1175 lines
37 KiB
C
1175 lines
37 KiB
C
/**
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* \file
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*
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* \brief Commonly used includes, types and macros.
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*
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* Copyright (C) 2012-2016 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* \asf_license_stop
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*
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*/
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/*
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* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
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*/
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#ifndef UTILS_COMPILER_H_INCLUDED
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#define UTILS_COMPILER_H_INCLUDED
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/**
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* \defgroup group_sam0_utils Compiler abstraction layer and code utilities
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*
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* Compiler abstraction layer and code utilities for Cortex-M0+ based Atmel SAM devices.
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* This module provides various abstraction layers and utilities to make code compatible between different compilers.
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*
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* @{
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*/
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#if (defined __ICCARM__)
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# include <intrinsics.h>
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#endif
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#include <stddef.h>
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#include <parts.h>
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#include <status_codes.h>
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#include <preprocessor.h>
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#include <io.h>
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#ifndef __ASSEMBLY__
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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/**
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* \def UNUSED
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* \brief Marking \a v as a unused parameter or value.
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*/
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#define UNUSED(v) (void)(v)
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/**
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* \def barrier
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* \brief Memory barrier
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*/
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#ifdef __GNUC__
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# define barrier() asm volatile("" ::: "memory")
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#else
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# define barrier() asm ("")
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#endif
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/**
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* \brief Emit the compiler pragma \a arg.
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*
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* \param[in] arg The pragma directive as it would appear after \e \#pragma
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* (i.e. not stringified).
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*/
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#define COMPILER_PRAGMA(arg) _Pragma(#arg)
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/**
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* \def COMPILER_PACK_SET(alignment)
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* \brief Set maximum alignment for subsequent struct and union definitions to \a alignment.
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*/
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#define COMPILER_PACK_SET(alignment) COMPILER_PRAGMA(pack(alignment))
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/**
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* \def COMPILER_PACK_RESET()
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* \brief Set default alignment for subsequent struct and union definitions.
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*/
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#define COMPILER_PACK_RESET() COMPILER_PRAGMA(pack())
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/**
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* \brief Set aligned boundary.
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*/
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#if (defined __GNUC__) || (defined __CC_ARM)
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# define COMPILER_ALIGNED(a) __attribute__((__aligned__(a)))
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#elif (defined __ICCARM__)
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# define COMPILER_ALIGNED(a) COMPILER_PRAGMA(data_alignment = a)
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#endif
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/**
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* \brief Set word-aligned boundary.
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*/
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#if (defined __GNUC__) || defined(__CC_ARM)
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#define COMPILER_WORD_ALIGNED __attribute__((__aligned__(4)))
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#elif (defined __ICCARM__)
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#define COMPILER_WORD_ALIGNED COMPILER_PRAGMA(data_alignment = 4)
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#endif
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/**
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* \def __always_inline
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* \brief The function should always be inlined.
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*
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* This annotation instructs the compiler to ignore its inlining
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* heuristics and inline the function no matter how big it thinks it
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* becomes.
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*/
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#if defined(__CC_ARM)
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# define __always_inline __forceinline
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#elif (defined __GNUC__)
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# define __always_inline __attribute__((__always_inline__))
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#elif (defined __ICCARM__)
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# define __always_inline _Pragma("inline=forced")
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#endif
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/**
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* \def __no_inline
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* \brief The function should never be inlined
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*
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* This annotation instructs the compiler to ignore its inlining
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* heuristics and not inline the function no matter how small it thinks it
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* becomes.
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*/
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#if defined(__CC_ARM)
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# define __no_inline __attribute__((noinline))
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#elif (defined __GNUC__)
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# define __no_inline __attribute__((noinline))
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#elif (defined __ICCARM__)
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# define __no_inline _Pragma("inline=never")
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#endif
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/** \brief This macro is used to test fatal errors.
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*
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* The macro tests if the expression is false. If it is, a fatal error is
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* detected and the application hangs up. If \c TEST_SUITE_DEFINE_ASSERT_MACRO
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* is defined, a unit test version of the macro is used, to allow execution
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* of further tests after a false expression.
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*
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* \param[in] expr Expression to evaluate and supposed to be nonzero.
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*/
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#if defined(_ASSERT_ENABLE_)
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# if defined(TEST_SUITE_DEFINE_ASSERT_MACRO)
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# include "unit_test/suite.h"
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# else
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# undef TEST_SUITE_DEFINE_ASSERT_MACRO
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# define Assert(expr) \
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{\
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if (!(expr)) asm("BKPT #0");\
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}
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# endif
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#else
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# define Assert(expr) ((void) 0)
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#endif
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/* Define WEAK attribute */
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#if defined ( __CC_ARM )
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# define WEAK __attribute__ ((weak))
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#elif defined ( __ICCARM__ )
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# define WEAK __weak
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#elif defined ( __GNUC__ )
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# define WEAK __attribute__ ((weak))
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#endif
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/* Define NO_INIT attribute */
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#if defined ( __CC_ARM )
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# define NO_INIT __attribute__((zero_init))
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#elif defined ( __ICCARM__ )
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# define NO_INIT __no_init
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#elif defined ( __GNUC__ )
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# define NO_INIT __attribute__((section(".no_init")))
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#endif
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#include "interrupt.h"
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/** \name Usual Types
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* @{ */
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#ifndef __cplusplus
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# if !defined(__bool_true_false_are_defined)
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typedef unsigned char bool;
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# endif
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#endif
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typedef uint16_t le16_t;
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typedef uint16_t be16_t;
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typedef uint32_t le32_t;
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typedef uint32_t be32_t;
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typedef uint32_t iram_size_t;
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/** @} */
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/** \name Aliasing Aggregate Types
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* @{ */
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/** 16-bit union. */
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typedef union
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{
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int16_t s16;
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uint16_t u16;
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int8_t s8[2];
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uint8_t u8[2];
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} Union16;
