init301.c

linux-2.6.15.6

  } else if(SiS_Pr->SiS_VBType & VB_SISVB) {
     if(SiS_Pr->SiS_VBType & VB_SISLVDS) {
	/* Always center screen on SiS LVDS (if scaling is disabled) */
	SiS_Pr->SiS_LCDInfo &= ~LCDPass11;
     } else {
	/* By default, pass 1:1 on SiS TMDS (if scaling is supported) */
	if(panelcanscale)             SiS_Pr->SiS_LCDInfo |= LCDPass11;
	if(SiS_Pr->CenterScreen == 1) SiS_Pr->SiS_LCDInfo &= ~LCDPass11;
     }
  }

  SiS_Pr->PanelVCLKIdx300 = VCLK65_300;
  SiS_Pr->PanelVCLKIdx315 = VCLK108_2_315;

  switch(SiS_Pr->SiS_LCDResInfo) {
     case Panel_320x240_1:
     case Panel_320x240_2:
     case Panel_320x240_3:  SiS_Pr->PanelXRes =  640; SiS_Pr->PanelYRes =  480;
			    SiS_Pr->PanelVRS  =   24; SiS_Pr->PanelVRE  =    3;
			    SiS_Pr->PanelVCLKIdx300 = VCLK28;
			    SiS_Pr->PanelVCLKIdx315 = VCLK28;
			    break;
     case Panel_640x480:    SiS_Pr->PanelXRes =  640; SiS_Pr->PanelYRes =  480;
						      SiS_Pr->PanelVRE  =    3;
			    SiS_Pr->PanelVCLKIdx300 = VCLK28;
			    SiS_Pr->PanelVCLKIdx315 = VCLK28;
			    break;
     case Panel_800x600:    SiS_Pr->PanelXRes =  800; SiS_Pr->PanelYRes =  600;
     			    SiS_Pr->PanelHT   = 1056; SiS_Pr->PanelVT   =  628;
			    SiS_Pr->PanelHRS  =   40; SiS_Pr->PanelHRE  =  128;
			    SiS_Pr->PanelVRS  =    1; SiS_Pr->PanelVRE  =    4;
			    SiS_Pr->PanelVCLKIdx300 = VCLK40;
			    SiS_Pr->PanelVCLKIdx315 = VCLK40;
			    break;
     case Panel_1024x600:   SiS_Pr->PanelXRes = 1024; SiS_Pr->PanelYRes =  600;
			    SiS_Pr->PanelHT   = 1344; SiS_Pr->PanelVT   =  800;
			    SiS_Pr->PanelHRS  =   24; SiS_Pr->PanelHRE  =  136;
			    SiS_Pr->PanelVRS  =    2 /* 88 */ ; SiS_Pr->PanelVRE  =    6;
			    SiS_Pr->PanelVCLKIdx300 = VCLK65_300;
			    SiS_Pr->PanelVCLKIdx315 = VCLK65_315;
			    break;
     case Panel_1024x768:   SiS_Pr->PanelXRes = 1024; SiS_Pr->PanelYRes =  768;
			    SiS_Pr->PanelHT   = 1344; SiS_Pr->PanelVT   =  806;
			    SiS_Pr->PanelHRS  =   24; SiS_Pr->PanelHRE  =  136;
			    SiS_Pr->PanelVRS  =    3; SiS_Pr->PanelVRE  =    6;
			    if(SiS_Pr->ChipType < SIS_315H) {
			       SiS_Pr->PanelHRS = 23;
						      SiS_Pr->PanelVRE  =    5;
			    }
			    SiS_Pr->PanelVCLKIdx300 = VCLK65_300;
			    SiS_Pr->PanelVCLKIdx315 = VCLK65_315;
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1152x768:   SiS_Pr->PanelXRes = 1152; SiS_Pr->PanelYRes =  768;
			    SiS_Pr->PanelHT   = 1344; SiS_Pr->PanelVT   =  806;
			    SiS_Pr->PanelHRS  =   24; SiS_Pr->PanelHRE  =  136;
