LXR linux/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
  10static inline bool rpmsg_is_little_endian(void)
  11{
  12#ifdef __LITTLE_ENDIAN
  13        return true;
  14#else
  15        return false;
  16#endif
  17}
  18
  19static 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
  27static 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
  35static 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
  43static 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
  51static 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
  59static 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