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/** 32-bit union. */
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typedef union
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{
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int32_t s32;
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uint32_t u32;
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int16_t s16[2];
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uint16_t u16[2];
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int8_t s8[4];
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uint8_t u8[4];
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} Union32;
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/** 64-bit union. */
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typedef union
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{
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int64_t s64;
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uint64_t u64;
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int32_t s32[2];
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uint32_t u32[2];
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int16_t s16[4];
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uint16_t u16[4];
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int8_t s8[8];
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uint8_t u8[8];
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} Union64;
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/** Union of pointers to 64-, 32-, 16- and 8-bit unsigned integers. */
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typedef union
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{
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int64_t *s64ptr;
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uint64_t *u64ptr;
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int32_t *s32ptr;
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uint32_t *u32ptr;
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int16_t *s16ptr;
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uint16_t *u16ptr;
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int8_t *s8ptr;
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uint8_t *u8ptr;
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} UnionPtr;
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/** Union of pointers to volatile 64-, 32-, 16- and 8-bit unsigned integers. */
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typedef union
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{
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volatile int64_t *s64ptr;
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volatile uint64_t *u64ptr;
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volatile int32_t *s32ptr;
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volatile uint32_t *u32ptr;
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volatile int16_t *s16ptr;
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volatile uint16_t *u16ptr;
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volatile int8_t *s8ptr;
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volatile uint8_t *u8ptr;
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} UnionVPtr;
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/** Union of pointers to constant 64-, 32-, 16- and 8-bit unsigned integers. */
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typedef union
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{
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const int64_t *s64ptr;
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const uint64_t *u64ptr;
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const int32_t *s32ptr;
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const uint32_t *u32ptr;
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const int16_t *s16ptr;
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const uint16_t *u16ptr;
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const int8_t *s8ptr;
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const uint8_t *u8ptr;
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} UnionCPtr;
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/** Union of pointers to constant volatile 64-, 32-, 16- and 8-bit unsigned integers. */
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typedef union
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{
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const volatile int64_t *s64ptr;
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const volatile uint64_t *u64ptr;
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const volatile int32_t *s32ptr;
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const volatile uint32_t *u32ptr;
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const volatile int16_t *s16ptr;
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const volatile uint16_t *u16ptr;
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const volatile int8_t *s8ptr;
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const volatile uint8_t *u8ptr;
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} UnionCVPtr;
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/** Structure of pointers to 64-, 32-, 16- and 8-bit unsigned integers. */
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typedef struct
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{
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int64_t *s64ptr;
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uint64_t *u64ptr;
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int32_t *s32ptr;
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uint32_t *u32ptr;
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int16_t *s16ptr;
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uint16_t *u16ptr;
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int8_t *s8ptr;
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uint8_t *u8ptr;
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} StructPtr;
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/** Structure of pointers to volatile 64-, 32-, 16- and 8-bit unsigned integers. */
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typedef struct
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{
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volatile int64_t *s64ptr;
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volatile uint64_t *u64ptr;
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volatile int32_t *s32ptr;
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volatile uint32_t *u32ptr;
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volatile int16_t *s16ptr;
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volatile uint16_t *u16ptr;
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volatile int8_t *s8ptr;
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volatile uint8_t *u8ptr;
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} StructVPtr;
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/** Structure of pointers to constant 64-, 32-, 16- and 8-bit unsigned integers. */
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typedef struct
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{
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const int64_t *s64ptr;
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const uint64_t *u64ptr;
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const int32_t *s32ptr;
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const uint32_t *u32ptr;
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const int16_t *s16ptr;
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const uint16_t *u16ptr;
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const int8_t *s8ptr;
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const uint8_t *u8ptr;
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} StructCPtr;
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/** Structure of pointers to constant volatile 64-, 32-, 16- and 8-bit unsigned integers. */
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typedef struct
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{
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const volatile int64_t *s64ptr;
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const volatile uint64_t *u64ptr;
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const volatile int32_t *s32ptr;
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const volatile uint32_t *u32ptr;
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const volatile int16_t *s16ptr;
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const volatile uint16_t *u16ptr;
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const volatile int8_t *s8ptr;
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const volatile uint8_t *u8ptr;
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} StructCVPtr;
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/** @} */
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#endif /* #ifndef __ASSEMBLY__ */
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/** \name Usual Constants
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* @{ */
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#define DISABLE 0
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#define ENABLE 1
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#ifndef __cplusplus
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# if !defined(__bool_true_false_are_defined)
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# define false 0
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# define true 1
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# endif
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#endif
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/** @} */
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#ifndef __ASSEMBLY__
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/** \name Optimization Control
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* @{ */
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/**
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* \def likely(exp)
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* \brief The expression \a exp is likely to be true
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*/
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#if !defined(likely) || defined(__DOXYGEN__)
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# define likely(exp) (exp)
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#endif
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/**
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* \def unlikely(exp)
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* \brief The expression \a exp is unlikely to be true
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*/
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#if !defined(unlikely) || defined(__DOXYGEN__)
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# define unlikely(exp) (exp)
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#endif
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/**
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* \def is_constant(exp)
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* \brief Determine if an expression evaluates to a constant value.
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*
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* \param[in] exp Any expression
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*
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* \return true if \a exp is constant, false otherwise.
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*/
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#if (defined __GNUC__) || (defined __CC_ARM)
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# define is_constant(exp) __builtin_constant_p(exp)
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#else
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# define is_constant(exp) (0)
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#endif
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/** @} */
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/** \name Bit-Field Handling
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* @{ */
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/** \brief Reads the bits of a value specified by a given bit-mask.
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*
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* \param[in] value Value to read bits from.
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* \param[in] mask Bit-mask indicating bits to read.
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*
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* \return Read bits.
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*/
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#define Rd_bits( value, mask) ((value) & (mask))
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/** \brief Writes the bits of a C lvalue specified by a given bit-mask.
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*
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* \param[in] lvalue C lvalue to write bits to.
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* \param[in] mask Bit-mask indicating bits to write.
