include/asm-sparc/byteorder.h

   1 /* $Id: byteorder.h,v 1.13 1997/05/26 23:37:46 davem Exp $ */
   2 #ifndef _SPARC_BYTEORDER_H
   3 #define _SPARC_BYTEORDER_H
   4
   5 #define ntohl(x) ((unsigned long int)(x))
   6 #define ntohs(x) ((unsigned short int)(x))
   7 #define htonl(x) ((unsigned long int)(x))
   8 #define htons(x) ((unsigned short int)(x))
   9
  10 /* Some programs depend upon these being around. */
  11 #define __constant_ntohl(x) ((unsigned long int)(x))
  12 #define __constant_ntohs(x) ((unsigned short int)(x))
  13 #define __constant_htonl(x) ((unsigned long int)(x))
  14 #define __constant_htons(x) ((unsigned short int)(x))
  15
  16 #ifndef __BIG_ENDIAN
  17 #define __BIG_ENDIAN 4321
  18 #endif
  19
  20 #ifndef __BIG_ENDIAN_BITFIELD
  21 #define __BIG_ENDIAN_BITFIELD
  22 #endif
  23
  24 #ifdef __KERNEL__
  25
  26 /* Convert from CPU byte order, to specified byte order. */
  27 extern __inline__ __u16 cpu_to_le16(__u16 value)
  28 {
  29         return (value >> 8) | (value << 8);
  30 }
  31
  32 extern __inline__ __u32 cpu_to_le32(__u32 value)
  33 {
  34         return((value>>24) | ((value>>8)&0xff00) |
  35                ((value<<8)&0xff0000) | (value<<24));
  36 }
  37 #define cpu_to_be16(x)  (x)
  38 #define cpu_to_be32(x)  (x)
  39
  40 /* Convert from specified byte order, to CPU byte order. */
  41 extern __inline__ __u16 le16_to_cpu(__u16 value)
  42 {
  43         return (value >> 8) | (value << 8);
  44 }
  45
  46 extern __inline__ __u32 le32_to_cpu(__u32 value)
  47 {
  48         return((value>>24) | ((value>>8)&0xff00) |
  49                ((value<<8)&0xff0000) | (value<<24));
  50 }
  51 #define be16_to_cpu(x)  (x)
  52 #define be32_to_cpu(x)  (x)
  53
  54 #endif /* __KERNEL__ */
  55
  56 #endif /* !(_SPARC_BYTEORDER_H) */