1 files changed, 25 insertions, 0 deletions
diff --git a/contrib/libdha/sysdep/pci_mach386.c b/contrib/libdha/sysdep/pci_mach386.c
new file mode 100644
index 000000000..31621862b
--- /dev/null
+++ b/contrib/libdha/sysdep/pci_mach386.c
@@ -0,0 +1,25 @@
+/*
+   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>
+
+static int io_fd;
+
+static __inline__ int enable_os_io(void)
+{
+    io_fd = -1 ;
+    if ((io_fd = open("/dev/iopl", O_RDWR, 0)) < 0) {
+        perror("/dev/iopl");
+        return(errno);
+    }
+    return(0);
+}
+
+static __inline__ int disable_os_io(void)
+{
+    close(io_fd);
+    return(0);
+}