/*
 * Copyright (c) 2022 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 HdiHci
 * @{
 *
 * @brief Provides unified APIs for the HCI service.
 *
 * The Host can use the interface provided by the module to initialize the HCI(Host Controller Interface),
 * and exchange data with the Controller through the service.
 *
 * @since 3.2
 */

/**
 * @file IHciInterface.idl
 *
 * @brief Defines the interfaces to initialize the HCI, send data to the Controller,
 * and disable the HCI interface.
 *
 * @since 3.2
 * @version 1.0
 */

package ohos.hdi.bluetooth.hci.v1_0;

import ohos.hdi.bluetooth.hci.v1_0.IHciCallback;
import ohos.hdi.bluetooth.hci.v1_0.HciTypes;

/**
 * @brief Defines the interfaces to initialize the HCI, send data to the Controller,
 * and disable the HCI interface.
 *
 * @since 3.2
 */
interface IHciInterface {
    /**
     * @brief Initialize the HCI and register the callback function.
     *
     * @param callbackObj Indicates the callback function. For details, see {@link IHciCallback}.
     * @return Returns <b>0</b> if the HCI is initialized successfully; returns a negative value otherwise.
     *
     * @since 3.2
     * @version 1.0
     */
    Init([in] IHciCallback callbackObj);

    /**
     * @brief Sends data packets to the Controller.
     *
     * @param type Indicates the HCI packet type. For details, see {@link BtType}.
     * @param data Indicates the HCI data packets sent to the Controller.
     * @return Returns <b>0</b> if the HCI data packets is sent successfully; returns a negative value otherwise.
     *
     * @since 3.2
     * @version 1.0
     */
    SendHciPacket([in] enum BtType type, [in] unsigned char[] data);

    /**
     * @brief Disable the HCI interface.
     *
     * @return Returns <b>0</b> if the HCI is disabled successfully; returns a negative value otherwise.
     *
     * @since 3.2
     * @version 1.0
     */
    Close();
}