diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/byteorder | |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/byteorder')
| -rw-r--r-- | include/linux/byteorder/big_endian.h | 106 | ||||
| -rw-r--r-- | include/linux/byteorder/generic.h | 172 | ||||
| -rw-r--r-- | include/linux/byteorder/little_endian.h | 106 | ||||
| -rw-r--r-- | include/linux/byteorder/pdp_endian.h | 88 | ||||
| -rw-r--r-- | include/linux/byteorder/swab.h | 192 | ||||
| -rw-r--r-- | include/linux/byteorder/swabb.h | 137 |
6 files changed, 801 insertions, 0 deletions
diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h new file mode 100644 index 000000000000..bef87891cb24 --- /dev/null +++ b/include/linux/byteorder/big_endian.h | |||
| @@ -0,0 +1,106 @@ | |||
| 1 | #ifndef _LINUX_BYTEORDER_BIG_ENDIAN_H | ||
| 2 | #define _LINUX_BYTEORDER_BIG_ENDIAN_H | ||
| 3 | |||
| 4 | #ifndef __BIG_ENDIAN | ||
| 5 | #define __BIG_ENDIAN 4321 | ||
| 6 | #endif | ||
| 7 | #ifndef __BIG_ENDIAN_BITFIELD | ||
| 8 | #define __BIG_ENDIAN_BITFIELD | ||
| 9 | #endif | ||
| 10 | |||
| 11 | #include <linux/types.h> | ||
| 12 | #include <linux/byteorder/swab.h> | ||
| 13 | |||
| 14 | #define __constant_htonl(x) ((__force __be32)(__u32)(x)) | ||
| 15 | #define __constant_ntohl(x) ((__force __u32)(__be32)(x)) | ||
| 16 | #define __constant_htons(x) ((__force __be16)(__u16)(x)) | ||
| 17 | #define __constant_ntohs(x) ((__force __u16)(__be16)(x)) | ||
| 18 | #define __constant_cpu_to_le64(x) ((__force __le64)___constant_swab64((x))) | ||
| 19 | #define __constant_le64_to_cpu(x) ___constant_swab64((__force __u64)(__le64)(x)) | ||
| 20 | #define __constant_cpu_to_le32(x) ((__force __le32)___constant_swab32((x))) | ||
| 21 | #define __constant_le32_to_cpu(x) ___constant_swab32((__force __u32)(__le32)(x)) | ||
| 22 | #define __constant_cpu_to_le16(x) ((__force __le16)___constant_swab16((x))) | ||
| 23 | #define __constant_le16_to_cpu(x) ___constant_swab16((__force __u16)(__le16)(x)) | ||
| 24 | #define __constant_cpu_to_be64(x) ((__force __be64)(__u64)(x)) | ||
| 25 | #define __constant_be64_to_cpu(x) ((__force __u64)(__be64)(x)) | ||
| 26 | #define __constant_cpu_to_be32(x) ((__force __be32)(__u32)(x)) | ||
| 27 | #define __constant_be32_to_cpu(x) ((__force __u32)(__be32)(x)) | ||
| 28 | #define __constant_cpu_to_be16(x) ((__force __be16)(__u16)(x)) | ||
| 29 | #define __constant_be16_to_cpu(x) ((__force __u16)(__be16)(x)) | ||
| 30 | #define __cpu_to_le64(x) ((__force __le64)__swab64((x))) | ||
| 31 | #define __le64_to_cpu(x) __swab64((__force __u64)(__le64)(x)) | ||
| 32 | #define __cpu_to_le32(x) ((__force __le32)__swab32((x))) | ||
| 33 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) | ||
| 34 | #define __cpu_to_le16(x) ((__force __le16)__swab16((x))) | ||
| 35 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) | ||
| 36 | #define __cpu_to_be64(x) ((__force __be64)(__u64)(x)) | ||
| 37 | #define __be64_to_cpu(x) ((__force __u64)(__be64)(x)) | ||
| 38 | #define __cpu_to_be32(x) ((__force __be32)(__u32)(x)) | ||
| 39 | #define __be32_to_cpu(x) ((__force __u32)(__be32)(x)) | ||
| 40 | #define __cpu_to_be16(x) ((__force __be16)(__u16)(x)) | ||
| 41 | #define __be16_to_cpu(x) ((__force __u16)(__be16)(x)) | ||
| 42 | |||
| 43 | static inline __le64 __cpu_to_le64p(const __u64 *p) | ||