			    SiS_Pr->PanelVRS  =    3; SiS_Pr->PanelVRE  =    6;
			    if(SiS_Pr->ChipType < SIS_315H) {
			       SiS_Pr->PanelHRS = 23;
						      SiS_Pr->PanelVRE  =    5;
			    }
			    SiS_Pr->PanelVCLKIdx300 = VCLK65_300;
			    SiS_Pr->PanelVCLKIdx315 = VCLK65_315;
			    break;
     case Panel_1152x864:   SiS_Pr->PanelXRes = 1152; SiS_Pr->PanelYRes =  864;
			    break;
     case Panel_1280x720:   SiS_Pr->PanelXRes = 1280; SiS_Pr->PanelYRes =  720;
			    SiS_Pr->PanelHT   = 1650; SiS_Pr->PanelVT   =  750;
			    SiS_Pr->PanelHRS  =  110; SiS_Pr->PanelHRE  =   40;
			    SiS_Pr->PanelVRS  =    5; SiS_Pr->PanelVRE  =    5;
			    SiS_Pr->PanelVCLKIdx315 = VCLK_1280x720;
			    /* Data above for TMDS (projector); get from BIOS for LVDS */
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1280x768:   SiS_Pr->PanelXRes = 1280; SiS_Pr->PanelYRes =  768;
			    if(SiS_Pr->SiS_IF_DEF_LVDS == 1) {
			       SiS_Pr->PanelHT   = 1408; SiS_Pr->PanelVT   =  806;
			       SiS_Pr->PanelVCLKIdx300 = VCLK81_300; /* ? */
			       SiS_Pr->PanelVCLKIdx315 = VCLK81_315; /* ? */
			    } else {
			       SiS_Pr->PanelHT   = 1688; SiS_Pr->PanelVT   =  802;
			       SiS_Pr->PanelHRS  =   48; SiS_Pr->PanelHRS  =  112;
			       SiS_Pr->PanelVRS  =    3; SiS_Pr->PanelVRE  =    6;
			       SiS_Pr->PanelVCLKIdx300 = VCLK81_300;
			       SiS_Pr->PanelVCLKIdx315 = VCLK81_315;
			    }
			    break;
     case Panel_1280x768_2: SiS_Pr->PanelXRes = 1280; SiS_Pr->PanelYRes =  768;
			    SiS_Pr->PanelHT   = 1660; SiS_Pr->PanelVT   =  806;
			    SiS_Pr->PanelHRS  =   48; SiS_Pr->PanelHRE  =  112;
			    SiS_Pr->PanelVRS  =    3; SiS_Pr->PanelVRE  =    6;
			    SiS_Pr->PanelVCLKIdx315 = VCLK_1280x768_2;
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1280x800:   SiS_Pr->PanelXRes = 1280; SiS_Pr->PanelYRes =  800;
			    SiS_Pr->PanelHT   = 1408; SiS_Pr->PanelVT   =  816;
			    SiS_Pr->PanelHRS   =  21; SiS_Pr->PanelHRE  =   24;
			    SiS_Pr->PanelVRS   =   4; SiS_Pr->PanelVRE  =    3;
			    SiS_Pr->PanelVCLKIdx315 = VCLK_1280x800_315;
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1280x800_2: SiS_Pr->PanelXRes = 1280; SiS_Pr->PanelYRes =  800;
			    SiS_Pr->PanelHT   = 1552; SiS_Pr->PanelVT   =  812;
			    SiS_Pr->PanelHRS   =  48; SiS_Pr->PanelHRE  =  112;
			    SiS_Pr->PanelVRS   =   4; SiS_Pr->PanelVRE  =    3;
			    SiS_Pr->PanelVCLKIdx315 = VCLK_1280x800_315_2;
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1280x854:   SiS_Pr->PanelXRes = 1280; SiS_Pr->PanelYRes =  854;
