diff options
Diffstat (limited to 'drivers/video/fbdev/sis/init.c')
| -rw-r--r-- | drivers/video/fbdev/sis/init.c | 3631 |
1 files changed, 3631 insertions, 0 deletions
diff --git a/drivers/video/fbdev/sis/init.c b/drivers/video/fbdev/sis/init.c new file mode 100644 index 000000000..2ba91d62a --- /dev/null +++ b/drivers/video/fbdev/sis/init.c @@ -0,0 +1,3631 @@ +/* $XFree86$ */ +/* $XdotOrg$ */ +/* + * Mode initializing code (CRT1 section) for + * for SiS 300/305/540/630/730, + * SiS 315/550/[M]650/651/[M]661[FGM]X/[M]74x[GX]/330/[M]76x[GX], + * XGI Volari V3XT/V5/V8, Z7 + * (Universal module for Linux kernel framebuffer and X.org/XFree86 4.x) + * + * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria + * + * If distributed as part of the Linux kernel, the following license terms + * apply: + * + * * This program is free software; you can redistribute it and/or modify + * * it under the terms of the GNU General Public License as published by + * * the Free Software Foundation; either version 2 of the named License, + * * or any later version. + * * + * * This program is distributed in the hope that it will be useful, + * * but WITHOUT ANY WARRANTY; without even the implied warranty of + * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * * GNU General Public License for more details. + * * + * * You should have received a copy of the GNU General Public License + * * along with this program; if not, write to the Free Software + * * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA + * + * Otherwise, the following license terms apply: + * + * * Redistribution and use in source and binary forms, with or without + * * modification, are permitted provided that the following conditions + * * are met: + * * 1) Redistributions of source code must retain the above copyright + * * notice, this list of conditions and the following disclaimer. + * * 2) Redistributions in binary form must reproduce the above copyright + * * notice, this list of conditions and the following disclaimer in the + * * documentation and/or other materials provided with the distribution. + * * 3) The name of the author may not be used to endorse or promote products + * * derived from this software without specific prior written permission. + * * + * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Author: Thomas Winischhofer <thomas@winischhofer.net> + * + * Formerly based on non-functional code-fragements for 300 series by SiS, Inc. + * Used by permission. + */ + +#include "init.h" + +#ifdef CONFIG_FB_SIS_300 +#include "300vtbl.h" +#endif + +#ifdef CONFIG_FB_SIS_315 +#include "310vtbl.h" +#endif + +#if defined(ALLOC_PRAGMA) +#pragma alloc_text(PAGE,SiSSetMode) +#endif + +/*********************************************/ +/* POINTER INITIALIZATION */ +/*********************************************/ + +#if defined(CONFIG_FB_SIS_300) || defined(CONFIG_FB_SIS_315) +static void +InitCommonPointer(struct SiS_Private *SiS_Pr) +{ + SiS_Pr->SiS_SModeIDTable = SiS_SModeIDTable; + SiS_Pr->SiS_StResInfo = SiS_StResInfo; + SiS_Pr->SiS_ModeResInfo = SiS_ModeResInfo; + SiS_Pr->SiS_StandTable = SiS_StandTable; + + SiS_Pr->SiS_NTSCTiming = SiS_NTSCTiming; + SiS_Pr->SiS_PALTiming = SiS_PALTiming; + SiS_Pr->SiS_HiTVSt1Timing = SiS_HiTVSt1Timing; + SiS_Pr->SiS_HiTVSt2Timing = SiS_HiTVSt2Timing; + + SiS_Pr->SiS_HiTVExtTiming = SiS_HiTVExtTiming; + SiS_Pr->SiS_HiTVGroup3Data = SiS_HiTVGroup3Data; + SiS_Pr->SiS_HiTVGroup3Simu = SiS_HiTVGroup3Simu; +#if 0 + SiS_Pr->SiS_HiTVTextTiming = SiS_HiTVTextTiming; + SiS_Pr->SiS_HiTVGroup3Text = SiS_HiTVGroup3Text; +#endif + + SiS_Pr->SiS_StPALData = SiS_StPALData; + SiS_Pr->SiS_ExtPALData = SiS_ExtPALData; + SiS_Pr->SiS_StNTSCData = SiS_StNTSCData; + SiS_Pr->SiS_ExtNTSCData = SiS_ExtNTSCData; + SiS_Pr->SiS_St1HiTVData = SiS_StHiTVData; + SiS_Pr->SiS_St2HiTVData = SiS_St2HiTVData; + SiS_Pr->SiS_ExtHiTVData = SiS_ExtHiTVData; + SiS_Pr->SiS_St525iData = SiS_StNTSCData; + SiS_Pr->SiS_St525pData = SiS_St525pData; + SiS_Pr->SiS_St750pData = SiS_St750pData; + SiS_Pr->SiS_Ext525iData = SiS_ExtNTSCData; + SiS_Pr->SiS_Ext525pData = SiS_ExtNTSCData; + SiS_Pr->SiS_Ext750pData = SiS_Ext750pData; + + SiS_Pr->pSiS_OutputSelect = &SiS_OutputSelect; + SiS_Pr->pSiS_SoftSetting = &SiS_SoftSetting; + + SiS_Pr->SiS_LCD1280x720Data = SiS_LCD1280x720Data; + SiS_Pr->SiS_StLCD1280x768_2Data = SiS_StLCD1280x768_2Data; + SiS_Pr->SiS_ExtLCD1280x768_2Data = SiS_ExtLCD1280x768_2Data; + SiS_Pr->SiS_LCD1280x800Data = SiS_LCD1280x800Data; + SiS_Pr->SiS_LCD1280x800_2Data = SiS_LCD1280x800_2Data; + SiS_Pr->SiS_LCD1280x854Data = SiS_LCD1280x854Data; + SiS_Pr->SiS_LCD1280x960Data = SiS_LCD1280x960Data; + SiS_Pr->SiS_StLCD1400x1050Data = SiS_StLCD1400x1050Data; + SiS_Pr->SiS_ExtLCD1400x1050Data = SiS_ExtLCD1400x1050Data; + SiS_Pr->SiS_LCD1680x1050Data = SiS_LCD1680x1050Data; + SiS_Pr->SiS_StLCD1600x1200Data = SiS_StLCD1600x1200Data; + SiS_Pr->SiS_ExtLCD1600x1200Data = SiS_ExtLCD1600x1200Data; + SiS_Pr->SiS_NoScaleData = SiS_NoScaleData; + + SiS_Pr->SiS_LVDS320x240Data_1 = SiS_LVDS320x240Data_1; + SiS_Pr->SiS_LVDS320x240Data_2 = SiS_LVDS320x240Data_2; + SiS_Pr->SiS_LVDS640x480Data_1 = SiS_LVDS640x480Data_1; + SiS_Pr->SiS_LVDS800x600Data_1 = SiS_LVDS800x600Data_1; + SiS_Pr->SiS_LVDS1024x600Data_1 = SiS_LVDS1024x600Data_1; + SiS_Pr->SiS_LVDS1024x768Data_1 = SiS_LVDS1024x768Data_1; + + SiS_Pr->SiS_LVDSCRT1320x240_1 = SiS_LVDSCRT1320x240_1; + SiS_Pr->SiS_LVDSCRT1320x240_2 = SiS_LVDSCRT1320x240_2; + SiS_Pr->SiS_LVDSCRT1320x240_2_H = SiS_LVDSCRT1320x240_2_H; + SiS_Pr->SiS_LVDSCRT1320x240_3 = SiS_LVDSCRT1320x240_3; + SiS_Pr->SiS_LVDSCRT1320x240_3_H = SiS_LVDSCRT1320x240_3_H; + SiS_Pr->SiS_LVDSCRT1640x480_1 = SiS_LVDSCRT1640x480_1; + SiS_Pr->SiS_LVDSCRT1640x480_1_H = SiS_LVDSCRT1640x480_1_H; +#if 0 + SiS_Pr->SiS_LVDSCRT11024x600_1 = SiS_LVDSCRT11024x600_1; + SiS_Pr->SiS_LVDSCRT11024x600_1_H = SiS_LVDSCRT11024x600_1_H; + SiS_Pr->SiS_LVDSCRT11024x600_2 = SiS_LVDSCRT11024x600_2; + SiS_Pr->SiS_LVDSCRT11024x600_2_H = SiS_LVDSCRT11024x600_2_H; +#endif + + SiS_Pr->SiS_CHTVUNTSCData = SiS_CHTVUNTSCData; + SiS_Pr->SiS_CHTVONTSCData = SiS_CHTVONTSCData; + + SiS_Pr->SiS_PanelMinLVDS = Panel_800x600; /* lowest value LVDS/LCDA */ + SiS_Pr->SiS_PanelMin301 = Panel_1024x768; /* lowest value 301 */ +} +#endif + +#ifdef CONFIG_FB_SIS_300 +static void +InitTo300Pointer(struct SiS_Private *SiS_Pr) +{ + InitCommonPointer(SiS_Pr); + + SiS_Pr->SiS_VBModeIDTable = SiS300_VBModeIDTable; + SiS_Pr->SiS_EModeIDTable = SiS300_EModeIDTable; + SiS_Pr->SiS_RefIndex = SiS300_RefIndex; + SiS_Pr->SiS_CRT1Table = SiS300_CRT1Table; + if(SiS_Pr->ChipType == SIS_300) { + SiS_Pr->SiS_MCLKData_0 = SiS300_MCLKData_300; /* 300 */ + } else { + SiS_Pr->SiS_MCLKData_0 = SiS300_MCLKData_630; /* 630, 730 */ + } + SiS_Pr->SiS_VCLKData = SiS300_VCLKData; + SiS_Pr->SiS_VBVCLKData = (struct SiS_VBVCLKData *)SiS300_VCLKData; + + SiS_Pr->SiS_SR15 = SiS300_SR15; + + SiS_Pr->SiS_PanelDelayTbl = SiS300_PanelDelayTbl; + SiS_Pr->SiS_PanelDelayTblLVDS = SiS300_PanelDelayTbl; + + SiS_Pr->SiS_ExtLCD1024x768Data = SiS300_ExtLCD1024x768Data; + SiS_Pr->SiS_St2LCD1024x768Data = SiS300_St2LCD1024x768Data; + SiS_Pr->SiS_ExtLCD1280x1024Data = SiS300_ExtLCD1280x1024Data; + SiS_Pr->SiS_St2LCD1280x1024Data = SiS300_St2LCD1280x1024Data; + + SiS_Pr->SiS_CRT2Part2_1024x768_1 = SiS300_CRT2Part2_1024x768_1; + SiS_Pr->SiS_CRT2Part2_1024x768_2 = SiS300_CRT2Part2_1024x768_2; + SiS_Pr->SiS_CRT2Part2_1024x768_3 = SiS300_CRT2Part2_1024x768_3; + + SiS_Pr->SiS_CHTVUPALData = SiS300_CHTVUPALData; + SiS_Pr->SiS_CHTVOPALData = SiS300_CHTVOPALData; + SiS_Pr->SiS_CHTVUPALMData = SiS_CHTVUNTSCData; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVOPALMData = SiS_CHTVONTSCData; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVUPALNData = SiS300_CHTVUPALData; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVOPALNData = SiS300_CHTVOPALData; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVSOPALData = SiS300_CHTVSOPALData; + + SiS_Pr->SiS_LVDS848x480Data_1 = SiS300_LVDS848x480Data_1; + SiS_Pr->SiS_LVDS848x480Data_2 = SiS300_LVDS848x480Data_2; + SiS_Pr->SiS_LVDSBARCO1024Data_1 = SiS300_LVDSBARCO1024Data_1; + SiS_Pr->SiS_LVDSBARCO1366Data_1 = SiS300_LVDSBARCO1366Data_1; + SiS_Pr->SiS_LVDSBARCO1366Data_2 = SiS300_LVDSBARCO1366Data_2; + + SiS_Pr->SiS_PanelType04_1a = SiS300_PanelType04_1a; + SiS_Pr->SiS_PanelType04_2a = SiS300_PanelType04_2a; + SiS_Pr->SiS_PanelType04_1b = SiS300_PanelType04_1b; + SiS_Pr->SiS_PanelType04_2b = SiS300_PanelType04_2b; + + SiS_Pr->SiS_CHTVCRT1UNTSC = SiS300_CHTVCRT1UNTSC; + SiS_Pr->SiS_CHTVCRT1ONTSC = SiS300_CHTVCRT1ONTSC; + SiS_Pr->SiS_CHTVCRT1UPAL = SiS300_CHTVCRT1UPAL; + SiS_Pr->SiS_CHTVCRT1OPAL = SiS300_CHTVCRT1OPAL; + SiS_Pr->SiS_CHTVCRT1SOPAL = SiS300_CHTVCRT1SOPAL; + SiS_Pr->SiS_CHTVReg_UNTSC = SiS300_CHTVReg_UNTSC; + SiS_Pr->SiS_CHTVReg_ONTSC = SiS300_CHTVReg_ONTSC; + SiS_Pr->SiS_CHTVReg_UPAL = SiS300_CHTVReg_UPAL; + SiS_Pr->SiS_CHTVReg_OPAL = SiS300_CHTVReg_OPAL; + SiS_Pr->SiS_CHTVReg_UPALM = SiS300_CHTVReg_UNTSC; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVReg_OPALM = SiS300_CHTVReg_ONTSC; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVReg_UPALN = SiS300_CHTVReg_UPAL; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVReg_OPALN = SiS300_CHTVReg_OPAL; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVReg_SOPAL = SiS300_CHTVReg_SOPAL; + SiS_Pr->SiS_CHTVVCLKUNTSC = SiS300_CHTVVCLKUNTSC; + SiS_Pr->SiS_CHTVVCLKONTSC = SiS300_CHTVVCLKONTSC; + SiS_Pr->SiS_CHTVVCLKUPAL = SiS300_CHTVVCLKUPAL; + SiS_Pr->SiS_CHTVVCLKOPAL = SiS300_CHTVVCLKOPAL; + SiS_Pr->SiS_CHTVVCLKUPALM = SiS300_CHTVVCLKUNTSC; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVVCLKOPALM = SiS300_CHTVVCLKONTSC; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVVCLKUPALN = SiS300_CHTVVCLKUPAL; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVVCLKOPALN = SiS300_CHTVVCLKOPAL; /* not supported on 300 series */ + SiS_Pr->SiS_CHTVVCLKSOPAL = SiS300_CHTVVCLKSOPAL; +} +#endif + +#ifdef CONFIG_FB_SIS_315 +static void +InitTo310Pointer(struct SiS_Private *SiS_Pr) +{ + InitCommonPointer(SiS_Pr); + + SiS_Pr->SiS_EModeIDTable = SiS310_EModeIDTable; + SiS_Pr->SiS_RefIndex = SiS310_RefIndex; + SiS_Pr->SiS_CRT1Table = SiS310_CRT1Table; + if(SiS_Pr->ChipType >= SIS_340) { + SiS_Pr->SiS_MCLKData_0 = SiS310_MCLKData_0_340; /* 340 + XGI */ + } else if(SiS_Pr->ChipType >= SIS_761) { + SiS_Pr->SiS_MCLKData_0 = SiS310_MCLKData_0_761; /* 761 - preliminary */ + } else if(SiS_Pr->ChipType >= SIS_760) { + SiS_Pr->SiS_MCLKData_0 = SiS310_MCLKData_0_760; /* 760 */ + } else if(SiS_Pr->ChipType >= SIS_661) { + SiS_Pr->SiS_MCLKData_0 = SiS310_MCLKData_0_660; /* 661/741 */ + } else if(SiS_Pr->ChipType == SIS_330) { + SiS_Pr->SiS_MCLKData_0 = SiS310_MCLKData_0_330; /* 330 */ + } else if(SiS_Pr->ChipType > SIS_315PRO) { + SiS_Pr->SiS_MCLKData_0 = SiS310_MCLKData_0_650; /* 550, 650, 740 */ + } else { + SiS_Pr->SiS_MCLKData_0 = SiS310_MCLKData_0_315; /* 315 */ + } + if(SiS_Pr->ChipType >= SIS_340) { + SiS_Pr->SiS_MCLKData_1 = SiS310_MCLKData_1_340; + } else { + SiS_Pr->SiS_MCLKData_1 = SiS310_MCLKData_1; + } + SiS_Pr->SiS_VCLKData = SiS310_VCLKData; + SiS_Pr->SiS_VBVCLKData = SiS310_VBVCLKData; + + SiS_Pr->SiS_SR15 = SiS310_SR15; + + SiS_Pr->SiS_PanelDelayTbl = SiS310_PanelDelayTbl; + SiS_Pr->SiS_PanelDelayTblLVDS = SiS310_PanelDelayTblLVDS; + + SiS_Pr->SiS_St2LCD1024x768Data = SiS310_St2LCD1024x768Data; + SiS_Pr->SiS_ExtLCD1024x768Data = SiS310_ExtLCD1024x768Data; + SiS_Pr->SiS_St2LCD1280x1024Data = SiS310_St2LCD1280x1024Data; + SiS_Pr->SiS_ExtLCD1280x1024Data = SiS310_ExtLCD1280x1024Data; + + SiS_Pr->SiS_CRT2Part2_1024x768_1 = SiS310_CRT2Part2_1024x768_1; + + SiS_Pr->SiS_CHTVUPALData = SiS310_CHTVUPALData; + SiS_Pr->SiS_CHTVOPALData = SiS310_CHTVOPALData; + SiS_Pr->SiS_CHTVUPALMData = SiS310_CHTVUPALMData; + SiS_Pr->SiS_CHTVOPALMData = SiS310_CHTVOPALMData; + SiS_Pr->SiS_CHTVUPALNData = SiS310_CHTVUPALNData; + SiS_Pr->SiS_CHTVOPALNData = SiS310_CHTVOPALNData; + SiS_Pr->SiS_CHTVSOPALData = SiS310_CHTVSOPALData; + + SiS_Pr->SiS_CHTVCRT1UNTSC = SiS310_CHTVCRT1UNTSC; + SiS_Pr->SiS_CHTVCRT1ONTSC = SiS310_CHTVCRT1ONTSC; + SiS_Pr->SiS_CHTVCRT1UPAL = SiS310_CHTVCRT1UPAL; + SiS_Pr->SiS_CHTVCRT1OPAL = SiS310_CHTVCRT1OPAL; + SiS_Pr->SiS_CHTVCRT1SOPAL = SiS310_CHTVCRT1OPAL; + + SiS_Pr->SiS_CHTVReg_UNTSC = SiS310_CHTVReg_UNTSC; + SiS_Pr->SiS_CHTVReg_ONTSC = SiS310_CHTVReg_ONTSC; + SiS_Pr->SiS_CHTVReg_UPAL = SiS310_CHTVReg_UPAL; + SiS_Pr->SiS_CHTVReg_OPAL = SiS310_CHTVReg_OPAL; + SiS_Pr->SiS_CHTVReg_UPALM = SiS310_CHTVReg_UPALM; + SiS_Pr->SiS_CHTVReg_OPALM = SiS310_CHTVReg_OPALM; + SiS_Pr->SiS_CHTVReg_UPALN = SiS310_CHTVReg_UPALN; + SiS_Pr->SiS_CHTVReg_OPALN = SiS310_CHTVReg_OPALN; + SiS_Pr->SiS_CHTVReg_SOPAL = SiS310_CHTVReg_OPAL; + + SiS_Pr->SiS_CHTVVCLKUNTSC = SiS310_CHTVVCLKUNTSC; + SiS_Pr->SiS_CHTVVCLKONTSC = SiS310_CHTVVCLKONTSC; + SiS_Pr->SiS_CHTVVCLKUPAL = SiS310_CHTVVCLKUPAL; + SiS_Pr->SiS_CHTVVCLKOPAL = SiS310_CHTVVCLKOPAL; + SiS_Pr->SiS_CHTVVCLKUPALM = SiS310_CHTVVCLKUPALM; + SiS_Pr->SiS_CHTVVCLKOPALM = SiS310_CHTVVCLKOPALM; + SiS_Pr->SiS_CHTVVCLKUPALN = SiS310_CHTVVCLKUPALN; + SiS_Pr->SiS_CHTVVCLKOPALN = SiS310_CHTVVCLKOPALN; + SiS_Pr->SiS_CHTVVCLKSOPAL = SiS310_CHTVVCLKOPAL; +} +#endif + +bool +SiSInitPtr(struct SiS_Private *SiS_Pr) +{ + if(SiS_Pr->ChipType < SIS_315H) { +#ifdef CONFIG_FB_SIS_300 + InitTo300Pointer(SiS_Pr); +#else + return false; +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + InitTo310Pointer(SiS_Pr); +#else + return false; +#endif + } + return true; +} + +/*********************************************/ +/* HELPER: Get ModeID */ +/*********************************************/ + +static +unsigned short +SiS_GetModeID(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay, + int Depth, bool FSTN, int LCDwidth, int LCDheight) +{ + unsigned short ModeIndex = 0; + + switch(HDisplay) + { + case 320: + if(VDisplay == 200) ModeIndex = ModeIndex_320x200[Depth]; + else if(VDisplay == 240) { + if((VBFlags & CRT2_LCD) && (FSTN)) + ModeIndex = ModeIndex_320x240_FSTN[Depth]; + else + ModeIndex = ModeIndex_320x240[Depth]; + } + break; + case 400: + if((!