| 44 | { | ||
| 45 | return (__force __le64)__swab64p(p); | ||
| 46 | } | ||
| 47 | static inline __u64 __le64_to_cpup(const __le64 *p) | ||
| 48 | { | ||
| 49 | return __swab64p((__u64 *)p); | ||
| 50 | } | ||
| 51 | static inline __le32 __cpu_to_le32p(const __u32 *p) | ||
| 52 | { | ||
| 53 | return (__force __le32)__swab32p(p); | ||
| 54 | } | ||
| 55 | static inline __u32 __le32_to_cpup(const __le32 *p) | ||
| 56 | { | ||
| 57 | return __swab32p((__u32 *)p); | ||
| 58 | } | ||
| 59 | static inline __le16 __cpu_to_le16p(const __u16 *p) | ||
| 60 | { | ||
| 61 | return (__force __le16)__swab16p(p); | ||
| 62 | } | ||
| 63 | static inline __u16 __le16_to_cpup(const __le16 *p) | ||
| 64 | { | ||
| 65 | return __swab16p((__u16 *)p); | ||
| 66 | } | ||
| 67 | static inline __be64 __cpu_to_be64p(const __u64 *p) | ||
| 68 | { | ||
| 69 | return (__force __be64)*p; | ||
| 70 | } | ||
| 71 | static inline __u64 __be64_to_cpup(const __be64 *p) | ||
| 72 | { | ||
| 73 | return (__force __u64)*p; | ||
| 74 | } | ||
| 75 | static inline __be32 __cpu_to_be32p(const __u32 *p) | ||
| 76 | { | ||
| 77 | return (__force __be32)*p; | ||
| 78 | } | ||
| 79 | static inline __u32 __be32_to_cpup(const __be32 *p) | ||
| 80 | { | ||
| 81 | return (__force __u32)*p; | ||
| 82 | } | ||
| 83 | static inline __be16 __cpu_to_be16p(const __u16 *p) | ||
| 84 | { | ||
| 85 | return (__force __be16)*p; | ||
| 86 | } | ||
| 87 | static inline __u16 __be16_to_cpup(const __be16 *p) | ||
| 88 | { | ||
| 89 | return (__force __u16)*p; | ||
| 90 | } | ||
| 91 | #define __cpu_to_le64s(x) __swab64s((x)) | ||
| 92 | #define __le64_to_cpus(x) __swab64s((x)) | ||
| 93 | #define __cpu_to_le32s(x) __swab32s((x)) | ||
| 94 | #define __le32_to_cpus(x) __swab32s((x)) | ||
| 95 | #define __cpu_to_le16s(x) __swab16s((x)) | ||
| 96 | #define __le16_to_cpus(x) __swab16s((x)) | ||
| 97 | #define __cpu_to_be64s(x) do {} while (0) | ||
| 98 | #define __be64_to_cpus(x) do {} while (0) | ||
| 99 | #define __cpu_to_be32s(x) do {} while (0) | ||
| 100 | #define __be32_to_cpus(x) do {} while (0) | ||
| 101 | #define __cpu_to_be16s(x) do {} while (0) | ||
| 102 | #define __be16_to_cpus(x) do {} while (0) | ||
| 103 | |||
| 104 | #include <linux/byteorder/generic.h> | ||
| 105 | |||
| 106 | #endif /* _LINUX_BYTEORDER_BIG_ENDIAN_H */ | ||
diff --git a/include/linux/byteorder/generic.h b/include/linux/byteorder/generic.h new file mode 100644 index 000000000000..5fde6f4d6c1e --- /dev/null +++ b/include/linux/byteorder/generic.h | |||
| @@ -0,0 +1,172 @@ | |||
| 1 | #ifndef _LINUX_BYTEORDER_GENERIC_H | ||
| 2 | #define _LINUX_BYTEORDER_GENERIC_H | ||
| 3 | |||
| 4 | /* | ||
| 5 | * linux/byteorder_generic.h | ||
| 6 | * Generic Byte-reordering support | ||
| 7 | * | ||
| 8 | * Francois-Rene Rideau <fare@tunes.org> 19970707 | ||
| 9 | * gathered all the good ideas from all asm-foo/byteorder.h into one file, | ||
| 10 | * cleaned them up. | ||
| 11 | * I hope it is compliant with non-GCC compilers. | ||
| 12 | * I decided to put __BYTEORDER_HAS_U64__ in byteorder.h, | ||
| 13 | * because I wasn't sure it would be ok to put it in types.h | ||
| 14 | * Upgraded it to 2.1.43 | ||
| 15 | * Francois-Rene Rideau <fare@tunes.org> 19971012 | ||
| 16 | * Upgraded it to 2.1.57 | ||
