| /* |
| * 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 "hci/address.h" |
| #include "l2cap/cid.h" |
| #include "l2cap/classic/dynamic_channel.h" |
| #include "l2cap/internal/channel_impl.h" |
| #include "l2cap/l2cap_packets.h" |
| #include "l2cap/mtu.h" |
| #include "l2cap/psm.h" |
| #include "os/handler.h" |
| #include "os/log.h" |
| |
| namespace bluetooth { |
| namespace l2cap { |
| namespace classic { |
| namespace internal { |
| |
| class Link; |
| |
| class DynamicChannelImpl : public l2cap::internal::ChannelImpl { |
| public: |
| DynamicChannelImpl(Psm psm, Cid cid, Cid remote_cid, Link* link, os::Handler* l2cap_handler); |
| |
| virtual ~DynamicChannelImpl() = default; |
| |
| hci::Address GetDevice() const; |
| |
| virtual void RegisterOnCloseCallback(os::Handler* user_handler, DynamicChannel::OnCloseCallback on_close_callback); |
| |
| virtual void Close(); |
| virtual void OnClosed(hci::ErrorCode status); |
| virtual std::string ToString(); |
| |
| common::BidiQueueEnd<packet::BasePacketBuilder, packet::PacketView<packet::kLittleEndian>>* GetQueueUpEnd() { |
| return channel_queue_.GetUpEnd(); |
| } |
| |
| common::BidiQueueEnd<packet::PacketView<packet::kLittleEndian>, packet::BasePacketBuilder>* GetQueueDownEnd() { |
| return channel_queue_.GetDownEnd(); |
| } |
| |
| virtual Cid GetCid() const { |
| return cid_; |
| } |
| |
| virtual Cid GetRemoteCid() const { |
| return remote_cid_; |
| } |
| |
| virtual Psm GetPsm() const { |
| return psm_; |
| } |
| |
| enum class ConfigurationStatus { NOT_CONFIGURED, CONFIGURED }; |
| |
| virtual ConfigurationStatus GetOutgoingConfigurationStatus() const; |
| virtual void SetOutgoingConfigurationStatus(ConfigurationStatus status); |
| |
| virtual ConfigurationStatus GetIncomingConfigurationStatus() const; |
| virtual void SetIncomingConfigurationStatus(ConfigurationStatus status); |
| |
| virtual Mtu GetIncomingMtu() const; |
| virtual void SetIncomingMtu(Mtu mtu); |
| |
| virtual RetransmissionAndFlowControlModeOption GetChannelMode() const; |
| virtual void SetChannelMode(RetransmissionAndFlowControlModeOption mode); |
| |
| virtual FcsType GetFcsType() const; |
| virtual void SetFcsType(FcsType fcs_type); |
| |
| // TODO(cmanton) Do something a little bit better than this |
| bool local_initiated_{false}; |
| |
| private: |
| const Psm psm_; |
| const Cid cid_; |
| const Cid remote_cid_; |
| Link* link_; |
| os::Handler* l2cap_handler_; |
| const hci::Address device_; |
| |
| // User supported states |
| os::Handler* user_handler_ = nullptr; |
| DynamicChannel::OnCloseCallback on_close_callback_{}; |
| |
| // Internal states |
| bool closed_ = false; |
| hci::ErrorCode close_reason_ = hci::ErrorCode::SUCCESS; |
| static constexpr size_t kChannelQueueSize = 10; |
| common::BidiQueue<packet::PacketView<packet::kLittleEndian>, packet::BasePacketBuilder> channel_queue_{ |
| kChannelQueueSize}; |
| ConfigurationStatus outgoing_configuration_status_ = ConfigurationStatus::NOT_CONFIGURED; |
| ConfigurationStatus incoming_configuration_status_ = ConfigurationStatus::NOT_CONFIGURED; |
| |
| Mtu incoming_mtu_ = kDefaultClassicMtu; |
| RetransmissionAndFlowControlModeOption mode_ = RetransmissionAndFlowControlModeOption::L2CAP_BASIC; |
| // TODO: Add all RetransmissionAndFlowControlConfigurationOptions |
| FcsType fcs_type_ = FcsType::DEFAULT; |
| |
| DISALLOW_COPY_AND_ASSIGN(DynamicChannelImpl); |
| }; |
| |
| } // namespace internal |
| } // namespace classic |
| } // namespace l2cap |
| } // namespace bluetooth |