Add missing SVN eol-style property to ensure that source code line endings and conver...
[pub/USBasp.git] / LUFA / Common / ArchitectureSpecific.h
index 502723f..1a125d6 100644 (file)
-/*\r
-             LUFA Library\r
-     Copyright (C) Dean Camera, 2011.\r
-\r
-  dean [at] fourwalledcubicle [dot] com\r
-           www.lufa-lib.org\r
-*/\r
-\r
-/*\r
-  Copyright 2011  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 Architecture specific definitions relating to specific processor architectures.\r
- *\r
- *  \copydetails Group_ArchitectureSpecific\r
- *\r
- *  \note Do not include this file directly, rather include the Common.h header file instead to gain this file's\r
- *        functionality.\r
- */\r
-\r
-/** \ingroup Group_Common\r
- *  \defgroup Group_ArchitectureSpecific Architecture Specific Definitions\r
- *  \brief Architecture specific definitions relating to specific processor architectures.\r
- *\r
- *  Architecture specific macros, functions and other definitions, which relate to specific architectures. This\r
- *  definitions may or may not be available in some form on other architectures, and thus should be protected by\r
- *  preprocessor checks in portable code to prevent compile errors.\r
- *\r
- *  @{\r
- */\r
-\r
-#ifndef __LUFA_ARCHSPEC_H__\r
-#define __LUFA_ARCHSPEC_H__\r
-\r
-       /* Preprocessor Checks: */\r
-               #if !defined(__INCLUDE_FROM_COMMON_H)\r
-                       #error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.\r
-               #endif\r
-               \r
-       /* Enable C linkage for C++ Compilers: */\r
-               #if defined(__cplusplus)\r
-                       extern "C" {\r
-               #endif\r
-\r
-       /* Public Interface - May be used in end-application: */\r
-               /* Macros: */\r
-                       #if (ARCH == ARCH_AVR8) || defined(__DOXYGEN__)\r
-                               /** Disables the AVR's JTAG bus in software, until a system reset. This will override the current JTAG\r
-                                *  status as set by the JTAGEN fuse, disabling JTAG debugging and reverting the JTAG pins back to GPIO\r
-                                *  mode.\r
-                                *\r
-                                *  \note This macro is not available for all architectures.\r
-                                */\r
-                               #define JTAG_DISABLE()                  MACROS{                                      \\r
-                                                                               __asm__ __volatile__ (               \\r
-                                                                               "in __tmp_reg__,__SREG__" "\n\t"     \\r
-                                                                               "cli" "\n\t"                         \\r
-                                                                               "out %1, %0" "\n\t"                  \\r
-                                                                               "out __SREG__, __tmp_reg__" "\n\t"   \\r
-                                                                               "out %1, %0" "\n\t"                  \\r
-                                                                               :                                    \\r
-                                                                               : "r" (1 << JTD),                    \\r
-                                                                                 "M" (_SFR_IO_ADDR(MCUCR))          \\r
-                                                                               : "r0");                             \\r
-                                                                       }MACROE\r
-                       \r
-                               /** Defines a volatile \c 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
-                                *  \note This macro is not available for all architectures.\r
-                                */\r
-                               #define JTAG_DEBUG_POINT()              __asm__ __volatile__ ("nop" ::)\r
-\r
-                               /** Defines an explicit JTAG break point in the resulting binary via the assembly \c BREAK statement. When\r
-                                *  a JTAG is used, this causes the program execution to halt when reached until manually resumed.\r
-                                *\r
-                                *  \note This macro is not available for all architectures.\r
-                                */\r
-                               #define JTAG_DEBUG_BREAK()              __asm__ __volatile__ ("break" ::)\r
-\r
-                               /** Macro for testing condition "x" and breaking via \ref JTAG_DEBUG_BREAK() if the condition is false.\r
-                                *\r
-                                *  \note This macro is not available for all architectures.\r
-                                *\r
-                                *  \param[in] Condition  Condition that will be evaluated.\r
-                               */\r
-                               #define JTAG_ASSERT(Condition)          MACROS{ if (!(Condition)) { JTAG_DEBUG_BREAK(); } }MACROE\r
-\r
-                               /** Macro for testing condition \c "x" and writing debug data to the stdout stream if \c false. The stdout stream\r
-                                *  must be pre-initialized before this macro is run and linked to an output device, such as the microcontroller's\r
-                                *  USART peripheral.\r
-                                *\r
-                                *  The output takes the form "{FILENAME}: Function {FUNCTION NAME}, Line {LINE NUMBER}: Assertion {Condition} failed."\r
-                                *\r
-                                *  \note This macro is not available for all architectures.\r
-                                *\r
-                                *  \param[in] Condition  Condition that will be evaluated,\r
-                                */\r
-                               #define STDOUT_ASSERT(Condition)        MACROS{ if (!(x)) { printf_P(PSTR("%s: Function \"%s\", Line %d: "   \\r
-                                                                               "Assertion \"%s\" failed.\r\n"),     \\r
-                                                                               __FILE__, __func__, __LINE__, #Condition); } }MACROE\r
-\r
-                               #if !defined(pgm_read_ptr) || defined(__DOXYGEN__)\r
-                                       /** Reads a pointer out of PROGMEM space on the AVR8 architecture. This is currently a wrapper for the\r
-                                        *  avr-libc \c pgm_read_ptr() macro with a \c void* cast, so that its value can be assigned directly\r
-                                        *  to a pointer variable or used in pointer arithmetic without further casting in C. In a future\r
-                                        *  avr-libc distribution this will be part of the standard API and will be implemented in a more formal\r
-                                        *  manner.\r
-                                        *\r
-                                        *  \note This macro is not available for all architectures.\r
-                                        *\r
-                                        *  \param[in] Address  Address of the pointer to read.\r
-                                        *\r
-                                        *  \return Pointer retrieved from PROGMEM space.\r
-                                        */\r
-                                       #define pgm_read_ptr(Address)        (void*)pgm_read_word(Address)\r
-                               #endif\r
-                       #endif\r
-                       \r
-       /* Disable C linkage for C++ Compilers: */\r
-               #if defined(__cplusplus)\r
-                       }\r
-               #endif\r
-\r
-#endif\r
-\r
-/** @} */\r
-\r
+/*
+             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 Architecture specific definitions relating to specific processor architectures.
