xenocara/driver/xf86-video-chips/util/iopl.h
2017-02-18 17:02:50 +00:00

61 lines
1.3 KiB
C

#ifdef __NetBSD__
# include <sys/types.h>
# include <machine/pio.h>
# include <machine/sysarch.h>
#else
# if defined(__linux__)
/* Can't because <sys/iopl.h> provides conflicting inb, outb, etc
* # include <sys/io.h>
*/
int iopl(int level);
# endif
# if defined(SVR4) && defined(i386)
# include <sys/types.h>
# ifdef NCR
/* broken NCR <sys/sysi86.h> */
# define __STDC
# include <sys/sysi86.h>
# undef __STDC
# else
# include <sys/sysi86.h>
# endif
# ifdef SVR4
# if !defined(sun)
# include <sys/seg.h>
# endif
# endif
# include <sys/v86.h>
# if defined(sun)
# include <sys/psw.h>
# endif
# endif
# include "AsmMacros.h"
#endif /* NetBSD */
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef __NetBSD__
# define SET_IOPL() i386_iopl(3)
# define RESET_IOPL() i386_iopl(0)
#else
# if defined(SVR4) && defined(i386)
# ifndef SI86IOPL
# define SET_IOPL() sysi86(SI86V86,V86SC_IOPL,PS_IOPL)
# define RESET_IOPL() sysi86(SI86V86,V86SC_IOPL,0)
# else
# define SET_IOPL() sysi86(SI86IOPL,3)
# define RESET_IOPL() sysi86(SI86IOPL,0)
# endif
# else
# ifdef linux
# define SET_IOPL() iopl(3)
# define RESET_IOPL() iopl(0)
# else
# define SET_IOPL() (void)0
# define RESET_IOPL() (void)0
# endif
# endif
#endif