1 /* 2 * Copyright (C) 2021 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 package com.android.car.hal; 18 19 import android.car.VehicleAreaType; 20 import android.car.hardware.CarPropertyConfig; 21 import android.hardware.automotive.vehicle.VehicleArea; 22 import android.hardware.automotive.vehicle.VehiclePropertyType; 23 24 import java.util.ArrayList; 25 26 /** 27 * HalPropConfig represents a vehicle property config. 28 */ 29 public abstract class HalPropConfig { 30 31 private static final int[] DEFAULT_AREA_IDS = {VehicleAreaType.VEHICLE_AREA_TYPE_GLOBAL}; 32 33 /** 34 * Get the property ID. 35 */ getPropId()36 public abstract int getPropId(); 37 38 /** 39 * Get the access mode. 40 */ getAccess()41 public abstract int getAccess(); 42 43 /** 44 * Get the change mode. 45 */ getChangeMode()46 public abstract int getChangeMode(); 47 48 /** 49 * Get the area configs. 50 */ getAreaConfigs()51 public abstract HalAreaConfig[] getAreaConfigs(); 52 53 /** 54 * Get the config array. 55 */ getConfigArray()56 public abstract int[] getConfigArray(); 57 58 /** 59 * Get the config string. 60 */ getConfigString()61 public abstract String getConfigString(); 62 63 /** 64 * Get the min sample rate. 65 */ getMinSampleRate()66 public abstract float getMinSampleRate(); 67 68 /** 69 * Get the max sample rate. 70 */ getMaxSampleRate()71 public abstract float getMaxSampleRate(); 72 73 /** 74 * Converts to AIDL or HIDL VehiclePropConfig. 75 */ toVehiclePropConfig()76 public abstract Object toVehiclePropConfig(); 77 78 /** 79 * Converts {@link HalPropConfig} to {@link CarPropertyConfig}. 80 * 81 * @param mgrPropertyId The Property ID used by Car Property Manager, different from the 82 * property ID used by VHAL. 83 */ toCarPropertyConfig(int mgrPropertyId)84 public CarPropertyConfig<?> toCarPropertyConfig(int mgrPropertyId) { 85 int propId = getPropId(); 86 int areaType = getVehicleAreaType(propId & VehicleArea.MASK); 87 88 Class<?> clazz = CarPropertyUtils.getJavaClass(propId & VehiclePropertyType.MASK); 89 float maxSampleRate = 0f; 90 float minSampleRate = 0f; 91 if (getChangeMode() != CarPropertyConfig.VEHICLE_PROPERTY_CHANGE_MODE_STATIC) { 92 maxSampleRate = getMaxSampleRate(); 93 minSampleRate = getMinSampleRate(); 94 } 95 96 int[] configIntArray = getConfigArray(); 97 ArrayList<Integer> configArray = new ArrayList<>(configIntArray.length); 98 for (int i = 0; i < configIntArray.length; i++) { 99 configArray.add(configIntArray[i]); 100 } 101 HalAreaConfig[] areaConfigs = getAreaConfigs(); 102 if (areaConfigs.length == 0) { 103 return CarPropertyConfig 104 .newBuilder(clazz, mgrPropertyId, areaType, /* capacity= */ 1) 105 .addAreas(DEFAULT_AREA_IDS) 106 .setAccess(getAccess()) 107 .setChangeMode(getChangeMode()) 108 .setConfigArray(configArray) 109 .setConfigString(getConfigString()) 110 .setMaxSampleRate(maxSampleRate) 111 .setMinSampleRate(minSampleRate) 112 .build(); 113 } else { 114 CarPropertyConfig.Builder builder = CarPropertyConfig 115 .newBuilder(clazz, mgrPropertyId, areaType, /* capacity= */ areaConfigs.length) 116 .setAccess(getAccess()) 117 .setChangeMode(getChangeMode()) 118 .setConfigArray(configArray) 119 .setConfigString(getConfigString()) 120 .setMaxSampleRate(maxSampleRate) 121 .setMinSampleRate(minSampleRate); 122 123 for (HalAreaConfig area : areaConfigs) { 124 int areaId = area.getAreaId(); 125 if (classMatched(Integer.class, clazz)) { 126 builder.addAreaConfig(areaId, area.getMinInt32Value(), area.getMaxInt32Value()); 127 } else if (classMatched(Float.class, clazz)) { 128 builder.addAreaConfig(areaId, area.getMinFloatValue(), area.getMaxFloatValue()); 129 } else if (classMatched(Long.class, clazz)) { 130 builder.addAreaConfig(areaId, area.getMinInt64Value(), area.getMaxInt64Value()); 131 } else if (classMatched(Boolean.class, clazz) 132 || classMatched(Float[].class, clazz) 133 || classMatched(Integer[].class, clazz) 134 || classMatched(Long[].class, clazz) 135 || classMatched(String.class, clazz) 136 || classMatched(byte[].class, clazz) 137 || classMatched(Object[].class, clazz)) { 138 // These property types do not have min/max values 139 builder.addArea(areaId); 140 } else { 141 throw new IllegalArgumentException("Unexpected type: " + clazz); 142 } 143 } 144 return builder.build(); 145 } 146 } 147 getVehicleAreaType(int halArea)148 private static @VehicleAreaType.VehicleAreaTypeValue int getVehicleAreaType(int halArea) { 149 switch (halArea) { 150 case VehicleArea.GLOBAL: 151 return VehicleAreaType.VEHICLE_AREA_TYPE_GLOBAL; 152 case VehicleArea.SEAT: 153 return VehicleAreaType.VEHICLE_AREA_TYPE_SEAT; 154 case VehicleArea.DOOR: 155 return VehicleAreaType.VEHICLE_AREA_TYPE_DOOR; 156 case VehicleArea.WINDOW: 157 return VehicleAreaType.VEHICLE_AREA_TYPE_WINDOW; 158 case VehicleArea.MIRROR: 159 return VehicleAreaType.VEHICLE_AREA_TYPE_MIRROR; 160 case VehicleArea.WHEEL: 161 return VehicleAreaType.VEHICLE_AREA_TYPE_WHEEL; 162 default: 163 throw new RuntimeException("Unsupported area type " + halArea); 164 } 165 } 166 classMatched(Class<?> class1, Class<?> class2)167 private static boolean classMatched(Class<?> class1, Class<?> class2) { 168 return class1 == class2 || class1.getComponentType() == class2; 169 } 170 171 } 172