| | 1 | /* |
| | 2 | * Copyright (c) 2000 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 I386_PIO_H |
| | 53 | #define I386_PIO_H |
| | 54 | #include <cpus.h> |
| | 55 | #include <mach_assert.h> |
| | 56 | |
| | 57 | typedef unsigned short i386_ioport_t; |
| | 58 | |
| | 59 | /* read a longword */ |
| | 60 | extern unsigned long inl( |
| | 61 | i386_ioport_t port); |
| | 62 | /* read a shortword */ |
| | 63 | extern unsigned short inw( |
| | 64 | i386_ioport_t port); |
| | 65 | /* read a byte */ |
| | 66 | extern unsigned char inb( |
| | 67 | i386_ioport_t port); |
| | 68 | /* write a longword */ |
| | 69 | extern void outl( |
| | 70 | i386_ioport_t port, |
| | 71 | unsigned long datum); |
| | 72 | /* write a word */ |
| | 73 | extern void outw( |
| | 74 | i386_ioport_t port, |
| | 75 | unsigned short datum); |
| | 76 | /* write a longword */ |
| | 77 | extern void outb( |
| | 78 | i386_ioport_t port, |
| | 79 | unsigned char datum); |
| | 80 | |
| | 81 | /* input an array of longwords */ |
| | 82 | extern void linl( |
| | 83 | i386_ioport_t port, |
| | 84 | int * data, |
| | 85 | int count); |
| | 86 | /* output an array of longwords */ |
| | 87 | extern void loutl( |
| | 88 | i386_ioport_t port, |
| | 89 | int * data, |
| | 90 | int count); |
| | 91 | |
| | 92 | /* input an array of words */ |
| | 93 | extern void linw( |
| | 94 | i386_ioport_t port, |
| | 95 | int * data, |
| | 96 | int count); |
| | 97 | /* output an array of words */ |
| | 98 | extern void loutw( |
| | 99 | i386_ioport_t port, |
| | 100 | int * data, |
| | 101 | int count); |
| | 102 | |
| | 103 | /* input an array of bytes */ |
| | 104 | extern void linb( |
| | 105 | i386_ioport_t port, |
| | 106 | char * data, |
| | 107 | int count); |
| | 108 | /* output an array of bytes */ |
| | 109 | extern void loutb( |
| | 110 | i386_ioport_t port, |
| | 111 | char * data, |
| | 112 | int count); |
| | 113 | |
| | 114 | #if defined(__GNUC__) && (!MACH_ASSERT) |
| | 115 | extern __inline__ unsigned long inl( |
| | 116 | i386_ioport_t port) |
| | 117 | { |
| | 118 | unsigned long datum; |
| | 119 | __asm__ volatile("inl %1, %0" : "=a" (datum) : "d" (port)); |
| | 120 | return(datum); |
| | 121 | } |
| | 122 | |
| | 123 | extern __inline__ unsigned short inw( |
| | 124 | i386_ioport_t port) |
| | 125 | { |
| | 126 | unsigned short datum; |
| | 127 | __asm__ volatile(".byte 0x66; inl %1, %0" : "=a" (datum) : "d" (port)); |
| | 128 | return(datum); |
| | 129 | } |
| | 130 | |
| | 131 | extern __inline__ unsigned char inb( |
| | 132 | i386_ioport_t port) |
| | 133 | { |
| | 134 | unsigned char datum; |
| | 135 | __asm__ volatile("inb %1, %0" : "=a" (datum) : "d" (port)); |
| | 136 | return(datum); |
| | 137 | } |
| | 138 | |
| | 139 | extern __inline__ void outl( |
| | 140 | i386_ioport_t port, |
| | 141 | unsigned long datum) |
| | 142 | { |
| | 143 | __asm__ volatile("outl %0, %1" : : "a" (datum), "d" (port)); |
| | 144 | } |
| | 145 | |
| | 146 | extern __inline__ void outw( |
| | 147 | i386_ioport_t port, |
| | 148 | unsigned short datum) |
| | 149 | { |
| | 150 | __asm__ volatile(".byte 0x66; outl %0, %1" : : "a" (datum), "d" (port)); |
| | 151 | } |
| | 152 | |
| | 153 | extern __inline__ void outb( |
| | 154 | i386_ioport_t port, |
| | 155 | unsigned char datum) |
| | 156 | { |
| | 157 | __asm__ volatile("outb %0, %1" : : "a" (datum), "d" (port)); |
| | 158 | } |
| | 159 | #endif /* defined(__GNUC__) && (!MACH_ASSERT) */ |
| | 160 | #endif /* I386_PIO_H */ |
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