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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.h106
-rw-r--r--include/linux/byteorder/generic.h172
-rw-r--r--include/linux/byteorder/little_endian.h106
-rw-r--r--include/linux/byteorder/pdp_endian.h88
-rw-r--r--include/linux/byteorder/swab.h192
-rw-r--r--include/linux/byteorder/swabb.h137
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
43static inline __le64 __cpu_to_le64p(const __u64 *p)
44{
45 return (__force __le64)__swab64p(p);
46}
47static inline __u64 __le64_to_cpup(const __le64 *p)
48{
49 return __swab64p((__u64 *)p);
50}
51static inline __le32 __cpu_to_le32p(const __u32 *p)
52{
53 return (__force __le32)__swab32p(p);
54}
55static inline __u32 __le32_to_cpup(const __le32 *p)
56{
57 return __swab32p((__u32 *)p);
58}
59static inline __le16 __cpu_to_le16p(const __u16 *p)
60{
61 return (__force __le16)__swab16p(p);
62}
63static inline __u16 __le16_to_cpup(const __le16 *p)
64{
65 return __swab16p((__u16 *)p);
66}
67static inline __be64 __cpu_to_be64p(const __u64 *p)
68{
69 return (__force __be64)*p;
70}
71static inline __u64 __be64_to_cpup(const __be64 *p)
72{
73 return (__force __u64)*p;
74}
75static inline __be32 __cpu_to_be32p(const __u32 *p)
76{
77 return (__force __be32)*p;
78}
79static inline __u32 __be32_to_cpup(const __be32 *p)
80{
81 return (__force __u32)*p;
82}
83static inline __be16 __cpu_to_be16p(const __u16 *p)
84{
85 return (__force __be16)*p;
86}
87static 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 */