| Ji Soo Shin | 9035e7c | 2022-01-05 11:58:21 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2020 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <libprotocan/Checksum.h> |
| 18 | |
| 19 | namespace android::hardware::automotive::protocan { |
| 20 | |
| 21 | Checksum::Checksum(Signal signal, formula f) : mSignal(signal), mFormula(f) {} |
| 22 | |
| 23 | void Checksum::update(can::V1_0::CanMessage& msg) const { |
| 24 | mSignal.set(msg, 0); |
| 25 | mSignal.set(msg, mFormula(msg) % (mSignal.maxValue + 1)); |
| 26 | } |
| 27 | |
| 28 | } // namespace android::hardware::automotive::protocan |