You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
112 lines
3.1 KiB
112 lines
3.1 KiB
/*
|
|
* 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 <base/logging.h>
|
|
#include <base/macros.h>
|
|
#include <iostream>
|
|
|
|
#include "hardware/avrcp/avrcp_common.h"
|
|
#include "hardware/avrcp/avrcp_logging_helper.h"
|
|
#include "packet/base/iterator.h"
|
|
#include "packet/base/packet.h"
|
|
#include "packet/base/packet_builder.h"
|
|
|
|
namespace bluetooth {
|
|
namespace avrcp {
|
|
|
|
class PacketBuilder : public ::bluetooth::PacketBuilder {
|
|
public:
|
|
virtual ~PacketBuilder() = default;
|
|
|
|
static std::unique_ptr<PacketBuilder> MakeBuilder(
|
|
CType cType, uint8_t subunit_type, uint8_t subunit_id, Opcode opcode,
|
|
std::unique_ptr<::bluetooth::PacketBuilder> packet);
|
|
|
|
virtual size_t size() const override;
|
|
virtual bool Serialize(
|
|
const std::shared_ptr<::bluetooth::Packet>& pkt) override;
|
|
|
|
protected:
|
|
CType c_type_;
|
|
uint8_t subunit_type_ : 5;
|
|
uint8_t subunit_id_ : 3;
|
|
Opcode opcode_;
|
|
std::unique_ptr<::bluetooth::PacketBuilder> payload_;
|
|
|
|
void PushHeader(const std::shared_ptr<::bluetooth::Packet>& pkt);
|
|
bool PushCompanyId(const std::shared_ptr<::bluetooth::Packet>& pkt,
|
|
uint32_t company_id);
|
|
|
|
PacketBuilder(CType type, uint8_t subunit_type, uint8_t subunit_id,
|
|
Opcode opcode)
|
|
: c_type_(type),
|
|
subunit_type_(subunit_type),
|
|
subunit_id_(subunit_id),
|
|
opcode_(opcode){};
|
|
};
|
|
|
|
class Packet : public ::bluetooth::Packet {
|
|
public:
|
|
virtual ~Packet() = default;
|
|
|
|
// TODO (apanicke): Right now we can use this to build an AvrcpPacket from
|
|
// another packet type. In the future, we can remove this in favor of
|
|
// getting an AVRCP Packet directly from an AVCTP Packet
|
|
static std::shared_ptr<Packet> Parse(
|
|
std::shared_ptr<::bluetooth::Packet> pkt);
|
|
|
|
/**
|
|
* Avrcp Packet Layout
|
|
* CType c_type_;
|
|
* uint8_t subunit_type_ : 5;
|
|
* uint8_t subunit_id_ : 3;
|
|
* Opcode opcode_;
|
|
* uint8_t[] payload_;
|
|
*/
|
|
static constexpr size_t kMinSize() { return 3; };
|
|
|
|
// Getter Functions
|
|
CType GetCType() const;
|
|
uint8_t GetSubunitType() const;
|
|
uint8_t GetSubunitId() const;
|
|
Opcode GetOpcode() const;
|
|
|
|
// Overloaded Functions
|
|
virtual bool IsValid() const override;
|
|
virtual std::string ToString() const override;
|
|
|
|
protected:
|
|
using ::bluetooth::Packet::Packet;
|
|
|
|
static inline uint32_t PullCompanyId(Iterator it) {
|
|
uint32_t value = 0;
|
|
for (int i = 0; i < 3; i++) {
|
|
value <<= 8;
|
|
value |= *it++;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
private:
|
|
virtual std::pair<size_t, size_t> GetPayloadIndecies() const override;
|
|
DISALLOW_COPY_AND_ASSIGN(Packet);
|
|
};
|
|
|
|
} // namespace avrcp
|
|
} // namespace bluetooth
|