keyevent.c

来自「ucOS 模拟环境」· C语言 代码 · 共 152 行

//这个是pc版本
#include "typedef.h"

#include "draw.h"
#ifndef PCVER
#include "skb.h"
#include "lcd.h"
#include "biostest.h"
#else
	#include "keydef.h"
	#include "keyEvent.h"
#endif


extern  Bool HasPCKey();
extern	uchar GetPCKey ();	
extern  void ClearPCKey(void);


/*extern "c"
{
	KEYCODE bi_GetKeyEvent( void );
	KEYCODE bi_ScanKeyEvent( void );
	void bi_ClrKeyEvent( void );
	H bi_ChkKeyBuff( void );
	void bi_KeyResetCodeOn( H mode );
	}
*/




void ClearKey()
{
#ifdef PCVER
	ClearPCKey();
#endif
}


//=====================================================================================
// Function Name:	uchar GetKey ()
// Purpose      :	
// Parameter    :	
// Return       :	key id
// Remarks      :	Get a key from queue
// Change Log   :	
//                Author       Date       Description	
//              -----------------------------------------------	
//=====================================================================================

ulong GetKey (short event)
{
	KEYCODE		Key;
	ulong       temp_key;
	
#ifndef PCVER
	while(1)
	{
		Key = GetKeyEvent(&event);
		if(IsInvalidRepeat(Key)) 
			continue;
			else
		break;
	}
	Key.D &= 0x0000ffff;
	if(!(Key.D & 0x000000ff))
	{
		Key.D = ((Key.D >> 8) & 0x000000ff); 
	}
	temp_key = Key.D ;
	//_Print( "\n%d", Key.D );

#else
	extern void SuspendTask(void );
	while(1)
	{
		if(HasPCKey())
		{
			temp_key = GetPCKey();
			ClearKey();
			break;
		}
		SuspendTask();
	}
	
#endif
	return temp_key;

}

//======================================================================
// Function	:	uchar	KeyWait (void)
// Parameter:	None
// Return   :	Key value
// Remarks  :	Reduce the power cousumption, and wait a key
//======================================================================
/*uchar	KeyWait (void)
{
	uchar	Key;

	//	No Key pressing now.
	Key = UCHAR_N1;

	Wakeup = 0;

	//	loop:
	while(1)
	{
		//	Disable interrupt.
		di(); 

		#ifndef PCVER
			AutoTest (AT_READY);
			if (GetCoverStatus()==COVER_OFF)	Sleep ();
		#endif

		//	Check key buffer, if there is key in it, read it and return.
		Key = ReadKey ();
		if (Key != 0xff)
			break;		
		//	Enable interrupt.
		//	Halt the microprocessor until interrupts request to wake it.
	#ifndef PCVER
		if(!IsKeyPressing && !gucTime3Cnt)	//---add by zsz for scankey		
		   SYSCR1 = SYSCR1 | 0x02;   //Fc/4		6MHz	

		NOP16();
	#endif
		
		halt ();
	
	#ifndef PCVER
		di(); //2002.06.28 patch bug that sometimes cover open then halt
      NOP16();
      
		SYSCR1 = 0;
		Wait100us();

		if(Wakeup==1)
		{			         
			IsBattLow();
         Wakeup = 0;
		}
	#endif
	}	
	
	ei ();

	//	Return key code.
	return Key;
}*/