Expose the Radio HAL Version for Test Purposes

To properly check that values are being populated by
devices supporting newer HALs, it is necessary to
avoid enforcement on devices using older HAL versions.
Exposing the HAL version for test purposes allows that.

Bug: 122834594
Test: compilation
Change-Id: Idadc2fc8dd4f7b4765af90d92b62eea3e017a843

api/test-current.txt

@@ -1479,6 +1479,7 @@ package android.telephony {
 
   public class TelephonyManager {
     method public int getCarrierIdListVersion();
+    method public android.util.Pair<java.lang.Integer,java.lang.Integer> getRadioHalVersion();
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void refreshUiccProfile();
     method public void setCarrierTestOverride(String, String, String, String, String, String, String);
     field public static final int UNKNOWN_CARRIER_ID_LIST_VERSION = -1; // 0xffffffff

telephony/java/android/telephony/TelephonyManager.java

@@ -10310,4 +10310,28 @@ public class TelephonyManager {
         }
         return false;
     }
+
+    /**
+     * Retrieve the Radio HAL Version for this device.
+     *
+     * Get the HAL version for the IRadio interface for test purposes.
+     *
+     * @return a Pair of (major version, minor version) or (-1,-1) if unknown.
+     *
+     * @hide
+     */
+    @TestApi
+    public Pair<Integer, Integer> getRadioHalVersion() {
+        try {
+            ITelephony service = getITelephony();
+            if (service != null) {
+                int version = service.getRadioHalVersion();
+                if (version == -1) return new Pair<Integer, Integer>(-1, -1);
+                return new Pair<Integer, Integer>(version / 100, version % 100);
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "getRadioHalVersion() RemoteException", e);
+        }
+        return new Pair<Integer, Integer>(-1, -1);
+    }
 }

telephony/java/com/android/internal/telephony/ITelephony.aidl

@@ -1852,4 +1852,9 @@ interface ITelephony {
      * Get the mapping from logical slots to physical slots.
      */
     int[] getSlotsMapping();
+
+    /**
+     * Get the IRadio HAL Version encoded as 100 * MAJOR_VERSION + MINOR_VERSION or -1 if unknown
+     */
+     int getRadioHalVersion();
 }