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 void Cleanup();
59
60 void RegisterBipServer(int psm);
61 void UnregisterBipServer();
62
63 void ConnectDevice(const RawAddress& bdaddr);
64 void DisconnectDevice(const RawAddress& bdaddr);
65
66 void SetBipClientStatus(const RawAddress& bdaddr, bool connected);
67
68 // Functions inherited from MediaCallbacks in order to receive updates
69 void SendMediaUpdate(bool track_changed, bool play_state,
70 bool queue) override;
71 void SendFolderUpdate(bool available_players, bool addressed_player,
72 bool queue) override;
73 void SendActiveDeviceChanged(const RawAddress& address) override;
74
75 class ServiceInterfaceImpl : public ServiceInterface {
76 public:
77 void Init(MediaInterface* media_interface,
78 VolumeInterface* volume_interface) override;
79 void RegisterBipServer(int psm) override;
80 void UnregisterBipServer() override;
81 bool ConnectDevice(const RawAddress& bdaddr) override;
82 bool DisconnectDevice(const RawAddress& bdaddr) override;
83 void SetBipClientStatus(const RawAddress& bdaddr, bool connected) override;
84 bool Cleanup() override;
85
86 private:
87 std::mutex service_interface_lock_;
88 };
89
90 static void DebugDump(int fd);
91
92 protected:
93 void DeviceCallback(std::shared_ptr<Device> device);
94 uint16_t GetSupportedFeatures(uint16_t profile_version);
95
96 private:
97 static AvrcpService* instance_;
98 static ServiceInterfaceImpl* service_interface_;
99
100 uint32_t sdp_record_handle = -1;
101 uint16_t profile_version = -1;
102
103 MediaInterface* media_interface_ = nullptr;
104 VolumeInterface* volume_interface_ = nullptr;
105
106 ConnectionHandler* connection_handler_;
107 };
108
109 } // namespace avrcp
110 } // namespace bluetooth
111
is_new_avrcp_enabled()112 inline bool is_new_avrcp_enabled() {
113 return osi_property_get_bool("persist.bluetooth.enablenewavrcp", true);
114 }
115