init.c

该文件是rt_linux

   SiS_Pr->SiS_Panel800x600   = Panel_800x600;
   SiS_Pr->SiS_Panel1024x768  = Panel_1024x768;
   SiS_Pr->SiS_Panel1280x1024 = Panel_1280x1024;
   SiS_Pr->SiS_Panel1280x960  = Panel_1280x960;
   SiS_Pr->SiS_Panel1600x1200 = Panel_1600x1200;
   SiS_Pr->SiS_Panel1400x1050 = Panel_1400x1050;
   SiS_Pr->SiS_Panel1152x768  = Panel_1152x768;
   SiS_Pr->SiS_Panel1152x864  = Panel_1152x864;
   SiS_Pr->SiS_Panel1280x768  = Panel_1280x768;
   SiS_Pr->SiS_Panel1024x600  = Panel_1024x600;
   SiS_Pr->SiS_PanelMax       = Panel_320x480;    /* TW: highest value */
   SiS_Pr->SiS_PanelMinLVDS   = Panel_800x600;    /* TW: lowest value LVDS/LCDA */
   SiS_Pr->SiS_PanelMin301    = Panel_1024x768;   /* TW: lowest value 301 */
}
#endif

#ifdef LINUXBIOS
/* -------------- SiSInit -----------------*/
/* TW: I degraded this for LINUXBIOS only, because we
 *     don't need this otherwise
 */
BOOLEAN
SiSInit(SiS_Private *SiS_Pr, PSIS_HW_DEVICE_INFO HwDeviceExtension)
{
   UCHAR  *ROMAddr  = HwDeviceExtension->pjVirtualRomBase;
   ULONG   FBAddr   = (ULONG)HwDeviceExtension->pjVideoMemoryAddress;
   USHORT  BaseAddr = (USHORT)HwDeviceExtension->ulIOAddress;
   UCHAR   i, temp=0;
   UCHAR   SR11;
#ifdef LINUX_KERNEL
   UCHAR   temp1;
   ULONG   base;
#endif
   UCHAR   SR13=0, SR14=0, SR16=0
   UCHAR   SR17=0, SR19=0, SR1A=0;
#ifdef SIS300
   UCHAR   SR18=0, SR12=0;
#endif
#ifdef SIS315H
   UCHAR   CR37=0, CR38=0, CR79=0,
   UCHAR   CR7A=0, CR7B=0, CR7C=0;
   UCHAR   SR1B=0, SR15=0;
   PSIS_DSReg pSR;
   ULONG   Temp;
#endif
   UCHAR   VBIOSVersion[5];

   if(FBAddr==0)    return (FALSE);
   if(BaseAddr==0)  return (FALSE);

   SiS_SetReg3((USHORT)(BaseAddr+0x12),  0x67);  /* Misc */

#ifdef SIS315H
   if(HwDeviceExtension->jChipType > SIS_315PRO) {
     if(!HwDeviceExtension->bIntegratedMMEnabled)
     	return (FALSE);
   }
#endif

   SiS_MemoryCopy(VBIOSVersion,HwDeviceExtension->szVBIOSVer,4);
   VBIOSVersion[4]= 0x00;

   SiSDetermineROMUsage(SiS_Pr, HwDeviceExtension, ROMAddr);

   /* TW: Init pointers */
#ifdef SIS315H
   if((HwDeviceExtension->jChipType == SIS_315H) ||
      (HwDeviceExtension->jChipType == SIS_315PRO) ||
      (HwDeviceExtension->jChipType == SIS_550) ||
      (HwDeviceExtension->jChipType == SIS_640) ||
      (HwDeviceExtension->jChipType == SIS_740) ||
      (HwDeviceExtension->jChipType == SIS_650))
     InitTo310Pointer(SiS_Pr, HwDeviceExtension);
#endif

#ifdef SIS300
   if((HwDeviceExtension->jChipType == SIS_540) ||
      (HwDeviceExtension->jChipType == SIS_630) ||
      (HwDeviceExtension->jChipType == SIS_730) ||
      (HwDeviceExtension->jChipType == SIS_300))
     InitTo300Pointer(SiS_Pr, HwDeviceExtension);
#endif

   /* TW: Set SiS Register definitions */
   SiSRegInit(SiS_Pr, BaseAddr);

