include/linux/mtd/cfi_endian.h

   1 /*
   2  * $Id: cfi_endian.h,v 1.11 2002/01/30 23:20:48 awozniak Exp $
   3  *
   4  */
   5
   6 #include <asm/byteorder.h>
   7
   8 #ifndef CONFIG_MTD_CFI_ADV_OPTIONS
   9
  10 #define CFI_HOST_ENDIAN
  11
  12 #else
  13
  14 #ifdef CONFIG_MTD_CFI_NOSWAP
  15 #define CFI_HOST_ENDIAN
  16 #endif
  17
  18 #ifdef CONFIG_MTD_CFI_LE_BYTE_SWAP
  19 #define CFI_LITTLE_ENDIAN
  20 #endif
  21
  22 #ifdef CONFIG_MTD_CFI_BE_BYTE_SWAP
  23 #define CFI_BIG_ENDIAN
  24 #endif
  25
  26 #endif
  27
  28 #if defined(CFI_LITTLE_ENDIAN)
  29 #define cpu_to_cfi8(x) (x)
  30 #define cfi8_to_cpu(x) (x)
  31 #define cpu_to_cfi16(x) cpu_to_le16(x)
  32 #define cpu_to_cfi32(x) cpu_to_le32(x)
  33 #define cpu_to_cfi64(x) cpu_to_le64(x)
  34 #define cfi16_to_cpu(x) le16_to_cpu(x)
  35 #define cfi32_to_cpu(x) le32_to_cpu(x)
  36 #define cfi64_to_cpu(x) le64_to_cpu(x)
  37 #elif defined (CFI_BIG_ENDIAN)
  38 #define cpu_to_cfi8(x) (x)
  39 #define cfi8_to_cpu(x) (x)
  40 #define cpu_to_cfi16(x) cpu_to_be16(x)
  41 #define cpu_to_cfi32(x) cpu_to_be32(x)
  42 #define cpu_to_cfi64(x) cpu_to_be64(x)
  43 #define cfi16_to_cpu(x) be16_to_cpu(x)
  44 #define cfi32_to_cpu(x) be32_to_cpu(x)
  45 #define cfi64_to_cpu(x) be64_to_cpu(x)
  46 #elif defined (CFI_HOST_ENDIAN)
  47 #define cpu_to_cfi8(x) (x)
  48 #define cfi8_to_cpu(x) (x)
  49 #define cpu_to_cfi16(x) (x)
  50 #define cpu_to_cfi32(x) (x)
  51 #define cpu_to_cfi64(x) (x)
  52 #define cfi16_to_cpu(x) (x)
  53 #define cfi32_to_cpu(x) (x)
  54 #define cfi64_to_cpu(x) (x)
  55 #else
  56 #error No CFI endianness defined
  57 #endif