-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2010.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, distribute, and sell this \r
- software and its documentation for any purpose is hereby granted\r
- without fee, provided that the above copyright notice appear in \r
- all copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting \r
- documentation, and that the name of the author not be used in \r
- advertising or publicity pertaining to distribution of the \r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- * \brief Common library convenience macros and functions.\r
- *\r
- * This file contains macros which are common to all library elements, and which may be useful in user code. It\r
- * also includes other common headers, such as Atomic.h, Attributes.h and BoardTypes.h.\r
- */\r
- \r
-/** @defgroup Group_Common Common Utility Headers - LUFA/Drivers/Common/Common.h\r
- *\r
- * Common utility headers containing macros, functions, enums and types which are common to all\r
- * aspects of the library.\r
- *\r
- * @{\r
- */\r
-\r
-/** @defgroup Group_Debugging Debugging Macros\r
- *\r
- * Macros for debugging use.\r
- */\r
- \r
-/** @defgroup Group_BitManip Endian and Bit Macros\r
- *\r
- * Functions for swapping endianness and reversing bit orders.\r
- */\r
-\r
-#ifndef __COMMON_H__\r
-#define __COMMON_H__\r
-\r
- /* Includes: */\r
- #include <avr/io.h>\r
- \r
- #include "Attributes.h"\r
- #include "BoardTypes.h"\r
-\r
- /* Public Interface - May be used in end-application: */\r
- /* Macros: */ \r
- /** Macro for encasing other multi-statement macros. This should be used along with an opening brace\r
- * before the start of any multi-statement macro, so that the macros contents as a whole are treated\r
- * as a discrete block and not as a list of separate statements which may cause problems when used as\r
- * a block (such as inline IF statements).\r
- */\r
- #define MACROS do\r
-\r
- /** Macro for encasing other multi-statement macros. This should be used along with a preceding closing\r
- * brace at the end of any multi-statement macro, so that the macros contents as a whole are treated\r
- * as a discrete block and not as a list of separate statements which may cause problems when used as\r
- * a block (such as inline IF statements).\r
- */\r
- #define MACROE while (0)\r
- \r
- /** Defines a volatile NOP statement which cannot be optimized out by the compiler, and thus can always\r
- * be set as a breakpoint in the resulting code. Useful for debugging purposes, where the optimizer\r
- * removes/reorders code to the point where break points cannot reliably be set.\r
- *\r
- * \ingroup Group_Debugging\r
- */\r
- #define JTAG_DEBUG_POINT() asm volatile ("NOP" ::)\r
-\r
- /** Defines an explicit JTAG break point in the resulting binary via the ASM BREAK statement. When\r
- * a JTAG is used, this causes the program execution to halt when reached until manually resumed.\r
- *\r
- * \ingroup Group_Debugging\r
- */\r
- #define JTAG_DEBUG_BREAK() asm volatile ("BREAK" ::)\r
- \r
- /** Macro for testing condition "x" and breaking via JTAG_DEBUG_BREAK() if the condition is false.\r
- *\r
- * \ingroup Group_Debugging\r
- */\r
- #define JTAG_DEBUG_ASSERT(x) MACROS{ if (!(x)) { JTAG_DEBUG_BREAK(); } }MACROE\r
-\r
- /** Macro for testing condition "x" and writing debug data to the serial stream if false. As a\r
- * prerequisite for this macro, the serial stream should be configured via the Peripheral/SerialStream driver.\r
- *\r
- * The serial output takes the form "{FILENAME}: Function {FUNCTION NAME}, Line {LINE NUMBER}: Assertion\r
- * {x} failed."\r
- *\r
- * \ingroup Group_Debugging\r
- */\r
- #define SERIAL_STREAM_ASSERT(x) MACROS{ if (!(x)) { printf_P(PSTR("%s: Function \"%s\", Line %d: " \\r
