174 lines
4.3 KiB
C
174 lines
4.3 KiB
C
/* $NetBSD: pio.h,v 1.2 1997/11/27 10:18:51 sakamoto Exp $ */
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/* $OpenBSD: pio.h,v 1.1 1997/10/13 10:53:47 pefo Exp $ */
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/*
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* Copyright (c) 1997 Per Fogelstrom, Opsycon AB and RTMX Inc, USA.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed under OpenBSD by
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* Per Fogelstrom Opsycon AB for RTMX Inc, North Carolina, USA.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _MACHINE_PIO_H_
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#define _MACHINE_PIO_H_
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/*
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* I/O macros.
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*/
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static __inline void
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__outb(a,v)
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volatile u_int8_t *a;
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int v;
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{
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*a = v;
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__asm__ volatile("eieio; sync");
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}
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static __inline void
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__outw(a,v)
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volatile u_int16_t *a;
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u_int16_t v;
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{
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*a = v;
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__asm__ volatile("eieio; sync");
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}
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static __inline void
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__outl(a,v)
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volatile u_int32_t *a;
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int v;
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{
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*a = v;
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__asm__ volatile("eieio; sync");
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}
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static __inline void
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__outwrb(a,v)
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volatile u_int16_t *a;
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u_int16_t v;
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{
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u_int32_t _p_ = (u_int32_t)a;
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__asm__ volatile("sthbrx %0, 0, %1" :: "r"(v), "r"(_p_));
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__asm__ volatile("eieio; sync");
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}
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static __inline void
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__outlrb(a,v)
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volatile u_int32_t *a;
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u_int32_t v;
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{
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u_int32_t _p_ = (u_int32_t)a;
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__asm__ volatile("stwbrx %0, 0, %1" :: "r"(v), "r"(_p_));
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__asm__ volatile("eieio; sync");
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}
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static __inline u_int8_t
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__inb(a)
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volatile u_int8_t *a;
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{
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u_int8_t _v_;
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_v_ = *a;
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__asm__ volatile("eieio; sync");
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return _v_;
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}
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static __inline u_int16_t
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__inw(a)
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volatile u_int16_t *a;
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{
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u_int16_t _v_;
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_v_ = *a;
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__asm__ volatile("eieio; sync");
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return _v_;
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}
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static __inline u_int32_t
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__inl(a)
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volatile u_int32_t *a;
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{
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u_int32_t _v_;
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_v_ = *a;
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__asm__ volatile("eieio; sync");
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return _v_;
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}
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static __inline u_int16_t
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__inwrb(a)
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volatile u_int16_t *a;
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{
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u_int16_t _v_;
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u_int32_t _p_ = (u_int32_t)a;
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__asm__ volatile("lhbrx %0, 0, %1" : "=r"(_v_) : "r"(_p_));
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__asm__ volatile("eieio; sync");
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return _v_;
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}
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static __inline u_int32_t
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__inlrb(a)
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volatile u_int32_t *a;
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{
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u_int32_t _v_;
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u_int32_t _p_ = (u_int32_t)a;
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__asm__ volatile("lwbrx %0, 0, %1" : "=r"(_v_) : "r"(_p_));
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__asm__ volatile("eieio; sync");
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return _v_;
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}
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#define outb(a,v) (__outb((volatile u_int8_t *)(a), v))
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#define out8(a,v) outb(a,v)
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#define outw(a,v) (__outw((volatile u_int16_t *)(a), v))
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#define out16(a,v) outw(a,v)
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#define outl(a,v) (__outl((volatile u_int32_t *)(a), v))
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#define out32(a,v) outl(a,v)
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#define inb(a) (__inb((volatile u_int8_t *)(a)))
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#define in8(a) inb(a)
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#define inw(a) (__inw((volatile u_int16_t *)(a)))
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#define in16(a) inw(a)
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#define inl(a) (__inl((volatile u_int32_t *)(a)))
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#define in32(a) inl(a)
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#define out8rb(a,v) outb(a,v)
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#define outwrb(a,v) (__outwrb((volatile u_int16_t *)(a), v))
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#define out16rb(a,v) outwrb(a,v)
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#define outlrb(a,v) (__outlrb((volatile u_int32_t *)(a), v))
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#define out32rb(a,v) outlrb(a,v)
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#define in8rb(a) inb(a)
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#define inwrb(a) (__inwrb((volatile u_int16_t *)(a)))
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#define in16rb(a) inwrb(a)
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#define inlrb(a) (__inlrb((volatile u_int32_t *)(a)))
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#define in32rb(a) inlrb(a)
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#endif /*_MACHINE_PIO_H_*/
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