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* \param[in] bits Bits to write.
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*
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* \return Resulting value with written bits.
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*/
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#define Wr_bits(lvalue, mask, bits) ((lvalue) = ((lvalue) & ~(mask)) |\
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((bits ) & (mask)))
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/** \brief Tests the bits of a value specified by a given bit-mask.
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*
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* \param[in] value Value of which to test bits.
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* \param[in] mask Bit-mask indicating bits to test.
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*
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* \return \c 1 if at least one of the tested bits is set, else \c 0.
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*/
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#define Tst_bits( value, mask) (Rd_bits(value, mask) != 0)
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/** \brief Clears the bits of a C lvalue specified by a given bit-mask.
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*
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* \param[in] lvalue C lvalue of which to clear bits.
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* \param[in] mask Bit-mask indicating bits to clear.
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*
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* \return Resulting value with cleared bits.
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*/
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#define Clr_bits(lvalue, mask) ((lvalue) &= ~(mask))
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/** \brief Sets the bits of a C lvalue specified by a given bit-mask.
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*
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* \param[in] lvalue C lvalue of which to set bits.
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* \param[in] mask Bit-mask indicating bits to set.
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*
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* \return Resulting value with set bits.
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*/
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#define Set_bits(lvalue, mask) ((lvalue) |= (mask))
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/** \brief Toggles the bits of a C lvalue specified by a given bit-mask.
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*
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* \param[in] lvalue C lvalue of which to toggle bits.
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* \param[in] mask Bit-mask indicating bits to toggle.
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*
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* \return Resulting value with toggled bits.
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*/
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#define Tgl_bits(lvalue, mask) ((lvalue) ^= (mask))
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/** \brief Reads the bit-field of a value specified by a given bit-mask.
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*
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* \param[in] value Value to read a bit-field from.
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* \param[in] mask Bit-mask indicating the bit-field to read.
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*
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* \return Read bit-field.
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*/
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#define Rd_bitfield( value, mask) (Rd_bits( value, mask) >> ctz(mask))
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/** \brief Writes the bit-field of a C lvalue specified by a given bit-mask.
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*
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* \param[in] lvalue C lvalue to write a bit-field to.
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* \param[in] mask Bit-mask indicating the bit-field to write.
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* \param[in] bitfield Bit-field to write.
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*
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* \return Resulting value with written bit-field.
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*/
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#define Wr_bitfield(lvalue, mask, bitfield) (Wr_bits(lvalue, mask, (uint32_t)(bitfield) << ctz(mask)))
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/** @} */
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/** \name Zero-Bit Counting
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*
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* Under GCC, __builtin_clz and __builtin_ctz behave like macros when
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* applied to constant expressions (values known at compile time), so they are
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* more optimized than the use of the corresponding assembly instructions and
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* they can be used as constant expressions e.g. to initialize objects having
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* static storage duration, and like the corresponding assembly instructions
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* when applied to non-constant expressions (values unknown at compile time), so
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* they are more optimized than an assembly periphrasis. Hence, clz and ctz
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* ensure a possible and optimized behavior for both constant and non-constant
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* expressions.
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*
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* @{ */
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/** \brief Counts the leading zero bits of the given value considered as a 32-bit integer.
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*
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* \param[in] u Value of which to count the leading zero bits.
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*
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* \return The count of leading zero bits in \a u.
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*/
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#if (defined __GNUC__) || (defined __CC_ARM)
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# define clz(u) ((u) ? __builtin_clz(u) : 32)
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#else
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# define clz(u) (((u) == 0) ? 32 : \
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((u) & (1ul << 31)) ? 0 : \
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((u) & (1ul << 30)) ? 1 : \
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((u) & (1ul << 29)) ? 2 : \
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((u) & (1ul << 28)) ? 3 : \
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|
((u) & (1ul << 27)) ? 4 : \
|
|
((u) & (1ul << 26)) ? 5 : \
|
|
((u) & (1ul << 25)) ? 6 : \
|
|
((u) & (1ul << 24)) ? 7 : \
|
|
((u) & (1ul << 23)) ? 8 : \
|
|
((u) & (1ul << 22)) ? 9 : \
|
|
((u) & (1ul << 21)) ? 10 : \
|
|
((u) & (1ul << 20)) ? 11 : \
|
|
((u) & (1ul << 19)) ? 12 : \
|
|
((u) & (1ul << 18)) ? 13 : \
|
|
((u) & (1ul << 17)) ? 14 : \
|
|
((u) & (1ul << 16)) ? 15 : \
|
|
((u) & (1ul << 15)) ? 16 : \
|
|
((u) & (1ul << 14)) ? 17 : \
|
|
((u) & (1ul << 13)) ? 18 : \
|
|
((u) & (1ul << 12)) ? 19 : \
|
|
((u) & (1ul << 11)) ? 20 : \
|
|
((u) & (1ul << 10)) ? 21 : \
|
|
((u) & (1ul << 9)) ? 22 : \
|
|
((u) & (1ul << 8)) ? 23 : \
|
|
((u) & (1ul << 7)) ? 24 : \
|
|
((u) & (1ul << 6)) ? 25 : \
|
|
((u) & (1ul << 5)) ? 26 : \
|
|
((u) & (1ul << 4)) ? 27 : \
|
|
((u) & (1ul << 3)) ? 28 : \
|
|
((u) & (1ul << 2)) ? 29 : \
|
|
((u) & (1ul << 1)) ? 30 : \
|
|
31)
|
|
#endif
|
|
|
|
/** \brief Counts the trailing zero bits of the given value considered as a 32-bit integer.
|
|
*
|
|
* \param[in] u Value of which to count the trailing zero bits.
|
|
*
|
|
* \return The count of trailing zero bits in \a u.
