Add support for PSC of serving cell.

Bug: 2465036

2 files changed, 32 insertions, 3 deletions

diff --git a/telephony/java/android/telephony/gsm/GsmCellLocation.java b/telephony/java/android/telephony/gsm/GsmCellLocation.java
index fa1f985..c4204fa 100644
--- a/telephony/java/android/telephony/gsm/GsmCellLocation.java
+++ b/telephony/java/android/telephony/gsm/GsmCellLocation.java
@@ -25,6 +25,7 @@ import android.telephony.CellLocation;
 public class GsmCellLocation extends CellLocation {
     private int mLac;
     private int mCid;
+    private int mPsc;
 
     /**
      * Empty constructor.  Initializes the LAC and CID to -1.
@@ -32,6 +33,7 @@ public class GsmCellLocation extends CellLocation {
     public GsmCellLocation() {
         mLac = -1;
         mCid = -1;
+        mPsc = -1;
     }
 
     /**
@@ -40,6 +42,7 @@ public class GsmCellLocation extends CellLocation {
     public GsmCellLocation(Bundle bundle) {
         mLac = bundle.getInt("lac", mLac);
         mCid = bundle.getInt("cid", mCid);
+        mPsc = bundle.getInt("psc", mPsc);
     }
 
     /**
@@ -57,11 +60,20 @@ public class GsmCellLocation extends CellLocation {
     }
 
     /**
+     * @return primary scrambling code for UMTS, -1 if unknown or GSM
+     * @hide
+     */
+    public int getPsc() {
+        return mPsc;
+    }
+
+    /**
      * Invalidate this object.  The location area code and the cell id are set to -1.
      */
     public void setStateInvalid() {
         mLac = -1;
         mCid = -1;
+        mPsc = -1;
     }
 
     /**
@@ -72,6 +84,14 @@ public class GsmCellLocation extends CellLocation {
         mCid = cid;
     }
 
+    /**
+     * Set the primary scrambling code.
+     * @hide
+     */
+    public void setPsc(int psc) {
+        mPsc = psc;
+    }
+
     @Override
     public int hashCode() {
         return mLac ^ mCid;
@@ -91,12 +111,13 @@ public class GsmCellLocation extends CellLocation {
             return false;
         }
 
-        return equalsHandlesNulls(mLac, s.mLac) && equalsHandlesNulls(mCid, s.mCid);
+        return equalsHandlesNulls(mLac, s.mLac) && equalsHandlesNulls(mCid, s.mCid)
+            && equalsHandlesNulls(mPsc, s.mPsc);
     }
 
     @Override
     public String toString() {
-        return "["+ mLac + "," + mCid + "]";
+        return "["+ mLac + "," + mCid + "," + mPsc + "]";
     }
 
     /**
@@ -118,12 +139,13 @@ public class GsmCellLocation extends CellLocation {
     public void fillInNotifierBundle(Bundle m) {
         m.putInt("lac", mLac);
         m.putInt("cid", mCid);
+        m.putInt("psc", mPsc);
     }
 
     /**
      * @hide
      */
     public boolean isEmpty() {
-        return (mLac == -1 && mCid == -1);
+        return (mLac == -1 && mCid == -1 && mPsc == -1);
     }
 }
diff --git a/telephony/java/com/android/internal/telephony/gsm/GsmServiceStateTracker.java b/telephony/java/com/android/internal/telephony/gsm/GsmServiceStateTracker.java
index d539f6f..90ecbd7 100644
--- a/telephony/java/com/android/internal/telephony/gsm/GsmServiceStateTracker.java
+++ b/telephony/java/com/android/internal/telephony/gsm/GsmServiceStateTracker.java
@@ -650,6 +650,7 @@ final class GsmServiceStateTracker extends ServiceStateTracker {
                     int lac = -1;
                     int cid = -1;
                     int regState = -1;
+                    int psc = -1;
                     if (states.length > 0) {
                         try {
                             regState = Integer.parseInt(states[0]);
@@ -661,6 +662,11 @@ final class GsmServiceStateTracker extends ServiceStateTracker {
                                     cid = Integer.parseInt(states[2], 16);
                                 }
                             }
+                            if (states.length > 14) {
+                                if (states[14] != null && states[14].length() > 0) {
+                                    psc = Integer.parseInt(states[14], 16);
+                                }
+                            }
                         } catch (NumberFormatException ex) {
                             Log.w(LOG_TAG, "error parsing RegistrationState: " + ex);
                         }
@@ -677,6 +683,7 @@ final class GsmServiceStateTracker extends ServiceStateTracker {
 
                     // LAC and CID are -1 if not avail
                     newCellLoc.setLacAndCid(lac, cid);
+                    newCellLoc.setPsc(psc);
                 break;
 
                 case EVENT_POLL_STATE_GPRS: