#include "stm32f1xx_hal.h"


#ifndef REGS_H_
#define REGS_H_

enum reg_id {
	REG_ID_TYP = 0x00,			//!< firmware type (0=official, others=custom)
	REG_ID_VER = 0x01,			//!< fw version (7:4=Major, 3:0=Minor)
#ifdef I2C_REGS_COMPAT
	REG_ID_CFG = 0x02, // config
	REG_ID_INT = 0x03, // interrupt status
	REG_ID_KEY = 0x04, // key status
	REG_ID_BKL = 0x05, // backlight steps (0-9)
	REG_ID_DEB = 0x06, // debounce cfg
	REG_ID_FRQ = 0x07, // poll freq cfg
	REG_ID_RST = 0x08, // STM32 full reset
	REG_ID_FIF = 0x09, // fifo
	REG_ID_BK2 = 0x0A, // keyboard backlight (0-9)
	REG_ID_BAT = 0x0B, // battery
	REG_ID_C64_MTX = 0x0C,// read c64 matrix
	REG_ID_C64_JS = 0x0D, // joystick io bits
	REG_ID_RST_PICO = 0x0E, // Pico reset
	REG_ID_SHTDW = 0x0F, // self-shutdown
	REG_ID_INT_CFG = 0x10, // IRQ config
	REG_ID_RTC_CFG = 0x11, // RTC general config
	REG_ID_RTC_DATE = 0x12, // RTC date
	REG_ID_RTC_TIME = 0x13, // RTC time
	REG_ID_RTC_ALARM_DATE = 0x14, // RTC alarm date
	REG_ID_RTC_ALARM_TIME = 0x15, // RTC alarm time
#else
	REG_ID_CFG = 0x02,				//!< config
	REG_ID_INT_CFG = 0x03,			//!< IRQ config
	REG_ID_INT = 0x04,				//!< interrupt status
	REG_ID_BKL = 0x05,				//!< backlight steps (0-9)
	REG_ID_BK2 = 0x06,				//!< keyboard backlight (0-9)
	REG_ID_DEB = 0x07,				//!< debounce cfg (time in ms)
	REG_ID_FRQ = 0x08,				//!< poll freq cfg (time in ms)

	REG_ID_RTC_CFG = 0x0A,			//!< RTC general config
	REG_ID_RTC_DATE = 0x0B,			//!< RTC date
	REG_ID_RTC_TIME = 0x0C,			//!< RTC time
	REG_ID_RTC_ALARM_DATE = 0x0D,	//!< RTC alarm date
	REG_ID_RTC_ALARM_TIME = 0x0E,	//!< RTC alarm time

	REG_ID_KEY = 0x10,				//!< key status
	REG_ID_FIF = 0x11,				//!< fifo
	REG_ID_C64_MTX = 0x12,			//!< read c64 matrix
	REG_ID_C64_JS = 0x13,			//!< joystick io bits

	REG_ID_RST = 0x20,				//!< STM32 full reset
	REG_ID_RST_PICO = 0x21,			//!< Pico reset
	REG_ID_SHTDW = 0x22,			//!< self-shutdown

	REG_ID_BAT = 0x30,				//!< battery
#endif
	REG_ID_LAST
};

#define CFG_OVERFLOW_ON		(1 << 0) //When a FIFO overflow happens, should the new entry still be pushed, overwriting the oldest one. If 0 then new entry is lost.
#define CFG_REPORT_MODS		(1 << 6) // Should Alt, Sym and Shifts be reported as well
#define CFG_USE_MODS		(1 << 7) // Should Alt, Sym and Shifts modify the keys reported
// CFG_STICKY_MODS // Pressing and releasing a mod affects next key pressed

#define INT_OVERFLOW		(1 << 0)
#define INT_CAPSLOCK		(1 << 1)
#define INT_NUMLOCK			(1 << 2)
#define INT_KEY				(1 << 3)
#define INT_PANIC			(1 << 4)

#define KEY_CAPSLOCK		(1 << 5)
#define KEY_NUMLOCK			(1 << 6)
#define KEY_COUNT_MASK		0x1F  //0x1F == 31


uint8_t reg_get_value(enum reg_id reg);
uint8_t* reg_raw_access(void);
void reg_set_value(enum reg_id reg, uint8_t value);
uint8_t reg_is_bit_set(enum reg_id reg, uint8_t bit);
void reg_set_bit(enum reg_id reg, uint8_t bit);
void reg_init(void);
uint32_t reg_check_and_save_eeprom(void);
void reg_sync(void);

#endif /* REGS_H_ */