/* 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 #ifdef __i386__ #include #else #ifndef __sparc__ #include #endif #endif #include "config.h" #ifdef CONFIG_DHAHELPER #include int dhahelper_initialized = 0; int dhahelper_fd = 0; #endif static __inline__ int enable_os_io(void) { #ifdef CONFIG_DHAHELPER dhahelper_fd = open("/dev/dhahelper", O_RDWR); if (dhahelper_fd > 0) { dhahelper_initialized = 1; return(0); } dhahelper_initialized = -1; #endif if (iopl(3) != 0) return(errno); return(0); } static __inline__ int disable_os_io(void) { #ifdef CONFIG_DHAHELPER if (dhahelper_initialized == 1) close(dhahelper_fd); else #endif if (iopl(0) != 0) return(errno); return(0); }