1/*
 2 *   Copyright (C) International Business Machines Corp., 2001
 3 *
 4 *   This program is free software;  you can redistribute it and/or modify
 5 *   it under the terms of the GNU General Public License as published by
 6 *   the Free Software Foundation; either version 2 of the License, or
 7 *   (at your option) any later version.
 8 *
 9 *   This program is distributed in the hope that it will be useful,
10 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
11 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
12 *   the GNU General Public License for more details.
13 *
14 *   You should have received a copy of the GNU General Public License
15 *   along with this program;  if not, write to the Free Software
16 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18#ifndef _H_ENDIAN24
19#define	_H_ENDIAN24
20
21/*
22 *	endian24.h:
23 *
24 * Endian conversion for 24-byte data
25 *
26 */
27#define __swab24(x) \
28({ \
29	__u32 __x = (x); \
30	((__u32)( \
31		((__x & (__u32)0x000000ffUL) << 16) | \
32		 (__x & (__u32)0x0000ff00UL)	    | \
33		((__x & (__u32)0x00ff0000UL) >> 16) )); \
34})
35
36#if (defined(__KERNEL__) && defined(__LITTLE_ENDIAN)) || (defined(__BYTE_ORDER) && (__BYTE_ORDER == __LITTLE_ENDIAN))
37	#define __cpu_to_le24(x) ((__u32)(x))
38	#define __le24_to_cpu(x) ((__u32)(x))
39#else
40	#define __cpu_to_le24(x) __swab24(x)
41	#define __le24_to_cpu(x) __swab24(x)
42#endif
43
44#ifdef __KERNEL__
45	#define cpu_to_le24 __cpu_to_le24
46	#define le24_to_cpu __le24_to_cpu
47#endif
48
49#endif				/* !_H_ENDIAN24 */