unleashed-firmware/lib/ST25RFAL002/utils.h
あく 389ff92cc1
Naming and coding style convention, new linter tool. (#945)
* Makefile, Scripts: new linter
* About: remove ID from IC
* Firmware: remove double define for DIVC/DIVR
* Scripts: check folder names too. Docker: replace syntax check with make lint.
* Reformat Sources and Migrate to new file naming convention
* Docker: symlink clang-format-12 to clang-format
* Add coding style guide
2022-01-05 19:10:18 +03:00

101 lines
3.5 KiB
C

/******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2018 STMicroelectronics</center></h2>
*
* Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/myliberty
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
* AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/*
* PROJECT: NFCC firmware
* $Revision: $
* LANGUAGE: ISO C99
*/
/*! \file
*
* \author Ulrich Herrmann
*
* \brief Common and helpful macros
*
*/
#ifndef UTILS_H
#define UTILS_H
/*
******************************************************************************
* INCLUDES
******************************************************************************
*/
#include <string.h>
#include <stdint.h>
/*
******************************************************************************
* GLOBAL MACROS
******************************************************************************
*/
/*!
* this macro evaluates an error variable \a ERR against an error code \a EC.
* in case it is not equal it jumps to the given label \a LABEL.
*/
#define EVAL_ERR_NE_GOTO(EC, ERR, LABEL) \
if(EC != ERR) goto LABEL;
/*!
* this macro evaluates an error variable \a ERR against an error code \a EC.
* in case it is equal it jumps to the given label \a LABEL.
*/
#define EVAL_ERR_EQ_GOTO(EC, ERR, LABEL) \
if(EC == ERR) goto LABEL;
#define BITMASK_1 (0x01) /*!< Bit mask for lsb bit */
#define BITMASK_2 (0x03) /*!< Bit mask for two lsb bits */
#define BITMASK_3 (0x07) /*!< Bit mask for three lsb bits */
#define BITMASK_4 (0x0F) /*!< Bit mask for four lsb bits */
#define U16TOU8(a) ((a)&0x00FF) /*!< Cast 16-bit unsigned to 8-bit unsigned */
#define GETU16(a) \
(uint16_t)( \
(a[0] << 8) | a[1]) /*!< Cast two Big Endian 8-bits byte array to 16-bits unsigned */
#define REVERSE_BYTES(pData, nDataSize) \
unsigned char swap, *lo = pData, *hi = pData + nDataSize - 1; \
while(lo < hi) { \
swap = *lo; \
*lo++ = *hi; \
*hi-- = swap; \
}
#define ST_MEMMOVE memmove /*!< map memmove to string library code */
#define ST_MEMCPY memcpy /*!< map memcpy to string library code */
#define ST_MEMSET memset /*!< map memset to string library code */
#define ST_BYTECMP memcmp /*!< map bytecmp to string library code */
#define NO_WARNING(v) ((void)(v)) /*!< Macro to suppress compiler warning */
#ifndef NULL
#define NULL (void*)0 /*!< represents a NULL pointer */
#endif /* !NULL */
/*
******************************************************************************
* GLOBAL FUNCTION PROTOTYPES
******************************************************************************
*/
#endif /* UTILS_H */