m2_vsync2.c

mstar716驱动源代码

#define MARIA2

#include "DSP_maria.H"
#include "dsprw.h"
#include "Board.h"

#include "maria2_dsp_lib.h"

bit g_bMaria2_100pin;

extern WORD XDATA g_wPreVpos;
extern WORD XDATA g_wFieldLineCuntPre;
extern XDATA WORD g_wFieldLineCunt;
extern WORD XDATA g_wField1LinesPre;
extern WORD XDATA g_wField2LinesPre;
extern XDATA WORD g_wField1Lines;
extern XDATA WORD g_wField2Lines;
extern BYTE xdata g_ucCuntPhaseV;
extern BYTE xdata g_ucCuntPhaseField;
extern BYTE xdata g_ucVstartTh;
extern BYTE idata g_ucUpdateVdebounce;
extern BYTE xdata g_ucVcrPauseCunt;
extern WORD xdata g_wVtotal[3];
extern WORD xdata g_wVtotalLatch;
extern WORD xdata g_wDetPhaseV[4];
extern BYTE xdata g_ucStableCunt;
extern BYTE xdata g_wVstartCnt;
extern BYTE xdata g_ucVstartTh;
extern BYTE xdata g_ucVcunt;
extern WORD xdata g_wStrbVcuntPre;
extern WORD xdata g_wStrbVcuntPreBak[2];
extern BYTE idata g_ucDebunceFieldErr;
extern BYTE xdata g_ucInterlaceCunt;
extern BYTE idata g_ucDSP_Ctl;
extern xdata BOOL g_bDSP_PhaseChange;
extern xdata BOOL g_bDSP_SupportTV;
extern WORD xdata g_wDefaultVTotal;

extern BYTE bdata V_Flag;
extern bit bVsyncReady;
extern bit bNonInter;
extern bit bVuseHW;

extern WORD xdata g_wVSyncHTotal;
extern bit g_bVdDsp_StopInt;

BYTE* VD_DSP_GetVersion(void)
{
    return "M2 20061012"; 
}

void VD_VSync_SetHTotal( WORD wHTotal )
{
    g_wVSyncHTotal = wHTotal;
}

// Default 656_setting:
#define DSP_656_F_TGL_1_VAL     0x08
#define DSP_656_V_SET_1_VAL     0x10
#define DSP_656_V_CLR_1_VAL     0x12
#define DSP_656_F_TGL_2_VAL     0x08
#define DSP_656_V_SET_2_VAL     0x10
#define DSP_656_V_CLR_2_VAL     0x12

xdata BYTE g_ucVSync656FieldTgl;
xdata BYTE g_ucVSync656VSet;
xdata BYTE g_ucVSync656VClr;
void VD_Vsync_Set656VPosition( BYTE ucFieldTgl, BYTE ucVSet, BYTE ucVClr )
{
    g_ucVSync656FieldTgl = ucFieldTgl;
    g_ucVSync656VSet = ucVSet;
    g_ucVSync656VClr = ucVClr;
}

void SetVthreshold(BYTE ucTh)
{
    g_ucVstartTh = ucTh;
}

//*********************************************************
// InitVSYNC :
//*********************************************************
void initVSYNC(WORD wDefaultVTotal)
{
    g_wVtotalLatch = wDefaultVTotal;
    g_wVtotal[0] = g_wVtotal[1] = g_wVtotal[2] = wDefaultVTotal;

    V_Flag = 0;
    g_ucUpdateVdebounce = 0;
    //Set656VS();