+ *
+ *  \copydetails Group_ArchitectureSpecific
+ *
+ *  \note Do not include this file directly, rather include the Common.h header file instead to gain this file's
+ *        functionality.
+ */
+
+/** \ingroup Group_Common
+ *  \defgroup Group_ArchitectureSpecific Architecture Specific Definitions
+ *  \brief Architecture specific definitions relating to specific processor architectures.
+ *
+ *  Architecture specific macros, functions and other definitions, which relate to specific architectures. This
+ *  definitions may or may not be available in some form on other architectures, and thus should be protected by
+ *  preprocessor checks in portable code to prevent compile errors.
+ *
+ *  @{
+ */
+
+#ifndef __LUFA_ARCHSPEC_H__
+#define __LUFA_ARCHSPEC_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
+               
+       /* Enable C linkage for C++ Compilers: */
+               #if defined(__cplusplus)
+                       extern "C" {
+               #endif
+
+       /* Public Interface - May be used in end-application: */
+               /* Macros: */
+                       #if (ARCH == ARCH_AVR8) || defined(__DOXYGEN__)
+                               /** Disables the AVR's JTAG bus in software, until a system reset. This will override the current JTAG
+                                *  status as set by the JTAGEN fuse, disabling JTAG debugging and reverting the JTAG pins back to GPIO
+                                *  mode.
+                                *
+                                *  \note This macro is not available for all architectures.
+                                */
+                               #define JTAG_DISABLE()                  MACROS{                                      \
+                                                                               __asm__ __volatile__ (               \
+                                                                               "in __tmp_reg__,__SREG__" "\n\t"     \
+                                                                               "cli" "\n\t"                         \
+                                                                               "out %1, %0" "\n\t"                  \
+                                                                               "out __SREG__, __tmp_reg__" "\n\t"   \
+                                                                               "out %1, %0" "\n\t"                  \
+                                                                               :                                    \
+                                                                               : "r" (1 << JTD),                    \
+                                                                                 "M" (_SFR_IO_ADDR(MCUCR))          \
+                                                                               : "r0");                             \
+                                                                       }MACROE
+                       
+                               /** Defines a volatile \c 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.
+                                *
+                                *  \note This macro is not available for all architectures.
+                                */
+                               #define JTAG_DEBUG_POINT()              __asm__ __volatile__ ("nop" ::)
+
+                               /** Defines an explicit JTAG break point in the resulting binary via the assembly \c BREAK statement. When
+                                *  a JTAG is used, this causes the program execution to halt when reached until manually resumed.
+                                *
+                                *  \note This macro is not available for all architectures.
+                                */
+                               #define JTAG_DEBUG_BREAK()              __asm__ __volatile__ ("break" ::)
+
+                               /** Macro for testing condition "x" and breaking via \ref JTAG_DEBUG_BREAK() if the condition is false.
+                                *
+                                *  \note This macro is not available for all architectures.
+                                *
+                                *  \param[in] Condition  Condition that will be evaluated.
+                               */
+                               #define JTAG_ASSERT(Condition)          MACROS{ if (!(Condition)) { JTAG_DEBUG_BREAK(); } }MACROE
+
+                               /** Macro for testing condition \c "x" and writing debug data to the stdout stream if \c false. The stdout stream
+                                *  must be pre-initialized before this macro is run and linked to an output device, such as the microcontroller's
+                                *  USART peripheral.
+                                *
+                                *  The output takes the form "{FILENAME}: Function {FUNCTION NAME}, Line {LINE NUMBER}: Assertion {Condition} failed."
+                                *
+                                *  \note This macro is not available for all architectures.
+                                *
+                                *  \param[in] Condition  Condition that will be evaluated,
+                                */
+                               #define STDOUT_ASSERT(Condition)        MACROS{ if (!(x)) { printf_P(PSTR("%s: Function \"%s\", Line %d: "   \
+                                                                               "Assertion \"%s\" failed.\r\n"),     \
+                                                                               __FILE__, __func__, __LINE__, #Condition); } }MACROE
+
+                               #if !defined(pgm_read_ptr) || defined(__DOXYGEN__)
+                                       /** Reads a pointer out of PROGMEM space on the AVR8 architecture. This is currently a wrapper for the
+                                        *  avr-libc \c pgm_read_ptr() macro with a \c void* cast, so that its value can be assigned directly
+                                        *  to a pointer variable or used in pointer arithmetic without further casting in C. In a future
+                                        *  avr-libc distribution this will be part of the standard API and will be implemented in a more formal
+                                        *  manner.
+                                        *
+                                        *  \note This macro is not available for all architectures.
+                                        *
+                                        *  \param[in] Address  Address of the pointer to read.
+                                        *
+                                        *  \return Pointer retrieved from PROGMEM space.
+                                        */
+                                       #define pgm_read_ptr(Address)        (void*)pgm_read_word(Address)
+                               #endif
+                       #endif
+                       
+       /* Disable C linkage for C++ Compilers: */
+               #if defined(__cplusplus)
+                       }
+               #endif
+
+#endif
+
+/** @} */
+