_1dB1        7
#define CPCAP_BIT_VOL_DAC_LSB_1dB0        6
#define CPCAP_BIT_VOL_CDC3                5
#define CPCAP_BIT_VOL_CDC2                4
#define CPCAP_BIT_VOL_CDC1                3
#define CPCAP_BIT_VOL_CDC0                2
#define CPCAP_BIT_VOL_CDC_LSB_1dB1        1
#define CPCAP_BIT_VOL_CDC_LSB_1dB0        0

/* Register 521 CPCAP_REG_RXCOA  --- Codec to Output Amp Switches */
#define CPCAP_BIT_PGA_CDC_EN              10
#define CPCAP_BIT_CDC_SW                  9
#define CPCAP_BIT_PGA_OUTR_USBDP_CDC_SW   8
#define CPCAP_BIT_PGA_OUTL_USBDN_CDC_SW   7
#define CPCAP_BIT_ALEFT_HS_CDC_SW         6
#define CPCAP_BIT_ARIGHT_HS_CDC_SW        5
#define CPCAP_BIT_A4_LINEOUT_L_CDC_SW     4
#define CPCAP_BIT_A4_LINEOUT_R_CDC_SW     3
#define CPCAP_BIT_A2_LDSP_L_CDC_SW        2
#define CPCAP_BIT_A2_LDSP_R_CDC_SW        1
#define CPCAP_BIT_A1_EAR_CDC_SW           0

/* Register 522 CPCAP_REG_RXSDOA --- RX Stereo DAC to Output Amp Switches */
#define CPCAP_BIT_PGA_DAC_EN              12
#define CPCAP_BIT_ST_DAC_SW               11
#define CPCAP_BIT_MONO_DAC1               10
#define CPCAP_BIT_MONO_DAC0               9
#define CPCAP_BIT_PGA_OUTR_USBDP_DAC_SW   8
#define CPCAP_BIT_PGA_OUTL_USBDN_DAC_SW   7
#define CPCAP_BIT_ALEFT_HS_DAC_SW         6
#define CPCAP_BIT_ARIGHT_HS_DAC_SW        5
#define CPCAP_BIT_A4_LINEOUT_L_DAC_SW     4
#define CPCAP_BIT_A4_LINEOUT_R_DAC_SW     3
#define CPCAP_BIT_A2_LDSP_L_DAC_SW        2
#define CPCAP_BIT_A2_LDSP_R_DAC_SW        1
#define CPCAP_BIT_A1_EAR_DAC_SW           0

/* Register 523 CPCAP_REG_RXEPOA --- RX External PGA to Output Amp Switches */
#define CPCAP_BIT_PGA_EXT_L_EN            14
#define CPCAP_BIT_PGA_EXT_R_EN            13
#define CPCAP_BIT_PGA_IN_L_SW             12
#define CPCAP_BIT_PGA_IN_R_SW             11
#define CPCAP_BIT_MONO_EXT1               10
#define CPCAP_BIT_MONO_EXT0               9
#define CPCAP_BIT_PGA_OUTR_USBDP_EXT_SW   8
#define CPCAP_BIT_PGA_OUTL_USBDN_EXT_SW   7
#define CPCAP_BIT_ALEFT_HS_EXT_SW         6
#define CPCAP_BIT_ARIGHT_HS_EXT_SW        5
#define CPCAP_BIT_A4_LINEOUT_L_EXT_SW     4
#define CPCAP_BIT_A4_LINEOUT_R_EXT_SW     3
#define CPCAP_BIT_A2_LDSP_L_EXT_SW        2
#define CPCAP_BIT_A2_LDSP_R_EXT_SW        1
#define CPCAP_BIT_A1_EAR_EXT_SW           0

/* Register 525 CPCAP_REG_A2LA --- SPK Amplifier and Clock Config for Headset */
#define CPCAP_BIT_NCP_CLK_SYNC            7
#define CPCAP_BIT_A2_CLK_SYNC             6
#define CPCAP_BIT_A2_FREE_RUN             5
#define CPCAP_BIT_A2_CLK2                 4
#define CPCAP_BIT_A2_CLK1                 3
#define CPCAP_BIT_A2_CLK0                 2
#define CPCAP_BIT_A2_CLK_IN               1
#define CPCAP_BIT_A2_CONFIG               0

#define SLEEP_ACTIVATE_POWER 2
#define CLOCK_TREE_RESET_TIME 1

/* constants for ST delay workaround */
#define STM_STDAC_ACTIVATE_RAMP_TIME   1
#define STM_STDAC_EN_TEST_PRE          0x090C
#define STM_STDAC_EN_TEST_POST         0x0000
#define STM_STDAC_EN_ST_TEST1_PRE      0x2400
#define STM_STDAC_EN_ST_TEST1_POST     0x0400

struct cpcap_reg_info {
	u16 reg;
	u16 mask;
	u16 val;
};

static const struct cpcap_reg_info cpcap_default_regs[] = {
	{ CPCAP_REG_CC, 0xFFFF, 0x0000 },
	{ CPCAP_REG_CC, 0xFFFF, 0x0000 },
	{ CPCAP_REG_CDI, 0xBFFF, 0x0000 },
	{ CPCAP_REG_SDAC, 0x0FFF, 0x0000 },
	{ CPCAP_REG_SDACDI, 0x3FFF, 0x0000 },
	{ CPCAP_REG_TXI, 0x0FDF, 0x0000 },
	{ CPCAP_REG_TXMP, 0x0FFF, 0x0400 },
	{ CPCAP_REG_RXOA, 0x01FF, 0x0000 },
	{ CPCAP_REG_RXVC, 0xFF3C, 0x0000 },
	{ CPCAP_REG_RXCOA, 0x07FF, 0x0000 },
	{ CPCAP_REG_RXSDOA, 0x1FFF, 0x0000 },
	{ CPCAP_REG_RXEPOA, 0x7FFF, 0x0000 },
	{ CPCAP_REG_A2LA, BIT(CPCAP_BIT_A2_FREE_RUN),
	  BIT(CPCAP_BIT_A2_FREE_RUN) },
};

enum cpcap_dai {
	CPCAP_DAI_HIFI,
	CPCAP_DAI_VOICE,
};

struct cpcap_audio {
	struct snd_soc_component *component;
	struct regmap *regmap;

	u16 vendor;

	int codec_clk_id;
	int codec_freq;
	int codec_format;
};

static int cpcap_st_workaround(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 cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	int err = 0;

	/* Only CPCAP from ST requires workaround */
	if (cpcap->vendor != CPCAP_VENDOR_ST)
		return 0;

