w99av2.bak.c

车载电子影音系统dvd播放系统原程序代码

    // set luminance
    W99AV_WriteRegW(LAR, W99AV_LAR_VALUE); // DVD_101-2TCH, must use 0x82

    // TCC045, set bright level according to setup
    switch (__SetupInfo.bBrightness)
    {
        case SETUP_SCREEN_BRIGHTNESS_NORMAL:
            HAL_AdjustBrightView(HAL_BRIGHTVIEW_NORMAL);
            break;
        case SETUP_SCREEN_BRIGHTNESS_BRIGHT:
            HAL_AdjustBrightView(HAL_BRIGHTVIEW_BRIGHT);
            break;
        case SETUP_SCREEN_BRIGHTNESS_SOFT:
            HAL_AdjustBrightView(HAL_BRIGHTVIEW_SOFT);
            break;
        default:
            break;
    }

    // TCC045, set contrast level according to setup
    switch (__SetupInfo.bContrast)
    {
        case SETUP_SCREEN_CONTRAST_MINUS4:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL0);
            break;
        case SETUP_SCREEN_CONTRAST_MINUS3:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL1);
            break;
        case SETUP_SCREEN_CONTRAST_MINUS2:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL2);
            break;
        case SETUP_SCREEN_CONTRAST_MINUS1:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL3);
            break;
        case SETUP_SCREEN_CONTRAST_0:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL4);
            break;
        case SETUP_SCREEN_CONTRAST_PLUS1:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL5);
            break;
        case SETUP_SCREEN_CONTRAST_PLUS2:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL6);
            break;
        case SETUP_SCREEN_CONTRAST_PLUS3:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL7);
            break;
        case SETUP_SCREEN_CONTRAST_PLUS4:
            HAL_AdjustContrast(HAL_CONTRAST_LEVEL8);
            break;
        default:
            break;
    }

    W99AV_WriteRegW(DVDCTLR, 0x0);  // enable CD interface and let data in

    // LLY.276p-4, remove set audio buffer threshold action into HAL_SetBuffer()

    // Step 4: Set A/V buffer size and audio buffer start and length
    // LLY.276p-4, remove HAL_BUFFERMODE_DEFAULT case,
    // and let it refer "__bAVBufferMode" directly
    __bAVBufferMode |= 0x80;  // enable bit[7] to always set A/V buffer
    HAL_SetBuffer(HAL_SETBUFFER_AV, __bAVBufferMode);

    __wW99AVPCRLow |= 0x0020 ;
    W99AV_WriteRegDW (PCR, __wW99AVPCRLow, __wW99AVPCRHigh) ;

    /*
    __dwW99AVCmdArg [0] = 2 ;
    __dwW99AVCmdArg [1] = CMDARG_SAVCR ;
    // DVD017, TCC
    // Micky2.80q, default let audio mute
    __dwW99AVCmdArg [2] = 0x0 ;
    W99AV_CommandN (COMMAND_SAVCR) ;
    */
    //Kevin1.10, write PCMSCALE register instead of macro command (RISC IRAM code jumper table is contaminated by somebody unknown) 
    W99AV_WriteRegDW (PCMSCALER, 0, 0);            
                

    __dwW99AVCmdArg [0] = 4 ;
    __dwW99AVCmdArg [1] = CMDARG_SACR ;
    __dwW99AVCmdArg [2] = _dwACR1; //0x4e ;
#ifdef USE_INITIAL_FILE
    if ( __bW99AVAudioType==2 )
        // wyc.274j-2-Dolby, use the variable to store the setting of argument2.
        // __dwW99AVCmdArg [3] = 0x230 ;   // AC3, 0x9a 
        __dwW99AVCmdArg [3] = _dwACR2 ;   // AC3, 0x9a 
    // LLY.023 for CDDA setting
    else if(__bW99AVAudioType==0x3 || __bW99AVAudioType==0x4)  // CDDA, 0x9a
        __dwW99AVCmdArg[3] = 0x4a30; // Chuan2.80p, Always enable SPDIF
    else if (__bW99AVAudioType == 0x5)  // DTS
        __dwW99AVCmdArg[3] = 0x6e30; // Chuan2.80p, Always enable SPDIF
    else
        __dwW99AVCmdArg[3] = 0x2630; // Chuan2.80p, Always enable SPDIF
#else
    // DVD017, set default to ac3
    __dwW99AVCmdArg [3] = _dwACR2; //0x230 ;   // AC3, 0x9a
#endif  //#ifdef USE_INITIAL_FILE

    __dwW99AVCmdArg [4] = _dwACR3; //0x1840000 ;
    W99AV_CommandN (COMMAND_SACR) ;

    __wW99AVPCRLow &= 0xFFDF ;
    W99AV_WriteRegDW (PCR, __wW99AVPCRLow, __wW99AVPCRHigh) ;

    // Notice: remove this code while DSP don't refer it !!
    W99AV_WriteDM(W99AV_DM_SVCD_DOWN_SAMPLE, 0); // don't do down sample