   /* TW: Determine LVDS/CH70xx/TRUMPION */
   SiS_Set_LVDS_TRUMPION(SiS_Pr, HwDeviceExtension);

   /* TW: Unlock registers */
   SiS_SetReg1(SiS_Pr->SiS_P3c4,0x05,0x86);

#ifdef LINUX_KERNEL

#ifdef SIS300                                         	/* Set SR14 */
   if((HwDeviceExtension->jChipType==SIS_540) ||
      (HwDeviceExtension->jChipType==SIS_630) ||
      (HwDeviceExtension->jChipType==SIS_730)) {
     base=0x80000060;
     OutPortLong(base,0xcf8);
     temp1 = InPortLong(0xcfc);
     temp1 >>= (16+8+4);
     temp1 &= 0x07;
     temp1++;
     temp1 = 1 << temp1;
     SR14 = temp1 - 1;
     base = 0x80000064;
     OutPortLong(base,0xcf8);
     temp1 = InPortLong(0xcfc);
     temp1 &= 0x00000020;
     if(temp1) 	SR14 |= 0x80;
     else      	SR14 |= 0x40;
   }
#endif

#ifdef SIS315H                                          /* Set SR14 */
   if(HwDeviceExtension->jChipType==SIS_550) {
     base = 0x80000060;
     OutPortLong(base,0xcf8);
     temp1 = InPortLong(0xcfc);
     temp1 >>= (16+8+4);
     temp1 &= 0x07;
     temp1++;
     temp1 = 1 << temp1;
     SR14 = temp1 - 1;
     base = 0x80000064;
     OutPortLong(base,0xcf8);
     temp1 = InPortLong(0xcfc);
     temp1 &= 0x00000020;
     if(temp1)  SR14 |= 0x80;
     else       SR14 |= 0x40;
   }

   if((HwDeviceExtension->jChipType == SIS_640) ||      /* Set SR14 */
      (HwDeviceExtension->jChipType == SIS_740) ||
      (HwDeviceExtension->jChipType == SIS_650)) {
     base = 0x80000064;
     OutPortLong(base,0xcf8);
     temp1=InPortLong(0xcfc);
     temp1 >>= 4;
     temp1 &= 0x07;
     if(temp1 > 2) {
       temp = temp1;
       switch(temp) {
        case 3: temp1 = 0x07;  break;
        case 4: temp1 = 0x0F;  break;
        case 5: temp1 = 0x1F;  break;
        case 6: temp1 = 0x05;  break;
        case 7: temp1 = 0x17;  break;
        case 8: break;
        case 9: break;
       }
     }
     SR14 = temp1;
     base = 0x8000007C;
     OutPortLong(base,0xcf8);
     temp1 = InPortLong(0xcfc);
     temp1 &= 0x00000020;
     if(temp1)  SR14 |= 0x80;
   }
#endif

#endif  /* Linux kernel */

#ifdef SIS300
   if((HwDeviceExtension->jChipType == SIS_540)||
      (HwDeviceExtension->jChipType == SIS_630)||
      (HwDeviceExtension->jChipType == SIS_730)) {
     SR12 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x12);
     SR13 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x13);
     SR14 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x14);
     SR16 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x16);
     SR17 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x17);
     SR18 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x18);
     SR19 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x19);
     SR1A = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x1A);
   } else if(HwDeviceExtension->jChipType == SIS_300){
     SR13 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x13);
     SR14 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x14);
   }
#endif
#ifdef SIS315H
   if((HwDeviceExtension->jChipType == SIS_550) ||
      (HwDeviceExtension->jChipType == SIS_640) ||
      (HwDeviceExtension->jChipType == SIS_740) ||
      (HwDeviceExtension->jChipType == SIS_650)) {
     SR19 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x19);
     SR19 = (SR19)||0x01;  /* TW: ??? || ??? */
     if(SR19==0x00) {
     	SR13 = 0x22;
     	SR14 = 0x00;
    	SR15 = 0x01;
     	SR16 = 0x00;
     	SR17 = 0x00;
     	SR1A = 0x00;
     	SR1B = 0x00;
     	CR37 = 0x00;
     	CR38 = 0x00;
     	CR79 = 0x00;
     	CR7A = 0x00;
     	CR7B = 0x00;
     	CR7C = 0x00;
     } else {
     	SR13 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x13);
     	SR14 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x14);
     	SR15 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x15);
     	SR16 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x16);
     	SR17 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x17);
     	SR1A = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x1A);
     	SR1B = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x1B);
     	CR37 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3d4,0x37);  /* TW: Was 0x02 - why? */
     	CR38 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3d4,0x38);
     	CR79 = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3d4,0x79);
     	CR7A = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3d4,0x7A);
     	CR7B = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3d4,0x7B);
     	CR7C = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3d4,0x7C);
     }
   }
#endif