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		err = regmap_write(cpcap->regmap, CPCAP_REG_TEST,
				   STM_STDAC_EN_TEST_PRE);
		if (err)
			return err;
		err = regmap_write(cpcap->regmap, CPCAP_REG_ST_TEST1,
				   STM_STDAC_EN_ST_TEST1_PRE);
		break;
	case SND_SOC_DAPM_POST_PMU:
		msleep(STM_STDAC_ACTIVATE_RAMP_TIME);

		err = regmap_write(cpcap->regmap, CPCAP_REG_ST_TEST1,
				   STM_STDAC_EN_ST_TEST1_POST);
		if (err)
			return err;
		err = regmap_write(cpcap->regmap, CPCAP_REG_TEST,
				   STM_STDAC_EN_TEST_POST);
		break;
	default:
		break;
	}

	return err;
}

/* Capture Gain Control: 0dB to 31dB in 1dB steps */
static const DECLARE_TLV_DB_SCALE(mic_gain_tlv, 0, 100, 0);

/* Playback Gain Control: -33dB to 12dB in 3dB steps */
static const DECLARE_TLV_DB_SCALE(vol_tlv, -3300, 300, 0);

static const struct snd_kcontrol_new cpcap_snd_controls[] = {
	/* Playback Gain */
	SOC_SINGLE_TLV("HiFi Playback Volume",
		CPCAP_REG_RXVC, CPCAP_BIT_VOL_DAC0, 0xF, 0, vol_tlv),
	SOC_SINGLE_TLV("Voice Playback Volume",
		CPCAP_REG_RXVC, CPCAP_BIT_VOL_CDC0, 0xF, 0, vol_tlv),
	SOC_SINGLE_TLV("Ext Playback Volume",
		CPCAP_REG_RXVC, CPCAP_BIT_VOL_EXT0, 0xF, 0, vol_tlv),

	/* Capture Gain */
	SOC_SINGLE_TLV("Mic1 Capture Volume",
		CPCAP_REG_TXMP, CPCAP_BIT_MIC1_GAIN_0, 0x1F, 0, mic_gain_tlv),
	SOC_SINGLE_TLV("Mic2 Capture Volume",
		CPCAP_REG_TXMP, CPCAP_BIT_MIC2_GAIN_0, 0x1F, 0, mic_gain_tlv),

	/* Phase Invert */
	SOC_SINGLE("Hifi Left Phase Invert Switch",
		CPCAP_REG_RXSDOA, CPCAP_BIT_MONO_DAC0, 1, 0),
	SOC_SINGLE("Ext Left Phase Invert Switch",
		CPCAP_REG_RXEPOA, CPCAP_BIT_MONO_EXT0, 1, 0),
};

static const char * const cpcap_out_mux_texts[] = {
	"Off", "Voice", "HiFi", "Ext"
};

static const char * const cpcap_in_right_mux_texts[] = {
	"Off", "Mic 1", "Headset Mic", "EMU Mic", "Ext Right"
};

static const char * const cpcap_in_left_mux_texts[] = {
	"Off", "Mic 2", "Ext Left"
};

/*
 * input muxes use unusual register layout, so that we need to use custom
 * getter/setter methods
 */
static SOC_ENUM_SINGLE_EXT_DECL(cpcap_input_left_mux_enum,
				cpcap_in_left_mux_texts);
static SOC_ENUM_SINGLE_EXT_DECL(cpcap_input_right_mux_enum,
				cpcap_in_right_mux_texts);

/*
 * mux uses same bit in CPCAP_REG_RXCOA, CPCAP_REG_RXSDOA & CPCAP_REG_RXEPOA;
 * even though the register layout makes it look like a mixer, this is a mux.
 * Enabling multiple inputs will result in no audio being forwarded.
 */
static SOC_ENUM_SINGLE_DECL(cpcap_earpiece_mux_enum, 0, 0, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_spkr_r_mux_enum, 0, 1, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_spkr_l_mux_enum, 0, 2, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_line_r_mux_enum, 0, 3, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_line_l_mux_enum, 0, 4, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_hs_r_mux_enum, 0, 5, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_hs_l_mux_enum, 0, 6, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_emu_l_mux_enum, 0, 7, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_emu_r_mux_enum, 0, 8, cpcap_out_mux_texts);

static int cpcap_output_mux_get_enum(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
	unsigned int shift = e->shift_l;
	int reg_voice, reg_hifi, reg_ext, status;
	int err;

	err = regmap_read(cpcap->regmap, CPCAP_REG_RXCOA, &reg_voice);
	if (err)
		return err;
	err = regmap_read(cpcap->regmap, CPCAP_REG_RXSDOA, &reg_hifi);
	if (err)
		return err;
	err = regmap_read(cpcap->regmap, CPCAP_REG_RXEPOA, &reg_ext);
	if (err)
		return err;

	reg_voice = (reg_voice >> shift) & 1;
	reg_hifi = (reg_hifi >> shift) & 1;
	reg_ext = (reg_ext >> shift) & 1;
	status = reg_ext << 2 | reg_hifi << 1 | reg_voice;

	switch (status) {
	case 0x04:
		ucontrol->value.enumerated.item[0] = 3;
		break;
	case 0x02:
		ucontrol->value.enumerated.item[0] = 2;
		break;
	case 0x01:
		ucontrol->value.enumerated.item[0] = 1;
		break;
	default:
		ucontrol->value.enumerated.item[0] = 0;
		break;
	}

	return 0;
}

static int cpcap_output_mux_put_enum(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	struct snd_soc_dapm_context *dapm =
		snd_soc_dapm_kcontrol_dapm(kcontrol);
	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
	unsigned int muxval = ucontrol->value.enumerated.item[0];
	unsigned int mask = BIT(e->shift_l);
	u16 reg_voice = 0x00, reg_hifi = 0x00, reg_ext = 0x00;
	int err;

	switch (muxval) {
	case 1:
		reg_voice = mask;
		break;
	case 2:
		reg_hifi = mask;
		break;
	case 3:
		reg_ext = mask;
		break;
	default:
		break;
	}

	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_RXCOA,
				 mask, reg_voice);
	if (err)
		return err;
	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_RXSDOA,
				 mask, reg_hifi);
	if (err)
		return err;
	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_RXEPOA,
				 mask, reg_ext);
	if (err)
		return err;

	snd_soc_dapm_mux_update_power(dapm, kcontrol, muxval, e, NULL);

	return 0;
}

static int cpcap_input_right_mux_get_enum(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	int regval, mask;
	int err;

	err = regmap_read(cpcap->regmap, CPCAP_REG_TXI, &regval);
	if (err)
		return err;

	mask = 0;
	mask |= BIT(CPCAP_BIT_MIC1_MUX);
	mask |= BIT(CPCAP_BIT_HS_MIC_MUX);
	mask |= BIT(CPCAP_BIT_EMU_MIC_MUX);
	mask |= BIT(CPCAP_BIT_RX_R_ENCODE);

	switch (regval & mask) {
	case BIT(CPCAP_BIT_RX_R_ENCODE):
		ucontrol->value.enumerated.item[0] = 4;
		break;
	case BIT(CPCAP_BIT_EMU_MIC_MUX):
		ucontrol->value.enumerated.item[0] = 3;
		break;
	case BIT(CPCAP_BIT_HS_MIC_MUX):
		ucontrol->value.enumerated.item[0] = 2;
		break;
	case BIT(CPCAP_BIT_MIC1_MUX):
		ucontrol->value.enumerated.item[0] = 1;
		break;
	default:
		ucontrol->value.enumerated.item[0] = 0;
		break;
	}

