MSIM: Add support for DSDA.

1. Interface changes to inform local call hold and setActiveSubscription
to telephony service from telecomm service.
2. Interface in Telecomm manager to query active subscription and switch
to other subscription.
3. Add support in PhoneAccount to maintain LCH & active subscription
information.
4. Interface changes to inform sub switch between inCallUI and Telecomm
service.

Change-Id: I942122eab45a19ea30abc92c90228d9115c1df78

1 files changed, 38 insertions, 0 deletions

diff --git a/telecomm/java/android/telecom/PhoneAccount.java b/telecomm/java/android/telecom/PhoneAccount.java
index cdb0bf2..f890f4d 100644
--- a/telecomm/java/android/telecom/PhoneAccount.java
+++ b/telecomm/java/android/telecom/PhoneAccount.java
@@ -34,6 +34,7 @@ import android.text.TextUtils;
 
 import java.lang.String;
 import java.util.ArrayList;
+import java.util.BitSet;
 import java.util.Collections;
 import java.util.List;
 import java.util.MissingResourceException;
@@ -366,6 +367,43 @@ public final class PhoneAccount implements Parcelable {
     }
 
     /**
+     * Contains information related to
+     * LCH and ACTIVE.
+     */
+    private BitSet callsStatus = new BitSet();
+
+    /**
+     * {@hide}
+     */
+    public static final int LCH = 1;
+
+    /**
+     * {@hide}
+     */
+    public static final int ACTIVE = 2;
+
+    /**
+     * {@hide}
+     */
+    public void setBit(int bit) {
+        callsStatus.set(bit);
+    }
+
+    /**
+     * {@hide}
+     */
+    public void unSetBit(int bit) {
+        callsStatus.set(bit, false);
+    }
+
+    /**
+     * {@hide}
+     */
+    public boolean isSet(int bit) {
+        return callsStatus.get(bit);
+    }
+
+    /**
      * Returns a builder initialized with the current {@link PhoneAccount} instance.
      *
      * @return The builder.