1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
* Copyright 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "BluetoothAudioSession.h"
namespace aidl {
namespace android {
namespace hardware {
namespace bluetooth {
namespace audio {
class BluetoothAudioSessionControl {
public:
/***
* The control API helps to check if session is ready or not
* @return: true if the Bluetooth stack has started th specified session
***/
static bool IsSessionReady(const SessionType& session_type) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->IsSessionReady();
}
return false;
}
/***
* The control API helps the bluetooth_audio module to register
* PortStatusCallbacks
* @return: cookie - the assigned number to this bluetooth_audio output
***/
static uint16_t RegisterControlResultCback(
const SessionType& session_type, const PortStatusCallbacks& cbacks) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->RegisterStatusCback(cbacks);
}
return kObserversCookieUndefined;
}
/***
* The control API helps the bluetooth_audio module to unregister
* PortStatusCallbacks
* @param: cookie - indicates which bluetooth_audio output is
***/
static void UnregisterControlResultCback(const SessionType& session_type,
uint16_t cookie) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
session_ptr->UnregisterStatusCback(cookie);
}
}
/***
* The control API for the bluetooth_audio module to get current
* AudioConfiguration
***/
static const AudioConfiguration GetAudioConfig(
const SessionType& session_type) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->GetAudioConfig();
}
switch (session_type) {
case SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
case SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH:
return AudioConfiguration(CodecConfiguration{});
case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
return AudioConfiguration(LeAudioConfiguration{});
case SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
return AudioConfiguration(LeAudioBroadcastConfiguration{});
default:
return AudioConfiguration(PcmConfiguration{});
}
}
/***
* The control API for the bluetooth_audio module to get current
* LE audio connection map
***/
static const AudioConfiguration GetLeAudioConnectionMap(
const SessionType& session_type) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if ((session_type ==
SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
session_type ==
SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) &&
session_ptr != nullptr) {
return session_ptr->GetLeAudioConnectionMap();
}
return AudioConfiguration(LeAudioConfiguration{});
}
/***
* Those control APIs for the bluetooth_audio module to start / suspend /
stop
* stream, to check position, and to update metadata.
***/
static bool StartStream(const SessionType& session_type,
bool low_latency = false) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->StartStream(low_latency);
}
return false;
}
static bool SuspendStream(const SessionType& session_type) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->SuspendStream();
}
return false;
}
static void StopStream(const SessionType& session_type) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
session_ptr->StopStream();
}
}
static bool GetPresentationPosition(
const SessionType& session_type,
PresentationPosition& presentation_position) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->GetPresentationPosition(presentation_position);
}
return false;
}
static void UpdateSourceMetadata(
const SessionType& session_type,
const struct source_metadata& source_metadata) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
session_ptr->UpdateSourceMetadata(source_metadata);
}
}
static void UpdateSinkMetadata(const SessionType& session_type,
const struct sink_metadata& sink_metadata) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
session_ptr->UpdateSinkMetadata(sink_metadata);
}
}
static std::vector<LatencyMode> GetSupportedLatencyModes(
const SessionType& session_type) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->GetSupportedLatencyModes();
}
return std::vector<LatencyMode>();
}
static void SetLatencyMode(const SessionType& session_type,
const LatencyMode& latency_mode) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
session_ptr->SetLatencyMode(latency_mode);
}
}
/***
* The control API writes stream to FMQ
***/
static size_t OutWritePcmData(const SessionType& session_type,
const void* buffer, size_t bytes) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->OutWritePcmData(buffer, bytes);
}
return 0;
}
/***
* The control API reads stream from FMQ
***/
static size_t InReadPcmData(const SessionType& session_type, void* buffer,
size_t bytes) {
std::shared_ptr<BluetoothAudioSession> session_ptr =
BluetoothAudioSessionInstance::GetSessionInstance(session_type);
if (session_ptr != nullptr) {
return session_ptr->InReadPcmData(buffer, bytes);
}
return 0;
}
};
} // namespace audio
} // namespace bluetooth
} // namespace hardware
} // namespace android
} // namespace aidl
|
