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      1 /*
      2  * Copyright (C) 2018 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 package com.android.car.vehiclehal.test;
     17 
     18 import android.hardware.automotive.vehicle.V2_0.VehicleArea;
     19 import android.hardware.automotive.vehicle.V2_0.VehiclePropertyGroup;
     20 import android.hardware.automotive.vehicle.V2_0.VehiclePropertyType;
     21 import android.os.RemoteException;
     22 
     23 interface VhalEventGenerator {
     24 
     25      /**
     26       * The following property controls VHAL to start/stop linear fake data generation process.
     27       * It must match kGenerateFakeDataControllingProperty that is defined in default VHAL
     28       * implementation:
     29       *
     30       *    hardware/interfaces/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
     31       */
     32     int GENERATE_FAKE_DATA_CONTROLLING_PROPERTY = 0x0666
     33             | VehiclePropertyGroup.VENDOR
     34             | VehicleArea.GLOBAL
     35             | VehiclePropertyType.MIXED;
     36 
     37     // Command bits sent via GENERATE_FAKE_DATA_CONTROLLING_PROPERTY to control fake data generation
     38     int CMD_START_LINEAR = 0; // Start linear fake data generation
     39     int CMD_STOP_LINEAR = 1; // Stop linear fake data generation
     40     int CMD_START_JSON = 2; // Start JSON-based fake data generation
     41     int CMD_STOP_JSON = 3; // Stop JSON-based fake data generation
     42 
     43     /**
     44      * Asynchronous call to tell VHAL to start fake event generation. VHAL will start generating
     45      * data after this call
     46      *
     47      * @throws RemoteException
     48      */
     49     void start() throws RemoteException;
     50 
     51     /**
     52      * Synchronous call to tell VHAL to stop fake event generation. VHAL should always stopped
     53      * generating data after this call.
     54      *
     55      * @throws RemoteException
     56      */
     57     void stop() throws RemoteException;
     58 }
     59