hal.c

车载电子影音系统dvd播放系统原程序代码

        break;
    }
}


// LLY.276p, re-arrage the control procedure
//#######################################################################
//  Function    :   HAL_AdjustTVMode
//  Description :   Set the video output to match the current TV mode
//                  after the first I is detected.
//              :   need do the setting to video output and Video DAC
//  Parameters  :   none, but reference global variable
//                  __SetupInfo.bTVSystem, current TV mode selection
//                  __btNTSCBitStream, current bitstream format
//  Return      :   None
//  Changed     :   __wW99AVVCRLow, __dwW99AVVDRR,
//                  __wW99AVHDSR, __wW99AVHDWR, __bTVType
//  Side Effect :
//  Notice      :   Calculate all necessary info. first,
//                  Then, do all setting together to avoid delay transition
//#######################################################################
// Notice: Must add "#pramga NOAREGS" w/ each APIs if it will be called by HAL_AdjustTVMode()
// So, if anyone add any function with HAL_AdjustTVMode(), please check it more
// Current sub-APIs with will be called by HAL_AdjustTVMode()
// [1] HAL_PreFillBuffer() : It's unnecessary, because it will be called while CDDA playing
//                           And, INT_IFD don't happen for CDDA playing
// [2] W99AV_WriteDRAMData() : Done !!
// [3] PANEL_Output() : Done !!
// [4] _GetVideoModeInfo() : Done !!
// [5] _ZoomVideo() : Done !!
// [6] _AspectRatioSetting() : Done !!
// [7] _TVModeSet() : Done !!
// [8] OSD_FillHeadtoDRAM() : Done !!
#pragma NOAREGS          // may be called in ISR
void HAL_AdjustTVMode(void)
{
    // LLY.047P-1, an indicator for TV mode switching of SPVA
    // DRAM[0x94]: W99AV_DRAM_TV_SWITCHING
    // 0x0: keep original SPVA value;
    // 0x10000: SPVA=SPVA-96, original SPVA will keep in DRAM (P->N)
    // 0x20000: SPVA=SPVA+96, original SPVA will keep in DRAM
    DWORD   dwSPVA=0x0;
    BYTE    bSPVAWrite=FALSE;
    BYTE    bNewTarget;

    // Step 1 : Initialize some varialbe -- LLY.051
    // LLY.276p, it's unnecessary to gvie default value of bNewTarget
    // Becaue step 7 will give correspond value base on setup info.
    //bNewTarget=SETUP_SCREEN_TV_SYSTEM_PAL;
    _wVBICTLR=NULL; // only P2N or N2P will be given value, so need default value
    _dwFrameRateCTL=NULL; // only P2N or N2P will be given value, so need default value
    __bMPEGVideoMode=MPEG_VIDEO_MODE_PAL;   // LLY.102p

    // Step 2: Prefill audio buffer near fullness before TV encoder programming
    // wyc.101 ,to fix the problems of after adjusting TV mode, the CDDA audio
    // will not continuous, so before executing adjusting TV mode, we execute 
    // SERVO_Monitor() to make the audio buffer full to avoid the audio buffer empty.
    // LLY.274, checking playing mode method has updated
    //if ((__bModePlay == MODE_PLAYCDDA) && __btPlaying && (__bKey == KEY_TVMODE))
    if((__bAttrPlay==ATTR_CDDA) && __btPlaying && (__bKey == KEY_TVMODE))
    {
        HAL_PreFillBuffer(HAL_FILL_AUDIO_BUFFER, FILL_CDDA_BUFFER_FULL);
    }

    // Step 3 : tell RISC for TV mode switching in SPVA
    // LLY.276p, initial with zero for dwSPVA value
    W99AV_WriteDRAMData(W99AV_DRAM_TV_SWITCHING, 0x0); // dwSPVA);

