diff --git a/LUFA.pnproj b/LUFA.pnproj
index 96065e72fa..a06bd0b91d 100644
--- a/LUFA.pnproj
+++ b/LUFA.pnproj
@@ -1 +1 @@
-
\ No newline at end of file
+
\ No newline at end of file
diff --git a/LUFA/Common/Attributes.h b/LUFA/Common/Attributes.h
index 62ce9f29e4..53cfb6df1a 100644
--- a/LUFA/Common/Attributes.h
+++ b/LUFA/Common/Attributes.h
@@ -134,7 +134,9 @@
*/
#define ATTR_ALIAS(Func) __attribute__ ((alias( #Func )))
- /** Marks a variable or struct element for packing into the smallest space available. */
+ /** Marks a variable or struct element for packing into the smallest space available, omitting any
+ * alignment bytes usually added between fields to optimize field accesses.
+ */
#define ATTR_PACKED __attribute__ ((packed))
/** Indicates the minimum alignment in bytes for a variable or struct element.
diff --git a/LUFA/Common/Common.h b/LUFA/Common/Common.h
index da4b1ddc84..e24906d4d7 100644
--- a/LUFA/Common/Common.h
+++ b/LUFA/Common/Common.h
@@ -49,12 +49,6 @@
* Macros to aid debugging of a user application.
*/
-/** \defgroup Group_BitManip Endian and Bit Macros
- * \brief Convenience macros to aid in bit manipulations and endianness transforms.
- *
- * Functions for swapping endianness and reversing bit orders of data.
- */
-
#ifndef __LUFA_COMMON_H__
#define __LUFA_COMMON_H__
@@ -87,47 +81,13 @@
#include
typedef uint8_t uint_reg_t;
-
- #define le16_to_cpu(x) x
- #define le32_to_cpu(x) x
- #define be16_to_cpu(x) SwapEndian_16(x)
- #define be32_to_cpu(x) SwapEndian_32(x)
- #define cpu_to_le16(x) x
- #define cpu_to_le32(x) x
- #define cpu_to_be16(x) SwapEndian_16(x)
- #define cpu_to_be32(x) SwapEndian_32(x)
- #define LE16_TO_CPU(x) x
- #define LE32_TO_CPU(x) x
- #define BE16_TO_CPU(x) SWAPENDIAN_16(x)
- #define BE32_TO_CPU(x) SWAPENDIAN_32(x)
- #define CPU_TO_LE16(x) x
- #define CPU_TO_LE32(x) x
- #define CPU_TO_BE16(x) SWAPENDIAN_16(x)
- #define CPU_TO_BE32(x) SWAPENDIAN_32(x)
-
+
+ #define ARCH_LITTLE_ENDIAN
+ #include "Endianness.h"
#elif (ARCH == ARCH_UC3B)
#include
- typedef uint32_t uint_reg_t;
-
- // TODO
- #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 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 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 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
-
+ // === TODO: Find abstracted way to handle these ===
#define ISR(Name) void Name (void) __attribute__((__interrupt__)); void Name (void)
#define EEMEM
#define PROGMEM const
@@ -140,8 +100,15 @@
#define _delay_ms(x)
#define memcmp_P(...) memcmp(__VA_ARGS__)
#define memcpy_P(...) memcpy(__VA_ARGS__)
-
#define USE_RAM_DESCRIPTORS
+ // ==================================================
+
+ typedef uint32_t uint_reg_t;
+
+ #define ARCH_BIG_ENDIAN
+ #include "Endianness.h"
+ #else
+ #error Unknown device architecture specified.
#endif
/* Public Interface - May be used in end-application: */
@@ -251,35 +218,10 @@
*/
#define GCC_FORCE_POINTER_ACCESS(StructPtr) __asm__ __volatile__("" : "=b" (StructPtr) : "0" (StructPtr))
- /** Swaps the byte ordering of a 16-bit value at compile time. Do not use this macro for swapping byte orderings
- * of dynamic values computed at runtime, use \ref SwapEndian_16() instead. The result of this macro can be used
- * inside struct or other variable initializers outside of a function, something that is not possible with the
- * inline function variant.
- *
- * \param[in] x 16-bit value whose byte ordering is to be swapped.
- *
- * \return Input value with the byte ordering reversed.