			    SiS_Pr->PanelHT   = 1664; SiS_Pr->PanelVT   =  861;
			    SiS_Pr->PanelHRS   =  16; SiS_Pr->PanelHRE  =  112;
			    SiS_Pr->PanelVRS   =   1; SiS_Pr->PanelVRE  =    3;
			    SiS_Pr->PanelVCLKIdx315 = VCLK_1280x854;
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1280x960:   SiS_Pr->PanelXRes = 1280; SiS_Pr->PanelYRes =  960;
			    SiS_Pr->PanelHT   = 1800; SiS_Pr->PanelVT   = 1000;
			    SiS_Pr->PanelVCLKIdx300 = VCLK108_3_300;
			    SiS_Pr->PanelVCLKIdx315 = VCLK108_3_315;
			    if(resinfo == SIS_RI_1280x1024) {
			       SiS_Pr->PanelVCLKIdx300 = VCLK100_300;
			       SiS_Pr->PanelVCLKIdx315 = VCLK100_315;
			    }
			    break;
     case Panel_1280x1024:  SiS_Pr->PanelXRes = 1280; SiS_Pr->PanelYRes = 1024;
			    SiS_Pr->PanelHT   = 1688; SiS_Pr->PanelVT   = 1066;
			    SiS_Pr->PanelHRS  =   48; SiS_Pr->PanelHRE  =  112;
			    SiS_Pr->PanelVRS  =    1; SiS_Pr->PanelVRE  =    3;
			    SiS_Pr->PanelVCLKIdx300 = VCLK108_3_300;
			    SiS_Pr->PanelVCLKIdx315 = VCLK108_2_315;
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1400x1050:  SiS_Pr->PanelXRes = 1400; SiS_Pr->PanelYRes = 1050;
			    SiS_Pr->PanelHT   = 1688; SiS_Pr->PanelVT   = 1066;
			    SiS_Pr->PanelHRS  =   48; SiS_Pr->PanelHRE  =  112;
			    SiS_Pr->PanelVRS  =    1; SiS_Pr->PanelVRE  =    3;
			    SiS_Pr->PanelVCLKIdx315 = VCLK108_2_315;
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1600x1200:  SiS_Pr->PanelXRes = 1600; SiS_Pr->PanelYRes = 1200;
			    SiS_Pr->PanelHT   = 2160; SiS_Pr->PanelVT   = 1250;
			    SiS_Pr->PanelHRS  =   64; SiS_Pr->PanelHRE  =  192;
			    SiS_Pr->PanelVRS  =    1; SiS_Pr->PanelVRE  =    3;
			    SiS_Pr->PanelVCLKIdx315 = VCLK162_315;
			    if(SiS_Pr->SiS_VBType & VB_SISTMDSLCDA) {
			       if(SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA) {
				  SiS_Pr->PanelHT  = 1760; SiS_Pr->PanelVT  = 1235;
				  SiS_Pr->PanelHRS =   48; SiS_Pr->PanelHRE =   32;
				  SiS_Pr->PanelVRS =    2; SiS_Pr->PanelVRE =    4;
				  SiS_Pr->PanelVCLKIdx315 = VCLK130_315;
				  SiS_Pr->Alternate1600x1200 = TRUE;
			       }
			    } else if(SiS_Pr->SiS_IF_DEF_LVDS) {
			       SiS_Pr->PanelHT  = 2048; SiS_Pr->PanelVT  = 1320;
			       SiS_Pr->PanelHRS = SiS_Pr->PanelHRE = 999;
			       SiS_Pr->PanelVRS = SiS_Pr->PanelVRE = 999;
			    }
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_1680x1050:  SiS_Pr->PanelXRes = 1680; SiS_Pr->PanelYRes = 1050;
			    SiS_Pr->PanelHT   = 1900; SiS_Pr->PanelVT   = 1066;
