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89 lines
2.5 KiB
89 lines
2.5 KiB
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "avrcp_packet.h"
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namespace bluetooth {
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namespace avrcp {
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class VendorPacketBuilder : public avrcp::PacketBuilder {
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public:
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virtual ~VendorPacketBuilder() = default;
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static std::unique_ptr<VendorPacketBuilder> MakeBuilder(
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CType ctype, CommandPdu pdu, PacketType packet_type,
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std::unique_ptr<::bluetooth::PacketBuilder> payload);
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virtual size_t size() const override;
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virtual bool Serialize(
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const std::shared_ptr<::bluetooth::Packet>& pkt) override;
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protected:
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CommandPdu pdu_;
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PacketType packet_type_;
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uint16_t param_length_;
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void PushHeader(const std::shared_ptr<::bluetooth::Packet>& pkt,
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uint16_t parameter_length);
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// Helper function used a couple other AVRCP packet builders
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bool PushAttributeValue(const std::shared_ptr<::bluetooth::Packet>& pkt,
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const AttributeEntry& entry);
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VendorPacketBuilder(CType ctype, CommandPdu pdu, PacketType packet_type)
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: PacketBuilder(ctype, 0x09, 0x00, Opcode::VENDOR),
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pdu_(pdu),
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packet_type_(packet_type){};
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};
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class VendorPacket : public avrcp::Packet {
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public:
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virtual ~VendorPacket() = default;
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/**
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* Avrcp Vendor Packet Layout
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* AvrcpPacket:
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* CType c_type_;
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* uint8_t subunit_type_ : 5;
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* uint8_t subunit_id_ : 3;
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* Opcode opcode_;
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* VendorPacket:
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* uint8_t company_id[3];
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* uint8_t command_pdu;
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* uint8_t packet_type;
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* uint16_t parameter_length;
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* uint8_t[] payload;
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*/
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static constexpr size_t kMinSize() { return Packet::kMinSize() + 7; };
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// Getter Functions
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uint32_t GetCompanyId() const;
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CommandPdu GetCommandPdu() const;
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PacketType GetPacketType() const;
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uint16_t GetParameterLength() const;
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// Overloaded functions
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virtual bool IsValid() const override;
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virtual std::string ToString() const override;
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protected:
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using Packet::Packet;
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};
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} // namespace avrcp
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} // namespace bluetooth
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