	return 0;
}

static int cpcap_input_right_mux_put_enum(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	struct snd_soc_dapm_context *dapm =
		snd_soc_dapm_kcontrol_dapm(kcontrol);
	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
	unsigned int muxval = ucontrol->value.enumerated.item[0];
	int regval = 0, mask;
	int err;

	mask = 0;
	mask |= BIT(CPCAP_BIT_MIC1_MUX);
	mask |= BIT(CPCAP_BIT_HS_MIC_MUX);
	mask |= BIT(CPCAP_BIT_EMU_MIC_MUX);
	mask |= BIT(CPCAP_BIT_RX_R_ENCODE);

	switch (muxval) {
	case 1:
		regval = BIT(CPCAP_BIT_MIC1_MUX);
		break;
	case 2:
		regval = BIT(CPCAP_BIT_HS_MIC_MUX);
		break;
	case 3:
		regval = BIT(CPCAP_BIT_EMU_MIC_MUX);
		break;
	case 4:
		regval = BIT(CPCAP_BIT_RX_R_ENCODE);
		break;
	default:
		break;
	}

	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_TXI,
				 mask, regval);
	if (err)
		return err;

	snd_soc_dapm_mux_update_power(dapm, kcontrol, muxval, e, NULL);

	return 0;
}

static int cpcap_input_left_mux_get_enum(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	int regval, mask;
	int err;

	err = regmap_read(cpcap->regmap, CPCAP_REG_TXI, &regval);
	if (err)
		return err;

	mask = 0;
	mask |= BIT(CPCAP_BIT_MIC2_MUX);
	mask |= BIT(CPCAP_BIT_RX_L_ENCODE);

	switch (regval & mask) {
	case BIT(CPCAP_BIT_RX_L_ENCODE):
		ucontrol->value.enumerated.item[0] = 2;
		break;
	case BIT(CPCAP_BIT_MIC2_MUX):
		ucontrol->value.enumerated.item[0] = 1;
		break;
	default:
		ucontrol->value.enumerated.item[0] = 0;
		break;
	}

	return 0;
}

static int cpcap_input_left_mux_put_enum(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	struct snd_soc_dapm_context *dapm =
		snd_soc_dapm_kcontrol_dapm(kcontrol);
	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
	unsigned int muxval = ucontrol->value.enumerated.item[0];
	int regval = 0, mask;
	int err;

	mask = 0;
	mask |= BIT(CPCAP_BIT_MIC2_MUX);
	mask |= BIT(CPCAP_BIT_RX_L_ENCODE);

	switch (muxval) {
	case 1:
		regval = BIT(CPCAP_BIT_MIC2_MUX);
		break;
	case 2:
		regval = BIT(CPCAP_BIT_RX_L_ENCODE);
		break;
	default:
		break;
	}

	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_TXI,
				 mask, regval);
	if (err)
		return err;

	snd_soc_dapm_mux_update_power(dapm, kcontrol, muxval, e, NULL);

	return 0;
}

static const struct snd_kcontrol_new cpcap_input_left_mux =
	SOC_DAPM_ENUM_EXT("Input Left", cpcap_input_left_mux_enum,
			  cpcap_input_left_mux_get_enum,
			  cpcap_input_left_mux_put_enum);
static const struct snd_kcontrol_new cpcap_input_right_mux =
	SOC_DAPM_ENUM_EXT("Input Right", cpcap_input_right_mux_enum,
			  cpcap_input_right_mux_get_enum,
			  cpcap_input_right_mux_put_enum);
static const struct snd_kcontrol_new cpcap_emu_left_mux =
	SOC_DAPM_ENUM_EXT("EMU Left", cpcap_emu_l_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_emu_right_mux =
	SOC_DAPM_ENUM_EXT("EMU Right", cpcap_emu_r_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_hs_left_mux =
	SOC_DAPM_ENUM_EXT("Headset Left", cpcap_hs_l_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_hs_right_mux =
	SOC_DAPM_ENUM_EXT("Headset Right", cpcap_hs_r_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_line_left_mux =
	SOC_DAPM_ENUM_EXT("Line Left", cpcap_line_l_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_line_right_mux =
	SOC_DAPM_ENUM_EXT("Line Right", cpcap_line_r_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_speaker_left_mux =
	SOC_DAPM_ENUM_EXT("Speaker Left", cpcap_spkr_l_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_speaker_right_mux =
	SOC_DAPM_ENUM_EXT("Speaker Right", cpcap_spkr_r_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_earpiece_mux =
	SOC_DAPM_ENUM_EXT("Earpiece", cpcap_earpiece_mux_enum,
			  cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);

static const struct snd_kcontrol_new cpcap_hifi_mono_mixer_controls[] = {
	SOC_DAPM_SINGLE("HiFi Mono Playback Switch",
		CPCAP_REG_RXSDOA, CPCAP_BIT_MONO_DAC1, 1, 0),
};
static const struct snd_kcontrol_new cpcap_ext_mono_mixer_controls[] = {
	SOC_DAPM_SINGLE("Ext Mono Playback Switch",
		CPCAP_REG_RXEPOA, CPCAP_BIT_MONO_EXT0, 1, 0),
};

static const struct snd_kcontrol_new cpcap_extr_mute_control =
	SOC_DAPM_SINGLE("Switch",
		CPCAP_REG_RXEPOA, CPCAP_BIT_PGA_IN_R_SW, 1, 0);
static const struct snd_kcontrol_new cpcap_extl_mute_control =
	SOC_DAPM_SINGLE("Switch",
		CPCAP_REG_RXEPOA, CPCAP_BIT_PGA_IN_L_SW, 1, 0);

static const struct snd_kcontrol_new cpcap_voice_loopback =
	SOC_DAPM_SINGLE("Switch",
		CPCAP_REG_TXI, CPCAP_BIT_DLM, 1, 0);

static const struct snd_soc_dapm_widget cpcap_dapm_widgets[] = {
	/* DAIs */
	SND_SOC_DAPM_AIF_IN("HiFi RX", NULL, 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("Voice RX", NULL, 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("Voice TX", NULL, 0, SND_SOC_NOPM, 0, 0),

	/* Power Supply */
	SND_SOC_DAPM_REGULATOR_SUPPLY("VAUDIO", SLEEP_ACTIVATE_POWER, 0),

	/* Highpass Filters */
	SND_SOC_DAPM_REG(snd_soc_dapm_pga, "Highpass Filter RX",
		CPCAP_REG_CC, CPCAP_BIT_AUDIHPF_0, 0x3, 0x3, 0x0),
	SND_SOC_DAPM_REG(snd_soc_dapm_pga, "Highpass Filter TX",
		CPCAP_REG_CC, CPCAP_BIT_AUDOHPF_0, 0x3, 0x3, 0x0),

