/* $NetBSD: xlate.h,v 1.2 2014/02/20 02:09:58 joerg Exp $ */
/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser 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
*/
#ifndef _LVM_XLATE_H
#define _LVM_XLATE_H
#ifdef linux
# include <endian.h>
# include <byteswap.h>
#elif defined(__NetBSD__)
# include <sys/endian.h>
# define bswap_16(x) bswap16(x)
# define bswap_32(x) bswap32(x)
# define bswap_64(x) bswap64(x)
#else
# include <machine/endian.h>
# define bswap_16(x) (((x) & 0x00ffU) << 8 | \
((x) & 0xff00U) >> 8)
# define bswap_32(x) (((x) & 0x000000ffU) << 24 | \
((x) & 0xff000000U) >> 24 | \
((x) & 0x0000ff00U) << 8 | \
((x) & 0x00ff0000U) >> 8)
# define bswap_64(x) (((x) & 0x00000000000000ffULL) << 56 | \
((x) & 0xff00000000000000ULL) >> 56 | \
((x) & 0x000000000000ff00ULL) << 40 | \
((x) & 0x00ff000000000000ULL) >> 40 | \
((x) & 0x0000000000ff0000ULL) << 24 | \
((x) & 0x0000ff0000000000ULL) >> 24 | \
((x) & 0x00000000ff000000ULL) << 8 | \
((x) & 0x000000ff00000000ULL) >> 8)
#endif
#if BYTE_ORDER == LITTLE_ENDIAN
# define xlate16(x) (x)
# define xlate32(x) (x)
# define xlate64(x) (x)
# define xlate16_be(x) bswap_16(x)
# define xlate32_be(x) bswap_32(x)
# define xlate64_be(x) bswap_64(x)
#elif BYTE_ORDER == BIG_ENDIAN
# define xlate16(x) bswap_16(x)
# define xlate32(x) bswap_32(x)
# define xlate64(x) bswap_64(x)
# define xlate16_be(x) (x)
# define xlate32_be(x) (x)
# define xlate64_be(x) (x)
#else
# include <asm/byteorder.h>
# define xlate16(x) __cpu_to_le16((x))
# define xlate32(x) __cpu_to_le32((x))
# define xlate64(x) __cpu_to_le64((x))
# define xlate16_be(x) __cpu_to_be16((x))
# define xlate32_be(x) __cpu_to_be32((x))
# define xlate64_be(x) __cpu_to_be64((x))
#endif
#endif
