84 lines
3.1 KiB
Text
84 lines
3.1 KiB
Text
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.hardware.bluetooth@1.0;
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import IBluetoothHciCallbacks;
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/**
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* The Host Controller Interface (HCI) is the layer defined by the Bluetooth
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* specification between the software that runs on the host and the Bluetooth
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* controller chip. This boundary is the natural choice for a Hardware
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* Abstraction Layer (HAL). Dealing only in HCI packets and events simplifies
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* the stack and abstracts away power management, initialization, and other
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* implementation-specific details related to the hardware.
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*/
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interface IBluetoothHci {
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/**
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* Initialize the underlying HCI interface.
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*
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* This method should be used to initialize any hardware interfaces
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* required to communicate with the Bluetooth hardware in the
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* device.
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*
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* The |oninitializationComplete| callback must be invoked in response
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* to this function to indicate success before any other function
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* (sendHciCommand, sendAclData, * sendScoData) is invoked on this
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* interface.
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*
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* @param callback implements IBluetoothHciCallbacks which will
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* receive callbacks when incoming HCI packets are received
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* from the controller to be sent to the host.
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*/
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@entry
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@callflow(next={"sendHciCommand", "sendAclData", "sendScoData", "close"})
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initialize(IBluetoothHciCallbacks callback);
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/**
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* Send an HCI command (as specified in the Bluetooth Specification
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* V4.2, Vol 2, Part 5, Section 5.4.1) to the Bluetooth controller.
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* Commands must be executed in order.
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*
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* @param command is the HCI command to be sent
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*/
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@callflow(next={"sendHciCommand", "sendAclData", "sendScoData", "close"})
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sendHciCommand(HciPacket command);
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/**
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* Send an HCI ACL data packet (as specified in the Bluetooth Specification
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* V4.2, Vol 2, Part 5, Section 5.4.2) to the Bluetooth controller.
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* Packets must be processed in order.
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* @param data HCI data packet to be sent
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*/
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@callflow(next={"sendHciCommand", "sendAclData", "sendScoData", "close"})
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sendAclData(HciPacket data);
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/**
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* Send an SCO data packet (as specified in the Bluetooth Specification
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* V4.2, Vol 2, Part 5, Section 5.4.3) to the Bluetooth controller.
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* Packets must be processed in order.
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* @param data HCI data packet to be sent
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*/
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@callflow(next={"sendHciCommand", "sendAclData", "sendScoData", "close"})
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sendScoData(HciPacket data);
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/**
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* Close the HCI interface
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*/
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@exit
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close();
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};
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