include/mtd/jffs2-user.h

   1 /*
   2  * JFFS2 definitions for use in user space only
   3  */
   4
   5 #ifndef __JFFS2_USER_H__
   6 #define __JFFS2_USER_H__
   7
   8 /* This file is blessed for inclusion by userspace */
   9 #include <linux/jffs2.h>
  10 #include <endian.h>
  11 #include <byteswap.h>
  12
  13 #undef cpu_to_je16
  14 #undef cpu_to_je32
  15 #undef cpu_to_jemode
  16 #undef je16_to_cpu
  17 #undef je32_to_cpu
  18 #undef jemode_to_cpu
  19
  20 extern int target_endian;
  21
  22 #define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
  23 #define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
  24
  25 #define cpu_to_je16(x) ((jint16_t){t16(x)})
  26 #define cpu_to_je32(x) ((jint32_t){t32(x)})
  27 #define cpu_to_jemode(x) ((jmode_t){t32(x)})
  28
  29 #define je16_to_cpu(x) (t16((x).v16))
  30 #define je32_to_cpu(x) (t32((x).v32))
  31 #define jemode_to_cpu(x) (t32((x).m))
  32
  33 #endif /* __JFFS2_USER_H__ */