1 /*
2  * Copyright (C) 2017 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.obd2.commands;
18 
19 import com.android.car.obd2.IntegerArrayStream;
20 import com.android.car.obd2.Obd2Command;
21 
22 import java.util.Optional;
23 
24 public abstract class FuelTrimCommand implements Obd2Command.OutputSemanticHandler<Float> {
25     @Override
consume(IntegerArrayStream data)26     public Optional<Float> consume(IntegerArrayStream data) {
27         return data.hasAtLeast(
28                 1,
29                 theData -> Optional.of(3 * theData.consume() / 1.28f - 100),
30                 theData -> Optional.<Float>empty());
31     }
32 
33     public static class Bank1ShortTermFuelTrimCommand extends FuelTrimCommand {
34         @Override
getPid()35         public int getPid() {
36             return 0x06;
37         }
38     }
39 
40     public static class Bank1LongTermFuelTrimCommand extends FuelTrimCommand {
41         @Override
getPid()42         public int getPid() {
43             return 0x07;
44         }
45     }
46 
47     public static class Bank2ShortTermFuelTrimCommand extends FuelTrimCommand {
48         @Override
getPid()49         public int getPid() {
50             return 0x08;
51         }
52     }
53 
54     public static class Bank2LongTermFuelTrimCommand extends FuelTrimCommand {
55         @Override
getPid()56         public int getPid() {
57             return 0x09;
58         }
59     }
60 }
61