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/* $OpenBSD: pio.h,v 1.2 1998/09/15 10:50:12 pefo Exp $ */
/*
* Copyright (c) 1995 Per Fogelstrom. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Per Fogelstrom.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MACHINE_PIO_H_
#define _MACHINE_PIO_H_
/*
* I/O macros.
*/
#define outb(a,v) (*(volatile unsigned char*)(a) = (v))
#define out8(a,v) (*(volatile unsigned char*)(a) = (v))
#define outw(a,v) (*(volatile unsigned short*)(a) = (v))
#define out16(a,v) outw(a,v)
#define outl(a,v) (*(volatile unsigned int*)(a) = (v))
#define out32(a,v) outl(a,v)
#define inb(a) (*(volatile unsigned char*)(a))
#define in8(a) (*(volatile unsigned char*)(a))
#define inw(a) (*(volatile unsigned short*)(a))
#define in16(a) inw(a)
#define inl(a) (*(volatile unsigned int*)(a))
#define in32(a) inl(a)
#define out8rb(a,v) (*(volatile unsigned char*)(a) = (v))
#define out16rb(a,v) (__out16rb((volatile u_int16_t *)(a), v))
#define out32rb(a,v) (__out32rb((volatile u_int32_t *)(a), v))
#define in8rb(a) (*(volatile unsigned char*)(a))
#define in16rb(a) (__in16rb((volatile u_int16_t *)(a)))
#define in32rb(a) (__in32rb((volatile u_int32_t *)(a)))
#define _swap_(x) \
(((x) >> 24) | ((x) << 24) | \
(((x) >> 8) & 0xff00) | (((x) & 0xff00) << 8))
static __inline void __out32rb __P((volatile u_int32_t *, u_int32_t));
static __inline void __out16rb __P((volatile u_int16_t *, u_int16_t));
static __inline u_int32_t __in32rb __P((volatile u_int32_t *));
static __inline u_int16_t __in16rb __P((volatile u_int16_t *));
static __inline void
__out32rb(a,v)
volatile u_int32_t *a;
u_int32_t v;
{
u_int32_t _v_ = v;
_v_ = _swap_(_v_);
out32(a, _v_);
}
static __inline void
__out16rb(a,v)
volatile u_int16_t *a;
u_int16_t v;
{
u_int16_t _v_;
_v_ = ((v >> 8) & 0xff) | (v << 8);
out16(a, _v_);
}
static __inline u_int32_t
__in32rb(a)
volatile u_int32_t *a;
{
u_int32_t _v_;
_v_ = in32(a);
_v_ = _swap_(_v_);
return _v_;
}
static __inline u_int16_t
__in16rb(a)
volatile u_int16_t *a;
{
u_int16_t _v_;
_v_ = in16(a);
_v_ = ((_v_ >> 8) & 0xff) | (_v_ << 8);
return _v_;
}
void insb __P((u_int8_t *, u_int8_t *,int));
void insw __P((u_int16_t *, u_int16_t *,int));
void insl __P((u_int32_t *, u_int32_t *,int));
void outsb __P((u_int8_t *, const u_int8_t *,int));
void outsw __P((u_int16_t *, const u_int16_t *,int));
void outsl __P((u_int32_t *, const u_int32_t *,int));
#endif /*_MACHINE_PIO_H_*/
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