Needed for using get_privileged_port. Signed-off-by: Pino Toscano <toscano.pino@tiscali.it> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Julien Cristau <jcristau@debian.org>
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/*
|
|
* Copyright 1997 by UCHIYAMA Yasushi
|
|
*
|
|
* 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 UCHIYAMA Yasushi not be used in
|
|
* advertising or publicity pertaining to distribution of the software without
|
|
* specific, written prior permission. UCHIYAMA Yasushi makes no representations
|
|
* about the suitability of this software for any purpose. It is provided
|
|
* "as is" without express or implied warranty.
|
|
*
|
|
* UCHIYAMA YASUSHI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL UCHIYAMA YASUSHI 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<mach.h>
|
|
#include<device/device.h>
|
|
#include<mach/machine/mach_i386.h>
|
|
#include <hurd.h>
|
|
|
|
#include <X11/X.h>
|
|
|
|
#include "xf86.h"
|
|
#include "xf86Priv.h"
|
|
#include "xf86_OSlib.h"
|
|
|
|
#define BIOS_SIZE 0x20000
|
|
|
|
int
|
|
xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
|
|
int Len)
|
|
{
|
|
mach_port_t device, mem_dev;
|
|
memory_object_t mem_obj;
|
|
vm_address_t addr = (vm_address_t) 0; /* serach starting address */
|
|
kern_return_t err;
|
|
|
|
err = get_privileged_ports(NULL, &device);
|
|
if (err) {
|
|
errno = err;
|
|
FatalError("xf86ReadBIOS() can't get_privileged_ports. (%s)\n",
|
|
strerror(errno));
|
|
}
|
|
err = device_open(device, D_READ | D_WRITE, "mem", &mem_dev);
|
|
mach_port_deallocate(mach_task_self(), device);
|
|
if (err) {
|
|
errno = err;
|
|
FatalError("xf86ReadBIOS() can't device_open. (%s)\n", strerror(errno));
|
|
}
|
|
err =
|
|
device_map(mem_dev, VM_PROT_READ | VM_PROT_WRITE, Base, BIOS_SIZE,
|
|
&mem_obj, 0);
|
|
if (err) {
|
|
errno = err;
|
|
FatalError("xf86ReadBIOS() can't device_map. (%s)\n", strerror(errno));
|
|
}
|
|
err = vm_map(mach_task_self(),
|
|
&addr,
|
|
BIOS_SIZE,
|
|
0,
|
|
TRUE,
|
|
mem_obj,
|
|
Base,
|
|
FALSE,
|
|
VM_PROT_READ | VM_PROT_WRITE,
|
|
VM_PROT_READ | VM_PROT_WRITE, VM_INHERIT_SHARE);
|
|
mach_port_deallocate(mach_task_self(), mem_obj);
|
|
if (err) {
|
|
errno = err;
|
|
FatalError("xf86ReadBIOS() can't vm_map. (%s)\n", strerror(errno));
|
|
}
|
|
|
|
memcpy(Buf, (void *) ((int) addr + Offset), Len);
|
|
|
|
err = vm_deallocate(mach_task_self(), addr, BIOS_SIZE);
|
|
if (err) {
|
|
errno = err;
|
|
FatalError("xf86ReadBIOS() can't vm_deallocate. (%s)\n",
|
|
strerror(errno));
|
|
}
|
|
|
|
return Len;
|
|
}
|