1 /*
2  * Copyright 2019 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 <vector>
20 
21 #include "a2dp_encoding.h"
22 #include "common/message_loop_thread.h"
23 #include "hardware/bt_av.h"
24 
25 namespace bluetooth {
26 namespace audio {
27 namespace hidl {
28 namespace a2dp {
29 
30 bool update_codec_offloading_capabilities(
31         const std::vector<btav_a2dp_codec_config_t>& framework_preference);
32 
33 // Check if new bluetooth_audio is enabled
34 bool is_hal_2_0_enabled();
35 
36 // Check if new bluetooth_audio is running with offloading encoders
37 bool is_hal_2_0_offloading();
38 
39 // Initialize BluetoothAudio HAL: openProvider
40 bool init(bluetooth::common::MessageLoopThread* message_loop,
41           bluetooth::audio::a2dp::StreamCallbacks const* stream_callbacks, bool offload_enabled);
42 
43 // Clean up BluetoothAudio HAL
44 void cleanup();
45 
46 // Set up the codec into BluetoothAudio HAL
47 bool setup_codec(A2dpCodecConfig* a2dp_config, uint16_t peer_mtu,
48                  int preferred_encoding_interval_us);
49 
50 // Send command to the BluetoothAudio HAL: StartSession, EndSession,
51 // StreamStarted, StreamSuspended
52 void start_session();
53 void end_session();
54 void ack_stream_started(::bluetooth::audio::a2dp::Status status);
55 void ack_stream_suspended(::bluetooth::audio::a2dp::Status status);
56 
57 // Read from the FMQ of BluetoothAudio HAL
58 size_t read(uint8_t* p_buf, uint32_t len);
59 
60 // Update A2DP delay report to BluetoothAudio HAL
61 void set_remote_delay(uint16_t delay_report);
62 
63 }  // namespace a2dp
64 }  // namespace hidl
65 }  // namespace audio
66 }  // namespace bluetooth
67