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 <set> 20 #include "vendor_packet.h" 21 22 namespace bluetooth { 23 namespace avrcp { 24 25 class GetElementAttributesRequest : public VendorPacket { 26 public: 27 virtual ~GetElementAttributesRequest() = default; 28 29 /** 30 * Register Notificaiton Request Packet Layout 31 * AvrcpPacket: 32 * CType c_type_; 33 * uint8_t subunit_type_ : 5; 34 * uint8_t subunit_id_ : 3; 35 * Opcode opcode_; 36 * VendorPacket: 37 * uint8_t company_id[3]; 38 * uint8_t command_pdu; 39 * uint8_t packet_type; 40 * uint16_t param_length; 41 * RegisterNotificationRequestPacket: 42 * uint64_t identifier; 43 * uint8_t number_of_attributes; 44 * uint32_t attributes_requested[]; 45 */ kMinSize()46 static constexpr size_t kMinSize() { return VendorPacket::kMinSize() + 9; } 47 48 // Getter Functions 49 uint64_t GetIdentifier() const; 50 uint8_t GetNumAttributes() const; 51 std::vector<Attribute> GetAttributesRequested() const; 52 53 // Overloaded Functions 54 virtual bool IsValid() const override; 55 virtual std::string ToString() const override; 56 57 protected: 58 using VendorPacket::VendorPacket; 59 }; 60 61 template <class Builder> 62 class AttributesResponseBuilderTestUser; 63 64 class GetElementAttributesResponseBuilder : public VendorPacketBuilder { 65 public: 66 virtual ~GetElementAttributesResponseBuilder() = default; 67 using Builder = std::unique_ptr<GetElementAttributesResponseBuilder>; 68 static Builder MakeBuilder(size_t mtu); 69 70 size_t AddAttributeEntry(AttributeEntry entry); 71 size_t AddAttributeEntry(Attribute attribute, const std::string& value); 72 clear()73 virtual void clear() { entries_.clear(); } 74 kHeaderSize()75 static constexpr size_t kHeaderSize() { return VendorPacket::kMinSize() + 1; } 76 77 virtual size_t size() const override; 78 virtual bool Serialize( 79 const std::shared_ptr<::bluetooth::Packet>& pkt) override; 80 81 private: 82 std::set<AttributeEntry> entries_; 83 size_t mtu_; 84 friend class AttributesResponseBuilderTestUser< 85 GetElementAttributesResponseBuilder>; 86 GetElementAttributesResponseBuilder(size_t mtu)87 GetElementAttributesResponseBuilder(size_t mtu) 88 : VendorPacketBuilder(CType::STABLE, CommandPdu::GET_ELEMENT_ATTRIBUTES, 89 PacketType::SINGLE), 90 mtu_(mtu){}; 91 }; 92 93 } // namespace avrcp 94 } // namespace bluetooth 95