1 /* 2 * Copyright 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include "common/bidi_queue.h" 20 #include "hci/address.h" 21 #include "l2cap/cid.h" 22 #include "l2cap/dynamic_channel.h" 23 #include "l2cap/internal/channel_impl.h" 24 #include "l2cap/internal/ilink.h" 25 #include "l2cap/l2cap_packets.h" 26 #include "l2cap/mtu.h" 27 #include "l2cap/psm.h" 28 #include "os/handler.h" 29 #include "os/log.h" 30 31 namespace bluetooth { 32 namespace l2cap { 33 namespace internal { 34 35 class DynamicChannelImpl : public l2cap::internal::ChannelImpl { 36 public: 37 DynamicChannelImpl(Psm psm, Cid cid, Cid remote_cid, l2cap::internal::ILink* link, os::Handler* l2cap_handler); 38 39 virtual ~DynamicChannelImpl() = default; 40 41 hci::AddressWithType GetDevice() const; 42 43 virtual void RegisterOnCloseCallback(DynamicChannel::OnCloseCallback on_close_callback); 44 45 virtual void Close(); 46 virtual void OnClosed(hci::ErrorCode status); 47 virtual std::string ToString(); 48 GetQueueUpEnd()49 common::BidiQueueEnd<packet::BasePacketBuilder, packet::PacketView<packet::kLittleEndian>>* GetQueueUpEnd() { 50 return channel_queue_.GetUpEnd(); 51 } 52 GetQueueDownEnd()53 common::BidiQueueEnd<packet::PacketView<packet::kLittleEndian>, packet::BasePacketBuilder>* GetQueueDownEnd() { 54 return channel_queue_.GetDownEnd(); 55 } 56 GetCid()57 virtual Cid GetCid() const { 58 return cid_; 59 } 60 GetRemoteCid()61 virtual Cid GetRemoteCid() const { 62 return remote_cid_; 63 } 64 GetPsm()65 virtual Psm GetPsm() const { 66 return psm_; 67 } 68 SetChannelTxPriority(bool high_priority)69 virtual void SetChannelTxPriority(bool high_priority) { 70 link_->SetChannelTxPriority(cid_, high_priority); 71 } 72 73 // TODO(cmanton) Do something a little bit better than this 74 bool local_initiated_{false}; 75 76 private: 77 const Psm psm_; 78 const Cid cid_; 79 const Cid remote_cid_; 80 l2cap::internal::ILink* link_; 81 os::Handler* l2cap_handler_; 82 const hci::AddressWithType device_; 83 84 // User supported states 85 DynamicChannel::OnCloseCallback on_close_callback_{}; 86 87 // Internal states 88 bool closed_ = false; 89 hci::ErrorCode close_reason_ = hci::ErrorCode::SUCCESS; 90 static constexpr size_t kChannelQueueSize = 5; 91 common::BidiQueue<packet::PacketView<packet::kLittleEndian>, packet::BasePacketBuilder> channel_queue_{ 92 kChannelQueueSize}; 93 94 DISALLOW_COPY_AND_ASSIGN(DynamicChannelImpl); 95 }; 96 97 } // namespace internal 98 } // namespace l2cap 99 } // namespace bluetooth 100