    // Step 4 : Base on __SetupInfo.bTVSystem to decide bNewTarget/ __bMPEGVideoMode
    switch(__SetupInfo.bTVSystem)
    {
    case    SETUP_SCREEN_TV_SYSTEM_NTSC:
        // change target to NTSC TV
        // LLY.276p, it's unnecessary to gvie value of bNewTarget
        // Becaue step 7 will give correspond value base on setup info.
        //bNewTarget=SETUP_SCREEN_TV_SYSTEM_NTSC; // LLY.046, rename NTSC_TV to SETUP_SCREEN_TV_SYSTEM_NTSC
        __bMPEGVideoMode=MPEG_VIDEO_MODE_NTSC;   // LLY.102p
        break;

    case    SETUP_SCREEN_TV_SYSTEM_AUTO:
// LLY2.80, enable this define again.
// Because, we expand __bLOGO meaning w/ bit[7] to tell LOGO display from open/close action
// And, remove the extra procedure from _OSD_ShowMPEG()
// LLY.276p, don't use this method because the checking condition is not robust
// ex. TV mode switching to AUTO mode will fail while CDDA/ MP3 playing w/ LOGO
// And, remove the procedure into _OSD_ShowMPEG() -- only do frame rate conversion
// while enable this definition.
#ifdef  LET_LOGO_TVMODE_SAME_AS_PREVIOUS_VIDEO
        // LLY.161-1, don't re-program TV mode while KEY_OPEN_COLSE
        // ie. let it same as previous video TV type
        //if(_bLOGO)
        //if(_bLOGO && __bFMMenuID==FM_MENU_NONE)
        if( (__bLOGO & LOGO_FROM_OPEN) && (__bLOGO & LOGO_DEFAULT) )
        {
            bNewTarget=__bTVType;
            if(bNewTarget==SETUP_SCREEN_TV_SYSTEM_NTSC)
                __bMPEGVideoMode=MPEG_VIDEO_MODE_NTSC;
            else
                __bMPEGVideoMode=MPEG_VIDEO_MODE_PAL;
        }
        else
#endif  // #ifdef LET_LOGO_TVMODE_SAME_AS_PREVIOUS_VIDEO
        {
            if (__btNTSCBitStream)
            {
                // change target to NTSC TV(same as bitstream format)
                bNewTarget=SETUP_SCREEN_TV_SYSTEM_NTSC;  // LLY.046, rename NTSC_TV to SETUP_SCREEN_TV_SYSTEM_NTSC
                __bMPEGVideoMode=MPEG_VIDEO_MODE_NTSC;   // LLY.102p
                // Send the information when system is in Auto-mode
                PANEL_Output ( MSG_PALTITLE, FALSE);
            }
            else
            {
                // LLY.276p, give bNewTarget value while AUTO TVMODE
                bNewTarget=SETUP_SCREEN_TV_SYSTEM_PAL;
                // Send the information when system is in Auto-mode
                PANEL_Output ( MSG_PALTITLE, TRUE);
            }
        }
        break;

    // LLY.102p, change target to PAL TV but MPEG must set as NTSC mode
    case    SETUP_SCREEN_TV_SYSTEM_PAL_M:
        // LLY.276p, it's unnecessary to gvie value of bNewTarget
        // Becaue step 7 will give correspond value base on setup info.
        //bNewTarget=SETUP_SCREEN_TV_SYSTEM_PAL;
        __bMPEGVideoMode=MPEG_VIDEO_MODE_NTSC;
        break;

    // LLY.101-2, assign default TV mode as PAL
    case    SETUP_SCREEN_TV_SYSTEM_PAL:
    case    SETUP_SCREEN_TV_SYSTEM_PAL_N:   // LLY.102p
    default:
        break;
    }

    // LLY2.80, clear bit[7] immediately because nobody will refer it
    __bLOGO &= ~(LOGO_FROM_OPEN);

    // Step 5: Re-calculate video configure relative info., ex VDS/VDW/HDS/HDW/VCR
    _GetVideoModeInfo();

    // LLY.276p, Remove "set VCR command" in last stage and issue all command together
    // To avoid the delay transition pheonomenon