|
|
*/
|
|
#if (defined __GNUC__) || (defined __CC_ARM)
|
|
# define ctz(u) ((u) ? __builtin_ctz(u) : 32)
|
|
#else
|
|
# define ctz(u) ((u) & (1ul << 0) ? 0 : \
|
|
(u) & (1ul << 1) ? 1 : \
|
|
(u) & (1ul << 2) ? 2 : \
|
|
(u) & (1ul << 3) ? 3 : \
|
|
(u) & (1ul << 4) ? 4 : \
|
|
(u) & (1ul << 5) ? 5 : \
|
|
(u) & (1ul << 6) ? 6 : \
|
|
(u) & (1ul << 7) ? 7 : \
|
|
(u) & (1ul << 8) ? 8 : \
|
|
(u) & (1ul << 9) ? 9 : \
|
|
(u) & (1ul << 10) ? 10 : \
|
|
(u) & (1ul << 11) ? 11 : \
|
|
(u) & (1ul << 12) ? 12 : \
|
|
(u) & (1ul << 13) ? 13 : \
|
|
(u) & (1ul << 14) ? 14 : \
|
|
(u) & (1ul << 15) ? 15 : \
|
|
(u) & (1ul << 16) ? 16 : \
|
|
(u) & (1ul << 17) ? 17 : \
|
|
(u) & (1ul << 18) ? 18 : \
|
|
(u) & (1ul << 19) ? 19 : \
|
|
(u) & (1ul << 20) ? 20 : \
|
|
(u) & (1ul << 21) ? 21 : \
|
|
(u) & (1ul << 22) ? 22 : \
|
|
(u) & (1ul << 23) ? 23 : \
|
|
(u) & (1ul << 24) ? 24 : \
|
|
(u) & (1ul << 25) ? 25 : \
|
|
(u) & (1ul << 26) ? 26 : \
|
|
(u) & (1ul << 27) ? 27 : \
|
|
(u) & (1ul << 28) ? 28 : \
|
|
(u) & (1ul << 29) ? 29 : \
|
|
(u) & (1ul << 30) ? 30 : \
|
|
(u) & (1ul << 31) ? 31 : \
|
|
32)
|
|
#endif
|
|
|
|
/** @} */
|
|
|
|
|
|
/** \name Bit Reversing
|
|
* @{ */
|
|
|
|
/** \brief Reverses the bits of \a u8.
|
|
*
|
|
* \param[in] u8 U8 of which to reverse the bits.
|
|
*
|
|
* \return Value resulting from \a u8 with reversed bits.
|
|
*/
|
|
#define bit_reverse8(u8) ((U8)(bit_reverse32((U8)(u8)) >> 24))
|
|
|
|
/** \brief Reverses the bits of \a u16.
|
|
*
|
|
* \param[in] u16 U16 of which to reverse the bits.
|
|
*
|
|
* \return Value resulting from \a u16 with reversed bits.
|
|
*/
|
|
#define bit_reverse16(u16) ((uint16_t)(bit_reverse32((uint16_t)(u16)) >> 16))
|
|
|
|
/** \brief Reverses the bits of \a u32.
|
|
*
|
|
* \param[in] u32 U32 of which to reverse the bits.
|
|
*
|
|
* \return Value resulting from \a u32 with reversed bits.
|
|
*/
|
|
#define bit_reverse32(u32) __RBIT(u32)
|
|
|
|
/** \brief Reverses the bits of \a u64.
|
|
*
|
|
* \param[in] u64 U64 of which to reverse the bits.
|
|
*
|
|
* \return Value resulting from \a u64 with reversed bits.
|
|
*/
|
|
#define bit_reverse64(u64) ((uint64_t)(((uint64_t)bit_reverse32((uint64_t)(u64) >> 32)) |\
|
|
((uint64_t)bit_reverse32((uint64_t)(u64)) << 32)))
|
|
|
|
/** @} */
|
|
|
|
|
|
/** \name Alignment
|
|
* @{ */
|
|
|
|
/** \brief Tests alignment of the number \a val with the \a n boundary.
|
|
*
|
|
* \param[in] val Input value.
|
|
* \param[in] n Boundary.
|
|
*
|
|
* \return \c 1 if the number \a val is aligned with the \a n boundary, else \c 0.
|
|
*/
|
|
#define Test_align(val, n) (!Tst_bits( val, (n) - 1 ) )
|
|
|
|
/** \brief Gets alignment of the number \a val with respect to the \a n boundary.
|
|
*
|
|
* \param[in] val Input value.
|
|
* \param[in] n Boundary.
|
|
*
|
|
* \return Alignment of the number \a val with respect to the \a n boundary.
|
|
*/
|
|
#define Get_align(val, n) ( Rd_bits( val, (n) - 1 ) )
|
|
|
|
/** \brief Sets alignment of the lvalue number \a lval to \a alg with respect to the \a n boundary.
|
|
*
|
|
* \param[in] lval Input/output lvalue.
|
|
* \param[in] n Boundary.
|
|
* \param[in] alg Alignment.
|
|
*
|
|
* \return New value of \a lval resulting from its alignment set to \a alg with respect to the \a n boundary.
|
|
*/
|
|
#define Set_align(lval, n, alg) ( Wr_bits(lval, (n) - 1, alg) )
|
|
|
|
/** \brief Aligns the number \a val with the upper \a n boundary.
|
|
*
|
|
* \param[in] val Input value.
|
|
* \param[in] n Boundary.
|
|
*
|
|
* \return Value resulting from the number \a val aligned with the upper \a n boundary.
|
|
*/
|
|
#define Align_up( val, n) (((val) + ((n) - 1)) & ~((n) - 1))
|
|
|
|
/** \brief Aligns the number \a val with the lower \a n boundary.
|
|
*
|
|
* \param[in] val Input value.
|
|
* \param[in] n Boundary.
|
|
*
|
|
* \return Value resulting from the number \a val aligned with the lower \a n boundary.
