main.c

一个完整DVDROM代码(使用日立PICKUP)

/*=============================================================================
* Copyright (C) 2001 Acer Labs, Inc. All Rights Reserved.
*
* File:         MAIN.C
*
* Contents:     -
*
* History:
*   04/18/2001  develop 5705
******************************************************************************/
#include <reg52.h>
#include "typedef.h"
#include "defs.h"
#include "function.h"
#include "global.h"
#include "regdef.h"
#include "macro.h"

/*-----------------------------------------------------------------------------
 Function:  main program
 Input:     -
 Output:    -
-----------------------------------------------------------------------------*/
//#define testmain
#ifdef testmain

WORD code   trk_num_in=0;
WORD code   trk_num_ot=1;
BYTE code   jumptest=1;
BYTE code   two_point_seek=0;
BYTE code   layerjmptst=0;
WORD code   dev_trk=45500;

void main(void)
{
BYTE deca=0;    
    InitMCU();
    InitCPS();
    while(bServoState<0x04){ServoState();}
    
    if(layerjmptst&&(fTOC==1))
    {
       if ((bServoState>=0x06))
       { 
            if(deca==1)
            {
                while(JumpTracks(0,trk_num_ot)==BUSY);
                do{
                  ServoState();
                }while(bPStatus==BUSY);
    
                deca--;
                Delay10ms(100);
            }
            
            if (fServoDieFlag)
               deca=1;
            
            
            if(fDVDDual)
            {
                if(fCurrentLayer==fLayerNumber)
                {
                    fDisRdQ=1;
                    fLayerNumber=~fLayerNumber;
                }    
                else
                {
                    TP_BYTE_0=JumpLayer(fLayerNumber);
                    if(TP_BYTE_0==READY)
                    {
                        WrDSP(TACTION,0x05);
                        fNewID=0;
                    }
                    else
                    {
                        do{
                           ServoState();
                          }while(bPStatus==BUSY);
                    }  
                }
            }
            
       }  
            
    }  
          
      
 
    while(jumptest)
    {
    	#if 1
    	while(JumpTracks(1,trk_num_ot)==BUSY);
    	#else
        while(JumpTracks(0,trk_num_ot)==BUSY);
        #endif
        while(RdSectorID()==BUSY);

        Current.Min=Q.AMin;
        Current.Sec=Q.ASec;
        Current.Frm=Q.AFrm;

        TP_TIME0.Min=Target.Min;
        TP_TIME0.Sec=Target.Sec;
        TP_TIME0.Frm=Target.Frm;

        iwTrackNumber=CalculateTracks((PBYTE)&Q.AMin,(PBYTE)&TP_TIME0);

        Target.Min=Current.Min;
        Target.Sec=Current.Sec;
        Target.Frm=Current.Frm;
        
 	Delay1ms(100);
 	
#if 1
  	if(Q.AMin<=0x05)
        {
        	while(JumpTracks(0,40000)==BUSY);
        	while(RdSectorID()==BUSY);
        }
#else
        if(Q.AMin>=0x20)
        {
        	while(JumpTracks(1,40000)==BUSY);
        	while(RdSectorID()==BUSY);
        }
#endif
      /*  Current.Min=Q.AMin;
        Current.Sec=Q.ASec;
        Current.Frm=Q.AFrm;

        TP_TIME0.Min=Target.Min;
        TP_TIME0.Sec=Target.Sec;
        TP_TIME0.Frm=Target.Frm;

        iwTrackNumber=CalculateTracks((PBYTE)&Q.AMin,(PBYTE)&TP_TIME0);

        Target.Min=Current.Min;
        Target.Sec=Current.Sec;
        Target.Frm=Current.Frm;*/
    }
   

    while(two_point_seek)
    {
        Seek(0,2,0);
        do{
            ServoState();
        }while(bPStatus==BUSY);

        Target.Min=ilLeadOut/4500;
        Target.Sec=0;
        Target.Frm=0;
        Seek(Target.Min,Target.Sec,Target.Frm);
        do{
            ServoState();
        }while(bPStatus==BUSY);
    }

    while(fTOC)
    {
        CheckFlashDisc();
        ProcessReseek();
        GetIDECommand();
        DecodeState();
        VanderState();
        RuninState();
    }
}

#else

void main(void)
{
    InitMCU();
    InitCPS();
    InitUART();// 3b07a01j
#if 0    // for testing RFZC & TEZC signal (FLAG2 & FLAG3) .
    WrReg( 0x15c,(RdReg(0x15c))|0x80 );
    WrReg( 0x149,(RdReg(0x149))&0xc0|0x0c );
#endif

    while(TRUE)
    {
        if( (!fMaster) && fCheckFlashCD && (bServoState==MONITOR_STATE) && fTOC && fRuninJ ) //1b02a04j
            CheckFlashDisc();                                                                //1b02a04j

        if(fTOC && bStateFlowNo>=0xA0)
            ProcessReseek();

        if((fATACmdInt||fPktCmdInt) )//&& (bStateFlowNo==DEFAULT)) //1b02a05j***
        {
            if(bStateFlowNo==DEFAULT)
                GetIDECommand();
            else if(RdReg(ATAPIPKT0)==0x1B)
            {
                WrReg(MPACKREG2,0x04);
                WrReg(MPACKREG1,0x20);
                bStateFlowNo=DEFAULT;
                GetIDECommand();
            }
            else if((fRead10Exed||fReadCDExed)&&!fCheckFlashCD)
            {
                if(fXDone)
                {
                    fXDone=0;
                    bECCErrTimes=0;
                    bDecoderState=NORMAL;
                    ilBuffStartALBA+=UXL.WLength;
                    if(!fDMA && (bCommandPacket[0]!=0x28) && (bCommandPacket[0]!=0xAD))
                    {
                        bStateFlowNo=DEFAULT;
                        WrReg(RAIE1,RdReg(RAIE1)&0x77);
                        WrReg(0xb3,0x03);
                        WrReg(0xb1,0x50);
                        WrReg(0xb4,0x01);
                    }
                    else
                    {
                        WrReg(MPEGCFG,RdReg(MPEGCFG)&0xFD); //RS EDC always OK
                        WrReg(RAIE1,RdReg(RAIE1)&0x77);
                    }
                }
                else
                {   //abort command as time_out condition
                    fRead10Exed=0;
                    fReadCDExed=0;
                    fBufferFull=0;
                    fDSPErr=fECCErr=fEDCErr=0;

                    bTargetErrTimes=0;
                    bECCErrTimes=0;
                    ibXferCount=0;
                    ibSubChannalBit=0;
                    iwTotalSector=0;

                    bReseekFlowNo=CHECK_RESEEK;
                    bStateFlowNo=DEFAULT;

                    SetSenseCode(0x03,0x11,0x05);
                    WrReg(MPACKREG2,0x04);
                    WrReg(MPACKREG1,0x20);
                    WrReg(RAIE1,RdReg(RAIE1)&0x77);
                    WrReg(0x02,0x04); //2406a04j
                    SetCmdPhaseOver(0x51,0x05);
                    WrReg(ATASGNCTL,ASSERT_IRQ);
                }
                GetIDECommand();
            }
        }       //1b02a05j&&&

        DecodeState();
        VanderState();

        ServoState();
        RuninState();
        // 3b07a01j***
        #ifdef  _rs232
        ReData();  
        #endif
        // 3b07a01j&&&        

    }
}
#endif