	/* Clocks */
	SND_SOC_DAPM_SUPPLY("HiFi DAI Clock",
		CPCAP_REG_SDACDI, CPCAP_BIT_ST_CLK_EN, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Voice DAI Clock",
		CPCAP_REG_CDI, CPCAP_BIT_CDC_CLK_EN, 0, NULL, 0),

	/* Microphone Bias */
	SND_SOC_DAPM_SUPPLY("MIC1R Bias",
		CPCAP_REG_TXI, CPCAP_BIT_MB_ON1R, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("MIC1L Bias",
		CPCAP_REG_TXI, CPCAP_BIT_MB_ON1L, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("MIC2 Bias",
		CPCAP_REG_TXI, CPCAP_BIT_MB_ON2, 0, NULL, 0),

	/* Inputs */
	SND_SOC_DAPM_INPUT("MICR"),
	SND_SOC_DAPM_INPUT("HSMIC"),
	SND_SOC_DAPM_INPUT("EMUMIC"),
	SND_SOC_DAPM_INPUT("MICL"),
	SND_SOC_DAPM_INPUT("EXTR"),
	SND_SOC_DAPM_INPUT("EXTL"),

	/* Capture Route */
	SND_SOC_DAPM_MUX("Right Capture Route",
		SND_SOC_NOPM, 0, 0, &cpcap_input_right_mux),
	SND_SOC_DAPM_MUX("Left Capture Route",
		SND_SOC_NOPM, 0, 0, &cpcap_input_left_mux),

	/* Capture PGAs */
	SND_SOC_DAPM_PGA("Microphone 1 PGA",
		CPCAP_REG_TXI, CPCAP_BIT_MIC1_PGA_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Microphone 2 PGA",
		CPCAP_REG_TXI, CPCAP_BIT_MIC2_PGA_EN, 0, NULL, 0),

	/* ADC */
	SND_SOC_DAPM_ADC("ADC Right", NULL,
		CPCAP_REG_CC, CPCAP_BIT_MIC1_CDC_EN, 0),
	SND_SOC_DAPM_ADC("ADC Left", NULL,
		CPCAP_REG_CC, CPCAP_BIT_MIC2_CDC_EN, 0),

	/* DAC */
	SND_SOC_DAPM_DAC_E("DAC HiFi", NULL,
		CPCAP_REG_SDAC, CPCAP_BIT_ST_DAC_EN, 0,
		cpcap_st_workaround,
		SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),
	SND_SOC_DAPM_DAC_E("DAC Voice", NULL,
		CPCAP_REG_CC, CPCAP_BIT_CDC_EN_RX, 0,
		cpcap_st_workaround,
		SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),

	/* Playback PGA */
	SND_SOC_DAPM_PGA("HiFi PGA",
		CPCAP_REG_RXSDOA, CPCAP_BIT_PGA_DAC_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Voice PGA",
		CPCAP_REG_RXCOA, CPCAP_BIT_PGA_CDC_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA_E("Ext Right PGA",
		CPCAP_REG_RXEPOA, CPCAP_BIT_PGA_EXT_R_EN, 0,
		NULL, 0,
		cpcap_st_workaround,
		SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),
	SND_SOC_DAPM_PGA_E("Ext Left PGA",
		CPCAP_REG_RXEPOA, CPCAP_BIT_PGA_EXT_L_EN, 0,
		NULL, 0,
		cpcap_st_workaround,
		SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),

	/* Playback Switch */
	SND_SOC_DAPM_SWITCH("Ext Right Enable", SND_SOC_NOPM, 0, 0,
		&cpcap_extr_mute_control),
	SND_SOC_DAPM_SWITCH("Ext Left Enable", SND_SOC_NOPM, 0, 0,
		&cpcap_extl_mute_control),

	/* Loopback Switch */
	SND_SOC_DAPM_SWITCH("Voice Loopback", SND_SOC_NOPM, 0, 0,
		&cpcap_voice_loopback),

	/* Mono Mixer */
	SOC_MIXER_ARRAY("HiFi Mono Left Mixer", SND_SOC_NOPM, 0, 0,
		cpcap_hifi_mono_mixer_controls),
	SOC_MIXER_ARRAY("HiFi Mono Right Mixer", SND_SOC_NOPM, 0, 0,
		cpcap_hifi_mono_mixer_controls),
	SOC_MIXER_ARRAY("Ext Mono Left Mixer", SND_SOC_NOPM, 0, 0,
		cpcap_ext_mono_mixer_controls),
	SOC_MIXER_ARRAY("Ext Mono Right Mixer", SND_SOC_NOPM, 0, 0,
		cpcap_ext_mono_mixer_controls),

	/* Output Routes */
	SND_SOC_DAPM_MUX("Earpiece Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_earpiece_mux),
	SND_SOC_DAPM_MUX("Speaker Right Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_speaker_right_mux),
	SND_SOC_DAPM_MUX("Speaker Left Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_speaker_left_mux),
	SND_SOC_DAPM_MUX("Lineout Right Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_line_right_mux),
	SND_SOC_DAPM_MUX("Lineout Left Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_line_left_mux),
	SND_SOC_DAPM_MUX("Headset Right Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_hs_right_mux),
	SND_SOC_DAPM_MUX("Headset Left Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_hs_left_mux),
	SND_SOC_DAPM_MUX("EMU Right Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_emu_right_mux),
	SND_SOC_DAPM_MUX("EMU Left Playback Route", SND_SOC_NOPM, 0, 0,
		&cpcap_emu_left_mux),

	/* Output Amplifier */
	SND_SOC_DAPM_PGA("Earpiece PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_A1_EAR_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Speaker Right PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_A2_LDSP_R_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Speaker Left PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_A2_LDSP_L_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Lineout Right PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_A4_LINEOUT_R_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Lineout Left PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_A4_LINEOUT_L_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Headset Right PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_HS_R_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Headset Left PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_HS_L_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("EMU Right PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_EMU_SPKR_R_EN, 0, NULL, 0),
	SND_SOC_DAPM_PGA("EMU Left PGA",
		CPCAP_REG_RXOA, CPCAP_BIT_EMU_SPKR_L_EN, 0, NULL, 0),

	/* Headet Charge Pump */
	SND_SOC_DAPM_SUPPLY("Headset Charge Pump",
		CPCAP_REG_RXOA, CPCAP_BIT_ST_HS_CP_EN, 0, NULL, 0),

	/* Outputs */
	SND_SOC_DAPM_OUTPUT("EP"),
	SND_SOC_DAPM_OUTPUT("SPKR"),
	SND_SOC_DAPM_OUTPUT("SPKL"),
	SND_SOC_DAPM_OUTPUT("LINER"),
	SND_SOC_DAPM_OUTPUT("LINEL"),
	SND_SOC_DAPM_OUTPUT("HSR"),
	SND_SOC_DAPM_OUTPUT("HSL"),
	SND_SOC_DAPM_OUTPUT("EMUR"),
	SND_SOC_DAPM_OUTPUT("EMUL"),
};

static const struct snd_soc_dapm_route intercon[] = {
	/* Power Supply */
	{"HiFi PGA", NULL, "VAUDIO"},
	{"Voice PGA", NULL, "VAUDIO"},
	{"Ext Right PGA", NULL, "VAUDIO"},
	{"Ext Left PGA", NULL, "VAUDIO"},
	{"Microphone 1 PGA", NULL, "VAUDIO"},
	{"Microphone 2 PGA", NULL, "VAUDIO"},

