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 "avrcp_browse_packet.h"
20
21namespace bluetooth {
22namespace avrcp {
23
24class ChangePathResponseBuilder : public BrowsePacketBuilder {
25 public:
26  virtual ~ChangePathResponseBuilder() = default;
27
28  static std::unique_ptr<ChangePathResponseBuilder> MakeBuilder(
29      Status status, uint32_t num_items_in_folder);
30
31  virtual size_t size() const override;
32  virtual bool Serialize(
33      const std::shared_ptr<::bluetooth::Packet>& pkt) override;
34
35 private:
36  Status status_;
37  uint32_t num_items_in_folder_;
38
39  ChangePathResponseBuilder(Status status, uint32_t num_items_in_folder)
40      : BrowsePacketBuilder(BrowsePdu::CHANGE_PATH),
41        status_(status),
42        num_items_in_folder_(num_items_in_folder) {}
43};
44
45class ChangePathRequest : public BrowsePacket {
46 public:
47  virtual ~ChangePathRequest() = default;
48
49  /**
50   * Avrcp Change Path Packet Layout
51   *   BrowsePacket:
52   *     uint8_t pdu_;
53   *     uint16_t length_;
54   *   ChangePathRequest:
55   *     uint16_t uid_counter_;
56   *     uint8_t direction_;
57   *     uint64_t folder_uid_;
58   */
59  static constexpr size_t kMinSize() { return BrowsePacket::kMinSize() + 11; }
60
61  uint16_t GetUidCounter() const;
62  Direction GetDirection() const;
63  uint64_t GetUid() const;
64
65  virtual bool IsValid() const override;
66  virtual std::string ToString() const override;
67
68 protected:
69  using BrowsePacket::BrowsePacket;
70};
71
72class ChangePathRequestBuilder : public BrowsePacketBuilder {
73 public:
74  virtual ~ChangePathRequestBuilder() = default;
75
76  static std::unique_ptr<ChangePathRequestBuilder> MakeBuilder(
77      uint16_t uid_counter, Direction direction, uint64_t folder_uid);
78
79  virtual size_t size() const override;
80  virtual bool Serialize(
81      const std::shared_ptr<::bluetooth::Packet>& pkt) override;
82
83 private:
84  ChangePathRequestBuilder(uint16_t uid_counter, Direction direction,
85                           uint64_t folder_uid)
86      : BrowsePacketBuilder(BrowsePdu::CHANGE_PATH),
87        uid_counter_(uid_counter),
88        direction_(direction),
89        folder_uid_(folder_uid){};
90
91  uint16_t uid_counter_;
92  Direction direction_;
93  uint64_t folder_uid_;
94};
95
96}  // namespace avrcp
97}  // namespace bluetooth