$NetBSD: patch-ad,v 1.1 2008/08/25 14:46:29 joerg Exp $

--- vbios.c.orig	2005-05-08 19:47:08.000000000 +0000
+++ vbios.c
@@ -18,7 +18,6 @@
 #include <string.h>
 #include <sys/mman.h>
 #include <fcntl.h>
-#include <sys/io.h>
 
 #include "vbios.h"
 
@@ -34,6 +33,43 @@
 #define VBIOS_OFFSET_IN_FILE 0
 #endif
 
+static uint8_t
+asm_inb(unsigned port)
+{
+	uint8_t data;
+	__asm volatile("inb %w1,%0" : "=a" (data) : "d" (port));
+	return data;
+}
+
+static __inline void
+asm_outb(uint8_t data, unsigned port)
+{
+	__asm volatile("outb %0,%w1" : : "a" (data), "d" (port));
+}
+
+static uint32_t
+asm_inl(unsigned port)
+{
+	uint32_t data;
+	__asm volatile("inl %w1,%0" : "=a" (data) : "d" (port));
+	return data;
+}
+
+static __inline void
+asm_outl(uint32_t data, unsigned port)
+{
+	__asm volatile("outl %0,%w1" : : "a" (data), "d" (port));
+}
+
+#undef	inb
+#undef	outb
+#define	inb asm_inb
+#define	outb asm_outb
+#undef	inl
+#undef	outl
+#define	inl asm_inl
+#define	outl asm_outl
+
 unsigned char *bios = 0;
 
 static int biosfd = 0;