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/* $OpenBSD: pio.h,v 1.6 2001/06/29 06:07:09 drahn Exp $ */
/*
* Copyright (c) 1997 Per Fogelstrom, Opsycon AB and RTMX Inc, USA.
*
* 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 under OpenBSD by
* Per Fogelstrom Opsycon AB for RTMX Inc, North Carolina, USA.
* 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.
*/
void *mapiodev(paddr_t pa, psize_t len);
void unmapiodev(void * va, psize_t len);
static __inline void
__outb(volatile u_int8_t *a, int v)
{
*a = v;
__asm__ volatile("eieio");
}
static __inline void
__outw(volatile u_int16_t *a, u_int16_t v)
{
*a = v;
__asm__ volatile("eieio");
}
static __inline void
__outl(volatile u_int32_t *a, int v)
{
*a = v;
__asm__ volatile("eieio");
}
static __inline void
__outwrb(volatile u_int16_t *a, u_int16_t v)
{
u_int32_t _p_ = (u_int32_t)a;
__asm__ volatile("sthbrx %0, 0, %1" :: "r"(v), "r"(_p_));
__asm__ volatile("eieio");
}
static __inline void
__outlrb(volatile u_int32_t *a, u_int32_t v)
{
u_int32_t _p_ = (u_int32_t)a;
__asm__ volatile("stwbrx %0, 0, %1" :: "r"(v), "r"(_p_));
__asm__ volatile("eieio");
}
static __inline u_int8_t
__inb(volatile u_int8_t *a)
{
u_int8_t _v_;
__asm__ volatile("eieio");
_v_ = *a;
return _v_;
}
static __inline u_int16_t
__inw(volatile u_int16_t *a)
{
u_int16_t _v_;
__asm__ volatile("eieio");
_v_ = *a;
return _v_;
}
static __inline u_int32_t
__inl(volatile u_int32_t *a)
{
u_int32_t _v_;
__asm__ volatile("eieio");
_v_ = *a;
return _v_;
}
static __inline u_int16_t
__inwrb(volatile u_int16_t *a)
{
u_int16_t _v_;
u_int32_t _p_ = (u_int32_t)a;
__asm__ volatile("eieio");
__asm__ volatile("lhbrx %0, 0, %1" : "=r"(_v_) : "r"(_p_));
return _v_;
}
static __inline u_int32_t
__inlrb(volatile u_int32_t *a)
{
u_int32_t _v_;
u_int32_t _p_ = (u_int32_t)a;
__asm__ volatile("eieio");
__asm__ volatile("lwbrx %0, 0, %1" : "=r"(_v_) : "r"(_p_));
return _v_;
}
#define outb(a,v) (__outb((volatile u_int8_t *)(a), v))
#define out8(a,v) outb(a,v)
#define outw(a,v) (__outw((volatile u_int16_t *)(a), v))
#define out16(a,v) outw(a,v)
#define outl(a,v) (__outl((volatile u_int32_t *)(a), v))
#define out32(a,v) outl(a,v)
#define inb(a) (__inb((volatile u_int8_t *)(a)))
#define in8(a) inb(a)
#define inw(a) (__inw((volatile u_int16_t *)(a)))
#define in16(a) inw(a)
#define inl(a) (__inl((volatile u_int32_t *)(a)))
#define in32(a) inl(a)
#define out8rb(a,v) outb(a,v)
#define outwrb(a,v) (__outwrb((volatile u_int16_t *)(a), v))
#define out16rb(a,v) outwrb(a,v)
#define outlrb(a,v) (__outlrb((volatile u_int32_t *)(a), v))
#define out32rb(a,v) outlrb(a,v)
#define in8rb(a) inb(a)
#define inwrb(a) (__inwrb((volatile u_int16_t *)(a)))
#define in16rb(a) inwrb(a)
#define inlrb(a) (__inlrb((volatile u_int32_t *)(a)))
#define in32rb(a) inlrb(a)
#ifdef DEBUG_SPEC
static __inline void
__flash_led(bits, count)
int bits;
{
int i, v = 0;
if(bits == 0) {
v = 1; bits = 3;
}
bits &= 3;
count += count;
v |= (*(volatile u_int8_t *)(MPC106_V_ISA_IO_SPACE + 0x01f4)) & ~3;
while(count--) {
v ^= bits;
for(i = 100000; i > 0; i--)
*(volatile u_int8_t *)(MPC106_V_ISA_IO_SPACE + 0x01f4) = v;
}
*(u_int8_t *)(MPC106_V_ISA_IO_SPACE + 0x01f4) &= ~3;
}
#endif /* DEBUG */
#endif /*_MACHINE_PIO_H_*/
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