Diff: avr_compiler.h

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0:f6e4e1bbb3fe

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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
+
+//#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+/** This macro will protect the following code from interrupts.*/
+#define AVR_ENTER_CRITICAL_REGION( ) uint8_t volatile saved_sreg = SREG; \
+                                     cli();
+
+/** This macro must always be used in conjunction with AVR_ENTER_CRITICAL_REGION
+    so that 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__ */
+
+/**
+   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 ) ) )
+
+/*
+ * 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.
+ *
+ * Do *NOT* try to reorder the macros below, or you'll suddenly find
+ * out about all kinds of IAR bugs...
+ */
+#define PRAGMA(x) _Pragma( #x )
+#define ISR(vec) PRAGMA( vector=vec ) __interrupt void handler_##vec(void)
+#define sei( ) (__enable_interrupt( ))
+#define cli( ) (__disable_interrupt( ))
+
+#define nop( ) (__no_operation())
+
+#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>
+
+#define delay_us( us )   (_delay_us( us ))
+
+#define INLINE static inline
+
+#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
+