+/*!
+ * \brief Swap upper and lower bytes in a 16-bit value.
+ */
+INLINE uint16_t swab16(uint16_t x)
+{
+ return ((x & (uint16_t)0x00FFU) << 8)
+ | ((x & (uint16_t)0xFF00U) >> 8);
+}
+
+/*!
+ * \brief Reverse bytes in a 32-bit value (e.g.: 0x12345678 -> 0x78563412).
+ */
+INLINE uint16_t swab32(uint16_t x)
+{
+ return ((x & (uint32_t)0x000000FFUL) << 24)
+ | ((x & (uint32_t)0x0000FF00UL) << 8)
+ | ((x & (uint32_t)0x00FF0000UL) >> 8)
+ | ((x & (uint32_t)0xFF000000UL) >> 24);
+}
+
+INLINE uint16_t cpu_to_be16(uint16_t x)