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 "bt_vendor_lib.h" 23 #include "hci_internals.h" 24 #include "hci_protocol.h" 25 26 namespace android { 27 namespace hardware { 28 namespace bluetooth { 29 namespace hci { 30 31 class H4Protocol : public HciProtocol { 32 public: 33 H4Protocol(int fd, PacketReadCallback event_cb, PacketReadCallback acl_cb, 34 PacketReadCallback sco_cb) 35 : uart_fd_(fd), 36 event_cb_(event_cb), 37 acl_cb_(acl_cb), 38 sco_cb_(sco_cb), 39 hci_packetizer_([this]() { OnPacketReady(); }) {} 40 41 size_t Send(uint8_t type, const uint8_t* data, size_t length); 42 43 void OnPacketReady(); 44 45 void OnDataReady(int fd); 46 47 private: 48 int uart_fd_; 49 50 PacketReadCallback event_cb_; 51 PacketReadCallback acl_cb_; 52 PacketReadCallback sco_cb_; 53 54 HciPacketType hci_packet_type_{HCI_PACKET_TYPE_UNKNOWN}; 55 hci::HciPacketizer hci_packetizer_; 56 }; 57 58 } // namespace hci 59 } // namespace bluetooth 60 } // namespace hardware 61 } // namespace android 62
