keypad.c

完整的软件学习--显示器驱动视频软件

#include <math.h>
#include "types.h"
#include "board.h"
#include "keypaddef.h"
#include "ms_reg.h"
#include "global.h"
#include "debug.h"
#include "misc.h"
#include "ms_rwreg.h"
#include "nvram.h"
#include "mcu.h"
#include "Menudef.h"
#include "Menu.h"

//================================================================
BYTE KeypadButton=0;
BYTE KeypadButtonCounter;
extern BYTE MenuPageIndex;
//extern BYTE LastVolumeValue;

extern void PowerOffSystem(void);
extern void PowerOnSystem(void);

BYTE Key_GetKeypadStatus(void)
{  
BYTE keypad=0xFF;
if(!Left_key)            keypad &= ~KEY_PLUS;
if(!Right_key)           keypad &= ~KEY_MINUS;
if(!Menu_key)            keypad &= ~KEY_MENU;
if(!Exit_key)            keypad &= ~KEY_AUTO;
if(!Power_key)           keypad &= ~KEY_POWER;  
return keypad;	
}

void CheckFactoryKeyStatus(void)
{ BYTE keypadStatus;
  keypadStatus=(Key_GetKeypadStatus()^KeypadMask)&KeypadMask;
#if PRV772_KeyPad
	keypadStatus=(~keypadStatus)&KeypadMask;
#endif	
if (keypadStatus==KEY_ISP)
    {    
#if (!Enable232ISP)    
    	if(FactoryModeFlag)
#endif
		{
      		Set_ISPFlag();
#if DEBUG_ENABLE
		printMsg("ISP");
#endif
		Set_PowerOnFlag();
    		}
    }
}

Bool CheckPowerKeyStatus(void)
{
    BYTE keypadStatus;

    keypadStatus=(Key_GetKeypadStatus()^KeypadMask)&KeypadMask;

#if PRV772_KeyPad
	keypadStatus=(~keypadStatus)&KeypadMask;
#endif	
	
    if (keypadStatus==KEY_POWER)
    { 
        Set_ForcePowerOffFlag();
	    return TRUE;
    }
    else
  	    return FALSE;
}


Bool Key_CheckAutoKeyOnly(void)
{
    BYTE keypadStatus;

    keypadStatus=(Key_GetKeypadStatus()^KeypadMask)&KeypadMask;
    if (keypadStatus==KEY_AUTO)
    { 
	    return TRUE;
    }
    else
  	return FALSE;
}


void Key_ScanKeypad(void)
{
    BYTE keypadStatus;
    keypadStatus=(Key_GetKeypadStatus()^KeypadMask)&KeypadMask;


    if (keypadStatus)
    {

       if (keypadStatus==(KEY_FACTORY))
  	    {  printMsg(" key FACTORY");
           if (PowerOnFlag&&EnableEnterFactory)   //NELSON Modify
             {
              Clr_EnableEnterFactory();           //NELSON
              Set_FactoryModeFlag();
              Enable_SerialPort();
              NVRam_WriteByte(nvrMonitorAddr(MonitorFlag), MonitorFlags);
		Menu_InitAction();
            }
	     else
	      {
		   if((!EnableFactoryKeyCount)&&(!FactoryModeFlag))//nelson
			 EnableFactoryKeyCount=3;                     //nelson
		 }
		   	
  	    }
	   else
	   	{
           EnableFactoryKeyCount=0;
		   
        if (keypadStatus==KEY_PLUS)
	{
	 if (KeypadButton==BTN_Repeat)
             KeypadButton=BTN_Repeat;
        else
            KeypadButton=BTN_Plus;
	}
        else if (keypadStatus==KEY_MINUS)
	{ if (KeypadButton==BTN_Repeat)
                KeypadButton=BTN_Repeat;
            else
            KeypadButton=BTN_Minus;
	}
        else if (keypadStatus==KEY_MENU)
        {
            if (KeypadButton==BTN_Menu || KeypadButton==BTN_Repeat || KeypadButton==BTN_FactoryStart)
                KeypadButton=BTN_FactoryStart;
            else
                KeypadButton=BTN_Menu;
        }
        else if (keypadStatus==KEY_AUTO)
        {
        	if(MenuPageIndex==StandbyMenu || MenuPageIndex==CableNotConnectedMenu || MenuPageIndex==DDCTypeMenu)

        			KeypadButton=BTN_Repeat;
        		else
        		{
            	if (KeypadButton==BTN_Repeat)
                KeypadButton=BTN_Repeat;
            	else
                KeypadButton=BTN_Auto;
        		}
        }
        else if (keypadStatus==KEY_POWER)
        {
            if (KeypadButton==BTN_Power || KeypadButton==BTN_Repeat)
                KeypadButton=BTN_Repeat;
        		else
        		{	if(KeypadButtonCounter<10)
        				KeypadButton=BTN_Nothing;
							else
                KeypadButton=BTN_Power;

        		}
        }

//#if 1//DUAL_INPUT
        else if (keypadStatus==KEY_DDCSWITCH)
        	{
			
				if (KeypadButton==BTN_Exit || KeypadButton==BTN_Repeat)
					KeypadButton=BTN_Repeat;
				else
					{printMsg("  DDC MOVE     ");
#if MSTMCU
                    mStar_WriteByte(DDCEN1,(mStar_ReadByte(DDCEN1)&~BIT3)|BIT4|BIT5);
					hw_SetDSUBDDC();
#else
					hw_SetDSUBDDC();
#endif
					KeypadButton=BTN_Exit;
					Set_DistinguishAutoKeyFlag();
					}
			
        	} 
 
	//KEY_RESET_PTIME
      else if (keypadStatus==KEY_RESET_PTIME)
	    {	if (KeypadButton==BTN_Menu)
					KeypadButton=BTN_Repeat;
				else
					KeypadButton=BTN_Menu;
				Set_EnableResetPTimeFlag();
      }
        else
            KeypadButton=BTN_Nothing;
    }
    	}
    else
    	{
    	EnableFactoryKeyCount=0;
        KeypadButton=BTN_Nothing;
    	}
		if(KeypadButton==BTN_Power)
			KeypadButtonCounter=0;
		else
			KeypadButtonCounter++;
}