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 <functional> 20 21 #include <hidl/HidlSupport.h> 22 23 #include "hci_internals.h" 24 25 namespace android { 26 namespace hardware { 27 namespace bluetooth { 28 namespace hci { 29 30 using ::android::hardware::hidl_vec; 31 using HciPacketReadyCallback = std::function<void(void)>; 32 33 class HciPacketizer { 34 public: HciPacketizer(HciPacketReadyCallback packet_cb)35 HciPacketizer(HciPacketReadyCallback packet_cb) 36 : packet_ready_cb_(packet_cb){}; 37 void OnDataReady(int fd, HciPacketType packet_type); 38 const hidl_vec<uint8_t>& GetPacket() const; 39 40 protected: 41 enum State { HCI_PREAMBLE, HCI_PAYLOAD }; 42 State state_{HCI_PREAMBLE}; 43 uint8_t preamble_[HCI_PREAMBLE_SIZE_MAX]; 44 hidl_vec<uint8_t> packet_; 45 size_t bytes_remaining_{0}; 46 size_t bytes_read_{0}; 47 HciPacketReadyCallback packet_ready_cb_; 48 }; 49 50 } // namespace hci 51 } // namespace bluetooth 52 } // namespace hardware 53 } // namespace android 54