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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup libc |
29 | /** @addtogroup libc |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef LIBC_BYTEORDER_H_ |
35 | #ifndef LIBC_BYTEORDER_H_ |
36 | #define LIBC_BYTEORDER_H_ |
36 | #define LIBC_BYTEORDER_H_ |
37 | 37 | ||
38 | #include <libarch/byteorder.h> |
- | |
39 | #include <stdint.h> |
38 | #include <stdint.h> |
40 | 39 | ||
41 | #if !(defined(ARCH_IS_BIG_ENDIAN) ^ defined(ARCH_IS_LITTLE_ENDIAN)) |
40 | #if !(defined(__BE__) ^ defined(__LE__)) |
42 | #error The architecture must be either big-endian or little-endian. |
41 | #error The architecture must be either big-endian or little-endian. |
43 | #endif |
42 | #endif |
44 | 43 | ||
45 | #ifdef ARCH_IS_BIG_ENDIAN |
44 | #ifdef __BE__ |
46 | 45 | ||
47 | #define uint16_t_le2host(n) uint16_t_byteorder_swap(n) |
46 | #define uint16_t_le2host(n) (uint16_t_byteorder_swap(n)) |
48 | #define uint32_t_le2host(n) uint32_t_byteorder_swap(n) |
47 | #define uint32_t_le2host(n) (uint32_t_byteorder_swap(n)) |
49 | #define uint64_t_le2host(n) uint64_t_byteorder_swap(n) |
48 | #define uint64_t_le2host(n) (uint64_t_byteorder_swap(n)) |
50 | 49 | ||
51 | #define uint16_t_be2host(n) (n) |
50 | #define uint16_t_be2host(n) (n) |
52 | #define uint32_t_be2host(n) (n) |
51 | #define uint32_t_be2host(n) (n) |
53 | #define uint64_t_be2host(n) (n) |
52 | #define uint64_t_be2host(n) (n) |
54 | 53 | ||
55 | #define host2uint16_t_le(n) uint16_t_byteorder_swap(n) |
54 | #define host2uint16_t_le(n) (uint16_t_byteorder_swap(n)) |
56 | #define host2uint32_t_le(n) uint32_t_byteorder_swap(n) |
55 | #define host2uint32_t_le(n) (uint32_t_byteorder_swap(n)) |
57 | #define host2uint64_t_le(n) uint64_t_byteorder_swap(n) |
56 | #define host2uint64_t_le(n) (uint64_t_byteorder_swap(n)) |
58 | 57 | ||
59 | #define host2uint16_t_be(n) (n) |
58 | #define host2uint16_t_be(n) (n) |
60 | #define host2uint32_t_be(n) (n) |
59 | #define host2uint32_t_be(n) (n) |
61 | #define host2uint64_t_be(n) (n) |
60 | #define host2uint64_t_be(n) (n) |
62 | 61 | ||
63 | #else |
62 | #else |
64 | 63 | ||
65 | #define uint16_t_le2host(n) (n) |
64 | #define uint16_t_le2host(n) (n) |
66 | #define uint32_t_le2host(n) (n) |
65 | #define uint32_t_le2host(n) (n) |
67 | #define uint64_t_le2host(n) (n) |
66 | #define uint64_t_le2host(n) (n) |
68 | 67 | ||
69 | #define uint16_t_be2host(n) uint16_t_byteorder_swap(n) |
68 | #define uint16_t_be2host(n) (uint16_t_byteorder_swap(n)) |
70 | #define uint32_t_be2host(n) uint32_t_byteorder_swap(n) |
69 | #define uint32_t_be2host(n) (uint32_t_byteorder_swap(n)) |
71 | #define uint64_t_be2host(n) uint64_t_byteorder_swap(n) |
70 | #define uint64_t_be2host(n) (uint64_t_byteorder_swap(n)) |
72 | 71 | ||
73 | #define host2uint16_t_le(n) (n) |
72 | #define host2uint16_t_le(n) (n) |
74 | #define host2uint32_t_le(n) (n) |
73 | #define host2uint32_t_le(n) (n) |
75 | #define host2uint64_t_le(n) (n) |
74 | #define host2uint64_t_le(n) (n) |
76 | 75 | ||
77 | #define host2uint16_t_be(n) uint16_t_byteorder_swap(n) |
76 | #define host2uint16_t_be(n) (uint16_t_byteorder_swap(n)) |
78 | #define host2uint32_t_be(n) uint32_t_byteorder_swap(n) |
77 | #define host2uint32_t_be(n) (uint32_t_byteorder_swap(n)) |
79 | #define host2uint64_t_be(n) uint64_t_byteorder_swap(n) |
78 | #define host2uint64_t_be(n) (uint64_t_byteorder_swap(n)) |
80 | 79 | ||
81 | #endif |
80 | #endif |
82 | 81 | ||
83 | static inline uint64_t uint64_t_byteorder_swap(uint64_t n) |
82 | static inline uint64_t uint64_t_byteorder_swap(uint64_t n) |
84 | { |
83 | { |
85 | return ((n & 0xff) << 56) | |
84 | return ((n & 0xff) << 56) | |
86 | ((n & 0xff00) << 40) | |
85 | ((n & 0xff00) << 40) | |
87 | ((n & 0xff0000) << 24) | |
86 | ((n & 0xff0000) << 24) | |
88 | ((n & 0xff000000LL) << 8) | |
87 | ((n & 0xff000000LL) << 8) | |
89 | ((n & 0xff00000000LL) >> 8) | |
88 | ((n & 0xff00000000LL) >> 8) | |
90 | ((n & 0xff0000000000LL) >> 24) | |
89 | ((n & 0xff0000000000LL) >> 24) | |
91 | ((n & 0xff000000000000LL) >> 40) | |
90 | ((n & 0xff000000000000LL) >> 40) | |
92 | ((n & 0xff00000000000000LL) >> 56); |
91 | ((n & 0xff00000000000000LL) >> 56); |
93 | } |
92 | } |
94 | 93 | ||
95 | static inline uint32_t uint32_t_byteorder_swap(uint32_t n) |
94 | static inline uint32_t uint32_t_byteorder_swap(uint32_t n) |
96 | { |
95 | { |
97 | return ((n & 0xff) << 24) | |
96 | return ((n & 0xff) << 24) | |
98 | ((n & 0xff00) << 8) | |
97 | ((n & 0xff00) << 8) | |
99 | ((n & 0xff0000) >> 8) | |
98 | ((n & 0xff0000) >> 8) | |
100 | ((n & 0xff000000) >> 24); |
99 | ((n & 0xff000000) >> 24); |
101 | } |
100 | } |
102 | 101 | ||
103 | static inline uint16_t uint16_t_byteorder_swap(uint16_t n) |
102 | static inline uint16_t uint16_t_byteorder_swap(uint16_t n) |
104 | { |
103 | { |
105 | return ((n & 0xff) << 8) | |
104 | return ((n & 0xff) << 8) | |
106 | ((n & 0xff00) >> 8); |
105 | ((n & 0xff00) >> 8); |
107 | } |
106 | } |
108 | 107 | ||
109 | #endif |
108 | #endif |
110 | 109 | ||
111 | /** @} |
110 | /** @} |
112 | */ |
111 | */ |
113 | 112 |