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	1	/*
	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* @OSF_COPYRIGHT@
	24	*/
	25	/*
	26	* Mach Operating System
	27	* Copyright (c) 1991,1990 Carnegie Mellon University
	28	* All Rights Reserved.
	29	*
	30	* Permission to use, copy, modify and distribute this software and its
	31	* documentation is hereby granted, provided that both the copyright
	32	* notice and this permission notice appear in all copies of the
	33	* software, derivative works or modified versions, and any portions
	34	* thereof, and that both notices appear in supporting documentation.
	35	*
	36	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	37	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	38	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	39	*
	40	* Carnegie Mellon requests users of this software to return to
	41	*
	42	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	43	* School of Computer Science
	44	* Carnegie Mellon University
	45	* Pittsburgh PA 15213-3890
	46	*
	47	* any improvements or extensions that they make and grant Carnegie Mellon
	48	* the rights to redistribute these changes.
	49	*/
	50	/*
	51	*/
	52	#ifndef _ARCH_I386_PIO_H_
	53	#define _ARCH_I386_PIO_H_
	54
	55	typedef unsigned short i386_ioport_t;
	56
	57	#if defined(__GNUC__)
	58	static __inline__ unsigned long inl(
	59	i386_ioport_t port)
	60	{
	61	unsigned long datum;
	62	__asm__ volatile("inl %w1, %0" : "=a" (datum) : "Nd" (port));
	63	return(datum);
	64	}
	65
	66	static __inline__ unsigned short inw(
	67	i386_ioport_t port)
	68	{
	69	unsigned short datum;
	70	__asm__ volatile("inw %w1, %w0" : "=a" (datum) : "Nd" (port));
	71	return(datum);
	72	}
	73
	74	static __inline__ unsigned char inb(
	75	i386_ioport_t port)
	76	{
	77	unsigned char datum;
	78	__asm__ volatile("inb %w1, %b0" : "=a" (datum) : "Nd" (port));
	79	return(datum);
	80	}
	81
	82	static __inline__ void outl(
	83	i386_ioport_t port,
	84	unsigned long datum)
	85	{
	86	__asm__ volatile("outl %0, %w1" : : "a" (datum), "Nd" (port));
	87	}
	88
	89	static __inline__ void outw(
	90	i386_ioport_t port,
	91	unsigned short datum)
	92	{
	93	__asm__ volatile("outw %w0, %w1" : : "a" (datum), "Nd" (port));
	94	}
	95
	96	static __inline__ void outb(
	97	i386_ioport_t port,
	98	unsigned char datum)
	99	{
	100	__asm__ volatile("outb %b0, %w1" : : "a" (datum), "Nd" (port));
	101	}
	102	#endif /* defined(__GNUC__) */
	103	#endif /* _ARCH_I386_PIO_H_ */