xenocara/driver/xf86-video-chips/util/AsmMacros.h

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2006-11-26 13:01:26 -07:00
/*
* (c) Copyright 1993,1994 by David Wexelblat <dwex@xfree86.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* DAVID WEXELBLAT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of David Wexelblat shall not be
* used in advertising or otherwise to promote the sale, use or other dealings
* in this Software without prior written authorization from David Wexelblat.
*
*/
/*
* Copyright 1997
* Digital Equipment Corporation. All rights reserved.
* This software is furnished under license and may be used and copied only in
* accordance with the following terms and conditions. Subject to these
* conditions, you may download, copy, install, use, modify and distribute
* this software in source and/or binary form. No title or ownership is
* transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce and retain
* this copyright notice and list of conditions as they appear in the source
* file.
*
* 2) No right is granted to use any trade name, trademark, or logo of Digital
* Equipment Corporation. Neither the "Digital Equipment Corporation" name
* nor any trademark or logo of Digital Equipment Corporation may be used
* to endorse or promote products derived from this software without the
* prior written permission of Digital Equipment Corporation.
*
* 3) This software is provided "AS-IS" and any express or implied warranties,
* including but not limited to, any implied warranties of merchantability,
* fitness for a particular purpose, or non-infringement are disclaimed. In
* no event shall DIGITAL be liable for any damages whatsoever, and in
* particular, DIGITAL shall not be liable for special, indirect,
* consequential, or incidental damages or damages for
* lost profits, loss of revenue or loss of use, whether such damages arise
* in contract,
* negligence, tort, under statute, in equity, at law or otherwise, even if
* advised of the possibility of such damage.
*
*/
#if defined(__GNUC__)
#if defined(linux) && (defined(__alpha__) || defined(__ia64__))
#undef inb
#undef inw
#undef inl
#undef outb
#undef outw
#undef outl
#define inb _inb
#define inw _inw
#define inl _inl
#define outb(p,v) _outb((v),(p))
#define outw(p,v) _outw((v),(p))
#define outl(p,v) _outl((v),(p))
#else
#if defined(__sparc__)
#ifndef ASI_PL
#define ASI_PL 0x88
#endif
static __inline__ void
outb(port, val)
unsigned long port;
char val;
{
__asm__ __volatile__("stba %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL));
}
static __inline__ void
outw(port, val)
unsigned long port;
char val;
{
__asm__ __volatile__("stha %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL));
}
static __inline__ void
outl(port, val)
unsigned long port;
char val;
{
__asm__ __volatile__("sta %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL));
}
static __inline__ unsigned int
inb(port)
unsigned long port;
{
unsigned char ret;
__asm__ __volatile__("lduba [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL));
return ret;
}
static __inline__ unsigned int
inw(port)
unsigned long port;
{
unsigned char ret;
__asm__ __volatile__("lduha [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL));
return ret;
}
static __inline__ unsigned int
inl(port)
unsigned long port;
{
unsigned char ret;
__asm__ __volatile__("lda [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL));
return ret;
}
#else
#ifdef __arm32__
unsigned int IOPortBase; /* Memory mapped I/O port area */
static __inline__ void
outb(port, val)
short port;
char val;
{
if ((unsigned short)port >= 0x400) return;
*(volatile unsigned char*)(((unsigned short)(port))+IOPortBase) = val;
}
static __inline__ void
outw(port, val)
short port;
short val;
{
if ((unsigned short)port >= 0x400) return;
*(volatile unsigned short*)(((unsigned short)(port))+IOPortBase) = val;
}
static __inline__ void
outl(port, val)
short port;
int val;
{
if ((unsigned short)port >= 0x400) return;
*(volatile unsigned long*)(((unsigned short)(port))+IOPortBase) = val;
}
static __inline__ unsigned int
inb(port)
short port;
{
if ((unsigned short)port >= 0x400) return((unsigned int)-1);
return(*(volatile unsigned char*)(((unsigned short)(port))+IOPortBase));
}
static __inline__ unsigned int
inw(port)
short port;
{
if ((unsigned short)port >= 0x400) return((unsigned int)-1);
return(*(volatile unsigned short*)(((unsigned short)(port))+IOPortBase));