	/* Stream -> AIF */
	{"HiFi RX", NULL, "HiFi Playback"},
	{"Voice RX", NULL, "Voice Playback"},
	{"Voice Capture", NULL, "Voice TX"},

	/* AIF clocks */
	{"HiFi RX", NULL, "HiFi DAI Clock"},
	{"Voice RX", NULL, "Voice DAI Clock"},
	{"Voice TX", NULL, "Voice DAI Clock"},

	/* Digital Loopback */
	{"Voice Loopback", "Switch", "Voice TX"},
	{"Voice RX", NULL, "Voice Loopback"},

	/* Highpass Filters */
	{"Highpass Filter RX", NULL, "Voice RX"},
	{"Voice TX", NULL, "Highpass Filter TX"},

	/* AIF -> DAC mapping */
	{"DAC HiFi", NULL, "HiFi RX"},
	{"DAC Voice", NULL, "Highpass Filter RX"},

	/* DAC -> PGA */
	{"HiFi PGA", NULL, "DAC HiFi"},
	{"Voice PGA", NULL, "DAC Voice"},

	/* Ext Input -> PGA */
	{"Ext Right PGA", NULL, "EXTR"},
	{"Ext Left PGA", NULL, "EXTL"},

	/* Ext PGA -> Ext Playback Switch */
	{"Ext Right Enable", "Switch", "Ext Right PGA"},
	{"Ext Left Enable", "Switch", "Ext Left PGA"},

	/* HiFi PGA -> Mono Mixer */
	{"HiFi Mono Left Mixer", NULL, "HiFi PGA"},
	{"HiFi Mono Left Mixer", "HiFi Mono Playback Switch", "HiFi PGA"},
	{"HiFi Mono Right Mixer", NULL, "HiFi PGA"},
	{"HiFi Mono Right Mixer", "HiFi Mono Playback Switch", "HiFi PGA"},

	/* Ext Playback Switch -> Ext Mono Mixer */
	{"Ext Mono Right Mixer", NULL, "Ext Right Enable"},
	{"Ext Mono Right Mixer", "Ext Mono Playback Switch", "Ext Left Enable"},
	{"Ext Mono Left Mixer", NULL, "Ext Left Enable"},
	{"Ext Mono Left Mixer", "Ext Mono Playback Switch", "Ext Right Enable"},

	/* HiFi Mono Mixer -> Output Route */
	{"Earpiece Playback Route", "HiFi", "HiFi Mono Right Mixer"},
	{"Speaker Right Playback Route", "HiFi", "HiFi Mono Right Mixer"},
	{"Speaker Left Playback Route", "HiFi", "HiFi Mono Left Mixer"},
	{"Lineout Right Playback Route", "HiFi", "HiFi Mono Right Mixer"},
	{"Lineout Left Playback Route", "HiFi", "HiFi Mono Left Mixer"},
	{"Headset Right Playback Route", "HiFi", "HiFi Mono Right Mixer"},
	{"Headset Left Playback Route", "HiFi", "HiFi Mono Left Mixer"},
	{"EMU Right Playback Route", "HiFi", "HiFi Mono Right Mixer"},
	{"EMU Left Playback Route", "HiFi", "HiFi Mono Left Mixer"},

	/* Voice PGA -> Output Route */
	{"Earpiece Playback Route", "Voice", "Voice PGA"},
	{"Speaker Right Playback Route", "Voice", "Voice PGA"},
	{"Speaker Left Playback Route", "Voice", "Voice PGA"},
	{"Lineout Right Playback Route", "Voice", "Voice PGA"},
	{"Lineout Left Playback Route", "Voice", "Voice PGA"},
	{"Headset Right Playback Route", "Voice", "Voice PGA"},
	{"Headset Left Playback Route", "Voice", "Voice PGA"},
	{"EMU Right Playback Route", "Voice", "Voice PGA"},
	{"EMU Left Playback Route", "Voice", "Voice PGA"},

	/* Ext Mono Mixer -> Output Route */
	{"Earpiece Playback Route", "Ext", "Ext Mono Right Mixer"},
	{"Speaker Right Playback Route", "Ext", "Ext Mono Right Mixer"},
	{"Speaker Left Playback Route", "Ext", "Ext Mono Left Mixer"},
	{"Lineout Right Playback Route", "Ext", "Ext Mono Right Mixer"},
	{"Lineout Left Playback Route", "Ext", "Ext Mono Left Mixer"},
	{"Headset Right Playback Route", "Ext", "Ext Mono Right Mixer"},
	{"Headset Left Playback Route", "Ext", "Ext Mono Left Mixer"},
	{"EMU Right Playback Route", "Ext", "Ext Mono Right Mixer"},
	{"EMU Left Playback Route", "Ext", "Ext Mono Left Mixer"},

	/* Output Route -> Output Amplifier */
	{"Earpiece PGA", NULL, "Earpiece Playback Route"},
	{"Speaker Right PGA", NULL, "Speaker Right Playback Route"},
	{"Speaker Left PGA", NULL, "Speaker Left Playback Route"},
	{"Lineout Right PGA", NULL, "Lineout Right Playback Route"},
	{"Lineout Left PGA", NULL, "Lineout Left Playback Route"},
	{"Headset Right PGA", NULL, "Headset Right Playback Route"},
	{"Headset Left PGA", NULL, "Headset Left Playback Route"},
	{"EMU Right PGA", NULL, "EMU Right Playback Route"},
	{"EMU Left PGA", NULL, "EMU Left Playback Route"},

	/* Output Amplifier -> Output */
	{"EP", NULL, "Earpiece PGA"},
	{"SPKR", NULL, "Speaker Right PGA"},
	{"SPKL", NULL, "Speaker Left PGA"},
	{"LINER", NULL, "Lineout Right PGA"},
	{"LINEL", NULL, "Lineout Left PGA"},
	{"HSR", NULL, "Headset Right PGA"},
	{"HSL", NULL, "Headset Left PGA"},
	{"EMUR", NULL, "EMU Right PGA"},
	{"EMUL", NULL, "EMU Left PGA"},

	/* Headset Charge Pump -> Headset */
	{"HSR", NULL, "Headset Charge Pump"},
	{"HSL", NULL, "Headset Charge Pump"},

	/* Mic -> Mic Route */
	{"Right Capture Route", "Mic 1", "MICR"},
	{"Right Capture Route", "Headset Mic", "HSMIC"},
	{"Right Capture Route", "EMU Mic", "EMUMIC"},
	{"Right Capture Route", "Ext Right", "EXTR"},
	{"Left Capture Route", "Mic 2", "MICL"},
	{"Left Capture Route", "Ext Left", "EXTL"},

