?? init301.c
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static BOOLEANSiS_CR36BIOSWord23d(struct SiS_Private *SiS_Pr){ unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; unsigned short temp,temp1; if(SiS_Pr->SiS_UseROM) { if((ROMAddr[0x233] == 0x12) && (ROMAddr[0x234] == 0x34)) { temp = 1 << ((SiS_GetReg(SiS_Pr->SiS_P3d4,0x36) >> 4) & 0x0f); temp1 = SISGETROMW(0x23d); if(temp1 & temp) return TRUE; } } return FALSE;}#endif/*********************************************//* HELPER: DELAY FUNCTIONS *//*********************************************/voidSiS_DDC2Delay(struct SiS_Private *SiS_Pr, unsigned int delaytime){ unsigned int i, j; for(i = 0; i < delaytime; i++) { j += SiS_GetReg(SiS_Pr->SiS_P3c4,0x05); }}#if defined(SIS300) || defined(SIS315H)static voidSiS_GenericDelay(struct SiS_Private *SiS_Pr, unsigned short delay){ SiS_DDC2Delay(SiS_Pr, delay * 36);}#endif#ifdef SIS315Hstatic voidSiS_LongDelay(struct SiS_Private *SiS_Pr, unsigned short delay){ while(delay--) { SiS_GenericDelay(SiS_Pr, 6623); }}#endif#if defined(SIS300) || defined(SIS315H)static voidSiS_ShortDelay(struct SiS_Private *SiS_Pr, unsigned short delay){ while(delay--) { SiS_GenericDelay(SiS_Pr, 66); }}#endifstatic voidSiS_PanelDelay(struct SiS_Private *SiS_Pr, unsigned short DelayTime){#if defined(SIS300) || defined(SIS315H) unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; unsigned short PanelID, DelayIndex, Delay=0;#endif if(SiS_Pr->ChipType < SIS_315H) {#ifdef SIS300 PanelID = SiS_GetReg(SiS_Pr->SiS_P3d4,0x36); if(SiS_Pr->SiS_VBType & VB_SISVB) { if(SiS_Pr->SiS_VBType & VB_SIS301) PanelID &= 0xf7; if(!(SiS_GetReg(SiS_Pr->SiS_P3c4,0x18) & 0x10)) PanelID = 0x12; } DelayIndex = PanelID >> 4; if((DelayTime >= 2) && ((PanelID & 0x0f) == 1)) { Delay = 3; } else { if(DelayTime >= 2) DelayTime -= 2; if(!(DelayTime & 0x01)) { Delay = SiS_Pr->SiS_PanelDelayTbl[DelayIndex].timer[0]; } else { Delay = SiS_Pr->SiS_PanelDelayTbl[DelayIndex].timer[1]; } if(SiS_Pr->SiS_UseROM) { if(ROMAddr[0x220] & 0x40) { if(!(DelayTime & 0x01)) Delay = (unsigned short)ROMAddr[0x225]; else Delay = (unsigned short)ROMAddr[0x226]; } } } SiS_ShortDelay(SiS_Pr, Delay);#endif /* SIS300 */ } else {#ifdef SIS315H if((SiS_Pr->ChipType >= SIS_661) || (SiS_Pr->ChipType <= SIS_315PRO) || (SiS_Pr->ChipType == SIS_330) || (SiS_Pr->SiS_ROMNew)) { if(!(DelayTime & 0x01)) { SiS_DDC2Delay(SiS_Pr, 0x1000); } else { SiS_DDC2Delay(SiS_Pr, 0x4000); } } else if((SiS_Pr->SiS_IF_DEF_LVDS == 1) /* || (SiS_Pr->SiS_CustomT == CUT_COMPAQ1280) || (SiS_Pr->SiS_CustomT == CUT_CLEVO1400) */ ) { /* 315 series, LVDS; Special */ if(SiS_Pr->SiS_IF_DEF_CH70xx == 0) { PanelID = SiS_GetReg(SiS_Pr->SiS_P3d4,0x36); if(SiS_Pr->SiS_CustomT == CUT_CLEVO1400) { if(!(SiS_GetReg(SiS_Pr->SiS_P3c4,0x1b) & 0x10)) PanelID = 0x12; } if(SiS_Pr->SiS_CustomT == CUT_COMPAQ1280) { DelayIndex = PanelID & 0x0f; } else { DelayIndex = PanelID >> 4; } if((DelayTime >= 2) && ((PanelID & 0x0f) == 1)) { Delay = 3; } else { if(DelayTime >= 2) DelayTime -= 2; if(!