#ifndef EYETRACK_FPGA_H_
#define EYETRACK_FPGA_H_

#define FPGA_RESET_COMMAND			('R')
#define FPGA_RECONFIG_COMMAND		('B')
#define FPGA_I2C_COMMAND			('I')
#define FPGA_I2C_READ				('i')

#define FPGA_I2C_MAX_LEN			(32)
#define FPGA_I2C_ADDR				(0x78)


#define FPGA_REG_CAM_ADDR_HI		(0x00)
#define FPGA_REG_CAM_ADDR_LO		(0x01)
#define FPGA_REG_CAM_DATA			(0x02)
#define FPGA_REG_PWM_HI				(0x10)
#define FPGA_REG_PWM_LO				(0x11)

#define FPGA_CURRENT_MEAS_LENGTH		(9)
#define FPGA_REG_IR_LEFT_RUN_MEAS_HI	(0x70)
#define FPGA_REG_IR_LEFT_RUN_MEAS_LO	(0x71)
#define FPGA_REG_IR_LEFT_IDLE_MEAS_HI	(0x72)
#define FPGA_REG_IR_LEFT_IDLE_MEAS_LO	(0x73)
#define FPGA_REG_IR_RIGHT_RUN_MEAS_HI	(0x74)
#define FPGA_REG_IR_RIGHT_RUN_MEAS_LO	(0x75)
#define FPGA_REG_IR_RIGHT_IDLE_MEAS_HI	(0x76)
#define FPGA_REG_IR_RIGHT_IDLE_MEAS_LO	(0x77)
#define FPGA_REG_IR_ERRORS				(0x78)

#define FPGA_ID_LEN					(3)
#define FPGA_REG_CONFIG_ID			(0xA0)
#define FPGA_REG_SW_VER_HI			(0xA1)
#define FPGA_REG_SW_VER_LO			(0xA2)

void fpga_init(void);
void fpga_reset(void);
void fpga_reconfig(void);
uint8_t set_fpga_command_data(uint8_t len, uint8_t* data);
uint8_t* get_fpga_read_data(void);
uint8_t get_fpga_read_len(void);
uint8_t fpga_send_i2c(void);
uint8_t fpga_read_i2c(void);

#endif /* EYETRACK_FPGA_H_ */