	/* Input Route -> Microphone PGA */
	{"Microphone 1 PGA", NULL, "Right Capture Route"},
	{"Microphone 2 PGA", NULL, "Left Capture Route"},

	/* Microphone PGA -> ADC */
	{"ADC Right", NULL, "Microphone 1 PGA"},
	{"ADC Left", NULL, "Microphone 2 PGA"},

	/* ADC -> Stream */
	{"Highpass Filter TX", NULL, "ADC Right"},
	{"Highpass Filter TX", NULL, "ADC Left"},

	/* Mic Bias */
	{"MICL", NULL, "MIC1L Bias"},
	{"MICR", NULL, "MIC1R Bias"},
};

static int cpcap_set_sysclk(struct cpcap_audio *cpcap, enum cpcap_dai dai,
			    int clk_id, int freq)
{
	u16 clkfreqreg, clkfreqshift;
	u16 clkfreqmask, clkfreqval;
	u16 clkidreg, clkidshift;
	u16 mask, val;
	int err;

	switch (dai) {
	case CPCAP_DAI_HIFI:
		clkfreqreg = CPCAP_REG_SDAC;
		clkfreqshift = CPCAP_BIT_ST_DAC_CLK0;
		clkidreg = CPCAP_REG_SDACDI;
		clkidshift = CPCAP_BIT_ST_DAC_CLK_IN_SEL;
		break;
	case CPCAP_DAI_VOICE:
		clkfreqreg = CPCAP_REG_CC;
		clkfreqshift = CPCAP_BIT_CDC_CLK0;
		clkidreg = CPCAP_REG_CDI;
		clkidshift = CPCAP_BIT_CLK_IN_SEL;
		break;
	default:
		dev_err(cpcap->component->dev, "invalid DAI: %d", dai);
		return -EINVAL;
	}

	/* setup clk id */
	if (clk_id < 0 || clk_id > 1) {
		dev_err(cpcap->component->dev, "invalid clk id %d", clk_id);
		return -EINVAL;
	}
	err = regmap_update_bits(cpcap->regmap, clkidreg, BIT(clkidshift),
				 clk_id ? BIT(clkidshift) : 0);
	if (err)
		return err;

	/* enable PLL for Voice DAI */
	if (dai == CPCAP_DAI_VOICE) {
		mask = BIT(CPCAP_BIT_CDC_PLL_SEL);
		val = BIT(CPCAP_BIT_CDC_PLL_SEL);
		err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI,
					 mask, val);
		if (err)
			return err;
	}

	/* setup frequency */
	clkfreqmask = 0x7 << clkfreqshift;
	switch (freq) {
	case 15360000:
		clkfreqval = 0x01 << clkfreqshift;
		break;
	case 16800000:
		clkfreqval = 0x02 << clkfreqshift;
		break;
	case 19200000:
		clkfreqval = 0x03 << clkfreqshift;
		break;
	case 26000000:
		clkfreqval = 0x04 << clkfreqshift;
		break;
	case 33600000:
		clkfreqval = 0x05 << clkfreqshift;
		break;
	case 38400000:
		clkfreqval = 0x06 << clkfreqshift;
		break;
	default:
		dev_err(cpcap->component->dev, "unsupported freq %u", freq);
		return -EINVAL;
	}

	err = regmap_update_bits(cpcap->regmap, clkfreqreg,
				 clkfreqmask, clkfreqval);
	if (err)
		return err;

	if (dai == CPCAP_DAI_VOICE) {
		cpcap->codec_clk_id = clk_id;
		cpcap->codec_freq = freq;
	}

	return 0;
}

static int cpcap_set_samprate(struct cpcap_audio *cpcap, enum cpcap_dai dai,
			      int samplerate)
{
	struct snd_soc_component *component = cpcap->component;
	u16 sampreg, sampmask, sampshift, sampval, sampreset;
	int err, sampreadval;

	switch (dai) {
	case CPCAP_DAI_HIFI:
		sampreg = CPCAP_REG_SDAC;
		sampshift = CPCAP_BIT_ST_SR0;
		sampreset = BIT(CPCAP_BIT_DF_RESET_ST_DAC) |
			    BIT(CPCAP_BIT_ST_CLOCK_TREE_RESET);
		break;
	case CPCAP_DAI_VOICE:
		sampreg = CPCAP_REG_CC;
		sampshift = CPCAP_BIT_CDC_SR0;
		sampreset = BIT(CPCAP_BIT_DF_RESET) |
			    BIT(CPCAP_BIT_CDC_CLOCK_TREE_RESET);
		break;
	default:
		dev_err(component->dev, "invalid DAI: %d", dai);
		return -EINVAL;
	}

	sampmask = 0xF << sampshift | sampreset;
	switch (samplerate) {
	case 48000:
		sampval = 0x8 << sampshift;
		break;
	case 44100:
		sampval = 0x7 << sampshift;
		break;
	case 32000:
		sampval = 0x6 << sampshift;
		break;
	case 24000:
		sampval = 0x5 << sampshift;
		break;
	case 22050:
		sampval = 0x4 << sampshift;
		break;
	case 16000:
		sampval = 0x3 << sampshift;
		break;
	case 12000:
		sampval = 0x2 << sampshift;
		break;
	case 11025:
		sampval = 0x1 << sampshift;
		break;
	case 8000:
		sampval = 0x0 << sampshift;
		break;
	default:
		dev_err(component->dev, "unsupported samplerate %d", samplerate);
		return -EINVAL;
	}
	err = regmap_update_bits(cpcap->regmap, sampreg,
				 sampmask, sampval | sampreset);
	if (err)
		return err;

	/* Wait for clock tree reset to complete */
	mdelay(CLOCK_TREE_RESET_TIME);

	err = regmap_read(cpcap->regmap, sampreg, &sampreadval);
	if (err)
		return err;

	if (sampreadval & sampreset) {
		dev_err(component->dev, "reset self-clear failed: %04x",
			sampreadval);
		return -EIO;
	}

	return 0;
}

static int cpcap_hifi_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 cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	int rate = params_rate(params);

	dev_dbg(component->dev, "HiFi setup HW params: rate=%d", rate);
	return cpcap_set_samprate(cpcap, CPCAP_DAI_HIFI, rate);
}

static int cpcap_hifi_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 cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	struct device *dev = component->dev;

	dev_dbg(dev, "HiFi setup sysclk: clk_id=%u, freq=%u", clk_id, freq);
	return cpcap_set_sysclk(cpcap, CPCAP_DAI_HIFI, clk_id, freq);
}

static int cpcap_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
				  unsigned int fmt)
{
	struct snd_soc_component *component = codec_dai->component;
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	struct device *dev = component->dev;
	static const u16 reg = CPCAP_REG_SDACDI;
	static const u16 mask =
		BIT(CPCAP_BIT_SMB_ST_DAC) |
		BIT(CPCAP_BIT_ST_CLK_INV) |
		BIT(CPCAP_BIT_ST_FS_INV) |
		BIT(CPCAP_BIT_ST_DIG_AUD_FS0) |
		BIT(CPCAP_BIT_ST_DIG_AUD_FS1) |
		BIT(CPCAP_BIT_ST_L_TIMESLOT0) |
		BIT(CPCAP_BIT_ST_L_TIMESLOT1) |
		BIT(CPCAP_BIT_ST_L_TIMESLOT2) |
		BIT(CPCAP_BIT_ST_R_TIMESLOT0) |
		BIT(CPCAP_BIT_ST_R_TIMESLOT1) |
		BIT(CPCAP_BIT_ST_R_TIMESLOT2);
	u16 val = 0x0000;

	dev_dbg(dev, "HiFi setup dai format (%08x)", fmt);

