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mpv/libdha/sysdep/pci_isc.c
alex 3404000366 api changed: enable/disable_os_io returns error-code (or zero if ok) and pciconfig_read exported for mga_vid
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4175 b3059339-0415-0410-9bf9-f77b7e298cf2
2002-01-15 15:59:53 +00:00

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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/param.h>
#include <sys/immu.h>
#include <sys/region.h>
#include <sys/proc.h>
#include <sys/tss.h>
#include <sys/sysi86.h>
#include <sys/v86.h>
static __inline__ int enable_os_io(void)
{
#if defined(SI86IOPL)
sysi86(SI86IOPL, 3);
#else
sysi86(SI86V86, V86SC_IOPL, PS_IOPL);
#endif
return(0);
}
static __inline__ int disable_os_io(void)
{
#if defined(SI86IOPL)
sysi86(SI86IOPL, 0);
#else
sysi86(SI86V86, V86SC_IOPL, 0);
#endif
return(0);
}