Add LteOnCdmaDevice system property.

Provide a system property which may be
optionally set at build time.

Change-Id: I253ff0df7c8f8c5627c775fb0cff2cb831157eed

Author: Wink Saville

telephony/java/com/android/internal/telephony/BaseCommands.java

@@ -23,7 +23,6 @@
 import android.os.Handler;
 import android.os.AsyncResult;
 import android.os.SystemProperties;
-import android.util.Config;
 import android.util.Log;
 
 import java.io.FileInputStream;
@@ -691,7 +690,7 @@ protected void setRadioState(RadioState newState) {
         RadioState oldState;
 
         synchronized (mStateMonitor) {
-            if (Config.LOGV) {
+            if (false) {
                 Log.v(LOG_TAG, "setRadioState old: " + mState
                     + " new " + newState);
             }
@@ -858,22 +857,28 @@ public int getLteOnCdmaMode() {
      */
     public static int getLteOnCdmaModeStatic() {
         int retVal;
-        String productType;
-
-        Matcher matcher = sProductTypePattern.matcher(sKernelCmdLine);
-        if (matcher.find()) {
-            productType = matcher.group(1);
-            if (sLteOnCdmaProductType.equals(productType)) {
-                retVal = Phone.LTE_ON_CDMA_TRUE;
+        int curVal;
+        String productType = "";
+
+        curVal = SystemProperties.getInt(TelephonyProperties.PROPERTY_LTE_ON_CDMA_DEVICE,
+                    Phone.LTE_ON_CDMA_UNKNOWN);
+        retVal = curVal;
+        if (retVal == Phone.LTE_ON_CDMA_UNKNOWN) {
+            Matcher matcher = sProductTypePattern.matcher(sKernelCmdLine);
+            if (matcher.find()) {
+                productType = matcher.group(1);
+                if (sLteOnCdmaProductType.equals(productType)) {
+                    retVal = Phone.LTE_ON_CDMA_TRUE;
+                } else {
+                    retVal = Phone.LTE_ON_CDMA_FALSE;
+                }
             } else {
                 retVal = Phone.LTE_ON_CDMA_FALSE;
             }
-        } else {
-            retVal = Phone.LTE_ON_CDMA_FALSE;
-            productType = "";
         }
 
-        Log.d(LOG_TAG, "getLteOnCdmaMode=" + retVal + " product_type='" + productType +
+        Log.d(LOG_TAG, "getLteOnCdmaMode=" + retVal + " curVal=" + curVal +
+                " product_type='" + productType +
                 "' lteOnCdmaProductType='" + sLteOnCdmaProductType + "'");
         return retVal;
     }

telephony/java/com/android/internal/telephony/TelephonyProperties.java

@@ -79,6 +79,15 @@ public interface TelephonyProperties
      */
     static final String PROPERTY_LTE_ON_CDMA_PRODUCT_TYPE = "telephony.lteOnCdmaProductType";
 
+    /**
+     * The contents of this property is the one of {@link Phone#LTE_ON_CDMA_TRUE} or
+     * {@link Phone#LTE_ON_CDMA_FALSE}. If absent the value will assumed to be false
+     * and the {@see #PROPERTY_LTE_ON_CDMA_PRODUCT_TYPE} will be used to determine its
+     * final value which could also be {@link Phone#LTE_ON_CDMA_FALSE}.
+     * {@see BaseCommands#getLteOnCdmaMode()}
+     */
+    static final String PROPERTY_LTE_ON_CDMA_DEVICE = "telephony.lteOnCdmaDevice";
+
     static final String CURRENT_ACTIVE_PHONE = "gsm.current.phone-type";
 
     //****** SIM Card