|
|
*/
|
|
#define Align_down(val, n) ( (val) & ~((n) - 1))
|
|
|
|
/** @} */
|
|
|
|
|
|
/** \name Mathematics
|
|
*
|
|
* The same considerations as for clz and ctz apply here but GCC does not
|
|
* provide built-in functions to access the assembly instructions abs, min and
|
|
* max and it does not produce them by itself in most cases, so two sets of
|
|
* macros are defined here:
|
|
* - Abs, Min and Max to apply to constant expressions (values known at
|
|
* compile time);
|
|
* - abs, min and max to apply to non-constant expressions (values unknown at
|
|
* compile time), abs is found in stdlib.h.
|
|
*
|
|
* @{ */
|
|
|
|
/** \brief Takes the absolute value of \a a.
|
|
*
|
|
* \param[in] a Input value.
|
|
*
|
|
* \return Absolute value of \a a.
|
|
*
|
|
* \note More optimized if only used with values known at compile time.
|
|
*/
|
|
#define Abs(a) (((a) < 0 ) ? -(a) : (a))
|
|
|
|
#ifndef __cplusplus
|
|
/** \brief Takes the minimal value of \a a and \a b.
|
|
*
|
|
* \param[in] a Input value.
|
|
* \param[in] b Input value.
|
|
*
|
|
* \return Minimal value of \a a and \a b.
|
|
*
|
|
* \note More optimized if only used with values known at compile time.
|
|
*/
|
|
#define Min(a, b) (((a) < (b)) ? (a) : (b))
|
|
|
|
/** \brief Takes the maximal value of \a a and \a b.
|
|
*
|
|
* \param[in] a Input value.
|
|
* \param[in] b Input value.
|
|
*
|
|
* \return Maximal value of \a a and \a b.
|
|
*
|
|
* \note More optimized if only used with values known at compile time.
|
|
*/
|
|
#define Max(a, b) (((a) > (b)) ? (a) : (b))
|
|
|
|
/** \brief Takes the minimal value of \a a and \a b.
|
|
*
|
|
* \param[in] a Input value.
|
|
* \param[in] b Input value.
|
|
*
|
|
* \return Minimal value of \a a and \a b.
|
|
*
|
|
* \note More optimized if only used with values unknown at compile time.
|
|
*/
|
|
#define min(a, b) Min(a, b)
|
|
|
|
/** \brief Takes the maximal value of \a a and \a b.
|
|
*
|
|
* \param[in] a Input value.
|
|
* \param[in] b Input value.
|
|
*
|
|
* \return Maximal value of \a a and \a b.
|
|
*
|
|
* \note More optimized if only used with values unknown at compile time.
|
|
*/
|
|
#define max(a, b) Max(a, b)
|
|
#endif
|
|
|
|
/** @} */
|
|
|
|
|
|
/** \brief Calls the routine at address \a addr.
|
|
*
|
|
* It generates a long call opcode.
|
|
*
|
|
* For example, `Long_call(0x80000000)' generates a software reset on a UC3 if
|
|
* it is invoked from the CPU supervisor mode.
|
|
*
|
|
* \param[in] addr Address of the routine to call.
|
|
*
|
|
* \note It may be used as a long jump opcode in some special cases.
|
|
*/
|
|
#define Long_call(addr) ((*(void (*)(void))(addr))())
|
|
|
|
|
|
/** \name MCU Endianism Handling
|
|
* ARM is MCU little endian.
|
|
*
|
|
* @{ */
|
|
#define BE16(x) swap16(x)
|
|
#define LE16(x) (x)
|
|
|
|
#define le16_to_cpu(x) (x)
|
|
#define cpu_to_le16(x) (x)
|
|
#define LE16_TO_CPU(x) (x)
|
|
#define CPU_TO_LE16(x) (x)
|
|
|
|
#define be16_to_cpu(x) swap16(x)
|
|
#define cpu_to_be16(x) swap16(x)
|
|
#define BE16_TO_CPU(x) swap16(x)
|
|
#define CPU_TO_BE16(x) swap16(x)
|
|
|
|
#define le32_to_cpu(x) (x)
|
|
#define cpu_to_le32(x) (x)
|
|
#define LE32_TO_CPU(x) (x)
|
|
#define CPU_TO_LE32(x) (x)
|
|
|
|
#define be32_to_cpu(x) swap32(x)
|
|
#define cpu_to_be32(x) swap32(x)
|
|
#define BE32_TO_CPU(x) swap32(x)
|
|
#define CPU_TO_BE32(x) swap32(x)
|
|
/** @} */
|
|
|
|
|
|
/** \name Endianism Conversion
|
|
*
|
|
* The same considerations as for clz and ctz apply here but GCC's
|
|
* __builtin_bswap_32 and __builtin_bswap_64 do not behave like macros when
|
|
* applied to constant expressions, so two sets of macros are defined here:
|
|
* - Swap16, Swap32 and Swap64 to apply to constant expressions (values known
|
|
* at compile time);
|
|
* - swap16, swap32 and swap64 to apply to non-constant expressions (values
|
|
* unknown at compile time).
|
|
*
|
|
* @{ */
|
|
|
|
/** \brief Toggles the endianism of \a u16 (by swapping its bytes).
|
|
*
|
|
* \param[in] u16 U16 of which to toggle the endianism.
|
|
*
|
|
* \return Value resulting from \a u16 with toggled endianism.
|
|
*
|
|
* \note More optimized if only used with values known at compile time.
|
|
*/
|
|
#define Swap16(u16) ((uint16_t)(((uint16_t)(u16) >> 8) |\
|
|
((uint16_t)(u16) << 8)))
|
|
|
|
/** \brief Toggles the endianism of \a u32 (by swapping its bytes).
|
|
*
|
|
* \param[in] u32 U32 of which to toggle the endianism.
|
|
*
|
|
* \return Value resulting from \a u32 with toggled endianism.
|
|
*
|
|
* \note More optimized if only used with values known at compile time.
|
|
*/
|
|
#define Swap32(u32) ((uint32_t)(((uint32_t)Swap16((uint32_t)(u32) >> 16)) |\
|
|
((uint32_t)Swap16((uint32_t)(u32)) << 16)))
|
|
|
|
/** \brief Toggles the endianism of \a u64 (by swapping its bytes).
