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Commit cf3cfd33 authored by Stanley Tng's avatar Stanley Tng
Browse files

Add function to change LE Tx Data Length 

As part of new SL4A tests for LE CoC to measure data throughput, this
commit adds a function to set the LE Tx Data Length parameter to its
maximum.

Test: Ran the new ACTS Tests for LE CoC (BleCocTest and BleCoc2ConnTest)
Bug: 70683224
Change-Id: Iea93f6cb9f4f7cc484f121afa158d7dae18d1ef1
parent 65be8034

framework/java/android/bluetooth/BluetoothSocket.java

+29 −0
Original line number Diff line number Diff line
@@ -676,6 +676,35 @@ public final class BluetoothSocket implements Closeable { 
        mExcludeSdp = excludeSdp;

    }



    /**

     * Set the LE Transmit Data Length to be the maximum that the BT Controller is capable of. This

     * parameter is used by the BT Controller to set the maximum transmission packet size on this

     * connection. This function is currently used for testing only.

     * @hide

     */

    public void requestMaximumTxDataLength() throws IOException {

        if (mDevice == null) {

            throw new IOException("requestMaximumTxDataLength is called on null device");

        }



        try {

            if (mSocketState == SocketState.CLOSED) {

                throw new IOException("socket closed");

            }

            IBluetooth bluetoothProxy =

                    BluetoothAdapter.getDefaultAdapter().getBluetoothService(null);

            if (bluetoothProxy == null) {

                throw new IOException("Bluetooth is off");

            }



            if (DBG) Log.d(TAG, "requestMaximumTxDataLength");

            bluetoothProxy.getSocketManager().requestMaximumTxDataLength(mDevice);

        } catch (RemoteException e) {

            Log.e(TAG, Log.getStackTraceString(new Throwable()));

            throw new IOException("unable to send RPC: " + e.getMessage());

        }

    }



    private String convertAddr(final byte[] addr) {

        return String.format(Locale.US, "%02X:%02X:%02X:%02X:%02X:%02X",

                addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);