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 <map>
20 #include <memory>
21 #include <mutex>
22
23 #include "hardware/avrcp/avrcp.h"
24 #include "osi/include/properties.h"
25 #include "profile/avrcp/connection_handler.h"
26 #include "raw_address.h"
27
28 namespace bluetooth {
29 namespace avrcp {
30
31 /**
32 * AvrcpService is the management interface for AVRCP Target. It handles any
33 * required thread switching, interface registration, and provides an API
34 * for connecting and disconnecting devices.
35 * TODO (apanicke): Instead of providing a service interface implementation,
36 * have the AvrcpService itself be its interface so we don't have to access
37 * it indirectly.
38 */
39 class AvrcpService : public MediaCallbacks {
40 public:
41 /**
42 * Gets a handle to the AvrcpService
43 *
44 * Currently used by A2DP to tell AVRCP to initiate a connection to the
45 * remote device.
46 */
47 static AvrcpService* Get();
48
49 /**
50 * Returns an interface to control this service. The Avrcp::ServiceInterface
51 * handles all thread switching between the caller thread and the thread the
52 * service runs on, that way whoever uses the interface doesn't need to be
53 * aware which thread the service runs on.
54 */
55 static ServiceInterface* GetServiceInterface();
56
57 void Init(MediaInterface* media_interface, VolumeInterface* volume_interface,
58 PlayerSettingsInterface* player_settings_interface);
59 void Cleanup();
60
61 void RegisterBipServer(int psm);
62 void UnregisterBipServer();
63
64 void ConnectDevice(const RawAddress& bdaddr);
65 void DisconnectDevice(const RawAddress& bdaddr);
66
67 void SetBipClientStatus(const RawAddress& bdaddr, bool connected);
68
69 // Functions inherited from MediaCallbacks in order to receive updates
70 void SendMediaUpdate(bool track_changed, bool play_state,
71 bool queue) override;
72 void SendFolderUpdate(bool available_players, bool addressed_player,
73 bool queue) override;
74 void SendActiveDeviceChanged(const RawAddress& address) override;
75
76 void SendPlayerSettingsChanged(std::vector<PlayerAttribute> attributes,
77 std::vector<uint8_t> values) override;
78
79 class ServiceInterfaceImpl : public ServiceInterface {
80 public:
81 void Init(MediaInterface* media_interface,
82 VolumeInterface* volume_interface,
83 PlayerSettingsInterface* player_settings_interface) override;
84 void RegisterBipServer(int psm) override;
85 void UnregisterBipServer() override;
86 bool ConnectDevice(const RawAddress& bdaddr) override;
87 bool DisconnectDevice(const RawAddress& bdaddr) override;
88 void SetBipClientStatus(const RawAddress& bdaddr, bool connected) override;
89 bool Cleanup() override;
90
91 private:
92 std::mutex service_interface_lock_;
93 };
94
95 static void DebugDump(int fd);
96
97 protected:
98 void DeviceCallback(std::shared_ptr<Device> device);
99 uint16_t GetSupportedFeatures(uint16_t profile_version);
100
101 private:
102 static AvrcpService* instance_;
103 static ServiceInterfaceImpl* service_interface_;
104
105 uint32_t sdp_record_handle = -1;
106 uint32_t ct_sdp_record_handle = -1;
107 uint16_t profile_version = -1;
108
109 MediaInterface* media_interface_ = nullptr;
110 VolumeInterface* volume_interface_ = nullptr;
111 PlayerSettingsInterface* player_settings_interface_ = nullptr;
112
113 ConnectionHandler* connection_handler_;
114 };
115
116 } // namespace avrcp
117 } // namespace bluetooth
118
is_new_avrcp_enabled()119 inline bool is_new_avrcp_enabled() {
120 return osi_property_get_bool("bluetooth.profile.avrcp.target.enabled", false);
121 }
122