    // Step 6: Calculate some info relative to SPST display
    switch(__bMPEGVideoMode)
    {
    case    MPEG_VIDEO_MODE_PAL:
        // DVD022, fix SP/OGT display position is too low bug
        // enable VBICTLR[8]:N2P for SP/OGT control
        if(__btNTSCBitStream)  // N2P
        {
            _wVBICTLR=0x0100; // enable bit[8] in VBICTLR
            _dwFrameRateCTL=0x00010000;   // DRAM[0x9f]: NTSC --> PAL
        }
        break;

    case    MPEG_VIDEO_MODE_NTSC:
        // DVD022, fix SP/OGT display position is too low bug
        if(!__btNTSCBitStream)  // P2N
        {
// LLY0.86, Splite CT9928AF & CT908 mode
// CT9928AF: VBICTLR[9] has different meaning for N2P or P2N mode
// CT908: VBICTLR[9] has same value for N2P or P2N mode
// Notice: RISC code will assign this value to VCR[17:15] directly
            _wVBICTLR = 0x0100;

            _dwFrameRateCTL = 0x00020000; // DRAM[0x9f]: PAL --> NTSC
            // DVD.037, fix DVD's SP is abnormal while TV mode switch bug
            if(__wDiscType & BOOK_DVD)
            {
                // LLY.047P-1, it's unnecessary to calculate desired SPVA
                // only to let RISC know how to do
                dwSPVA = 0x10000;
                bSPVAWrite=TRUE;
            }
        }
        break;
    }

    // Step 7: Must assign corrent TV target base on __SetupInfo.bTVSystem
    //         while TVMODE is not TVMODE_AUTO  -- LLY.101-2
    if(__SetupInfo.bTVSystem!=SETUP_SCREEN_TV_SYSTEM_AUTO)
        bNewTarget=__SetupInfo.bTVSystem;

    // LLY.276p, Remove "program TV encode action" in last stage
    // and issue all command together to avoid the delay transition pheonomenon

    // Step 8 : always read-back HLI status, because other API will refer it -- LLY.103-1
    // don't put this procedure only within DVD title
    // LLY2.78b-3, using pre-define name instead of dram address
    //W99AV_ReadDRAMData(0x47, &_dwHLIState);
    W99AV_ReadDRAMData(W99AV_DRAM_HLI_STATE, &_dwHLIState);

    // LLY.276p begin ...
    // Step 9: Collect all setting action together to avoid delay transition pheonomeon
    // Notice : Can't insert any procedure which will take more time between
    //          [9-4] and [9-6], otherwise, the delay transition phenomenon will happen
    // [9-1]: Write some DRAM value for SPST problem -- DVD.037
    //        Fix DVD's SP is abnormal while TV mode switch
    if(__wDiscType & BOOK_DVD)
    {
        // Set "W99AV_DRAM_TV_SWITCHING" value as dwSPVA
        // Notice: BA5580E need reference FullSP flag too.
        // [1] SPVA value is update : bSPVAWrite==TRUE
        // [2] No HLI exist : _dwHLIState == FALSE
        if(bSPVAWrite && !HIWORD(_dwHLIState) ) // DVD.039
        {
            // LLY.047P-1, it's unnecessary to set desired SPVA value
            // only to let RISC know how to do
            W99AV_WriteDRAMData(W99AV_DRAM_TV_SWITCHING, dwSPVA); // DRAM[0x94]
        }
    }

    // [9-2] Always specify this value, then SVCD flash problem can be fixed -- DVD0.40-2
    W99AV_WriteDRAMData(W99AV_DRAM_NTSC_PAL, _dwFrameRateCTL);  // DRAM[0x9f]: frame rate/ sp control

    // [9-3] Do zoom video and aspect ratio setting by "set video configure 1"
    //       & "clip command"
    // Notice: Don't delay too long between [9-4] & [9-5] to make sure
    //         "set video configure 1 & 2" command can be done nearly
    _ZoomVideo();
    // Micky2.32, add a function to decide switching for HD/ FD
    // Must pur after _ZoomVideo, as the function will reference _bVideoDisplayMode
    HAL_SetDecodeMode();

    _AspectRatioSetting(__SetupInfo.bAspectRatio);

