mirror of https://github.com/mpv-player/mpv
37 lines
798 B
C
37 lines
798 B
C
|
/*
|
||
|
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 <sys/file.h>
|
||
|
#include <sys/ioctl.h>
|
||
|
#include <i386/isa/pcconsioctl.h>
|
||
|
#ifndef GCCUSESGAS
|
||
|
#define GCCUSESGAS
|
||
|
#endif
|
||
|
|
||
|
static int io_fd;
|
||
|
|
||
|
static __inline__ void enable_os_io(void)
|
||
|
{
|
||
|
io_fd = -1 ;
|
||
|
if ((io_fd = open("/dev/console", O_RDWR, 0)) < 0) {
|
||
|
perror("/dev/console");
|
||
|
exit(1);
|
||
|
}
|
||
|
if (ioctl(io_fd, PCCONENABIOPL, 0) < 0) {
|
||
|
perror("ioctl(PCCONENABIOPL)");
|
||
|
exit(1);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static __inline__ void disable_os_io(void)
|
||
|
{
|
||
|
if (ioctl(io_fd, PCCONDISABIOPL, 0) < 0) {
|
||
|
perror("ioctl(PCCONDISABIOPL)");
|
||
|
close(io_fd);
|
||
|
exit(1);
|
||
|
}
|
||
|
close(io_fd);
|
||
|
}
|