pio.h revision 1.10 
11.10Smaxv/*	$NetBSD: pio.h,v 1.10 2019/11/15 09:03:26 maxv Exp $	*/
21.1Sfvdl
31.1Sfvdl/*-
41.1Sfvdl * Copyright (c) 1998 The NetBSD Foundation, Inc.
51.1Sfvdl * All rights reserved.
61.1Sfvdl *
71.1Sfvdl * This code is derived from software contributed to The NetBSD Foundation
81.1Sfvdl * by Charles M. Hannum.
91.1Sfvdl *
101.1Sfvdl * Redistribution and use in source and binary forms, with or without
111.1Sfvdl * modification, are permitted provided that the following conditions
121.1Sfvdl * are met:
131.1Sfvdl * 1. Redistributions of source code must retain the above copyright
141.1Sfvdl *    notice, this list of conditions and the following disclaimer.
151.1Sfvdl * 2. Redistributions in binary form must reproduce the above copyright
161.1Sfvdl *    notice, this list of conditions and the following disclaimer in the
171.1Sfvdl *    documentation and/or other materials provided with the distribution.
181.1Sfvdl *
191.1Sfvdl * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
201.1Sfvdl * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
211.1Sfvdl * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
221.1Sfvdl * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
231.1Sfvdl * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
241.1Sfvdl * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
251.1Sfvdl * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
261.1Sfvdl * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
271.1Sfvdl * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
281.1Sfvdl * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
291.1Sfvdl * POSSIBILITY OF SUCH DAMAGE.
301.1Sfvdl */
311.1Sfvdl
321.1Sfvdl#ifndef _X86_PIO_H_
331.1Sfvdl#define _X86_PIO_H_
341.1Sfvdl
351.1Sfvdl/*
361.1Sfvdl * Functions to provide access to x86 programmed I/O instructions.
371.1Sfvdl */
381.1Sfvdl
391.9Schristosuint8_t		inb(unsigned);
401.6Saduint16_t	inw(unsigned);
411.6Saduint32_t	inl(unsigned);
421.6Sad
431.6Sadvoid		outb(unsigned, uint8_t);
441.6Sadvoid		outw(unsigned, uint16_t);
451.6Sadvoid		outl(unsigned, uint32_t);
461.6Sad
471.1Sfvdl#endif /* _X86_PIO_H_ */
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