Source to bsd/dev/i386/pio.h
/*
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* The contents of this file constitute Original Code as defined in and
* are subject to the Apple Public Source License Version 1.1 (the
* "License"). You may not use this file except in compliance with the
* License. Please obtain a copy of the License at
* http://www.apple.com/publicsource and read it before using this file.
*
* This Original Code and all software distributed under the License are
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
/*
* HISTORY
*
* Revision 1.2 1998/09/30 21:20:45 wsanchez
* Merged in IntelMerge1 (mburg: Intel support)
*
* Revision 1.1.2.1 1998/09/30 18:18:50 mburg
* Changes for Intel port
*
* Revision 1.1.1.1 1998/03/07 02:25:38 wsanchez
* Import of OSF Mach kernel (~mburg)
*
* Revision 1.1.8.2 1996/07/31 09:46:36 paire
* Merged with nmk20b7_shared (1.1.11.2 -> 1.1.11.1)
* [96/06/10 paire]
*
* Revision 1.1.11.2 1996/06/13 12:38:25 bernadat
* Do not use inline macros when MACH_ASSERT is configured.
* [96/05/24 bernadat]
*
* Revision 1.1.11.1 1996/05/14 13:50:23 paire
* Added new linl and loutl __inline__.
* Added conditional compilation for [l]{in|oub}[bwl]() __inline__.
* [95/11/24 paire]
*
* Revision 1.1.8.1 1994/09/23 02:00:28 ezf
* change marker to not FREE
* [1994/09/22 21:25:52 ezf]
*
* Revision 1.1.4.5 1993/08/09 19:40:41 dswartz
* Add ANSI prototypes - CR#9523
* [1993/08/06 17:45:57 dswartz]
*
* Revision 1.1.4.4 1993/06/11 15:17:37 jeffc
* CR9176 - ANSI C violations: inb/outb macros must be changed from
* ({ ... }) to inline functions, with proper type definitions. Callers
* must pass proper types to these functions: 386 I/O port addresses
* are unsigned shorts (not pointers).
* [1993/06/10 14:26:10 jeffc]
*
* Revision 1.1.4.3 1993/06/07 22:09:28 jeffc
* CR9176 - ANSI C violations: trailing tokens on CPP
* directives, extra semicolons after decl_ ..., asm keywords
* [1993/06/07 19:00:26 jeffc]
*
* Revision 1.1.4.2 1993/06/04 15:28:45 jeffc
* CR9176 - ANSI problems -
* Added casts to get macros to take caddr_t as an I/O space address.
* [1993/06/04 13:45:55 jeffc]
*
* Revision 1.1 1992/09/30 02:25:51 robert
* Initial revision
*
* $EndLog$
*/
/* CMU_HIST */
/*
* Revision 2.5 91/05/14 16:14:20 mrt
* Correcting copyright
*
* Revision 2.4 91/02/05 17:13:56 mrt
* Changed to new Mach copyright
* [91/02/01 17:37:08 mrt]
*
* Revision 2.3 90/12/20 16:36:37 jeffreyh
* changes for __STDC__
* [90/12/07 jeffreyh]
*
* Revision 2.2 90/11/26 14:48:41 rvb
* Pulled from 2.5
* [90/11/22 10:09:38 rvb]
*
* [90/08/14 mg32]
*
* Now we know how types are factor in.
* Cleaned up a bunch: eliminated ({ for output and flushed unused
* output variables.
* [90/08/14 rvb]
*
* This is how its done in gcc:
* Created.
* [90/03/26 rvb]
*
*/
/* CMU_ENDHIST */
/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or [email protected]
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
*/
#ifndef I386_PIO_H
#define I386_PIO_H
typedef unsigned short i386_ioport_t;
/* read a longword */
extern unsigned long inl(
i386_ioport_t port);
/* read a shortword */
extern unsigned short inw(
i386_ioport_t port);
/* read a byte */
extern unsigned char inb(
i386_ioport_t port);
/* write a longword */
extern void outl(
i386_ioport_t port,
unsigned long datum);
/* write a word */
extern void outw(
i386_ioport_t port,
unsigned short datum);
/* write a longword */
extern void outb(
i386_ioport_t port,
unsigned char datum);
/* input an array of longwords */
extern void linl(
i386_ioport_t port,
int * data,
int count);
/* output an array of longwords */
extern void loutl(
i386_ioport_t port,
int * data,
int count);
/* input an array of words */
extern void linw(
i386_ioport_t port,
int * data,
int count);
/* output an array of words */
extern void loutw(
i386_ioport_t port,
int * data,
int count);
/* input an array of bytes */
extern void linb(
i386_ioport_t port,
char * data,
int count);
/* output an array of bytes */
extern void loutb(
i386_ioport_t port,
char * data,
int count);
extern __inline__ unsigned long inl(
i386_ioport_t port)
{
unsigned long datum;
__asm__ volatile("inl %1, %0" : "=a" (datum) : "d" (port));
return(datum);
}
extern __inline__ unsigned short inw(
i386_ioport_t port)
{
unsigned short datum;
__asm__ volatile(".byte 0x66; inl %1, %0" : "=a" (datum) : "d" (port));
return(datum);
}
extern __inline__ unsigned char inb(
i386_ioport_t port)
{
unsigned char datum;
__asm__ volatile("inb %1, %0" : "=a" (datum) : "d" (port));
return(datum);
}
extern __inline__ void outl(
i386_ioport_t port,
unsigned long datum)
{
__asm__ volatile("outl %0, %1" : : "a" (datum), "d" (port));
}
extern __inline__ void outw(
i386_ioport_t port,
unsigned short datum)
{
__asm__ volatile(".byte 0x66; outl %0, %1" : : "a" (datum), "d" (port));
}
extern __inline__ void outb(
i386_ioport_t port,
unsigned char datum)
{
__asm__ volatile("outb %0, %1" : : "a" (datum), "d" (port));
}
#endif /* I386_PIO_H */