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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Alan Korr
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _ENDIAN_H_
#define _ENDIAN_H_
#ifndef _RBENDIAN_H_
/* this only defines what may be substituted in the native endian.h */
#error "Include rbendian.h instead."
#endif
#define __ENDIAN_H_NATIVE_RB
#ifdef NEED_GENERIC_BYTESWAPS
static inline uint16_t swap16_hw(uint16_t value)
/*
* result[15..8] = value[ 7..0];
* result[ 7..0] = value[15..8];
*/
{
return (value >> 8) | (value << 8);
}
static inline uint32_t swap32_hw(uint32_t value)
/*
* result[31..24] = value[ 7.. 0];
* result[23..16] = value[15.. 8];
* result[15.. 8] = value[23..16];
* result[ 7.. 0] = value[31..24];
*/
{
uint32_t hi = swap16_hw(value >> 16);
uint32_t lo = swap16_hw(value & 0xffff);
return (lo << 16) | hi;
}
#endif /* NEED_GENERIC_BYTESWAPS */
static FORCE_INLINE uint64_t swap64_hw(uint64_t x)
{ return swap32_hw((uint32_t)(x >> 32)) |
((uint64_t)swap32_hw((uint32_t)x) << 32); }
#endif /* _ENDIAN_H_ */
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