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
21#include "avrcp_browse_packet.h"
22
23namespace bluetooth {
24namespace avrcp {
25
26class GetItemAttributesResponseBuilder : public BrowsePacketBuilder {
27 public:
28  virtual ~GetItemAttributesResponseBuilder() = default;
29
30  static std::unique_ptr<GetItemAttributesResponseBuilder> MakeBuilder(
31      Status status, size_t mtu);
32
33  bool AddAttributeEntry(AttributeEntry entry);
34  bool AddAttributeEntry(Attribute, std::string);
35
36  virtual size_t size() const override;
37  virtual bool Serialize(
38      const std::shared_ptr<::bluetooth::Packet>& pkt) override;
39
40 private:
41  Status status_;
42  size_t mtu_;
43  std::set<AttributeEntry> entries_;
44
45  GetItemAttributesResponseBuilder(Status status, size_t mtu)
46      : BrowsePacketBuilder(BrowsePdu::GET_ITEM_ATTRIBUTES),
47        status_(status),
48        mtu_(mtu) {}
49};
50
51class GetItemAttributesRequest : public BrowsePacket {
52 public:
53  virtual ~GetItemAttributesRequest() = default;
54
55  /**
56   * Avrcp Change Path Packet Layout
57   *   BrowsePacket:
58   *     uint8_t pdu_;
59   *     uint16_t length_;
60   *   GetItemAttributesRequest:
61   *     uint8_t scope_;
62   *     uint64_t uid_;
63   *     uint16_t uid_counter_;
64   *     uint8_t attr_count_;
65   *     uint32_t[] attr_requested_;
66   */
67  static constexpr size_t kMinSize() { return BrowsePacket::kMinSize() + 12; }
68
69  Scope GetScope() const;
70  uint64_t GetUid() const;
71  uint16_t GetUidCounter() const;
72  uint8_t GetNumAttributes()
73      const;  // If this value is zero, then all attributes are requested
74  std::vector<Attribute> GetAttributesRequested() const;
75
76  virtual bool IsValid() const override;
77  virtual std::string ToString() const override;
78
79 protected:
80  using BrowsePacket::BrowsePacket;
81};
82
83}  // namespace avrcp
84}  // namespace bluetooth