key.c

来自「CS8955控制TV软件。用MCU做模拟电视的控制。」· C语言 代码 · 共 131 行

/******************************************************************************\
     Project Version:   MTKCARDVD()
********************************************************************************
     Filename:          Key.c

     Author:            Alan chan

     Company:           CoreTek/ACT Company

********************************************************************************
     File Version:      1.01
     File Created:      July 2007

     Compiled Using:    keil uVision2 Version 2.23 

********************************************************************************
     Files Required:

********************************************************************************
     File Description:

********************************************************************************
     File History:

--------------------------------------------------------------------------------
  Date         Name           Description
--------------------------------------------------------------------------------
  Mar. 2007    Alan chan    File Created
  
\******************************************************************************/
#include "stdio.h"

#include "global.h"
#include "irkey.h"

#include "tv.h"

#include "key.h"

extern void vInitCPU(BIT OnOff);

// Determine is long push key
BIT IsLongPushKey(BYTE key)
{
    return ((key==IR_VOLUME_UP)||(key==IR_VOLUME_DOWN));
}

// Determine is long push key or short push key
BIT IsLongPushOrShortKey(BYTE key)
{
    return ((key==IR_MODE)||(key==IR_NUM1)||(key==IR_NUM2)	
    ||(key==IR_NUM3)||(key==IR_NUM4)||(key==IR_NUM5)||(key==IR_NUM6));
}

// convert key to IR key
BYTE Key2IR(BIT long_push, BYTE prev_key)
{
    BYTE ret_key = prev_key;
	
    if (long_push)
    {
        switch (prev_key)
        {
            	case IR_MODE: 
				ret_key = IR_POWER;
			  	break;
		case IR_PLAY_PAUSE:	 
				ret_key = IR_MEM1;
				break;               
		case IR_NEXT:	 
				ret_key = IR_MEM2;
				break;               
		case IR_FF:	 
				ret_key = IR_MEM3;
				break;               
		case IR_PREV:	 
				ret_key = IR_MEM4;
				break;               
		case IR_FR:	 
				ret_key = IR_MEM5;
				break;               
		case IR_STOP:	 
				ret_key = IR_MEM6;
				break;

 		// seek-
		case IR_LEFT:	 
				ret_key = IR_PREV;
				break;               
 		// seek+
		case IR_RIGHT:	 
				ret_key = IR_NEXT;
				break;
				
		case IR_MUTE: 
				ret_key = IR_LOUD;			
				break;               			   			   			   			   			   
        }
    }

    return ret_key;
}

void KeyProcess()
{
#ifndef MARTIN_MODIFY_UPDATE_DATA   //06Jun08
    BYTE  i, chksum;
#endif

    	//02Jun08 if (_bIRKey0!=IR_NONE) 
    if ((_bIRKey0!=IR_NONE)||(bTempIrKey!=IR_NONE)) 
     {         // com=>dvd data
         #ifndef MARTIN_MCU_NO_IR  //martin 09May08
         if (_fgIRKeyValid  && (_bRemoteTimer<=5))
        #endif
	 {	            
	           vTVKeyPreProc(_bIRKey0); 	      	
	     _bPlaypostKey = _bIRKey0;
		 //02Jun08  _bPlaypostKey = bTempIrKey;
             _bIRKey0 = IR_NONE;
         }
    }		

    // mcu task for different keys
    if (_bPlaypostKey!=IR_NONE)
    {  	
	_bPlaypostKey = vTVKeyState(_bPlaypostKey);
     	_bPlaypostKey = IR_NONE;
    }		 
}