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/*
* Copyright 2000 by Richard A. Hecker, California, United States
*
* 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 Richard Hecker not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Richard Hecker makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* RICHARD HECKER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL RICHARD HECKER 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: Richard Hecker, hecker@cat.dfrc.nasa.gov
* Re-written for XFree86 v4.0
* Previous driver (pre-XFree86 v4.0) by
* Annius V. Groenink (A.V.Groenink@zfc.nl, avg@cwi.nl),
* Dirk H. Hohndel (hohndel@suse.de),
* Portions: the GGI project & confidential CYRIX databooks.
*/
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/cyrix/cyrix_bank.c,v 1.1 2000/02/13 00:56:10 dawes Exp $ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define PSZ 8
/* All drivers should typically include these */
#include "xf86.h"
#include "xf86_OSproc.h"
/* Everything using inb/outb, etc needs "compiler.h" */
#include "compiler.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"
/* Driver specific headers */
#include "cyrix.h"
int
CYRIXSetRead(ScreenPtr pScreen, int bank)
{
outw(0x3D6, ((((bank << 3) & 0xFF) << 8) | 0x10));
return 0;
}
int
CYRIXSetWrite(ScreenPtr pScreen, int bank)
{
outw(0x3D6, ((((bank << 3) & 0xFF) << 8) | 0x11));
return 0;
}
int
CYRIXSetReadWrite(ScreenPtr pScreen, int bank)
{
outw(0x3D6, ((((bank << 3) & 0xFF) << 8) | 0x10));
outw(0x3D6, ((((bank << 3) & 0xFF) << 8) | 0x11));
return 0;
}
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