Importing mkelfimage from

ftp://ftp.lnxi.com/pub/mkelfImage/mkelfImage-2.7.tar.gz

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3103 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

util/mkelfImage/arch/i386/include/arch/io.h

@@ -0,0 +1,64 @@
+#ifndef ARCH_IO_H
+#define ARCH_IO_H
+
+#include <stdint.h>
+/* Helper functions for directly doing I/O */
+
+extern inline uint8_t inb(uint16_t port)
+{
+	uint8_t result;
+
+	__asm__ __volatile__ (
+		"inb %w1,%0"
+		:"=a" (result)
+		:"Nd" (port));
+	return result;
+}
+
+extern inline uint16_t inw(uint16_t port)
+{
+	uint16_t result;
+
+	__asm__ __volatile__ (
+		"inw %w1,%0"
+		:"=a" (result)
+		:"Nd" (port));
+	return result;
+}
+
+extern inline uint32_t inl(uint32_t port)
+{
+	uint32_t result;
+
+	__asm__ __volatile__ (
+		"inl %w1,%0"
+		:"=a" (result)
+		:"Nd" (port));
+	return result;
+}
+
+extern inline void outb (uint8_t value, uint16_t port)
+{
+	__asm__ __volatile__ (
+		"outb %b0,%w1"
+		:
+		:"a" (value), "Nd" (port));
+}
+
+extern inline void outw (uint16_t value, uint16_t port)
+{
+	__asm__ __volatile__ (
+		"outw %w0,%w1"
+		:
+		:"a" (value), "Nd" (port));
+}
+
+extern inline void outl (uint32_t value, uint16_t port)
+{
+	__asm__ __volatile__ (
+		"outl %0,%w1"
+		:
+		:"a" (value), "Nd" (port));
+}
+
+#endif /* ARCH_IO_H */