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1da177e4 LT |
1 | /* |
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 | ||
22 | extern 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__ */ |