/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * rt1320-sdw.h -- RT1320 SDCA ALSA SoC audio driver header
 *
 * Copyright(c) 2024 Realtek Semiconductor Corp.
 */

#ifndef __RT1320_SDW_H__
#define __RT1320_SDW_H__

#include <linux/regmap.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
#include <linux/soundwire/sdw_registers.h>
#include <sound/soc.h>

/* imp-defined registers */
#define RT1320_DEV_VERSION_ID_1 0xc404

#define RT1320_KR0_STATUS_CNT 0x1000f008
#define RT1320_KR0_INT_READY 0x1000f021
#define RT1320_HIFI_VER_0 0x3fe2e000
#define RT1320_HIFI_VER_1 0x3fe2e001
#define RT1320_HIFI_VER_2 0x3fe2e002
#define RT1320_HIFI_VER_3 0x3fe2e003

/* RT1320 SDCA Control - function number */
#define FUNC_NUM_AMP 0x04

/* RT1320 SDCA entity */
#define RT1320_SDCA_ENT0 0x00
#define RT1320_SDCA_ENT_PDE11 0x2a
#define RT1320_SDCA_ENT_PDE23 0x33
#define RT1320_SDCA_ENT_PDE27 0x27
#define RT1320_SDCA_ENT_FU14 0x32
#define RT1320_SDCA_ENT_FU21 0x03
#define RT1320_SDCA_ENT_FU113 0x30
#define RT1320_SDCA_ENT_CS14 0x13
#define RT1320_SDCA_ENT_CS21 0x21
#define RT1320_SDCA_ENT_CS113 0x12
#define RT1320_SDCA_ENT_SAPU 0x29
#define RT1320_SDCA_ENT_PPU21 0x04

/* RT1320 SDCA control */
#define RT1320_SDCA_CTL_SAMPLE_FREQ_INDEX 0x10
#define RT1320_SDCA_CTL_REQ_POWER_STATE 0x01
#define RT1320_SDCA_CTL_ACTUAL_POWER_STATE 0x10
#define RT1320_SDCA_CTL_FU_MUTE 0x01
#define RT1320_SDCA_CTL_FU_VOLUME 0x02
#define RT1320_SDCA_CTL_SAPU_PROTECTION_MODE 0x10
#define RT1320_SDCA_CTL_SAPU_PROTECTION_STATUS 0x11
#define RT1320_SDCA_CTL_POSTURE_NUMBER 0x10
#define RT1320_SDCA_CTL_FUNC_STATUS 0x10

/* RT1320 SDCA channel */
#define CH_01 0x01
#define CH_02 0x02

/* Function_Status */
#define FUNCTION_NEEDS_INITIALIZATION		BIT(5)

/* Sample Frequency Index */
#define RT1320_SDCA_RATE_16000HZ		0x04
#define RT1320_SDCA_RATE_32000HZ		0x07
#define RT1320_SDCA_RATE_44100HZ		0x08
#define RT1320_SDCA_RATE_48000HZ		0x09
#define RT1320_SDCA_RATE_96000HZ		0x0b
#define RT1320_SDCA_RATE_192000HZ		0x0d

enum {
	RT1320_AIF1,
};

/*
 * The version id will be useful to distinguish the capability between the different IC versions.
 * Currently, VA and VB have different DSP FW versions.
 */
enum rt1320_version_id {
	RT1320_VA,
	RT1320_VB,
	RT1320_VC,
};

#define RT1320_VER_B_ID 0x07392238

struct rt1320_sdw_priv {
	struct snd_soc_component *component;
	struct regmap *regmap;
	struct regmap *mbq_regmap;
	struct sdw_slave *sdw_slave;
	struct sdw_bus_params params;
	bool hw_init;
	bool first_hw_init;
	int version_id;
};

#endif /* __RT1320_SDW_H__ */