touch.h

这个是针对pxa270s写的触摸屏的使用函数

/***************************************************
  Copyright(C), 2009 , JUST
  File name: touch.h
  Author: 郑慎    Version: 0.1    Date: 09/03/29
  Description: 触摸屏操作头文件
  History:
	09/03/29 V0.1
***************************************************/

// Calibration data definition
#define CAL_POINT_NUM	10	/* number of calibration pBuffer */

#define TOUCHSCREEN_DEV		"/dev/touchpanel"
#define TS_CLICK		1
#define TS_DCLICK	2
#define TS_UP		3
#define TS_DOWN		4
#define TS_LEFT		5
#define TS_RIGHT		6
#define TS_RESERVE  	0

#define UP	1
#define DOWN	2
#define LEFT	3
#define RIGHT	4	
#define STAY	0

typedef struct 
{
	int x,y;
}POINT,*PPOINT;

// TouchScreen input data structure
typedef struct 
{
	int y;
	int x;
	int pressure;
	struct timeval time;
}ts_event_t;


typedef struct
{
	struct timeval time;//操作产生时的时间
	POINT pos_start;//操作的起始位置
	POINT pos_end;//操作的终止位置
	int type;//操作类型
}TS_OP;

/*触摸屏操作函数,support_dc为是否应用双击*/
int ts_operation(TS_OP *ret,int support_dc);