- */
- #define SWAPENDIAN_16(x) ((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))
-
- /** Swaps the byte ordering of a 32-bit value at compile time. Do not use this macro for swapping byte orderings
- * of dynamic values computed at runtime- use \ref SwapEndian_32() instead. The result of this macro can be used
- * inside struct or other variable initializers outside of a function, something that is not possible with the
- * inline function variant.
- *
- * \param[in] x 32-bit value whose byte ordering is to be swapped.
- *
- * \return Input value with the byte ordering reversed.
- */
- #define SWAPENDIAN_32(x) ((((x) & 0xFF000000UL) >> 24UL) | (((x) & 0x00FF0000UL) >> 8UL) | \
- (((x) & 0x0000FF00UL) << 8UL) | (((x) & 0x000000FFUL) << 24UL))
-
/* Inline Functions: */
/** Function to reverse the individual bits in a byte - i.e. bit 7 is moved to bit 0, bit 6 to bit 1,
* etc.
*
- * \ingroup Group_BitManip
- *
* \param[in] Byte Byte of data whose bits are to be reversed.
*/
static inline uint8_t BitReverse(uint8_t Byte) ATTR_WARN_UNUSED_RESULT ATTR_CONST;
@@ -292,87 +234,6 @@
return Byte;
}
- /** Function to reverse the byte ordering of the individual bytes in a 16 bit number.
- *
- * \ingroup Group_BitManip
- *
- * \param[in] Word Word of data whose bytes are to be swapped.
- */
- 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)
- {
- uint8_t Temp;
-
- union
- {
- uint16_t Word;
- uint8_t Bytes[2];
- } Data;
-
- Data.Word = Word;
-
- Temp = Data.Bytes[0];
- Data.Bytes[0] = Data.Bytes[1];
- Data.Bytes[1] = Temp;
-
- return Data.Word;
- }
-
- /** Function to reverse the byte ordering of the individual bytes in a 32 bit number.
- *
- * \ingroup Group_BitManip
- *
- * \param[in] DWord Double word of data whose bytes are to be swapped.
- */
- 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)
- {
- uint8_t Temp;
-
- union
- {
- uint32_t DWord;
- uint8_t Bytes[4];
- } Data;
-
- Data.DWord = DWord;
-
- Temp = Data.Bytes[0];
- Data.Bytes[0] = Data.Bytes[3];
- Data.Bytes[3] = Temp;
-
- Temp = Data.Bytes[1];
- Data.Bytes[1] = Data.Bytes[2];
- Data.Bytes[2] = Temp;
-
- return Data.DWord;
- }
-
- /** Function to reverse the byte ordering of the individual bytes in a n byte number.
- *
- * \ingroup Group_BitManip
- *
- * \param[in,out] Data Pointer to a number containing an even number of bytes to be reversed.
- * \param[in] Bytes Length of the data in bytes.
- */
- static inline void SwapEndian_n(void* Data,
- uint8_t Bytes) ATTR_NON_NULL_PTR_ARG(1);
- static inline void SwapEndian_n(void* Data,
- uint8_t Bytes)
- {
- uint8_t* CurrDataPos = (uint8_t*)Data;
-
- while (Bytes > 1)
- {
- uint8_t Temp = *CurrDataPos;
- *CurrDataPos = *(CurrDataPos + Bytes - 1);
- *(CurrDataPos + Bytes - 1) = Temp;
-
- CurrDataPos++;
- Bytes -= 2;
- }
- }
-
#endif
/** @} */
diff --git a/LUFA/Common/Endianess.h b/LUFA/Common/Endianess.h
new file mode 100644
index 0000000000..d7f73ca69f
--- /dev/null
+++ b/LUFA/Common/Endianess.h
@@ -0,0 +1,462 @@
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2011.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2011 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
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim 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
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ * \brief Endianness and Byte Ordering macros and functions.
+ *
+ * \copydetails Group_Endianness
+ */
+
+/** \ingroup Group_Endianness
+ * \defgroup Group_ByteSwapping Byte Reordering
+ * \brief Macros and functions for forced byte reordering.
+ */
+
+/** \ingroup Group_Endianness
+ * \defgroup Group_EndianConversion Endianness Conversion
+ * \brief Macros and functions for automatic endianness conversion.
+ */
+
+/** \ingroup Group_Common
+ * \defgroup Group_Endianness Endianness and Byte Ordering
+ * \brief Convenience macros and functions relating to byte (re-)ordering
+ *
+ * Common library convenience macros and functions relating to byte (re-)ordering.
