Added APIs for Connection-oriented channels

Experimental and hidden APIs are defined for the Connection-oriented Channel
(CoC) features. The APIs using PSM are implemented.

Test: Can compile
Bug: 70683224
Change-Id: Icdb5fa190b0e21881a60437fa48cd575371ee1e4

1 files changed, 20 insertions, 0 deletions

diff --git a/core/java/android/bluetooth/BluetoothServerSocket.java b/core/java/android/bluetooth/BluetoothServerSocket.java
index 58d090dc287b..ebb7f187aea5 100644
--- a/core/java/android/bluetooth/BluetoothServerSocket.java
+++ b/core/java/android/bluetooth/BluetoothServerSocket.java
@@ -68,6 +68,7 @@ import java.io.IOException;
 public final class BluetoothServerSocket implements Closeable {
 
     private static final String TAG = "BluetoothServerSocket";
+    private static final boolean DBG = false;
     /*package*/ final BluetoothSocket mSocket;
     private Handler mHandler;
     private int mMessage;
@@ -169,6 +170,7 @@ public final class BluetoothServerSocket implements Closeable {
      * close any {@link BluetoothSocket} received from {@link #accept()}.
      */
     public void close() throws IOException {
+        if (DBG) Log.d(TAG, "BluetoothServerSocket:close() called. mChannel=" + mChannel);
         synchronized (this) {
             if (mHandler != null) {
                 mHandler.obtainMessage(mMessage).sendToTarget();
@@ -197,6 +199,20 @@ public final class BluetoothServerSocket implements Closeable {
     }
 
     /**
+     * Returns the assigned dynamic protocol/service multiplexer (PSM) value for the listening L2CAP
+     * Connection-oriented Channel (CoC) server socket. This server socket must be returned by the
+     * {#link BluetoothAdapter.listenUsingL2capCoc(int)} or {#link
+     * BluetoothAdapter.listenUsingInsecureL2capCoc(int)}. The returned value is undefined if this
+     * method is called on non-L2CAP server sockets.
+     *
+     * @return the assigned PSM or LE_PSM value depending on transport
+     * @hide
+     */
+    public int getPsm() {
+        return mChannel;
+    }
+
+    /**
      * Sets the channel on which future sockets are bound.
      * Currently used only when a channel is auto generated.
      */
@@ -227,6 +243,10 @@ public final class BluetoothServerSocket implements Closeable {
                 sb.append("TYPE_L2CAP");
                 break;
             }
+            case BluetoothSocket.TYPE_L2CAP_LE: {
+                sb.append("TYPE_L2CAP_LE");
+                break;
+            }
             case BluetoothSocket.TYPE_SCO: {
                 sb.append("TYPE_SCO");
                 break;