1 /*
2 * Copyright (C) 2021 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 "SampleDriverAidlLimited"
18
19 #include <aidl/android/hardware/neuralnetworks/BnDevice.h>
20 #include <aidl/android/hardware/neuralnetworks/IDevice.h>
21 #include <android-base/logging.h>
22 #include <android/binder_interface_utils.h>
23 #include <android/binder_manager.h>
24 #include <android/binder_process.h>
25 #include <nnapi/Types.h>
26 #include <nnapi/hal/aidl/Adapter.h>
27
28 #include <algorithm>
29 #include <memory>
30 #include <string>
31 #include <utility>
32 #include <vector>
33
34 #include "CanonicalDevice.h"
35 #include "LimitedSupportDevice.h"
36
37 namespace android::nn::sample {
38 namespace {
39
40 using AidlBnDevice = ::aidl::android::hardware::neuralnetworks::BnDevice;
41 using AidlIDevice = ::aidl::android::hardware::neuralnetworks::IDevice;
42 using ::aidl::android::hardware::neuralnetworks::adapter::adapt;
43
main()44 int main() {
45 constexpr size_t kNumberOfThreads = 4;
46 ABinderProcess_setThreadPoolMaxThreadCount(kNumberOfThreads);
47
48 // Get the canonical interface objects. When developing the SL, you may want to make this
49 // "getDevices" instead.
50 const auto devices = getExampleLimitedDevices();
51
52 // Adapt all canonical interface objects to AIDL interface objects.
53 std::vector<std::shared_ptr<AidlBnDevice>> aidlDevices;
54 aidlDevices.reserve(devices.size());
55 std::transform(devices.begin(), devices.end(), std::back_inserter(aidlDevices),
56 [](const auto& device) { return adapt(device); });
57
58 // Register all AIDL interface objects.
59 CHECK_EQ(devices.size(), aidlDevices.size());
60 for (size_t i = 0; i < aidlDevices.size(); ++i) {
61 const std::string name = devices[i]->getName();
62 if (name != "nnapi-sample_quant") {
63 continue;
64 }
65
66 const std::string fqName = std::string(AidlIDevice::descriptor) + "/" + name;
67 const binder_status_t status =
68 AServiceManager_addService(aidlDevices[i]->asBinder().get(), fqName.c_str());
69 if (status != STATUS_OK) {
70 LOG(ERROR) << "Could not register service " << name;
71 return 1;
72 }
73 }
74
75 ABinderProcess_joinThreadPool();
76 LOG(ERROR) << "Service exited!";
77 return 1;
78 }
79
80 } // namespace
81 } // namespace android::nn::sample
82
main()83 int main() {
84 return android::nn::sample::main();
85 }
86