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 "bt_vendor_lib.h" 22 #include "hci_internals.h" 23 #include "hci_packetizer.h" 24 25 namespace android { 26 namespace hardware { 27 namespace bluetooth { 28 namespace hci { 29 30 using ::android::hardware::hidl_vec; 31 using PacketReadCallback = std::function<void(const hidl_vec<uint8_t>&)>; 32 33 // Implementation of HCI protocol bits common to different transports 34 class HciProtocol { 35 public: 36 HciProtocol() = default; ~HciProtocol()37 virtual ~HciProtocol(){}; 38 39 // Protocol-specific implementation of sending packets. 40 virtual size_t Send(uint8_t type, const uint8_t* data, size_t length) = 0; 41 42 protected: 43 static size_t WriteSafely(int fd, const uint8_t* data, size_t length); 44 }; 45 46 } // namespace hci 47 } // namespace bluetooth 48 } // namespace hardware 49 } // namespace android 50