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Kathan Shuklab6261cb2019-11-25 22:52:12 -08001/*
2 * Copyright (C) 2019 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#pragma once
18#include <aidl/android/hardware/automotive/occupant_awareness/BnOccupantAwareness.h>
19#include <aidl/android/hardware/automotive/occupant_awareness/BnOccupantAwarenessClientCallback.h>
20#include <utils/StrongPointer.h>
21
22namespace android {
23namespace hardware {
24namespace automotive {
25namespace occupant_awareness {
26namespace V1_0 {
27namespace implementation {
28
29using ::aidl::android::hardware::automotive::occupant_awareness::BnOccupantAwareness;
30using ::aidl::android::hardware::automotive::occupant_awareness::IOccupantAwarenessClientCallback;
31using ::aidl::android::hardware::automotive::occupant_awareness::OccupantAwarenessStatus;
32using ::aidl::android::hardware::automotive::occupant_awareness::OccupantDetections;
33using ::aidl::android::hardware::automotive::occupant_awareness::Role;
34
35/**
36 * The default HAL mimics a system which has no Occupant awareness capability. The hal does not
37 * do any useful work, and returns appropriate failure code / status.
38 **/
39class OccupantAwareness : public BnOccupantAwareness {
40 public:
41 // Methods from ::android::hardware::automotive::occupant_awareness::IOccupantAwareness
42 // follow.
43 ndk::ScopedAStatus startDetection(OccupantAwarenessStatus* status) override;
44 ndk::ScopedAStatus stopDetection(OccupantAwarenessStatus* status) override;
45 ndk::ScopedAStatus getCapabilityForRole(Role occupantRole, int32_t* capabilities) override;
46 ndk::ScopedAStatus getState(Role occupantRole, int detectionCapability,
47 OccupantAwarenessStatus* status) override;
48 ndk::ScopedAStatus setCallback(
49 const std::shared_ptr<IOccupantAwarenessClientCallback>& callback) override;
50 ndk::ScopedAStatus getLatestDetection(OccupantDetections* detections) override;
51
52 private:
53 bool isValidRole(Role occupantRole);
54 bool isValidDetectionCapabilities(int detectionCapabilities);
55 bool isSingularCapability(int detectionCapability);
56
57 std::mutex mMutex;
58 std::shared_ptr<IOccupantAwarenessClientCallback> mCallback = nullptr;
59 OccupantAwarenessStatus mStatus = OccupantAwarenessStatus::NOT_INITIALIZED;
60};
61
62} // namespace implementation
63} // namespace V1_0
64} // namespace occupant_awareness
65} // namespace automotive
66} // namespace hardware
67} // namespace android