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/*
* Video bridge detection and configuration for 300, 315 and 330 series
*
* Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
*
* 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 EXPRESSED 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>
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xf86.h"
#include "compiler.h"
#include "xf86PciInfo.h"
#include "xgi.h"
#include "xgi_regs.h"
#include "xgi_vb.h"
#include "xgi_dac.h"
#include "vb_def.h"
extern unsigned char XGI_GetSetBIOSScratch(ScrnInfoPtr pScrn, USHORT offset, unsigned char value);
static Bool
TestDDC1(ScrnInfoPtr pScrn)
{
/* XGIPtr pXGI = XGIPTR(pScrn);
unsigned short old; */
int count = 48;
/*
old = XGI_ReadDDC1Bit(pXGI->XGI_Pr);
do {
if(old != XGI_ReadDDC1Bit(pXGI->XGI_Pr)) break;
} while(count--);
*/
return (count == -1) ? FALSE : TRUE;
}
static int
XGI_XGIDetectCRT1(ScrnInfoPtr pScrn)
{
XGIPtr pXGI = XGIPTR(pScrn);
unsigned short temp = 0xffff;
unsigned char SR1F, CR17;
int i, ret = 0;
Bool mustwait = FALSE;
inXGIIDXREG(XGISR,0x1F,SR1F);
orXGIIDXREG(XGISR,0x1F,0x04);
andXGIIDXREG(XGISR,0x1F,0x3F);
if(SR1F & 0xc0) mustwait = TRUE;
inXGIIDXREG(XGICR,0x17,CR17);
CR17 &= 0x80;
if(!CR17) {
orXGIIDXREG(XGICR,0x17,0x80);
mustwait = TRUE;
outXGIIDXREG(XGISR, 0x00, 0x01);
outXGIIDXREG(XGISR, 0x00, 0x03);
}
if(mustwait) {
for(i=0; i < 10; i++) XGI_WaitBeginRetrace(pXGI->RelIO);
}
if((temp == 0) || (temp == 0xffff)) {
if(TestDDC1(pScrn)) temp = 1;
}
if((temp) && (temp != 0xffff)) {
orXGIIDXREG(XGICR,0x32,0x20);
ret = 1;
}
setXGIIDXREG(XGICR,0x17,0x7F,CR17);
outXGIIDXREG(XGISR,0x1F,SR1F);
return ret;
}
/* Detect CRT1 */
void XGICRT1PreInit(ScrnInfoPtr pScrn)
{
XGIPtr pXGI = XGIPTR(pScrn);
unsigned char CR32;
unsigned char CRT1Detected;
if (!(pXGI->XGI_Pr->VBType & VB_XGIVB) || IS_DUAL_HEAD(pXGI)
#ifdef XGIMERGED
|| ((pXGI->MergedFB) && (!(pXGI->MergedFBAuto)))
#endif
) {
pXGI->CRT1off = 0;
return;
}
inXGIIDXREG(XGICR, 0x32, CR32);
CRT1Detected = (CR32 & 0x20) ? 1 : XGI_XGIDetectCRT1(pScrn);
if (pXGI->CRT1off == -1) {
const int OtherDevices = ((CR32 & 0x5F) != 0);
/* If no CRT1 detected and other devices exist, switch CRT1 off.
* Otherwise, switch it on.
*/
pXGI->CRT1off = (!CRT1Detected && OtherDevices) ? 1 : 0;
}
xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
"%sCRT1 (VGA) connection detected\n",
CRT1Detected ? "" : "No ");
}
/* Detect CRT2-LCD and LCD size */
void XGILCDPreInit(ScrnInfoPtr pScrn)
{
XGIPtr pXGI = XGIPTR(pScrn);
unsigned char CR32;
pXGI->LCDwidth = 0;
/* if(!(pXGI->XGI_Pr->VBType & VB_XGIVB)) return; */
inXGIIDXREG(XGICR, 0x32, CR32);
if(CR32 & 0x08) pXGI->VBFlags |= CRT2_LCD;
if( pXGI->xgi_HwDevExt.jChipType == XG21)
{
pXGI->VBFlags |= CRT2_LCD;
CR32 |= 0x08 ;
outXGIIDXREG(XGICR, 0x32, CR32);
}
/* If no panel has been detected by the BIOS during booting,
* we try to detect it ourselves at this point. We do that
* if forcecrt2redetection was given, too.
* This is useful on machines with DVI connectors where the
* panel was connected after booting. This is only supported
* on the 315/330 series and the 301/30xB/C bridge (because the
* 30xLV don't seem to have a DDC port and operate only LVDS
* panels which mostly don't support DDC). We only do this if
* there was no secondary VGA detected by the BIOS, because LCD
* and VGA2 share the same DDC channel and might be misdetected
* as the wrong type (especially if the LCD panel only supports
* EDID Version 1).
