include/mtd/jffs2-user.h

   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__ */