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