ucode5.c

车载电子影音系统dvd播放系统原程序代码

#include "winav.h"
#include "w99av.h"
#include "ucode.h"
#include "cc.h"


//Kevin1.25, no matter whether SUPPORT_GZIP_COMPRESSION or not, load test tone as follows
#ifndef REMOVE_SETUP_SPEAKER_TEST


#ifdef SYSTEM_8051
DWORD code _dwTONPRAM[]=
{
    #include "tonpram.inc"
};
DWORD code _dwTONERAM[]=
{
    #include "toneram.inc"
};
#endif


#pragma DISABLE
//Kevin1.25, create to load test tone ucode
BYTE UCODE5_LoadCode(BYTE bRam, BYTE bCode)
{
   bRet = TRUE ;

    switch (bRam)
    {
    case    UCODE_DSPRAM :
        // Chuan 278 2002/10/28: Load DSP PRAM first.
        if (_bDSPramCur == bCode)
        {
            // TCC040, let upper level know that code not changed
            bRet = UCODE_LOAD_NONE ;
            break ;
        }

        _bDSPramCur = bCode ;
        switch (bCode)
        {
        case UCODE_DSPRAM_TONE:
    #ifdef SYSTEM_8051
            dwRAM = _dwTONPRAM ;
    #else
            bRet = _OpenUCODE ( "tonpram.inc" );
    #endif
            break ;
        }
        // Chuan 278 2002/10/28: Keep A_RST high
        W99AV_WriteRegDW (PCR,(WORD)(__wW99AVPCRLow|0x20), __wW99AVPCRHigh) ;
        _UCODEIndex = (WORD)dwRAM[1];
        dwRAM += START;
        for (__wTemp=0; __wTemp<_UCODEIndex; __wTemp++)
        {
            // Chuan DVD_171 12/11/2001: use simple way
#if  IO == IO_PCI
            W99AV_OutIndex (W99AV_AIRID_DSPMEM | 0x00010000L | __wTemp) ;
#else
            // Chuan1.00, Don't use function in order to reduce load code time.
            OUTB(AIR3, HIBYTE(HIWORD(W99AV_AIRID_DSPMEM))) ;
            OUTB(AIR2, LOBYTE(HIWORD(W99AV_AIRID_DSPMEM|0x00010000L))) ;
            OUTB(AIR1, HIBYTE(__wTemp)) ;
            OUTB(AIR0, LOBYTE(__wTemp)) ;
#endif
            W99AV_OutData (dwRAM [__wTemp]) ;
        }
#ifndef SYSTEM_8051
        if (pdwUcode)
        {
            _hfree(pdwUcode);
            pdwUcode = NULL;
        }
#endif
        // Chuan 278 2002/10/28: Load DSP ERAM
        switch (bCode)
        {
        case UCODE_DSPRAM_TONE:
    #ifdef SYSTEM_8051
            dwRAM = _dwTONERAM ;
    #else
            bRet = _OpenUCODE ( "toneram.inc" );
    #endif
            break ;
        }
#ifdef SUPPORT_DRAM_PROTECTION
        //Chuan1.02, unprotect ERAM
        W99AV_WriteRegDW( UCPR1, 0x0000, 0x0000);
#endif
        if (!W99AV_WriteDRAMBurst (ERAM_ADDR, &(dwRAM[START]), (WORD)dwRAM[1]))
        {
#ifdef SUPPORT_PRINTF
            printf ("\nWrite ERAM Error [0x%x] = [0x%lx]", ERAM_ADDR+_UCODEIndex, dwRAM[_UCODEIndex+2]) ;
#endif
            bRet = FALSE ;
        }
#ifdef SUPPORT_DRAM_PROTECTION
        //Chuan1.02, protect ERAM form ERAM_ADDR to ERAM_END_ADDR 
        dwTemp = 0x01000000 | ((DWORD)(ERAM_END_ADDR>>8)<<12) | ERAM_ADDR>>8;
        W99AV_WriteRegDW( UCPR1, LOWORD(dwTemp), HIWORD(dwTemp));
#endif
        // Chuan 278 2002/10/28: Release A_RST
        W99AV_WriteRegDW (PCR, __wW99AVPCRLow, __wW99AVPCRHigh) ;
        break ;
    }

#ifndef SYSTEM_8051
    if (pdwUcode)
    {
        _hfree(pdwUcode);
        pdwUcode = NULL;
    }
#endif
    return bRet ;
}

#else

//Kevin2.30, add dummy const code for *.lin
BYTE code bDummyUCODE5;

#endif //#ifndef REMOVE_SETUP_SPEAKER_TEST