aidl: light: Initial stub service

* Made with aidl-gen

Change-Id: I517ddd2222cb937c02298d0972b8abf0ffc24fd6

aidl/light/Android.bp

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+//
+// Copyright (C) 2021 The LineageOS Project
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+cc_binary {
+    name: "android.hardware.light-service",
+    relative_install_path: "hw",
+    init_rc: ["android.hardware.light-service.rc"],
+    vintf_fragments: ["android.hardware.light-service.xml"],
+    srcs: [
+        "Lights.cpp",
+        "service.cpp",
+    ],
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "android.hardware.light-V1-ndk_platform",
+    ],
+    vendor: true,
+}

aidl/light/Lights.cpp

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+/*
+ * Copyright (C) 2021 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "Lights.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace light {
+
+ndk::ScopedAStatus Lights::setLightState(int32_t /*id*/, const HwLightState& /*state*/) {
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
+ndk::ScopedAStatus Lights::getLights(std::vector<HwLight> */*_aidl_return*/) {
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
+} // namespace light
+} // namespace hardware
+} // namespace android
+} // namespace aidl

aidl/light/Lights.h

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+/*
+ * Copyright (C) 2021 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/light/BnLights.h>
+
+using ::aidl::android::hardware::light::HwLightState;
+using ::aidl::android::hardware::light::HwLight;
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace light {
+
+class Lights : public BnLights {
+public:
+    ndk::ScopedAStatus setLightState(int32_t id, const HwLightState& state) override;
+    ndk::ScopedAStatus getLights(std::vector<HwLight> *_aidl_return) override;
+};
+
+} // namespace light
+} // namespace hardware
+} // namespace android
+} // namespace aidl

aidl/light/android.hardware.light-service.rc

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+service vendor.light-default /vendor/bin/hw/android.hardware.light-service
+    class hal
+    user nobody
+    group nobody
+    shutdown critical

aidl/light/android.hardware.light-service.xml

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+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.light</name>
+        <fqname>ILights/default</fqname>
+    </hal>
+</manifest>

aidl/light/service.cpp

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+/*
+ * Copyright (C) 2021 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "Lights.h"
+
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <android-base/logging.h>
+
+using ::aidl::android::hardware::light::Lights;
+
+int main() {
+    ABinderProcess_setThreadPoolMaxThreadCount(0);
+    std::shared_ptr<Lights> lights = ndk::SharedRefBase::make<Lights>();
+
+    const std::string instance = std::string() + Lights::descriptor + "/default";
+    binder_status_t status = AServiceManager_addService(lights->asBinder().get(), instance.c_str());
+    CHECK(status == STATUS_OK);
+
+    ABinderProcess_joinThreadPool();
+    return EXIT_FAILURE; // should not reach
+}