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/* Copyright (C) 1996, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
* June 16, 2001 hacked for uClibc inclusion by Manuel Novoa III
*
* This was originally sys/io.h from glibc-2.2.2. However, uClibc
* currently shares the same sys/io.h for all archs. So, I placed
* moved and renamed it to bits/io_i386.h and modified sys/io.h to
* conditionally include this if __i386__ was defined.
*/
#if !defined _SYS_IO_H || defined _BITS_IO_I386_H
#error Never include <bits/io_i386.h> directly; use <sys/io.h> instead.
#endif
#define _BITS_IO_I386_H 1
#if defined __GNUC__ && __GNUC__ >= 2
static __inline unsigned char
inb (unsigned short int port)
{
unsigned char _v;
__asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
return _v;
}
static __inline unsigned char
inb_p (unsigned short int port)
{
unsigned char _v;
__asm__ __volatile__ ("inb %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
return _v;
}
static __inline unsigned short int
inw (unsigned short int port)
{
unsigned short _v;
__asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (port));
return _v;
}
static __inline unsigned short int
inw_p (unsigned short int port)
{
unsigned short int _v;
__asm__ __volatile__ ("inw %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
return _v;
}
static __inline unsigned int
inl (unsigned short int port)
{
unsigned int _v;
__asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (port));
return _v;
}
static __inline unsigned int
inl_p (unsigned short int port)
{
unsigned int _v;
__asm__ __volatile__ ("inl %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
return _v;
}
static __inline void
outb (unsigned char value, unsigned short int port)
{
__asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
}
static __inline void
outb_p (unsigned char value, unsigned short int port)
{
__asm__ __volatile__ ("outb %b0,%w1\noutb %%al,$0x80": :"a" (value),
"Nd" (port));
}
static __inline void
outw (unsigned short int value, unsigned short int port)
{
__asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port));
}
static __inline void
outw_p (unsigned short int value, unsigned short int port)
{
__asm__ __volatile__ ("outw %w0,%w1\noutb %%al,$0x80": :"a" (value),
"Nd" (port));
}
static __inline void
outl (unsigned int value, unsigned short int port)
{
__asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port));
}
static __inline void
outl_p (unsigned int value, unsigned short int port)
{
__asm__ __volatile__ ("outl %0,%w1\noutb %%al,$0x80": :"a" (value),
"Nd" (port));
}
static __inline void
insb (unsigned short int port, void *addr, unsigned long int count)
{
__asm__ __volatile__ ("cld ; rep ; insb":"=D" (addr),
"=c" (count):"d" (port), "0" (addr), "1" (count));
}
static __inline void
insw (unsigned short int port, void *addr, unsigned long int count)
{
__asm__ __volatile__ ("cld ; rep ; insw":"=D" (addr),
"=c" (count):"d" (port), "0" (addr), "1" (count));
}
static __inline void
insl (unsigned short int port, void *addr, unsigned long int count)
{
__asm__ __volatile__ ("cld ; rep ; insl":"=D" (addr),
"=c" (count):"d" (port), "0" (addr), "1" (count));
}
static __inline void
outsb (unsigned short int port, const void *addr, unsigned long int count)
{
__asm__ __volatile__ ("cld ; rep ; outsb":"=S" (addr),
"=c" (count):"d" (port), "0" (addr), "1" (count));
}
static __inline void
outsw (unsigned short int port, const void *addr, unsigned long int count)
{
__asm__ __volatile__ ("cld ; rep ; outsw":"=S" (addr),
"=c" (count):"d" (port), "0" (addr), "1" (count));
}
static __inline void
outsl (unsigned short int port, const void *addr, unsigned long int count)
{
__asm__ __volatile__ ("cld ; rep ; outsl":"=S" (addr),
"=c" (count):"d" (port), "0" (addr), "1" (count));
}
#endif /* GNU C */
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