commit 3a74bd36f8af1a12353db8ddbc5227d33c2ce680
author Mike Lockwood <lockwood@android.com> Fri Aug 12 13:55:22 2011 -0700
committer Mike Lockwood <lockwood@google.com> Fri Feb 10 10:51:24 2012 -0800
tree 3f3de29d5d9014b8169d5d65b19d8c8e2b6bc1ee
parent 2395527c9bb1cdc3bcd3dfcbc8b72b90ed3e7080

Add headless mode for running the framework without the surface flinger

Enabled by setting system property ro.config.headless to 1
This will allow the framework to run without starting activities,
system UI and the keyguard.
Framework can still run services, content providers and broadcast receivers.

Signed-off-by: Mike Lockwood <lockwood@android.com>

Conflicts:

	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
	services/java/com/android/server/PowerManagerService.java
	services/java/com/android/server/am/ActivityManagerService.java

services/java/com/android/server/PowerManagerService.java

diff --git a/services/java/com/android/server/PowerManagerService.java b/services/java/com/android/server/PowerManagerService.java
index bb0ac3e..7974951 100644
--- a/services/java/com/android/server/PowerManagerService.java
+++ b/services/java/com/android/server/PowerManagerService.java
@@ -50,6 +50,7 @@
 import android.os.Process;
 import android.os.RemoteException;
 import android.os.SystemClock;
+import android.os.SystemProperties;
 import android.os.WorkSource;
 import android.provider.Settings;
 import android.util.EventLog;
@@ -176,6 +177,7 @@
 
     private boolean mDoneBooting = false;
     private boolean mBootCompleted = false;
+    private boolean mHeadless = false;
     private int mStayOnConditions = 0;
     private final int[] mBroadcastQueue = new int[] { -1, -1, -1 };
     private final int[] mBroadcastWhy = new int[3];
@@ -530,6 +532,7 @@
         mButtonLight = lights.getLight(LightsService.LIGHT_ID_BUTTONS);
         mKeyboardLight = lights.getLight(LightsService.LIGHT_ID_KEYBOARD);
         mAttentionLight = lights.getLight(LightsService.LIGHT_ID_ATTENTION);
+        mHeadless = "1".equals(SystemProperties.get("ro.config.headless", "0"));
 
         nativeInit();
         synchronized (mLocks) {
@@ -1894,9 +1897,11 @@
     }
 
     private void updateNativePowerStateLocked() {
-        nativeSetPowerState(
-                (mPowerState & SCREEN_ON_BIT) != 0,
-                (mPowerState & SCREEN_BRIGHT) == SCREEN_BRIGHT);
+        if (!mHeadless) {
+            nativeSetPowerState(
+                    (mPowerState & SCREEN_ON_BIT) != 0,
+                    (mPowerState & SCREEN_BRIGHT) == SCREEN_BRIGHT);
+        }
     }
 
     private int screenOffFinishedAnimatingLocked(int reason) {