}
static __inline__ unsigned int
inl(port)
short port;
{
if ((unsigned short)port >= 0x400) return((unsigned int)-1);
return(*(volatile unsigned long*)(((unsigned short)(port))+IOPortBase));
}
#else /* __arm32__ */
#if defined(Lynx) && defined(__powerpc__)
extern unsigned char *ioBase;
static volatile void
eieio()
{
__asm__ __volatile__ ("eieio");
}
static void
outb(port, value)
short port;
unsigned char value;
{
*(uchar *)(ioBase + port) = value; eieio();
}
static void
outw(port, value)
short port;
unsigned short value;
{
*(unsigned short *)(ioBase + port) = value; eieio();
}
static void
outl(port, value)
short port;
unsigned long value;
{
*(unsigned long *)(ioBase + port) = value; eieio();
}
static unsigned char
inb(port)
short port;
{
unsigned char val;
val = *((unsigned char *)(ioBase + port)); eieio();
return(val);
}
static unsigned short
inw(port)
short port;
{
unsigned short val;
val = *((unsigned short *)(ioBase + port)); eieio();
return(val);
}
static unsigned long
inl(port)
short port;
{
unsigned long val;
val = *((unsigned long *)(ioBase + port)); eieio();
return(val);
}
#else
#if defined(__FreeBSD__) && defined(__alpha__)
#include <sys/types.h>
extern void outb(u_int32_t port, u_int8_t val);
extern void outw(u_int32_t port, u_int16_t val);
extern void outl(u_int32_t port, u_int32_t val);
extern u_int8_t inb(u_int32_t port);
extern u_int16_t inw(u_int32_t port);
extern u_int32_t inl(u_int32_t port);
#else
#ifdef GCCUSESGAS
static __inline__ void
outb(port, val)
short port;
char val;
{
__asm__ __volatile__("outb %0,%1" : :"a" (val), "d" (port));
}
static __inline__ void
outw(port, val)
short port;
short val;
{
__asm__ __volatile__("outw %0,%1" : :"a" (val), "d" (port));
}
static __inline__ void
outl(port, val)
short port;
unsigned int val;
{
__asm__ __volatile__("outl %0,%1" : :"a" (val), "d" (port));
}
static __inline__ unsigned int
inb(port)
short port;
{
unsigned char ret;
__asm__ __volatile__("inb %1,%0" :
"=a" (ret) :
"d" (port));
return ret;
}
static __inline__ unsigned int
inw(port)
short port;
{
unsigned short ret;
__asm__ __volatile__("inw %1,%0" :
"=a" (ret) :
"d" (port));
return ret;
}
static __inline__ unsigned int
inl(port)
short port;
{
unsigned int ret;
__asm__ __volatile__("inl %1,%0" :
"=a" (ret) :
"d" (port));
return ret;
}
#else /* GCCUSESGAS */
static __inline__ void
outb(port, val)
short port;
char val;
{
__asm__ __volatile__("out%B0 (%1)" : :"a" (val), "d" (port));
}
static __inline__ void
outw(port, val)
short port;
short val;
{
__asm__ __volatile__("out%W0 (%1)" : :"a" (val), "d" (port));
}
static __inline__ void
outl(port, val)
short port;
unsigned int val;
{
__asm__ __volatile__("out%L0 (%1)" : :"a" (val), "d" (port));
}
static __inline__ unsigned int
inb(port)
short port;
{
unsigned int ret;
__asm__ __volatile__("in%B0 (%1)" :
"=a" (ret) :
"d" (port));
return ret;
}
static __inline__ unsigned int
inw(port)
short port;
{
unsigned int ret;
__asm__ __volatile__("in%W0 (%1)" :
"=a" (ret) :
"d" (port));
return ret;
}
static __inline__ unsigned int
inl(port)
short port;
{
unsigned int ret;
__asm__ __volatile__("in%L0 (%1)" :
"=a" (ret) :
"d" (port));
return ret;
}
#endif /* GCCUSESGAS */
#endif /* Lynx && __powerpc__ */
#endif /* arm32 */
#endif /* linux && __sparc__ */
#endif /* linux && __alpha__ */
#endif /* __FreeBSD__ && __alpha__ */
#if defined(linux) || defined(__arm32__) || (defined(Lynx) && defined(__powerpc__))
#define intr_disable()
#define intr_enable()
#else
static __inline__ void
intr_disable()
{
__asm__ __volatile__("cli");
}
static __inline__ void
intr_enable()
{
__asm__ __volatile__("sti");
}
#endif /* else !linux && !__arm32__ */
#else /* __GNUC__ */
#if defined(_MINIX) && defined(_ACK)
/* inb, outb, inw and outw are defined in the library */
/* ... but I've no idea if the same is true for inl & outl */
u8_t inb(U16_t);
void outb(U16_t, U8_t);
u16_t inw(U16_t);
void outw(U16_t, U16_t);
u32_t inl(U16_t);
void outl(U16_t, U32_t);
#else /* not _MINIX and _ACK */
# if defined(__STDC__) && (__STDC__ == 1)
# ifndef NCR
# define asm __asm
# endif
# endif
# ifdef SVR4
# include <sys/types.h>
# ifndef __USLC__
# define __USLC__
# endif
# endif
# ifndef __SCO__
# include <sys/inline.h>
# else
# include "../common/scoasm.h"
# endif
# define intr_disable() asm("cli")
# define intr_enable() asm("sti")
#endif /* _MINIX and _ACK */
#endif /* __GNUC__ */