L2CAP: Add Classic Fixed Channel APIs am: d91c695bcb am: 3ad43ec285 am: 25b716ca72 (4ba1ead9) · Commits · e / os / android_packages_modules_Bluetooth

system/gd/l2cap/Android.bp

+3 −0

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		@@ -2,6 +2,9 @@ filegroup {
		name: "BluetoothL2capSources",
		srcs: [
		"l2cap_layer.cc",
		"classic_fixed_channel.cc",
		"classic_fixed_channel_manager.cc",
		"classic_fixed_channel_service.cc",
		],
		}

system/gd/l2cap/cid.h

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		@@ -29,5 +29,12 @@ constexpr Cid kLastFixedChannel = 63;
		constexpr Cid kFirstDynamicChannel = kLastFixedChannel + 1;
		constexpr Cid kLastDynamicChannel = (uint16_t)(0xffff + 1);

		constexpr Cid kClassicSignallingCid = 1;
		constexpr Cid kConnectionlessCid = 2;
		constexpr Cid kLeAttributeCid = 4;
		constexpr Cid kLeSignallingCid = 5;
		constexpr Cid kSmpCid = 6;
		constexpr Cid kSmpBrCid = 7;

		} // namespace l2cap
		} // namespace bluetooth

system/gd/l2cap/classic_fixed_channel.cc

0 → 100644

+29 −0

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		/*
		* Copyright 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.
		*/

		#include "l2cap/classic_fixed_channel.h"

		namespace bluetooth {
		namespace l2cap {
		void ClassicFixedChannel::RegisterOnCloseCallback(os::Handler* handler, OnCloseCallback callback) {}
		void ClassicFixedChannel::Acquire() {}
		void ClassicFixedChannel::Release() {}
		common::BidiQueueEnd<packet::PacketView<packet::kLittleEndian>, packet::BasePacketBuilder>*
		ClassicFixedChannel::GetQueueUpEnd() const {
		return nullptr;
		}
		} // namespace l2cap
		} // namespace bluetooth
		No newline at end of file

system/gd/l2cap/classic_fixed_channel.h

0 → 100644

+71 −0

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		/*
		* Copyright 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.
		*/
		#pragma once

		#include "common/bidi_queue.h"
		#include "common/callback.h"
		#include "os/handler.h"
		#include "packet/base_packet_builder.h"
		#include "packet/packet_view.h"

		namespace bluetooth {
		namespace l2cap {

		/**
		* L2CAP fixed channel object. When a new object is created, it must be
		* acquired through calling {@link FixedChannel#Acquire()} within X seconds.
		* Otherwise, {@link FixeChannel#Release()} will be called automatically.
		*
		*/
		class ClassicFixedChannel {
		public:
		using OnCloseCallback = common::Callback<void()>;

		/**
		* Register close callback. If close callback is registered, when a channel is closed, the channel's resource will
		* only be freed after on_close callback is invoked. Otherwise, if no on_close callback is registered, the channel's
		* resource will be freed immediately after closing.
		*
		* @param on_close The callback invoked upon channel closing.
		*/
		void RegisterOnCloseCallback(os::Handler* handler, OnCloseCallback on_close);

		/**
		* Indicate that this Fixed Channel is being used. This will prevent ACL
		* connection from being disconnected.
		*/
		void Acquire();

		/**
		* Indicate that this Fixed Channel is no longer being used. ACL connection
		* will be disconnected after X seconds if no other DynamicChannel is connected
		* or no other Fixed Channel is using this ACL connection. However a module can
		* still receive data on this channel as long as it remains open.
		*/
		void Release();

		/**
		* This method will retrieve the data channel queue to send and receive packets.
		*
		* {@see BidiQueueEnd}
		*
		* @return The upper end of a bi-directional queue.
		*/
		common::BidiQueueEnd<packet::PacketView<packet::kLittleEndian>, packet::BasePacketBuilder>* GetQueueUpEnd() const;
		};

		} // namespace l2cap
		} // namespace bluetooth

system/gd/l2cap/classic_fixed_channel_manager.cc

0 → 100644

+35 −0

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		/*
		* Copyright 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.
		*/

		#include "l2cap/classic_fixed_channel_manager.h"

		namespace bluetooth {
		namespace l2cap {

		bool ClassicFixedChannelManager::ConnectServices(common::Address device,
		OnConnectionFailureCallback on_connection_failure,
		os::Handler* handler) {
		return false;
		}

		bool ClassicFixedChannelManager::RegisterService(Cid cid, const SecurityPolicy& security_policy,
		OnRegistrationCompleteCallback on_registration_complete,
		OnConnectionOpenCallback on_connection_open, os::Handler* handler) {
		return true;
		}

		} // namespace l2cap
		} // namespace bluetooth
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