Add health.filesystem HAL.

Test: builds
Bug: 111655771
Change-Id: I29f157912ef74b4efd64def93ea125aa079ac1eb
Merged-In: I29f157912ef74b4efd64def93ea125aa079ac1eb

health/filesystem/1.0/Android.bp

@@ -0,0 +1,21 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.health.filesystem@1.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IFileSystem.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "Result",
+    ],
+    gen_java: true,
+}
+

health/filesystem/1.0/IFileSystem.hal

@@ -0,0 +1,33 @@
+/*
+ * 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.health.filesystem@1.0;
+
+/**
+ * IFileSystem is an interface that provides operations on underlying storage
+ * devices, including flash memory.
+ */
+interface IFileSystem {
+    /**
+     * Start garbage collection on the driver of storage devices. This function
+     * must be called at regular intervals when it is a good time for a
+     * longer-running cleanup tasks.
+     *
+     * @return result Execution result. See documentation for Result for
+     *     details.
+     */
+    garbageCollect() generates (Result result);
+};

health/filesystem/1.0/types.hal

@@ -0,0 +1,39 @@
+/*
+ * 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.health.filesystem@1.0;
+
+/**
+ * Status values for HAL methods.
+ */
+enum Result : uint32_t {
+    /**
+     * Execution of the method is successful.
+     */
+    SUCCESS = 0,
+    /**
+     * Execution of the method timed out.
+     */
+    TIMEOUT,
+    /**
+     * An IO error is encountered when the HAL communicates with the device.
+     */
+    IO_ERROR,
+    /**
+     * An unknown error is encountered.
+     */
+    UNKNOWN_ERROR,
+};