/* 
 * Copyright 2010 Stefan Lankes, Chair for Operating Systems,
 *                               RWTH Aachen University
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * This file is part of MetalSVM.
 */

#ifndef __ARCH_IO_H__
#define __ARCH_IO_H__

#ifdef __cplusplus
extern "C" {
#endif

inline static unsigned char inportb(unsigned short _port) {
	unsigned char rv;
	asm volatile("inb %1, %0":"=a"(rv):"dN"(_port));
	return rv;
} 

inline static unsigned short inportw(unsigned short _port) {
	unsigned short rv;
	asm volatile("inw %1, %0":"=a"(rv):"dN"(_port));
	return rv;
}

inline static unsigned int inportl(unsigned short _port) {
	unsigned int rv;
	asm volatile("inl %1, %0":"=a"(rv):"dN"(_port));
	return rv;
}

inline static void outportb(unsigned short _port, unsigned char _data) {
	asm volatile("outb %1, %0"::"dN"(_port), "a"(_data));
}

inline static void outportw(unsigned short _port, unsigned short _data) {
	asm volatile("outw %1, %0"::"dN"(_port), "a"(_data));
}

inline static void outportl(unsigned short _port, unsigned int _data)
{
	 asm volatile("outl %1, %0"::"dN"(_port), "a"(_data));
}

#ifdef __cplusplus
}
#endif

#endif