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+/* This file has been prepared for Doxygen automatic documentation generation.*/

+/*! \file *********************************************************************

+ *

+ * \brief This file implements some macros that makes the IAR C-compiler and

+ *        avr-gcc work with the same code base for the AVR architecture.

+ *

+ * \par Documentation

+ *      For comprehensive code documentation, supported compilers, compiler

+ *      settings and supported devices see readme.html

+ *

+ * \author

+ *      Atmel Corporation: http://www.atmel.com \n

+ *      Support email: avr@atmel.com

+ *

+ * $Revision: 613 $

+ * $Date: 2006-04-07 14:40:07 +0200 (fr, 07 apr 2006) $  \n

+ *

+ * Copyright (c) 2008, Atmel Corporation All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *

+ * 1. Redistributions of source code must retain the above copyright notice,

+ * this list of conditions and the following disclaimer.

+ *

+ * 2. Redistributions in binary form must reproduce the above copyright notice,

+ * this list of conditions and the following disclaimer in the documentation

+ * and/or other materials provided with the distribution.

+ *

+ * 3. The name of ATMEL may not be used to endorse or promote products derived

+ * from this software without specific prior written permission.

+ *

+ * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED

+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND

+ * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,

+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ ******************************************************************************/

+

+#ifndef COMPILER_AVR_H

+#define COMPILER_AVR_H

+

+#ifndef F_CPU

+/*! \brief Define default CPU frequency, if this is not already defined. */

+#define F_CPU 2000000UL

+#endif

+

+#include <stdint.h>

+#include <stdbool.h>

+#include <stdlib.h>

+

+/*! \brief This macro will protect the following code from interrupts. */

+#define AVR_ENTER_CRITICAL_REGION( ) uint8_t volatile saved_sreg = SREG; \

+                                     cli();

+

+/*! \brief This macro must always be used in conjunction with AVR_ENTER_CRITICAL_REGION

+ *        so the interrupts are enabled again.

+ */

+#define AVR_LEAVE_CRITICAL_REGION( ) SREG = saved_sreg;

+

+#if defined( __ICCAVR__ )

+

+#include <inavr.h>

+#include <ioavr.h>

+#include <intrinsics.h>

+#include <pgmspace.h>

+

+#ifndef __HAS_ELPM__

+#define _MEMATTR  __flash

+#else /* __HAS_ELPM__ */

+#define _MEMATTR  __farflash

+#endif /* __HAS_ELPM__ */

+

+/*! \brief Perform a delay of \c us microseconds.

+ *

+ *  The macro F_CPU is supposed to be defined to a constant defining the CPU

+ *  clock frequency (in Hertz).

+ *

+ *  The maximal possible delay is 262.14 ms / F_CPU in MHz.

+ *

+ *  \note For the IAR compiler, currently F_CPU must be a

+ *        multiple of 1000000UL (1 MHz).

+ */

+#define delay_us( us )   ( __delay_cycles( ( F_CPU / 1000000UL ) * ( us ) ) )

+

+/*! \brief Preprocessor magic.

+ *

+ *  Some preprocessor magic to allow for a header file abstraction of

+ *  interrupt service routine declarations for the IAR compiler.  This

+ *  requires the use of the C99 _Pragma() directive (rather than the

+ *  old #pragma one that could not be used as a macro replacement), as

+ *  well as two different levels of preprocessor concetanations in

+ *  order to do both, assign the correct interrupt vector name, as well

+ *  as construct a unique function name for the ISR.

+ *

+ *  \note Do *NOT* try to reorder the macros below, as this will only

+ *        work in the given order.

+ */

+#define PRAGMA(x) _Pragma( #x )

+#define ISR(vec) PRAGMA( vector=vec ) __interrupt void handler_##vec(void)

+#define sei( ) (__enable_interrupt( ))

+#define cli( ) (__disable_interrupt( ))

+

+/*! \brief Define the no operation macro. */

+#define nop( ) (__no_operation())

+

+/*! \brief Define the watchdog reset macro. */

+#define watchdog_reset( ) (__watchdog_reset( ))

+

+

+#define INLINE PRAGMA( inline=forced ) static

+

+#define FLASH_DECLARE(x) _MEMATTR x

+#define FLASH_STRING(x) ((_MEMATTR const char *)(x))

+#define FLASH_STRING_T  char const _MEMATTR *

+#define FLASH_BYTE_ARRAY_T uint8_t const _MEMATTR *

+#define PGM_READ_BYTE(x) *(x)

+#define PGM_READ_WORD(x) *(x)

+

+#define SHORTENUM /**/

+

+#elif defined( __GNUC__ )

+

+#include <avr/io.h>

+#include <avr/interrupt.h>

+#include <avr/pgmspace.h>

+#include <util/delay.h>

+

+/*! \brief Define the delay_us macro for GCC. */

+#define delay_us( us )   (_delay_us( us ))

+

+#define INLINE static inline

+

+/*! \brief Define the no operation macro. */

+#define nop()   do { __asm__ __volatile__ ("nop"); } while (0)

+

+#define MAIN_TASK_PROLOGUE int

+

+

+#define MAIN_TASK_EPILOGUE() return -1;

+

+#define SHORTENUM __attribute__ ((packed))

+

+#else

+#error Compiler not supported.

+#endif

+

+#endif

+