diff options
Diffstat (limited to 'service/system/rom_access_library/library/rom/src/ss_sm_checksum.cpp')
-rwxr-xr-x | service/system/rom_access_library/library/rom/src/ss_sm_checksum.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/service/system/rom_access_library/library/rom/src/ss_sm_checksum.cpp b/service/system/rom_access_library/library/rom/src/ss_sm_checksum.cpp new file mode 100755 index 0000000..52cb114 --- /dev/null +++ b/service/system/rom_access_library/library/rom/src/ss_sm_checksum.cpp @@ -0,0 +1,37 @@ +/* + * @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION. + * + * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + * + * 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. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/////////////////////////////////////////////////////////////////////////////// +/// \ingroup tag_SystemManager +/// \brief This file provides for checksum calculation. +/// +/////////////////////////////////////////////////////////////////////////////// +#include "ss_sm_checksum.h" + +CSMChecksum::CSMChecksum() {} +CSMChecksum::~CSMChecksum() {} +UI_32 CSMChecksum::cal_checksum(const void* p_buf, size_t bufSize) { + size_t num; + UI_32 sum = 0; + const UI_32 *p_calcBuf = reinterpret_cast<const UI_32 *>(p_buf); + num = bufSize / sizeof(UI_32); + + for (size_t i = 0; i < num; i++) { + sum += p_calcBuf[i]; + } + return sum; +} + |