xref: /aosp_15_r20/hardware/interfaces/bluetooth/1.1/IBluetoothHci.hal (revision 4d7e907c777eeecc4c5bd7cf640a754fac206ff7)

/*
 * Copyright (C) 2019 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.
 */

package [email protected];

import @1.0::HciPacket;
import @1.0::IBluetoothHci;
import IBluetoothHciCallbacks;

/**
 * The Host Controller Interface (HCI) is the layer defined by the Bluetooth
 * specification between the software that runs on the host and the Bluetooth
 * controller chip. This boundary is the natural choice for a Hardware
 * Abstraction Layer (HAL). Dealing only in HCI packets and events simplifies
 * the stack and abstracts away power management, initialization, and other
 * implementation-specific details related to the hardware.
 */
interface IBluetoothHci extends @1.0::IBluetoothHci {
    /**
     * Same as @1.0, but uses 1.1 Callbacks version
     */
    initialize_1_1(@1.1::IBluetoothHciCallbacks callback);

    /**
     * Send an ISO data packet (as specified in the Bluetooth Core
     * Specification v5.2) to the Bluetooth controller.
     * Packets must be processed in order.
     * @param data HCI data packet to be sent
     */
    sendIsoData(HciPacket data);
};