1 files changed, 49 insertions, 0 deletions
diff --git a/util/superiotool/superiotool.h b/util/superiotool/superiotool.h
index fcef02df1f..ba51345560 100644
--- a/util/superiotool/superiotool.h
+++ b/util/superiotool/superiotool.h
@@ -59,6 +59,55 @@
 #define INL  inl
 #endif
 
+#if defined(__NetBSD__) && defined(__i386__) || defined(__x86_64__)
+#include <sys/types.h>
+#include <machine/sysarch.h>
+#if defined(__i386__)
+#define iopl i386_iopl
+#elif defined(__x86_64__)
+#define iopl x86_64_iopl
+#endif
+
+static __inline__ void
+outb(uint8_t value, uint16_t port)
+{
+	__asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline__ void
+outw(uint16_t value, uint16_t port)
+{
+	__asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline__ void
+outl(uint32_t value, uint16_t port)
+{
+	__asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline__ uint8_t inb(uint16_t port)
+{
+	uint8_t value;
+	__asm__ __volatile__ ("inb %w1,%0":"=a" (value):"Nd" (port));
+	return value;
+}
+
+static __inline__ uint16_t inw(uint16_t port)
+{
+	uint16_t value;
+	__asm__ __volatile__ ("inw %w1,%0":"=a" (value):"Nd" (port));
+	return value;
+}
+
+static __inline__ uint32_t inl(uint16_t port)
+{
+	uint32_t value;
+	__asm__ __volatile__ ("inl %1,%0":"=a" (value):"Nd" (port));
+	return value;
+}
+#endif
+
 #define USAGE "Usage: superiotool [-d] [-e] [-l] [-V] [-v] [-h]\n\n\
   -d | --dump            Dump Super I/O register contents\n\
   -e | --extra-dump      Dump secondary registers too (e.g. EC registers)\n\