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/*
* Copyright 1992-2003 by Alan Hourihane, North Wales, UK.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Author: Alan Hourihane, alanh@fairlite.demon.co.uk
*/
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/trident/trident_bank.c,v 1.4 2000/12/07 16:48:04 alanh Exp $ */
/* All drivers should typically include these */
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86_ansic.h"
/* Drivers for PCI hardware need this */
#include "xf86PciInfo.h"
/* Drivers that need to access the PCI config space directly need this */
#include "xf86Pci.h"
#include "compiler.h"
#include "trident.h"
#include "trident_regs.h"
int TVGA8900SetRead(ScreenPtr pScreen, int bank)
{
ScrnInfoPtr pScrn;
TRIDENTPtr pTrident;
pScrn = xf86Screens[pScreen->myNum];
pTrident = TRIDENTPTR(pScrn);
OUTW(0x3c4, 0xC000 | (((bank & 0x3f) ^ 0x02)<<8)|0x0E);
return 0;
}
int TGUISetRead(ScreenPtr pScreen, int bank)
{
ScrnInfoPtr pScrn;
TRIDENTPtr pTrident;
pScrn = xf86Screens[pScreen->myNum];
pTrident = TRIDENTPTR(pScrn);
OUTB(0x3d9, bank & 0xff);
return 0;
}
int TVGA8900SetWrite(ScreenPtr pScreen, int bank)
{
ScrnInfoPtr pScrn;
TRIDENTPtr pTrident;
pScrn = xf86Screens[pScreen->myNum];
pTrident = TRIDENTPTR(pScrn);
OUTW(0x3c4, 0xC000 | (((bank & 0x3f) ^ 0x02)<<8)|0x0E);
return 0;
}
int TGUISetWrite(ScreenPtr pScreen, int bank)
{
ScrnInfoPtr pScrn;
TRIDENTPtr pTrident;
pScrn = xf86Screens[pScreen->myNum];
pTrident = TRIDENTPTR(pScrn);
OUTB(0x3d8, bank & 0xff);
return 0;
}
int TVGA8900SetReadWrite(ScreenPtr pScreen, int bank)
{
ScrnInfoPtr pScrn;
TRIDENTPtr pTrident;
pScrn = xf86Screens[pScreen->myNum];
pTrident = TRIDENTPTR(pScrn);
OUTW(0x3c4, 0xC000 | (((bank & 0x3f) ^ 0x02)<<8)|0x0E);
return 0;
}
int TGUISetReadWrite(ScreenPtr pScreen, int bank)
{
ScrnInfoPtr pScrn;
TRIDENTPtr pTrident;
pScrn = xf86Screens[pScreen->myNum];
pTrident = TRIDENTPTR(pScrn);
OUTB(0x3d8, bank & 0xff);
OUTB(0x3d9, bank & 0xff);
return 0;
}
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