(DelayTime & 0x01)) { Delay = SiS_Pr->SiS_PanelDelayTblLVDS[DelayIndex].timer[0]; } else { Delay = SiS_Pr->SiS_PanelDelayTblLVDS[DelayIndex].timer[1]; } if((SiS_Pr->SiS_UseROM) && (!(SiS_Pr->SiS_ROMNew))) { if(ROMAddr[0x13c] & 0x40) { if(!(DelayTime & 0x01)) { Delay = (unsigned short)ROMAddr[0x17e]; } else { Delay = (unsigned short)ROMAddr[0x17f]; } } } } SiS_ShortDelay(SiS_Pr, Delay); } } else if(SiS_Pr->SiS_VBType & VB_SISVB) { /* 315 series, all bridges */ DelayIndex = SiS_GetReg(SiS_Pr->SiS_P3d4,0x36) >> 4; if(!(DelayTime & 0x01)) { Delay = SiS_Pr->SiS_PanelDelayTbl[DelayIndex].timer[0]; } else { Delay = SiS_Pr->SiS_PanelDelayTbl[DelayIndex].timer[1]; } Delay <<= 8; SiS_DDC2Delay(SiS_Pr, Delay); }#endif /* SIS315H */ }}#ifdef SIS315Hstatic voidSiS_PanelDelayLoop(struct SiS_Private *SiS_Pr, unsigned short DelayTime, unsigned short DelayLoop){ int i; for(i = 0; i < DelayLoop; i++) { SiS_PanelDelay(SiS_Pr, DelayTime); }}#endif/*********************************************//* HELPER: WAIT-FOR-RETRACE FUNCTIONS *//*********************************************/voidSiS_WaitRetrace1(struct SiS_Private *SiS_Pr){ unsigned short watchdog; if(SiS_GetReg(SiS_Pr->SiS_P3c4,0x1f) & 0xc0) return; if(!(SiS_GetReg(SiS_Pr->SiS_P3d4,0x17) & 0x80)) return; watchdog = 65535; while((SiS_GetRegByte(SiS_Pr->SiS_P3da) & 0x08) && --watchdog); watchdog = 65535; while((!(SiS_GetRegByte(SiS_Pr->SiS_P3da) & 0x08)) && --watchdog);}#if defined(SIS300) || defined(SIS315H)static voidSiS_WaitRetrace2(struct SiS_Private *SiS_Pr, unsigned short reg){ unsigned short watchdog; watchdog = 65535; while((SiS_GetReg(SiS_Pr->SiS_Part1Port,reg) & 0x02) && --watchdog); watchdog = 65535; while((!(SiS_GetReg(SiS_Pr->SiS_Part1Port,reg) & 0x02)) && --watchdog);}#endifstatic voidSiS_WaitVBRetrace(struct SiS_Private *SiS_Pr){ if(SiS_Pr->ChipType < SIS_315H) {#ifdef SIS300 if(SiS_Pr->SiS_VBType & VB_SIS30xBLV) { if(!(SiS_GetReg(SiS_Pr->SiS_Part1Port,0x00) & 0x20)) return; } if(!(SiS_GetReg(SiS_Pr->SiS_Part1Port,0x00) & 0x80)) { SiS_WaitRetrace1(SiS_Pr); } else { SiS_WaitRetrace2(SiS_Pr, 0x25); }#endif } else {#ifdef SIS315H if(!(SiS_GetReg(SiS_Pr->SiS_Part1Port,0x00) & 0x40)) { SiS_WaitRetrace1(SiS_Pr); } else { SiS_WaitRetrace2(SiS_Pr, 0x30); }#endif }}static voidSiS_VBWait(struct SiS_Private *SiS_Pr){ unsigned short tempal,temp,i,j; temp = 0; for(i = 0; i < 3; i++) { for(j = 0; j < 100; j++) { tempal = SiS_GetRegByte(SiS_Pr->SiS_P3da); if(temp & 0x01) { if((tempal & 0x08)) continue; else break; } else { if(!(tempal & 0x08)) continue; else break; } } temp ^= 0x01; }}static voidSiS_VBLongWait(struct SiS_Private *SiS_Pr){ if(SiS_Pr->SiS_VBInfo & SetCRT2ToTV) { SiS_VBWait(SiS_Pr); } else { SiS_WaitRetrace1(SiS_Pr); }}/*********************************************//* HELPER: MISC *//*********************************************/#ifdef SIS300static BOOLEANSiS_Is301B(struct SiS_Private *SiS_Pr){ if(SiS_GetReg(SiS_Pr->SiS_Part4Port,0x01) >= 0xb0) return TRUE; return FALSE;}#endifstatic BOOLEANSiS_CRT2IsLCD(struct SiS_Private *SiS_Pr){ if(SiS_Pr->ChipType == SIS_730) { if(SiS_GetReg(SiS_Pr->SiS_P3c4,0x13) & 0x20) return TRUE; } if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x30) & 0x20) return TRUE; return FALSE;}BOOLEANSiS_IsDualEdge(struct SiS_Private *SiS_Pr){#ifdef SIS315H if(SiS_Pr->ChipType >= SIS_315H) { if((SiS_Pr->ChipType != SIS_650) || (SiS_GetReg(SiS_Pr->SiS_P3d4,0x5f) & 0xf0)) { if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x38) & EnableDualEdge) return TRUE; } }#endif return FALSE;}BOOLEANSiS_IsVAMode(struct SiS_Private *SiS_Pr){#ifdef SIS315H unsigned short flag; if(SiS_Pr->ChipType >= SIS_315H) { flag = SiS_GetReg(SiS_Pr->SiS_P3d4,0x38); if((flag & EnableDualEdge) && (flag & SetToLCDA)) return TRUE; }#endif return FALSE;}#ifdef SIS315Hstatic BOOLEANSiS_IsVAorLCD(struct SiS_Private *SiS_Pr){ if(SiS_IsVAMode(SiS_Pr)) return TRUE; if(SiS_CRT2IsLCD(SiS_Pr)) return TRUE; return FALSE;}#endifstatic BOOLEANSiS_IsDualLink(struct SiS_Private *SiS_Pr){#ifdef SIS315H if(SiS_Pr->ChipType >= SIS_315H) { if((SiS_CRT2IsLCD(SiS_Pr)) || (SiS_IsVAMode(SiS_Pr))) { if(SiS_Pr->SiS_LCDInfo & LCDDualLink) return TRUE; } }#endif return FALSE;}#ifdef SIS315Hstatic BOOLEANSiS_TVEnabled(struct SiS_Private *SiS_Pr){ if((SiS_GetReg(SiS_Pr->SiS_Part2Port,0x00) & 0x0f) != 0x0c) return TRUE; if(SiS_Pr->SiS_VBType & VB_SISYPBPR) { if(SiS_GetReg(SiS_Pr->SiS_Part2Port,0x4d) & 0x10) return TRUE; } return FALSE;}#endif#ifdef SIS315Hstatic BOOLEANSiS_LCDAEnabled(struct SiS_Private *SiS_Pr){ if(SiS_GetReg(SiS_Pr->SiS_Part1Port,0x13) & 0x04) return TRUE; return FALSE;}#endif#ifdef SIS315Hstatic BOOLEANSiS_WeHaveBacklightCtrl(struct SiS_Private *SiS_Pr){ if((SiS_Pr->ChipType >= SIS_315H) && (SiS_Pr->ChipType < SIS_661)) { if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x79) & 0x10) return TRUE; } return FALSE;}#endif#ifdef SIS315Hstatic BOOLEANSiS_IsNotM650orLater(struct SiS_Private *SiS_Pr){ unsigned short flag; if(SiS_Pr->ChipType == SIS_650) { flag = SiS_GetReg(SiS_Pr->SiS_P3d4,0x5f) & 0xf0; /* Check for revision != A0 only */ if((flag == 0xe0) || (flag == 0xc0) || (flag == 0xb0) || (flag == 0x90)) return FALSE; } else if(SiS_Pr->ChipType >= SIS_661) return FALSE; return TRUE;}#endif#ifdef SIS315Hstatic BOOLEANSiS_IsYPbPr(struct SiS_Private *SiS_Pr){ if(SiS_Pr->ChipType >= SIS_315H) { /* YPrPb = 0x08 */ if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x38) & EnableCHYPbPr) return TRUE; } return FALSE;}#endif#ifdef SIS315Hstatic BOOLEANSiS_IsChScart(struct SiS_Private *SiS_Pr){ if(SiS_Pr->ChipType >= SIS_315H) { /* Scart = 0x04 */ if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x38) & EnableCHScart) return TRUE; } return FALSE;}#endif#ifdef SIS315Hstatic BOOLEANSiS_IsTVOrYPbPrOrScart(struct SiS_Private *SiS_Pr){ unsigned short flag; if(SiS_Pr->ChipType >= SIS_315H) { flag = SiS_GetReg(SiS_Pr->SiS_P3d4,0x30); if(flag & SetCRT2ToTV) return TRUE; flag = SiS_GetReg(SiS_Pr->SiS_P3d4,0x38); if(flag & EnableCHYPbPr) return TRUE; /* = YPrPb = 0x08 */?? 快捷鍵說明
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