Return to pio.h CVS log

Up to [Apple XNU] / XNU / osfmk / i386

Annotation of XNU/osfmk/i386/pio.h, revision 1.1

1.1     ! root        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  [email protected]
        !            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 */

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.