2 files changed, 51 insertions, 0 deletions

diff --git a/services/java/com/android/server/power/Notifier.java b/services/java/com/android/server/power/Notifier.java
index 5e05693..d99d523 100644
--- a/services/java/com/android/server/power/Notifier.java
+++ b/services/java/com/android/server/power/Notifier.java
@@ -23,6 +23,10 @@ import android.app.ActivityManagerNative;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
+import android.media.AudioManager;
+import android.media.Ringtone;
+import android.media.RingtoneManager;
+import android.net.Uri;
 import android.os.BatteryStats;
 import android.os.Handler;
 import android.os.Looper;
@@ -32,6 +36,7 @@ import android.os.RemoteException;
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.os.WorkSource;
+import android.provider.Settings;
 import android.util.EventLog;
 import android.util.Slog;
 import android.view.WindowManagerPolicy;
@@ -64,6 +69,7 @@ final class Notifier {
 
     private static final int MSG_USER_ACTIVITY = 1;
     private static final int MSG_BROADCAST = 2;
+    private static final int MSG_WIRELESS_CHARGING_STARTED = 3;
 
     private final Object mLock = new Object();
 
@@ -312,6 +318,20 @@ final class Notifier {
         }
     }
 
+    /**
+     * Called when wireless charging has started so as to provide user feedback.
+     */
+    public void onWirelessChargingStarted() {
+        if (DEBUG) {
+            Slog.d(TAG, "onWirelessChargingStarted");
+        }
+
+        mSuspendBlocker.acquire();
+        Message msg = mHandler.obtainMessage(MSG_WIRELESS_CHARGING_STARTED);
+        msg.setAsynchronous(true);
+        mHandler.sendMessage(msg);
+    }
+
     private void updatePendingBroadcastLocked() {
         if (!mBroadcastInProgress
                 && mActualPowerState != POWER_STATE_UNKNOWN
@@ -473,6 +493,23 @@ final class Notifier {
         }
     };
 
+    private void playWirelessChargingStartedSound() {
+        final String soundPath = Settings.Global.getString(mContext.getContentResolver(),
+                Settings.Global.WIRELESS_CHARGING_STARTED_SOUND);
+        if (soundPath != null) {
+            final Uri soundUri = Uri.parse("file://" + soundPath);
+            if (soundUri != null) {
+                final Ringtone sfx = RingtoneManager.getRingtone(mContext, soundUri);
+                if (sfx != null) {
+                    sfx.setStreamType(AudioManager.STREAM_SYSTEM);
+                    sfx.play();
+                }
+            }
+        }
+
+        mSuspendBlocker.release();
+    }
+
     private final class NotifierHandler extends Handler {
         public NotifierHandler(Looper looper) {
             super(looper, null, true /*async*/);
@@ -488,6 +525,10 @@ final class Notifier {
                 case MSG_BROADCAST:
                     sendNextBroadcast();
                     break;
+
+                case MSG_WIRELESS_CHARGING_STARTED:
+                    playWirelessChargingStartedSound();
+                    break;
             }
         }
     }
diff --git a/services/java/com/android/server/power/PowerManagerService.java b/services/java/com/android/server/power/PowerManagerService.java
index 7f83c17..5a5d910 100644
--- a/services/java/com/android/server/power/PowerManagerService.java
+++ b/services/java/com/android/server/power/PowerManagerService.java
@@ -1150,6 +1150,16 @@ public final class PowerManagerService extends IPowerManager.Stub
                 }
                 userActivityNoUpdateLocked(
                         now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID);
+
+                // Tell the notifier whether wireless charging has started so that
+                // it can provide feedback to the user.  Refer to
+                // shouldWakeUpWhenPluggedOrUnpluggedLocked for justification of the
+                // heuristics used here.
+                if (!wasPowered && mIsPowered
+                        && mPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS
+                        && mBatteryLevel < WIRELESS_CHARGER_TURN_ON_BATTERY_LEVEL_LIMIT) {
+                    mNotifier.onWirelessChargingStarted();
+                }
             }
         }
     }