(VBFlags & CRT1_LCDA)) || ((LCDwidth >= 800) && (LCDheight >= 600))) { + if(VDisplay == 300) ModeIndex = ModeIndex_400x300[Depth]; + } + break; + case 512: + if((!(VBFlags & CRT1_LCDA)) || ((LCDwidth >= 1024) && (LCDheight >= 768))) { + if(VDisplay == 384) ModeIndex = ModeIndex_512x384[Depth]; + } + break; + case 640: + if(VDisplay == 480) ModeIndex = ModeIndex_640x480[Depth]; + else if(VDisplay == 400) ModeIndex = ModeIndex_640x400[Depth]; + break; + case 720: + if(VDisplay == 480) ModeIndex = ModeIndex_720x480[Depth]; + else if(VDisplay == 576) ModeIndex = ModeIndex_720x576[Depth]; + break; + case 768: + if(VDisplay == 576) ModeIndex = ModeIndex_768x576[Depth]; + break; + case 800: + if(VDisplay == 600) ModeIndex = ModeIndex_800x600[Depth]; + else if(VDisplay == 480) ModeIndex = ModeIndex_800x480[Depth]; + break; + case 848: + if(VDisplay == 480) ModeIndex = ModeIndex_848x480[Depth]; + break; + case 856: + if(VDisplay == 480) ModeIndex = ModeIndex_856x480[Depth]; + break; + case 960: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 540) ModeIndex = ModeIndex_960x540[Depth]; + else if(VDisplay == 600) ModeIndex = ModeIndex_960x600[Depth]; + } + break; + case 1024: + if(VDisplay == 576) ModeIndex = ModeIndex_1024x576[Depth]; + else if(VDisplay == 768) ModeIndex = ModeIndex_1024x768[Depth]; + else if(VGAEngine == SIS_300_VGA) { + if(VDisplay == 600) ModeIndex = ModeIndex_1024x600[Depth]; + } + break; + case 1152: + if(VDisplay == 864) ModeIndex = ModeIndex_1152x864[Depth]; + if(VGAEngine == SIS_300_VGA) { + if(VDisplay == 768) ModeIndex = ModeIndex_1152x768[Depth]; + } + break; + case 1280: + switch(VDisplay) { + case 720: + ModeIndex = ModeIndex_1280x720[Depth]; + break; + case 768: + if(VGAEngine == SIS_300_VGA) { + ModeIndex = ModeIndex_300_1280x768[Depth]; + } else { + ModeIndex = ModeIndex_310_1280x768[Depth]; + } + break; + case 800: + if(VGAEngine == SIS_315_VGA) { + ModeIndex = ModeIndex_1280x800[Depth]; + } + break; + case 854: + if(VGAEngine == SIS_315_VGA) { + ModeIndex = ModeIndex_1280x854[Depth]; + } + break; + case 960: + ModeIndex = ModeIndex_1280x960[Depth]; + break; + case 1024: + ModeIndex = ModeIndex_1280x1024[Depth]; + break; + } + break; + case 1360: + if(VDisplay == 768) ModeIndex = ModeIndex_1360x768[Depth]; + if(VGAEngine == SIS_300_VGA) { + if(VDisplay == 1024) ModeIndex = ModeIndex_300_1360x1024[Depth]; + } + break; + case 1400: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 1050) { + ModeIndex = ModeIndex_1400x1050[Depth]; + } + } + break; + case 1600: + if(VDisplay == 1200) ModeIndex = ModeIndex_1600x1200[Depth]; + break; + case 1680: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 1050) ModeIndex = ModeIndex_1680x1050[Depth]; + } + break; + case 1920: + if(VDisplay == 1440) ModeIndex = ModeIndex_1920x1440[Depth]; + else if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 1080) ModeIndex = ModeIndex_1920x1080[Depth]; + } + break; + case 2048: + if(VDisplay == 1536) { + if(VGAEngine == SIS_300_VGA) { + ModeIndex = ModeIndex_300_2048x1536[Depth]; + } else { + ModeIndex = ModeIndex_310_2048x1536[Depth]; + } + } + break; + } + + return ModeIndex; +} + +unsigned short +SiS_GetModeID_LCD(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay, + int Depth, bool FSTN, unsigned short CustomT, int LCDwidth, int LCDheight, + unsigned int VBFlags2) +{ + unsigned short ModeIndex = 0; + + if(VBFlags2 & (VB2_LVDS | VB2_30xBDH)) { + + switch(HDisplay) + { + case 320: + if((CustomT != CUT_PANEL848) && (CustomT != CUT_PANEL856)) { + if(VDisplay == 200) { + if(!FSTN) ModeIndex = ModeIndex_320x200[Depth]; + } else if(VDisplay == 240) { + if(!FSTN) ModeIndex = ModeIndex_320x240[Depth]; + else if(VGAEngine == SIS_315_VGA) { + ModeIndex = ModeIndex_320x240_FSTN[Depth]; + } + } + } + break; + case 400: + if((CustomT != CUT_PANEL848) && (CustomT != CUT_PANEL856)) { + if(!((VGAEngine == SIS_300_VGA) && (VBFlags2 & VB2_TRUMPION))) { + if(VDisplay == 300) ModeIndex = ModeIndex_400x300[Depth]; + } + } + break; + case 512: + if((CustomT != CUT_PANEL848) && (CustomT != CUT_PANEL856)) { + if(!((VGAEngine == SIS_300_VGA) && (VBFlags2 & VB2_TRUMPION))) { + if(LCDwidth >= 1024 && LCDwidth != 1152 && LCDheight >= 768) { + if(VDisplay == 384) { + ModeIndex = ModeIndex_512x384[Depth]; + } + } + } + } + break; + case 640: + if(VDisplay == 480) ModeIndex = ModeIndex_640x480[Depth]; + else if(VDisplay == 400) { + if((CustomT != CUT_PANEL848) && (CustomT != CUT_PANEL856)) + ModeIndex = ModeIndex_640x400[Depth]; + } + break; + case 800: + if(VDisplay == 600) ModeIndex = ModeIndex_800x600[Depth]; + break; + case 848: + if(CustomT == CUT_PANEL848) { + if(VDisplay == 480) ModeIndex = ModeIndex_848x480[Depth]; + } + break; + case 856: + if(CustomT == CUT_PANEL856) { + if(VDisplay == 480) ModeIndex = ModeIndex_856x480[Depth]; + } + break; + case 1024: + if(VDisplay == 768) ModeIndex = ModeIndex_1024x768[Depth]; + else if(VGAEngine == SIS_300_VGA) { + if((VDisplay == 600) && (LCDheight == 600)) { + ModeIndex = ModeIndex_1024x600[Depth]; + } + } + break; + case 1152: + if(VGAEngine == SIS_300_VGA) { + if((VDisplay == 768) && (LCDheight == 768)) { + ModeIndex = ModeIndex_1152x768[Depth]; + } + } + break; + case 1280: + if(VDisplay == 1024) ModeIndex = ModeIndex_1280x1024[Depth]; + else if(VGAEngine == SIS_315_VGA) { + if((VDisplay == 768) && (LCDheight == 768)) { + ModeIndex = ModeIndex_310_1280x768[Depth]; + } + } + break; + case 1360: + if(VGAEngine == SIS_300_VGA) { + if(CustomT == CUT_BARCO1366) { + if(VDisplay == 1024) ModeIndex = ModeIndex_300_1360x1024[Depth]; + } + } + if(CustomT == CUT_PANEL848) { + if(VDisplay == 768) ModeIndex = ModeIndex_1360x768[Depth]; + } + break; + case 1400: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 1050) ModeIndex = ModeIndex_1400x1050[Depth]; + } + break; + case 1600: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 1200) ModeIndex = ModeIndex_1600x1200[Depth]; + } + break; + } + + } else if(VBFlags2 & VB2_SISBRIDGE) { + + switch(HDisplay) + { + case 320: + if(VDisplay == 200) ModeIndex = ModeIndex_320x200[Depth]; + else if(VDisplay == 240) ModeIndex = ModeIndex_320x240[Depth]; + break; + case 400: + if(LCDwidth >= 800 && LCDheight >= 600) { + if(VDisplay == 300) ModeIndex = ModeIndex_400x300[Depth]; + } + break; + case 512: + if(LCDwidth >= 1024 && LCDheight >= 768 && LCDwidth != 1152) { + if(VDisplay == 384) ModeIndex = ModeIndex_512x384[Depth]; + } + break; + case 640: + if(VDisplay == 480) ModeIndex = ModeIndex_640x480[Depth]; + else if(VDisplay == 400) ModeIndex = ModeIndex_640x400[Depth]; + break; + case 720: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 480) ModeIndex = ModeIndex_720x480[Depth]; + else if(VDisplay == 576) ModeIndex = ModeIndex_720x576[Depth]; + } + break; + case 768: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 576) ModeIndex = ModeIndex_768x576[Depth]; + } + break; + case 800: + if(VDisplay == 600) ModeIndex = ModeIndex_800x600[Depth]; + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 480) ModeIndex = ModeIndex_800x480[Depth]; + } + break; + case 848: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 480) ModeIndex = ModeIndex_848x480[Depth]; + } + break; + case 856: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 480) ModeIndex = ModeIndex_856x480[Depth]; + } + break; + case 960: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 540) ModeIndex = ModeIndex_960x540[Depth]; + else if(VDisplay == 600) ModeIndex = ModeIndex_960x600[Depth]; + } + break; + case 1024: + if(VDisplay == 768) ModeIndex = ModeIndex_1024x768[Depth]; + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 576) ModeIndex = ModeIndex_1024x576[Depth]; + } + break; + case 1152: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 864) ModeIndex = ModeIndex_1152x864[Depth]; + } + break; + case 1280: + switch(VDisplay) { + case 720: + ModeIndex = ModeIndex_1280x720[Depth]; + break; + case 768: + if(VGAEngine == SIS_300_VGA) { + ModeIndex = ModeIndex_300_1280x768[Depth]; + } else { + ModeIndex = ModeIndex_310_1280x768[Depth]; + } + break; + case 800: + if(VGAEngine == SIS_315_VGA) { + ModeIndex = ModeIndex_1280x800[Depth]; + } + break; + case 854: + if(VGAEngine == SIS_315_VGA) { + ModeIndex = ModeIndex_1280x854[Depth]; + } + break; + case 960: + ModeIndex = ModeIndex_1280x960[Depth]; + break; + case 1024: + ModeIndex = ModeIndex_1280x1024[Depth]; + break; + } + break; + case 1360: + if(VGAEngine == SIS_315_VGA) { /* OVER1280 only? */ + if(VDisplay == 768) ModeIndex = ModeIndex_1360x768[Depth]; + } + break; + case 1400: + if(VGAEngine == SIS_315_VGA) { + if(VBFlags2 & VB2_LCDOVER1280BRIDGE) { + if(VDisplay == 1050) ModeIndex = ModeIndex_1400x1050[Depth]; + } + } + break; + case 1600: + if(VGAEngine == SIS_315_VGA) { + if(VBFlags2 & VB2_LCDOVER1280BRIDGE) { + if(VDisplay == 1200) ModeIndex = ModeIndex_1600x1200[Depth]; + } + } + break; +#ifndef VB_FORBID_CRT2LCD_OVER_1600 + case 1680: + if(VGAEngine == SIS_315_VGA) { + if(VBFlags2 & VB2_LCDOVER1280BRIDGE) { + if(VDisplay == 1050) ModeIndex = ModeIndex_1680x1050[Depth]; + } + } + break; + case 1920: + if(VGAEngine == SIS_315_VGA) { + if(VBFlags2 & VB2_LCDOVER1600BRIDGE) { + if(VDisplay == 1440) ModeIndex = ModeIndex_1920x1440[Depth]; + } + } + break; + case 2048: + if(VGAEngine == SIS_315_VGA) { + if(VBFlags2 & VB2_LCDOVER1600BRIDGE) { + if(VDisplay == 1536) ModeIndex = ModeIndex_310_2048x1536[Depth]; + } + } + break; +#endif + } + } + + return ModeIndex; +} + +unsigned short +SiS_GetModeID_TV(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay, int Depth, + unsigned int VBFlags2) +{ + unsigned short ModeIndex = 0; + + if(VBFlags2 & VB2_CHRONTEL) { + + switch(HDisplay) + { + case 512: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 384) ModeIndex = ModeIndex_512x384[Depth]; + } + break; + case 640: + if(VDisplay == 480) ModeIndex = ModeIndex_640x480[Depth]; + else if(VDisplay == 400) ModeIndex = ModeIndex_640x400[Depth]; + break; + case 800: + if(VDisplay == 600) ModeIndex = ModeIndex_800x600[Depth]; + break; + case 1024: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 768) ModeIndex = ModeIndex_1024x768[Depth]; + } + break; + } + + } else if(VBFlags2 & VB2_SISTVBRIDGE) { + + switch(HDisplay) + { + case 320: + if(VDisplay == 200) ModeIndex = ModeIndex_320x200[Depth]; + else if(VDisplay == 240) ModeIndex = ModeIndex_320x240[Depth]; + break; + case 400: + if(VDisplay == 300) ModeIndex = ModeIndex_400x300[Depth]; + break; + case 512: + if( ((VBFlags & TV_YPBPR) && (VBFlags & (TV_YPBPR750P | TV_YPBPR1080I))) || + (VBFlags & TV_HIVISION) || + ((!(VBFlags & (TV_YPBPR | TV_PALM))) && (VBFlags & TV_PAL)) ) { + if(VDisplay == 384) ModeIndex = ModeIndex_512x384[Depth]; + } + break; + case 640: + if(VDisplay == 480) ModeIndex = ModeIndex_640x480[Depth]; + else if(VDisplay == 400) ModeIndex = ModeIndex_640x400[Depth]; + break; + case 720: + if((!(VBFlags & TV_HIVISION)) && (!((VBFlags & TV_YPBPR) && (VBFlags & TV_YPBPR1080I)))) { + if(VDisplay == 480) { + ModeIndex = ModeIndex_720x480[Depth]; + } else if(VDisplay == 576) { + if( ((VBFlags & TV_YPBPR) && (VBFlags & TV_YPBPR750P)) || + ((!(VBFlags & (TV_YPBPR | TV_PALM))) && (VBFlags & TV_PAL)) ) + ModeIndex = ModeIndex_720x576[Depth]; + } + } + break; + case 768: + if((!(VBFlags & TV_HIVISION)) && (!((VBFlags & TV_YPBPR) && (VBFlags & TV_YPBPR1080I)))) { + if( ((VBFlags & TV_YPBPR) && (VBFlags & TV_YPBPR750P)) || + ((!(VBFlags & (TV_YPBPR | TV_PALM))) && (VBFlags & TV_PAL)) ) { + if(VDisplay == 576) ModeIndex = ModeIndex_768x576[Depth]; + } + } + break; + case 800: + if(VDisplay == 600) ModeIndex = ModeIndex_800x600[Depth]; + else if(VDisplay == 480) { + if(!