1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2020,2023 The FreeBSD Foundation
5 *
6 * This software was developed by Björn Zeeb under sponsorship from
7 * the FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #ifndef _LINUXKPI_ASM_UNALIGNED_H
32 #define _LINUXKPI_ASM_UNALIGNED_H
33
34 #include <linux/types.h>
35 #include <asm/byteorder.h>
36
37 static __inline uint16_t
get_unaligned_le16(const void * p)38 get_unaligned_le16(const void *p)
39 {
40
41 return (le16_to_cpup((const __le16 *)p));
42 }
43
44 static __inline uint32_t
get_unaligned_le32(const void * p)45 get_unaligned_le32(const void *p)
46 {
47
48 return (le32_to_cpup((const __le32 *)p));
49 }
50
51 static __inline void
put_unaligned_le16(__le16 v,void * p)52 put_unaligned_le16(__le16 v, void *p)
53 {
54 __le16 x;
55
56 x = cpu_to_le16(v);
57 memcpy(p, &x, sizeof(x));
58 }
59
60 static __inline void
put_unaligned_le32(__le32 v,void * p)61 put_unaligned_le32(__le32 v, void *p)
62 {
63 __le32 x;
64
65 x = cpu_to_le32(v);
66 memcpy(p, &x, sizeof(x));
67 }
68
69 static __inline void
put_unaligned_le64(__le64 v,void * p)70 put_unaligned_le64(__le64 v, void *p)
71 {
72 __le64 x;
73
74 x = cpu_to_le64(v);
75 memcpy(p, &x, sizeof(x));
76 }
77
78 static __inline uint16_t
get_unaligned_be16(const void * p)79 get_unaligned_be16(const void *p)
80 {
81
82 return (be16_to_cpup((const __be16 *)p));
83 }
84
85 static __inline uint32_t
get_unaligned_be32(const void * p)86 get_unaligned_be32(const void *p)
87 {
88
89 return (be32_to_cpup((const __be32 *)p));
90 }
91
92 static __inline uint64_t
get_unaligned_be64(const void * p)93 get_unaligned_be64(const void *p)
94 {
95
96 return (be64_to_cpup((const __be64 *)p));
97 }
98
99 #endif /* _LINUXKPI_ASM_UNALIGNED_H */
100