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William Juulcfa460a2007-10-31 13:53:06 +01001/*
2 * $Id: jffs2-user.h,v 1.1 2004/05/05 11:57:54 dwmw2 Exp $
3 *
4 * JFFS2 definitions for use in user space only
5 */
6
7#ifndef __JFFS2_USER_H__
8#define __JFFS2_USER_H__
9
10/* This file is blessed for inclusion by userspace */
11#include <linux/jffs2.h>
12#include <endian.h>
13#include <byteswap.h>
14
15#undef cpu_to_je16
16#undef cpu_to_je32
17#undef cpu_to_jemode
18#undef je16_to_cpu
19#undef je32_to_cpu
20#undef jemode_to_cpu
21
22extern int target_endian;
23
24#define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
25#define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
26
27#define cpu_to_je16(x) ((jint16_t){t16(x)})
28#define cpu_to_je32(x) ((jint32_t){t32(x)})
29#define cpu_to_jemode(x) ((jmode_t){t32(x)})
30
31#define je16_to_cpu(x) (t16((x).v16))
32#define je32_to_cpu(x) (t32((x).v32))
33#define jemode_to_cpu(x) (t32((x).m))
34
35#endif /* __JFFS2_USER_H__ */