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/* $OpenBSD: pio.h,v 1.3 2004/08/10 20:28:13 deraadt Exp $ */
/*
* Copyright (c) 2001-2003 Opsycon AB (www.opsycon.se / www.opsycon.com)
*
* 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.
*
* 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 _MIPS_PIO_H_
#define _MIPS_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(volatile u_int32_t *, u_int32_t);
static __inline void __out16rb(volatile u_int16_t *, u_int16_t);
static __inline u_int32_t __in32rb(volatile u_int32_t *);
static __inline u_int16_t __in16rb(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(u_int8_t *, u_int8_t *,int);
void insw(u_int16_t *, u_int16_t *,int);
void insl(u_int32_t *, u_int32_t *,int);
void outsb(u_int8_t *, const u_int8_t *,int);
void outsw(u_int16_t *, const u_int16_t *,int);
void outsl(u_int32_t *, const u_int32_t *,int);
/* Helper function to access bus 64 bit at at time in LP32 mode */
u_int64_t lp32_read8(u_int64_t *);
void lp32_write8(u_int64_t *, u_int64_t);
#endif /* !_MIPS_PIO_H_ */
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