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 25namespace android { 26namespace hardware { 27namespace bluetooth { 28namespace hci { 29 30using ::android::hardware::hidl_vec; 31using HciPacketReadyCallback = std::function<void(void)>; 32 33class HciPacketizer { 34 public: 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