|
|
*
|
|
* \param[in] u64 U64 of which to toggle the endianism.
|
|
*
|
|
* \return Value resulting from \a u64 with toggled endianism.
|
|
*
|
|
* \note More optimized if only used with values known at compile time.
|
|
*/
|
|
#define Swap64(u64) ((uint64_t)(((uint64_t)Swap32((uint64_t)(u64) >> 32)) |\
|
|
((uint64_t)Swap32((uint64_t)(u64)) << 32)))
|
|
|
|
/** \brief Toggles the endianism of \a u16 (by swapping its bytes).
|
|
*
|
|
* \param[in] u16 U16 of which to toggle the endianism.
|
|
*
|
|
* \return Value resulting from \a u16 with toggled endianism.
|
|
*
|
|
* \note More optimized if only used with values unknown at compile time.
|
|
*/
|
|
#define swap16(u16) Swap16(u16)
|
|
|
|
/** \brief Toggles the endianism of \a u32 (by swapping its bytes).
|
|
*
|
|
* \param[in] u32 U32 of which to toggle the endianism.
|
|
*
|
|
* \return Value resulting from \a u32 with toggled endianism.
|
|
*
|
|
* \note More optimized if only used with values unknown at compile time.
|
|
*/
|
|
#if (defined __GNUC__)
|
|
# define swap32(u32) ((uint32_t)__builtin_bswap32((uint32_t)(u32)))
|
|
#else
|
|
# define swap32(u32) Swap32(u32)
|
|
#endif
|
|
|
|
/** \brief Toggles the endianism of \a u64 (by swapping its bytes).
|
|
*
|
|
* \param[in] u64 U64 of which to toggle the endianism.
|
|
*
|
|
* \return Value resulting from \a u64 with toggled endianism.
|
|
*
|
|
* \note More optimized if only used with values unknown at compile time.
|
|
*/
|
|
#if (defined __GNUC__)
|
|
# define swap64(u64) ((uint64_t)__builtin_bswap64((uint64_t)(u64)))
|
|
#else
|
|
# define swap64(u64) ((uint64_t)(((uint64_t)swap32((uint64_t)(u64) >> 32)) |\
|
|
((uint64_t)swap32((uint64_t)(u64)) << 32)))
|
|
#endif
|
|
|
|
/** @} */
|
|
|
|
|
|
/** \name Target Abstraction
|
|
*
|
|
* @{ */
|
|
|
|
#define _GLOBEXT_ extern /**< extern storage-class specifier. */
|
|
#define _CONST_TYPE_ const /**< const type qualifier. */
|
|
#define _MEM_TYPE_SLOW_ /**< Slow memory type. */
|
|
#define _MEM_TYPE_MEDFAST_ /**< Fairly fast memory type. */
|
|
#define _MEM_TYPE_FAST_ /**< Fast memory type. */
|
|
|
|
#define memcmp_ram2ram memcmp /**< Target-specific memcmp of RAM to RAM. */
|
|
#define memcmp_code2ram memcmp /**< Target-specific memcmp of RAM to NVRAM. */
|
|
#define memcpy_ram2ram memcpy /**< Target-specific memcpy from RAM to RAM. */
|
|
#define memcpy_code2ram memcpy /**< Target-specific memcpy from NVRAM to RAM. */
|
|
|
|
/** @} */
|
|
|
|
/**
|
|
* \brief Calculate \f$ \left\lceil \frac{a}{b} \right\rceil \f$ using
|
|
* integer arithmetic.
|
|
*
|
|
* \param[in] a An integer
|
|
* \param[in] b Another integer
|
|
*
|
|
* \return (\a a / \a b) rounded up to the nearest integer.
|
|
*/
|
|
#define div_ceil(a, b) (((a) + (b) - 1) / (b))
|
|
|
|
#endif /* #ifndef __ASSEMBLY__ */
|
|
#ifdef __ICCARM__
|
|
/** \name Compiler Keywords
|
|
*
|
|
* Port of some keywords from GCC to IAR Embedded Workbench.
|
|
*
|
|
* @{ */
|
|
|
|
#define __asm__ asm
|
|
#define __inline__ inline
|
|
#define __volatile__
|
|
|
|
/** @} */
|
|
|
|
#endif
|
|
|
|
#define FUNC_PTR void *
|
|
/**
|
|
* \def unused
|
|
* \brief Marking \a v as a unused parameter or value.
|
|
*/
|
|
#define unused(v) do { (void)(v); } while(0)
|
|
|
|
/* Define RAMFUNC attribute */
|
|
#if defined ( __CC_ARM ) /* Keil uVision 4 */
|
|
# define RAMFUNC __attribute__ ((section(".ramfunc")))
|
|
#elif defined ( __ICCARM__ ) /* IAR Ewarm 5.41+ */
|
|
# define RAMFUNC __ramfunc
|
|
#elif defined ( __GNUC__ ) /* GCC CS3 2009q3-68 */
|
|
# define RAMFUNC __attribute__ ((section(".ramfunc")))
|
|
#endif
|
|
|
|
/* Define OPTIMIZE_HIGH attribute */
|
|
#if defined ( __CC_ARM ) /* Keil uVision 4 */
|
|
# define OPTIMIZE_HIGH _Pragma("O3")
|
|
#elif defined ( __ICCARM__ ) /* IAR Ewarm 5.41+ */
|
|
# define OPTIMIZE_HIGH _Pragma("optimize=high")
|
|
#elif defined ( __GNUC__ ) /* GCC CS3 2009q3-68 */
|
|
# define OPTIMIZE_HIGH __attribute__((optimize("s")))
|
|
#endif
|
|
#define PASS 0
|
|
#define FAIL 1
|
|
#define LOW 0
|
|
#define HIGH 1
|
|
|
|
typedef int8_t S8 ; //!< 8-bit signed integer.