	/*
	 * "HiFi Playback" should always be configured as
	 * SND_SOC_DAIFMT_CBM_CFM - codec clk & frm master
	 * SND_SOC_DAIFMT_I2S - I2S mode
	 */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		val &= ~BIT(CPCAP_BIT_SMB_ST_DAC);
		break;
	default:
		dev_err(dev, "HiFi dai fmt failed: CPCAP should be master");
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_IB_IF:
		val |= BIT(CPCAP_BIT_ST_FS_INV);
		val |= BIT(CPCAP_BIT_ST_CLK_INV);
		break;
	case SND_SOC_DAIFMT_IB_NF:
		val &= ~BIT(CPCAP_BIT_ST_FS_INV);
		val |= BIT(CPCAP_BIT_ST_CLK_INV);
		break;
	case SND_SOC_DAIFMT_NB_IF:
		val |= BIT(CPCAP_BIT_ST_FS_INV);
		val &= ~BIT(CPCAP_BIT_ST_CLK_INV);
		break;
	case SND_SOC_DAIFMT_NB_NF:
		val &= ~BIT(CPCAP_BIT_ST_FS_INV);
		val &= ~BIT(CPCAP_BIT_ST_CLK_INV);
		break;
	default:
		dev_err(dev, "HiFi dai fmt failed: unsupported clock invert mode");
		return -EINVAL;
	}

	if (val & BIT(CPCAP_BIT_ST_CLK_INV))
		val &= ~BIT(CPCAP_BIT_ST_CLK_INV);
	else
		val |= BIT(CPCAP_BIT_ST_CLK_INV);

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		val |= BIT(CPCAP_BIT_ST_DIG_AUD_FS0);
		val |= BIT(CPCAP_BIT_ST_DIG_AUD_FS1);
		break;
	default:
		/* 01 - 4 slots network mode */
		val |= BIT(CPCAP_BIT_ST_DIG_AUD_FS0);
		val &= ~BIT(CPCAP_BIT_ST_DIG_AUD_FS1);
		/* L on slot 1 */
		val |= BIT(CPCAP_BIT_ST_L_TIMESLOT0);
		break;
	}

	dev_dbg(dev, "HiFi dai format: val=%04x", val);
	return regmap_update_bits(cpcap->regmap, reg, mask, val);
}

static int cpcap_hifi_set_mute(struct snd_soc_dai *dai, int mute)
{
	struct snd_soc_component *component = dai->component;
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	static const u16 reg = CPCAP_REG_RXSDOA;
	static const u16 mask = BIT(CPCAP_BIT_ST_DAC_SW);
	u16 val;

	if (mute)
		val = 0;
	else
		val = BIT(CPCAP_BIT_ST_DAC_SW);

	dev_dbg(component->dev, "HiFi mute: %d", mute);
	return regmap_update_bits(cpcap->regmap, reg, mask, val);
}

static const struct snd_soc_dai_ops cpcap_dai_hifi_ops = {
	.hw_params	= cpcap_hifi_hw_params,
	.set_sysclk	= cpcap_hifi_set_dai_sysclk,
	.set_fmt	= cpcap_hifi_set_dai_fmt,
	.digital_mute	= cpcap_hifi_set_mute,
};

static int cpcap_voice_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 device *dev = component->dev;
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	static const u16 reg_cdi = CPCAP_REG_CDI;
	int rate = params_rate(params);
	int channels = params_channels(params);
	int direction = substream->stream;
	u16 val, mask;
	int err;

	dev_dbg(dev, "Voice setup HW params: rate=%d, direction=%d, chan=%d",
		rate, direction, channels);

	err = cpcap_set_samprate(cpcap, CPCAP_DAI_VOICE, rate);
	if (err)
		return err;

	if (direction == SNDRV_PCM_STREAM_CAPTURE) {
		mask = 0x0000;
		mask |= CPCAP_BIT_MIC1_RX_TIMESLOT0;
		mask |= CPCAP_BIT_MIC1_RX_TIMESLOT1;
		mask |= CPCAP_BIT_MIC1_RX_TIMESLOT2;
		mask |= CPCAP_BIT_MIC2_TIMESLOT0;
		mask |= CPCAP_BIT_MIC2_TIMESLOT1;
		mask |= CPCAP_BIT_MIC2_TIMESLOT2;
		val = 0x0000;
		if (channels >= 2)
			val = BIT(CPCAP_BIT_MIC1_RX_TIMESLOT0);
		err = regmap_update_bits(cpcap->regmap, reg_cdi, mask, val);
		if (err)
			return err;
	}

	return 0;
}

static int cpcap_voice_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 cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);

	dev_dbg(component->dev, "Voice setup sysclk: clk_id=%u, freq=%u",
		clk_id, freq);
	return cpcap_set_sysclk(cpcap, CPCAP_DAI_VOICE, clk_id, freq);
}

static int cpcap_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
				   unsigned int fmt)
{
	struct snd_soc_component *component = codec_dai->component;
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	static const u16 mask = BIT(CPCAP_BIT_SMB_CDC) |
				BIT(CPCAP_BIT_CLK_INV) |
				BIT(CPCAP_BIT_FS_INV) |
				BIT(CPCAP_BIT_CDC_DIG_AUD_FS0) |
				BIT(CPCAP_BIT_CDC_DIG_AUD_FS1);
	u16 val = 0x0000;
	int err;

	dev_dbg(component->dev, "Voice setup dai format (%08x)", fmt);

	/*
	 * "Voice Playback" and "Voice Capture" should always be
	 * configured as SND_SOC_DAIFMT_CBM_CFM - codec clk & frm
	 * master
	 */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		val &= ~BIT(CPCAP_BIT_SMB_CDC);
		break;
	default:
		dev_err(component->dev, "Voice dai fmt failed: CPCAP should be the master");
		val &= ~BIT(CPCAP_BIT_SMB_CDC);
		break;
	}

