1 /* 2 * Copyright 2018 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 "avrcp_packet.h" 20 21 namespace bluetooth { 22 namespace avrcp { 23 24 class PassThroughPacketBuilder : public PacketBuilder { 25 public: 26 virtual ~PassThroughPacketBuilder() = default; 27 28 static std::unique_ptr<PassThroughPacketBuilder> MakeBuilder( 29 bool response, bool pushed, uint8_t operation_id); 30 31 virtual size_t size() const override; 32 virtual bool Serialize( 33 const std::shared_ptr<::bluetooth::Packet>& pkt) override; 34 35 private: 36 bool pushed_; 37 uint8_t opperation_id_; 38 PassThroughPacketBuilder(bool response,bool pushed,uint8_t opperation_id)39 PassThroughPacketBuilder(bool response, bool pushed, uint8_t opperation_id) 40 : PacketBuilder(response ? CType::ACCEPTED : CType::CONTROL, 0x09, 0x00, 41 Opcode::PASS_THROUGH), 42 pushed_(pushed), 43 opperation_id_(opperation_id){}; 44 }; 45 46 class PassThroughPacket : public Packet { 47 public: 48 virtual ~PassThroughPacket() = default; 49 50 /** 51 * Pass Through Packet Layout 52 * AvrcpPacket: 53 * CType c_type_; 54 * uint8_t subunit_type_ : 5; 55 * uint8_t subunit_id_ : 3; 56 * Opcode opcode_; 57 * PassThroughPacket: 58 * uint8_t state : 1; 59 * uint8_t opperation_id : 7; 60 * uint8_t data_length; 61 */ kMinSize()62 static constexpr size_t kMinSize() { return Packet::kMinSize() + 2; } 63 64 // Getter Functions 65 KeyState GetKeyState() const; 66 uint8_t GetOperationId() const; 67 68 // Overloaded Functions 69 virtual bool IsValid() const override; 70 virtual std::string ToString() const override; 71 72 protected: 73 using Packet::Packet; 74 }; 75 76 } // namespace avrcp 77 } // namespace bluetooth