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	1	/*
	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28	/*
	29	* @OSF_COPYRIGHT@
	30	*/
	31	/*
	32	* Mach Operating System
	33	* Copyright (c) 1991,1990 Carnegie Mellon University
	34	* All Rights Reserved.
	35	*
	36	* Permission to use, copy, modify and distribute this software and its
	37	* documentation is hereby granted, provided that both the copyright
	38	* notice and this permission notice appear in all copies of the
	39	* software, derivative works or modified versions, and any portions
	40	* thereof, and that both notices appear in supporting documentation.
	41	*
	42	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	43	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	44	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	45	*
	46	* Carnegie Mellon requests users of this software to return to
	47	*
	48	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	49	* School of Computer Science
	50	* Carnegie Mellon University
	51	* Pittsburgh PA 15213-3890
	52	*
	53	* any improvements or extensions that they make and grant Carnegie Mellon
	54	* the rights to redistribute these changes.
	55	*/
	56	/*
	57	*/
	58	#ifndef _ARCH_I386_PIO_H_
	59	#define _ARCH_I386_PIO_H_
	60
	61	typedef unsigned short i386_ioport_t;
	62
	63	#if defined(__GNUC__)
	64	static __inline__ unsigned int inl(
	65	i386_ioport_t port)
	66	{
	67	unsigned int datum;
	68	__asm__ volatile("inl %w1, %0" : "=a" (datum) : "Nd" (port));
	69	return(datum);
	70	}
	71
	72	static __inline__ unsigned short inw(
	73	i386_ioport_t port)
	74	{
	75	unsigned short datum;
	76	__asm__ volatile("inw %w1, %w0" : "=a" (datum) : "Nd" (port));
	77	return(datum);
	78	}
	79
	80	static __inline__ unsigned char inb(
	81	i386_ioport_t port)
	82	{
	83	unsigned char datum;
	84	__asm__ volatile("inb %w1, %b0" : "=a" (datum) : "Nd" (port));
	85	return(datum);
	86	}
	87
	88	static __inline__ void outl(
	89	i386_ioport_t port,
	90	unsigned int datum)
	91	{
	92	__asm__ volatile("outl %0, %w1" : : "a" (datum), "Nd" (port));
	93	}
	94
	95	static __inline__ void outw(
	96	i386_ioport_t port,
	97	unsigned short datum)
	98	{
	99	__asm__ volatile("outw %w0, %w1" : : "a" (datum), "Nd" (port));
	100	}
	101
	102	static __inline__ void outb(
	103	i386_ioport_t port,
	104	unsigned char datum)
	105	{
	106	__asm__ volatile("outb %b0, %w1" : : "a" (datum), "Nd" (port));
	107	}
	108	#endif /* defined(__GNUC__) */
	109	#endif /* _ARCH_I386_PIO_H_ */