//    mWriteDspRegW(0x8C, 0x10 - g_ucVsyncStart); // DSP_656_V_SET_1
//    mWriteDspRegW(0x86, 0x08 - g_ucVsyncStart); // DSP_656_F_TGL_1
//    mWriteDspRegW(0x90, 0x12 - g_ucVsyncStart); // DSP_656_V_CLR_1
//    mWriteDspRegW(0x8E, 0x10 - g_ucVsyncStart); // DSP_656_V_SET_2
//    mWriteDspRegW(0x88, 0x08 - g_ucVsyncStart); // DSP_656_F_TGL_2
//    mWriteDspRegW(0x92, 0x12 - g_ucVsyncStart); // DSP_656_V_CLR_2
    mWriteDspRegW(0x86, g_ucVSync656FieldTgl); // DSP_656_F_TGL_1
    mWriteDspRegW(0x8C, g_ucVSync656VSet); // DSP_656_V_SET_1
    mWriteDspRegW(0x90, g_ucVSync656VClr); // DSP_656_V_CLR_1
    mWriteDspRegW(0x88, g_ucVSync656FieldTgl); // DSP_656_F_TGL_2
    mWriteDspRegW(0x8E, g_ucVSync656VSet); // DSP_656_V_SET_2
    mWriteDspRegW(0x92, g_ucVSync656VClr); // DSP_656_V_CLR_2

    mWriteDspRegW(0x0e, 0x00f4);
    mWriteDspRegW(V_Total, wDefaultVTotal);
    g_ucVcrPauseCunt = 0;
    g_wField1Lines = 0;
    g_wField2Lines = 0;
    bVsyncReady = 0;
    bNonInter = 0;
    g_ucUpdateVdebounce = 0;
    mWriteDspRegW(VPLL_MODE2, 0x0347);

    g_ucStableCunt = 0;
    g_ucCuntPhaseField = 0;
    g_ucCuntPhaseV = 0;
    g_ucInterlaceCunt = 0;
    g_wVstartCnt = 0;
    g_ucVcunt = 0;
    bVuseHW = 0;
    SetVthreshold(0xff);
}

void VD_DSP_Init(void)
{
    g_bVdDsp_StopInt = 1;
    g_ucDSP_Ctl = 0;

    g_bDSP_PhaseChange = 0;

    s_ucWriteIdx = 0;
    s_ucReadIdx = 0;

    #if (MST_CHIP==MST720A)
    	g_bMaria2_100pin = 1;
    #else
	g_bMaria2_100pin = 0;
    #endif
	
	g_bDSP_SupportTV = 1;
//	g_ucVsyncStart = 0;

	VD_Vsync_Set656VPosition( DSP_656_F_TGL_1_VAL, DSP_656_V_SET_1_VAL, DSP_656_V_CLR_1_VAL );

	VD_DSP_GetVersion();

	VD_VSync_SetHTotal( 858 );
}
void VD_DSP_Ctl( BYTE ucCtl, WORD wDefaultVTotal )
{
    BYTE ucBank;
    BYTE ucBk2_07;

    g_bVdDsp_StopInt = 1; // function protect

    g_ucDSP_Ctl = ucCtl;

    ucBank = msReadByte( BK0_00 ); // Backup original bank
    msWriteByte( BK0_00, REG_BANK2_VD );
    ucBk2_07 = msReadByte( BK2_07 );


    if( ucCtl&VD_DSP_CTL_ENABLE )
    {
    #ifdef MARIA2
        mWriteDspRegW( DSP_10, msReadDspRegW(DSP_10)|0x0001 ); // SW v sycn
    #endif
    #ifdef MARIA3
        mWriteDspRegW( DSP_10, msReadDspRegW(DSP_10)|0x0081 ); // SW v sync
    #endif

        //fFlagDSP = 0;

        // Initialize V sync relative settings
        g_wDefaultVTotal = wDefaultVTotal;
        initVSYNC( wDefaultVTotal );

        s_ucWriteIdx = 0;
        s_ucReadIdx = 0;
    }
    else
    {
    #ifdef MARIA2
        mWriteDspRegW( DSP_10, msReadDspRegW(DSP_10)&0xFFFE );
    #endif
    #ifdef MARIA3
        mWriteDspRegW( DSP_10, msReadDspRegW(DSP_10)&0xFF7E );
    #endif
    }

    msWriteByte( BK2_07, ucBk2_07 );
    msWriteByte( BK0_00, ucBank );

    g_bVdDsp_StopInt = 0;
}