| 17 | * to please Linus T., replaced huge #ifdef's between little/big endian | ||
| 18 | * by nestedly #include'd files. | ||
| 19 | * Francois-Rene Rideau <fare@tunes.org> 19971205 | ||
| 20 | * Made it to 2.1.71; now a facelift: | ||
| 21 | * Put files under include/linux/byteorder/ | ||
| 22 | * Split swab from generic support. | ||
| 23 | * | ||
| 24 | * TODO: | ||
| 25 | * = Regular kernel maintainers could also replace all these manual | ||
| 26 | * byteswap macros that remain, disseminated among drivers, | ||
| 27 | * after some grep or the sources... | ||
| 28 | * = Linus might want to rename all these macros and files to fit his taste, | ||
| 29 | * to fit his personal naming scheme. | ||
| 30 | * = it seems that a few drivers would also appreciate | ||
| 31 | * nybble swapping support... | ||
| 32 | * = every architecture could add their byteswap macro in asm/byteorder.h | ||
| 33 | * see how some architectures already do (i386, alpha, ppc, etc) | ||
| 34 | * = cpu_to_beXX and beXX_to_cpu might some day need to be well | ||
| 35 | * distinguished throughout the kernel. This is not the case currently, | ||
| 36 | * since little endian, big endian, and pdp endian machines needn't it. | ||
| 37 | * But this might be the case for, say, a port of Linux to 20/21 bit | ||
| 38 | * architectures (and F21 Linux addict around?). | ||
| 39 | */ | ||
| 40 | |||
| 41 | /* | ||
| 42 | * The following macros are to be defined by <asm/byteorder.h>: | ||
| 43 | * | ||
| 44 | * Conversion of long and short int between network and host format | ||
| 45 | * ntohl(__u32 x) | ||
| 46 | * ntohs(__u16 x) | ||
| 47 | * htonl(__u32 x) | ||
| 48 | * htons(__u16 x) | ||
| 49 | * It seems that some programs (which? where? or perhaps a standard? POSIX?) | ||
| 50 | * might like the above to be functions, not macros (why?). | ||
| 51 | * if that's true, then detect them, and take measures. | ||
| 52 | * Anyway, the measure is: define only ___ntohl as a macro instead, | ||
| 53 | * and in a separate file, have | ||
| 54 | * unsigned long inline ntohl(x){return ___ntohl(x);} | ||
| 55 | * | ||
| 56 | * The same for constant arguments | ||
| 57 | * __constant_ntohl(__u32 x) | ||
| 58 | * __constant_ntohs(__u16 x) | ||
| 59 | * __constant_htonl(__u32 x) | ||
| 60 | * __constant_htons(__u16 x) | ||
| 61 | * | ||
| 62 | * Conversion of XX-bit integers (16- 32- or 64-) | ||
| 63 | * between native CPU format and little/big endian format | ||
| 64 | * 64-bit stuff only defined for proper architectures | ||
| 65 | * cpu_to_[bl]eXX(__uXX x) | ||
| 66 | * [bl]eXX_to_cpu(__uXX x) | ||
| 67 | * | ||
| 68 | * The same, but takes a pointer to the value to convert | ||
| 69 | * cpu_to_[bl]eXXp(__uXX x) | ||
| 70 | * [bl]eXX_to_cpup(__uXX x) | ||
| 71 | * | ||
| 72 | * The same, but change in situ | ||
| 73 | * cpu_to_[bl]eXXs(__uXX x) | ||
| 74 | * [bl]eXX_to_cpus(__uXX x) | ||
| 75 | * | ||
| 76 | * See asm-foo/byteorder.h for examples of how to provide | ||
| 77 | * architecture-optimized versions | ||
| 78 | * | ||
| 79 | */ | ||
| 80 | |||
| 81 | |||
| 82 | #if defined(__KERNEL__) | ||
| 83 | /* | ||
| 84 | * inside the kernel, we can use nicknames; | ||
| 85 | * outside of it, we must avoid POSIX namespace pollution... | ||
| 86 | */ | ||
