From 05894aa2d24fd1cf7d4987d6a3a42356751c7fa8 Mon Sep 17 00:00:00 2001
From: Oleg Blinnikov <olb@google.com>
Date: Mon, 8 Jul 2024 14:59:48 +0000
Subject: [PATCH] Get brightness adb command

Change-Id: I78dd79dfc49732da65c9af02fd4357598698b996
Bug: 349946564
Test: atest BrightnessTest
Flag: NONE not needed for the new adb command used in cts test
---
 .../display/DisplayManagerShellCommand.java   | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/services/core/java/com/android/server/display/DisplayManagerShellCommand.java b/services/core/java/com/android/server/display/DisplayManagerShellCommand.java
index d973b71366b1..2fea5dc7234d 100644
--- a/services/core/java/com/android/server/display/DisplayManagerShellCommand.java
+++ b/services/core/java/com/android/server/display/DisplayManagerShellCommand.java
@@ -62,6 +62,8 @@ public int onCommand(String cmd) {
                 return showNotification();
             case "cancel-notifications":
                 return cancelNotifications();
+            case "get-brightness":
+                return getBrightness();
             case "set-brightness":
                 return setBrightness();
             case "reset-brightness-configuration":
@@ -309,6 +311,25 @@ private int cancelNotifications() {
         return 0;
     }
 
+    private int getBrightness() {
+        String displayIdString = getNextArg();
+        if (displayIdString == null) {
+            getErrPrintWriter().println("Error: no display id specified");
+            return 1;
+        }
+        int displayId;
+        try {
+            displayId = Integer.parseInt(displayIdString);
+        } catch (NumberFormatException e) {
+            getErrPrintWriter().println("Error: invalid displayId=" + displayIdString + " not int");
+            return 1;
+        }
+        final Context context = mService.getContext();
+        final DisplayManager dm = context.getSystemService(DisplayManager.class);
+        getOutPrintWriter().println(dm.getBrightness(displayId));
+        return 0;
+    }
+
     private int setBrightness() {
         String brightnessText = getNextArg();
         if (brightnessText == null) {