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c289f4de8e
linux/drivers/video/fbdev/sis/init.c
Rustam Subkhankulov 3eb8fccc24 video: fbdev: sis: fix typos in SiS_GetModeID() 
The second operand of a '&&' operator has no impact on expression
result for cases 400 and 512 in SiS_GetModeID().

Judging by the logic and the names of the variables, in both cases a
typo was made.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Rustam Subkhankulov <subkhankulov@ispras.ru>
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-26 09:16:38 +02:00

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/* $XFree86$ */
/* $XdotOrg$ */
/*
* 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);
}
}
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