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/*
* Copyright 1992 by Rich Murphey <Rich@Rice.edu>
* Copyright 1993 by David Wexelblat <dwex@goblin.org>
*
* 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 names of Rich Murphey and David Wexelblat
* not be used in advertising or publicity pertaining to distribution of
* the software without specific, written prior permission. Rich Murphey and
* David Wexelblat make no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT 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.
*
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86_OSlib.h"
#include "xf86OSpriv.h"
#include "bus/Pci.h"
/***************************************************************************/
/* Video Memory Mapping section */
/***************************************************************************/
#ifdef __OpenBSD__
#define DEV_MEM "/dev/xf86"
#endif
Bool xf86EnableIO(void);
void xf86DisableIO(void);
void
xf86OSInitVidMem(VidMemInfoPtr pVidMem)
{
pVidMem->initialised = TRUE;
xf86EnableIO();
}
volatile unsigned char *ioBase = MAP_FAILED;
Bool
xf86EnableIO()
{
int fd = xf86Info.consoleFd;
xf86MsgVerb(X_WARNING, 3, "xf86EnableIO %d\n", fd);
if (ioBase == MAP_FAILED) {
ioBase = mmap(NULL, 0x10000, PROT_READ | PROT_WRITE, MAP_SHARED, fd,
0xf2000000);
xf86MsgVerb(X_INFO, 3, "xf86EnableIO: %08x\n", ioBase);
if (ioBase == MAP_FAILED) {
xf86MsgVerb(X_WARNING, 3, "Can't map IO space!\n");
return FALSE;
}
}
return TRUE;
}
void
xf86DisableIO()
{
if (ioBase != MAP_FAILED) {
munmap(__UNVOLATILE(ioBase), 0x10000);
ioBase = MAP_FAILED;
}
}
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