include/linux/rpmsg/byteorder.h

   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 */