    W99AV_WriteDM (W99AV_DM_ERROR_CONCEALMENT, VALUE_DM7F2 ) ; // SKIPMASK, mute if bitstream error

    //TCC025, rewrite PARSER FIFO Control Register after reset
    W99AV_WriteRegDW (PARFIFOCTLR, __wW99AVPARFIFOCTLRLow, __wW99AVPARFIFOCTLRHigh) ;
    // wyc1.24, default make RISC skip slice when meet error data, that can make system play more pictures but will see more mosaics.
    // 0x17d <> 0: Skip slice, more motion and more video mosaic. 0x17d == 0: Skip picture, less motion and system will pause more.
    W99AV_WriteDRAMData(0x17d, 0x10000);


    
}


// ***********************************************************************
//      Function        :       W99AV_InitialAudio
//      Description     :       Do some initial operations for DM to initial audio
//      Arguments       :       bAll:TRUE or FALSE
//      Return          :       none
//      Side Effect     :
// ***********************************************************************
#pragma DISABLE
void W99AV_InitialAudio(BYTE bAll)
{
    extern void    CHIPS_MICEnable(BYTE bEnable);

#ifdef USE_INITIAL_FILE
    // LLY.023 for CDDA setting
    if ( __bW99AVAudioType == 0x3)  // SYNen, CDDA
        W99AV_WriteDM(W99AV_DM_CRC_ENABLE, 0x0);
    else if ( __bW99AVAudioType==0x2 || __bW99AVAudioType==0x1 )
        W99AV_WriteDM (W99AV_DM_CRC_ENABLE, 0x2) ; // SYNen, AC3 with CRC, MP3
    else
        W99AV_WriteDM (W99AV_DM_CRC_ENABLE, 0x0) ; // SYNen, AC3 without CRC, MPG LI/II
#else
    W99AV_WriteDM (W99AV_DM_CRC_ENABLE, 0x2) ; // SYNen, AC3 with CRC, MP3
#endif
    W99AV_WriteDM (W99AV_DM_ERROR_CONCEALMENT, VALUE_DM7F2) ; // SKIPMASK, mute if bitstream error

    // LLY.170-3, abstract DM[0x7f3 ~ 0x7f6] setting procedure into W99AV_SetACLKFreq()
    W99AV_SetACLKFreq();

    W99AV_WriteDM (W99AV_DM_QPARA0, 0x33300) ; // Qpara0
#ifdef  USE_INITIAL_FILE
    if(__bW99AVAudioType==0x3)
        W99AV_WriteDM (W99AV_DM_QPARA1, 0x07451) ; // Qpara1, only for CDDA
    else
        W99AV_WriteDM (W99AV_DM_QPARA1, 0x07450) ; // Qpara1
#else   // #ifdef DOS_VER
    W99AV_WriteDM (W99AV_DM_QPARA1, 0x07450) ; // Qpara1
#endif  // #ifdef DOS_VER

    W99AV_WriteDM (W99AV_DM_PACKET_WPTR, 0x0780) ; // audio buffer pointer
    W99AV_WriteDM (W99AV_DM_PACKET_RPTR, 0x0780) ; // audio buffer pointer

    // Notice: remove this setting while DSP don't refer it
    W99AV_WriteDM (W99AV_DM_SVCD_DOWN_SAMPLE, 0) ;   // Disable Down Sample

    // LLY.105, initialize A/V sync control for DSP
    // otherwise, it maybe let video master and A/V hang --> go while 1st poweron
    W99AV_WriteDM(W99AV_DM_AVSYNCEN, 0x0);

//Kevin1.00, add
#ifdef  SUPPORT_6CH_OUTPUT_FOR_NONDVD
    W99AV_WriteDM(W99AV_DM_CONTROL_6CH,1);
#else
    W99AV_WriteDM(W99AV_DM_CONTROL_6CH,0);  
#endif    
 
#ifdef  SUPPORT_MPEG_AUDIO_UP_SAMPLE
    W99AV_WriteDM(W99AV_DM_UPSAMPLE_CONTROL,1);
#else
    W99AV_WriteDM(W99AV_DM_UPSAMPLE_CONTROL,0);    
#endif

//Kevin1.05, MIC/Echo
    //Kevin2.80, let CHIPS_Echo() handle W99AV_DM_ECHO_CR0 
    CHIPS_Echo(CHIPS_NORMAL); 

    //Kevin1.23, 2 to 1 sampling as MIC sampling default
    W99AV_WriteDM(W99AV_DM_ECHO_CR1, 0x2f000); // 2 to 1 sampling, right-aligned   
    //W99AV_WriteDM(W99AV_DM_ECHO_CR1, 0x27000); // 2 to 1 sampling, left-aligned
    //W99AV_WriteDM(W99AV_DM_ECHO_CR1, 0x27800); // 2 to 1 sampling, I2S-aligned    
    
