xref: /packages/services/Car/obd2-lib/src/com/android/car/obd2/commands/FuelTrimCommand.java

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.car.obd2.commands;

import com.android.car.obd2.IntegerArrayStream;
import com.android.car.obd2.Obd2Command;
import java.util.Optional;

public abstract class FuelTrimCommand implements Obd2Command.OutputSemanticHandler<Float> {
    @Override
    public Optional<Float> consume(IntegerArrayStream data) {
        return data.hasAtLeast(
                1,
                theData -> Optional.of(3 * theData.consume() / 1.28f - 100),
                theData -> Optional.<Float>empty());
    }

    public static class Bank1ShortTermFuelTrimCommand extends FuelTrimCommand {
        @Override
        public int getPid() {
            return 0x06;
        }
    }

    public static class Bank1LongTermFuelTrimCommand extends FuelTrimCommand {
        @Override
        public int getPid() {
            return 0x07;
        }
    }

    public static class Bank2ShortTermFuelTrimCommand extends FuelTrimCommand {
        @Override
        public int getPid() {
            return 0x08;
        }
    }

    public static class Bank2LongTermFuelTrimCommand extends FuelTrimCommand {
        @Override
        public int getPid() {
            return 0x09;
        }
    }
}