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_IB_IF:
		val |= BIT(CPCAP_BIT_CLK_INV);
		val |= BIT(CPCAP_BIT_FS_INV);
		break;
	case SND_SOC_DAIFMT_IB_NF:
		val |= BIT(CPCAP_BIT_CLK_INV);
		val &= ~BIT(CPCAP_BIT_FS_INV);
		break;
	case SND_SOC_DAIFMT_NB_IF:
		val &= ~BIT(CPCAP_BIT_CLK_INV);
		val |= BIT(CPCAP_BIT_FS_INV);
		break;
	case SND_SOC_DAIFMT_NB_NF:
		val &= ~BIT(CPCAP_BIT_CLK_INV);
		val &= ~BIT(CPCAP_BIT_FS_INV);
		break;
	default:
		dev_err(component->dev, "Voice dai fmt failed: unsupported clock invert mode");
		break;
	}

	if (val & BIT(CPCAP_BIT_CLK_INV))
		val &= ~BIT(CPCAP_BIT_CLK_INV);
	else
		val |= BIT(CPCAP_BIT_CLK_INV);

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		/* 11 - true I2S mode */
		val |= BIT(CPCAP_BIT_CDC_DIG_AUD_FS0);
		val |= BIT(CPCAP_BIT_CDC_DIG_AUD_FS1);
		break;
	default:
		/* 4 timeslots network mode */
		val |= BIT(CPCAP_BIT_CDC_DIG_AUD_FS0);
		val &= ~BIT(CPCAP_BIT_CDC_DIG_AUD_FS1);
		break;
	}

	dev_dbg(component->dev, "Voice dai format: val=%04x", val);
	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI, mask, val);
	if (err)
		return err;

	cpcap->codec_format = val;
	return 0;
}

static int cpcap_voice_set_mute(struct snd_soc_dai *dai, int mute)
{
	struct snd_soc_component *component = dai->component;
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	static const u16 reg = CPCAP_REG_RXCOA;
	static const u16 mask = BIT(CPCAP_BIT_CDC_SW);
	u16 val;

	if (mute)
		val = 0;
	else
		val = BIT(CPCAP_BIT_CDC_SW);

	dev_dbg(component->dev, "Voice mute: %d", mute);
	return regmap_update_bits(cpcap->regmap, reg, mask, val);
};

static const struct snd_soc_dai_ops cpcap_dai_voice_ops = {
	.hw_params	= cpcap_voice_hw_params,
	.set_sysclk	= cpcap_voice_set_dai_sysclk,
	.set_fmt	= cpcap_voice_set_dai_fmt,
	.digital_mute	= cpcap_voice_set_mute,
};

static struct snd_soc_dai_driver cpcap_dai[] = {
{
	.id = 0,
	.name = "cpcap-hifi",
	.playback = {
		.stream_name = "HiFi Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE,
	},
	.ops = &cpcap_dai_hifi_ops,
},
{
	.id = 1,
	.name = "cpcap-voice",
	.playback = {
		.stream_name = "Voice Playback",
		.channels_min = 1,
		.channels_max = 1,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
	.capture = {
		.stream_name = "Voice Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
	.ops = &cpcap_dai_voice_ops,
},
};

static int cpcap_dai_mux(struct cpcap_audio *cpcap, bool swap_dai_configuration)
{
	u16 hifi_val, voice_val;
	u16 hifi_mask = BIT(CPCAP_BIT_DIG_AUD_IN_ST_DAC);
	u16 voice_mask = BIT(CPCAP_BIT_DIG_AUD_IN);
	int err;



	if (!swap_dai_configuration) {
		/* Codec on DAI0, HiFi on DAI1 */
		voice_val = 0;
		hifi_val = hifi_mask;
	} else {
		/* Codec on DAI1, HiFi on DAI0 */
		voice_val = voice_mask;
		hifi_val = 0;
	}

	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI,
				 voice_mask, voice_val);
	if (err)
		return err;

	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_SDACDI,
				 hifi_mask, hifi_val);
	if (err)
		return err;

	return 0;
}

static int cpcap_audio_reset(struct snd_soc_component *component,
			     bool swap_dai_configuration)
{
	struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
	int i, err = 0;

	dev_dbg(component->dev, "init audio codec");

	for (i = 0; i < ARRAY_SIZE(cpcap_default_regs); i++) {
		err = regmap_update_bits(cpcap->regmap,
					 cpcap_default_regs[i].reg,
					 cpcap_default_regs[i].mask,
					 cpcap_default_regs[i].val);
		if (err)
			return err;
	}

	/* setup default settings */
	err = cpcap_dai_mux(cpcap, swap_dai_configuration);
	if (err)
		return err;

	err = cpcap_set_sysclk(cpcap, CPCAP_DAI_HIFI, 0, 26000000);
	if (err)
		return err;
	err = cpcap_set_sysclk(cpcap, CPCAP_DAI_VOICE, 0, 26000000);
	if (err)
		return err;

	err = cpcap_set_samprate(cpcap, CPCAP_DAI_HIFI, 48000);
	if (err)
		return err;

	err = cpcap_set_samprate(cpcap, CPCAP_DAI_VOICE, 48000);
	if (err)
		return err;

	return 0;
}

static int cpcap_soc_probe(struct snd_soc_component *component)
{
	struct cpcap_audio *cpcap;
	int err;

	cpcap = devm_kzalloc(component->dev, sizeof(*cpcap), GFP_KERNEL);
	if (!cpcap)
		return -ENOMEM;
	snd_soc_component_set_drvdata(component, cpcap);
	cpcap->component = component;

	cpcap->regmap = dev_get_regmap(component->dev->parent, NULL);
	if (!cpcap->regmap)
		return -ENODEV;
	snd_soc_component_init_regmap(component, cpcap->regmap);

	err = cpcap_get_vendor(component->dev, cpcap->regmap, &cpcap->vendor);
	if (err)
		return err;

	return cpcap_audio_reset(component, false);
}

static struct snd_soc_component_driver soc_codec_dev_cpcap = {
	.probe			= cpcap_soc_probe,
	.controls		= cpcap_snd_controls,
	.num_controls		= ARRAY_SIZE(cpcap_snd_controls),
	.dapm_widgets		= cpcap_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(cpcap_dapm_widgets),
	.dapm_routes		= intercon,
	.num_dapm_routes	= ARRAY_SIZE(intercon),
	.idle_bias_on		= 1,
	.use_pmdown_time	= 1,
	.endianness		= 1,
	.non_legacy_dai_naming	= 1,
};

static int cpcap_codec_probe(struct platform_device *pdev)
{
	struct device_node *codec_node =
		of_get_child_by_name(pdev->dev.parent->of_node, "audio-codec");

	pdev->dev.of_node = codec_node;

	return devm_snd_soc_register_component(&pdev->dev, &soc_codec_dev_cpcap,
				      cpcap_dai, ARRAY_SIZE(cpcap_dai));
}

static struct platform_driver cpcap_codec_driver = {
	.probe		= cpcap_codec_probe,
	.driver		= {
		.name	= "cpcap-codec",
	},
};
module_platform_driver(cpcap_codec_driver);

MODULE_ALIAS("platform:cpcap-codec");
MODULE_DESCRIPTION("ASoC CPCAP codec driver");
MODULE_AUTHOR("Sebastian Reichel");
MODULE_LICENSE("GPL v2");