projects / apple / xnu.git / blame
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|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 37839358 A |
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. | |
| 1c79356b | 11 | * |
| 37839358 A |
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 | |
| 1c79356b A |
14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 37839358 A |
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. | |
| 1c79356b A |
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 I386_PIO_H | |
| 53 | #define I386_PIO_H | |
| 1c79356b A |
54 | #include <mach_assert.h> |
| 55 | ||
| 56 | typedef unsigned short i386_ioport_t; | |
| 57 | ||
| 58 | /* read a longword */ | |
| 59 | extern unsigned long inl( | |
| 60 | i386_ioport_t port); | |
| 61 | /* read a shortword */ | |
| 62 | extern unsigned short inw( | |
| 63 | i386_ioport_t port); | |
| 64 | /* read a byte */ | |
| 65 | extern unsigned char inb( | |
| 66 | i386_ioport_t port); | |
| 67 | /* write a longword */ | |
| 68 | extern void outl( | |
| 69 | i386_ioport_t port, | |
| 70 | unsigned long datum); | |
| 71 | /* write a word */ | |
| 72 | extern void outw( | |
| 73 | i386_ioport_t port, | |
| 74 | unsigned short datum); | |
| 75 | /* write a longword */ | |
| 76 | extern void outb( | |
| 77 | i386_ioport_t port, | |
| 78 | unsigned char datum); | |
| 79 | ||
| 80 | /* input an array of longwords */ | |
| 81 | extern void linl( | |
| 82 | i386_ioport_t port, | |
| 83 | int * data, | |
| 84 | int count); | |
| 85 | /* output an array of longwords */ | |
| 86 | extern void loutl( | |
| 87 | i386_ioport_t port, | |
| 88 | int * data, | |
| 89 | int count); | |
| 90 | ||
| 91 | /* input an array of words */ | |
| 92 | extern void linw( | |
| 93 | i386_ioport_t port, | |
| 94 | int * data, | |
| 95 | int count); | |
| 96 | /* output an array of words */ | |
| 97 | extern void loutw( | |
| 98 | i386_ioport_t port, | |
| 99 | int * data, | |
| 100 | int count); | |
| 101 | ||
| 102 | /* input an array of bytes */ | |
| 103 | extern void linb( | |
| 104 | i386_ioport_t port, | |
| 105 | char * data, | |
| 106 | int count); | |
| 107 | /* output an array of bytes */ | |
| 108 | extern void loutb( | |
| 109 | i386_ioport_t port, | |
| 110 | char * data, | |
| 111 | int count); | |
| 112 | ||
| 113 | #if defined(__GNUC__) && (!MACH_ASSERT) | |
| 114 | extern __inline__ unsigned long inl( | |
| 115 | i386_ioport_t port) | |
| 116 | { | |
| 117 | unsigned long datum; | |
| 118 | __asm__ volatile("inl %1, %0" : "=a" (datum) : "d" (port)); | |
| 119 | return(datum); | |
| 120 | } | |
| 121 | ||
| 122 | extern __inline__ unsigned short inw( | |
| 123 | i386_ioport_t port) | |
| 124 | { | |
| 125 | unsigned short datum; | |
| 126 | __asm__ volatile(".byte 0x66; inl %1, %0" : "=a" (datum) : "d" (port)); | |
| 127 | return(datum); | |
| 128 | } | |
| 129 | ||
| 130 | extern __inline__ unsigned char inb( | |
| 131 | i386_ioport_t port) | |
| 132 | { | |
| 133 | unsigned char datum; | |
| 134 | __asm__ volatile("inb %1, %0" : "=a" (datum) : "d" (port)); | |
| 135 | return(datum); | |
| 136 | } | |
| 137 | ||
| 138 | extern __inline__ void outl( | |
| 139 | i386_ioport_t port, | |
| 140 | unsigned long datum) | |
| 141 | { | |
| 142 | __asm__ volatile("outl %0, %1" : : "a" (datum), "d" (port)); | |
| 143 | } | |
| 144 | ||
| 145 | extern __inline__ void outw( | |
| 146 | i386_ioport_t port, | |
| 147 | unsigned short datum) | |
| 148 | { | |
| 149 | __asm__ volatile(".byte 0x66; outl %0, %1" : : "a" (datum), "d" (port)); | |
| 150 | } | |
| 151 | ||
| 152 | extern __inline__ void outb( | |
| 153 | i386_ioport_t port, | |
| 154 | unsigned char datum) | |
| 155 | { | |
| 156 | __asm__ volatile("outb %0, %1" : : "a" (datum), "d" (port)); | |
| 157 | } | |
| 158 | #endif /* defined(__GNUC__) && (!MACH_ASSERT) */ | |
| 159 | #endif /* I386_PIO_H */ |