mode1

采用台湾MRT晶捷公司的MRT4方案的液晶电视的程序

#if DO_COMPSYNC
	pol = RegByteIn(0x07);
    if (pol & 0x01) {
        RegBitOut(0x17, 0x80, 0x80);
#if MASCOTV_C
        RegBitOut(0x32, 0x00, 0x80);
#endif        
    }
    if (pol & 0x03 == 0x03) {
    	RegBitOut(0x18,0x00,0xc0);
    }
#endif


#if CHIMEI14_PATCH
        if ((CurrentWidth == 1024) && (CurrentHeight == 768)) {

         		if((CurrentMode == 13)                  //126 1024x768 70Hz
                && (VsyncCnt >= 0xb40) && (VsyncCnt <= 0xb50) && (HsyncCnt >= 0x8d0) && (HsyncCnt <= 0x8e0))                            
                {
                        RegByteOut(0x41, 0xA7);     
                }
        		else if((CurrentMode == 14)             //127 1024x768 72Hz
                && (VsyncCnt >= 0xa2a) && (VsyncCnt <= 0xa31) && (HsyncCnt >= 0x9d0) && (HsyncCnt <= 0x9da))
                {
                        RegByteOut(0x41, 0xa9);     
                }
            	else
                {
                        if ( !modeAdjustHt() )
                        return MODE_OUTOFSYNC;          
        		}               
        } else {
                temp = modeAdjust();
                if (temp == 0)
                	return MODE_OUTOFSYNC;
                if (temp == 2)
                	return MODE_OVERFLOW;				                	
                	
    	}    
#else    
                temp = modeAdjust();
                if (temp == 0)
                	return MODE_OUTOFSYNC;
                if (temp == 2)
                	return MODE_OVERFLOW;			
#endif    


#if DO_COLOR_TUNE
    if (!(MosaicFlag & FLAG_PORTB)) {

        	setColorRGB();      // gain
    }
#endif



		disableOSD();
		
        // clear sync flags
    	MosaicFlag &= ~FLAG_SYNCMASK;   // clear sync bits


        if ( HsyncCnt > HSYNC_KHZ(100))
        {
                if (eepData.MascotFlag & FLAG_POWERSTATUS)
                        miscTurnOnPower();
                dspMute(1);
                osdOutOfScanRange();
                miscDelay(4000);
                powerSavingMode();
                return mode;

        }
#if (CHIMEI_N141X201_C3+CHIMEI_N141X201_C4)
        else if (CurrentWidth > 1024 || CurrentHeight > 768)
        {
                dspMute(1);                  
                osdOutOfScanRange();            
        }
#endif   
    
        else if ( HsyncCnt < HSYNC_KHZ(MIN_hsync) || HsyncCnt > HSYNC_KHZ(MAX_hsync)
          || VsyncCnt > VSYNC_HZ(MIN_vsync) || VsyncCnt < VSYNC_HZ(MAX_vsync)
          || CurrentWidth > 1024 || CurrentHeight > 768)
        {
                OutWithBackground = 1;
                osdOutOfScanRange();
        }

        if (eepData.MascotFlag & FLAG_POWERSTATUS)
        {
        		RegBitOut(0x40,0x00,0x70); //mute -> normal display
                miscTurnOnPower();
                if ((eepData.MascotFlag & FLAG_FACTORY)&& ( !OutWithBackground ))
                {
                        versionMenu();
                }    
                
        }
        else
        {
                miscEnterSleepMode();             
        }
                
    return mode;
}


#define TOP_DCLK_M      0x01    // 108M
#define TOP_DCLK_N      0x19
#define ORDER_UP        1
#define ORDER_DOWN      2
#define ORDER_RETRY     8
#define MADJ_RETRY      30
#define MADJ_LIMIT      60

char modeAdjust(void)
{

	//unsigned char i;
    unsigned char val;
    char madj_cnt = 0;

#if DEBUGMSG
    printf("    ModeAdjust\n");
#endif

	miscDelay(400);
	RegByteOut(0x01,0x00);


#if MASCOT2_R2
madj_next:


    val = RegByteIn(0x01);
    if(val & 0x01)
    {
#if DEBUGMSG
        printf(" Freq is changed, sync_status = %2X\n", (unsigned int)val);
#endif
		return 2;
	}


#if 1           //MV_D
    RegByteOut(0x02, 0x00);
    RegByteOut(0xB0, 0x80);
#if 1                                         
    while( RegByteIn(0xB0)&0x80 );
#else
	val = 0;
	while( RegByteIn(0xB0)&0x80 )
	{
		val++;
		miscDelay(1);
		if (val == 255)
			goto madj_fail;
	}
#endif
    val = RegByteIn(0x02)&0x03;

