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 61typedef unsigned short i386_ioport_t; 62 63#if defined(__GNUC__) 64static __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 72static __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 80static __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 88static __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 95static __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 102static __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_ */ 110