1 // Copyright 2020 The Pigweed Authors
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
7 // https://www.apache.org/licenses/LICENSE-2.0
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
18 #include "pw_checksum/crc16_ccitt.h"
19 #include "pw_kvs/checksum.h"
23 class ChecksumCrc16 final : public ChecksumAlgorithm {
26 : ChecksumAlgorithm(std::as_bytes(std::span<uint16_t>(&crc_, 1))) {}
28 void Reset() override { crc_ = checksum::Crc16Ccitt::kInitialValue; }
30 void Update(std::span<const std::byte> data) override {
31 crc_ = checksum::Crc16Ccitt::Calculate(data, crc_);
35 uint16_t crc_ = checksum::Crc16Ccitt::kInitialValue;
38 } // namespace pw::kvs