((VBFlags & TV_YPBPR) && (VBFlags & TV_YPBPR750P))) { + ModeIndex = ModeIndex_800x480[Depth]; + } + } + break; + case 960: + if(VGAEngine == SIS_315_VGA) { + if(VDisplay == 600) { + if((VBFlags & TV_HIVISION) || ((VBFlags & TV_YPBPR) && (VBFlags & TV_YPBPR1080I))) { + ModeIndex = ModeIndex_960x600[Depth]; + } + } + } + break; + case 1024: + if(VDisplay == 768) { + if(VBFlags2 & VB2_30xBLV) { + ModeIndex = ModeIndex_1024x768[Depth]; + } + } else if(VDisplay == 576) { + if( (VBFlags & TV_HIVISION) || + ((VBFlags & TV_YPBPR) && (VBFlags & TV_YPBPR1080I)) || + ((VBFlags2 & VB2_30xBLV) && + ((!(VBFlags & (TV_YPBPR | TV_PALM))) && (VBFlags & TV_PAL))) ) { + ModeIndex = ModeIndex_1024x576[Depth]; + } + } + break; + case 1280: + if(VDisplay == 720) { + if((VBFlags & TV_HIVISION) || + ((VBFlags & TV_YPBPR) && (VBFlags & (TV_YPBPR1080I | TV_YPBPR750P)))) { + ModeIndex = ModeIndex_1280x720[Depth]; + } + } else if(VDisplay == 1024) { + if((VBFlags & TV_HIVISION) || + ((VBFlags & TV_YPBPR) && (VBFlags & TV_YPBPR1080I))) { + ModeIndex = ModeIndex_1280x1024[Depth]; + } + } + break; + } + } + return ModeIndex; +} + +unsigned short +SiS_GetModeID_VGA2(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay, int Depth, + unsigned int VBFlags2) +{ + if(!(VBFlags2 & VB2_SISVGA2BRIDGE)) return 0; + + if(HDisplay >= 1920) return 0; + + switch(HDisplay) + { + case 1600: + if(VDisplay == 1200) { + if(VGAEngine != SIS_315_VGA) return 0; + if(!(VBFlags2 & VB2_30xB)) return 0; + } + break; + case 1680: + if(VDisplay == 1050) { + if(VGAEngine != SIS_315_VGA) return 0; + if(!(VBFlags2 & VB2_30xB)) return 0; + } + break; + } + + return SiS_GetModeID(VGAEngine, 0, HDisplay, VDisplay, Depth, false, 0, 0); +} + + +/*********************************************/ +/* HELPER: SetReg, GetReg */ +/*********************************************/ + +void +SiS_SetReg(SISIOADDRESS port, u8 index, u8 data) +{ + outb(index, port); + outb(data, port + 1); +} + +void +SiS_SetRegByte(SISIOADDRESS port, u8 data) +{ + outb(data, port); +} + +void +SiS_SetRegShort(SISIOADDRESS port, u16 data) +{ + outw(data, port); +} + +void +SiS_SetRegLong(SISIOADDRESS port, u32 data) +{ + outl(data, port); +} + +u8 +SiS_GetReg(SISIOADDRESS port, u8 index) +{ + outb(index, port); + return inb(port + 1); +} + +u8 +SiS_GetRegByte(SISIOADDRESS port) +{ + return inb(port); +} + +u16 +SiS_GetRegShort(SISIOADDRESS port) +{ + return inw(port); +} + +u32 +SiS_GetRegLong(SISIOADDRESS port) +{ + return inl(port); +} + +void +SiS_SetRegANDOR(SISIOADDRESS Port, u8 Index, u8 DataAND, u8 DataOR) +{ + u8 temp; + + temp = SiS_GetReg(Port, Index); + temp = (temp & (DataAND)) | DataOR; + SiS_SetReg(Port, Index, temp); +} + +void +SiS_SetRegAND(SISIOADDRESS Port, u8 Index, u8 DataAND) +{ + u8 temp; + + temp = SiS_GetReg(Port, Index); + temp &= DataAND; + SiS_SetReg(Port, Index, temp); +} + +void +SiS_SetRegOR(SISIOADDRESS Port, u8 Index, u8 DataOR) +{ + u8 temp; + + temp = SiS_GetReg(Port, Index); + temp |= DataOR; + SiS_SetReg(Port, Index, temp); +} + +/*********************************************/ +/* HELPER: DisplayOn, DisplayOff */ +/*********************************************/ + +void +SiS_DisplayOn(struct SiS_Private *SiS_Pr) +{ + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x01,0xDF); +} + +void +SiS_DisplayOff(struct SiS_Private *SiS_Pr) +{ + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x01,0x20); +} + + +/*********************************************/ +/* HELPER: Init Port Addresses */ +/*********************************************/ + +void +SiSRegInit(struct SiS_Private *SiS_Pr, SISIOADDRESS BaseAddr) +{ + SiS_Pr->SiS_P3c4 = BaseAddr + 0x14; + SiS_Pr->SiS_P3d4 = BaseAddr + 0x24; + SiS_Pr->SiS_P3c0 = BaseAddr + 0x10; + SiS_Pr->SiS_P3ce = BaseAddr + 0x1e; + SiS_Pr->SiS_P3c2 = BaseAddr + 0x12; + SiS_Pr->SiS_P3ca = BaseAddr + 0x1a; + SiS_Pr->SiS_P3c6 = BaseAddr + 0x16; + SiS_Pr->SiS_P3c7 = BaseAddr + 0x17; + SiS_Pr->SiS_P3c8 = BaseAddr + 0x18; + SiS_Pr->SiS_P3c9 = BaseAddr + 0x19; + SiS_Pr->SiS_P3cb = BaseAddr + 0x1b; + SiS_Pr->SiS_P3cc = BaseAddr + 0x1c; + SiS_Pr->SiS_P3cd = BaseAddr + 0x1d; + SiS_Pr->SiS_P3da = BaseAddr + 0x2a; + SiS_Pr->SiS_Part1Port = BaseAddr + SIS_CRT2_PORT_04; + SiS_Pr->SiS_Part2Port = BaseAddr + SIS_CRT2_PORT_10; + SiS_Pr->SiS_Part3Port = BaseAddr + SIS_CRT2_PORT_12; + SiS_Pr->SiS_Part4Port = BaseAddr + SIS_CRT2_PORT_14; + SiS_Pr->SiS_Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2; + SiS_Pr->SiS_DDC_Port = BaseAddr + 0x14; + SiS_Pr->SiS_VidCapt = BaseAddr + SIS_VIDEO_CAPTURE; + SiS_Pr->SiS_VidPlay = BaseAddr + SIS_VIDEO_PLAYBACK; +} + +/*********************************************/ +/* HELPER: GetSysFlags */ +/*********************************************/ + +static void +SiS_GetSysFlags(struct SiS_Private *SiS_Pr) +{ + unsigned char cr5f, temp1, temp2; + + /* 661 and newer: NEVER write non-zero to SR11[7:4] */ + /* (SR11 is used for DDC and in enable/disablebridge) */ + SiS_Pr->SiS_SensibleSR11 = false; + SiS_Pr->SiS_MyCR63 = 0x63; + if(SiS_Pr->ChipType >= SIS_330) { + SiS_Pr->SiS_MyCR63 = 0x53; + if(SiS_Pr->ChipType >= SIS_661) { + SiS_Pr->SiS_SensibleSR11 = true; + } + } + + /* You should use the macros, not these flags directly */ + + SiS_Pr->SiS_SysFlags = 0; + if(SiS_Pr->ChipType == SIS_650) { + cr5f = SiS_GetReg(SiS_Pr->SiS_P3d4,0x5f) & 0xf0; + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x5c,0x07); + temp1 = SiS_GetReg(SiS_Pr->SiS_P3d4,0x5c) & 0xf8; + SiS_SetRegOR(SiS_Pr->SiS_P3d4,0x5c,0xf8); + temp2 = SiS_GetReg(SiS_Pr->SiS_P3d4,0x5c) & 0xf8; + if((!temp1) || (temp2)) { + switch(cr5f) { + case 0x80: + case 0x90: + case 0xc0: + SiS_Pr->SiS_SysFlags |= SF_IsM650; + break; + case 0xa0: + case 0xb0: + case 0xe0: + SiS_Pr->SiS_SysFlags |= SF_Is651; + break; + } + } else { + switch(cr5f) { + case 0x90: + temp1 = SiS_GetReg(SiS_Pr->SiS_P3d4,0x5c) & 0xf8; + switch(temp1) { + case 0x00: SiS_Pr->SiS_SysFlags |= SF_IsM652; break; + case 0x40: SiS_Pr->SiS_SysFlags |= SF_IsM653; break; + default: SiS_Pr->SiS_SysFlags |= SF_IsM650; break; + } + break; + case 0xb0: + SiS_Pr->SiS_SysFlags |= SF_Is652; + break; + default: + SiS_Pr->SiS_SysFlags |= SF_IsM650; + break; + } + } + } + + if(SiS_Pr->ChipType >= SIS_760 && SiS_Pr->ChipType <= SIS_761) { + if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x78) & 0x30) { + SiS_Pr->SiS_SysFlags |= SF_760LFB; + } + if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x79) & 0xf0) { + SiS_Pr->SiS_SysFlags |= SF_760UMA; + } + } +} + +/*********************************************/ +/* HELPER: Init PCI & Engines */ +/*********************************************/ + +static void +SiSInitPCIetc(struct SiS_Private *SiS_Pr) +{ + switch(SiS_Pr->ChipType) { +#ifdef CONFIG_FB_SIS_300 + case SIS_300: + case SIS_540: + case SIS_630: + case SIS_730: + /* Set - PCI LINEAR ADDRESSING ENABLE (0x80) + * - RELOCATED VGA IO ENABLED (0x20) + * - MMIO ENABLED (0x01) + * Leave other bits untouched. + */ + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x20,0xa1); + /* - Enable 2D (0x40) + * - Enable 3D (0x02) + * - Enable 3D Vertex command fetch (0x10) ? + * - Enable 3D command parser (0x08) ? + */ + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x1E,0x5A); + break; +#endif +#ifdef CONFIG_FB_SIS_315 + case SIS_315H: + case SIS_315: + case SIS_315PRO: + case SIS_650: + case SIS_740: + case SIS_330: + case SIS_661: + case SIS_741: + case SIS_660: + case SIS_760: + case SIS_761: + case SIS_340: + case XGI_40: + /* See above */ + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x20,0xa1); + /* - Enable 3D G/L transformation engine (0x80) + * - Enable 2D (0x40) + * - Enable 3D vertex command fetch (0x10) + * - Enable 3D command parser (0x08) + * - Enable 3D (0x02) + */ + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x1E,0xDA); + break; + case XGI_20: + case SIS_550: + /* See above */ + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x20,0xa1); + /* No 3D engine ! */ + /* - Enable 2D (0x40) + * - disable 3D + */ + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x1E,0x60,0x40); + break; +#endif + default: + break; + } +} + +/*********************************************/ +/* HELPER: SetLVDSetc */ +/*********************************************/ + +static +void +SiSSetLVDSetc(struct SiS_Private *SiS_Pr) +{ + unsigned short temp; + + SiS_Pr->SiS_IF_DEF_LVDS = 0; + SiS_Pr->SiS_IF_DEF_TRUMPION = 0; + SiS_Pr->SiS_IF_DEF_CH70xx = 0; + SiS_Pr->SiS_IF_DEF_CONEX = 0; + + SiS_Pr->SiS_ChrontelInit = 0; + + if(SiS_Pr->ChipType == XGI_20) return; + + /* Check for SiS30x first */ + temp = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x00); + if((temp == 1) || (temp == 2)) return; + + switch(SiS_Pr->ChipType) { +#ifdef CONFIG_FB_SIS_300 + case SIS_540: + case SIS_630: + case SIS_730: + temp = (SiS_GetReg(SiS_Pr->SiS_P3d4,0x37) & 0x0e) >> 1; + if((temp >= 2) && (temp <= 5)) SiS_Pr->SiS_IF_DEF_LVDS = 1; + if(temp == 3) SiS_Pr->SiS_IF_DEF_TRUMPION = 1; + if((temp == 4) || (temp == 5)) { + /* Save power status (and error check) - UNUSED */ + SiS_Pr->SiS_Backup70xx = SiS_GetCH700x(SiS_Pr, 0x0e); + SiS_Pr->SiS_IF_DEF_CH70xx = 1; + } + break; +#endif +#ifdef CONFIG_FB_SIS_315 + case SIS_550: + case SIS_650: + case SIS_740: + case SIS_330: + temp = (SiS_GetReg(SiS_Pr->SiS_P3d4,0x37) & 0x0e) >> 1; + if((temp >= 2) && (temp <= 3)) SiS_Pr->SiS_IF_DEF_LVDS = 1; + if(temp == 3) SiS_Pr->SiS_IF_DEF_CH70xx = 2; + break; + case SIS_661: + case SIS_741: + case SIS_660: + case SIS_760: + case SIS_761: + case SIS_340: + case XGI_20: + case XGI_40: + temp = (SiS_GetReg(SiS_Pr->SiS_P3d4,0x38) & 0xe0) >> 5; + if((temp >= 2) && (temp <= 3)) SiS_Pr->SiS_IF_DEF_LVDS = 1; + if(temp == 3) SiS_Pr->SiS_IF_DEF_CH70xx = 2; + if(temp == 4) SiS_Pr->SiS_IF_DEF_CONEX = 1; /* Not yet supported */ + break; +#endif + default: + break; + } +} + +/*********************************************/ +/* HELPER: Enable DSTN/FSTN */ +/*********************************************/ + +void +SiS_SetEnableDstn(struct SiS_Private *SiS_Pr, int enable) +{ + SiS_Pr->SiS_IF_DEF_DSTN = enable ? 1 : 0; +} + +void +SiS_SetEnableFstn(struct SiS_Private *SiS_Pr, int enable) +{ + SiS_Pr->SiS_IF_DEF_FSTN = enable ? 1 : 0; +} + +/*********************************************/ +/* HELPER: Get modeflag */ +/*********************************************/ + +unsigned short +SiS_GetModeFlag(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex) +{ + if(SiS_Pr->UseCustomMode) { + return SiS_Pr->CModeFlag; + } else if(ModeNo <= 0x13) { + return SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag; + } else { + return SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag; + } +} + +/*********************************************/ +/* HELPER: Determine ROM usage */ +/*********************************************/ + +bool +SiSDetermineROMLayout661(struct SiS_Private *SiS_Pr) +{ + unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; + unsigned short romversoffs, romvmaj = 1, romvmin = 0; + + if(SiS_Pr->ChipType >= XGI_20) { + /* XGI ROMs don't qualify */ + return false; + } else if(SiS_Pr->ChipType >= SIS_761) { + /* I very much assume 761, 340 and newer will use new layout */ + return true; + } else if(SiS_Pr->ChipType >= SIS_661) { + if((ROMAddr[0x1a] == 'N') && + (ROMAddr[0x1b] == 'e') && + (ROMAddr[0x1c] == 'w') && + (ROMAddr[0x1d] == 'V')) { + return true; + } + romversoffs = ROMAddr[0x16] | (ROMAddr[0x17] << 8); + if(romversoffs) { + if((ROMAddr[romversoffs+1] == '.') || (ROMAddr[romversoffs+4] == '.')) { + romvmaj = ROMAddr[romversoffs] - '0'; + romvmin = ((ROMAddr[romversoffs+2] -'0') * 10) + (ROMAddr[romversoffs+3] - '0'); + } + } + if((romvmaj != 0) || (romvmin >= 92)) { + return true; + } + } else if(IS_SIS650740) { + if((ROMAddr[0x1a] == 'N') && + (ROMAddr[0x1b] == 'e') && + (ROMAddr[0x1c] == 'w') && + (ROMAddr[0x1d] == 'V')) { + return true; + } + } + return false; +} + +static void +SiSDetermineROMUsage(struct SiS_Private *SiS_Pr) +{ + unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; + unsigned short romptr = 0; + + SiS_Pr->SiS_UseROM = false; + SiS_Pr->SiS_ROMNew = false; + SiS_Pr->SiS_PWDOffset = 0; + + if(SiS_Pr->ChipType >= XGI_20) return; + + if((ROMAddr) && (SiS_Pr->UseROM)) { + if(SiS_Pr->ChipType == SIS_300) { + /* 300: We check if the code starts below 0x220 by + * checking the jmp instruction at the beginning + * of the BIOS image. + */ + if((ROMAddr[3] == 0xe9) && ((ROMAddr[5] << 8) | ROMAddr[4]) > 0x21a) + SiS_Pr->SiS_UseROM = true; + } else if(SiS_Pr->ChipType < SIS_315H) { + /* Sony's VAIO BIOS 1.09 follows the standard, so perhaps + * the others do as well + */ + SiS_Pr->SiS_UseROM = true; + } else { + /* 315/330 series stick to the standard(s) */ + SiS_Pr->SiS_UseROM = true; + if((SiS_Pr->SiS_ROMNew = SiSDetermineROMLayout661(SiS_Pr))) { + SiS_Pr->SiS_EMIOffset = 14; + SiS_Pr->SiS_PWDOffset = 17; + SiS_Pr->SiS661LCD2TableSize = 36; + /* Find out about LCD data table entry size */ + if((romptr = SISGETROMW(0x0102))) { + if(ROMAddr[romptr + (32 * 16)] == 0xff) + SiS_Pr->SiS661LCD2TableSize = 32; + else if(ROMAddr[romptr + (34 * 16)] == 0xff) + SiS_Pr->SiS661LCD2TableSize = 34; + else if(ROMAddr[romptr + (36 * 16)] == 0xff) /* 0.94, 2.05.00+ */ + SiS_Pr->SiS661LCD2TableSize = 36; + else if( (ROMAddr[romptr + (38 * 16)] == 0xff) || /* 2.00.00 - 2.02.00 */ + (ROMAddr[0x6F] & 0x01) ) { /* 2.03.00 - <2.05.00 */ + SiS_Pr->SiS661LCD2TableSize = 38; /* UMC data layout abandoned at 2.05.00 */ + SiS_Pr->SiS_EMIOffset = 16; + SiS_Pr->SiS_PWDOffset = 19; + } + } + } + } + } +} + +/*********************************************/ +/* HELPER: SET SEGMENT REGISTERS */ +/*********************************************/ + +static void +SiS_SetSegRegLower(struct SiS_Private *SiS_Pr, unsigned short value) +{ + unsigned short temp; + + value &= 0x00ff; + temp = SiS_GetRegByte(SiS_Pr->SiS_P3cb) & 0xf0; + temp |= (value >> 4); + SiS_SetRegByte(SiS_Pr->SiS_P3cb, temp); + temp = SiS_GetRegByte(SiS_Pr->SiS_P3cd) & 0xf0; + temp |= (value & 0x0f); + SiS_SetRegByte(SiS_Pr->SiS_P3cd, temp); +} + +static void +SiS_SetSegRegUpper(struct SiS_Private *SiS_Pr, unsigned short value) +{ + unsigned short temp; + + value &= 0x00ff; + temp = SiS_GetRegByte(SiS_Pr->SiS_P3cb) & 0x0f; + temp |= (value & 0xf0); + SiS_SetRegByte(SiS_Pr->SiS_P3cb, temp); + temp = SiS_GetRegByte(SiS_Pr->SiS_P3cd) & 0x0f; + temp |= (value << 4); + SiS_SetRegByte(SiS_Pr->SiS_P3cd, temp); +} + +static void +SiS_SetSegmentReg(struct SiS_Private *SiS_Pr, unsigned short value) +{ + SiS_SetSegRegLower(SiS_Pr, value); + SiS_SetSegRegUpper(SiS_Pr, value); +} + +static void +SiS_ResetSegmentReg(struct SiS_Private *SiS_Pr) +{ + SiS_SetSegmentReg(SiS_Pr, 0); +} + +static void +SiS_SetSegmentRegOver(struct SiS_Private *SiS_Pr, unsigned short value) +{ + unsigned short temp = value >> 8; + + temp &= 0x07; + temp |= (temp << 4); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x1d,temp); + SiS_SetSegmentReg(SiS_Pr, value); +} + +static void +SiS_ResetSegmentRegOver(struct SiS_Private *SiS_Pr) +{ + SiS_SetSegmentRegOver(SiS_Pr, 0); +} + +static void +SiS_ResetSegmentRegisters(struct SiS_Private *SiS_Pr) +{ + if((IS_SIS65x) || (SiS_Pr->ChipType >= SIS_661)) { + SiS_ResetSegmentReg(SiS_Pr); + SiS_ResetSegmentRegOver(SiS_Pr); + } +} + +/*********************************************/ +/* HELPER: GetVBType */ +/*********************************************/ + +static +void +SiS_GetVBType(struct SiS_Private *SiS_Pr) +{ + unsigned short flag = 0, rev = 0, nolcd = 0; + unsigned short p4_0f, p4_25, p4_27; + + SiS_Pr->SiS_VBType = 0; + + if((SiS_Pr->SiS_IF_DEF_LVDS) || (SiS_Pr->SiS_IF_DEF_CONEX)) + return; + + if(SiS_Pr->ChipType == XGI_20) + return; + + flag = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x00); + + if(flag > 3) + return; + + rev = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x01); + + if(flag >= 2) { + SiS_Pr->SiS_VBType = VB_SIS302B; + } else if(flag == 1) { + if(rev >= 0xC0) { + SiS_Pr->SiS_VBType = VB_SIS301C; + } else if(rev >= 0xB0) { + SiS_Pr->SiS_VBType = VB_SIS301B; + /* Check if 30xB DH version (no LCD support, use Panel Link instead) */ + nolcd = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x23); + if(!(nolcd & 0x02)) SiS_Pr->SiS_VBType |= VB_NoLCD; + } else { + SiS_Pr->SiS_VBType = VB_SIS301; + } + } + if(SiS_Pr->SiS_VBType & (VB_SIS301B | VB_SIS301C | VB_SIS302B)) { + if(rev >= 0xE0) { + flag = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x39); + if(flag == 0xff) SiS_Pr->SiS_VBType = VB_SIS302LV; + else SiS_Pr->SiS_VBType = VB_SIS301C; /* VB_SIS302ELV; */ + } else if(rev >= 0xD0) { + SiS_Pr->SiS_VBType = VB_SIS301LV; + } + } + if(SiS_Pr->SiS_VBType & (VB_SIS301C | VB_SIS301LV | VB_SIS302LV | VB_SIS302ELV)) { + p4_0f = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x0f); + p4_25 = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x25); + p4_27 = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x27); + SiS_SetRegAND(SiS_Pr->SiS_Part4Port,0x0f,0x7f); + SiS_SetRegOR(SiS_Pr->SiS_Part4Port,0x25,0x08); + SiS_SetRegAND(SiS_Pr->SiS_Part4Port,0x27,0xfd); + if(SiS_GetReg(SiS_Pr->SiS_Part4Port,0x26) & 0x08) { + SiS_Pr->SiS_VBType |= VB_UMC; + } + SiS_SetReg(SiS_Pr->SiS_Part4Port,0x27,p4_27); + SiS_SetReg(SiS_Pr->SiS_Part4Port,0x25,p4_25); + SiS_SetReg(SiS_Pr->SiS_Part4Port,0x0f,p4_0f); + } +} + +/*********************************************/ +/* HELPER: Check RAM size */ +/*********************************************/ + +static bool +SiS_CheckMemorySize(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex) +{ + unsigned short AdapterMemSize = SiS_Pr->VideoMemorySize / (1024*1024); + unsigned short modeflag = SiS_GetModeFlag(SiS_Pr, ModeNo, ModeIdIndex); + unsigned short memorysize = ((modeflag & MemoryInfoFlag) >> MemorySizeShift) + 1; + + if(!AdapterMemSize) return true; + + if(AdapterMemSize < memorysize) return false; + return true; +} + +/*********************************************/ +/* HELPER: Get DRAM type */ +/*********************************************/ + +#ifdef CONFIG_FB_SIS_315 +static unsigned char +SiS_Get310DRAMType(struct SiS_Private *SiS_Pr) +{ + unsigned char data; + + if((*SiS_Pr->pSiS_SoftSetting) & SoftDRAMType) { + data = (*SiS_Pr->pSiS_SoftSetting) & 0x03; + } else { + if(SiS_Pr->ChipType >= XGI_20) { + /* Do I need this? SR17 seems to be zero anyway... */ + data = 0; + } else if(SiS_Pr->ChipType >= SIS_340) { + /* TODO */ + data = 0; + } else if(SiS_Pr->ChipType >= SIS_661) { + if(SiS_Pr->SiS_ROMNew) { + data = ((SiS_GetReg(SiS_Pr->SiS_P3d4,0x78) & 0xc0) >> 6); + } else { + data = SiS_GetReg(SiS_Pr->SiS_P3d4,0x78) & 0x07; + } + } else if(IS_SIS550650740) { + data = SiS_GetReg(SiS_Pr->SiS_P3c4,0x13) & 0x07; + } else { /* 315, 330 */ + data = SiS_GetReg(SiS_Pr->SiS_P3c4,0x3a) & 0x03; + if(SiS_Pr->ChipType == SIS_330) { + if(data > 1) { + switch(SiS_GetReg(SiS_Pr->SiS_P3d4,0x5f) & 0x30) { + case 0x00: data = 1; break; + case 0x10: data = 3; break; + case 0x20: data = 3; break; + case 0x30: data = 2; break; + } + } else { + data = 0; + } + } + } + } + + return data; +} + +static unsigned short +SiS_GetMCLK(struct SiS_Private *SiS_Pr) +{ + unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; + unsigned short index; + + index = SiS_Get310DRAMType(SiS_Pr); + if(SiS_Pr->ChipType >= SIS_661) { + if(SiS_Pr->SiS_ROMNew) { + return((unsigned short)(SISGETROMW((0x90 + (index * 5) + 3)))); + } + return(SiS_Pr->SiS_MCLKData_0[index].CLOCK); + } else if(index >= 4) { + return(SiS_Pr->SiS_MCLKData_1[index - 4].CLOCK); + } else { + return(SiS_Pr->SiS_MCLKData_0[index].CLOCK); + } +} +#endif + +/*********************************************/ +/* HELPER: ClearBuffer */ +/*********************************************/ + +static void +SiS_ClearBuffer(struct SiS_Private *SiS_Pr, unsigned short ModeNo) +{ + unsigned char SISIOMEMTYPE *memaddr = SiS_Pr->VideoMemoryAddress; + unsigned int memsize = SiS_Pr->VideoMemorySize; + unsigned short SISIOMEMTYPE *pBuffer; + int i; + + if(!memaddr || !memsize) return; + + if(SiS_Pr->SiS_ModeType >= ModeEGA) { + if(ModeNo > 0x13) { + memset_io(memaddr, 0, memsize); + } else { + pBuffer = (unsigned short SISIOMEMTYPE *)memaddr; + for(i = 0; i < 0x4000; i++) writew(0x0000, &pBuffer[i]); + } + } else if(SiS_Pr->SiS_ModeType < ModeCGA) { + pBuffer = (unsigned short SISIOMEMTYPE *)memaddr; + for(i = 0; i < 0x4000; i++) writew(0x0720, &pBuffer[i]); + } else { + memset_io(memaddr, 0, 0x8000); + } +} + +/*********************************************/ +/* HELPER: SearchModeID */ +/*********************************************/ + +bool +SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo, + unsigned short *ModeIdIndex) +{ + unsigned char VGAINFO = SiS_Pr->SiS_VGAINFO; + + if((*ModeNo) <= 0x13) { + + if((*ModeNo) <= 0x05) (*ModeNo) |= 0x01; + + for((*ModeIdIndex) = 0; ;(*ModeIdIndex)++) { + if(SiS_Pr->SiS_SModeIDTable[(*ModeIdIndex)].St_ModeID == (*ModeNo)) break; + if(SiS_Pr->SiS_SModeIDTable[(*ModeIdIndex)].St_ModeID == 0xFF) return false; + } + + if((*ModeNo) == 0x07) { + if(VGAINFO & 0x10) (*ModeIdIndex)++; /* 400 lines */ + /* else 350 lines */ + } + if((*ModeNo) <= 0x03) { + if(!(VGAINFO & 0x80)) (*ModeIdIndex)++; + if(VGAINFO & 0x10) (*ModeIdIndex)++; /* 400 lines */ + /* else 350 lines */ + } + /* else 200 lines */ + + } else { + + for((*ModeIdIndex) = 0; ;(*ModeIdIndex)++) { + if(SiS_Pr->SiS_EModeIDTable[(*ModeIdIndex)].Ext_ModeID == (*ModeNo)) break; + if(SiS_Pr->SiS_EModeIDTable[(*ModeIdIndex)].Ext_ModeID == 0xFF) return false; + } + + } + return true; +} + +/*********************************************/ +/* HELPER: GetModePtr */ +/*********************************************/ + +unsigned short +SiS_GetModePtr(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex) +{ + unsigned short index; + + if(ModeNo <= 0x13) { + index = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_StTableIndex; + } else { + if(SiS_Pr->SiS_ModeType <= ModeEGA) index = 0x1B; + else index = 0x0F; + } + return index; +} + +/*********************************************/ +/* HELPERS: Get some indices */ +/*********************************************/ + +unsigned short +SiS_GetRefCRTVCLK(struct SiS_Private *SiS_Pr, unsigned short Index, int UseWide) +{ + if(SiS_Pr->SiS_RefIndex[Index].Ext_InfoFlag & HaveWideTiming) { + if(UseWide == 1) { + return SiS_Pr->SiS_RefIndex[Index].Ext_CRTVCLK_WIDE; + } else { + return SiS_Pr->SiS_RefIndex[Index].Ext_CRTVCLK_NORM; + } + } else { + return SiS_Pr->SiS_RefIndex[Index].Ext_CRTVCLK; + } +} + +unsigned short +SiS_GetRefCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short Index, int UseWide) +{ + if(SiS_Pr->SiS_RefIndex[Index].Ext_InfoFlag & HaveWideTiming) { + if(UseWide == 1) { + return SiS_Pr->SiS_RefIndex[Index].Ext_CRT1CRTC_WIDE; + } else { + return SiS_Pr->SiS_RefIndex[Index].Ext_CRT1CRTC_NORM; + } + } else { + return SiS_Pr->SiS_RefIndex[Index].Ext_CRT1CRTC; + } +} + +/*********************************************/ +/* HELPER: LowModeTests */ +/*********************************************/ + +static bool +SiS_DoLowModeTest(struct SiS_Private *SiS_Pr, unsigned short ModeNo) +{ + unsigned short temp, temp1, temp2; + + if((ModeNo != 0x03) && (ModeNo != 0x10) && (ModeNo != 0x12)) + return true; + temp = SiS_GetReg(SiS_Pr->SiS_P3d4,0x11); + SiS_SetRegOR(SiS_Pr->SiS_P3d4,0x11,0x80); + temp1 = SiS_GetReg(SiS_Pr->SiS_P3d4,0x00); + SiS_SetReg(SiS_Pr->SiS_P3d4,0x00,0x55); + temp2 = SiS_GetReg(SiS_Pr->SiS_P3d4,0x00); + SiS_SetReg(SiS_Pr->SiS_P3d4,0x00,temp1); + SiS_SetReg(SiS_Pr->SiS_P3d4,0x11,temp); + if((SiS_Pr->ChipType >= SIS_315H) || + (SiS_Pr->ChipType == SIS_300)) { + if(temp2 == 0x55) return false; + else return true; + } else { + if(temp2 != 0x55) return true; + else { + SiS_SetRegOR(SiS_Pr->SiS_P3d4,0x35,0x01); + return false; + } + } +} + +static void +SiS_SetLowModeTest(struct SiS_Private *SiS_Pr, unsigned short ModeNo) +{ + if(SiS_DoLowModeTest(SiS_Pr, ModeNo)) { + SiS_Pr->SiS_SetFlag |= LowModeTests; + } +} + +/*********************************************/ +/* HELPER: OPEN/CLOSE CRT1 CRTC */ +/*********************************************/ + +static void +SiS_OpenCRTC(struct SiS_Private *SiS_Pr) +{ + if(IS_SIS650) { + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x51,0x1f); + if(IS_SIS651) SiS_SetRegOR(SiS_Pr->SiS_P3d4,0x51,0x20); + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x56,0xe7); + } else if(IS_SIS661741660760) { + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x61,0xf7); + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x51,0x1f); + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x56,0xe7); + if(!SiS_Pr->SiS_ROMNew) { + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x3a,0xef); + } + } +} + +static void +SiS_CloseCRTC(struct SiS_Private *SiS_Pr) +{ +#if 0 /* This locks some CRTC registers. We don't want that. */ + unsigned short temp1 = 0, temp2 = 0; + + if(IS_SIS661741660760) { + if(SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA) { + temp1 = 0xa0; temp2 = 0x08; + } + SiS_SetRegANDOR(SiS_Pr->SiS_P3d4,0x51,0x1f,temp1); + SiS_SetRegANDOR(SiS_Pr->SiS_P3d4,0x56,0xe7,temp2); + } +#endif +} + +static void +SiS_HandleCRT1(struct SiS_Private *SiS_Pr) +{ + /* Enable CRT1 gating */ + SiS_SetRegAND(SiS_Pr->SiS_P3d4,SiS_Pr->SiS_MyCR63,0xbf); +#if 0 + if(!