Move power HAL interactions to PowerManagerService.

This refactoring sets the stage for a follow-on change that
will make use additional functions of the power HAL.

Moved functionality from android.os.Power into PowerManagerService.
None of these functions make sense being called outside of the
system server.  Moving them to the PowerManagerService makes it
easier to ensure that the power HAL is initialized exactly once.

Similarly, moved ShutdownThread out of the policy package and into
the services package where it can tie into the PowerManagerService
as needed.

Bug: 6435382
Change-Id: I958241bb124fb4410d96f5d5eb00ed68d60b29e5

Author: Jeff Brown

core/java/android/os/Power.java

@@ -197,7 +197,31 @@ public class PowerManager
      * Does not work with PARTIAL_WAKE_LOCKs.
      */
     public static final int ON_AFTER_RELEASE = 0x20000000;
-    
+
+    /**
+     * Brightness value to use when battery is low.
+     * @hide
+     */
+    public static final int BRIGHTNESS_LOW_BATTERY = 10;
+
+    /**
+     * Brightness value for fully on.
+     * @hide
+     */
+    public static final int BRIGHTNESS_ON = 255;
+
+    /**
+     * Brightness value for dim backlight.
+     * @hide
+     */
+    public static final int BRIGHTNESS_DIM = 20;
+
+    /**
+     * Brightness value for fully off.
+     * @hide
+     */
+    public static final int BRIGHTNESS_OFF = 0;
+
     /**
      * Class lets you say that you need to have the device on.
      * <p>

core/java/android/os/PowerManager.java

@@ -397,6 +397,9 @@ public FakeWindow addFakeWindow(Looper looper,
          * Creates an input channel that will receive all input from the input dispatcher.
          */
         public InputChannel monitorInput(String name);
+
+        public void shutdown();
+        public void rebootSafeMode();
     }
 
     /**

core/java/android/view/WindowManagerPolicy.java

@@ -66,7 +66,6 @@ LOCAL_SRC_FILES:= \
 	android_os_MessageQueue.cpp \
 	android_os_ParcelFileDescriptor.cpp \
 	android_os_Parcel.cpp \
-	android_os_Power.cpp \
 	android_os_StatFs.cpp \
 	android_os_SystemClock.cpp \
 	android_os_SystemProperties.cpp \
@@ -217,8 +216,7 @@ LOCAL_SHARED_LIBRARIES := \
 	libjpeg \
 	libusbhost \
 	libharfbuzz \
-	libz \
-	libsuspend \
+	libz
 
 ifeq ($(USE_OPENGL_RENDERER),true)
 	LOCAL_SHARED_LIBRARIES += libhwui

core/jni/Android.mk

@@ -133,7 +133,6 @@ extern int register_android_os_Debug(JNIEnv* env);
 extern int register_android_os_MessageQueue(JNIEnv* env);
 extern int register_android_os_Parcel(JNIEnv* env);
 extern int register_android_os_ParcelFileDescriptor(JNIEnv *env);
-extern int register_android_os_Power(JNIEnv *env);
 extern int register_android_os_StatFs(JNIEnv *env);
 extern int register_android_os_SystemProperties(JNIEnv *env);
 extern int register_android_os_SystemClock(JNIEnv* env);
@@ -1147,7 +1146,6 @@ static const RegJNIRec gRegJNI[] = {
     REG_JNI(register_android_os_FileUtils),
     REG_JNI(register_android_os_MessageQueue),
     REG_JNI(register_android_os_ParcelFileDescriptor),
-    REG_JNI(register_android_os_Power),
     REG_JNI(register_android_os_StatFs),
     REG_JNI(register_android_os_Trace),
     REG_JNI(register_android_os_UEventObserver),

core/jni/AndroidRuntime.cpp

@@ -31,8 +31,8 @@
 public class BrightnessController implements ToggleSlider.Listener {
     private static final String TAG = "StatusBar.BrightnessController";
 
-    private static final int MINIMUM_BACKLIGHT = android.os.Power.BRIGHTNESS_DIM;
-    private static final int MAXIMUM_BACKLIGHT = android.os.Power.BRIGHTNESS_ON;
+    private static final int MINIMUM_BACKLIGHT = android.os.PowerManager.BRIGHTNESS_DIM;
+    private static final int MAXIMUM_BACKLIGHT = android.os.PowerManager.BRIGHTNESS_ON;
 
     private Context mContext;
     private ToggleSlider mControl;

core/jni/android_os_Power.cpp

@@ -16,14 +16,12 @@
 
 package com.android.internal.policy.impl;
 
-import com.android.internal.app.ShutdownThread;
 import com.android.internal.telephony.TelephonyIntents;
 import com.android.internal.telephony.TelephonyProperties;
 import com.android.internal.R;
 
 import android.app.ActivityManagerNative;
 import android.app.AlertDialog;
-import android.app.admin.DevicePolicyManager;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.DialogInterface;
@@ -48,6 +46,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowManager;
+import android.view.WindowManagerPolicy.WindowManagerFuncs;
 import android.widget.AdapterView;
 import android.widget.BaseAdapter;
 import android.widget.ImageView;
@@ -68,6 +67,7 @@ class GlobalActions implements DialogInterface.OnDismissListener, DialogInterfac
     private static final boolean SHOW_SILENT_TOGGLE = true;
 
     private final Context mContext;
+    private final WindowManagerFuncs mWindowManagerFuncs;
     private final AudioManager mAudioManager;
 
     private ArrayList<Action> mItems;
@@ -88,8 +88,9 @@ class GlobalActions implements DialogInterface.OnDismissListener, DialogInterfac
     /**
      * @param context everything needs a context :(
      */
-    public GlobalActions(Context context) {
+    public GlobalActions(Context context, WindowManagerFuncs windowManagerFuncs) {
         mContext = context;
+        mWindowManagerFuncs = windowManagerFuncs;
         mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
 
         // receive broadcasts
@@ -186,11 +187,11 @@ public boolean showBeforeProvisioning() {
 
                 public void onPress() {
                     // shutdown by making sure radio and power are handled accordingly.
-                    ShutdownThread.shutdown(mContext, true);
+                    mWindowManagerFuncs.shutdown();
                 }
 
                 public boolean onLongPress() {
-                    ShutdownThread.rebootSafeMode(mContext, true);
+                    mWindowManagerFuncs.rebootSafeMode();
                     return true;
                 }