register_notification_packet.h revision 8f7377353db29efe0a506123deec03d70935957a 
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 "vendor_packet.h"
20
21namespace bluetooth {
22namespace avrcp {
23
24class RegisterNotificationResponseBuilder : public VendorPacketBuilder {
25 public:
26  virtual ~RegisterNotificationResponseBuilder() = default;
27
28  // Playback Status Changed Maker
29  static std::unique_ptr<RegisterNotificationResponseBuilder>
30  MakePlaybackStatusBuilder(bool interim, uint8_t play_status);
31  // Track Changed Maker
32  static std::unique_ptr<RegisterNotificationResponseBuilder>
33  MakeTrackChangedBuilder(bool interim, uint64_t track_uid);
34  // Playback Position Changed Maker
35  static std::unique_ptr<RegisterNotificationResponseBuilder>
36  MakePlaybackPositionBuilder(bool interim, uint32_t playback_pos);
37
38  static std::unique_ptr<RegisterNotificationResponseBuilder>
39  MakeNowPlayingBuilder(bool interim);
40
41  static std::unique_ptr<RegisterNotificationResponseBuilder>
42  MakeAvailablePlayersBuilder(bool interim);
43
44  static std::unique_ptr<RegisterNotificationResponseBuilder>
45  MakeAddressedPlayerBuilder(bool interim, uint16_t player_id,
46                             uint16_t uid_counter);
47
48  static std::unique_ptr<RegisterNotificationResponseBuilder>
49  MakeUidsChangedBuilder(bool interim, uint16_t uid_counter);
50
51  virtual size_t size() const override;
52  virtual bool Serialize(
53      const std::shared_ptr<::bluetooth::Packet>& pkt) override;
54
55 protected:
56  Event event_;
57  uint64_t data_;
58
59  RegisterNotificationResponseBuilder(bool interim, Event event)
60      : VendorPacketBuilder(interim ? CType::INTERIM : CType::CHANGED,
61                            CommandPdu::REGISTER_NOTIFICATION,
62                            PacketType::SINGLE),
63        event_(event){};
64};
65
66class RegisterNotificationRequest : public VendorPacket {
67 public:
68  virtual ~RegisterNotificationRequest() = default;
69
70  /**
71   *  Register Notificaiton Request Packet Layout
72   *   AvrcpPacket:
73   *     CType c_type_;
74   *     uint8_t subunit_type_ : 5;
75   *     uint8_t subunit_id_ : 3;
76   *     Opcode opcode_;
77   *   VendorPacket:
78   *     uint8_t company_id[3];
79   *     uint8_t command_pdu;
80   *     uint8_t packet_type;
81   *     uint16_t param_length;
82   *   RegisterNotificationRequestPacket:
83   *     uint8_t event_id;
84   *     uint32_t interval;  // Only used for PLAYBACK_POS_CHANGED
85   */
86  static constexpr size_t kMinSize() { return VendorPacket::kMinSize() + 5; }
87
88  // Getter Functions
89  Event GetEventRegistered() const;
90  uint32_t GetInterval() const;
91
92  // Overloaded Functions
93  virtual bool IsValid() const override;
94  virtual std::string ToString() const override;
95
96 protected:
97  using VendorPacket::VendorPacket;
98};
99
100}  // namespace avrcp
101}  // namespace bluetooth