1 // 2 // Copyright 2017 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 <hidl/HidlSupport.h> 20 21 #include "async_fd_watcher.h" 22 #include "hci_internals.h" 23 #include "hci_protocol.h" 24 25 namespace android { 26 namespace hardware { 27 namespace bluetooth { 28 namespace hci { 29 30 class H4Protocol : public HciProtocol { 31 public: H4Protocol(int fd,PacketReadCallback event_cb,PacketReadCallback acl_cb,PacketReadCallback sco_cb)32 H4Protocol(int fd, PacketReadCallback event_cb, PacketReadCallback acl_cb, 33 PacketReadCallback sco_cb) 34 : uart_fd_(fd), 35 event_cb_(event_cb), 36 acl_cb_(acl_cb), 37 sco_cb_(sco_cb), 38 hci_packetizer_([this]() { OnPacketReady(); }) {} 39 40 size_t Send(uint8_t type, const uint8_t* data, size_t length); 41 42 void OnPacketReady(); 43 44 void OnDataReady(int fd); 45 46 private: 47 int uart_fd_; 48 49 PacketReadCallback event_cb_; 50 PacketReadCallback acl_cb_; 51 PacketReadCallback sco_cb_; 52 53 HciPacketType hci_packet_type_{HCI_PACKET_TYPE_UNKNOWN}; 54 hci::HciPacketizer hci_packetizer_; 55 }; 56 57 } // namespace hci 58 } // namespace bluetooth 59 } // namespace hardware 60 } // namespace android 61