    // LLY0.86, swap the [9-3] & [9-4] procedure
    // Because, F/W maybe control _wVBICTLR value within _AspectRatioSetting()
    // [9-4] Fix OGT/SP position wrong bug -- DVD0.36
    W99AV_WriteDRAMData(W99AV_DRAM_VBICTL_98, _wVBICTLR);  // DRAM[0x9b],
    W99AV_WriteDRAMData(W99AV_DRAM_VBICTL_CHANGE, 0xFFFFFFFF);  // DRAM[0x9a]

    // [9-5] Set correct video timing generator mode to PAL/NTSC in VCR
    // Notice: Issue SVC2 command instead of "write REG command"
    // because some info. must tell RISC by "SVC2" command
    __dwW99AVCmdArg [0] = 2 ;
    __dwW99AVCmdArg [1] = CMDARG_SVC2 ;
    __dwW99AVCmdArg [2] = MAKELONG (__wW99AVVCRLow, __wW99AVVCRHigh) ;
    W99AV_CommandN (COMMAND_SVC2) ;

    // [9-6] Programming TV encoder depending on your choice -- LLY.101-2
    // Assign __bTVType value for TVModeSet() base on bNewTarget
    //   --> the new TV mode is same as previous mode or
    //   --> the new video output is same as previous mode
    // LLY0.84a, need check how to integrate the checking for progressive scan
    // Now, always disable this checking for temp solution
    // Otherwise, progressive scan can't work w/o calling _TVModeSet()
    //if(bNewTarget!=__bTVType || _bVideoOutput!=__SetupInfo.bVideoOutput)
    {
        __bTVType=bNewTarget;
        _TVModeSet();
    }
    // LLY.276p end ...

    // Step 12: Prefill audio buffer near fullness before reload osd header -- wyc.101
    // LLY.274, checking playing mode method has updated
    //if ((__bModePlay == MODE_PLAYCDDA) && __btPlaying && (__bKey == KEY_TVMODE))
    if((__bAttrPlay==ATTR_CDDA) && __btPlaying && (__bKey == KEY_TVMODE))
    {
        HAL_PreFillBuffer(HAL_FILL_AUDIO_BUFFER, FILL_CDDA_BUFFER_FULL);
    }

    // Step 13: Re-load OSD header to adjust start line for each region -- LLY.101
    //          And, redraw VCD3.0 area if necessary -- LLY.275
    // Notice: Must put HAL_RedrawVCD30Area() into OSD_FillHeadtoDRAM()
    // Because, OSD module will keep current and new desired TV mode
    // And, check if do redraw VCD30 area

    // CoCo1.21, modify function prototype
    OSD_FillHeadtoDRAM(OSD_FILLHEADER_RUNTIME); // LLY.101

    // Step 14: Prefill audio buffer near fullness before exit HAL_AdjustTVMode() -- wyc.101
    // LLY.274, checking playing mode method has updated
    //if ((__bModePlay == MODE_PLAYCDDA) && __btPlaying && (__bKey == KEY_TVMODE))
    if((__bAttrPlay==ATTR_CDDA) && __btPlaying && (__bKey == KEY_TVMODE))
    {
        HAL_PreFillBuffer(HAL_FILL_AUDIO_BUFFER, FILL_CDDA_BUFFER_FULL);
    }
	#ifdef TFT_CONTROL  //yhtang_0603
	{
			if(bTFT_TVMode!=__bMPEGVideoMode)
			{
			      UTL_DelayTime(COUNT_100_MSEC, FALSE);
				_TFT_Set_TvMode(__bMPEGVideoMode);
			}
			#ifdef YHTANG_DEBUG
			_printf("\n hal.c dvd status ,change tv mode");
			#endif
	}
	#endif
}



//  *********************************************************************
//  Function    :   HAL_TVSetAPS
//  Description :   Program the desired APS function and keep it's value.
//  Arguments   :   bType, the desired APS type
//  Return      :   none
//  Side Effect :
//  *********************************************************************
void HAL_TVSetAPS ( BYTE bType )
{