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/*
* 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 Software.Distribution@CS.CMU.EDU
* 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 _MACH_I386_PIO_H_
#define _MACH_I386_PIO_H_
#ifdef __GNUC__
#define inl(port) \
({ unsigned long _tmp__; \
asm volatile("inl %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(port))); \
_tmp__; })
#define inw(port) \
({ unsigned short _tmp__; \
asm volatile(".byte 0x66; inl %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(port))); \
_tmp__; })
#define inb(port) \
({ unsigned char _tmp__; \
asm volatile("inb %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(port))); \
_tmp__; })
#define outl(port, val) \
({ asm volatile("outl %0, %1" : : "a" (val) , "d" ((unsigned short)(port))); })
#define outw(port, val) \
({asm volatile(".byte 0x66; outl %0, %1" : : "a" ((unsigned short)(val)) , "d" ((unsigned short)(port))); })
#define outb(port, val) \
({ asm volatile("outb %0, %1" : : "a" ((unsigned char)(val)) , "d" ((unsigned short)(port))); })
/* Inline code works just as well for 16-bit code as for 32-bit. */
#define i16_inl(port) inl(port)
#define i16_inw(port) inw(port)
#define i16_inb(port) inb(port)
#define i16_outl(port, val) outl(port, val)
#define i16_outw(port, val) outw(port, val)
#define i16_outb(port, val) outb(port, val)
#endif __GNUC__
#endif /* _MACH_I386_PIO_H_ */
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