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 <functional> 22 #include <vector> 23 24 #include "hci_internals.h" 25 26 namespace android { 27 namespace hardware { 28 namespace bluetooth { 29 namespace hci { 30 31 using ::android::hardware::hidl_vec; 32 using HciPacketReadyCallback = std::function<void(void)>; 33 34 class HciPacketizer { 35 public: 36 HciPacketizer() = default; 37 bool OnDataReady(HciPacketType packet_type, const std::vector<uint8_t>& data, 38 size_t offset); 39 const hidl_vec<uint8_t>& GetPacket() const; 40 41 private: 42 size_t fill_header(HciPacketType packet_type, 43 const std::vector<uint8_t>& data, size_t offset); 44 void fill_payload(const std::vector<uint8_t>& data, size_t offset); 45 enum State { HCI_HEADER, HCI_PAYLOAD }; 46 State state_{HCI_HEADER}; 47 hidl_vec<uint8_t> packet_; 48 std::vector<uint8_t> packet_buffer_; 49 size_t bytes_remaining_{0}; 50 }; 51 52 } // namespace hci 53 } // namespace bluetooth 54 } // namespace hardware 55 } // namespace android 56