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Commit 3fa8ed66 authored by Jack He's avatar Jack He
Browse files

Adapter: Use config value for default max connected audio devices 

* Use config_bluetooth_max_connected_audio_devices config value for
  default max connected audio devices
* Override above value using system property if the property is set by
  development settings
* Check and normalize resultant value to permitted range
  [MAX_CONNECTED_AUDIO_DEVICES_LOWER_BOND,
  MAX_CONNECTED_AUDIO_DEVICES_UPPER_BOUND]
* Dump this value to dumpsys

Bug: 64767509
Test: Enable and disable multi-device mode in development settings
Change-Id: Id038d742e9aadfc964b52e406467f4e86a73b73f
parent 2a1b62e2

android/app/src/com/android/bluetooth/btservice/AdapterProperties.java

+16 −3
Original line number Diff line number Diff line
@@ -56,7 +56,8 @@ class AdapterProperties { 


    private static final String MAX_CONNECTED_AUDIO_DEVICES_PROPERTY =

            "persist.bluetooth.maxconnectedaudiodevices";

    static final int MIN_CONNECTED_AUDIO_DEVICES = 1;

    static final int MAX_CONNECTED_AUDIO_DEVICES_LOWER_BOND = 1;

    private static final int MAX_CONNECTED_AUDIO_DEVICES_UPPER_BOUND = 5;



    private static final long DEFAULT_DISCOVERY_TIMEOUT_MS = 12800;

    private static final int BD_ADDR_LEN = 6; // in bytes
@@ -170,8 +171,20 @@ class AdapterProperties { 
        mProfileConnectionState.clear();

        mRemoteDevices = remoteDevices;



        mMaxConnectedAudioDevices = SystemProperties.getInt(

                MAX_CONNECTED_AUDIO_DEVICES_PROPERTY, MIN_CONNECTED_AUDIO_DEVICES);

        // Get default max connected audio devices from config.xml in frameworks/base/core

        int configDefaultMaxConnectedAudioDevices = mService.getResources().getInteger(

                com.android.internal.R.integer.config_bluetooth_max_connected_audio_devices);

        // Override max connected audio devices if MAX_CONNECTED_AUDIO_DEVICES_PROPERTY is set

        int propertyOverlayedMaxConnectedAudioDevices =

                SystemProperties.getInt(MAX_CONNECTED_AUDIO_DEVICES_PROPERTY,

                        configDefaultMaxConnectedAudioDevices);

        // Make sure the final value of max connected audio devices is within allowed range

        mMaxConnectedAudioDevices = Math.min(Math.max(propertyOverlayedMaxConnectedAudioDevices,

                MAX_CONNECTED_AUDIO_DEVICES_LOWER_BOND), MAX_CONNECTED_AUDIO_DEVICES_UPPER_BOUND);

        Log.i(TAG, "init(), maxConnectedAudioDevices, default="

                + configDefaultMaxConnectedAudioDevices + ", propertyOverlayed="

                + propertyOverlayedMaxConnectedAudioDevices + ", finalValue="

                + mMaxConnectedAudioDevices);



        IntentFilter filter = new IntentFilter();

        filter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);

android/app/src/com/android/bluetooth/btservice/AdapterService.java

+6 −1
Original line number Diff line number Diff line
@@ -1368,7 +1368,7 @@ public class AdapterService extends Service { 
            // don't check caller, may be called from system UI

            AdapterService service = getService();

            if (service == null) {

                return AdapterProperties.MIN_CONNECTED_AUDIO_DEVICES;

                return AdapterProperties.MAX_CONNECTED_AUDIO_DEVICES_LOWER_BOND;

            }

            return service.getMaxConnectedAudioDevices();

        }
@@ -2380,6 +2380,11 @@ public class AdapterService extends Service { 
            return;

        }



        writer.println("AdapterProperties");

        writer.println("  " + "MaxConnectedAudioDevices: " + getMaxConnectedAudioDevices());

        writer.println();





        writer.println("Bonded devices:");

        for (BluetoothDevice device : getBondedDevices()) {

            writer.println(