90 lines
2.8 KiB
C
90 lines
2.8 KiB
C
/*
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* Copyright 1997, 1998 by UCHIYAMA Yasushi
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of UCHIYAMA Yasushi not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. UCHIYAMA Yasushi makes no representations
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* about the suitability of this software for any purpose. It is provided
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* "as is" without express or implied warranty.
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*
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* UCHIYAMA YASUSHI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL UCHIYAMA YASUSHI BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <mach.h>
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#include <device/device.h>
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#include <mach/machine/mach_i386.h>
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#include <hurd.h>
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#include <errno.h>
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#include <X11/X.h>
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#include "input.h"
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#include "scrnintstr.h"
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#include "xf86.h"
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#include "xf86Priv.h"
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#include "xf86_os_support.h"
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#include "xf86_OSlib.h"
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/**************************************************************************
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* Video Memory Mapping section
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***************************************************************************/
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/**************************************************************************
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* I/O Permissions section
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***************************************************************************/
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/*
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* Due to conflicts with "compiler.h", don't rely on <sys/io.h> to declare
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* this.
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*/
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extern int ioperm(unsigned long __from, unsigned long __num, int __turn_on);
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Bool
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xf86EnableIO()
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{
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if (ioperm(0, 0x10000, 1)) {
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FatalError("xf86EnableIO: ioperm() failed (%s)\n", strerror(errno));
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return FALSE;
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}
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#if 0
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/*
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* Trapping disabled for now, as some VBIOSes (mga-g450 notably) use these
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* ports, and the int10 wrapper is not emulating them. (Note that it's
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* effectively what happens in the Linux variant too, as iopl() is used
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* there, making the ioperm() meaningless.)
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*
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* Reenable this when int10 gets fixed. */
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ioperm(0x40, 4, 0); /* trap access to the timer chip */
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ioperm(0x60, 4, 0); /* trap access to the keyboard controller */
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#endif
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return TRUE;
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}
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void
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xf86DisableIO()
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{
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ioperm(0, 0x10000, 0);
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return;
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}
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void
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xf86OSInitVidMem(VidMemInfoPtr pVidMem)
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{
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pVidMem->initialised = TRUE;
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}
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