|
|
typedef uint8_t U8 ; //!< 8-bit unsigned integer.
|
|
typedef int16_t S16; //!< 16-bit signed integer.
|
|
typedef uint16_t U16; //!< 16-bit unsigned integer.
|
|
typedef int32_t S32; //!< 32-bit signed integer.
|
|
typedef uint32_t U32; //!< 32-bit unsigned integer.
|
|
typedef int64_t S64; //!< 64-bit signed integer.
|
|
typedef uint64_t U64; //!< 64-bit unsigned integer.
|
|
typedef float F32; //!< 32-bit floating-point number.
|
|
typedef double F64; //!< 64-bit floating-point number.
|
|
|
|
#define MSB(u16) (((U8 *)&(u16))[1]) //!< Most significant byte of \a u16.
|
|
#define LSB(u16) (((U8 *)&(u16))[0]) //!< Least significant byte of \a u16.
|
|
|
|
#define MSH(u32) (((U16 *)&(u32))[1]) //!< Most significant half-word of \a u32.
|
|
#define LSH(u32) (((U16 *)&(u32))[0]) //!< Least significant half-word of \a u32.
|
|
#define MSB0W(u32) (((U8 *)&(u32))[3]) //!< Most significant byte of 1st rank of \a u32.
|
|
#define MSB1W(u32) (((U8 *)&(u32))[2]) //!< Most significant byte of 2nd rank of \a u32.
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#define MSB2W(u32) (((U8 *)&(u32))[1]) //!< Most significant byte of 3rd rank of \a u32.
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#define MSB3W(u32) (((U8 *)&(u32))[0]) //!< Most significant byte of 4th rank of \a u32.
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#define LSB3W(u32) MSB0W(u32) //!< Least significant byte of 4th rank of \a u32.
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#define LSB2W(u32) MSB1W(u32) //!< Least significant byte of 3rd rank of \a u32.
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#define LSB1W(u32) MSB2W(u32) //!< Least significant byte of 2nd rank of \a u32.
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#define LSB0W(u32) MSB3W(u32) //!< Least significant byte of 1st rank of \a u32.
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#define MSW(u64) (((U32 *)&(u64))[1]) //!< Most significant word of \a u64.
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#define LSW(u64) (((U32 *)&(u64))[0]) //!< Least significant word of \a u64.
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#define MSH0(u64) (((U16 *)&(u64))[3]) //!< Most significant half-word of 1st rank of \a u64.
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#define MSH1(u64) (((U16 *)&(u64))[2]) //!< Most significant half-word of 2nd rank of \a u64.
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#define MSH2(u64) (((U16 *)&(u64))[1]) //!< Most significant half-word of 3rd rank of \a u64.
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#define MSH3(u64) (((U16 *)&(u64))[0]) //!< Most significant half-word of 4th rank of \a u64.
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#define LSH3(u64) MSH0(u64) //!< Least significant half-word of 4th rank of \a u64.
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#define LSH2(u64) MSH1(u64) //!< Least significant half-word of 3rd rank of \a u64.
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#define LSH1(u64) MSH2(u64) //!< Least significant half-word of 2nd rank of \a u64.
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#define LSH0(u64) MSH3(u64) //!< Least significant half-word of 1st rank of \a u64.
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#define MSB0D(u64) (((U8 *)&(u64))[7]) //!< Most significant byte of 1st rank of \a u64.
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#define MSB1D(u64) (((U8 *)&(u64))[6]) //!< Most significant byte of 2nd rank of \a u64.
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#define MSB2D(u64) (((U8 *)&(u64))[5]) //!< Most significant byte of 3rd rank of \a u64.
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#define MSB3D(u64) (((U8 *)&(u64))[4]) //!< Most significant byte of 4th rank of \a u64.
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#define MSB4D(u64) (((U8 *)&(u64))[3]) //!< Most significant byte of 5th rank of \a u64.
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#define MSB5D(u64) (((U8 *)&(u64))[2]) //!< Most significant byte of 6th rank of \a u64.
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#define MSB6D(u64) (((U8 *)&(u64))[1]) //!< Most significant byte of 7th rank of \a u64.
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#define MSB7D(u64) (((U8 *)&(u64))[0]) //!< Most significant byte of 8th rank of \a u64.
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#define LSB7D(u64) MSB0D(u64) //!< Least significant byte of 8th rank of \a u64.
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#define LSB6D(u64) MSB1D(u64) //!< Least significant byte of 7th rank of \a u64.
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#define LSB5D(u64) MSB2D(u64) //!< Least significant byte of 6th rank of \a u64.
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#define LSB4D(u64) MSB3D(u64) //!< Least significant byte of 5th rank of \a u64.
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#define LSB3D(u64) MSB4D(u64) //!< Least significant byte of 4th rank of \a u64.
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#define LSB2D(u64) MSB5D(u64) //!< Least significant byte of 3rd rank of \a u64.
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#define LSB1D(u64) MSB6D(u64) //!< Least significant byte of 2nd rank of \a u64.
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#define LSB0D(u64) MSB7D(u64) //!< Least significant byte of 1st rank of \a u64.
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#define LSB0(u32) LSB0W(u32) //!< Least significant byte of 1st rank of \a u32.
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#define LSB1(u32) LSB1W(u32) //!< Least significant byte of 2nd rank of \a u32.
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#define LSB2(u32) LSB2W(u32) //!< Least significant byte of 3rd rank of \a u32.
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#define LSB3(u32) LSB3W(u32) //!< Least significant byte of 4th rank of \a u32.
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#define MSB3(u32) MSB3W(u32) //!< Most significant byte of 4th rank of \a u32.
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#define MSB2(u32) MSB2W(u32) //!< Most significant byte of 3rd rank of \a u32.
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#define MSB1(u32) MSB1W(u32) //!< Most significant byte of 2nd rank of \a u32.
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#define MSB0(u32) MSB0W(u32) //!< Most significant byte of 1st rank of \a u32.
