1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Follows implementation found in linux/virtio_byteorder.h
4 */
5 #ifndef _LINUX_RPMSG_BYTEORDER_H
6 #define _LINUX_RPMSG_BYTEORDER_H
7 #include <linux/types.h>
8 #include <uapi/linux/rpmsg_types.h>
9
10 static inline bool rpmsg_is_little_endian(void)
11 {
12 #ifdef __LITTLE_ENDIAN
13 return true;
14 #else
15 return false;
16 #endif
17 }
18
19 static inline u16 __rpmsg16_to_cpu(bool little_endian, __rpmsg16 val)
20 {
21 if (little_endian)
22 return le16_to_cpu((__force __le16)val);
23 else
24 return be16_to_cpu((__force __be16)val);
25 }
26
27 static inline __rpmsg16 __cpu_to_rpmsg16(bool little_endian, u16 val)
28 {
29 if (little_endian)
30 return (__force __rpmsg16)cpu_to_le16(val);
31 else
32 return (__force __rpmsg16)cpu_to_be16(val);
33 }
34
35 static inline u32 __rpmsg32_to_cpu(bool little_endian, __rpmsg32 val)
36 {
37 if (little_endian)
38 return le32_to_cpu((__force __le32)val);
39 else
40 return be32_to_cpu((__force __be32)val);
41 }
42
43 static inline __rpmsg32 __cpu_to_rpmsg32(bool little_endian, u32 val)
44 {
45 if (little_endian)
46 return (__force __rpmsg32)cpu_to_le32(val);
47 else
48 return (__force __rpmsg32)cpu_to_be32(val);
49 }
50
51 static inline u64 __rpmsg64_to_cpu(bool little_endian, __rpmsg64 val)
52 {
53 if (little_endian)
54 return le64_to_cpu((__force __le64)val);
55 else
56 return be64_to_cpu((__force __be64)val);
57 }
58
59 static inline __rpmsg64 __cpu_to_rpmsg64(bool little_endian, u64 val)
60 {
61 if (little_endian)
62 return (__force __rpmsg64)cpu_to_le64(val);
63 else
64 return (__force __rpmsg64)cpu_to_be64(val);
65 }
66
67 #endif /* _LINUX_RPMSG_BYTEORDER_H */
68
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