			    SiS_Pr->PanelHRS  =   26; SiS_Pr->PanelHRE  =   76;
			    SiS_Pr->PanelVRS  =    3; SiS_Pr->PanelVRE  =    6;
			    SiS_Pr->PanelVCLKIdx315 = VCLK121_315;
			    SiS_GetLCDInfoBIOS(SiS_Pr);
			    break;
     case Panel_Barco1366:  SiS_Pr->PanelXRes = 1360; SiS_Pr->PanelYRes = 1024;
			    SiS_Pr->PanelHT   = 1688; SiS_Pr->PanelVT   = 1066;
			    break;
     case Panel_848x480:    SiS_Pr->PanelXRes =  848; SiS_Pr->PanelYRes =  480;
			    SiS_Pr->PanelHT   = 1088; SiS_Pr->PanelVT   =  525;
			    break;
     case Panel_856x480:    SiS_Pr->PanelXRes =  856; SiS_Pr->PanelYRes =  480;
			    SiS_Pr->PanelHT   = 1088; SiS_Pr->PanelVT   =  525;
			    break;
     case Panel_Custom:     SiS_Pr->PanelXRes = SiS_Pr->CP_MaxX;
			    SiS_Pr->PanelYRes = SiS_Pr->CP_MaxY;
			    SiS_Pr->PanelHT   = SiS_Pr->CHTotal;
			    SiS_Pr->PanelVT   = SiS_Pr->CVTotal;
			    if(SiS_Pr->CP_PreferredIndex != -1) {
			       SiS_Pr->PanelXRes = SiS_Pr->CP_HDisplay[SiS_Pr->CP_PreferredIndex];
			       SiS_Pr->PanelYRes = SiS_Pr->CP_VDisplay[SiS_Pr->CP_PreferredIndex];
			       SiS_Pr->PanelHT   = SiS_Pr->CP_HTotal[SiS_Pr->CP_PreferredIndex];
			       SiS_Pr->PanelVT   = SiS_Pr->CP_VTotal[SiS_Pr->CP_PreferredIndex];
			       SiS_Pr->PanelHRS  = SiS_Pr->CP_HSyncStart[SiS_Pr->CP_PreferredIndex];
			       SiS_Pr->PanelHRE  = SiS_Pr->CP_HSyncEnd[SiS_Pr->CP_PreferredIndex];
			       SiS_Pr->PanelVRS  = SiS_Pr->CP_VSyncStart[SiS_Pr->CP_PreferredIndex];
			       SiS_Pr->PanelVRE  = SiS_Pr->CP_VSyncEnd[SiS_Pr->CP_PreferredIndex];
			       SiS_Pr->PanelHRS -= SiS_Pr->PanelXRes;
			       SiS_Pr->PanelHRE -= SiS_Pr->PanelHRS;
			       SiS_Pr->PanelVRS -= SiS_Pr->PanelYRes;
			       SiS_Pr->PanelVRE -= SiS_Pr->PanelVRS;
			       if(SiS_Pr->CP_PrefClock) {
				  int idx;
				  SiS_Pr->PanelVCLKIdx315 = VCLK_CUSTOM_315;
				  SiS_Pr->PanelVCLKIdx300 = VCLK_CUSTOM_300;
				  if(SiS_Pr->ChipType < SIS_315H) idx = VCLK_CUSTOM_300;
				  else				   idx = VCLK_CUSTOM_315;
				  SiS_Pr->SiS_VCLKData[idx].CLOCK =
				     SiS_Pr->SiS_VBVCLKData[idx].CLOCK = SiS_Pr->CP_PrefClock;
				  SiS_Pr->SiS_VCLKData[idx].SR2B =
				     SiS_Pr->SiS_VBVCLKData[idx].Part4_A = SiS_Pr->CP_PrefSR2B;
				  SiS_Pr->SiS_VCLKData[idx].SR2C =
				     SiS_Pr->SiS_VBVCLKData[idx].Part4_B = SiS_Pr->CP_PrefSR2C;
			       }
			    }
			    break;
     default:		    SiS_Pr->PanelXRes = 1024; SiS_Pr->PanelYRes =  768;
			    SiS_Pr->PanelHT   = 1344; SiS_Pr->PanelVT   =  806;
			    break;
  }

