1/*
2 * Copyright (C) 2014, 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/license/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
17package android.hardware.location;
18
19import android.hardware.location.IActivityRecognitionHardwareSink;
20
21/**
22 * Activity Recognition Hardware provider interface.
23 * This interface can be used to implement hardware based activity recognition.
24 *
25 * @hide
26 */
27interface IActivityRecognitionHardware {
28    /**
29     * Gets an array of supported activities by hardware.
30     */
31    String[] getSupportedActivities();
32
33    /**
34     * Returns true if the given activity is supported, false otherwise.
35     */
36    boolean isActivitySupported(in String activityType);
37
38    /**
39     * Registers a sink with Hardware Activity-Recognition.
40     */
41    boolean registerSink(in IActivityRecognitionHardwareSink sink);
42
43    /**
44     * Unregisters a sink with Hardware Activity-Recognition.
45     */
46    boolean unregisterSink(in IActivityRecognitionHardwareSink sink);
47
48    /**
49     * Enables tracking of a given activity/event type, if the activity is supported.
50     */
51    boolean enableActivityEvent(in String activityType, int eventType, long reportLatencyNs);
52
53    /**
54     * Disables tracking of a given activity/eventy type.
55     */
56    boolean disableActivityEvent(in String activityType, int eventType);
57
58    /**
59     * Requests hardware for all the activity events detected up to the given point in time.
60     */
61    boolean flush();
62}