- "Assertion \"%s\" failed.\r\n"), \\r
- __FILE__, __func__, __LINE__, #x); \\r
- } }MACROE\r
-\r
- /* Inline Functions: */\r
- /** Function to reverse the individual bits in a byte - i.e. bit 7 is moved to bit 0, bit 6 to bit 1,\r
- * etc.\r
- *\r
- * \ingroup Group_BitManip\r
- *\r
- * \param[in] Byte Byte of data whose bits are to be reversed\r
- */\r
- static inline uint8_t BitReverse(uint8_t Byte) ATTR_WARN_UNUSED_RESULT ATTR_CONST;\r
- static inline uint8_t BitReverse(uint8_t Byte)\r
- {\r
- Byte = (((Byte & 0xF0) >> 4) | ((Byte & 0x0F) << 4));\r
- Byte = (((Byte & 0xCC) >> 2) | ((Byte & 0x33) << 2));\r
- Byte = (((Byte & 0xAA) >> 1) | ((Byte & 0x55) << 1));\r
-\r
- return Byte;\r
- }\r
- \r
- /** Function to reverse the byte ordering of the individual bytes in a 16 bit number.\r
- *\r
- * \ingroup Group_BitManip\r
- *\r
- * \param[in] Word Word of data whose bytes are to be swapped\r
- */\r
- static inline uint16_t SwapEndian_16(uint16_t Word) ATTR_WARN_UNUSED_RESULT ATTR_CONST;\r
- static inline uint16_t SwapEndian_16(uint16_t Word)\r
- {\r
- return ((Word >> 8) | (Word << 8)); \r
- }\r
-\r
- /** Function to reverse the byte ordering of the individual bytes in a 32 bit number.\r
- *\r
- * \ingroup Group_BitManip\r
- *\r
- * \param[in] DWord Double word of data whose bytes are to be swapped\r
- */\r
- static inline uint32_t SwapEndian_32(uint32_t DWord) ATTR_WARN_UNUSED_RESULT ATTR_CONST;\r
- static inline uint32_t SwapEndian_32(uint32_t DWord)\r
- {\r
- return (((DWord & 0xFF000000) >> 24) |\r
- ((DWord & 0x00FF0000) >> 8) |\r
- ((DWord & 0x0000FF00) << 8) |\r
- ((DWord & 0x000000FF) << 24));\r
- }\r
-\r
- /** Function to reverse the byte ordering of the individual bytes in a n byte number.\r
- *\r
- * \ingroup Group_BitManip\r
- *\r
- * \param[in,out] Data Pointer to a number containing an even number of bytes to be reversed\r
- * \param[in] Bytes Length of the data in bytes\r
- */\r
- static inline void SwapEndian_n(void* Data, uint8_t Bytes);\r
- static inline void SwapEndian_n(void* Data, uint8_t Bytes)\r
- {\r
- uint8_t* CurrDataPos = Data;\r
- \r
- while (Bytes)\r
- {\r
- uint8_t Temp = *CurrDataPos;\r
- *CurrDataPos = *(CurrDataPos + Bytes - 1);\r
- *(CurrDataPos + Bytes - 1) = Temp;\r
-\r
- CurrDataPos++;\r
- Bytes -= 2;\r
- }\r
- }\r
-\r
-#endif\r
-\r
-/** @} */\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2010 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 Common library convenience macros and functions.
+ *
+ * This file contains macros which are common to all library elements, and which may be useful in user code. It
+ * also includes other common headers, such as Atomic.h, Attributes.h and BoardTypes.h.
+ */
+
+/** @defgroup Group_Common Common Utility Headers - LUFA/Drivers/Common/Common.h
+ *
+ * Common utility headers containing macros, functions, enums and types which are common to all
+ * aspects of the library.
+ *
+ * @{
+ */
+
+/** @defgroup Group_Debugging Debugging Macros
+ *
+ * Macros for debugging use.
+ */
+
+/** @defgroup Group_BitManip Endian and Bit Macros
+ *
+ * Functions for swapping endianness and reversing bit orders.
+ */
+
+#ifndef __COMMON_H__
+#define __COMMON_H__
+
+ /* Includes: */
+ #include <avr/io.h>
+
+ #include "Attributes.h"
+ #include "BoardTypes.h"
+
+ /* Public Interface - May be used in end-application: */
+ /* Macros: */
+ /** Macro for encasing other multi-statement macros. This should be used along with an opening brace
+ * before the start of any multi-statement macro, so that the macros contents as a whole are treated
+ * as a discrete block and not as a list of separate statements which may cause problems when used as
+ * a block (such as inline IF statements).
