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 #define LOG_TAG "BTAudioProvidersFactory"
18
19 #include <android-base/logging.h>
20
21 #include "BluetoothAudioProvidersFactory.h"
22 #include "BluetoothAudioSupportedCodecsDB.h"
23
24 namespace android {
25 namespace hardware {
26 namespace bluetooth {
27 namespace audio {
28 namespace V2_0 {
29 namespace implementation {
30
31 using ::android::hardware::hidl_vec;
32 using ::android::hardware::Void;
33
34 A2dpSoftwareAudioProvider
35 BluetoothAudioProvidersFactory::a2dp_software_provider_instance_;
36 A2dpOffloadAudioProvider
37 BluetoothAudioProvidersFactory::a2dp_offload_provider_instance_;
38 HearingAidAudioProvider
39 BluetoothAudioProvidersFactory::hearing_aid_provider_instance_;
40
openProvider(const SessionType sessionType,openProvider_cb _hidl_cb)41 Return<void> BluetoothAudioProvidersFactory::openProvider(
42 const SessionType sessionType, openProvider_cb _hidl_cb) {
43 LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType);
44 BluetoothAudioStatus status = BluetoothAudioStatus::SUCCESS;
45 BluetoothAudioProvider* provider = nullptr;
46 switch (sessionType) {
47 case SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH:
48 provider = &a2dp_software_provider_instance_;
49 break;
50 case SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH:
51 provider = &a2dp_offload_provider_instance_;
52 break;
53 case SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH:
54 provider = &hearing_aid_provider_instance_;
55 break;
56 default:
57 status = BluetoothAudioStatus::FAILURE;
58 }
59 if (provider == nullptr || !provider->isValid(sessionType)) {
60 provider = nullptr;
61 status = BluetoothAudioStatus::FAILURE;
62 LOG(ERROR) << __func__ << " - SessionType=" << toString(sessionType)
63 << ", status=" << toString(status);
64 }
65 _hidl_cb(status, provider);
66 return Void();
67 }
68
getProviderCapabilities(const SessionType sessionType,getProviderCapabilities_cb _hidl_cb)69 Return<void> BluetoothAudioProvidersFactory::getProviderCapabilities(
70 const SessionType sessionType, getProviderCapabilities_cb _hidl_cb) {
71 hidl_vec<AudioCapabilities> audio_capabilities =
72 hidl_vec<AudioCapabilities>(0);
73 if (sessionType == SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH) {
74 std::vector<CodecCapabilities> db_codec_capabilities =
75 android::bluetooth::audio::GetOffloadCodecCapabilities(sessionType);
76 if (db_codec_capabilities.size()) {
77 audio_capabilities.resize(db_codec_capabilities.size());
78 for (int i = 0; i < db_codec_capabilities.size(); ++i) {
79 audio_capabilities[i].codecCapabilities(db_codec_capabilities[i]);
80 }
81 }
82 } else if (sessionType != SessionType::UNKNOWN) {
83 std::vector<PcmParameters> db_pcm_capabilities =
84 android::bluetooth::audio::GetSoftwarePcmCapabilities();
85 if (db_pcm_capabilities.size() == 1) {
86 audio_capabilities.resize(1);
87 audio_capabilities[0].pcmCapabilities(db_pcm_capabilities[0]);
88 }
89 }
90 LOG(INFO) << __func__ << " - SessionType=" << toString(sessionType)
91 << " supports " << audio_capabilities.size() << " codecs";
92 _hidl_cb(audio_capabilities);
93 return Void();
94 }
95
HIDL_FETCH_IBluetoothAudioProvidersFactory(const char *)96 IBluetoothAudioProvidersFactory* HIDL_FETCH_IBluetoothAudioProvidersFactory(
97 const char* /* name */) {
98 return new BluetoothAudioProvidersFactory();
99 }
100
101 } // namespace implementation
102 } // namespace V2_0
103 } // namespace audio
104 } // namespace bluetooth
105 } // namespace hardware
106 } // namespace android
107