| 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 |