233 lines
7.0 KiB
C
233 lines
7.0 KiB
C
/*
|
|
* SiS 300/540/630[S]/730[S]
|
|
* SiS 315[E|PRO]/550/[M]65x/[M]66x[F|M|G]X/[M]74x[GX]/330/[M]76x[GX]
|
|
* XGI V3XT/V5/V8, Z7
|
|
* frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3
|
|
*
|
|
* Linux kernel specific extensions to init.c/init301.c
|
|
*
|
|
* Copyright (C) 2001-2005 Thomas Winischhofer, Vienna, Austria.
|
|
*
|
|
* 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
|
|
*
|
|
* Author: Thomas Winischhofer <thomas@winischhofer.net>
|
|
*/
|
|
|
|
#include "osdef.h"
|
|
#include "initdef.h"
|
|
#include "vgatypes.h"
|
|
#include "vstruct.h"
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/fb.h>
|
|
|
|
int sisfb_mode_rate_to_dclock(struct SiS_Private *SiS_Pr,
|
|
unsigned char modeno, unsigned char rateindex);
|
|
int sisfb_mode_rate_to_ddata(struct SiS_Private *SiS_Pr, unsigned char modeno,
|
|
unsigned char rateindex, struct fb_var_screeninfo *var);
|
|
bool sisfb_gettotalfrommode(struct SiS_Private *SiS_Pr, unsigned char modeno,
|
|
int *htotal, int *vtotal, unsigned char rateindex);
|
|
|
|
extern bool SiSInitPtr(struct SiS_Private *SiS_Pr);
|
|
extern bool SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo,
|
|
unsigned short *ModeIdIndex);
|
|
extern void SiS_Generic_ConvertCRData(struct SiS_Private *SiS_Pr, unsigned char *crdata,
|
|
int xres, int yres, struct fb_var_screeninfo *var, bool writeres);
|
|
|
|
int
|
|
sisfb_mode_rate_to_dclock(struct SiS_Private *SiS_Pr, unsigned char modeno,
|
|
unsigned char rateindex)
|
|
{
|
|
unsigned short ModeNo = modeno;
|
|
unsigned short ModeIdIndex = 0, ClockIndex = 0;
|
|
unsigned short RRTI = 0;
|
|
int Clock;
|
|
|
|
if(!SiSInitPtr(SiS_Pr)) return 65000;
|
|
|
|
if(rateindex > 0) rateindex--;
|
|
|
|
#ifdef SIS315H
|
|
switch(ModeNo) {
|
|
case 0x5a: ModeNo = 0x50; break;
|
|
case 0x5b: ModeNo = 0x56;
|
|
}
|
|
#endif
|
|
|
|
if(!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex))) {;
|
|
printk(KERN_ERR "Could not find mode %x\n", ModeNo);
|
|
return 65000;
|
|
}
|
|
|
|
RRTI = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex;
|
|
|
|
if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & HaveWideTiming) {
|
|
if(SiS_Pr->SiS_UseWide == 1) {
|
|
/* Wide screen: Ignore rateindex */
|
|
ClockIndex = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRTVCLK_WIDE;
|
|
} else {
|
|
RRTI += rateindex;
|
|
ClockIndex = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRTVCLK_NORM;
|
|
}
|
|
} else {
|
|
RRTI += rateindex;
|
|
ClockIndex = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRTVCLK;
|
|
}
|
|
|
|
Clock = SiS_Pr->SiS_VCLKData[ClockIndex].CLOCK * 1000;
|
|
|
|
return Clock;
|
|
}
|
|
|
|
int
|
|
sisfb_mode_rate_to_ddata(struct SiS_Private *SiS_Pr, unsigned char modeno,
|
|
unsigned char rateindex, struct fb_var_screeninfo *var)
|
|
{
|
|
unsigned short ModeNo = modeno;
|
|
unsigned short ModeIdIndex = 0, index = 0, RRTI = 0;
|
|
int j;
|
|
|
|
if(!SiSInitPtr(SiS_Pr)) return 0;
|
|
|
|
if(rateindex > 0) rateindex--;
|
|
|
|
#ifdef SIS315H
|
|
switch(ModeNo) {
|
|
case 0x5a: ModeNo = 0x50; break;
|
|
case 0x5b: ModeNo = 0x56;
|
|
}
|
|
#endif
|
|
|
|
if(!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex))) return 0;
|
|
|
|
RRTI = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex;
|
|
if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & HaveWideTiming) {
|
|
if(SiS_Pr->SiS_UseWide == 1) {
|
|
/* Wide screen: Ignore rateindex */
|
|
index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC_WIDE;
