sensorhal/activity.h

/*
 * Copyright (C) 2015 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.
 */

#ifndef ACTIVITY_H_

#define ACTIVITY_H_

#include <hardware/activity_recognition.h>
#include <media/stagefright/foundation/ABase.h>
#include <utils/KeyedVector.h>

#include "hubconnection.h"

#define DEBUG_ACTIVITY_RECOGNITION  0

struct ActivityContext {
    activity_recognition_device_t device;

    explicit ActivityContext(const struct hw_module_t *module);

    void onActivityEvent(
            uint64_t when_us, bool is_flush, float x, float y, float z);

    bool getHubAlive();

private:
    android::Mutex mLock;

    android::sp<android::HubConnection> mHubConnection;

    bool mHubAlive;

    const activity_recognition_callback_procs_t *mCallback;

    android::KeyedVector<uint64_t, int64_t> mMaxBatchReportLatencyNs;

    int mPrevActivity;

    bool mInitExitDone;

    ~ActivityContext();

    int close();

    void registerActivityCallback(
            const activity_recognition_callback_procs_t *callback);

    bool isEnabled(uint32_t activity_handle, uint32_t event_type) const;

    int enableActivityEvent(
            uint32_t activity_handle,
            uint32_t event_type,
            int64_t max_batch_report_latency_ns);

    int disableActivityEvent(uint32_t activity_handle, uint32_t event_type);

    int flush();

    int64_t calculateReportLatencyNs();

    static int CloseWrapper(struct hw_device_t *dev);

    static void RegisterActivityCallbackWrapper(
            const struct activity_recognition_device *dev,
            const activity_recognition_callback_procs_t *callback);

    static int EnableActivityEventWrapper(
            const struct activity_recognition_device *dev,
            uint32_t activity_handle,
            uint32_t event_type,
            int64_t max_batch_report_latency_ns);

    static int DisableActivityEventWrapper(
            const struct activity_recognition_device *dev,
            uint32_t activity_handle,
            uint32_t event_type);

    static int FlushWrapper(const struct activity_recognition_device *dev);

    static void HubCallbackWrapper(
            void *me, uint64_t time_ms, bool is_flush, float x, float y, float z);

    DISALLOW_EVIL_CONSTRUCTORS(ActivityContext);
};

#endif  // ACTIVITY_H_