(SiS_GetReg(SiS_Pr->SiS_P3c4,0x15) & 0x01)) { + if((SiS_GetReg(SiS_Pr->SiS_P3c4,0x15) & 0x0a) || + (SiS_GetReg(SiS_Pr->SiS_P3c4,0x16) & 0x01)) { + SiS_SetRegOR(SiS_Pr->SiS_P3d4,SiS_Pr->SiS_MyCR63,0x40); + } + } +#endif +} + +/*********************************************/ +/* HELPER: GetColorDepth */ +/*********************************************/ + +unsigned short +SiS_GetColorDepth(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex) +{ + static const unsigned short ColorDepth[6] = { 1, 2, 4, 4, 6, 8 }; + unsigned short modeflag; + short index; + + /* Do NOT check UseCustomMode, will skrew up FIFO */ + if(ModeNo == 0xfe) { + modeflag = SiS_Pr->CModeFlag; + } else if(ModeNo <= 0x13) { + modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag; + } else { + modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag; + } + + index = (modeflag & ModeTypeMask) - ModeEGA; + if(index < 0) index = 0; + return ColorDepth[index]; +} + +/*********************************************/ +/* HELPER: GetOffset */ +/*********************************************/ + +unsigned short +SiS_GetOffset(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex, unsigned short RRTI) +{ + unsigned short xres, temp, colordepth, infoflag; + + if(SiS_Pr->UseCustomMode) { + infoflag = SiS_Pr->CInfoFlag; + xres = SiS_Pr->CHDisplay; + } else { + infoflag = SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag; + xres = SiS_Pr->SiS_RefIndex[RRTI].XRes; + } + + colordepth = SiS_GetColorDepth(SiS_Pr, ModeNo, ModeIdIndex); + + temp = xres / 16; + if(infoflag & InterlaceMode) temp <<= 1; + temp *= colordepth; + if(xres % 16) temp += (colordepth >> 1); + + return temp; +} + +/*********************************************/ +/* SEQ */ +/*********************************************/ + +static void +SiS_SetSeqRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex) +{ + unsigned char SRdata; + int i; + + SiS_SetReg(SiS_Pr->SiS_P3c4,0x00,0x03); + + /* or "display off" */ + SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[0] | 0x20; + + /* determine whether to force x8 dotclock */ + if((SiS_Pr->SiS_VBType & VB_SISVB) || (SiS_Pr->SiS_IF_DEF_LVDS)) { + + if(SiS_Pr->SiS_VBInfo & (SetCRT2ToLCD | SetCRT2ToTV)) { + if(SiS_Pr->SiS_VBInfo & SetInSlaveMode) SRdata |= 0x01; + } else if(SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA) SRdata |= 0x01; + + } + + SiS_SetReg(SiS_Pr->SiS_P3c4,0x01,SRdata); + + for(i = 2; i <= 4; i++) { + SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[i - 1]; + SiS_SetReg(SiS_Pr->SiS_P3c4,i,SRdata); + } +} + +/*********************************************/ +/* MISC */ +/*********************************************/ + +static void +SiS_SetMiscRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex) +{ + unsigned char Miscdata; + + Miscdata = SiS_Pr->SiS_StandTable[StandTableIndex].MISC; + + if(SiS_Pr->ChipType < SIS_661) { + if(SiS_Pr->SiS_VBType & VB_SIS30xBLV) { + if(SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA) { + Miscdata |= 0x0C; + } + } + } + + SiS_SetRegByte(SiS_Pr->SiS_P3c2,Miscdata); +} + +/*********************************************/ +/* CRTC */ +/*********************************************/ + +static void +SiS_SetCRTCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex) +{ + unsigned char CRTCdata; + unsigned short i; + + /* Unlock CRTC */ + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x11,0x7f); + + for(i = 0; i <= 0x18; i++) { + CRTCdata = SiS_Pr->SiS_StandTable[StandTableIndex].CRTC[i]; + SiS_SetReg(SiS_Pr->SiS_P3d4,i,CRTCdata); + } + + if(SiS_Pr->ChipType >= SIS_661) { + SiS_OpenCRTC(SiS_Pr); + for(i = 0x13; i <= 0x14; i++) { + CRTCdata = SiS_Pr->SiS_StandTable[StandTableIndex].CRTC[i]; + SiS_SetReg(SiS_Pr->SiS_P3d4,i,CRTCdata); + } + } else if( ( (SiS_Pr->ChipType == SIS_630) || + (SiS_Pr->ChipType == SIS_730) ) && + (SiS_Pr->ChipRevision >= 0x30) ) { + if(SiS_Pr->SiS_VBInfo & SetInSlaveMode) { + if(SiS_Pr->SiS_VBInfo & (SetCRT2ToLCD | SetCRT2ToTV)) { + SiS_SetReg(SiS_Pr->SiS_P3d4,0x18,0xFE); + } + } + } +} + +/*********************************************/ +/* ATT */ +/*********************************************/ + +static void +SiS_SetATTRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex) +{ + unsigned char ARdata; + unsigned short i; + + for(i = 0; i <= 0x13; i++) { + ARdata = SiS_Pr->SiS_StandTable[StandTableIndex].ATTR[i]; + + if(i == 0x13) { + /* Pixel shift. If screen on LCD or TV is shifted left or right, + * this might be the cause. + */ + if(SiS_Pr->SiS_VBType & VB_SIS30xBLV) { + if(SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA) ARdata = 0; + } + if(SiS_Pr->SiS_IF_DEF_LVDS == 1) { + if(SiS_Pr->SiS_IF_DEF_CH70xx != 0) { + if(SiS_Pr->SiS_VBInfo & SetCRT2ToTV) { + if(SiS_Pr->SiS_VBInfo & SetInSlaveMode) ARdata = 0; + } + } + } + if(SiS_Pr->ChipType >= SIS_661) { + if(SiS_Pr->SiS_VBInfo & (SetCRT2ToTV | SetCRT2ToLCD)) { + if(SiS_Pr->SiS_VBInfo & SetInSlaveMode) ARdata = 0; + } + } else if(SiS_Pr->SiS_VBInfo & SetCRT2ToLCD) { + if(SiS_Pr->ChipType >= SIS_315H) { + if(IS_SIS550650740660) { + /* 315, 330 don't do this */ + if(SiS_Pr->SiS_VBType & VB_SIS30xB) { + if(SiS_Pr->SiS_VBInfo & SetInSlaveMode) ARdata = 0; + } else { + ARdata = 0; + } + } + } else { + if(SiS_Pr->SiS_VBInfo & SetInSlaveMode) ARdata = 0; + } + } + } + SiS_GetRegByte(SiS_Pr->SiS_P3da); /* reset 3da */ + SiS_SetRegByte(SiS_Pr->SiS_P3c0,i); /* set index */ + SiS_SetRegByte(SiS_Pr->SiS_P3c0,ARdata); /* set data */ + } + + SiS_GetRegByte(SiS_Pr->SiS_P3da); /* reset 3da */ + SiS_SetRegByte(SiS_Pr->SiS_P3c0,0x14); /* set index */ + SiS_SetRegByte(SiS_Pr->SiS_P3c0,0x00); /* set data */ + + SiS_GetRegByte(SiS_Pr->SiS_P3da); + SiS_SetRegByte(SiS_Pr->SiS_P3c0,0x20); /* Enable Attribute */ + SiS_GetRegByte(SiS_Pr->SiS_P3da); +} + +/*********************************************/ +/* GRC */ +/*********************************************/ + +static void +SiS_SetGRCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex) +{ + unsigned char GRdata; + unsigned short i; + + for(i = 0; i <= 0x08; i++) { + GRdata = SiS_Pr->SiS_StandTable[StandTableIndex].GRC[i]; + SiS_SetReg(SiS_Pr->SiS_P3ce,i,GRdata); + } + + if(SiS_Pr->SiS_ModeType > ModeVGA) { + /* 256 color disable */ + SiS_SetRegAND(SiS_Pr->SiS_P3ce,0x05,0xBF); + } +} + +/*********************************************/ +/* CLEAR EXTENDED REGISTERS */ +/*********************************************/ + +static void +SiS_ClearExt1Regs(struct SiS_Private *SiS_Pr, unsigned short ModeNo) +{ + unsigned short i; + + for(i = 0x0A; i <= 0x0E; i++) { + SiS_SetReg(SiS_Pr->SiS_P3c4,i,0x00); + } + + if(SiS_Pr->ChipType >= SIS_315H) { + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x37,0xFE); + if(ModeNo <= 0x13) { + if(ModeNo == 0x06 || ModeNo >= 0x0e) { + SiS_SetReg(SiS_Pr->SiS_P3c4,0x0e,0x20); + } + } + } +} + +/*********************************************/ +/* RESET VCLK */ +/*********************************************/ + +static void +SiS_ResetCRT1VCLK(struct SiS_Private *SiS_Pr) +{ + if(SiS_Pr->ChipType >= SIS_315H) { + if(SiS_Pr->ChipType < SIS_661) { + if(SiS_Pr->SiS_IF_DEF_LVDS == 0) return; + } + } else { + if((SiS_Pr->SiS_IF_DEF_LVDS == 0) && + (!(SiS_Pr->SiS_VBType & VB_SIS30xBLV)) ) { + return; + } + } + + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x31,0xcf,0x20); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2B,SiS_Pr->SiS_VCLKData[1].SR2B); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2C,SiS_Pr->SiS_VCLKData[1].SR2C); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2D,0x80); + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x31,0xcf,0x10); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2B,SiS_Pr->SiS_VCLKData[0].SR2B); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2C,SiS_Pr->SiS_VCLKData[0].SR2C); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2D,0x80); +} + +/*********************************************/ +/* SYNC */ +/*********************************************/ + +static void +SiS_SetCRT1Sync(struct SiS_Private *SiS_Pr, unsigned short RRTI) +{ + unsigned short sync; + + if(SiS_Pr->UseCustomMode) { + sync = SiS_Pr->CInfoFlag >> 8; + } else { + sync = SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag >> 8; + } + + sync &= 0xC0; + sync |= 0x2f; + SiS_SetRegByte(SiS_Pr->SiS_P3c2,sync); +} + +/*********************************************/ +/* CRTC/2 */ +/*********************************************/ + +static void +SiS_SetCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex, unsigned short RRTI) +{ + unsigned short temp, i, j, modeflag; + unsigned char *crt1data = NULL; + + modeflag = SiS_GetModeFlag(SiS_Pr, ModeNo, ModeIdIndex); + + if(SiS_Pr->UseCustomMode) { + + crt1data = &SiS_Pr->CCRT1CRTC[0]; + + } else { + + temp = SiS_GetRefCRT1CRTC(SiS_Pr, RRTI, SiS_Pr->SiS_UseWide); + + /* Alternate for 1600x1200 LCDA */ + if((temp == 0x20) && (SiS_Pr->Alternate1600x1200)) temp = 0x57; + + crt1data = (unsigned char *)&SiS_Pr->SiS_CRT1Table[temp].CR[0]; + + } + + /* unlock cr0-7 */ + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x11,0x7f); + + for(i = 0, j = 0; i <= 7; i++, j++) { + SiS_SetReg(SiS_Pr->SiS_P3d4,j,crt1data[i]); + } + for(j = 0x10; i <= 10; i++, j++) { + SiS_SetReg(SiS_Pr->SiS_P3d4,j,crt1data[i]); + } + for(j = 0x15; i <= 12; i++, j++) { + SiS_SetReg(SiS_Pr->SiS_P3d4,j,crt1data[i]); + } + for(j = 0x0A; i <= 15; i++, j++) { + SiS_SetReg(SiS_Pr->SiS_P3c4,j,crt1data[i]); + } + + SiS_SetReg(SiS_Pr->SiS_P3c4,0x0E,crt1data[16] & 0xE0); + + temp = (crt1data[16] & 0x01) << 5; + if(modeflag & DoubleScanMode) temp |= 0x80; + SiS_SetRegANDOR(SiS_Pr->SiS_P3d4,0x09,0x5F,temp); + + if(SiS_Pr->SiS_ModeType > ModeVGA) { + SiS_SetReg(SiS_Pr->SiS_P3d4,0x14,0x4F); + } + +#ifdef CONFIG_FB_SIS_315 + if(SiS_Pr->ChipType == XGI_20) { + SiS_SetReg(SiS_Pr->SiS_P3d4,0x04,crt1data[4] - 1); + if(!(temp = crt1data[5] & 0x1f)) { + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x0c,0xfb); + } + SiS_SetRegANDOR(SiS_Pr->SiS_P3d4,0x05,0xe0,((temp - 1) & 0x1f)); + temp = (crt1data[16] >> 5) + 3; + if(temp > 7) temp -= 7; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x0e,0x1f,(temp << 5)); + } +#endif +} + +/*********************************************/ +/* OFFSET & PITCH */ +/*********************************************/ +/* (partly overruled by SetPitch() in XF86) */ +/*********************************************/ + +static void +SiS_SetCRT1Offset(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex, unsigned short RRTI) +{ + unsigned short temp, DisplayUnit, infoflag; + + if(SiS_Pr->UseCustomMode) { + infoflag = SiS_Pr->CInfoFlag; + } else { + infoflag = SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag; + } + + DisplayUnit = SiS_GetOffset(SiS_Pr, ModeNo, ModeIdIndex, RRTI); + + temp = (DisplayUnit >> 8) & 0x0f; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x0E,0xF0,temp); + + SiS_SetReg(SiS_Pr->SiS_P3d4,0x13,DisplayUnit & 0xFF); + + if(infoflag & InterlaceMode) DisplayUnit >>= 1; + + DisplayUnit <<= 5; + temp = (DisplayUnit >> 8) + 1; + if(DisplayUnit & 0xff) temp++; + if(SiS_Pr->ChipType == XGI_20) { + if(ModeNo == 0x4a || ModeNo == 0x49) temp--; + } + SiS_SetReg(SiS_Pr->SiS_P3c4,0x10,temp); +} + +/*********************************************/ +/* VCLK */ +/*********************************************/ + +static void +SiS_SetCRT1VCLK(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex, unsigned short RRTI) +{ + unsigned short index = 0, clka, clkb; + + if(SiS_Pr->UseCustomMode) { + clka = SiS_Pr->CSR2B; + clkb = SiS_Pr->CSR2C; + } else { + index = SiS_GetVCLK2Ptr(SiS_Pr, ModeNo, ModeIdIndex, RRTI); + if((SiS_Pr->SiS_VBType & VB_SIS30xBLV) && + (SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA)) { + /* Alternate for 1600x1200 LCDA */ + if((index == 0x21) && (SiS_Pr->Alternate1600x1200)) index = 0x72; + clka = SiS_Pr->SiS_VBVCLKData[index].Part4_A; + clkb = SiS_Pr->SiS_VBVCLKData[index].Part4_B; + } else { + clka = SiS_Pr->SiS_VCLKData[index].SR2B; + clkb = SiS_Pr->SiS_VCLKData[index].SR2C; + } + } + + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x31,0xCF); + + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2b,clka); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2c,clkb); + + if(SiS_Pr->ChipType >= SIS_315H) { +#ifdef CONFIG_FB_SIS_315 + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2D,0x01); + if(SiS_Pr->ChipType == XGI_20) { + unsigned short mf = SiS_GetModeFlag(SiS_Pr, ModeNo, ModeIdIndex); + if(mf & HalfDCLK) { + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2b,SiS_GetReg(SiS_Pr->SiS_P3c4,0x2b)); + clkb = SiS_GetReg(SiS_Pr->SiS_P3c4,0x2c); + clkb = (((clkb & 0x1f) << 1) + 1) | (clkb & 0xe0); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2c,clkb); + } + } +#endif + } else { + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2D,0x80); + } +} + +/*********************************************/ +/* FIFO */ +/*********************************************/ + +#ifdef CONFIG_FB_SIS_300 +void +SiS_GetFIFOThresholdIndex300(struct SiS_Private *SiS_Pr, unsigned short *idx1, + unsigned short *idx2) +{ + unsigned short temp1, temp2; + static const unsigned char ThTiming[8] = { + 1, 2, 2, 3, 0, 1, 1, 2 + }; + + temp1 = temp2 = (SiS_GetReg(SiS_Pr->SiS_P3c4,0x18) & 0x62) >> 1; + (*idx2) = (unsigned short)(ThTiming[((temp2 >> 3) | temp1) & 0x07]); + (*idx1) = (unsigned short)(SiS_GetReg(SiS_Pr->SiS_P3c4,0x16) >> 