   /* Reset extended registers */

   for(i=0x06; i< 0x20; i++) SiS_SetReg1(SiS_Pr->SiS_P3c4,i,0);
   for(i=0x21; i<=0x27; i++) SiS_SetReg1(SiS_Pr->SiS_P3c4,i,0);
   for(i=0x31; i<=0x3D; i++) SiS_SetReg1(SiS_Pr->SiS_P3c4,i,0);

#ifdef SIS300
   if((HwDeviceExtension->jChipType == SIS_540) ||
      (HwDeviceExtension->jChipType == SIS_630) ||
      (HwDeviceExtension->jChipType == SIS_730) ||
      (HwDeviceExtension->jChipType == SIS_300)) {
     	for(i=0x38; i<=0x3F; i++) SiS_SetReg1(SiS_Pr->SiS_P3d4,i,0);
   }
#endif

#ifdef SIS315H
   if((HwDeviceExtension->jChipType == SIS_315H) ||
      (HwDeviceExtension->jChipType == SIS_315PRO) ||
      (HwDeviceExtension->jChipType == SIS_550) ||
      (HwDeviceExtension->jChipType == SIS_640) ||
      (HwDeviceExtension->jChipType == SIS_740) ||
      (HwDeviceExtension->jChipType == SIS_650)) {
   	for(i=0x12; i<=0x1B; i++) SiS_SetReg1(SiS_Pr->SiS_P3c4,i,0);
   	for(i=0x79; i<=0x7C; i++) SiS_SetReg1(SiS_Pr->SiS_P3d4,i,0);
   }
#endif

   /* Restore Extended Registers */

#ifdef SIS300
   if((HwDeviceExtension->jChipType == SIS_540) ||
      (HwDeviceExtension->jChipType == SIS_630) ||
      (HwDeviceExtension->jChipType == SIS_730)) {
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x12,SR12);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x13,SR13);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x14,SR14);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x16,SR16);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x17,SR17);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x18,SR18);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x19,SR19);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x1A,SR1A);
   }
#endif

#ifdef SIS315H
   if((HwDeviceExtension->jChipType == SIS_550) ||
      (HwDeviceExtension->jChipType == SIS_640) ||
      (HwDeviceExtension->jChipType == SIS_740) ||
      (HwDeviceExtension->jChipType == SIS_650)) {
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x13,SR13);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x14,SR14);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x15,SR15);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x16,SR16);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x17,SR17);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x19,SR19);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x1A,SR1A);
     SiS_SetReg1(SiS_Pr->SiS_P3c4,0x1B,SR1B);
     SiS_SetReg1(SiS_Pr->SiS_P3d4,0x37,CR37);
     SiS_SetReg1(SiS_Pr->SiS_P3d4,0x38,CR38);
     SiS_SetReg1(SiS_Pr->SiS_P3d4,0x79,CR79);
     SiS_SetReg1(SiS_Pr->SiS_P3d4,0x7A,CR7A);
     SiS_SetReg1(SiS_Pr->SiS_P3d4,0x7B,CR7B);
     SiS_SetReg1(SiS_Pr->SiS_P3d4,0x7C,CR7C);
   }
#endif

#ifdef SIS300
   if((HwDeviceExtension->jChipType==SIS_540) ||
      (HwDeviceExtension->jChipType==SIS_630) ||
      (HwDeviceExtension->jChipType==SIS_730)) {
     	temp = (UCHAR)SR1A & 0x03;
   } else if(HwDeviceExtension->jChipType==SIS_300) {
        /* TW: Nothing */
   }
#endif
#ifdef SIS315H
   if((HwDeviceExtension->jChipType == SIS_315H )||
      (HwDeviceExtension->jChipType == SIS_315PRO)) {
      	if((*SiS_Pr->pSiS_SoftSetting & SoftDRAMType) == 0){
          	temp = (UCHAR)SiS_GetReg1(SiS_Pr->SiS_P3c4,0x3A) & 0x03;
        }