+ *
+ * @{
+ */
+
+#ifndef __LUFA_ENDIANNESS_H__
+#define __LUFA_ENDIANNESS_H__
+
+ /* Preprocessor Checks: */
+ #if !defined(__INCLUDE_FROM_COMMON_H)
+ #error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
+ #endif
+
+ /* Public Interface - May be used in end-application: */
+ /* Macros: */
+ /** Swaps the byte ordering of a 16-bit value at compile-time. Do not use this macro for swapping byte orderings
+ * of dynamic values computed at runtime, use \ref SwapEndian_16() instead. The result of this macro can be used
+ * inside struct or other variable initializers outside of a function, something that is not possible with the
+ * inline function variant.
+ *
+ * \ingroup Group_ByteSwapping
+ *
+ * \param[in] x 16-bit value whose byte ordering is to be swapped.
+ *
+ * \return Input value with the byte ordering reversed.
+ */
+ #define SWAPENDIAN_16(x) ((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))
+
+ /** Swaps the byte ordering of a 32-bit value at compile-time. Do not use this macro for swapping byte orderings
+ * of dynamic values computed at runtime- use \ref SwapEndian_32() instead. The result of this macro can be used
+ * inside struct or other variable initializers outside of a function, something that is not possible with the
+ * inline function variant.
+ *
+ * \ingroup Group_ByteSwapping
+ *
+ * \param[in] x 32-bit value whose byte ordering is to be swapped.
+ *
+ * \return Input value with the byte ordering reversed.
+ */
+ #define SWAPENDIAN_32(x) ((((x) & 0xFF000000UL) >> 24UL) | (((x) & 0x00FF0000UL) >> 8UL) | \
+ (((x) & 0x0000FF00UL) << 8UL) | (((x) & 0x000000FFUL) << 24UL))
+
+ #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 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 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 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
+ #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.
+ *
+ * On little endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for run-time conversion of data - for compile-time endianness
+ * conversion, use \ref LE16_TO_CPU instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #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.
+ *
+ * On little endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for run-time conversion of data - for compile-time endianness
+ * conversion, use \ref LE32_TO_CPU instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #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.
+ *
+ * On big endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for run-time conversion of data - for compile-time endianness
+ * conversion, use \ref BE16_TO_CPU instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #define be16_to_cpu(x) SwapEndian_16(x)
+
+ /** Performs a conversion between a Big Endian encoded 32-bit piece of data and the
+ * Endianness of the currently selected CPU architecture.
+ *
+ * On big endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for run-time conversion of data - for compile-time endianness
+ * conversion, use \ref BE32_TO_CPU instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #define be32_to_cpu(x) SwapEndian_32(x)
+
+ /** Performs a conversion on a natively encoded 16-bit piece of data to ensure that it
+ * is in Little Endian format regardless of the currently selected CPU architecture.
+ *
+ * On little endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for run-time conversion of data - for compile-time endianness
+ * conversion, use \ref CPU_TO_LE16 instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #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.
+ *
+ * On little endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for run-time conversion of data - for compile-time endianness
+ * conversion, use \ref CPU_TO_LE32 instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #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.
+ *
+ * On big endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for run-time conversion of data - for compile-time endianness
+ * conversion, use \ref CPU_TO_BE16 instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #define cpu_to_be16(x) SwapEndian_16(x)
+
+ /** Performs a conversion on a natively encoded 32-bit piece of data to ensure that it
+ * is in Big Endian format regardless of the currently selected CPU architecture.
+ *
+ * On big endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for run-time conversion of data - for compile-time endianness
+ * conversion, use \ref CPU_TO_BE32 instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #define cpu_to_be32(x) SwapEndian_32(x)
+
+ //@}
+
+ /** \name Compile-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.
+ *
+ * On little endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for compile-time conversion of data - for run time endianness
+ * conversion, use \ref le16_to_cpu instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #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.
+ *
+ * On little endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for compile-time conversion of data - for run time endianness
+ * conversion, use \ref le32_to_cpu instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #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.
+ *
+ * On big endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for compile-time conversion of data - for run-time endianness
+ * conversion, use \ref be16_to_cpu instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #define BE16_TO_CPU(x) SWAPENDIAN_16(x)
+
+ /** Performs a conversion between a Big Endian encoded 32-bit piece of data and the
+ * Endianness of the currently selected CPU architecture.
