LED: Add an option to adjust Min Backlight

Signed-off-by: sunilpaulmathew <sunil.kde@gmail.com>
SmartPack · Sep 5, 2018 · 9f52cc3 · 9f52cc3
1 parent 1f8c0f5
commit 9f52cc3
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Showing 3 changed files with 52 additions and 1 deletion.
diff --git a/app/src/main/java/com/grarak/kerneladiutor/fragments/kernel/LEDFragment.java b/app/src/main/java/com/grarak/kerneladiutor/fragments/kernel/LEDFragment.java
@@ -52,6 +52,9 @@ protected void addItems(List<RecyclerViewItem> items) {
         if (mLED.hasdisplaybacklight()) {
             displaybacklightInit(items);
         }
+        if (mLED.hasBacklightMin()) {
+            BacklightMinInit(items);
+        }
         if (mLED.hascharginglight()) {
             charginglightInit(items);
         }
@@ -143,6 +146,40 @@ public void onMove(SeekBarView seekBarView, int position, String value) {
             items.add(displaybacklight);
     }
 
+    private void BacklightMinInit(List<RecyclerViewItem> items) {
+	SeekBarView BacklightMin = new SeekBarView();
+	BacklightMin.setTitle(getString(R.string.backlight_min));
+	if (mLED.getdisplaybacklight() >= 256) {
+            BacklightMin.setMax(1275);
+            BacklightMin.setOffset(25);
+            BacklightMin.setProgress(mLED.getBacklightMin() / 25 );
+            BacklightMin.setOnSeekBarListener(new SeekBarView.OnSeekBarListener() {
+		@Override
+		public void onStop(SeekBarView seekBarView, int position, String value) {
+			mLED.setBacklightMin((position * 25), getActivity());
+		}
+		@Override
+		public void onMove(SeekBarView seekBarView, int position, String value) {
+		}
+            });
+            items.add(BacklightMin);
+	} else {
+            BacklightMin.setMax(255);
+            BacklightMin.setOffset(5);
+            BacklightMin.setProgress(mLED.getBacklightMin() / 5 );
+            BacklightMin.setOnSeekBarListener(new SeekBarView.OnSeekBarListener() {
+		@Override
+		public void onStop(SeekBarView seekBarView, int position, String value) {
+			mLED.setBacklightMin((position * 5), getActivity());
+		}
+		@Override
+		public void onMove(SeekBarView seekBarView, int position, String value) {
+		}
+            });
+            items.add(BacklightMin);
+	}
+    }
+
     private void charginglightInit(List<RecyclerViewItem> items) {
 	SwitchView charginglight = new SwitchView();
 	charginglight.setTitle(getString(R.string.charging_light));

diff --git a/app/src/main/java/com/grarak/kerneladiutor/utils/kernel/led/LED.java b/app/src/main/java/com/grarak/kerneladiutor/utils/kernel/led/LED.java
@@ -51,6 +51,7 @@ public static LED getInstance() {
     private static final String GREEN_RATE = "/sys/class/leds/green/rate";
 
     private static final String DISPLAY_BACKLIGHT = "/sys/class/leds/lcd-backlight/max_brightness";
+    private static final String BACKLIGHT_MIN = "/sys/module/mdss_fb/parameters/backlight_min";
     private static final String CHARGING_LIGHT = "/sys/class/leds/charging/max_brightness";
 
     private static final String LED_FADE = "/sys/class/sec/led/led_fade";
@@ -162,6 +163,18 @@ public static boolean hasdisplaybacklight() {
         return Utils.existFile(DISPLAY_BACKLIGHT);
     }
 
+    public void setBacklightMin(int value, Context context) {
+        run(Control.write(String.valueOf(value), BACKLIGHT_MIN), BACKLIGHT_MIN, context);
+    }
+
+    public static int getBacklightMin() {
+        return Utils.strToInt(Utils.readFile(BACKLIGHT_MIN));
+    }
+
+    public static boolean hasBacklightMin() {
+        return Utils.existFile(BACKLIGHT_MIN);
+    }
+
     public void enablescharginglight(boolean enable, Context context) {
         run(Control.write(enable ? "0" : "255", CHARGING_LIGHT), CHARGING_LIGHT, context);
     }
@@ -175,7 +188,7 @@ public boolean hascharginglight() {
     }
 
     public boolean supported() {
-        return hasFade() || hasLEDFade() || hasdisplaybacklight() ||  hascharginglight() || hasIntensity() || hasSpeed() || Sec.supported();
+        return hasFade() || hasLEDFade() || hasdisplaybacklight() || hasBacklightMin() || hascharginglight() || hasIntensity() || hasSpeed() || Sec.supported();
     }
 
     private void run(String command, String id, Context context) {

diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
@@ -674,6 +674,7 @@
     <string name="power_suspend_state">Power Suspend State</string>
     <string name="power_suspend_state_summary">Kernel power management driver when screen is off. Better battery savings if enabled. Note: You can only change this setting if Power Suspend Mode is in User Mode.</string>
     <string name="display_backlight">Adjust Maximum Backlight</string>
+    <string name="backlight_min">Adjust Minimum Backlight</string>
     <string name="charging_light">Disable Charging Light</string>
     <string name="charging_light_summary">Charging Light will be disabled if this switch is enabled.</string>
     <string name="network">Network</string>