Merge "Add DataConnection#isEmergency and use in trySetupData." into ics-mr0

Author: Wink Saville

telephony/java/com/android/internal/telephony/DataConnectionTracker.java

@@ -676,6 +676,15 @@ public boolean getAnyDataEnabled() {
         return result;
     }
 
+    protected boolean isEmergency() {
+        final boolean result;
+        synchronized (mDataEnabledLock) {
+            result = mPhone.isInEcm() || mPhone.isInEmergencyCall();
+        }
+        log("isEmergency: result=" + result);
+        return result;
+    }
+
     protected int apnTypeToId(String type) {
         if (TextUtils.equals(type, Phone.APN_TYPE_DEFAULT)) {
             return APN_DEFAULT_ID;
@@ -981,17 +990,14 @@ public boolean setInternalDataEnabled(boolean enable) {
 
     protected void onSetInternalDataEnabled(boolean enabled) {
         synchronized (mDataEnabledLock) {
-            final boolean prevEnabled = getAnyDataEnabled();
-            if (mInternalDataEnabled != enabled) {
-                mInternalDataEnabled = enabled;
-                if (prevEnabled != getAnyDataEnabled()) {
-                    if (!prevEnabled) {
-                        resetAllRetryCounts();
-                        onTrySetupData(Phone.REASON_DATA_ENABLED);
-                    } else {
-                        cleanUpAllConnections(null);
-                    }
-                }
+            mInternalDataEnabled = enabled;
+            if (enabled) {
+                log("onSetInternalDataEnabled: changed to enabled, try to setup data call");
+                resetAllRetryCounts();
+                onTrySetupData(Phone.REASON_DATA_ENABLED);
+            } else {
+                log("onSetInternalDataEnabled: changed to disabled, cleanUpAllConnections");
+                cleanUpAllConnections(null);
             }
         }
     }

telephony/java/com/android/internal/telephony/PhoneBase.java

@@ -832,6 +832,22 @@ public void notifyOtaspChanged(int otaspMode) {
         mNotifier.notifyOtaspChanged(this, otaspMode);
     }
 
+    /**
+     * @return true if a mobile originating emergency call is active
+     */
+    public boolean isInEmergencyCall() {
+        return false;
+    }
+
+    /**
+     * @return true if we are in the emergency call back mode. This is a period where
+     * the phone should be using as little power as possible and be ready to receive an
+     * incoming call from the emergency operator.
+     */
+    public boolean isInEcm() {
+        return false;
+    }
+
     public abstract String getPhoneName();
 
     public abstract int getPhoneType();

telephony/java/com/android/internal/telephony/cdma/CDMAPhone.java

@@ -848,6 +848,14 @@ void notifyUnknownConnection() {
         mUnknownConnectionRegistrants.notifyResult(this);
     }
 
+    public boolean isInEmergencyCall() {
+        return mCT.isInEmergencyCall();
+    }
+
+    public boolean isInEcm() {
+        return mIsPhoneInEcmState;
+    }
+
     void sendEmergencyCallbackModeChange(){
         //Send an Intent
         Intent intent = new Intent(TelephonyIntents.ACTION_EMERGENCY_CALLBACK_MODE_CHANGED);

telephony/java/com/android/internal/telephony/cdma/CdmaDataConnectionTracker.java

@@ -248,7 +248,7 @@ private boolean trySetupData(String reason) {
         boolean desiredPowerState = mCdmaPhone.mSST.getDesiredPowerState();
 
         if ((mState == State.IDLE || mState == State.SCANNING) &&
-                isDataAllowed() && getAnyDataEnabled()) {
+                isDataAllowed() && getAnyDataEnabled() && !isEmergency()) {
             boolean retValue = setupData(reason);
             notifyOffApnsOfAvailability(reason);
             return retValue;

telephony/java/com/android/internal/telephony/gsm/GsmDataConnectionTracker.java

@@ -686,7 +686,7 @@ private boolean trySetupData(ApnContext apnContext) {
         boolean desiredPowerState = mPhone.getServiceStateTracker().getDesiredPowerState();
 
         if ((apnContext.getState() == State.IDLE || apnContext.getState() == State.SCANNING) &&
-                isDataAllowed(apnContext) && getAnyDataEnabled()) {
+                isDataAllowed(apnContext) && getAnyDataEnabled() && !isEmergency()) {
 
             if (apnContext.getState() == State.IDLE) {
                 ArrayList<ApnSetting> waitingApns = buildWaitingApns(apnContext.getApnType());