    W99AV_WriteDM(W99AV_DM_MIC_CLAMPING_FACTOR, 0x7FFFF);   //gain 1    
    //W99AV_WriteDM(W99AV_DM_MIC_CLAMPING_FACTOR, 0x3FFFFf);   //gain ~0.5

    // Brian.173, enable the MIC input
    CHIPS_MICEnable(TRUE);

    //Kevin1.10, set default MIC volume
    CHIPS_MICVolControl(CHIPS_NORMAL); 

    // reset DSP after init DM variables
    __wW99AVPCRLow |= 0x0020 ;
    W99AV_WriteRegDW (PCR, __wW99AVPCRLow, __wW99AVPCRHigh) ;

    __wW99AVPCRLow &= 0xFFDF ;
    W99AV_WriteRegDW (PCR, __wW99AVPCRLow, __wW99AVPCRHigh) ;

    //Kevin1.25, set default downmix mode
    // Source 1KHz -20dB 5.1CH
    // CT908/MTK     L            R
    // LT/RT        0.57V       5.95V
    // L0/RO        4.66V       4.66V
//    CHIPS_DownMixMode(AC3_DOWNMIX_LORO);  
    CHIPS_DownMixMode(AC3_DOWNMIX_LTRT);  // jyliu 20041110, YHI down-mix surround no output issue.
	
}


//  ***********************************************************************
//  Function    :   W99AV_SetACLKFreq
//  Description :   Set Audio system clock (ACLK) frequency
//  Argument    :   None
//  Return      :   None
//  Side Effect :
//  ***********************************************************************
// LLY2.78b, add different ACLK FREQ mode setting
void W99AV_SetACLKFreq(void)
{    
	//Kevin2.37, move ahead to be called once at H/W power on to fix AC3 NEXT pop noise
    //Kevin1.24, fix 1 bit shift between MICWS & PCMWS by reseting CLK circuit
    //W99AV_WriteDM(W99AV_DM_DIV_CLK_REG, 0);    
    
// Notice: Default case is 384 mode
#ifdef  USING_256_MODE_ACLK_FREQ
    //Kevin1.05, add MIC related CLK settings
    //W99AV_WriteDM (W99AV_DM_DIV_CLK, 0x3) ; // /(n+1)
    //PCMCLK=ACLK/DIVCLK                    , PCMWS=PCMCLK/64=ACLK/256(or 384)         
    //MIC_PCMCLK(ADCCLK)=ACLK/MIC_DIVCLK    , MIC_PCMWS=PCMWS/MIC_WS_DIV
    W99AV_WriteDM (W99AV_DM_DIV_CLK, 0x0303) ; // MIC_DIVCLK[15:8] DIVCLK[7:0] 
    W99AV_WriteDM (W99AV_DM_MIC_WS_DIV, 0x1) ; // /n
    W99AV_WriteDM (W99AV_DM_FS32, 127) ; // FS32..127
    W99AV_WriteDM (W99AV_DM_FS44, 127) ; // FS44..127
    W99AV_WriteDM (W99AV_DM_FS48, 127) ; // FS48..127
#else   // default case for 384 mode
    //Kevin1.05, add MIC related CLK settings
    //W99AV_WriteDM (W99AV_DM_DIV_CLK, 0x5) ; // /(n+1)
    //PCMCLK=ACLK/DIVCLK                    , PCMWS=PCMCLK/64=ACLK/256(or 384)         
    //MIC_PCMCLK(ADCCLK)=ACLK/MIC_DIVCLK    , MIC_PCMWS=PCMWS/MIC_WS_DIV
    W99AV_WriteDM (W99AV_DM_DIV_CLK, 0x0505) ;
    W99AV_WriteDM (W99AV_DM_MIC_WS_DIV, 0x1) ; // /n  
    W99AV_WriteDM (W99AV_DM_FS32, 191) ; // FS32
    W99AV_WriteDM (W99AV_DM_FS44, 191) ; // FS44
    W99AV_WriteDM (W99AV_DM_FS48, 191) ; // FS48
#endif // #if ACLK_FREQ_MODE == 256_MODE
}


