projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 0c530ab8 A |
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_ */ |