#ifndef _PAJ7620U2_
#define _PAJ7620U2_

//i2c address
#define PAJ7620U2_I2C_ADDRESS		0x73
//Register Bank select
#define PAJ_BANK_SELECT			0xEF		/*Bank0=0x00,Bank1=0x01*/
//Register Bank 0
#define PAJ_SUSPEND			 	0x03		/*I2C suspend command (Write 0x01 to enter suspend state). I2C wake-up command is slave ID wake-up. Refer to topic ��I2C Bus Timing Characteristics and Protocol��*/
#define PAJ_INT_FLAG1_MASK		0x41		/*Gesture detection interrupt flag mask*/
#define PAJ_INT_FLAG2_MASK		0x42		/*Gesture/PS detection interrupt flag mask*/
#define PAJ_INT_FLAG1		    0x43		/*Gesture detection interrupt flag*/
#define PAJ_INT_FLAG2			0x44		/*Gesture/PS detection interrupt flag*/
#define PAJ_STATE				0x45		/*State indicator for gesture detection (Only functional at gesture detection mode)*/
#define PAJ_PS_HIGH_THRESHOLD	0x69		/*PS hysteresis high threshold (Only functional at proximity detection mode)*/		
#define PAJ_PS_LOW_THRESHOLD	0x6A		/*PS hysteresis low threshold (Only functional at proximity detection mode)*/
#define PAJ_PS_APPROACH_STATE	0x6B		/*PS approach state,  Approach = 1 , (8 bits PS data >= PS high threshold),  Not Approach = 0 , (8 bits PS data <= PS low threshold)(Only functional at proximity detection mode)*/
#define PAJ_PS_DATA				0x6C		/*PS 8 bit data(Only functional at gesture detection mode)*/
#define PAJ_OBJ_BRIGHTNESS		0xB0		/*Object Brightness (Max. 255)*/
#define PAJ_OBJ_SIZE_L			0xB1		/*Object Size(Low 8 bit)*/		
#define PAJ_OBJ_SIZE_H			0xB2		/*Object Size(High 8 bit)*/	