  /* Special cases */
  if( (SiS_Pr->SiS_IF_DEF_FSTN)              ||
      (SiS_Pr->SiS_IF_DEF_DSTN)              ||
      (SiS_Pr->SiS_CustomT == CUT_BARCO1366) ||
      (SiS_Pr->SiS_CustomT == CUT_BARCO1024) ||
      (SiS_Pr->SiS_CustomT == CUT_PANEL848)  ||
      (SiS_Pr->SiS_CustomT == CUT_PANEL856) ) {
     SiS_Pr->PanelHRS = 999;
     SiS_Pr->PanelHRE = 999;
  }

  if( (SiS_Pr->SiS_CustomT == CUT_BARCO1366) ||
      (SiS_Pr->SiS_CustomT == CUT_BARCO1024) ||
      (SiS_Pr->SiS_CustomT == CUT_PANEL848)  ||
      (SiS_Pr->SiS_CustomT == CUT_PANEL856) ) {
     SiS_Pr->PanelVRS = 999;
     SiS_Pr->PanelVRE = 999;
  }

  /* DontExpand overrule */
  if((SiS_Pr->SiS_VBType & VB_SISVB) && (!(SiS_Pr->SiS_VBType & VB_NoLCD))) {

     if((SiS_Pr->SiS_VBInfo & SetCRT2ToLCD) && (modeflag & NoSupportLCDScale)) {
	/* No scaling for this mode on any panel (LCD=CRT2)*/
	SiS_Pr->SiS_LCDInfo |= DontExpandLCD;
     }

     switch(SiS_Pr->SiS_LCDResInfo) {

     case Panel_Custom:
     case Panel_1152x864:
     case Panel_1280x768:	/* TMDS only */
	SiS_Pr->SiS_LCDInfo |= DontExpandLCD;
	break;

