Make battery shutdown temperature configurable

Bug 7079455

Change-Id: I448f21231bf0548ef975f99482576acb24a1a70e

Author: Brian Muramatsu

core/res/res/values/config.xml

@@ -471,6 +471,9 @@
          Also, the battery stats are flushed to disk when we hit this level.  -->
     <integer name="config_criticalBatteryWarningLevel">4</integer>
 
+    <!-- Shutdown if the battery temperature exceeds (this value * 0.1) Celsius. -->
+    <integer name="config_shutdownBatteryTemperature">680</integer>
+
     <!-- Display low battery warning when battery level dips to this value -->
     <!-- Display low battery warning when battery level dips to this value -->
     <integer name="config_lowBatteryWarningLevel">15</integer>

core/res/res/values/public.xml

@@ -1544,6 +1544,7 @@
   <java-symbol type="integer" name="config_screenBrightnessSettingMaximum" />
   <java-symbol type="integer" name="config_screenBrightnessSettingDefault" />
   <java-symbol type="integer" name="config_screenBrightnessDim" />
+  <java-symbol type="integer" name="config_shutdownBatteryTemperature" />
   <java-symbol type="integer" name="config_virtualKeyQuietTimeMillis" />
   <java-symbol type="layout" name="am_compat_mode_dialog" />
   <java-symbol type="layout" name="launch_warning" />

services/java/com/android/server/BatteryService.java

@@ -116,6 +116,7 @@ public class BatteryService extends Binder {
 
     private int mLowBatteryWarningLevel;
     private int mLowBatteryCloseWarningLevel;
+    private int mShutdownBatteryTemperature;
 
     private int mPlugType;
     private int mLastPlugType = -1; // Extra state so we can detect first run
@@ -138,6 +139,8 @@ public BatteryService(Context context, LightsService lights) {
                 com.android.internal.R.integer.config_lowBatteryWarningLevel);
         mLowBatteryCloseWarningLevel = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_lowBatteryCloseWarningLevel);
+        mShutdownBatteryTemperature = mContext.getResources().getInteger(
+                com.android.internal.R.integer.config_shutdownBatteryTemperature);
 
         mPowerSupplyObserver.startObserving("SUBSYSTEM=power_supply");
 
@@ -228,9 +231,11 @@ private final void shutdownIfNoPower() {
     }
 
     private final void shutdownIfOverTemp() {
-        // shut down gracefully if temperature is too high (> 68.0C)
-        // wait until the system has booted before attempting to display the shutdown dialog.
-        if (mBatteryTemperature > 680 && ActivityManagerNative.isSystemReady()) {
+        // shut down gracefully if temperature is too high (> 68.0C by default)
+        // wait until the system has booted before attempting to display the
+        // shutdown dialog.
+        if (mBatteryTemperature > mShutdownBatteryTemperature
+                && ActivityManagerNative.isSystemReady()) {
             Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN);
             intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false);
             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
@@ -259,7 +264,7 @@ private void processValues() {
         } else {
             mPlugType = BATTERY_PLUGGED_NONE;
         }
-        
+
         // Let the battery stats keep track of the current level.
         try {
             mBatteryStats.setBatteryState(mBatteryStatus, mBatteryHealth,
@@ -268,7 +273,7 @@ private void processValues() {
         } catch (RemoteException e) {
             // Should never happen.
         }
-        
+
         shutdownIfNoPower();
         shutdownIfOverTemp();