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#if defined(__ICCARM__)
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|
#define SHORTENUM __packed
|
|
#elif defined(__GNUC__)
|
|
#define SHORTENUM __attribute__((packed))
|
|
#endif
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|
|
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/* No operation */
|
|
#if defined(__ICCARM__)
|
|
#define nop() __no_operation()
|
|
#elif defined(__GNUC__)
|
|
#define nop() (__NOP())
|
|
#endif
|
|
|
|
#define FLASH_DECLARE(x) const x
|
|
#define FLASH_EXTERN(x) extern const x
|
|
#define PGM_READ_BYTE(x) *(x)
|
|
#define PGM_READ_WORD(x) *(x)
|
|
#define MEMCPY_ENDIAN memcpy
|
|
#define PGM_READ_BLOCK(dst, src, len) memcpy((dst), (src), (len))
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|
|
|
/*Defines the Flash Storage for the request and response of MAC*/
|
|
#define CMD_ID_OCTET (0)
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|
|
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/* Converting of values from CPU endian to little endian. */
|
|
#define CPU_ENDIAN_TO_LE16(x) (x)
|
|
#define CPU_ENDIAN_TO_LE32(x) (x)
|
|
#define CPU_ENDIAN_TO_LE64(x) (x)
|
|
|
|
/* Converting of values from little endian to CPU endian. */
|
|
#define LE16_TO_CPU_ENDIAN(x) (x)
|
|
#define LE32_TO_CPU_ENDIAN(x) (x)
|
|
#define LE64_TO_CPU_ENDIAN(x) (x)
|
|
|
|
/* Converting of constants from little endian to CPU endian. */
|
|
#define CLE16_TO_CPU_ENDIAN(x) (x)
|
|
#define CLE32_TO_CPU_ENDIAN(x) (x)
|
|
#define CLE64_TO_CPU_ENDIAN(x) (x)
|
|
|
|
/* Converting of constants from CPU endian to little endian. */
|
|
#define CCPU_ENDIAN_TO_LE16(x) (x)
|
|
#define CCPU_ENDIAN_TO_LE32(x) (x)
|
|
#define CCPU_ENDIAN_TO_LE64(x) (x)
|
|
|
|
#define ADDR_COPY_DST_SRC_16(dst, src) ((dst) = (src))
|
|
#define ADDR_COPY_DST_SRC_64(dst, src) ((dst) = (src))
|
|
|
|
/**
|
|
* @brief Converts a 64-Bit value into a 8 Byte array
|
|
*
|
|
* @param[in] value 64-Bit value
|
|
* @param[out] data Pointer to the 8 Byte array to be updated with 64-Bit value
|
|
* @ingroup apiPalApi
|
|
*/
|
|
static inline void convert_64_bit_to_byte_array(uint64_t value, uint8_t *data)
|
|
{
|
|
uint8_t index = 0;
|
|
|
|
while (index < 8)
|
|
{
|
|
data[index++] = value & 0xFF;
|
|
value = value >> 8;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Converts a 16-Bit value into a 2 Byte array
|
|
*
|
|
* @param[in] value 16-Bit value
|
|
* @param[out] data Pointer to the 2 Byte array to be updated with 16-Bit value
|
|
* @ingroup apiPalApi
|
|
*/
|
|
static inline void convert_16_bit_to_byte_array(uint16_t value, uint8_t *data)
|
|
{
|
|
data[0] = value & 0xFF;
|
|
data[1] = (value >> 8) & 0xFF;
|
|
}
|
|
|
|
/* Converts a 16-Bit value into a 2 Byte array */
|
|
static inline void convert_spec_16_bit_to_byte_array(uint16_t value, uint8_t *data)
|
|
{
|
|
data[0] = value & 0xFF;
|
|
data[1] = (value >> 8) & 0xFF;
|
|
}
|
|
|
|
/* Converts a 16-Bit value into a 2 Byte array */
|
|
static inline void convert_16_bit_to_byte_address(uint16_t value, uint8_t *data)
|
|
{
|
|
data[0] = value & 0xFF;
|
|
data[1] = (value >> 8) & 0xFF;
|
|
}
|
|
|
|
/*
|
|
* @brief Converts a 2 Byte array into a 16-Bit value
|
|
*
|
|
* @param data Specifies the pointer to the 2 Byte array
|
|
*
|
|
* @return 16-Bit value
|
|
* @ingroup apiPalApi
|
|
*/
|
|
static inline uint16_t convert_byte_array_to_16_bit(uint8_t *data)
|
|
{
|
|
return (data[0] | ((uint16_t)data[1] << 8));
|
|
}
|
|
|
|
/* Converts a 4 Byte array into a 32-Bit value */
|
|
static inline uint32_t convert_byte_array_to_32_bit(uint8_t *data)
|
|
{
|
|
union
|
|
{
|
|
uint32_t u32;
|
|
uint8_t u8[4];
|
|
}long_addr;
|
|
uint8_t index;
|
|
for (index = 0; index < 4; index++)
|
|
{
|
|
long_addr.u8[index] = *data++;
|
|
}
|
|
return long_addr.u32;
|
|
}
|
|
|
|
/**
|
|
* @brief Converts a 8 Byte array into a 64-Bit value
|
|
*
|
|
* @param data Specifies the pointer to the 8 Byte array
|
|
*
|
|
* @return 64-Bit value
|
|
* @ingroup apiPalApi
|
|
*/
|
|
static inline uint64_t convert_byte_array_to_64_bit(uint8_t *data)
|
|
{
|
|
union
|
|
{
|
|
uint64_t u64;
|
|
uint8_t u8[8];
|
|
} long_addr;
|
|
|
|
uint8_t index;
|
|
|
|
for (index = 0; index < 8; index++)
|
|
{
|
|
long_addr.u8[index] = *data++;
|
|
}
|
|
|
|
return long_addr.u64;
|
|
}
|
|
|
|
/** @} */
|
|
|
|
#endif /* UTILS_COMPILER_H_INCLUDED */
|