+ */
+ #define MACROS do
+
+ /** Macro for encasing other multi-statement macros. This should be used along with a preceding closing
+ * brace at the end of any multi-statement macro, so that the macros contents as a whole are treated
+ * as a discrete block and not as a list of separate statements which may cause problems when used as
+ * a block (such as inline IF statements).
+ */
+ #define MACROE while (0)
+
+ /** Defines a volatile NOP statement which cannot be optimized out by the compiler, and thus can always
+ * be set as a breakpoint in the resulting code. Useful for debugging purposes, where the optimizer
+ * removes/reorders code to the point where break points cannot reliably be set.
+ *
+ * \ingroup Group_Debugging
+ */
+ #define JTAG_DEBUG_POINT() asm volatile ("NOP" ::)
+
+ /** Defines an explicit JTAG break point in the resulting binary via the ASM BREAK statement. When
+ * a JTAG is used, this causes the program execution to halt when reached until manually resumed.
+ *
+ * \ingroup Group_Debugging
+ */
+ #define JTAG_DEBUG_BREAK() asm volatile ("BREAK" ::)
+
+ /** Macro for testing condition "x" and breaking via JTAG_DEBUG_BREAK() if the condition is false.
+ *
+ * \ingroup Group_Debugging
+ */
+ #define JTAG_DEBUG_ASSERT(x) MACROS{ if (!(x)) { JTAG_DEBUG_BREAK(); } }MACROE
+
+ /** Macro for testing condition "x" and writing debug data to the serial stream if false. As a
+ * prerequisite for this macro, the serial stream should be configured via the Peripheral/SerialStream driver.
+ *
+ * The serial output takes the form "{FILENAME}: Function {FUNCTION NAME}, Line {LINE NUMBER}: Assertion
+ * {x} failed."
+ *
+ * \ingroup Group_Debugging
+ */
+ #define SERIAL_STREAM_ASSERT(x) MACROS{ if (!(x)) { printf_P(PSTR("%s: Function \"%s\", Line %d: " \
+ "Assertion \"%s\" failed.\r\n"), \
+ __FILE__, __func__, __LINE__, #x); \
+ } }MACROE
+
+ /* 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;
+ static inline uint8_t BitReverse(uint8_t Byte)
+ {
+ Byte = (((Byte & 0xF0) >> 4) | ((Byte & 0x0F) << 4));
+ Byte = (((Byte & 0xCC) >> 2) | ((Byte & 0x33) << 2));
+ Byte = (((Byte & 0xAA) >> 1) | ((Byte & 0x55) << 1));
+
+ 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(uint16_t Word) ATTR_WARN_UNUSED_RESULT ATTR_CONST;
+ static inline uint16_t SwapEndian_16(uint16_t Word)
+ {
+ return ((Word >> 8) | (Word << 8));
+ }
+
+ /** 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(uint32_t DWord) ATTR_WARN_UNUSED_RESULT ATTR_CONST;
+ static inline uint32_t SwapEndian_32(uint32_t DWord)
+ {
+ return (((DWord & 0xFF000000) >> 24) |
+ ((DWord & 0x00FF0000) >> 8) |
+ ((DWord & 0x0000FF00) << 8) |
+ ((DWord & 0x000000FF) << 24));
+ }
+
+ /** 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);
+ static inline void SwapEndian_n(void* Data, uint8_t Bytes)
+ {
+ uint8_t* CurrDataPos = Data;
+
+ while (Bytes)
+ {
+ uint8_t Temp = *CurrDataPos;
+ *CurrDataPos = *(CurrDataPos + Bytes - 1);
+ *(CurrDataPos + Bytes - 1) = Temp;
+
+ CurrDataPos++;
+ Bytes -= 2;
+ }
+ }
+
+#endif
+
+/** @} */
projects / pub / USBasp.git / blobdiff