+ *
+ * On big endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for compile-time conversion of data - for run-time endianness
+ * conversion, use \ref be32_to_cpu instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #define BE32_TO_CPU(x) SWAPENDIAN_32(x)
+
+ /** Performs a conversion on a natively encoded 16-bit piece of data to ensure that it
+ * is in Little Endian format regardless of the currently selected CPU architecture.
+ *
+ * On little endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for compile-time conversion of data - for run-time endianness
+ * conversion, use \ref cpu_to_le16 instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #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.
+ *
+ * On little endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for compile-time conversion of data - for run-time endianness
+ * conversion, use \ref cpu_to_le32 instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #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.
+ *
+ * On big endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for compile-time conversion of data - for run-time endianness
+ * conversion, use \ref cpu_to_be16 instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #define CPU_TO_BE16(x) SWAPENDIAN_16(x)
+
+ /** Performs a conversion on a natively encoded 32-bit piece of data to ensure that it
+ * is in Big Endian format regardless of the currently selected CPU architecture.
+ *
+ * On big endian architectures, this macro does nothing.
+ *
+ * \note This macro is designed for compile-time conversion of data - for run-time endianness
+ * conversion, use \ref cpu_to_be32 instead.
+ *
+ * \ingroup Group_EndianConversion
+ *
+ * \param[in] x Data to perform the endianness conversion on.
+ *
+ * \return Endian corrected version of the input value.
+ */
+ #define CPU_TO_BE32(x) SWAPENDIAN_32(x)
+
+ //! @}
+ #endif
+
+ /* Inline Functions: */
+ /** Function to reverse the byte ordering of the individual bytes in a 16 bit value.
+ *
+ * \ingroup Group_ByteSwapping
+ *
+ * \param[in] Word Word of data whose bytes are to be swapped.
+ */
+ 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)
+ {
+ uint8_t Temp;
+
+ union
+ {
+ uint16_t Word;
+ uint8_t Bytes[2];
+ } Data;
+
+ Data.Word = Word;
+
+ Temp = Data.Bytes[0];
+ Data.Bytes[0] = Data.Bytes[1];
+ Data.Bytes[1] = Temp;
+
+ return Data.Word;
+ }
+
+ /** Function to reverse the byte ordering of the individual bytes in a 32 bit value.
+ *
+ * \ingroup Group_ByteSwapping
+ *
+ * \param[in] DWord Double word of data whose bytes are to be swapped.
+ */
+ 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)
+ {
+ uint8_t Temp;
+
+ union
+ {
+ uint32_t DWord;
+ uint8_t Bytes[4];
+ } Data;
+
+ Data.DWord = DWord;
+
+ Temp = Data.Bytes[0];
+ Data.Bytes[0] = Data.Bytes[3];
+ Data.Bytes[3] = Temp;
+
+ Temp = Data.Bytes[1];
+ Data.Bytes[1] = Data.Bytes[2];
+ Data.Bytes[2] = Temp;
+
+ return Data.DWord;
+ }
+
+ /** Function to reverse the byte ordering of the individual bytes in a n byte value.
+ *
+ * \ingroup Group_ByteSwapping
+ *
+ * \param[in,out] Data Pointer to a number containing an even number of bytes to be reversed.
+ * \param[in] Bytes Length of the data in bytes.
+ */
+ static inline void SwapEndian_n(void* Data,
+ uint8_t Bytes) ATTR_NON_NULL_PTR_ARG(1);
+ static inline void SwapEndian_n(void* Data,
+ uint8_t Bytes)
+ {
+ uint8_t* CurrDataPos = (uint8_t*)Data;
+
+ while (Bytes > 1)
+ {
+ uint8_t Temp = *CurrDataPos;
+ *CurrDataPos = *(CurrDataPos + Bytes - 1);
+ *(CurrDataPos + Bytes - 1) = Temp;
+
+ CurrDataPos++;
+ Bytes -= 2;
+ }
+ }
+
+#endif
+
+/** @} */
diff --git a/LUFA/Doxygen.conf b/LUFA/Doxygen.conf
index 624ff928ac..dadb864fe3 100644
--- a/LUFA/Doxygen.conf
+++ b/LUFA/Doxygen.conf
@@ -1426,7 +1426,8 @@ INCLUDE_FILE_PATTERNS =
PREDEFINED = __DOXYGEN__ \
PROGMEM \
- EEMEM
+ EEMEM \
+ ATTR_PACKED
# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
# this tag can be used to specify a list of macro names that should be expanded.