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/*
This file is based on:
$XFree86: xc/programs/Xserver/hw/xfree86/etc/scanpci.c,v 3.34.2.17 1998/11/10 11:55:40 dawes Exp $
Modified for readability by Nick Kurshev
*/
#include <errno.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <i386/isa/pcconsioctl.h>
#ifndef GCCUSESGAS
#define GCCUSESGAS
#endif
static int io_fd;
static __inline__ int enable_os_io(void)
{
io_fd = -1 ;
if ((io_fd = open("/dev/console", O_RDWR, 0)) < 0) {
perror("/dev/console");
return(errno);
}
if (ioctl(io_fd, PCCONENABIOPL, 0) < 0) {
perror("ioctl(PCCONENABIOPL)");
return(errno);
}
return(0);
}
static __inline__ int disable_os_io(void)
{
if (ioctl(io_fd, PCCONDISABIOPL, 0) < 0) {
perror("ioctl(PCCONDISABIOPL)");
close(io_fd);
return(errno);
}
close(io_fd);
return(0);
}
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