MbedCRC.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2018 ARM Limited
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #include <stddef.h>
00019 #include "drivers/TableCRC.h"
00020 #include "drivers/MbedCRC.h"
00021 
00022 namespace mbed {
00023 /** \addtogroup drivers */
00024 /** @{*/
00025 
00026 SingletonPtr<PlatformMutex>  mbed_crc_mutex;
00027 
00028 /* Default values for different types of polynomials
00029 */
00030 template<>
00031 MbedCRC<POLY_32BIT_ANSI, 32>::MbedCRC():
00032     _initial_value(~(0x0)), _final_xor(~(0x0)), _reflect_data(true), _reflect_remainder(true),
00033     _crc_table((uint32_t *)Table_CRC_32bit_ANSI)
00034 {
00035     mbed_crc_ctor();
00036 }
00037 
00038 template<>
00039 MbedCRC<POLY_32BIT_REV_ANSI, 32>::MbedCRC():
00040     _initial_value(~(0x0)), _final_xor(~(0x0)), _reflect_data(false), _reflect_remainder(false),
00041     _crc_table((uint32_t *)Table_CRC_32bit_Rev_ANSI)
00042 {
00043     mbed_crc_ctor();
00044 }
00045 
00046 template<>
00047 MbedCRC<POLY_16BIT_IBM, 16>::MbedCRC():
00048     _initial_value(0), _final_xor(0), _reflect_data(true), _reflect_remainder(true),
00049     _crc_table((uint32_t *)Table_CRC_16bit_IBM)
00050 {
00051     mbed_crc_ctor();
00052 }
00053 
00054 template<>
00055 MbedCRC<POLY_16BIT_CCITT, 16>::MbedCRC():
00056     _initial_value(~(0x0)), _final_xor(0), _reflect_data(false), _reflect_remainder(false),
00057     _crc_table((uint32_t *)Table_CRC_16bit_CCITT)
00058 {
00059     mbed_crc_ctor();
00060 }
00061 
00062 template<>
00063 MbedCRC<POLY_7BIT_SD, 7>::MbedCRC():
00064     _initial_value(0), _final_xor(0), _reflect_data(false), _reflect_remainder(false),
00065     _crc_table((uint32_t *)Table_CRC_7Bit_SD)
00066 {
00067     mbed_crc_ctor();
00068 }
00069 
00070 template<>
00071 MbedCRC<POLY_8BIT_CCITT, 8>::MbedCRC():
00072     _initial_value(0), _final_xor(0), _reflect_data(false), _reflect_remainder(false),
00073     _crc_table((uint32_t *)Table_CRC_8bit_CCITT)
00074 {
00075     mbed_crc_ctor();
00076 }
00077 
00078 /** @}*/
00079 } // namespace mbed
00080