osaddtask.c

S3C44B0X全套培训资料及源代码 e008s3c44b0x

#include"..\ucos-ii\includes.h"               /* uC/OS interface */
#include "..\ucos-ii\add\osaddition.h"
#include "..\inc\drv\tchScr.h"
#include "..\inc\maro.h"

#ifdef OS_Touch_Screen_Task
	OS_STK Touch_Screen_Stack[STACKSIZE]={0, };   //Touch_Screen_Task堆栈
	void Touch_Screen_Task(void *Id);             //触摸屏任务
	#define Touch_Screen_Task_Prio      9
#endif

#ifdef OS_KeyBoard_Scan_Task
	OS_STK Key_Scan_Stack[STACKSIZE]={0, };   //Key_Test_Task堆栈
	void Key_Scan_Task(void *Id);             //键盘扫描任务
	#define Key_Scan_Task_Prio      58
#endif

OS_STK Lcd_Fresh_Stack[STACKSIZE]= {0, }; //LCD刷新任务堆栈
void Lcd_Fresh_Task(void *Id);            //LCD刷新任务
#define Lcd_Fresh_Task_Prio           59


OS_EVENT *LCDFresh_MBox;		//LCD刷新邮箱

///*****************事件定义*****************///
OS_EVENT *Lcd_Disp_Sem;                   //LCD控制权旗语
//and you can use it as folloeing:
//    Lcd_Disp_Sem=OSSemCreate(1);        //创建LCD控制权旗语,初值为1满足互斥条件//
//    OSSemPend(Lcd_Disp_Sem,0,&err);
//    OSSemPost(Lcd_Disp_Sem);

void OSAddTask_Init()
{

#ifdef OS_Touch_Screen_Task
	TchScr_init();
	OSTaskCreate(Touch_Screen_Task,  (void *)0,  (OS_STK *)&Touch_Screen_Stack[STACKSIZE-1],  Touch_Screen_Task_Prio);
#endif

#ifdef OS_KeyBoard_Scan_Task
	OSTaskCreate(Key_Scan_Task,  (void *)0,  (OS_STK *)&Key_Scan_Stack[STACKSIZE-1],  Key_Scan_Task_Prio  );
#endif
	OSTaskCreate(Lcd_Fresh_Task,  (void *)0,  (OS_STK *)&Lcd_Fresh_Stack[STACKSIZE-1],  Lcd_Fresh_Task_Prio);

	LCDFresh_MBox=OSMboxCreate(NULL);//创建LCD刷新邮箱

	Lcd_Disp_Sem=OSSemCreate(1);  //创建LCD缓冲区控制权旗语,初值为1满足互斥条件//
}

#ifdef OS_KeyBoard_Scan_Task
void Key_Scan_Task(void *Id)//指示RTOS处于正常工作中
{
	U32 key;
	POSMSG pmsg;
	Uart_Printf("begin key task \n");
	for (;;){
		key=GetKey();
		pmsg=OSCreateMessage(NULL, OSM_KEY,(key)&0xffff,key>>16);
		if(pmsg)
			SendMessage(pmsg);
	}
}
#endif

void Lcd_Fresh_Task(void *Id)
{
	INT8U err;
	Uart_Printf("begin Lcd Fresh Task\n");
	for (;;)
	{
		OSMboxPend(LCDFresh_MBox,0,&err);
		LCD_Refresh();
		OSTimeDly(250);
	}
}//Lcd_Fresh_Task

#ifdef OS_Touch_Screen_Task
void Touch_Screen_Task(void *Id)             //触摸屏任务
{
	int x,y;
	U32 TchScrAction;
	POSMSG pmsg;
	Uart_Printf("begin TouchScreen Task\n");

	for (;;){
		int oldx,oldy;
		int i;
		for(;;){
			if(TchScrAction!=TCHSCR_ACTION_DOWN && TchScrAction!=TCHSCR_ACTION_MOVE){
				if(!(rPDATC&ADS7843_PIN_PEN)){
					TchScr_GetScrXY(&x, &y);

					TchScrAction=TCHSCR_ACTION_DOWN;
					pmsg=OSCreateMessage(NULL, OSM_TOUCH_SCREEN,(y<<16)|(x&0xffff),TCHSCR_ACTION_DOWN);
					SendMessage(pmsg);

					for(i=0;i<20;i++){
						if(rPDATC&ADS7843_PIN_PEN){
							TchScrAction=TCHSCR_ACTION_UP;
							pmsg=OSCreateMessage(NULL, OSM_TOUCH_SCREEN,(y<<16)|(x&0xffff),TCHSCR_ACTION_UP);
							SendMessage(pmsg);
							break;
						}
						OSTimeDly(15);
					}
					if(i<20){	//在规定的双击时间之内抬起，检测是不是及时按下
						for(i=0;i<20;i++){
							if(!(rPDATC&ADS7843_PIN_PEN)){
								TchScrAction=TCHSCR_ACTION_DBCLICK;
								break;
							}
							OSTimeDly(15);
						}
						if(i==20)		//没有在规定的时间内按下
							TchScrAction=TCHSCR_ACTION_CLICK;
					}
					else{
						oldx=x;
						oldy=y;
					}
					break;
				}
			}
			else{
				if(rPDATC&ADS7843_PIN_PEN){	//抬起
					TchScrAction=TCHSCR_ACTION_UP;
					x=oldx;
					y=oldy;
					break;
				}
				else{
					TchScr_GetScrXY(&x, &y);
					if(ABS(oldx-x)>5 ||ABS( oldy-y)>4){
						TchScrAction=TCHSCR_ACTION_MOVE;
						break;
					}
				}
			}
			OSTimeDly(10);
		}
		oldx=x;
		oldy=y;

		pmsg=OSCreateMessage(NULL, OSM_TOUCH_SCREEN,(y<<16)|(x&0xffff),TchScrAction);
		SendMessage(pmsg);
		OSTimeDly(200);
	}
}
#endif