6) & 0x03; + (*idx1) |= (unsigned short)(((SiS_GetReg(SiS_Pr->SiS_P3c4,0x14) >> 4) & 0x0c)); + (*idx1) <<= 1; +} + +static unsigned short +SiS_GetFIFOThresholdA300(unsigned short idx1, unsigned short idx2) +{ + static const unsigned char ThLowA[8 * 3] = { + 61, 3,52, 5,68, 7,100,11, + 43, 3,42, 5,54, 7, 78,11, + 34, 3,37, 5,47, 7, 67,11 + }; + + return (unsigned short)((ThLowA[idx1 + 1] * idx2) + ThLowA[idx1]); +} + +unsigned short +SiS_GetFIFOThresholdB300(unsigned short idx1, unsigned short idx2) +{ + static const unsigned char ThLowB[8 * 3] = { + 81, 4,72, 6,88, 8,120,12, + 55, 4,54, 6,66, 8, 90,12, + 42, 4,45, 6,55, 8, 75,12 + }; + + return (unsigned short)((ThLowB[idx1 + 1] * idx2) + ThLowB[idx1]); +} + +static unsigned short +SiS_DoCalcDelay(struct SiS_Private *SiS_Pr, unsigned short MCLK, unsigned short VCLK, + unsigned short colordepth, unsigned short key) +{ + unsigned short idx1, idx2; + unsigned int longtemp = VCLK * colordepth; + + SiS_GetFIFOThresholdIndex300(SiS_Pr, &idx1, &idx2); + + if(key == 0) { + longtemp *= SiS_GetFIFOThresholdA300(idx1, idx2); + } else { + longtemp *= SiS_GetFIFOThresholdB300(idx1, idx2); + } + idx1 = longtemp % (MCLK * 16); + longtemp /= (MCLK * 16); + if(idx1) longtemp++; + return (unsigned short)longtemp; +} + +static unsigned short +SiS_CalcDelay(struct SiS_Private *SiS_Pr, unsigned short VCLK, + unsigned short colordepth, unsigned short MCLK) +{ + unsigned short temp1, temp2; + + temp2 = SiS_DoCalcDelay(SiS_Pr, MCLK, VCLK, colordepth, 0); + temp1 = SiS_DoCalcDelay(SiS_Pr, MCLK, VCLK, colordepth, 1); + if(temp1 < 4) temp1 = 4; + temp1 -= 4; + if(temp2 < temp1) temp2 = temp1; + return temp2; +} + +static void +SiS_SetCRT1FIFO_300(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short RefreshRateTableIndex) +{ + unsigned short ThresholdLow = 0; + unsigned short temp, index, VCLK, MCLK, colorth; + static const unsigned short colortharray[6] = { 1, 1, 2, 2, 3, 4 }; + + if(ModeNo > 0x13) { + + /* Get VCLK */ + if(SiS_Pr->UseCustomMode) { + VCLK = SiS_Pr->CSRClock; + } else { + index = SiS_GetRefCRTVCLK(SiS_Pr, RefreshRateTableIndex, SiS_Pr->SiS_UseWide); + VCLK = SiS_Pr->SiS_VCLKData[index].CLOCK; + } + + /* Get half colordepth */ + colorth = colortharray[(SiS_Pr->SiS_ModeType - ModeEGA)]; + + /* Get MCLK */ + index = SiS_GetReg(SiS_Pr->SiS_P3c4,0x3A) & 0x07; + MCLK = SiS_Pr->SiS_MCLKData_0[index].CLOCK; + + temp = SiS_GetReg(SiS_Pr->SiS_P3d4,0x35) & 0xc3; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x16,0x3c,temp); + + do { + ThresholdLow = SiS_CalcDelay(SiS_Pr, VCLK, colorth, MCLK) + 1; + if(ThresholdLow < 0x13) break; + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x16,0xfc); + ThresholdLow = 0x13; + temp = SiS_GetReg(SiS_Pr->SiS_P3c4,0x16) >> 6; + if(!temp) break; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x16,0x3f,((temp - 1) << 6)); + } while(0); + + } else ThresholdLow = 2; + + /* Write CRT/CPU threshold low, CRT/Engine threshold high */ + temp = (ThresholdLow << 4) | 0x0f; + SiS_SetReg(SiS_Pr->SiS_P3c4,0x08,temp); + + temp = (ThresholdLow & 0x10) << 1; + if(ModeNo > 0x13) temp |= 0x40; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x0f,0x9f,temp); + + /* What is this? */ + SiS_SetReg(SiS_Pr->SiS_P3c4,0x3B,0x09); + + /* Write CRT/CPU threshold high */ + temp = ThresholdLow + 3; + if(temp > 0x0f) temp = 0x0f; + SiS_SetReg(SiS_Pr->SiS_P3c4,0x09,temp); +} + +unsigned short +SiS_GetLatencyFactor630(struct SiS_Private *SiS_Pr, unsigned short index) +{ + static const unsigned char LatencyFactor[] = { + 97, 88, 86, 79, 77, 0, /* 64 bit BQ=2 */ + 0, 87, 85, 78, 76, 54, /* 64 bit BQ=1 */ + 97, 88, 86, 79, 77, 0, /* 128 bit BQ=2 */ + 0, 79, 77, 70, 68, 48, /* 128 bit BQ=1 */ + 80, 72, 69, 63, 61, 0, /* 64 bit BQ=2 */ + 0, 70, 68, 61, 59, 37, /* 64 bit BQ=1 */ + 86, 77, 75, 68, 66, 0, /* 128 bit BQ=2 */ + 0, 68, 66, 59, 57, 37 /* 128 bit BQ=1 */ + }; + static const unsigned char LatencyFactor730[] = { + 69, 63, 61, + 86, 79, 77, + 103, 96, 94, + 120,113,111, + 137,130,128 + }; + + if(SiS_Pr->ChipType == SIS_730) { + return (unsigned short)LatencyFactor730[index]; + } else { + return (unsigned short)LatencyFactor[index]; + } +} + +static unsigned short +SiS_CalcDelay2(struct SiS_Private *SiS_Pr, unsigned char key) +{ + unsigned short index; + + if(SiS_Pr->ChipType == SIS_730) { + index = ((key & 0x0f) * 3) + ((key & 0xc0) >> 6); + } else { + index = (key & 0xe0) >> 5; + if(key & 0x10) index += 6; + if(!(key & 0x01)) index += 24; + if(SiS_GetReg(SiS_Pr->SiS_P3c4,0x14) & 0x80) index += 12; + } + return SiS_GetLatencyFactor630(SiS_Pr, index); +} + +static void +SiS_SetCRT1FIFO_630(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short RefreshRateTableIndex) +{ + unsigned short ThresholdLow = 0; + unsigned short i, data, VCLK, MCLK16, colorth = 0; + unsigned int templ, datal; + const unsigned char *queuedata = NULL; + static const unsigned char FQBQData[21] = { + 0x01,0x21,0x41,0x61,0x81, + 0x31,0x51,0x71,0x91,0xb1, + 0x00,0x20,0x40,0x60,0x80, + 0x30,0x50,0x70,0x90,0xb0, + 0xff + }; + static const unsigned char FQBQData730[16] = { + 0x34,0x74,0xb4, + 0x23,0x63,0xa3, + 0x12,0x52,0x92, + 0x01,0x41,0x81, + 0x00,0x40,0x80, + 0xff + }; + static const unsigned short colortharray[6] = { + 1, 1, 2, 2, 3, 4 + }; + + i = 0; + + if (SiS_Pr->ChipType == SIS_730) + queuedata = &FQBQData730[0]; + else + queuedata = &FQBQData[0]; + + if(ModeNo > 0x13) { + + /* Get VCLK */ + if(SiS_Pr->UseCustomMode) { + VCLK = SiS_Pr->CSRClock; + } else { + data = SiS_GetRefCRTVCLK(SiS_Pr, RefreshRateTableIndex, SiS_Pr->SiS_UseWide); + VCLK = SiS_Pr->SiS_VCLKData[data].CLOCK; + } + + /* Get MCLK * 16 */ + data = SiS_GetReg(SiS_Pr->SiS_P3c4,0x1A) & 0x07; + MCLK16 = SiS_Pr->SiS_MCLKData_0[data].CLOCK * 16; + + /* Get half colordepth */ + colorth = colortharray[(SiS_Pr->SiS_ModeType - ModeEGA)]; + + do { + templ = SiS_CalcDelay2(SiS_Pr, queuedata[i]) * VCLK * colorth; + + datal = templ % MCLK16; + templ = (templ / MCLK16) + 1; + if(datal) templ++; + + if(templ > 0x13) { + if(queuedata[i + 1] == 0xFF) { + ThresholdLow = 0x13; + break; + } + i++; + } else { + ThresholdLow = templ; + break; + } + } while(queuedata[i] != 0xFF); + + } else { + + if(SiS_Pr->ChipType != SIS_730) i = 9; + ThresholdLow = 0x02; + + } + + /* Write CRT/CPU threshold low, CRT/Engine threshold high */ + data = ((ThresholdLow & 0x0f) << 4) | 0x0f; + SiS_SetReg(SiS_Pr->SiS_P3c4,0x08,data); + + data = (ThresholdLow & 0x10) << 1; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x0F,0xDF,data); + + /* What is this? */ + SiS_SetReg(SiS_Pr->SiS_P3c4,0x3B,0x09); + + /* Write CRT/CPU threshold high (gap = 3) */ + data = ThresholdLow + 3; + if(data > 0x0f) data = 0x0f; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x09,0x80,data); + + /* Write foreground and background queue */ + templ = sisfb_read_nbridge_pci_dword(SiS_Pr, 0x50); + + if(SiS_Pr->ChipType == SIS_730) { + + templ &= 0xfffff9ff; + templ |= ((queuedata[i] & 0xc0) << 3); + + } else { + + templ &= 0xf0ffffff; + if( (ModeNo <= 0x13) && + (SiS_Pr->ChipType == SIS_630) && + (SiS_Pr->ChipRevision >= 0x30) ) { + templ |= 0x0b000000; + } else { + templ |= ((queuedata[i] & 0xf0) << 20); + } + + } + + sisfb_write_nbridge_pci_dword(SiS_Pr, 0x50, templ); + templ = sisfb_read_nbridge_pci_dword(SiS_Pr, 0xA0); + + /* GUI grant timer (PCI config 0xA3) */ + if(SiS_Pr->ChipType == SIS_730) { + + templ &= 0x00ffffff; + datal = queuedata[i] << 8; + templ |= (((datal & 0x0f00) | ((datal & 0x3000) >> 8)) << 20); + + } else { + + templ &= 0xf0ffffff; + templ |= ((queuedata[i] & 0x0f) << 24); + + } + + sisfb_write_nbridge_pci_dword(SiS_Pr, 0xA0, templ); +} +#endif /* CONFIG_FB_SIS_300 */ + +#ifdef CONFIG_FB_SIS_315 +static void +SiS_SetCRT1FIFO_310(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex) +{ + unsigned short modeflag; + + /* disable auto-threshold */ + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x3D,0xFE); + + modeflag = SiS_GetModeFlag(SiS_Pr, ModeNo, ModeIdIndex); + + SiS_SetReg(SiS_Pr->SiS_P3c4,0x08,0xAE); + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x09,0xF0); + if(ModeNo > 0x13) { + if(SiS_Pr->ChipType >= XGI_20) { + SiS_SetReg(SiS_Pr->SiS_P3c4,0x08,0x34); + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x3D,0x01); + } else if(SiS_Pr->ChipType >= SIS_661) { + if(!(modeflag & HalfDCLK)) { + SiS_SetReg(SiS_Pr->SiS_P3c4,0x08,0x34); + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x3D,0x01); + } + } else { + if((!(modeflag & DoubleScanMode)) || (!(modeflag & HalfDCLK))) { + SiS_SetReg(SiS_Pr->SiS_P3c4,0x08,0x34); + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x3D,0x01); + } + } + } +} +#endif + +/*********************************************/ +/* MODE REGISTERS */ +/*********************************************/ + +static void +SiS_SetVCLKState(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short RefreshRateTableIndex, unsigned short ModeIdIndex) +{ + unsigned short data = 0, VCLK = 0, index = 0; + + if(ModeNo > 0x13) { + if(SiS_Pr->UseCustomMode) { + VCLK = SiS_Pr->CSRClock; + } else { + index = SiS_GetVCLK2Ptr(SiS_Pr, ModeNo, ModeIdIndex, RefreshRateTableIndex); + VCLK = SiS_Pr->SiS_VCLKData[index].CLOCK; + } + } + + if(SiS_Pr->ChipType < SIS_315H) { +#ifdef CONFIG_FB_SIS_300 + if(VCLK > 150) data |= 0x80; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x07,0x7B,data); + + data = 0x00; + if(VCLK >= 150) data |= 0x08; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x32,0xF7,data); +#endif + } else if(SiS_Pr->ChipType < XGI_20) { +#ifdef CONFIG_FB_SIS_315 + if(VCLK >= 166) data |= 0x0c; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x32,0xf3,data); + + if(VCLK >= 166) { + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x1f,0xe7); + } +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + if(VCLK >= 200) data |= 0x0c; + if(SiS_Pr->ChipType == XGI_20) data &= ~0x04; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x32,0xf3,data); + if(SiS_Pr->ChipType != XGI_20) { + data = SiS_GetReg(SiS_Pr->SiS_P3c4,0x1f) & 0xe7; + if(VCLK < 200) data |= 0x10; + SiS_SetReg(SiS_Pr->SiS_P3c4,0x1f,data); + } +#endif + } + + /* DAC speed */ + if(SiS_Pr->ChipType >= SIS_661) { + + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x07,0xE8,0x10); + + } else { + + data = 0x03; + if(VCLK >= 260) data = 0x00; + else if(VCLK >= 160) data = 0x01; + else if(VCLK >= 135) data = 0x02; + + if(SiS_Pr->ChipType == SIS_540) { + /* Was == 203 or < 234 which made no sense */ + if (VCLK < 234) data = 0x02; + } + + if(SiS_Pr->ChipType < SIS_315H) { + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x07,0xFC,data); + } else { + if(SiS_Pr->ChipType > SIS_315PRO) { + if(ModeNo > 0x13) data &= 0xfc; + } + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x07,0xF8,data); + } + + } +} + +static void +SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex, unsigned short RRTI) +{ + unsigned short data, infoflag = 0, modeflag; +#ifdef CONFIG_FB_SIS_315 + unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; + unsigned short data2, data3; +#endif + + modeflag = SiS_GetModeFlag(SiS_Pr, ModeNo, ModeIdIndex); + + if(SiS_Pr->UseCustomMode) { + infoflag = SiS_Pr->CInfoFlag; + } else { + if(ModeNo > 0x13) { + infoflag = SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag; + } + } + + /* Disable DPMS */ + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x1F,0x3F); + + data = 0; + if(ModeNo > 0x13) { + if(SiS_Pr->SiS_ModeType > ModeEGA) { + data |= 0x02; + data |= ((SiS_Pr->SiS_ModeType - ModeVGA) << 2); + } + if(infoflag & InterlaceMode) data |= 0x20; + } + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x06,0xC0,data); + + if(SiS_Pr->ChipType != SIS_300) { + data = 0; + if(infoflag & InterlaceMode) { + /* data = (Hsync / 8) - ((Htotal / 8) / 2) + 3 */ + int hrs = (SiS_GetReg(SiS_Pr->SiS_P3d4,0x04) | + ((SiS_GetReg(SiS_Pr->SiS_P3c4,0x0b) & 0xc0) << 2)) - 3; + int hto = (SiS_GetReg(SiS_Pr->SiS_P3d4,0x00) | + ((SiS_GetReg(SiS_Pr->SiS_P3c4,0x0b) & 0x03) << 8)) + 5; + data = hrs - (hto >> 1) + 3; + } + SiS_SetReg(SiS_Pr->SiS_P3d4,0x19,data); + SiS_SetRegANDOR(SiS_Pr->SiS_P3d4,0x1a,0xFC,((data >> 8) & 0x03)); + } + + if(modeflag & HalfDCLK) { + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x01,0x08); + } + + data = 0; + if(modeflag & LineCompareOff) data = 0x08; + if(SiS_Pr->ChipType == SIS_300) { + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x0F,0xF7,data); + } else { + if(SiS_Pr->ChipType >= XGI_20) data |= 0x20; + if(SiS_Pr->SiS_ModeType == ModeEGA) { + if(ModeNo > 0x13) { + data |= 0x40; + } + } + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x0F,0xB7,data); + } + +#ifdef CONFIG_FB_SIS_315 + if(SiS_Pr->ChipType >= SIS_315H) { + SiS_SetRegAND(SiS_Pr->SiS_P3c4,0x31,0xfb); + } + + if(SiS_Pr->ChipType == SIS_315PRO) { + + data = SiS_Pr->SiS_SR15[(2 * 4) + SiS_Get310DRAMType(SiS_Pr)]; + if(SiS_Pr->SiS_ModeType == ModeText) { + data &= 0xc7; + } else { + data2 = SiS_GetOffset(SiS_Pr, ModeNo, ModeIdIndex, RRTI) >> 1; + if(infoflag & InterlaceMode) data2 >>= 1; + data3 = SiS_GetColorDepth(SiS_Pr, ModeNo, ModeIdIndex) >> 1; + if(data3) data2 /= data3; + if(data2 >= 0x50) { + data &= 0x0f; + data |= 0x50; + } + } + SiS_SetReg(SiS_Pr->SiS_P3c4,0x17,data); + + } else if((SiS_Pr->ChipType == SIS_330) || (SiS_Pr->SiS_SysFlags & SF_760LFB)) { + + data = SiS_Get310DRAMType(SiS_Pr); + if(SiS_Pr->ChipType == SIS_330) { + data = SiS_Pr->SiS_SR15[(2 * 4) + data]; + } else { + if(SiS_Pr->SiS_ROMNew) data = ROMAddr[0xf6]; + else if(SiS_Pr->SiS_UseROM) data = ROMAddr[0x100 + data]; + else data = 0xba; + } + if(SiS_Pr->SiS_ModeType <= ModeEGA) { + data &= 0xc7; + } else { + if(SiS_Pr->UseCustomMode) { + data2 = SiS_Pr->CSRClock; + } else { + data2 = SiS_GetVCLK2Ptr(SiS_Pr, ModeNo, ModeIdIndex, RRTI); + data2 = SiS_Pr->SiS_VCLKData[data2].CLOCK; + } + + data3 = SiS_GetColorDepth(SiS_Pr, ModeNo, ModeIdIndex) >> 1; + if(data3) data2 *= data3; + + data2 = ((unsigned int)(SiS_GetMCLK(SiS_Pr) * 1024)) / data2; + + if(SiS_Pr->ChipType == SIS_330) { + if(SiS_Pr->SiS_ModeType != Mode16Bpp) { + if (data2 >= 0x19c) data = 0xba; + else if(data2 >= 0x140) data = 0x7a; + else if(data2 >= 0x101) data = 0x3a; + else if(data2 >= 0xf5) data = 0x32; + else if(data2 >= 0xe2) data = 0x2a; + else if(data2 >= 0xc4) data = 0x22; + else if(data2 >= 0xac) data = 0x1a; + else if(data2 >= 0x9e) data = 0x12; + else if(data2 >= 0x8e) data = 0x0a; + else data = 0x02; + } else { + if(data2 >= 0x127) data = 0xba; + else data = 0x7a; + } + } else { /* 76x+LFB */ + if (data2 >= 0x190) data = 0xba; + else if(data2 >= 0xff) data = 0x7a; + else if(data2 >= 0xd3) data = 0x3a; + else if(data2 >= 0xa9) data = 0x1a; + else if(data2 >= 0x93) data = 0x0a; + else data = 0x02; + } + } + SiS_SetReg(SiS_Pr->SiS_P3c4,0x17,data); + + } + /* XGI: Nothing. */ + /* TODO: Check SiS340 */ +#endif + + data = 0x60; + if(SiS_Pr->SiS_ModeType != ModeText) { + data ^= 0x60; + if(SiS_Pr->SiS_ModeType != ModeEGA) { + data ^= 0xA0; + } + } + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x21,0x1F,data); + + SiS_SetVCLKState(SiS_Pr, ModeNo, RRTI, ModeIdIndex); + +#ifdef CONFIG_FB_SIS_315 + if(((SiS_Pr->ChipType >= SIS_315H) && (SiS_Pr->ChipType < SIS_661)) || + (SiS_Pr->ChipType == XGI_40)) { + if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x31) & 0x40) { + SiS_SetReg(SiS_Pr->SiS_P3d4,0x52,0x2c); + } else { + SiS_SetReg(SiS_Pr->SiS_P3d4,0x52,0x6c); + } + } else if(SiS_Pr->ChipType == XGI_20) { + if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x31) & 0x40) { + SiS_SetReg(SiS_Pr->SiS_P3d4,0x52,0x33); + } else { + SiS_SetReg(SiS_Pr->SiS_P3d4,0x52,0x73); + } + SiS_SetReg(SiS_Pr->SiS_P3d4,0x51,0x02); + } +#endif +} + +#ifdef CONFIG_FB_SIS_315 +static void +SiS_SetupDualChip(struct SiS_Private *SiS_Pr) +{ +#if 0 + /* TODO: Find out about IOAddress2 */ + SISIOADDRESS P2_3c2 = SiS_Pr->IOAddress2 + 0x12; + SISIOADDRESS P2_3c4 = SiS_Pr->IOAddress2 + 0x14; + SISIOADDRESS P2_3ce = SiS_Pr->IOAddress2 + 0x1e; + int i; + + if((SiS_Pr->ChipRevision != 0) || + (!(SiS_GetReg(SiS_Pr->SiS_P3c4,0x3a) & 0x04))) + return; + + for(i = 0; i <= 4; i++) { /* SR00 - SR04 */ + SiS_SetReg(P2_3c4,i,SiS_GetReg(SiS_Pr->SiS_P3c4,i)); + } + for(i = 0; i <= 8; i++) { /* GR00 - GR08 */ + SiS_SetReg(P2_3ce,i,SiS_GetReg(SiS_Pr->SiS_P3ce,i)); + } + SiS_SetReg(P2_3c4,0x05,0x86); + SiS_SetReg(P2_3c4,0x06,SiS_GetReg(SiS_Pr->SiS_P3c4,0x06)); /* SR06 */ + SiS_SetReg(P2_3c4,0x21,SiS_GetReg(SiS_Pr->SiS_P3c4,0x21)); /* SR21 */ + SiS_SetRegByte(P2_3c2,SiS_GetRegByte(SiS_Pr->SiS_P3cc)); /* MISC */ + SiS_SetReg(P2_3c4,0x05,0x00); +#endif +} +#endif + +/*********************************************/ +/* LOAD DAC */ +/*********************************************/ + +static void +SiS_WriteDAC(struct SiS_Private *SiS_Pr, SISIOADDRESS DACData, unsigned short shiftflag, + unsigned short dl, unsigned short ah, unsigned short al, unsigned short dh) +{ + unsigned short d1, d2, d3; + + switch(dl) { + case 0: d1 = dh; d2 = ah; d3 = al; break; + case 1: d1 = ah; d2 = al; d3 = dh; break; + default: d1 = al; d2 = dh; d3 = ah; + } + SiS_SetRegByte(DACData, (d1 << shiftflag)); + SiS_SetRegByte(DACData, (d2 << shiftflag)); + SiS_SetRegByte(DACData, (d3 << shiftflag)); +} + +void +SiS_LoadDAC(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex) +{ + unsigned short data, data2, time, i, j, k, m, n, o; + unsigned short si, di, bx, sf; + SISIOADDRESS DACAddr, DACData; + const unsigned char *table = NULL; + + data = SiS_GetModeFlag(SiS_Pr, ModeNo, ModeIdIndex) & DACInfoFlag; + + j = time = 64; + if(data == 0x00) table = SiS_MDA_DAC; + else if(data == 0x08) table = SiS_CGA_DAC; + else if(data == 0x10) table = SiS_EGA_DAC; + else if(data == 0x18) { + j = 16; + time = 256; + table = SiS_VGA_DAC; + } + + if( ( (SiS_Pr->SiS_VBInfo & SetCRT2ToLCD) && /* 301B-DH LCD */ + (SiS_Pr->SiS_VBType & VB_NoLCD) ) || + (SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA) || /* LCDA */ + (!(SiS_Pr->SiS_SetFlag & ProgrammingCRT2)) ) { /* Programming CRT1 */ + SiS_SetRegByte(SiS_Pr->SiS_P3c6,0xFF); + DACAddr = SiS_Pr->SiS_P3c8; + DACData = SiS_Pr->SiS_P3c9; + sf = 0; + } else { + DACAddr = SiS_Pr->SiS_Part5Port; + DACData = SiS_Pr->SiS_Part5Port + 1; + sf = 2; + } + + SiS_SetRegByte(DACAddr,0x00); + + for(i = 0; i < j; i++) { + data = table[i]; + for(k = 0; k < 3; k++) { + data2 = 0; + if(data & 0x01) data2 += 0x2A; + if(data & 0x02) data2 += 0x15; + SiS_SetRegByte(DACData, (data2 << sf)); + data >>= 2; + } + } + + if(time == 256) { + for(i = 16; i < 32; i++) { + data = table[i] << sf; + for(k = 0; k < 3; k++) SiS_SetRegByte(DACData, data); + } + si = 32; + for(m = 0; m < 9; m++) { + di = si; + bx = si + 4; + for(n = 0; n < 3; n++) { + for(o = 0; o < 5; o++) { + SiS_WriteDAC(SiS_Pr, DACData, sf, n, table[di], table[bx], table[si]); + si++; + } + si -= 2; + for(o = 0; o < 3; o++) { + SiS_WriteDAC(SiS_Pr, DACData, sf, n, table[di], table[si], table[bx]); + si--; + } + } /* for n < 3 */ + si += 5; + } /* for m < 9 */ + } +} + +/*********************************************/ +/* SET CRT1 REGISTER GROUP */ +/*********************************************/ + +static void +SiS_SetCRT1Group(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex) +{ + unsigned short StandTableIndex, RefreshRateTableIndex; + + SiS_Pr->SiS_CRT1Mode = ModeNo; + + StandTableIndex = SiS_GetModePtr(SiS_Pr, ModeNo, ModeIdIndex); + + if(SiS_Pr->SiS_SetFlag & LowModeTests) { + if(SiS_Pr->SiS_VBInfo & (SetSimuScanMode | SwitchCRT2)) { + SiS_DisableBridge(SiS_Pr); + } + } + + SiS_ResetSegmentRegisters(SiS_Pr); + + SiS_SetSeqRegs(SiS_Pr, StandTableIndex); + SiS_SetMiscRegs(SiS_Pr, StandTableIndex); + SiS_SetCRTCRegs(SiS_Pr, StandTableIndex); + SiS_SetATTRegs(SiS_Pr, StandTableIndex); + SiS_SetGRCRegs(SiS_Pr, StandTableIndex); + SiS_ClearExt1Regs(SiS_Pr, ModeNo); + SiS_ResetCRT1VCLK(SiS_Pr); + + SiS_Pr->SiS_SelectCRT2Rate = 0; + SiS_Pr->SiS_SetFlag &= (~ProgrammingCRT2); + + if(SiS_Pr->SiS_VBInfo & SetSimuScanMode) { + if(SiS_Pr->SiS_VBInfo & SetInSlaveMode) { + SiS_Pr->SiS_SetFlag |= ProgrammingCRT2; + } + } + + if(SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA) { + SiS_Pr->SiS_SetFlag |= ProgrammingCRT2; + } + + RefreshRateTableIndex = SiS_GetRatePtr(SiS_Pr, ModeNo, ModeIdIndex); + + if(!(SiS_Pr->SiS_VBInfo & SetCRT2ToLCDA)) { + SiS_Pr->SiS_SetFlag &= ~ProgrammingCRT2; + } + + if(RefreshRateTableIndex != 0xFFFF) { + SiS_SetCRT1Sync(SiS_Pr, RefreshRateTableIndex); + SiS_SetCRT1CRTC(SiS_Pr, ModeNo, ModeIdIndex, RefreshRateTableIndex); + SiS_SetCRT1Offset(SiS_Pr, ModeNo, ModeIdIndex, RefreshRateTableIndex); + SiS_SetCRT1VCLK(SiS_Pr, ModeNo, ModeIdIndex, RefreshRateTableIndex); + } + + switch(SiS_Pr->ChipType) { +#ifdef CONFIG_FB_SIS_300 + case SIS_300: + SiS_SetCRT1FIFO_300(SiS_Pr, ModeNo, RefreshRateTableIndex); + break; + case SIS_540: + case SIS_630: + case SIS_730: + SiS_SetCRT1FIFO_630(SiS_Pr, ModeNo, RefreshRateTableIndex); + break; +#endif + default: +#ifdef CONFIG_FB_SIS_315 + if(SiS_Pr->ChipType == XGI_20) { + unsigned char sr2b = 0, sr2c = 0; + switch(ModeNo) { + case 0x00: + case 0x01: sr2b = 0x4e; sr2c = 0xe9; break; + case 0x04: + case 0x05: + case 0x0d: sr2b = 0x1b; sr2c = 0xe3; break; + } + if(sr2b) { + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2b,sr2b); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x2c,sr2c); + SiS_SetRegByte(SiS_Pr->SiS_P3c2,(SiS_GetRegByte(SiS_Pr->SiS_P3cc) | 0x0c)); + } + } + SiS_SetCRT1FIFO_310(SiS_Pr, ModeNo, ModeIdIndex); +#endif + break; + } + + SiS_SetCRT1ModeRegs(SiS_Pr, ModeNo, ModeIdIndex, RefreshRateTableIndex); + +#ifdef CONFIG_FB_SIS_315 + if(SiS_Pr->ChipType == XGI_40) { + SiS_SetupDualChip(SiS_Pr); + } +#endif + + SiS_LoadDAC(SiS_Pr, ModeNo, ModeIdIndex); + + if(SiS_Pr->SiS_flag_clearbuffer) { + SiS_ClearBuffer(SiS_Pr, ModeNo); + } + + if(!(SiS_Pr->SiS_VBInfo & (SetSimuScanMode | SwitchCRT2 | SetCRT2ToLCDA))) { + SiS_WaitRetrace1(SiS_Pr); + SiS_DisplayOn(SiS_Pr); + } +} + +/*********************************************/ +/* HELPER: VIDEO BRIDGE PROG CLK */ +/*********************************************/ + +static void +SiS_InitVB(struct SiS_Private *SiS_Pr) +{ + unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; + + SiS_Pr->Init_P4_0E = 0; + if(SiS_Pr->SiS_ROMNew) { + SiS_Pr->Init_P4_0E = ROMAddr[0x82]; + } else if(SiS_Pr->ChipType >= XGI_40) { + if(SiS_Pr->SiS_XGIROM) { + SiS_Pr->Init_P4_0E = ROMAddr[0x80]; + } + } +} + +static void +SiS_ResetVB(struct SiS_Private *SiS_Pr) +{ +#ifdef CONFIG_FB_SIS_315 + unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; + unsigned short temp; + + /* VB programming clock */ + if(SiS_Pr->SiS_UseROM) { + if(SiS_Pr->ChipType < SIS_330) { + temp = ROMAddr[VB310Data_1_2_Offset] | 0x40; + if(SiS_Pr->SiS_ROMNew) temp = ROMAddr[0x80] | 0x40; + SiS_SetReg(SiS_Pr->SiS_Part1Port,0x02,temp); + } else if(SiS_Pr->ChipType >= SIS_661 && SiS_Pr->ChipType < XGI_20) { + temp = ROMAddr[0x7e] | 0x40; + if(SiS_Pr->SiS_ROMNew) temp = ROMAddr[0x80] | 0x40; + SiS_SetReg(SiS_Pr->SiS_Part1Port,0x02,temp); + } + } else if(SiS_Pr->ChipType >= XGI_40) { + temp = 0x40; + if(SiS_Pr->SiS_XGIROM) temp |= ROMAddr[0x7e]; + /* Can we do this on any chipset? */ + SiS_SetReg(SiS_Pr->SiS_Part1Port,0x02,temp); + } +#endif +} + +/*********************************************/ +/* HELPER: SET VIDEO/CAPTURE REGISTERS */ +/*********************************************/ + +static void +SiS_StrangeStuff(struct SiS_Private *SiS_Pr) +{ + /* SiS65x and XGI set up some sort of "lock mode" for text + * which locks CRT2 in some way to CRT1 timing. Disable + * this here. + */ +#ifdef CONFIG_FB_SIS_315 + if((IS_SIS651) || (IS_SISM650) || + SiS_Pr->ChipType == SIS_340 || + SiS_Pr->ChipType == XGI_40) { + SiS_SetReg(SiS_Pr->SiS_VidCapt, 0x3f, 0x00); /* Fiddle with capture regs */ + SiS_SetReg(SiS_Pr->SiS_VidCapt, 0x00, 0x00); + SiS_SetReg(SiS_Pr->SiS_VidPlay, 0x00, 0x86); /* (BIOS does NOT unlock) */ + SiS_SetRegAND(SiS_Pr->SiS_VidPlay, 0x30, 0xfe); /* Fiddle with video regs */ + SiS_SetRegAND(SiS_Pr->SiS_VidPlay, 0x3f, 0xef); + } + /* !!! This does not support modes < 0x13 !!! */ +#endif +} + +/*********************************************/ +/* HELPER: SET AGP TIMING FOR SiS760 */ +/*********************************************/ + +static void +SiS_Handle760(struct SiS_Private *SiS_Pr) +{ +#ifdef CONFIG_FB_SIS_315 + unsigned int somebase; + unsigned char temp1, temp2, temp3; + + if( (SiS_Pr->ChipType != SIS_760) || + ((SiS_GetReg(SiS_Pr->SiS_P3d4, 0x5c) & 0xf8) != 0x80) || + (!(SiS_Pr->SiS_SysFlags & SF_760LFB)) || + (!(SiS_Pr->SiS_SysFlags & SF_760UMA)) ) + return; + + somebase = sisfb_read_mio_pci_word(SiS_Pr, 0x74); + somebase &= 0xffff; + + if(somebase == 0) return; + + temp3 = SiS_GetRegByte((somebase + 0x85)) & 0xb7; + + if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x31) & 0x40) { + temp1 = 0x21; + temp2 = 0x03; + temp3 |= 0x08; + } else { + temp1 = 0x25; + temp2 = 0x0b; + } + + sisfb_write_nbridge_pci_byte(SiS_Pr, 0x7e, temp1); + sisfb_write_nbridge_pci_byte(SiS_Pr, 0x8d, temp2); + + SiS_SetRegByte((somebase + 0x85), temp3); +#endif +} + +/*********************************************/ +/* SiSSetMode() */ +/*********************************************/ + +bool +SiSSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo) +{ + SISIOADDRESS BaseAddr = SiS_Pr->IOAddress; + unsigned short RealModeNo, ModeIdIndex; + unsigned char backupreg = 0; + unsigned short KeepLockReg; + + SiS_Pr->UseCustomMode = false; + SiS_Pr->CRT1UsesCustomMode = false; + + SiS_Pr->SiS_flag_clearbuffer = 0; + + if(SiS_Pr->UseCustomMode) { + ModeNo = 0xfe; + } else { + if(!