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/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/pmax/pmax_map.c,v 1.7 2000/06/27 14:27:31 tsi Exp $ */
/*
* Copyright 1998 by Concurrent Computer Corporation
*
* 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 Concurrent Computer
* Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Concurrent Computer Corporation makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION 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.
*
* Copyright 1998 by Metro Link Incorporated
*
* 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 Metro Link
* Incorporated not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Metro Link Incorporated makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED 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.
*
* This file was derived in part from the original XFree86 sysv OS
* support which contains the following copyright notice:
*
* Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
* 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 Thomas Roell and David Wexelblat
* not be used in advertising or publicity pertaining to distribution of
* the software without specific, written prior permission. Thomas Roell and
* David Wexelblat makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* THOMAS ROELL AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THOMAS ROELL 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 "Pci.h"
/***************************************************************************/
/* Video Memory Mapping section */
/***************************************************************************/
/*
* Map an I/O region given its address (host POV)
*/
void *
pmax_iomap(unsigned long base, unsigned long len)
{
int fd;
void *rv;
if ((fd = open("/dev/iomem", O_RDWR)) < 0)
{
ErrorF("pmax_iomap: failed to open /dev/iomem (%s)\n",
strerror(errno));
return(MAP_FAILED);
}
rv = (void *)mmap((caddr_t)0, len, PROT_READ|PROT_WRITE,
MAP_SHARED, fd, (off_t)base);
close(fd);
return(rv);
}
Bool
xf86LinearVidMem()
{
return TRUE;
}
extern void * pmax_iomap(unsigned long, unsigned long);
pointer
xf86MapVidMem(int ScreenNum, int Region, pointer Base, unsigned long Size)
{
ErrorF("%s: Not supported on this OS. Drivers should use xf86MapPciMem() instead\n",
"xf86MapVidMem");
FatalError("%s: Cannot map [s=%x,a=%x]\n", "xf86MapVidMem", Size, Base);
}
pointer
xf86MapPciMem(int ScreenNum, int Flags, PCITAG Tag, pointer Base,
unsigned long Size)
{
pointer hostbase = pciBusAddrToHostAddr(Tag, Base);
pointer base;
base = (pointer) pmax_iomap((unsigned long)hostbase, Size);
if (base == MAP_FAILED) {
xf86Msg(X_WARNING,
"xf86MapPciMem: Could not mmap PCI memory "
"[base=0x%x,hostbase=0x%x,size=%x] (%s)\n",
Base, hostbase, Size, strerror(errno));
}
return((pointer)base);
}
/* ARGSUSED */
void
xf86UnMapVidMem(int ScreenNum, pointer Base, unsigned long Size)
{
munmap(Base, Size);
}
/*
* Read BIOS via mmap()ing /dev/iomem.
*/
/*ARGSUSED*/
int
xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf, int Len)
{
ErrorF("%s: Not supported on this OS. Drivers should use xf86ReadPciBIOS() instead\n",
"xf86ReadBIOS");
FatalError("%s: Cannot read BIOS [base=0x%x,offset=0x%x,size=%d]\n", "xf86ReadBIOS", Base, Offset, Len);
}
int
xf86ReadPciBIOS(unsigned long Base, unsigned long Offset, PCITAG Tag,
unsigned char *Buf, int Len)
{
pointer hostbase = pciBusAddrToHostAddr(Tag, (void *)Base);
char *base;
int psize;
int mlen;
psize = xf86getpagesize();
Offset += Base & (psize - 1);
Base &= ~(psize - 1);
mlen = (Offset + Len + psize - 1) & ~(psize - 1);
base = pmax_iomap((unsigned long)hostbase, mlen);
if (base == MAP_FAILED) {
xf86Msg(X_WARNING, "xf86ReadPciBIOS: Could not mmap PCI memory"
" [base=0x%x,hostbase=0x%x,size=%x] (%s)\n",
Base, hostbase, mlen, strerror(errno));
return(0);
}
(void)memcpy(Buf, base + Offset, Len);
(void)munmap(base, mlen);
return(Len);
}
/***************************************************************************/
/* Interrupt Handling section */
/***************************************************************************/
#include <sys/ipl.h>
#ifndef PL_HI
#define PL_HI PL8
#endif
#ifndef PL_0
#define PL_0 PL0
#endif
static void *spl_map_addr = NULL;
void
pmax_init_splmap(void)
{
spl_map_addr = spl_map(0);
if (!spl_map_addr) {
xf86Msg(X_WARNING,
"pmax_init_splmap: spl_map() failed. "
"Cannot bind to IPL register\n");
xf86ErrorF("\tInterrupts cannot be disabled/enabled !!!\n");
}
}
Bool
xf86DisableInterrupts()
{
if (spl_map_addr) {
(void)spl_request(PL_HI,spl_map_addr);
return(TRUE);
}
return(FALSE);
}
void xf86EnableInterrupts()
{
if (spl_map_addr) {
(void)spl_request(PL_0, spl_map_addr);
}
}
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