//Register Bank 1
#define PAJ_PS_GAIN				0x44		/*PS gain setting (Only functional at proximity detection mode)*/
#define PAJ_IDLE_S1_STEP_L		0x67		/*IDLE S1 Step, for setting the S1, Response Factor(Low 8 bit)*/
#define PAJ_IDLE_S1_STEP_H		0x68		/*IDLE S1 Step, for setting the S1, Response Factor(High 8 bit)*/	
#define PAJ_IDLE_S2_STEP_L		0x69		/*IDLE S2 Step, for setting the S2, Response Factor(Low 8 bit)*/
#define PAJ_IDLE_S2_STEP_H		0x6A		/*IDLE S2 Step, for setting the S2, Response Factor(High 8 bit)*/
#define PAJ_OPTOS1_TIME_L		0x6B		/*OPtoS1 Step, for setting the OPtoS1 time of operation state to standby 1 state(Low 8 bit)*/	
#define PAJ_OPTOS2_TIME_H		0x6C		/*OPtoS1 Step, for setting the OPtoS1 time of operation state to standby 1 stateHigh 8 bit)*/	
#define PAJ_S1TOS2_TIME_L		0x6D		/*S1toS2 Step, for setting the S1toS2 time of standby 1 state to standby 2 state(Low 8 bit)*/	
#define PAJ_S1TOS2_TIME_H		0x6E		/*S1toS2 Step, for setting the S1toS2 time of standby 1 state to standby 2 stateHigh 8 bit)*/	
#define PAJ_EN					0x72		/*Enable/Disable PAJ7620U2*/
//Gesture detection interrupt flag
#define PAJ_UP				    0x01 
#define PAJ_DOWN			    0x02
#define PAJ_LEFT			    0x04 
#define PAJ_RIGHT			    0x08
#define PAJ_FORWARD			    0x10 
#define PAJ_BACKWARD		    0x20
#define PAJ_CLOCKWISE			0x40
#define PAJ_COUNT_CLOCKWISE		0x80
#define PAJ_WAVE				0x100
//Initialize array size
#define Init_Array                sizeof(Init_Register_Array)/2
#define PS_Array_SIZE             sizeof(Init_PS_Array)/2
#define Gesture_Array_SIZE        sizeof(Init_Gesture_Array)/2
//Power up initialize array
const unsigned char Init_Register_Array[][2] = {
  {0xEF,0x00},
  {0x37,0x07},
  {0x38,0x17},
  {0x39,0x06},
  {0x41,0x00},
  {0x42,0x00},
  {0x46,0x2D},
  {0x47,0x0F},
  {0x48,0x3C},
  {0x49,0x00},
  {0x4A,0x1E},
  {0x4C,0x20},
  {0x51,0x10},
  {0x5E,0x10},
  {0x60,0x27},
  {0x80,0x42},
  {0x81,0x44},
  {0x82,0x04},
  {0x8B,0x01},
  {0x90,0x06},
  {0x95,0x0A},
  {0x96,0x0C},
  {0x97,0x05},
  {0x9A,0x14},
  {0x9C,0x3F},
  {0xA5,0x19},
  {0xCC,0x19},
  {0xCD,0x0B},
  {0xCE,0x13},
  {0xCF,0x64},
  {0xD0,0x21},
  {0xEF,0x01},
  {0x02,0x0F},
  {0x03,0x10},
  {0x04,0x02},
  {0x25,0x01},
  {0x27,0x39},
  {0x28,0x7F},
  {0x29,0x08},
  {0x3E,0xFF},
  {0x5E,0x3D},
  {0x65,0x96},
  {0x67,0x97},
  {0x69,0xCD},
  {0x6A,0x01},
  {0x6D,0x2C},
  {0x6E,0x01},
  {0x72,0x01},
  {0x73,0x35},
  {0x74,0x00},
  {0x77,0x01},
};
//Approaches register initialization array
const unsigned char Init_PS_Array[][2] = {
  {0xEF,0x00},
  {0x41,0x00},
  {0x42,0x00},
  {0x48,0x3C},
  {0x49,0x00},
  {0x51,0x13},
  {0x83,0x20},
  {0x84,0x20},
  {0x85,0x00},
  {0x86,0x10},
  {0x87,0x00},
  {0x88,0x05},
  {0x89,0x18},
  {0x8A,0x10},
  {0x9f,0xf8},
  {0x69,0x96},
  {0x6A,0x02},
  {0xEF,0x01},
  {0x01,0x1E},
  {0x02,0x0F},
  {0x03,0x10},
  {0x04,0x02},
  {0x41,0x50},
  {0x43,0x34},
  {0x65,0xCE},
  {0x66,0x0B},
  {0x67,0xCE},
  {0x68,0x0B},
  {0x69,0xE9},
  {0x6A,0x05},
  {0x6B,0x50},
  {0x6C,0xC3},
  {0x6D,0x50},
  {0x6E,0xC3},
  {0x74,0x05},
};

//Gesture register initializes array
const unsigned char Init_Gesture_Array[][2] = {
  {0xEF,0x00},
  {0x41,0x00},
  {0x42,0x00},
  {0xEF,0x00},
  {0x48,0x3C},
  {0x49,0x00},
  {0x51,0x10},
  {0x83,0x20},
  {0x9F,0xF9},
  {0xEF,0x01},
  {0x01,0x1E},
  {0x02,0x0F},
  {0x03,0x10},
  {0x04,0x02},
  {0x41,0x40},
  {0x43,0x30},
  {0x65,0x96},
  {0x66,0x00},
  {0x67,0x97},
  {0x68,0x01},
  {0x69,0xCD},
  {0x6A,0x01},
  {0x6B,0xB0},
  {0x6C,0x04},
  {0x6D,0x2C},
  {0x6E,0x01},
  {0x74,0x00},
  {0xEF,0x00},
  {0x41,0xFF},
  {0x42,0x01},
};
uint8_t I2C_readByte(uint8_t  addr);
uint16_t I2C_readU16(uint8_t addr);
void I2C_writeByte(uint8_t add, uint8_t data);
uint8_t PAJ7620U2_init();
#endif