(ModeNo & 0x80)) SiS_Pr->SiS_flag_clearbuffer = 1; + ModeNo &= 0x7f; + } + + /* Don't use FSTN mode for CRT1 */ + RealModeNo = ModeNo; + if(ModeNo == 0x5b) ModeNo = 0x56; + + SiSInitPtr(SiS_Pr); + SiSRegInit(SiS_Pr, BaseAddr); + SiS_GetSysFlags(SiS_Pr); + + SiS_Pr->SiS_VGAINFO = 0x11; + + KeepLockReg = SiS_GetReg(SiS_Pr->SiS_P3c4,0x05); + SiS_SetReg(SiS_Pr->SiS_P3c4,0x05,0x86); + + SiSInitPCIetc(SiS_Pr); + SiSSetLVDSetc(SiS_Pr); + SiSDetermineROMUsage(SiS_Pr); + + SiS_UnLockCRT2(SiS_Pr); + + if(!SiS_Pr->UseCustomMode) { + if(!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex))) return false; + } else { + ModeIdIndex = 0; + } + + SiS_GetVBType(SiS_Pr); + + /* Init/restore some VB registers */ + SiS_InitVB(SiS_Pr); + if(SiS_Pr->SiS_VBType & VB_SIS30xBLV) { + if(SiS_Pr->ChipType >= SIS_315H) { + SiS_ResetVB(SiS_Pr); + SiS_SetRegOR(SiS_Pr->SiS_P3c4,0x32,0x10); + SiS_SetRegOR(SiS_Pr->SiS_Part2Port,0x00,0x0c); + backupreg = SiS_GetReg(SiS_Pr->SiS_P3d4,0x38); + } else { + backupreg = SiS_GetReg(SiS_Pr->SiS_P3d4,0x35); + } + } + + /* Get VB information (connectors, connected devices) */ + SiS_GetVBInfo(SiS_Pr, ModeNo, ModeIdIndex, (SiS_Pr->UseCustomMode) ? 0 : 1); + SiS_SetYPbPr(SiS_Pr); + SiS_SetTVMode(SiS_Pr, ModeNo, ModeIdIndex); + SiS_GetLCDResInfo(SiS_Pr, ModeNo, ModeIdIndex); + SiS_SetLowModeTest(SiS_Pr, ModeNo); + + /* Check memory size (kernel framebuffer driver only) */ + if(!SiS_CheckMemorySize(SiS_Pr, ModeNo, ModeIdIndex)) { + return false; + } + + SiS_OpenCRTC(SiS_Pr); + + if(SiS_Pr->UseCustomMode) { + SiS_Pr->CRT1UsesCustomMode = true; + SiS_Pr->CSRClock_CRT1 = SiS_Pr->CSRClock; + SiS_Pr->CModeFlag_CRT1 = SiS_Pr->CModeFlag; + } else { + SiS_Pr->CRT1UsesCustomMode = false; + } + + /* Set mode on CRT1 */ + if( (SiS_Pr->SiS_VBInfo & (SetSimuScanMode | SetCRT2ToLCDA)) || + (!(SiS_Pr->SiS_VBInfo & SwitchCRT2)) ) { + SiS_SetCRT1Group(SiS_Pr, ModeNo, ModeIdIndex); + } + + /* Set mode on CRT2 */ + if(SiS_Pr->SiS_VBInfo & (SetSimuScanMode | SwitchCRT2 | SetCRT2ToLCDA)) { + if( (SiS_Pr->SiS_VBType & VB_SISVB) || + (SiS_Pr->SiS_IF_DEF_LVDS == 1) || + (SiS_Pr->SiS_IF_DEF_CH70xx != 0) || + (SiS_Pr->SiS_IF_DEF_TRUMPION != 0) ) { + SiS_SetCRT2Group(SiS_Pr, RealModeNo); + } + } + + SiS_HandleCRT1(SiS_Pr); + + SiS_StrangeStuff(SiS_Pr); + + SiS_DisplayOn(SiS_Pr); + SiS_SetRegByte(SiS_Pr->SiS_P3c6,0xFF); + +#ifdef CONFIG_FB_SIS_315 + if(SiS_Pr->ChipType >= SIS_315H) { + if(SiS_Pr->SiS_IF_DEF_LVDS == 1) { + if(!(SiS_IsDualEdge(SiS_Pr))) { + SiS_SetRegAND(SiS_Pr->SiS_Part1Port,0x13,0xfb); + } + } + } +#endif + + if(SiS_Pr->SiS_VBType & VB_SIS30xBLV) { + if(SiS_Pr->ChipType >= SIS_315H) { +#ifdef CONFIG_FB_SIS_315 + if(!SiS_Pr->SiS_ROMNew) { + if(SiS_IsVAMode(SiS_Pr)) { + SiS_SetRegOR(SiS_Pr->SiS_P3d4,0x35,0x01); + } else { + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x35,0xFE); + } + } + + SiS_SetReg(SiS_Pr->SiS_P3d4,0x38,backupreg); + + if((IS_SIS650) && (SiS_GetReg(SiS_Pr->SiS_P3d4,0x30) & 0xfc)) { + if((ModeNo == 0x03) || (ModeNo == 0x10)) { + SiS_SetRegOR(SiS_Pr->SiS_P3d4,0x51,0x80); + SiS_SetRegOR(SiS_Pr->SiS_P3d4,0x56,0x08); + } + } + + if(SiS_GetReg(SiS_Pr->SiS_P3d4,0x30) & SetCRT2ToLCD) { + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x38,0xfc); + } +#endif + } else if((SiS_Pr->ChipType == SIS_630) || + (SiS_Pr->ChipType == SIS_730)) { + SiS_SetReg(SiS_Pr->SiS_P3d4,0x35,backupreg); + } + } + + SiS_CloseCRTC(SiS_Pr); + + SiS_Handle760(SiS_Pr); + + /* We never lock registers in XF86 */ + if(KeepLockReg != 0xA1) SiS_SetReg(SiS_Pr->SiS_P3c4,0x05,0x00); + + return true; +} + +#ifndef GETBITSTR +#define GENBITSMASK(mask) GENMASK(1?mask,0?mask) +#define GETBITS(var,mask) (((var) & GENBITSMASK(mask)) >> (0?mask)) +#define GETBITSTR(val,from,to) ((GETBITS(val,from)) << (0?to)) +#endif + +void +SiS_CalcCRRegisters(struct SiS_Private *SiS_Pr, int depth) +{ + int x = 1; /* Fix sync */ + + SiS_Pr->CCRT1CRTC[0] = ((SiS_Pr->CHTotal >> 3) - 5) & 0xff; /* CR0 */ + SiS_Pr->CCRT1CRTC[1] = (SiS_Pr->CHDisplay >> 3) - 1; /* CR1 */ + SiS_Pr->CCRT1CRTC[2] = (SiS_Pr->CHBlankStart >> 3) - 1; /* CR2 */ + SiS_Pr->CCRT1CRTC[3] = (((SiS_Pr->CHBlankEnd >> 3) - 1) & 0x1F) | 0x80; /* CR3 */ + SiS_Pr->CCRT1CRTC[4] = (SiS_Pr->CHSyncStart >> 3) + 3; /* CR4 */ + SiS_Pr->CCRT1CRTC[5] = ((((SiS_Pr->CHBlankEnd >> 3) - 1) & 0x20) << 2) | /* CR5 */ + (((SiS_Pr->CHSyncEnd >> 3) + 3) & 0x1F); + + SiS_Pr->CCRT1CRTC[6] = (SiS_Pr->CVTotal - 2) & 0xFF; /* CR6 */ + SiS_Pr->CCRT1CRTC[7] = (((SiS_Pr->CVTotal - 2) & 0x100) >> 8) /* CR7 */ + | (((SiS_Pr->CVDisplay - 1) & 0x100) >> 7) + | (((SiS_Pr->CVSyncStart - x) & 0x100) >> 6) + | (((SiS_Pr->CVBlankStart- 1) & 0x100) >> 5) + | 0x10 + | (((SiS_Pr->CVTotal - 2) & 0x200) >> 4) + | (((SiS_Pr->CVDisplay - 1) & 0x200) >> 3) + | (((SiS_Pr->CVSyncStart - x) & 0x200) >> 2); + + SiS_Pr->CCRT1CRTC[16] = ((((SiS_Pr->CVBlankStart - 1) & 0x200) >> 4) >> 5); /* CR9 */ + + if(depth != 8) { + if(SiS_Pr->CHDisplay >= 1600) SiS_Pr->CCRT1CRTC[16] |= 0x60; /* SRE */ + else if(SiS_Pr->CHDisplay >= 640) SiS_Pr->CCRT1CRTC[16] |= 0x40; + } + + SiS_Pr->CCRT1CRTC[8] = (SiS_Pr->CVSyncStart - x) & 0xFF; /* CR10 */ + SiS_Pr->CCRT1CRTC[9] = ((SiS_Pr->CVSyncEnd - x) & 0x0F) | 0x80; /* CR11 */ + SiS_Pr->CCRT1CRTC[10] = (SiS_Pr->CVDisplay - 1) & 0xFF; /* CR12 */ + SiS_Pr->CCRT1CRTC[11] = (SiS_Pr->CVBlankStart - 1) & 0xFF; /* CR15 */ + SiS_Pr->CCRT1CRTC[12] = (SiS_Pr->CVBlankEnd - 1) & 0xFF; /* CR16 */ + + SiS_Pr->CCRT1CRTC[13] = /* SRA */ + GETBITSTR((SiS_Pr->CVTotal -2), 10:10, 0:0) | + GETBITSTR((SiS_Pr->CVDisplay -1), 10:10, 1:1) | + GETBITSTR((SiS_Pr->CVBlankStart-1), 10:10, 2:2) | + GETBITSTR((SiS_Pr->CVSyncStart -x), 10:10, 3:3) | + GETBITSTR((SiS_Pr->CVBlankEnd -1), 8:8, 4:4) | + GETBITSTR((SiS_Pr->CVSyncEnd ), 4:4, 5:5) ; + + SiS_Pr->CCRT1CRTC[14] = /* SRB */ + GETBITSTR((SiS_Pr->CHTotal >> 3) - 5, 9:8, 1:0) | + GETBITSTR((SiS_Pr->CHDisplay >> 3) - 1, 9:8, 3:2) | + GETBITSTR((SiS_Pr->CHBlankStart >> 3) - 1, 9:8, 5:4) | + GETBITSTR((SiS_Pr->CHSyncStart >> 3) + 3, 9:8, 7:6) ; + + + SiS_Pr->CCRT1CRTC[15] = /* SRC */ + GETBITSTR((SiS_Pr->CHBlankEnd >> 3) - 1, 7:6, 1:0) | + GETBITSTR((SiS_Pr->CHSyncEnd >> 3) + 3, 5:5, 2:2) ; +} + +void +SiS_CalcLCDACRT1Timing(struct SiS_Private *SiS_Pr, unsigned short ModeNo, + unsigned short ModeIdIndex) +{ + unsigned short modeflag, tempax, tempbx = 0, remaining = 0; + unsigned short VGAHDE = SiS_Pr->SiS_VGAHDE; + int i, j; + + /* 1:1 data: use data set by setcrt1crtc() */ + if(SiS_Pr->SiS_LCDInfo & LCDPass11) return; + + modeflag = SiS_GetModeFlag(SiS_Pr, ModeNo, ModeIdIndex); + + if(modeflag & HalfDCLK) VGAHDE >>= 1; + + SiS_Pr->CHDisplay = VGAHDE; + SiS_Pr->CHBlankStart = VGAHDE; + + SiS_Pr->CVDisplay = SiS_Pr->SiS_VGAVDE; + SiS_Pr->CVBlankStart = SiS_Pr->SiS_VGAVDE; + + if(SiS_Pr->ChipType < SIS_315H) { +#ifdef CONFIG_FB_SIS_300 + tempbx = SiS_Pr->SiS_VGAHT; + if(SiS_Pr->SiS_LCDInfo & DontExpandLCD) { + tempbx = SiS_Pr->PanelHT; + } + if(modeflag & HalfDCLK) tempbx >>= 1; + remaining = tempbx % 8; +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + /* OK for LCDA, LVDS */ + tempbx = SiS_Pr->PanelHT - SiS_Pr->PanelXRes; + tempax = SiS_Pr->SiS_VGAHDE; /* not /2 ! */ + if(SiS_Pr->SiS_LCDInfo & DontExpandLCD) { + tempax = SiS_Pr->PanelXRes; + } + tempbx += tempax; + if(modeflag & HalfDCLK) tempbx -= VGAHDE; +#endif + } + SiS_Pr->CHTotal = SiS_Pr->CHBlankEnd = tempbx; + + if(SiS_Pr->ChipType < SIS_315H) { +#ifdef CONFIG_FB_SIS_300 + if(SiS_Pr->SiS_VGAHDE == SiS_Pr->PanelXRes) { + SiS_Pr->CHSyncStart = SiS_Pr->SiS_VGAHDE + ((SiS_Pr->PanelHRS + 1) & ~1); + SiS_Pr->CHSyncEnd = SiS_Pr->CHSyncStart + SiS_Pr->PanelHRE; + if(modeflag & HalfDCLK) { + SiS_Pr->CHSyncStart >>= 1; + SiS_Pr->CHSyncEnd >>= 1; + } + } else if(SiS_Pr->SiS_LCDInfo & DontExpandLCD) { + tempax = (SiS_Pr->PanelXRes - SiS_Pr->SiS_VGAHDE) >> 1; + tempbx = (SiS_Pr->PanelHRS + 1) & ~1; + if(modeflag & HalfDCLK) { + tempax >>= 1; + tempbx >>= 1; + } + SiS_Pr->CHSyncStart = (VGAHDE + tempax + tempbx + 7) & ~7; + tempax = SiS_Pr->PanelHRE + 7; + if(modeflag & HalfDCLK) tempax >>= 1; + SiS_Pr->CHSyncEnd = (SiS_Pr->CHSyncStart + tempax) & ~7; + } else { + SiS_Pr->CHSyncStart = SiS_Pr->SiS_VGAHDE; + if(modeflag & HalfDCLK) { + SiS_Pr->CHSyncStart >>= 1; + tempax = ((SiS_Pr->CHTotal - SiS_Pr->CHSyncStart) / 3) << 1; + SiS_Pr->CHSyncEnd = SiS_Pr->CHSyncStart + tempax; + } else { + SiS_Pr->CHSyncEnd = (SiS_Pr->CHSyncStart + (SiS_Pr->CHTotal / 10) + 7) & ~7; + SiS_Pr->CHSyncStart += 8; + } + } +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + tempax = VGAHDE; + if(SiS_Pr->SiS_LCDInfo & DontExpandLCD) { + tempbx = SiS_Pr->PanelXRes; + if(modeflag & HalfDCLK) tempbx >>= 1; + tempax += ((tempbx - tempax) >> 1); + } + tempax += SiS_Pr->PanelHRS; + SiS_Pr->CHSyncStart = tempax; + tempax += SiS_Pr->PanelHRE; + SiS_Pr->CHSyncEnd = tempax; +#endif + } + + tempbx = SiS_Pr->PanelVT - SiS_Pr->PanelYRes; + tempax = SiS_Pr->SiS_VGAVDE; + if(SiS_Pr->SiS_LCDInfo & DontExpandLCD) { + tempax = SiS_Pr->PanelYRes; + } else if(SiS_Pr->ChipType < SIS_315H) { +#ifdef CONFIG_FB_SIS_300 + /* Stupid hack for 640x400/320x200 */ + if(SiS_Pr->SiS_LCDResInfo == Panel_1024x768) { + if((tempax + tempbx) == 438) tempbx += 16; + } else if((SiS_Pr->SiS_LCDResInfo == Panel_800x600) || + (SiS_Pr->SiS_LCDResInfo == Panel_1024x600)) { + tempax = 0; + tempbx = SiS_Pr->SiS_VGAVT; + } +#endif + } + SiS_Pr->CVTotal = SiS_Pr->CVBlankEnd = tempbx + tempax; + + tempax = SiS_Pr->SiS_VGAVDE; + if(SiS_Pr->SiS_LCDInfo & DontExpandLCD) { + tempax += (SiS_Pr->PanelYRes - tempax) >> 1; + } + tempax += SiS_Pr->PanelVRS; + SiS_Pr->CVSyncStart = tempax; + tempax += SiS_Pr->PanelVRE; + SiS_Pr->CVSyncEnd = tempax; + if(SiS_Pr->ChipType < SIS_315H) { + SiS_Pr->CVSyncStart--; + SiS_Pr->CVSyncEnd--; + } + + SiS_CalcCRRegisters(SiS_Pr, 8); + SiS_Pr->CCRT1CRTC[15] &= ~0xF8; + SiS_Pr->CCRT1CRTC[15] |= (remaining << 4); + SiS_Pr->CCRT1CRTC[16] &= ~0xE0; + + SiS_SetRegAND(SiS_Pr->SiS_P3d4,0x11,0x7f); + + for(i = 0, j = 0; i <= 7; i++, j++) { + SiS_SetReg(SiS_Pr->SiS_P3d4,j,SiS_Pr->CCRT1CRTC[i]); + } + for(j = 0x10; i <= 10; i++, j++) { + SiS_SetReg(SiS_Pr->SiS_P3d4,j,SiS_Pr->CCRT1CRTC[i]); + } + for(j = 0x15; i <= 12; i++, j++) { + SiS_SetReg(SiS_Pr->SiS_P3d4,j,SiS_Pr->CCRT1CRTC[i]); + } + for(j = 0x0A; i <= 15; i++, j++) { + SiS_SetReg(SiS_Pr->SiS_P3c4,j,SiS_Pr->CCRT1CRTC[i]); + } + + tempax = SiS_Pr->CCRT1CRTC[16] & 0xE0; + SiS_SetRegANDOR(SiS_Pr->SiS_P3c4,0x0E,0x1F,tempax); + + tempax = (SiS_Pr->CCRT1CRTC[16] & 0x01) << 5; + if(modeflag & DoubleScanMode) tempax |= 0x80; + SiS_SetRegANDOR(SiS_Pr->SiS_P3d4,0x09,0x5F,tempax); + +} + +void +SiS_Generic_ConvertCRData(struct SiS_Private *SiS_Pr, unsigned char *crdata, + int xres, int yres, + struct fb_var_screeninfo *var, bool writeres +) +{ + unsigned short HRE, HBE, HRS, HDE; + unsigned short VRE, VBE, VRS, VDE; + unsigned char sr_data, cr_data; + int B, C, D, E, F, temp; + + sr_data = crdata[14]; + + /* Horizontal display enable end */ + HDE = crdata[1] | ((unsigned short)(sr_data & 0x0C) << 6); + E = HDE + 1; + + /* Horizontal retrace (=sync) start */ + HRS = crdata[4] | ((unsigned short)(sr_data & 0xC0) << 2); + F = HRS - E - 3; + + sr_data = crdata[15]; + cr_data = crdata[5]; + + /* Horizontal blank end */ + HBE = (crdata[3] & 0x1f) | + ((unsigned short)(cr_data & 0x80) >> 2) | + ((unsigned short)(sr_data & 0x03) << 6); + + /* Horizontal retrace (=sync) end */ + HRE = (cr_data & 0x1f) | ((sr_data & 0x04) << 3); + + temp = HBE - ((E - 1) & 255); + B = (temp > 0) ? temp : (temp + 256); + + temp = HRE - ((E + F + 3) & 63); + C = (temp > 0) ? temp : (temp + 64); + + D = B - F - C; + + if(writeres) var->xres = xres = E * 8; + var->left_margin = D * 8; + var->right_margin = F * 8; + var->hsync_len = C * 8; + + /* Vertical */ + sr_data = crdata[13]; + cr_data = crdata[7]; + + /* Vertical display enable end */ + VDE = crdata[10] | + ((unsigned short)(cr_data & 0x02) << 7) | + ((unsigned short)(cr_data & 0x40) << 3) | + ((unsigned short)(sr_data & 0x02) << 9); + E = VDE + 1; + + /* Vertical retrace (=sync) start */ + VRS = crdata[8] | + ((unsigned short)(cr_data & 0x04) << 6) | + ((unsigned short)(cr_data & 0x80) << 2) | + ((unsigned short)(sr_data & 0x08) << 7); + F = VRS + 1 - E; + + /* Vertical blank end */ + VBE = crdata[12] | ((unsigned short)(sr_data & 0x10) << 4); + temp = VBE - ((E - 1) & 511); + B = (temp > 0) ? temp : (temp + 512); + + /* Vertical retrace (=sync) end */ + VRE = (crdata[9] & 0x0f) | ((sr_data & 0x20) >> 1); + temp = VRE - ((E + F - 1) & 31); + C = (temp > 0) ? temp : (temp + 32); + + D = B - F - C; + + if(writeres) var->yres = yres = E; + var->upper_margin = D; + var->lower_margin = F; + var->vsync_len = C; + + if((xres == 320) && ((yres == 200) || (yres == 240))) { + /* Terrible hack, but correct CRTC data for + * these modes only produces a black screen... + * (HRE is 0, leading into a too large C and + * a negative D. The CRT controller does not + * seem to like correcting HRE to 50) + */ + var->left_margin = (400 - 376); + var->right_margin = (328 - 320); + var->hsync_len = (376 - 328); + + } + +} + + + + |