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      1 /*
      2  * Copyright (C) 2015 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.hal;
     17 
     18 import android.car.CarInfoManager;
     19 import android.hardware.automotive.vehicle.V2_0.VehiclePropConfig;
     20 import android.hardware.automotive.vehicle.V2_0.VehiclePropValue;
     21 import android.hardware.automotive.vehicle.V2_0.VehicleProperty;
     22 import android.os.Bundle;
     23 import android.util.Log;
     24 
     25 import com.android.car.CarLog;
     26 
     27 import java.io.PrintWriter;
     28 import java.util.Collection;
     29 import java.util.LinkedList;
     30 import java.util.List;
     31 
     32 public class InfoHalService extends HalServiceBase {
     33 
     34     private final VehicleHal mHal;
     35     private Bundle mBasicInfo = new Bundle();
     36 
     37     public InfoHalService(VehicleHal hal) {
     38         mHal = hal;
     39     }
     40 
     41     @Override
     42     public void init() {
     43         //nothing to do
     44     }
     45 
     46     @Override
     47     public synchronized void release() {
     48         mBasicInfo = new Bundle();
     49     }
     50 
     51     @Override
     52     public synchronized Collection<VehiclePropConfig> takeSupportedProperties(
     53             Collection<VehiclePropConfig> allProperties) {
     54         List<VehiclePropConfig> supported = new LinkedList<>();
     55         for (VehiclePropConfig p: allProperties) {
     56             switch (p.prop) {
     57                 case VehicleProperty.INFO_MAKE:
     58                     readPropertyToBundle(p.prop, CarInfoManager.BASIC_INFO_KEY_MANUFACTURER);
     59                     break;
     60                 case VehicleProperty.INFO_MODEL:
     61                     readPropertyToBundle(p.prop, CarInfoManager.BASIC_INFO_KEY_MODEL);
     62                     break;
     63                 case VehicleProperty.INFO_MODEL_YEAR:
     64                     readPropertyToBundle(p.prop, CarInfoManager.BASIC_INFO_KEY_MODEL_YEAR);
     65                     break;
     66                 default: // not supported
     67                     break;
     68             }
     69         }
     70         return supported;
     71     }
     72 
     73     private void readPropertyToBundle(int prop, String key) {
     74         String value = "";
     75         try {
     76             value = mHal.get(String.class, prop);
     77         } catch (PropertyTimeoutException e) {
     78             Log.e(CarLog.TAG_INFO, "Unable to read property", e);
     79         }
     80         mBasicInfo.putString(key, value);
     81     }
     82 
     83     @Override
     84     public void handleHalEvents(List<VehiclePropValue> values) {
     85         for (VehiclePropValue v : values) {
     86             logUnexpectedEvent(v.prop);
     87         }
     88     }
     89 
     90     @Override
     91     public void dump(PrintWriter writer) {
     92         writer.println("*InfoHal*");
     93         writer.println("**BasicInfo:" + mBasicInfo);
     94     }
     95 
     96     public synchronized Bundle getBasicInfo() {
     97         return mBasicInfo;
     98     }
     99 
    100     private void logUnexpectedEvent(int property) {
    101        Log.w(CarLog.TAG_INFO, "unexpected HAL event for property 0x" +
    102                Integer.toHexString(property));
    103     }
    104 }
    105