Add 1.2 NN HAL: IPreparedModel & callbacks.
Create 1.2 version IPreparedModel, IPreparedModelCallback, and
IExecutionCallback.
Currently the new interfaces are created the same as 1.0 version,
but will have more methods introduced in later CLs.
Bug: 73506513
Test: VtsHalNeuralnetworksV1_xTargetTest with 1.2 sample driver
Change-Id: Icf4d04c22f88e825d87562f1489377fdf6bf585d
diff --git a/neuralnetworks/1.2/IPreparedModelCallback.hal b/neuralnetworks/1.2/IPreparedModelCallback.hal
new file mode 100644
index 0000000..d3830c6
--- /dev/null
+++ b/neuralnetworks/1.2/IPreparedModelCallback.hal
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 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.
+ */
+
+package android.hardware.neuralnetworks@1.2;
+
+import @1.0::ErrorStatus;
+import @1.0::IPreparedModelCallback;
+import IPreparedModel;
+
+/**
+ * IPreparedModelCallback must be used to return a prepared model produced by an
+ * asynchronous task launched from IDevice::prepareModel.
+ */
+interface IPreparedModelCallback extends @1.0::IPreparedModelCallback {
+
+ /**
+ * Either notify_1_2 or notify must be invoked immediately after the asynchronous
+ * task holding this callback has finished preparing the model. If the model was
+ * successfully prepared, either notify_1_2 or notify must be invoked with
+ * ErrorStatus::NONE and the prepared model. If the model was not able to be
+ * successfully prepared, either notify_1_2 or notify must be invoked with the
+ * appropriate ErrorStatus and nullptr as the IPreparedModel. If the asynchronous
+ * task holding this callback fails to launch or if the model provided to
+ * IDevice::prepareModel is invalid, either notify_1_2 or notify must be invoked
+ * with the appropriate error as well as nullptr for the IPreparedModel.
+ *
+ * @param status Error status returned from the asynchronous model
+ * preparation task; must be:
+ * - NONE if the asynchronous task successfully prepared the
+ * model
+ * - DEVICE_UNAVAILABLE if driver is offline or busy
+ * - GENERAL_FAILURE if the asynchronous task resulted in an
+ * unspecified error
+ * - INVALID_ARGUMENT if one of the input arguments to
+ * prepareModel is invalid
+ * @param preparedModel A model that has been asynchronously prepared for
+ * execution. If the model was unable to be prepared
+ * due to an error, nullptr must be passed in place of
+ * the IPreparedModel object.
+ */
+ oneway notify_1_2(ErrorStatus status, IPreparedModel preparedModel);
+};