|
|
} else {
|
|
RRTI += rateindex;
|
|
index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC_NORM;
|
|
}
|
|
} else {
|
|
RRTI += rateindex;
|
|
index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC;
|
|
}
|
|
|
|
SiS_Generic_ConvertCRData(SiS_Pr,
|
|
(unsigned char *)&SiS_Pr->SiS_CRT1Table[index].CR[0],
|
|
SiS_Pr->SiS_RefIndex[RRTI].XRes,
|
|
SiS_Pr->SiS_RefIndex[RRTI].YRes,
|
|
var, false);
|
|
|
|
if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & 0x8000)
|
|
var->sync &= ~FB_SYNC_VERT_HIGH_ACT;
|
|
else
|
|
var->sync |= FB_SYNC_VERT_HIGH_ACT;
|
|
|
|
if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & 0x4000)
|
|
var->sync &= ~FB_SYNC_HOR_HIGH_ACT;
|
|
else
|
|
var->sync |= FB_SYNC_HOR_HIGH_ACT;
|
|
|
|
var->vmode = FB_VMODE_NONINTERLACED;
|
|
if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & 0x0080)
|
|
var->vmode = FB_VMODE_INTERLACED;
|
|
else {
|
|
j = 0;
|
|
while(SiS_Pr->SiS_EModeIDTable[j].Ext_ModeID != 0xff) {
|
|
if(SiS_Pr->SiS_EModeIDTable[j].Ext_ModeID ==
|
|
SiS_Pr->SiS_RefIndex[RRTI].ModeID) {
|
|
if(SiS_Pr->SiS_EModeIDTable[j].Ext_ModeFlag & DoubleScanMode) {
|
|
var->vmode = FB_VMODE_DOUBLE;
|
|
}
|
|
break;
|
|
}
|
|
j++;
|
|
}
|
|
}
|
|
|
|
if((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
|
|
#if 0 /* Do this? */
|
|
var->upper_margin <<= 1;
|
|
var->lower_margin <<= 1;
|
|
var->vsync_len <<= 1;
|
|
#endif
|
|
} else if((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
|
|
var->upper_margin >>= 1;
|
|
var->lower_margin >>= 1;
|
|
var->vsync_len >>= 1;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
bool
|
|
sisfb_gettotalfrommode(struct SiS_Private *SiS_Pr, unsigned char modeno, int *htotal,
|
|
int *vtotal, unsigned char rateindex)
|
|
{
|
|
unsigned short ModeNo = modeno;
|
|
unsigned short ModeIdIndex = 0, CRT1Index = 0;
|
|
unsigned short RRTI = 0;
|
|
unsigned char sr_data, cr_data, cr_data2;
|
|
|
|
if(!SiSInitPtr(SiS_Pr)) return false;
|
|
|
|
if(rateindex > 0) rateindex--;
|
|
|
|
#ifdef SIS315H
|
|
switch(ModeNo) {
|
|
case 0x5a: ModeNo = 0x50; break;
|
|
case 0x5b: ModeNo = 0x56;
|
|
}
|
|
#endif
|
|
|
|
if(!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex))) return false;
|
|
|
|
RRTI = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex;
|
|
if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & HaveWideTiming) {
|
|
if(SiS_Pr->SiS_UseWide == 1) {
|
|
/* Wide screen: Ignore rateindex */
|
|
CRT1Index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC_WIDE;
|
|
} else {
|
|
RRTI += rateindex;
|
|
CRT1Index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC_NORM;
|
|
}
|
|
} else {
|
|
RRTI += rateindex;
|
|
CRT1Index = SiS_Pr->SiS_RefIndex[RRTI].Ext_CRT1CRTC;
|
|
}
|
|
|
|
sr_data = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[14];
|
|
cr_data = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[0];
|
|
*htotal = (((cr_data & 0xff) | ((unsigned short) (sr_data & 0x03) << 8)) + 5) * 8;
|
|
|
|
sr_data = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[13];
|
|
cr_data = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[6];
|
|
cr_data2 = SiS_Pr->SiS_CRT1Table[CRT1Index].CR[7];
|
|
*vtotal = ((cr_data & 0xFF) |
|
|
((unsigned short)(cr_data2 & 0x01) << 8) |
|
|
((unsigned short)(cr_data2 & 0x20) << 4) |
|
|
((unsigned short)(sr_data & 0x01) << 10)) + 2;
|
|
|
|
if(SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag & InterlaceMode)
|
|
*vtotal *= 2;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|