*
* By default, CRT2 redetection is forced since 12/09/2003, as
* I encountered numerous panels which deliver more or less
* bogus DDC data confusing the BIOS. Since our DDC detection
* is waaaay better, we prefer it instead of the primitive
* and buggy BIOS method.
*/
if (!IS_DUAL_HEAD(pXGI) || !IS_SECOND_HEAD(pXGI)) {
}
}
/* Detect CRT2-TV connector type and PAL/NTSC flag */
void XGITVPreInit(ScrnInfoPtr pScrn)
{
XGIPtr pXGI = XGIPTR(pScrn);
unsigned char SR16, SR38, CR32, CR35=0, CR38=0, CR39;
int temp = 0;
if(!(pXGI->XGI_Pr->VBType & VB_XGIVB)) return;
inXGIIDXREG(XGICR, 0x32, CR32);
inXGIIDXREG(XGICR, 0x35, CR35);
inXGIIDXREG(XGISR, 0x16, SR16);
inXGIIDXREG(XGISR, 0x38, SR38);
if(temp) {
inXGIIDXREG(XGICR, temp, CR38);
}
#ifdef TWDEBUG
xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
"(vb.c: CR32=%02x SR16=%02x SR38=%02x)\n",
CR32, SR16, SR38);
#endif
if(CR32 & 0x47) pXGI->VBFlags |= CRT2_TV;
if(pXGI->XGI_SD_Flags & XGI_SD_SUPPORTYPBPR) {
if(CR32 & 0x80) pXGI->VBFlags |= CRT2_TV;
} else {
CR32 &= 0x7f;
}
if(CR32 & 0x01)
pXGI->VBFlags |= TV_AVIDEO;
else if(CR32 & 0x02)
pXGI->VBFlags |= TV_SVIDEO;
else if(CR32 & 0x04)
pXGI->VBFlags |= TV_SCART;
else if((CR32 & 0x40) && (pXGI->XGI_SD_Flags & XGI_SD_SUPPORTHIVISION))
pXGI->VBFlags |= (TV_HIVISION | TV_PAL);
else if((CR32 & 0x80) && (pXGI->XGI_SD_Flags & XGI_SD_SUPPORTYPBPR)) {
pXGI->VBFlags |= TV_YPBPR;
if(pXGI->XGI_SD_Flags & XGI_SD_SUPPORTYPBPR) {
if(CR38 & 0x08) {
switch(CR38 & 0x30) {
case 0x10: pXGI->VBFlags |= TV_YPBPR525P; break;
case 0x20: pXGI->VBFlags |= TV_YPBPR750P; break;
case 0x30: pXGI->VBFlags |= TV_YPBPR1080I; break;
default: pXGI->VBFlags |= TV_YPBPR525I;
}
} else pXGI->VBFlags |= TV_YPBPR525I;
if(pXGI->XGI_SD_Flags & XGI_SD_SUPPORTYPBPRAR) {
inXGIIDXREG(XGICR,0x3B,CR39);
CR39 &= 0x03;
if(CR39 == 0x00) pXGI->VBFlags |= TV_YPBPR43LB;
else if(CR39 == 0x01) pXGI->VBFlags |= TV_YPBPR169;
else if(CR39 == 0x03) pXGI->VBFlags |= TV_YPBPR43;
}
}
}
if(pXGI->VBFlags & (TV_SCART|TV_SVIDEO|TV_AVIDEO)) {
xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected default TV standard %s\n",
(pXGI->VBFlags & TV_NTSC) ?
((pXGI->VBFlags & TV_NTSCJ) ? "NTSCJ" : "NTSC") :
((pXGI->VBFlags & TV_PALM) ? "PALM" :
((pXGI->VBFlags & TV_PALN) ? "PALN" : "PAL")));
}
if(pXGI->VBFlags & TV_HIVISION) {
xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "BIOS reports HiVision TV\n");
}
if(pXGI->VBFlags & TV_YPBPR) {
xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected YPbPr TV (by default %s)\n",
(pXGI->VBFlags & TV_YPBPR525I) ? "480i" :
((pXGI->VBFlags & TV_YPBPR525P) ? "480p" :
((pXGI->VBFlags & TV_YPBPR750P) ? "720p" : "1080i")));
}
}
/* Detect CRT2 */
void XGICRT2PreInit(ScrnInfoPtr pScrn)
{
XGIPtr pXGI = XGIPTR(pScrn);
unsigned char CR32;
unsigned char CRT2Detected = 0;
inXGIIDXREG(XGICR, 0x32, CR32);
if(CR32 & 0x10)
{
pXGI->VBFlags =pXGI->VBFlags | CRT2_VGA;
CRT2Detected = 1;
}
xf86DrvMsg(pScrn->scrnIndex, X_PROBED,"%sCRT2 (VGA) connection detected\n", CRT2Detected ? "" : "No ");
}
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