1 files changed, 44 insertions, 0 deletions
diff --git a/vidix/sysdep/pci_netbsd.c b/vidix/sysdep/pci_netbsd.c
new file mode 100644
index 0000000000..793944beba
--- /dev/null
+++ b/vidix/sysdep/pci_netbsd.c
@@ -0,0 +1,44 @@
+/*
+   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>
+#include <sys/param.h>
+#include <sys/file.h>
+#include <machine/sysarch.h>
+#ifndef GCCUSESGAS
+#define GCCUSESGAS
+#endif
+
+static int io_fd;
+
+static __inline__ int enable_os_io(void)
+{
+    io_fd = -1 ;
+#if !defined(USE_I386_IOPL)
+    if ((io_fd = open("/dev/io", O_RDWR, 0)) < 0) {
+	perror("/dev/io");
+	return(errno);
+    }
+#else
+    if (i386_iopl(1) < 0) {
+	perror("i386_iopl");
+	return(errno);
+    }
+#endif /* USE_I386_IOPL */
+    return(0);
+}
+
+static __inline__ int disable_os_io(void)
+{
+#if !defined(USE_I386_IOPL)
+    close(io_fd);
+#else
+    if (i386_iopl(0) < 0) {
+	perror("i386_iopl");
+	return(errno);
+    }
+#endif /* NetBSD1_1 */
+    return(0);
+}