Add lightsctl-huawei to test huawei brightness control

cmds/Android.bp

@@ -139,3 +139,15 @@ cc_binary {
 		"libprotobuf-cpp-lite"
 	],
 }
+
+cc_binary {
+	name: "lightsctl-huawei",
+	srcs: [
+		"lightsctl-huawei.cpp",
+	],
+	shared_libs: [
+		"vendor.huawei.hardware.light@2.0",
+		"libutils",
+		"libhidlbase",
+	],
+}

cmds/lightsctl-huawei.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+#include <vendor/huawei/hardware/light/2.0/IHwLight.h>
+#include <android/hardware/light/2.0/types.h>
+
+using ::vendor::huawei::hardware::light::V2_0::IHwLight;
+using ::android::sp;
+
+int main(int argc, char **argv) {
+	auto svc = IHwLight::getService();
+	svc->HWgetSupportedTypes([](auto types) {
+		for(const auto& type: types) {
+			std::cout << "Got type " << type << std::endl;
+		}
+	});
+
+
+	uint32_t a = (uint32_t)strtoll(argv[1], NULL, 10);
+	uint32_t b = (uint32_t)strtoll(argv[2], NULL, 10);
+	auto ret = svc->HWsetLightBrightness(a, b);
+	std::cout << "Set light brightness returned " << toString(ret) << std::endl;
+}