#ifndef __TOUCH_H__
#define __TOUCH_H__
#include "bsp.h"

#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
   
typedef struct _s_touch TOUCH;

//电阻屏函数
uint16_t TP_Read_AD(TOUCH *touch,uint8_t CMD);							//读取AD转换值
uint16_t TP_Read_XOY(TOUCH *touch,uint8_t xy);							//带滤波的坐标读取(X/Y)
uint8_t TP_Read_XY(TOUCH *touch,uint16_t *x,uint16_t *y);					//双方向读取(X+Y)
uint8_t TP_Read_XY2(TOUCH *touch,uint16_t *x,uint16_t *y);					//带加强滤波的双方向坐标读取
void TP_Drow_Touch_Point(uint16_t x,uint16_t y,uint16_t color);//画一个坐标校准点
void TP_Draw_Big_Point(uint16_t x,uint16_t y,uint16_t color);	//画一个大点
void TP_Save_Adjdata(void);						//保存校准参数
uint8_t TP_Get_Adjdata(void);						//读取校准参数
void TP_Adjust(TOUCH *touch);							//触摸屏校准
void TP_Adj_Info_Show(uint16_t x0,uint16_t y0,uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2,uint16_t x3,uint16_t y3,uint16_t fac);//显示校准信息
//电阻屏/电容屏 共用函数
uint8_t TP_Scan(TOUCH *touch,uint8_t tp);								//扫描
uint8_t TP_Init(TOUCH *touch);								//初始化
 
 struct _s_touch{
	float xfac;					
	float yfac;
	short xoff;
	short yoff;	
	uint16_t xpos[CT_MAX_TOUCH];
	uint16_t ypos[CT_MAX_TOUCH]; 
	uint8_t  sta;	 			//笔的状态 
								//b7:按下1/松开0; 
								//b6:0,没有按键按下;1,有按键按下. 
								//b5:保留
								//b4~b0:电容触摸屏按下的点数(0,表示未按下,1表示按下)
    SPI spi;
    OutputPort cs;
	InputPort pen;
	uint8_t (*Init)(TOUCH *touch);			//初始化触摸屏控制器
	uint8_t (*scan)(TOUCH *touch,uint8_t tp);				//扫描触摸屏.0,屏幕扫描;1,物理坐标;	 
	void (*adjust)(TOUCH *touch);		//触摸屏校准 
};
TOUCH new_touch(uint32_t spi_gpio,uint32_t sck_pinx,\
						uint32_t miso_pinx,uint32_t mosi_pinx,uint32_t spix,\
						uint32_t cs_gpio,uint32_t cs_pinx,
						uint32_t pen_gpio,uint32_t pen_pinx);

#endif