Add a huawei auto-brightness rro using Mate 9's stock settings
diff --git a/Huawei/Backlight/Android.mk b/Huawei/Backlight/Android.mk
new file mode 100644
index 0000000..f254751
--- /dev/null
+++ b/Huawei/Backlight/Android.mk
@@ -0,0 +1,7 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := optional
+LOCAL_PACKAGE_NAME := treble-overlay-huawei-backlight
+LOCAL_MODULE_PATH := $(TARGET_OUT)/overlay
+LOCAL_IS_RUNTIME_RESOURCE_OVERLAY := true
+include $(BUILD_PACKAGE)
diff --git a/Huawei/Backlight/AndroidManifest.xml b/Huawei/Backlight/AndroidManifest.xml
new file mode 100644
index 0000000..6dbe1ff
--- /dev/null
+++ b/Huawei/Backlight/AndroidManifest.xml
@@ -0,0 +1,10 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="me.phh.treble.overlay.huawei.backlight"
+ android:versionCode="1"
+ android:versionName="1.0">
+ <overlay android:targetPackage="android"
+ android:requiredSystemPropertyName="persist.sys.overlay.huawei.backlight"
+ android:requiredSystemPropertyValue="true"
+ android:priority="4"
+ android:isStatic="true" />
+</manifest>
diff --git a/Huawei/Backlight/res/values/config.xml b/Huawei/Backlight/res/values/config.xml
new file mode 100644
index 0000000..bc03d47
--- /dev/null
+++ b/Huawei/Backlight/res/values/config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <bool name="config_autoBrightnessResetAmbientLuxAfterWarmUp">true</bool>
+ <bool name="config_automatic_brightness_available">true</bool>
+ <integer name="config_autoBrightnessAmbientLightHorizon">10000</integer>
+ <integer name="config_autoBrightnessBrighteningLightDebounce">4000</integer>
+ <integer name="config_autoBrightnessDarkeningLightDebounce">8000</integer>
+ <integer name="config_autoBrightnessInitialLightSensorRate">-1</integer>
+ <integer name="config_autoBrightnessLightSensorRate">300</integer>
+ <integer name="config_brightness_ramp_rate_fast">200</integer>
+ <integer name="config_brightness_ramp_rate_slow">40</integer>
+ <integer-array name="config_autoBrightnessLcdBacklightValues">
+ <item>6</item>
+ <item>47</item>
+ <item>150</item>
+ <item>180</item>
+ <item>250</item>
+ <item>255</item>
+ </integer-array>
+ <integer-array name="config_autoBrightnessLevels">
+ <item>8</item>
+ <item>55</item>
+ <item>350</item>
+ <item>1600</item>
+ <item>2550</item>
+ </integer-array>
+</resources>