1 /* 2 * Copyright (C) 2016 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 #ifndef android_hardware_automotive_vehicle_V2_0_impl_EmulatedVehicleHal_H_ 18 #define android_hardware_automotive_vehicle_V2_0_impl_EmulatedVehicleHal_H_ 19 20 #include <map> 21 #include <memory> 22 #include <sys/socket.h> 23 #include <thread> 24 #include <unordered_set> 25 26 #include <utils/SystemClock.h> 27 28 #include <vhal_v2_0/RecurrentTimer.h> 29 #include <vhal_v2_0/VehicleHal.h> 30 #include "vhal_v2_0/VehiclePropertyStore.h" 31 32 #include "DefaultConfig.h" 33 #include "FakeValueGenerator.h" 34 35 #include "VehicleEmulator.h" 36 37 namespace android { 38 namespace hardware { 39 namespace automotive { 40 namespace vehicle { 41 namespace V2_0 { 42 43 namespace impl { 44 45 /** Implementation of VehicleHal that connected to emulator instead of real vehicle network. */ 46 class EmulatedVehicleHal : public EmulatedVehicleHalIface { 47 public: 48 EmulatedVehicleHal(VehiclePropertyStore* propStore); 49 ~EmulatedVehicleHal() = default; 50 51 // Methods from VehicleHal 52 void onCreate() override; 53 std::vector<VehiclePropConfig> listProperties() override; 54 VehiclePropValuePtr get(const VehiclePropValue& requestedPropValue, 55 StatusCode* outStatus) override; 56 StatusCode set(const VehiclePropValue& propValue) override; 57 StatusCode subscribe(int32_t property, float sampleRate) override; 58 StatusCode unsubscribe(int32_t property) override; 59 60 // Methods from EmulatedVehicleHalIface 61 bool setPropertyFromVehicle(const VehiclePropValue& propValue) override; 62 std::vector<VehiclePropValue> getAllProperties() const override; 63 64 private: hertzToNanoseconds(float hz)65 constexpr std::chrono::nanoseconds hertzToNanoseconds(float hz) const { 66 return std::chrono::nanoseconds(static_cast<int64_t>(1000000000L / hz)); 67 } 68 69 StatusCode handleGenerateFakeDataRequest(const VehiclePropValue& request); 70 void onFakeValueGenerated(const VehiclePropValue& value); 71 VehiclePropValuePtr createHwInputKeyProp(VehicleHwKeyInputAction action, int32_t keyCode, 72 int32_t targetDisplay); 73 74 void onContinuousPropertyTimer(const std::vector<int32_t>& properties); 75 bool isContinuousProperty(int32_t propId) const; 76 void initStaticConfig(); 77 void initObd2LiveFrame(const VehiclePropConfig& propConfig); 78 void initObd2FreezeFrame(const VehiclePropConfig& propConfig); 79 StatusCode fillObd2FreezeFrame(const VehiclePropValue& requestedPropValue, 80 VehiclePropValue* outValue); 81 StatusCode fillObd2DtcInfo(VehiclePropValue* outValue); 82 StatusCode clearObd2FreezeFrames(const VehiclePropValue& propValue); 83 84 /* Private members */ 85 VehiclePropertyStore* mPropStore; 86 std::unordered_set<int32_t> mHvacPowerProps; 87 RecurrentTimer mRecurrentTimer; 88 std::unique_ptr<FakeValueGenerator> mLinearFakeValueGenerator; 89 std::unique_ptr<FakeValueGenerator> mJsonFakeValueGenerator; 90 }; 91 92 } // impl 93 94 } // namespace V2_0 95 } // namespace vehicle 96 } // namespace automotive 97 } // namespace hardware 98 } // namespace android 99 100 101 #endif // android_hardware_automotive_vehicle_V2_0_impl_EmulatedVehicleHal_H_ 102