/*
LUFA Library
- Copyright (C) Dean Camera, 2011.
+ Copyright (C) Dean Camera, 2013.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
- Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2013 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
- The author disclaim all warranties with regard to this
+ The author disclaims all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
#if !defined(__INCLUDE_FROM_COMMON_H)
#error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
#endif
-
+
#if !(defined(ARCH_BIG_ENDIAN) || defined(ARCH_LITTLE_ENDIAN))
#error ARCH_BIG_ENDIAN or ARCH_LITTLE_ENDIAN not set for the specified architecture.
#endif
* inside struct or other variable initializers outside of a function, something that is not possible with the
* inline function variant.
*
+ * \hideinitializer
+ *
* \ingroup Group_ByteSwapping
*
* \param[in] x 16-bit value whose byte ordering is to be swapped.
* inside struct or other variable initializers outside of a function, something that is not possible with the
* inline function variant.
*
+ * \hideinitializer
+ *
* \ingroup Group_ByteSwapping
*
* \param[in] x 32-bit value whose byte ordering is to be swapped.
#if defined(ARCH_BIG_ENDIAN) && !defined(le16_to_cpu)
#define le16_to_cpu(x) SwapEndian_16(x)
#define le32_to_cpu(x) SwapEndian_32(x)
- #define be16_to_cpu(x) x
- #define be32_to_cpu(x) x
+ #define be16_to_cpu(x) (x)
+ #define be32_to_cpu(x) (x)
#define cpu_to_le16(x) SwapEndian_16(x)
#define cpu_to_le32(x) SwapEndian_32(x)
- #define cpu_to_be16(x) x
- #define cpu_to_be32(x) x
+ #define cpu_to_be16(x) (x)
+ #define cpu_to_be32(x) (x)
#define LE16_TO_CPU(x) SWAPENDIAN_16(x)
#define LE32_TO_CPU(x) SWAPENDIAN_32(x)
- #define BE16_TO_CPU(x) x
- #define BE32_TO_CPU(x) x
+ #define BE16_TO_CPU(x) (x)
+ #define BE32_TO_CPU(x) (x)
#define CPU_TO_LE16(x) SWAPENDIAN_16(x)
#define CPU_TO_LE32(x) SWAPENDIAN_32(x)
- #define CPU_TO_BE16(x) x
- #define CPU_TO_BE32(x) x
+ #define CPU_TO_BE16(x) (x)
+ #define CPU_TO_BE32(x) (x)
#elif !defined(le16_to_cpu)
/** \name Run-time endianness conversion */
//@{
-
+
/** Performs a conversion between a Little Endian encoded 16-bit piece of data and the
* Endianness of the currently selected CPU architecture.
*
*
* \return Endian corrected version of the input value.
*/
- #define le16_to_cpu(x) x
+ #define le16_to_cpu(x) (x)
/** Performs a conversion between a Little Endian encoded 32-bit piece of data and the
* Endianness of the currently selected CPU architecture.
*
* \return Endian corrected version of the input value.
*/
- #define le32_to_cpu(x) x
+ #define le32_to_cpu(x) (x)
/** Performs a conversion between a Big Endian encoded 16-bit piece of data and the
* Endianness of the currently selected CPU architecture.
*
* \return Endian corrected version of the input value.
*/
- #define cpu_to_le16(x) x
+ #define cpu_to_le16(x) (x)
/** Performs a conversion on a natively encoded 32-bit piece of data to ensure that it
* is in Little Endian format regardless of the currently selected CPU architecture.
*
* \return Endian corrected version of the input value.
*/
- #define cpu_to_le32(x) x
+ #define cpu_to_le32(x) (x)
/** Performs a conversion on a natively encoded 16-bit piece of data to ensure that it
* is in Big Endian format regardless of the currently selected CPU architecture.
*
* \return Endian corrected version of the input value.
*/
- #define LE16_TO_CPU(x) x
+ #define LE16_TO_CPU(x) (x)
/** Performs a conversion between a Little Endian encoded 32-bit piece of data and the
* Endianness of the currently selected CPU architecture.
*
* \return Endian corrected version of the input value.
*/
- #define LE32_TO_CPU(x) x
+ #define LE32_TO_CPU(x) (x)
/** Performs a conversion between a Big Endian encoded 16-bit piece of data and the
* Endianness of the currently selected CPU architecture.
*
* \return Endian corrected version of the input value.
*/
- #define CPU_TO_LE16(x) x
+ #define CPU_TO_LE16(x) (x)
/** Performs a conversion on a natively encoded 32-bit piece of data to ensure that it
* is in Little Endian format regardless of the currently selected CPU architecture.
*
* \return Endian corrected version of the input value.
*/
- #define CPU_TO_LE32(x) x
+ #define CPU_TO_LE32(x) (x)
/** Performs a conversion on a natively encoded 16-bit piece of data to ensure that it
* is in Big Endian format regardless of the currently selected CPU architecture.
* \ingroup Group_ByteSwapping
*
* \param[in] Word Word of data whose bytes are to be swapped.
+ *
+ * \return Input data with the individual bytes reversed.
*/
static inline uint16_t SwapEndian_16(const uint16_t Word) ATTR_WARN_UNUSED_RESULT ATTR_CONST;
static inline uint16_t SwapEndian_16(const uint16_t Word)
{
if (GCC_IS_COMPILE_CONST(Word))
return SWAPENDIAN_16(Word);
-
+
uint8_t Temp;
union
* \ingroup Group_ByteSwapping
*
* \param[in] DWord Double word of data whose bytes are to be swapped.
+ *
+ * \return Input data with the individual bytes reversed.
*/
static inline uint32_t SwapEndian_32(const uint32_t DWord) ATTR_WARN_UNUSED_RESULT ATTR_CONST;
static inline uint32_t SwapEndian_32(const uint32_t DWord)
*
* \param[in,out] Data Pointer to a number containing an even number of bytes to be reversed.
* \param[in] Length Length of the data in bytes.
+ *
+ * \return Input data with the individual bytes reversed.
*/
static inline void SwapEndian_n(void* const Data,
uint8_t Length) ATTR_NON_NULL_PTR_ARG(1);
#endif
/** @} */
+
projects / pub / USBasp.git / blobdiff