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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 "vendor_packet.h"
// TODO (apanicke): Set Absolute Volume request vs response have the same
// packet structure, the only difference between the two is the CType.
// Adding a passed flag as a parameter would be possible but I feel that
// this would break the design pattern of request vs response. Look into
// this for the future.
namespace bluetooth {
namespace avrcp {
class SetAbsoluteVolumeRequestBuilder : public VendorPacketBuilder {
public:
virtual ~SetAbsoluteVolumeRequestBuilder() = default;
static std::unique_ptr<SetAbsoluteVolumeRequestBuilder> MakeBuilder(
uint8_t volume);
virtual size_t size() const override;
virtual bool Serialize(
const std::shared_ptr<::bluetooth::Packet>& pkt) override;
protected:
uint8_t volume_;
SetAbsoluteVolumeRequestBuilder(uint8_t volume)
: VendorPacketBuilder(CType::CONTROL, CommandPdu::SET_ABSOLUTE_VOLUME,
PacketType::SINGLE),
volume_(volume){};
};
class SetAbsoluteVolumeResponse : public VendorPacket {
public:
virtual ~SetAbsoluteVolumeResponse() = default;
/**
* AVRCP Play Item Request 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;
* SetAbsoluteVolumeResponse:
* uint8_t volume;
*/
static constexpr size_t kMinSize() { return VendorPacket::kMinSize() + 1; }
uint8_t GetVolume() const;
virtual bool IsValid() const override;
virtual std::string ToString() const override;
protected:
using VendorPacket::VendorPacket;
};
} // namespace avrcp
} // namespace bluetooth
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