From 534556391ae153b1e8fdd11b233e2dc6ecd1e530 Mon Sep 17 00:00:00 2001
From: Michael Butler <butlermichael@google.com>
Date: Mon, 25 Oct 2021 11:20:33 -0700
Subject: Create NN AIDL adapter

This change adds the following adapters:
* nn::IDevice -> BnDevice
* nn::IPreparedModel -> BnPreparedModel
* nn::IBurst -> BnBurst
* nn::IBuffer -> BnBuffer

Bug: N/A
Test: mma
Test: locally created a binderized service with this adapter code,
      which passed VtsHalNeuralnetworksTargetTest
Change-Id: I966f65a1e4d75284c050b77f3f40c515e4970130
---
 neuralnetworks/utils/adapter/aidl/src/Adapter.cpp | 46 +++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 neuralnetworks/utils/adapter/aidl/src/Adapter.cpp

(limited to 'neuralnetworks/utils/adapter/aidl/src/Adapter.cpp')

diff --git a/neuralnetworks/utils/adapter/aidl/src/Adapter.cpp b/neuralnetworks/utils/adapter/aidl/src/Adapter.cpp
new file mode 100644
index 0000000000..d0b56e89cc
--- /dev/null
+++ b/neuralnetworks/utils/adapter/aidl/src/Adapter.cpp
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#include "Adapter.h"
+
+#include "Device.h"
+
+#include <aidl/android/hardware/neuralnetworks/BnDevice.h>
+#include <android/binder_interface_utils.h>
+#include <nnapi/IDevice.h>
+#include <nnapi/Types.h>
+
+#include <functional>
+#include <memory>
+#include <thread>
+
+// See hardware/interfaces/neuralnetworks/utils/README.md for more information on AIDL interface
+// lifetimes across processes and for protecting asynchronous calls across AIDL.
+
+namespace aidl::android::hardware::neuralnetworks::adapter {
+
+std::shared_ptr<BnDevice> adapt(::android::nn::SharedDevice device, Executor executor) {
+    return ndk::SharedRefBase::make<Device>(std::move(device), std::move(executor));
+}
+
+std::shared_ptr<BnDevice> adapt(::android::nn::SharedDevice device) {
+    Executor defaultExecutor = [](Task task, ::android::nn::OptionalTimePoint /*deadline*/) {
+        std::thread(std::move(task)).detach();
+    };
+    return adapt(std::move(device), std::move(defaultExecutor));
+}
+
+}  // namespace aidl::android::hardware::neuralnetworks::adapter
-- 
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