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/*
* (c) Copyright 1998,1999 by Sebastien Marineau <sebastien@qnx.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* OREST ZBOROWSKI BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of Orest Zborowski shall not be
* used in advertising or otherwise to promote the sale, use or other dealings
* in this Software without prior written authorization from Orest Zborowski.
*
* $XFree86: xc/programs/Xserver/hw/xfree86/SuperProbe/OS_NTO.c,v 1.2 1999/09/25 12:39:41 dawes Exp $
*/
#include "Probe.h"
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#include <windows.h>
#include <sys/mman.h>
#include <sys/cygwin.h>
static int VT_fd = -1;
static int BIOS_fd = -1;
/*
* OpenVideo --
*
* Enable access to the installed video hardware.
*/
int OpenVideo()
{
int fd;
char fn[20];
if (geteuid() != 0) {
fprintf(stderr, "%s: Must be run as root\n", MyName);
return(-1);
}
if ((fd = open("/dev/conin", O_WRONLY, 0)) < 0) {
fprintf(stderr, "%s: Cannot open /dev/conin\n", MyName);
return(-1);
}
return fd;
}
/*
* CloseVideo --
*
* Disable access to the video hardware.
*/
void CloseVideo()
{
int fd;
if (VT_fd > 0) {
close(VT_fd);
}
}
/*
* MapVGA --
*
* Map the VGA memory window (0xA0000-0xAFFFF) as read/write memory for
* the process for use in probing memory.
*/
Byte *MapVGA()
{
return( MapMem(0xA0000,0x10000) );
}
Byte *MapMem(address, size)
unsigned long address;
unsigned long size;
{
int fd;
Byte *base;
if ((fd = open("/dev/zero", O_RDWR)) < 0) {
fprintf(stderr, "%s: Failed to open /dev/zero\n", MyName);
return((Byte *)0);
}
base = (Byte *)mmap((void *)0, size, PROT_READ|PROT_WRITE,
MAP_SHARED, fd, (off_t)address);
close(fd);
if ((long)base == -1) {
fprintf(stderr, "%s: Failed to mmap framebuffer\n", MyName);
return((Byte *)0);
}
return base;
}
/*
* UnMapVGA --
*
* Unmap the VGA memory window.
*/
void UnMapVGA(base)
Byte *base;
{
UnMapMem(base,0x10000);
return;
}
void UnMapMem(base,size)
Byte *base;
unsigned long size;
{
munmap((void *)base, size);
return;
}
/*
* ReadBIOS --
*
* Read 'Len' bytes from the video BIOS at address 'Bios_Base'+'Offset' into
* buffer 'Buffer'.
*/
int ReadBIOS(Offset, Buffer, Len)
unsigned Offset;
Byte *Buffer;
int Len;
{
Word tmp;
Byte *Base = Bios_Base + Offset;
Byte *mybase;
off_t myoffset;
int mysize;
if (BIOS_fd == -1) {
if ((BIOS_fd = open("/dev/mem", O_RDONLY, 0)) < 0) {
fprintf(stderr, "%s: cannot open /dev/mem\n", MyName);
return(-1);
}
}
if ((off_t)((off_t)Base & 0x7FFF) != (off_t)0) {
/*
* Sanity check...
*/
(void)lseek(BIOS_fd, (off_t)((off_t)Base & 0xF8000), SEEK_SET);
(void)read(BIOS_fd, &tmp, 2);
if (tmp != (Word)0xAA55) {
fprintf(stderr, "%s: BIOS sanity check failed, addr=%x\n",
MyName, (int)Base);
return(-1);
}
}
if (lseek(BIOS_fd, (off_t)Base, SEEK_SET) < 0) {
fprintf(stderr, "%s: BIOS seek failed\n", MyName);
return(-1);
}
if (read(BIOS_fd, Buffer, Len) != Len) {
fprintf(stderr, "%s: BIOS read failed\n", MyName);
return(-1);
}
return Len;
}
/*
* EnableIOPort --
*
* Enable access to 'NumPorts' IO ports listed in array 'Ports'.
*/
/*ARGSUSED*/
int EnableIOPorts(NumPorts, Ports)
CONST int NumPorts;
CONST Word *Ports;
{
return(0);
}
/*
* DisableIOPort --
*
* Disable access to 'NumPorts' IO ports listed in array 'Ports'.
*/
/*ARGSUSED*/
int DisableIOPorts(NumPorts, Port)
CONST int NumPorts;
CONST Word *Port;
{
return(0);
}
/*
* ShortSleep --
*
* Sleep for the number of milliseconds specified in 'Delay'.
*/
void ShortSleep(Delay)
int Delay;
{
usleep(Delay * 1000);
}
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