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/*
* This file is part of the dmidecode project.
*
* Copyright (C) 2002-2008 Jean Delvare <khali@linux-fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open unpatent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*/
#ifndef TYPES_H
#define TYPES_H
#include "config.h"
typedef unsigned char u8;
typedef unsigned short u16;
typedef signed short i16;
typedef unsigned int u32;
/*
* You may use the following defines to adjust the type definitions
* depending on the architecture:
* - Define BIGENDIAN on big-endian systems. Untested, as all target
* systems to date are little-endian.
* - Define ALIGNMENT_WORKAROUND if your system doesn't support
* non-aligned memory access. In this case, we use a slower, but safer,
* memory access method. This should be done automatically in config.h
* for architectures which need it.
*/
#ifdef BIGENDIAN
typedef struct {
u32 h;
u32 l;
} u64;
#else
typedef struct {
u32 l;
u32 h;
} u64;
#endif
#ifdef ALIGNMENT_WORKAROUND
static inline u64 U64(u32 low, u32 high)
{
u64 self;
self.l = low;
self.h = high;
return self;
}
#endif
#ifdef ALIGNMENT_WORKAROUND
# ifdef BIGENDIAN
# define WORD(x) (u16)((x)[1]+((x)[0]<<8))
# define DWORD(x) (u32)((x)[3]+((x)[2]<<8)+((x)[1]<<16)+((x)[0]<<24))
# define QWORD(x) (U64(DWORD(x+4), DWORD(x)))
# else /* BIGENDIAN */
# define WORD(x) (u16)((x)[0]+((x)[1]<<8))
# define DWORD(x) (u32)((x)[0]+((x)[1]<<8)+((x)[2]<<16)+((x)[3]<<24))
# define QWORD(x) (U64(DWORD(x), DWORD(x+4)))
# endif /* BIGENDIAN */
#else /* ALIGNMENT_WORKAROUND */
#define WORD(x) (u16)(*(const u16 *)(x))
#define DWORD(x) (u32)(*(const u32 *)(x))
#define QWORD(x) (*(const u64 *)(x))
#endif /* ALIGNMENT_WORKAROUND */
#endif
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