/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2020 MediaTek Inc.
*/


#ifndef __PHY_MTK_SSUSB_H
#define __PHY_MTK_SSUSB_H
#include <linux/types.h>
#include <linux/clk.h>

struct mtk_phy_tuning {
	s32 u2_vrt_ref;
	s32 u2_term_ref;
	s32 u2_enhance;
	bool inited;
};

struct mtk_phy_instance {
	const struct mtk_phy_interface *phycfg;
	struct mtk_phy_drv *phy_drv;
	struct phy *phy;
	void __iomem *port_base;
	void __iomem *sif_misc;
	void __iomem *sif_fmreg;
	void __iomem *sif_u2phy_com;
	void __iomem *sif_spllc;
	void __iomem *sif_chip;
	void __iomem *sif_u3phyd;
	void __iomem *sif_u3phyd_bank2;
	void __iomem *sif_u3phya;
	void __iomem *sif_u3phya_da;
	unsigned int port_rgsz;
	bool sib_mode;
	bool uart_mode;
	int phy_number;
	struct mtk_phy_tuning phy_tuning;
};


struct mtk_phy_interface {
	int  (*usb_phy_init)(struct mtk_phy_instance *instance);
	void (*usb_phy_savecurrent)(struct mtk_phy_instance *instance);
	void (*usb_phy_recover)(struct mtk_phy_instance *instance);
	void (*usb_phy_switch_to_bc11)(struct mtk_phy_instance *instance,
		bool on);
	void (*usb_phy_dpdm_pulldown)(struct mtk_phy_instance *instance,
		bool enable);
	int  (*usb_phy_lpm_enable)(struct mtk_phy_instance *instance, bool on);
	int  (*usb_phy_host_mode)(struct mtk_phy_instance *instance, bool on);
	int  (*usb_phy_io_read)(struct mtk_phy_instance *instance, u32 reg);
	int  (*usb_phy_io_write)(struct mtk_phy_instance *instance, u32 val,
		u32 reg);
	void (*usb_phy_switch_to_usb)(struct mtk_phy_instance *instance);
	void (*usb_phy_switch_to_uart)(struct mtk_phy_instance *instance);
	bool (*usb_phy_check_in_uart_mode)(struct mtk_phy_instance *instance);
	void (*usb_phy_dump_usb2uart_reg)(struct mtk_phy_instance *instance);
	void (*usb_phy_sib_enable_switch)(struct mtk_phy_instance *instance,
		bool enable);
	bool (*usb_phy_sib_switch_status)(struct mtk_phy_instance *instance);
	bool (*usb_phy_u3_loop_back_test)(struct mtk_phy_instance *instance);
	int (*usb_phy_inst_init)(struct mtk_phy_instance *instance);
	unsigned int reg_offset;
	char *name;
	char *tuning_node_name;
	u8 port_num;
	u8 port_type;
};

struct mtk_usbphy_config {
	const struct mtk_phy_interface *phys;
	unsigned int num_phys;
	unsigned int version;
	int (*usb_drv_init)(struct platform_device *pdev,
		struct mtk_phy_drv *drv);
	int (*usb_drv_exit)(struct platform_device *pdev,
		struct mtk_phy_drv *drv);
};

struct mtk_phy_drv {
	struct device *dev;
	const struct mtk_usbphy_config *phycfg;
	void __iomem *phy_base;
	void __iomem *ippc_base;
	struct mtk_phy_instance **phys;
	int nphys;
	struct clk *clk;
	struct regulator *vusb33;
	struct regulator *vusb10;
};

/*Set the debug level for phy driver*/
#define K_ALET	(1<<6)
#define K_CRIT	(1<<5)
#define K_ERR	(1<<4)
#define K_WARNIN	(1<<3)
#define K_NOTICE	(1<<2)
#define K_INFO		(1<<1)
#define K_DEBUG	(1<<0)

extern u32 phy_debug_level;

#define phy_printk(level, fmt, args...) do { \
		if (phy_debug_level & level) { \
			pr_info("[MTKPHY]" fmt, ## args); \
		} \
	} while (0)

extern const struct of_device_id mtk_phy_of_match[];


#endif