PowerWidget: Re-enable LTE button.

- Implement toggleLTE,
  from CM 10.0: I3f7521f5ec4e9f9106c58afd4d5b10c7086b55fd.
- Support all LTE network modes defined in RILConstants and
  com.android.internal.telephony.Phone.
- Cleanup: Remove unused LTE_MODE, restrict state change to updateState.
- Also use Settings.Global.getInt() for PREFERRED_NETWORK_MODE.

Change-Id: I43bb2491d650d641d243d3cb67ee80bc7c8f5cdf

2 files changed, 17 insertions, 0 deletions

diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index d486529..2f80d39 100755
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -607,6 +607,17 @@ public class TelephonyManager {
         }
     }
 
+    /**
+     * {@hide}
+     */
+    public void toggleLTE(boolean on) {
+        try {
+            getITelephony().toggleLTE(on);
+        } catch (RemoteException e) {
+            //Silently fail
+        }
+    }
+
     /** Unknown network class. {@hide} */
     public static final int NETWORK_CLASS_UNKNOWN = 0;
     /** Class of broadly defined "2G" networks. {@hide} */
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 11e01b9..9d1cc1d 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -45,6 +45,12 @@ interface ITelephony {
     void call(String number);
 
     /**
+     * Toggle between 3G and LTE (NT_MODE_CDMA, NT_MODE_GLOBAL)
+     * @param boolean to turn on and off LTE
+     */
+    void toggleLTE(boolean on);
+
+    /**
      * If there is currently a call in progress, show the call screen.
      * The DTMF dialpad may or may not be visible initially, depending on
      * whether it was up when the user last exited the InCallScreen.