Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | Download | RSS feed

  1. #ifndef _LINUX_BYTEORDER_PDP_ENDIAN_H
  2. #define _LINUX_BYTEORDER_PDP_ENDIAN_H
  3.  
  4. /*
  5.  * Could have been named NUXI-endian, but we use the same name as in glibc.
  6.  * hopefully only the PDP and its evolutions (old VAXen in compatibility mode)
  7.  * should ever use this braindead byteorder.
  8.  * This file *should* work, but has not been tested.
  9.  *
  10.  * little-endian is 1234; big-endian is 4321; nuxi/pdp-endian is 3412
  11.  *
  12.  * I thought vaxen were NUXI-endian, but was told they were correct-endian
  13.  * (little-endian), though indeed there existed NUXI-endian machines
  14.  * (DEC PDP-11 and old VAXen in compatibility mode).
  15.  * This makes this file a bit useless, but as a proof-of-concept.
  16.  *
  17.  * But what does a __u64 look like: is it 34127856 or 78563412 ???
  18.  * I don't dare imagine! Hence, no 64-bit byteorder support yet.
  19.  * Hopefully, there 64-bit pdp-endian support shouldn't ever be required.
  20.  *
  21.  */
  22.  
  23. #ifndef __PDP_ENDIAN
  24. #define __PDP_ENDIAN 3412
  25. #endif
  26. #ifndef __PDP_ENDIAN_BITFIELD
  27. #define __PDP_ENDIAN_BITFIELD
  28. #endif
  29.  
  30. #include <linux/byteorder/swab.h>
  31. #include <linux/byteorder/swabb.h>
  32.  
  33. #define __constant_htonl(x) ___constant_swahb32((x))
  34. #define __constant_ntohl(x) ___constant_swahb32((x))
  35. #define __constant_htons(x) ___constant_swab16((x))
  36. #define __constant_ntohs(x) ___constant_swab16((x))
  37. #define __constant_cpu_to_le64(x) I DON'T KNOW
  38. #define __constant_le64_to_cpu(x) I DON'T KNOW
  39. #define __constant_cpu_to_le32(x) ___constant_swahw32((x))
  40. #define __constant_le32_to_cpu(x) ___constant_swahw32((x))
  41. #define __constant_cpu_to_le16(x) ((__u16)(x)
  42. #define __constant_le16_to_cpu(x) ((__u16)(x)
  43. #define __constant_cpu_to_be64(x) I DON'T KNOW
  44. #define __constant_be64_to_cpu(x) I DON'T KNOW
  45. #define __constant_cpu_to_be32(x) ___constant_swahb32((x))
  46. #define __constant_be32_to_cpu(x) ___constant_swahb32((x))
  47. #define __constant_cpu_to_be16(x) ___constant_swab16((x))
  48. #define __constant_be16_to_cpu(x) ___constant_swab16((x))
  49. #define __cpu_to_le64(x) I DON'T KNOW
  50. #define __le64_to_cpu(x) I DON'T KNOW
  51. #define __cpu_to_le32(x) ___swahw32((x))
  52. #define __le32_to_cpu(x) ___swahw32((x))
  53. #define __cpu_to_le16(x) ((__u16)(x)
  54. #define __le16_to_cpu(x) ((__u16)(x)
  55. #define __cpu_to_be64(x) I DON'T KNOW
  56. #define __be64_to_cpu(x) I DON'T KNOW
  57. #define __cpu_to_be32(x) __swahb32((x))
  58. #define __be32_to_cpu(x) __swahb32((x))
  59. #define __cpu_to_be16(x) __swab16((x))
  60. #define __be16_to_cpu(x) __swab16((x))
  61. #define __cpu_to_le64p(x) I DON'T KNOW
  62. #define __le64_to_cpup(x) I DON'T KNOW
  63. #define __cpu_to_le32p(x) ___swahw32p((x))
  64. #define __le32_to_cpup(x) ___swahw32p((x))
  65. #define __cpu_to_le16p(x) (*(__u16*)(x))
  66. #define __le16_to_cpup(x) (*(__u16*)(x))
  67. #define __cpu_to_be64p(x) I DON'T KNOW
  68. #define __be64_to_cpup(x) I DON'T KNOW
  69. #define __cpu_to_be32p(x) __swahb32p((x))
  70. #define __be32_to_cpup(x) __swahb32p((x))
  71. #define __cpu_to_be16p(x) __swab16p((x))
  72. #define __be16_to_cpup(x) __swab16p((x))
  73. #define __cpu_to_le64s(x) I DON'T KNOW
  74. #define __le64_to_cpus(x) I DON'T KNOW
  75. #define __cpu_to_le32s(x) ___swahw32s((x))
  76. #define __le32_to_cpus(x) ___swahw32s((x))
  77. #define __cpu_to_le16s(x) do {} while (0)
  78. #define __le16_to_cpus(x) do {} while (0)
  79. #define __cpu_to_be64s(x) I DON'T KNOW
  80. #define __be64_to_cpus(x) I DON'T KNOW
  81. #define __cpu_to_be32s(x) __swahb32s((x))
  82. #define __be32_to_cpus(x) __swahb32s((x))
  83. #define __cpu_to_be16s(x) __swab16s((x))
  84. #define __be16_to_cpus(x) __swab16s((x))
  85.  
  86. #include <linux/byteorder/generic.h>
  87.  
  88. #endif /* _LINUX_BYTEORDER_PDP_ENDIAN_H */
  89.