Create Power Stats AIDL interface

Bug: 162472196
Test: m
Change-Id: I225135c24cc713da085ff7238c1b0695e8ab93ed
diff --git a/powerstats/aidl/default/Android.bp b/powerstats/aidl/default/Android.bp
new file mode 100644
index 0000000..caecd88
--- /dev/null
+++ b/powerstats/aidl/default/Android.bp
@@ -0,0 +1,30 @@
+// Copyright (C) 2020 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.
+
+cc_binary {
+    name: "android.hardware.powerstats-service.example",
+    relative_install_path: "hw",
+    init_rc: ["powerstats-default.rc"],
+    vintf_fragments: ["powerstats-default.xml"],
+    vendor: true,
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "android.hardware.powerstats-ndk_platform",
+    ],
+    srcs: [
+        "main.cpp",
+        "PowerStats.cpp",
+    ],
+}
diff --git a/powerstats/aidl/default/PowerStats.cpp b/powerstats/aidl/default/PowerStats.cpp
new file mode 100644
index 0000000..50a829e
--- /dev/null
+++ b/powerstats/aidl/default/PowerStats.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2020 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 "PowerStats.h"
+
+#include <android-base/logging.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace powerstats {
+
+ndk::ScopedAStatus PowerStats::getEnergyData(const std::vector<int32_t>& in_railIndices,
+                                             std::vector<EnergyData>* _aidl_return) {
+    (void)in_railIndices;
+    (void)_aidl_return;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus PowerStats::getPowerEntityInfo(std::vector<PowerEntityInfo>* _aidl_return) {
+    (void)_aidl_return;
+    return ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus PowerStats::getPowerEntityStateInfo(
+        const std::vector<int32_t>& in_powerEntityIds,
+        std::vector<PowerEntityStateSpace>* _aidl_return) {
+    (void)in_powerEntityIds;
+    (void)_aidl_return;
+    return ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus PowerStats::getPowerEntityStateResidencyData(
+        const std::vector<int32_t>& in_powerEntityIds,
+        std::vector<PowerEntityStateResidencyResult>* _aidl_return) {
+    (void)in_powerEntityIds;
+    (void)_aidl_return;
+    return ndk::ScopedAStatus::ok();
+}
+ndk::ScopedAStatus PowerStats::getRailInfo(std::vector<RailInfo>* _aidl_return) {
+    (void)_aidl_return;
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace powerstats
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl
diff --git a/powerstats/aidl/default/PowerStats.h b/powerstats/aidl/default/PowerStats.h
new file mode 100644
index 0000000..392d1e6
--- /dev/null
+++ b/powerstats/aidl/default/PowerStats.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/powerstats/BnPowerStats.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace powerstats {
+
+class PowerStats : public BnPowerStats {
+  public:
+    PowerStats() = default;
+    ndk::ScopedAStatus getEnergyData(const std::vector<int32_t>& in_railIndices,
+                                     std::vector<EnergyData>* _aidl_return) override;
+    ndk::ScopedAStatus getPowerEntityInfo(std::vector<PowerEntityInfo>* _aidl_return) override;
+    ndk::ScopedAStatus getPowerEntityStateInfo(
+            const std::vector<int32_t>& in_powerEntityIds,
+            std::vector<PowerEntityStateSpace>* _aidl_return) override;
+    ndk::ScopedAStatus getPowerEntityStateResidencyData(
+            const std::vector<int32_t>& in_powerEntityIds,
+            std::vector<PowerEntityStateResidencyResult>* _aidl_return) override;
+    ndk::ScopedAStatus getRailInfo(std::vector<RailInfo>* _aidl_return) override;
+};
+
+}  // namespace powerstats
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl
diff --git a/powerstats/aidl/default/main.cpp b/powerstats/aidl/default/main.cpp
new file mode 100644
index 0000000..1496805
--- /dev/null
+++ b/powerstats/aidl/default/main.cpp
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2020 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 "PowerStats.h"
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+
+using aidl::android::hardware::powerstats::PowerStats;
+
+int main() {
+    ABinderProcess_setThreadPoolMaxThreadCount(0);
+    std::shared_ptr<PowerStats> p = ndk::SharedRefBase::make<PowerStats>();
+
+    const std::string instance = std::string() + PowerStats::descriptor + "/default";
+    binder_status_t status = AServiceManager_addService(p->asBinder().get(), instance.c_str());
+    CHECK(status == STATUS_OK);
+
+    ABinderProcess_joinThreadPool();
+    return EXIT_FAILURE;  // should not reach
+}
diff --git a/powerstats/aidl/default/powerstats-default.rc b/powerstats/aidl/default/powerstats-default.rc
new file mode 100644
index 0000000..9b04be3
--- /dev/null
+++ b/powerstats/aidl/default/powerstats-default.rc
@@ -0,0 +1,4 @@
+service vendor.powerstats-default /vendor/bin/hw/android.hardware.powerstats-service.example
+    class hal
+    user system
+    group system
diff --git a/powerstats/aidl/default/powerstats-default.xml b/powerstats/aidl/default/powerstats-default.xml
new file mode 100644
index 0000000..e07513d
--- /dev/null
+++ b/powerstats/aidl/default/powerstats-default.xml
@@ -0,0 +1,6 @@
+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.powerstats</name>
+        <fqname>IPowerStats/default</fqname>
+    </hal>
+</manifest>