1 files changed, 21 insertions, 0 deletions
diff --git a/libdha/sysdep/pci_mach386.c b/libdha/sysdep/pci_mach386.c
new file mode 100644
index 0000000000..32e2a657ff
--- /dev/null
+++ b/libdha/sysdep/pci_mach386.c
@@ -0,0 +1,21 @@
+/*
+   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
+*/
+
+static int io_fd;
+
+static __inline__ void enable_os_io(void)
+{
+    io_fd = -1 ;
+    if ((io_fd = open("/dev/iopl", O_RDWR, 0)) < 0) {
+        perror("/dev/iopl");
+        exit(1);
+    }
+}
+
+static __inline__ void disable_os_io(void)
+{
+    close(io_fd);
+}