// ***********************************************************************
//      Function        :       W99AV_Reset
//      Description     :       Reset method for W9926QF
//      Arguments       :       bType:the type of reset
//      Return          :       none
//      Side Effect     :
// ***********************************************************************
void W99AV_Reset(BYTE bType)
{
#ifdef SUPPORT_PRINTF
    printf("\nRST Type:%hx", bType);  // Chuan1.05, Show reset ID.
#endif

    switch(bType)
    {
    case    W99AV_RESET_IBF : // reset Input-Bitstream FIFO
        __wW99AVPCRLow=__wW99AVPCRLow | 0x0004; // set bit(2)--IBF_RST to 1
        W99AV_WriteRegDW(PCR,__wW99AVPCRLow,__wW99AVPCRHigh);
        __wW99AVPCRLow=__wW99AVPCRLow & 0xFFFB; // set bit(2)--IBF_RST to 0
        W99AV_WriteRegDW(PCR,__wW99AVPCRLow,__wW99AVPCRHigh);
        break;

    case    W99AV_RESET_AUDIO :     // a reset sequence     to audio decoder
        __wW99AVPCRLow=__wW99AVPCRLow | 0x0020; // set bit(5)--ARST     to 1
        W99AV_WriteRegDW(PCR,__wW99AVPCRLow,__wW99AVPCRHigh);
        __wW99AVPCRLow=__wW99AVPCRLow & 0xFFDF; // set bit(5)--ARST     to 0
        W99AV_WriteRegDW(PCR,__wW99AVPCRLow,__wW99AVPCRHigh);
        W99AV_WriteDM (W99AV_DM_ERROR_CONCEALMENT, VALUE_DM7F2) ; // SKIPMASK, mute if bitstream error
        // wyc1.21, 0 indicate DSP code using 16 bit format and 1 indicate using 14 bit mode. Because only DTS will use 14 bit mode and it will judge 
        // by itsele. So SHH suggest F/W to initial it when reset DSP to avoid DTS code using wrong format to run.
        W99AV_WriteDM(0xFFC6, 0x0);
        break;

    case    W99AV_RESET_HBI : // reset Host Bus     Interface
        __wW99AVPCRLow=__wW99AVPCRLow | 0x0080; // set bit(7)--HBI_RST to 1
        W99AV_WriteRegDW(PCR,__wW99AVPCRLow,__wW99AVPCRHigh);
        __wW99AVPCRLow=__wW99AVPCRLow & 0xFF7F; // set bit(7)--HBI_RST to 0
        W99AV_WriteRegDW(PCR,__wW99AVPCRLow,__wW99AVPCRHigh);
        break;

    case    W99AV_RESET_TOTAL :  // total reset
        {
            // LLY.047, restore OSD_TOP/BOTTOM_ADDR & OSD_TOP/BOTTOM_SIZE
            // by global variables
            extern DWORD _dwTopAddr;
            extern DWORD _dwBottomAddr;
            extern DWORD _dwTopSize;
            extern DWORD _dwBottomSize;

            // temporally disable OSD display
            __wW99AVVCRLow &= ~0x00000040;  // disable OSD_EN in VCR
            // LLY.050, issue SVC2 command instead of "write REG command"
            // because some info. must tell RISC by "SVC2" command
            //W99AV_WriteRegDW(VCR, __wW99AVVCRLow, __wW99AVVCRHigh);
            __dwW99AVCmdArg [0] = 2 ;
            __dwW99AVCmdArg [1] = CMDARG_SVC2 ;
            __dwW99AVCmdArg [2] = MAKELONG (__wW99AVVCRLow, __wW99AVVCRHigh) ;
            W99AV_CommandN (COMMAND_SVC2) ;

            W99AV_WriteDRAMData( W99AV_DRAM_OSDT_ADR, 0);
            W99AV_WriteDRAMData( W99AV_DRAM_OSDB_ADR, 0);

            // do video reset in the period of VSYNC
            W99AV_ClearInterrupt(INT_VSYNC);
            wCnt=0;
            while ( (W99AV_GetPSR() & INT_VSYNC) == 0 )
            {
                wCnt++;
                if(wCnt>VSYNCLOOP)
                {
#ifdef  SUPPORT_PRINTF
                    printf("\nWait no VSYNC !!");
#endif
                    break;
                }
            }

            // DVD016, fixed total reset bug
            W99AV_WriteRegDW(DSPCTLR,0x55,0);  // dsp_ctl
            W99AV_WriteRegDW(DSPCTLR,0x0,0);  // dsp_ctl
            // Chuan0.87b, Reset SP R/W point & Disable SP decoding & Disable SP irq in order to avoid unknow sp irq.
            W99AV_Command1(COMMAND_SNVADR, CMDARG_SNVADR);
            
            W99AV_WriteRegDW(PCR,(WORD)(__wW99AVPCRLow|0x1070), __wW99AVPCRHigh);
            W99AV_WriteRegDW(PCR,(WORD)(__wW99AVPCRLow|0x20), __wW99AVPCRHigh);  // normal state
            //DVD016-1 W99AV_Command1(COMMAND_PLAY, 0xFFFF);
            W99AV_WriteRegDW(PCR,__wW99AVPCRLow, __wW99AVPCRHigh);  // normal state

            // TCC046
#ifdef INPUT_PATH_HOSTIF