1/* 2 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_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. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23/* 24 * @OSF_COPYRIGHT@ 25 */ 26/* 27 * Mach Operating System 28 * Copyright (c) 1991,1990 Carnegie Mellon University 29 * All Rights Reserved. 30 * 31 * Permission to use, copy, modify and distribute this software and its 32 * documentation is hereby granted, provided that both the copyright 33 * notice and this permission notice appear in all copies of the 34 * software, derivative works or modified versions, and any portions 35 * thereof, and that both notices appear in supporting documentation. 36 * 37 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 38 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 39 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 40 * 41 * Carnegie Mellon requests users of this software to return to 42 * 43 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 44 * School of Computer Science 45 * Carnegie Mellon University 46 * Pittsburgh PA 15213-3890 47 * 48 * any improvements or extensions that they make and grant Carnegie Mellon 49 * the rights to redistribute these changes. 50 */ 51/* 52 */ 53#ifndef _ARCH_I386_PIO_H_ 54#define _ARCH_I386_PIO_H_ 55 56typedef unsigned short i386_ioport_t; 57 58#if defined(__GNUC__) 59static __inline__ unsigned long inl( 60 i386_ioport_t port) 61{ 62 unsigned long datum; 63 __asm__ volatile("inl %w1, %0" : "=a" (datum) : "Nd" (port)); 64 return(datum); 65} 66 67static __inline__ unsigned short inw( 68 i386_ioport_t port) 69{ 70 unsigned short datum; 71 __asm__ volatile("inw %w1, %w0" : "=a" (datum) : "Nd" (port)); 72 return(datum); 73} 74 75static __inline__ unsigned char inb( 76 i386_ioport_t port) 77{ 78 unsigned char datum; 79 __asm__ volatile("inb %w1, %b0" : "=a" (datum) : "Nd" (port)); 80 return(datum); 81} 82 83static __inline__ void outl( 84 i386_ioport_t port, 85 unsigned long datum) 86{ 87 __asm__ volatile("outl %0, %w1" : : "a" (datum), "Nd" (port)); 88} 89 90static __inline__ void outw( 91 i386_ioport_t port, 92 unsigned short datum) 93{ 94 __asm__ volatile("outw %w0, %w1" : : "a" (datum), "Nd" (port)); 95} 96 97static __inline__ void outb( 98 i386_ioport_t port, 99 unsigned char datum) 100{ 101 __asm__ volatile("outb %b0, %w1" : : "a" (datum), "Nd" (port)); 102} 103#endif /* defined(__GNUC__) */ 104#endif /* _ARCH_I386_PIO_H_ */ 105