839d3eff创建于 2024年12月25日历史提交
/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * 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.
 */

/**
 * @addtogroup HdiSensor
 * @{
 *
 * @brief Provides unified APIs for sensor services to access sensor drivers.
 *
 * A sensor service can obtain a sensor driver object or agent and then call APIs provided by this object or agent to
 * access different types of sensor devices based on the sensor IDs, thereby obtaining sensor information,
 * subscribing to or unsubscribing from sensor data, enabling or disabling a sensor,
 * setting the sensor data reporting mode, and setting sensor options such as the accuracy and measurement range.
 *
 * @since 5.1
 */

/**
 * @file ISensorInterface.idl
 *
 * @brief Declares the APIs provided by the sensor module for obtaining sensor information, subscribing to or
 * unsubscribing from sensor data, enabling or disabling a sensor, setting the sensor data reporting mode,
 * and setting sensor options such as the accuracy and measurement range.
 *
 * @since 5.1
 * @version 1.1
 */

package ohos.hdi.sensor.v2_1;

import ohos.hdi.sensor.v2_0.SensorTypes;
import ohos.hdi.sensor.v2_1.ISensorCallback;
import ohos.hdi.sensor.v2_0.ISensorInterface;

/**
 * @brief Defines the functions for performing basic operations on sensors.
 *
 * The operations include obtaining sensor information, subscribing to or unsubscribing from sensor data,
 * enabling or disabling a sensor, setting the sensor data reporting mode, and setting sensor options such as
 * the accuracy and measurement range.
 */

interface ISensorInterface extends ohos.hdi.sensor.v2_0.ISensorInterface {
    /**
     * @brief Registers the callback for reporting sensor data to the subscriber.
     *
     * @param groupId Indicates the sensor group ID.
     * The sensorId enumeration value range is 128-160, which means that the medical sensor service is subscribed.
     * It only needs to be subscribed once successfully, and there is no need to subscribe repeatedly.
     * The sensorId enumeration value range is not within 128-160, which means that the traditional sensor
     * is subscribed, and the subscription is successful once.
     * @param callbackObj Indicates the callback to register. For details, see {@link ISensorCallback}.
     * @return Returns <b>0</b> if the callback is successfully registered; returns a negative value otherwise.
     *
     * @since 5.1
     * @version 1.0
     */
    RegisterAsync([in] int groupId, [in] ISensorCallback callbackObj);

    /**
     * @brief Deregisters the callback for reporting sensor data.
     *
     * @param groupId Indicates the sensor group ID.
     * The sensorId enumeration value range is 128-160, which means that the medical sensor service is subscribed.
     * It only needs to cancel the subscription once successfully, and there is no need to
     * cancel the subscription repeatedly. The sensorId enumeration value range is not within 128-160,
     * which means that the traditional sensor is subscribed. You can cancel the subscription once successfully.
     * @param callbackObj Indicates the callback to deregister. For details, see {@link ISensorCallback}.
     * @return Returns <b>0</b> if the callback is successfully deregistered; returns a negative value otherwise.
     *
     * @since 5.1
     * @version 1.0
     */
    UnregisterAsync([in] int groupId, [in] ISensorCallback callbackObj);
}