     case Panel_800x600: {
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, 0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	break;
     }
     case Panel_1024x768: {
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	   SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	   0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	break;
     }
     case Panel_1280x720: {
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	   SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	   0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	if(SiS_Pr->PanelHT == 1650) {
	   SiS_Pr->SiS_LCDInfo |= DontExpandLCD;
	}
	break;
     }
     case Panel_1280x768_2: {  /* LVDS only */
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	   SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	   SIS_RI_1152x768,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	switch(resinfo) {
	case SIS_RI_1280x720:  if(SiS_Pr->UsePanelScaler == -1) {
				  SiS_Pr->SiS_LCDInfo |= DontExpandLCD;
			       }
			       break;
	}
	break;
     }
     case Panel_1280x800: {  	/* SiS TMDS special (Averatec 6200 series) */
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	   SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	   SIS_RI_1152x768,SIS_RI_1280x720,SIS_RI_1280x768,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	break;
     }
     case Panel_1280x800_2:  { 	/* SiS LVDS */
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	   SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	   SIS_RI_1152x768,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	switch(resinfo) {
	case SIS_RI_1280x720:
	case SIS_RI_1280x768:  if(SiS_Pr->UsePanelScaler == -1) {
				  SiS_Pr->SiS_LCDInfo |= DontExpandLCD;
			       }
			       break;
	}
	break;
     }
     case Panel_1280x854: {  	/* SiS LVDS */
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	   SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	   SIS_RI_1152x768,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	switch(resinfo) {
	case SIS_RI_1280x720:
	case SIS_RI_1280x768:
	case SIS_RI_1280x800:  if(SiS_Pr->UsePanelScaler == -1) {
				  SiS_Pr->SiS_LCDInfo |= DontExpandLCD;
			       }
			       break;
	}
	break;
     }
     case Panel_1280x960: {
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	   SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	   SIS_RI_1152x768,SIS_RI_1152x864,SIS_RI_1280x720,SIS_RI_1280x768,SIS_RI_1280x800,
	   SIS_RI_1280x854,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	break;
     }
     case Panel_1280x1024: {
	static const unsigned char nonscalingmodes[] = {
	   SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	   SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	   SIS_RI_1152x768,SIS_RI_1152x864,SIS_RI_1280x720,SIS_RI_1280x768,SIS_RI_1280x800,
	   SIS_RI_1280x854,SIS_RI_1280x960,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	break;
     }
     case Panel_1400x1050: {
	static const unsigned char nonscalingmodes[] = {
	     SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	     SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	     SIS_RI_1152x768,SIS_RI_1152x864,SIS_RI_1280x768,SIS_RI_1280x800,SIS_RI_1280x854,
	     SIS_RI_1280x960,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	switch(resinfo) {
	case SIS_RI_1280x720:  if(SiS_Pr->UsePanelScaler == -1) {
				  SiS_Pr->SiS_LCDInfo |= DontExpandLCD;
			       }
			       break;
	case SIS_RI_1280x1024: SiS_Pr->SiS_LCDInfo |= DontExpandLCD;
			       break;
	}
	break;
     }
     case Panel_1600x1200: {
	static const unsigned char nonscalingmodes[] = {
	     SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	     SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	     SIS_RI_1152x768,SIS_RI_1152x864,SIS_RI_1280x720,SIS_RI_1280x768,SIS_RI_1280x800,
	     SIS_RI_1280x854,SIS_RI_1280x960,SIS_RI_1360x768,SIS_RI_1360x1024,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	break;
     }
     case Panel_1680x1050: {
	static const unsigned char nonscalingmodes[] = {
	     SIS_RI_720x480, SIS_RI_720x576, SIS_RI_768x576, SIS_RI_800x480, SIS_RI_848x480,
	     SIS_RI_856x480, SIS_RI_960x540, SIS_RI_960x600, SIS_RI_1024x576,SIS_RI_1024x600,
	     SIS_RI_1152x768,SIS_RI_1152x864,SIS_RI_1280x854,SIS_RI_1280x960,SIS_RI_1360x768,
	     SIS_RI_1360x1024,0xff
	};
	SiS_CheckScaling(SiS_Pr, resinfo, nonscalingmodes);
	break;
     }
     }
  }

#ifdef SIS300
  if(SiS_Pr->SiS_IF_DEF_LVDS == 1) {
     if(SiS_Pr->SiS_CustomT == CUT_PANEL848 || SiS_Pr->SiS_CustomT == CUT_PANEL856) {
	SiS_Pr->SiS_LCDInfo = 0x80 | 0x40 | 0x20;   /* neg h/v sync, RGB24(D0 = 0) */
     }
  }

  if(SiS_Pr->ChipType < SIS_315H) {
     if(SiS_Pr->SiS_IF_DEF_LVDS == 1) {
	if(SiS_Pr->SiS_UseROM) {
	   if((ROMAddr[0x233] == 0x12) && (ROMAddr[0x234] == 0x34)) {
	      if(!(ROMAddr[0x235] & 0x02)) {
		 SiS_Pr->SiS_LCDInfo &= (~DontExpandLCD);
	      }
	   }
	}
     } else if(SiS_Pr->SiS_VBType & VB_SIS30xBLV) {
	if((SiS_Pr->SiS_SetFlag & SetDOSMode) && ((ModeNo == 0x03) || (ModeNo == 0x10))) {
	   SiS_Pr->SiS_LCDInfo &= (~DontExpandLCD);
	}
     }
  }
#endif

  /* Special cases */

  if(modexres == SiS_Pr->PanelXRes && modeyres == SiS_Pr->