#ifndef __TOUCH_H__
#define __TOUCH_H__
#include "gd32f4xx.h"
#include "systick.h"





#define SCL_RCU  		RCU_GPIOB
#define SCL_PORT 	 	GPIOB
#define SCL_PIN    		GPIO_PIN_6
#define SCL_ON			gpio_bit_set(SCL_PORT,SCL_PIN)
#define SCL_OFF			gpio_bit_reset(SCL_PORT,SCL_PIN)
#define SCL_TOGGLE		gpio_bit_toggle(SCL_PORT,SCL_PIN)

#define SDA_RCU  		RCU_GPIOB
#define SDA_PORT  		GPIOB
#define SDA_PIN    		GPIO_PIN_7
#define SDA_ON			gpio_bit_set(SDA_PORT,SDA_PIN)
#define SDA_OFF			gpio_bit_reset(SDA_PORT,SDA_PIN)
#define SDA_TOGGLE		gpio_bit_toggle(SDA_PORT,SDA_PIN)

//IO方向设置
#define CT_SDA_IN()  gpio_mode_set(SDA_PORT, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, SDA_PIN)
#define CT_SDA_OUT() gpio_mode_set(SDA_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_PULLUP, SDA_PIN)
//IO操作函数	 
#define CT_IIC_SCL    //PBout(0) 	//SCL
#define CT_IIC_SDA(val)    ((val)==1?SDA_ON:SDA_OFF)//PFout(11) //SDA	 
#define CT_READ_SDA   gpio_input_bit_get(SDA_PORT,SDA_PIN) //PFin(11)  //输入SDA 
 
#define RST_RCU             RCU_GPIOD
#define RST_PORT            GPIOD
#define RST_PIN             GPIO_PIN_12
#define RST_ON			    gpio_bit_set(RST_PORT,RST_PIN)
#define RST_OFF			    gpio_bit_reset(RST_PORT,RST_PIN)
#define RST_TOGGLE	        gpio_bit_toggle(RST_PORT,RST_PIN)

#define INT_RCU             RCU_GPIOD
#define INT_PORT            GPIOD
#define INT_PIN             GPIO_PIN_11
#define INT_ON			    gpio_bit_set(INT_PORT,INT_PIN)
#define INT_OFF			    gpio_bit_reset(INT_PORT,INT_PIN)
#define INT_TOGGLE	        gpio_bit_toggle(INT_PORT,INT_PIN)

// EXTI 中断配置
#define TOUCH_EXTI_LINE      EXTI_11
#define TOUCH_EXTI_IRQn      EXTI10_15_IRQn
extern volatile uint8_t g_touch_irq_flag;

//I2C读写命令	
#define GT_CMD_WR 		0X28    	//写命令
#define GT_CMD_RD 		0X29		//读命令
  
//GT1151 部分寄存器定义 
#define GT_CTRL_REG 	0X8040   	//GT1151控制寄存器
#define GT_CFGS_REG 	0X8050   	//GT1151地址寄存器
#define GT_CHECK_REG 	0X813C   	//GT1151验和寄存器
#define GT_PID_REG 		0X8140   	//GT1151产品ID寄存器

#define GT_GSTID_REG 	0X814E   	//GT1151前检测到的触摸情况
#define GT_TP1_REG 		0X8150  	//第一个触摸点数据地址
#define GT_TP2_REG 		0X8158		//第二个触摸点数据地址
#define GT_TP3_REG 		0X8160		//第三个触摸点数据地址
#define GT_TP4_REG 		0X8168		//第四个触摸点数据地址
#define GT_TP5_REG 		0X8170		//第五个触摸点数据地址  
 
#define TP_PRES_DOWN 0x80  //触屏被按下	  
#define TP_CATH_PRES 0x40  //有按键按下了 
#define CT_MAX_TOUCH  5    //电容屏支持的点数,固定为5点
//触摸屏控制器
typedef struct
{
//    uint8_t (*init)(void);			//初始化触摸屏控制器
//    uint8_t (*scan)(uint8_t);				//扫描触摸屏.0,屏幕扫描;1,物理坐标;	 
//    void (*adjust)(void);		//触摸屏校准 
    uint16_t x[CT_MAX_TOUCH]; 		//当前坐标
    uint16_t y[CT_MAX_TOUCH];		//电容屏有最多5组坐标,电阻屏则用x[0],y[0]代表:此次扫描时,触屏的坐标,用
    uint8_t  sta;			//笔的状态    
    float xfac;					
    float yfac;
    short xoff;
    short yoff;	   
    uint8_t touchtype;
}_m_tp_dev;
extern _m_tp_dev tp_dev;	 	//触屏控制器在touch.c里面定义

uint8_t GT1151_Send_Cfg(uint8_t mode);
uint8_t GT1151_WR_Reg(uint16_t reg,uint8_t *buf,uint8_t len);
void GT1151_RD_Reg(uint16_t reg,uint8_t *buf,uint8_t len); 
uint8_t GT1151_Init(void);
uint8_t GT1151_Scan(uint8_t mode); 

#endif