    RegByteOut(0x02, 0x00);
    RegByteOut(0xB0, 0x80);
    
		    
    while ( RegByteIn(0xB0)&0x80 );

    if (val != (RegByteIn(0x02)&0x03)) goto madj_next;

    if (val == 0x01) goto madj_down;
    if (val == 0x02) goto madj_up;
#if DEBUGMSG
    if (val != 0x00) {
        printf("    ModeAdjust fail, CR02=%02X\n", (unsigned int)val);
    }
#endif
#else
    RegByteOut(0x02, 0x00);
    RegByteOut(0xB0, 0x81);
    for (i = 0; i < 100; i++) {     
        if (!(RegByteIn(0xB0)&0x80)) {
        	if (!(RegByteIn(0xB0)&0x80)) {
            	val = RegByteIn(0x02);
            	if (val & 0x01) goto madj_down;
            	if (val & 0x02) goto madj_up;
            }
        }
    }
#endif
//madj_done:
#if DEBUGMSG
    printf("    ModeAdjust done\n");
#endif
    RegByteOut(0xB0, 0x00);
    return 1;

madj_down:
#if DEBUGMSG
    printf(" DClk- : ");
#endif
    if (madj_cnt > 0) {
    #if DEBUGMSG
        printf(" Fail: U-Turn ");
    #endif

madj_fail:
        RegByteOut(0xB0, 0x00);
        return 0;		
    }
    if (madj_cnt-- < -MADJ_LIMIT) {
    #if DEBUGMSG
        printf("    Fail: overlimit ");
    #endif
    	goto madj_fail;
	}
    miscDClkDown();
    goto madj_next;

madj_up:
#if DEBUGMSG
    printf(" DClk+ : ");
#endif
    if (madj_cnt < 0) {
    #if DEBUGMSG
        printf(" Fail: U-Turn ");
    #endif
        goto madj_fail;
    }
    if (madj_cnt++ > MADJ_LIMIT) {
#if DEBUGMSG
    printf("    Fail: overlimit ");
#endif
        goto madj_fail;
    }
    miscDClkUp();
    goto madj_next;

#else //MASCOT2_R2
    unsigned char order;

    order = 0;

    RegByteOut(0xB0, 0x81);

madj0:
    RegByteOut(0x02, 0x00);

    // wait for 2 frames
    RegByteOut(0x00, 0x00);
    while (!(RegByteIn(0x00)&0x80));
    RegByteOut(0x00, 0x00);
    while (!(RegByteIn(0x00)&0x80));

    val = RegByteIn(0x02);
    if (val & 0x01) {
#if (DEBUGMSG>=2)
        printf("  Underflow");
#endif
        if (order == ORDER_UP) {
madj_err:
    #if (DEBUGMSG>=2)
            printf("        Error retry\n");
    #endif
            RegByteOut(0x2B, TOP_DCLK_M);
            RegByteOut(0x2C, TOP_DCLK_N);
            RegByteOut(0x2E, RegByteIn(0x2E));
            order = ORDER_RETRY;
            goto madj0;
        }
madj1:
        order |= ORDER_DOWN;
        miscDClkDown();
        goto madj0;
    }

    if (val & 0x02) {
#if (DEBUGMSG>=2)
        printf("  Overflow");
#endif
        if (order == ORDER_DOWN+ORDER_RETRY)
            goto madj1;

        if (order == ORDER_DOWN) {
    #if (DEBUGMSG>=2)
            printf("        Error!");
    #endif
            goto madj_err;
        }

        order = ORDER_UP;
        miscDClkUp();
        goto madj0;
    }

    RegByteOut(0xB0, 0x00);
#if DEBUGMSG
    printf("    ModeAdjust done\n");
#endif

#endif //MASCOT2_R2
}


#if CHIMEI14_PATCH
bit modeAdjustHt(void)
{
    unsigned char val, i, ht;
    char madj_cnt = 0;

#if DEBUGMSG
    printf("    ModeAdjustHt\n");
#endif

    ht = RegByteIn(0x41);

madj_next:

    RegByteOut(0x02, 0x00);
    RegByteOut(0xB0, 0x81);
    for (i = 0; i < 20; i++) {
        if (!(RegByteIn(0xB0)&0x80)) {
            val = RegByteIn(0x02);
            if (val & 0x01) goto madj_up;
            if (val & 0x02) goto madj_down;
        }
    }

//madj_done:
#if DEBUGMSG
    printf("    ModeAdjustHt done\n");
#endif
    RegByteOut(0xB0, 0x00);
    return 1;

madj_down:
#if DEBUGMSG
    printf("    Ht- : ");
#endif
    if (madj_cnt > 0) {
    #if DEBUGMSG
        printf("    Fail: U-Turn ");
    #endif
madj_fail:
        RegByteOut(0xB0, 0x00);
        return 0;
    }
    if (madj_cnt-- < -MADJ_LIMIT) {
    #if DEBUGMSG
        printf("    Fail: overlimit ");
    #endif
        goto madj_fail;
    }
    RegByteOut(0x41, --ht);