?? pio.h
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/* $OpenBSD: pio.h,v 1.2 1998/09/15 10:50:12 pefo Exp $ *//* * Copyright (c) 1995-1999 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 _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 __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 /* !_MIPS_PIO_H_ */
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