Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]
  1 #ifndef _LINUX_BYTEORDER_LITTLE_ENDIAN_H
  2 #define _LINUX_BYTEORDER_LITTLE_ENDIAN_H
  3 
  4 #ifndef __LITTLE_ENDIAN
  5 #define __LITTLE_ENDIAN 1234
  6 #endif
  7 #ifndef __LITTLE_ENDIAN_BITFIELD
  8 #define __LITTLE_ENDIAN_BITFIELD
  9 #endif
 10 
 11 #include <linux/types.h>
 12 #include <linux/swab.h>
 13 
 14 #define __constant_htonl(x) ((__force __be32)___constant_swab32((x)))
 15 #define __constant_ntohl(x) ___constant_swab32((__force __be32)(x))
 16 #define __constant_htons(x) ((__force __be16)___constant_swab16((x)))
 17 #define __constant_ntohs(x) ___constant_swab16((__force __be16)(x))
 18 #define __constant_cpu_to_le64(x) ((__force __le64)(__u64)(x))
 19 #define __constant_le64_to_cpu(x) ((__force __u64)(__le64)(x))
 20 #define __constant_cpu_to_le32(x) ((__force __le32)(__u32)(x))
 21 #define __constant_le32_to_cpu(x) ((__force __u32)(__le32)(x))
 22 #define __constant_cpu_to_le16(x) ((__force __le16)(__u16)(x))
 23 #define __constant_le16_to_cpu(x) ((__force __u16)(__le16)(x))
 24 #define __constant_cpu_to_be64(x) ((__force __be64)___constant_swab64((x)))
 25 #define __constant_be64_to_cpu(x) ___constant_swab64((__force __u64)(__be64)(x))
 26 #define __constant_cpu_to_be32(x) ((__force __be32)___constant_swab32((x)))
 27 #define __constant_be32_to_cpu(x) ___constant_swab32((__force __u32)(__be32)(x))
 28 #define __constant_cpu_to_be16(x) ((__force __be16)___constant_swab16((x)))
 29 #define __constant_be16_to_cpu(x) ___constant_swab16((__force __u16)(__be16)(x))
 30 #define __cpu_to_le64(x) ((__force __le64)(__u64)(x))
 31 #define __le64_to_cpu(x) ((__force __u64)(__le64)(x))
 32 #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
 33 #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
 34 #define __cpu_to_le16(x) ((__force __le16)(__u16)(x))
 35 #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
 36 #define __cpu_to_be64(x) ((__force __be64)__swab64((x)))
 37 #define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x))
 38 #define __cpu_to_be32(x) ((__force __be32)__swab32((x)))
 39 #define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
 40 #define __cpu_to_be16(x) ((__force __be16)__swab16((x)))
 41 #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x))
 42 
 43 static inline __le64 __cpu_to_le64p(const __u64 *p)
 44 {
 45         return (__force __le64)*p;
 46 }
 47 static inline __u64 __le64_to_cpup(const __le64 *p)
 48 {
 49         return (__force __u64)*p;
 50 }
 51 static inline __le32 __cpu_to_le32p(const __u32 *p)
 52 {
 53         return (__force __le32)*p;
 54 }
 55 static inline __u32 __le32_to_cpup(const __le32 *p)
 56 {
 57         return (__force __u32)*p;
 58 }
 59 static inline __le16 __cpu_to_le16p(const __u16 *p)
 60 {
 61         return (__force __le16)*p;
 62 }
 63 static inline __u16 __le16_to_cpup(const __le16 *p)
 64 {
 65         return (__force __u16)*p;
 66 }
 67 static inline __be64 __cpu_to_be64p(const __u64 *p)
 68 {
 69         return (__force __be64)__swab64p(p);
 70 }
 71 static inline __u64 __be64_to_cpup(const __be64 *p)
 72 {
 73         return __swab64p((__u64 *)p);
 74 }
 75 static inline __be32 __cpu_to_be32p(const __u32 *p)
 76 {
 77         return (__force __be32)__swab32p(p);
 78 }
 79 static inline __u32 __be32_to_cpup(const __be32 *p)
 80 {
 81         return __swab32p((__u32 *)p);
 82 }
 83 static inline __be16 __cpu_to_be16p(const __u16 *p)
 84 {
 85         return (__force __be16)__swab16p(p);
 86 }
 87 static inline __u16 __be16_to_cpup(const __be16 *p)
 88 {
 89         return __swab16p((__u16 *)p);
 90 }
 91 #define __cpu_to_le64s(x) do { (void)(x); } while (0)
 92 #define __le64_to_cpus(x) do { (void)(x); } while (0)
 93 #define __cpu_to_le32s(x) do { (void)(x); } while (0)
 94 #define __le32_to_cpus(x) do { (void)(x); } while (0)
 95 #define __cpu_to_le16s(x) do { (void)(x); } while (0)
 96 #define __le16_to_cpus(x) do { (void)(x); } while (0)
 97 #define __cpu_to_be64s(x) __swab64s((x))
 98 #define __be64_to_cpus(x) __swab64s((x))
 99 #define __cpu_to_be32s(x) __swab32s((x))
100 #define __be32_to_cpus(x) __swab32s((x))
101 #define __cpu_to_be16s(x) __swab16s((x))
102 #define __be16_to_cpus(x) __swab16s((x))
103 
104 #ifdef __KERNEL__
105 #include <linux/byteorder/generic.h>
106 #endif
107 
108 #endif /* _LINUX_BYTEORDER_LITTLE_ENDIAN_H */
109 
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