Activate the last connected BT device am: 190a62102c (cdc6adab) · Commits · e / os / android_packages_modules_Bluetooth

android/app/src/com/android/bluetooth/a2dp/A2dpService.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -1292,7 +1292,7 @@ public class A2dpService extends ProfileService {
		/**
		* Retrieves the most recently connected device in the A2DP connected devices list.
		*/
		private BluetoothDevice getFallbackDevice() {
		public BluetoothDevice getFallbackDevice() {
		DatabaseManager dbManager = mAdapterService.getDatabase();
		return dbManager != null ? dbManager
		.getMostRecentlyConnectedDevicesInList(getConnectedDevices())

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

+111 −21

Original line number	Diff line number	Diff line
		@@ -40,6 +40,7 @@ import android.os.Message;
		import android.util.Log;

		import com.android.bluetooth.a2dp.A2dpService;
		import com.android.bluetooth.btservice.storage.DatabaseManager;
		import com.android.bluetooth.hearingaid.HearingAidService;
		import com.android.bluetooth.hfp.HeadsetService;
		import com.android.bluetooth.le_audio.LeAudioService;
		@@ -51,8 +52,10 @@ import java.util.Objects;

		/**
		* The active device manager is responsible for keeping track of the
		* connected A2DP/HFP/AVRCP/HearingAid devices and select which device is
		* connected A2DP/HFP/AVRCP/HearingAid/LE audio devices and select which device is
		* active (for each profile).
		* The active device manager selects a fallback device when the currently active device
		* is disconnected, and it selects BT devices that are lastly activated one.
		*
		* Current policy (subject to change):
		* 1) If the maximum number of connected devices is one, the manager doesn't
		@@ -66,24 +69,24 @@ import java.util.Objects;
		* - BluetoothA2dp.ACTION_ACTIVE_DEVICE_CHANGED for A2DP
		* - BluetoothHeadset.ACTION_ACTIVE_DEVICE_CHANGED for HFP
		* - BluetoothHearingAid.ACTION_ACTIVE_DEVICE_CHANGED for HearingAid
		* - BluetoothLeAudio.ACTION_LE_AUDIO_ACTIVE_DEVICE_CHANGED for LE audio
		* If such broadcast is received (e.g., triggered indirectly by user
		* action on the UI), the device in the received broacast is marked
		* action on the UI), the device in the received broadcast is marked
		* as the current active device for that profile.
		* 5) If there is a HearingAid active device, then A2DP and HFP active devices
		* must be set to null (i.e., A2DP and HFP cannot have active devices).
		* The reason is because A2DP or HFP cannot be used together with HearingAid.
		* 5) If there is a HearingAid active device, then A2DP, HFP and LE audio active devices
		* must be set to null (i.e., A2DP, HFP and LE audio cannot have active devices).
		* The reason is that A2DP, HFP or LE audio cannot be used together with HearingAid.
		* 6) If there are no connected devices (e.g., during startup, or after all
		* devices have been disconnected, the active device per profile
		* (A2DP/HFP/HearingAid) is selected as follows:
		* (A2DP/HFP/HearingAid/LE audio) is selected as follows:
		* 6.1) The last connected HearingAid device is selected as active.
		* If there is an active A2DP or HFP device, those must be set to null.
		* 6.2) The last connected A2DP or HFP device is selected as active.
		* If there is an active A2DP, HFP or LE audio device, those must be set to null.
		* 6.2) The last connected A2DP, HFP or LE audio device is selected as active.
		* However, if there is an active HearingAid device, then the
		* A2DP or HFP active device is not set (must remain null).
		* A2DP, HFP, or LE audio active device is not set (must remain null).
		* 7) If the currently active device (per profile) is disconnected, the
		* Active Device Manager just marks that the profile has no active device,
		* but does not attempt to select a new one. Currently, the expectation is
		* that the user will explicitly select the new active device.
		* and the lastly activated BT device that is still connected would be selected.
		* 8) If there is already an active device, and the corresponding
		* ACTION_ACTIVE_DEVICE_CHANGED broadcast is received, the device
		* contained in the broadcast is marked as active. However, if
		@@ -91,7 +94,7 @@ import java.util.Objects;
		* as having no active device.
		* 9) If a wired audio device is connected, the audio output is switched
		* by the Audio Framework itself to that device. We detect this here,
		* and the active device for each profile (A2DP/HFP/HearingAid) is set
		* and the active device for each profile (A2DP/HFP/HearingAid/LE audio) is set
		* to null to reflect the output device state change. However, if the
		* wired audio device is disconnected, we don't do anything explicit
		* and apply the default behavior instead:
		@@ -252,10 +255,12 @@ class ActiveDeviceManager {
		+ "device " + device + " disconnected");
		}
		mA2dpConnectedDevices.remove(device);
		if (mA2dpConnectedDevices.isEmpty()
		&& Objects.equals(mA2dpActiveDevice, device)) {
		if (Objects.equals(mA2dpActiveDevice, device)) {
		if (mA2dpConnectedDevices.isEmpty()) {
		setA2dpActiveDevice(null);
		}
		setFallbackDeviceActive();
		}
		}
		}
		break;
		@@ -314,10 +319,12 @@ class ActiveDeviceManager {
		+ "device " + device + " disconnected");
		}
		mHfpConnectedDevices.remove(device);
		if (mHfpConnectedDevices.isEmpty()
		&& Objects.equals(mHfpActiveDevice, device)) {
		if (Objects.equals(mHfpActiveDevice, device)) {
		if (mHfpConnectedDevices.isEmpty()) {
		setHfpActiveDevice(null);
		}
		setFallbackDeviceActive();
		}
		}
		}
		break;
		@@ -392,10 +399,12 @@ class ActiveDeviceManager {
		+ "_CHANGED): device " + device + " disconnected");
		}
		mLeAudioConnectedDevices.remove(device);
		if (mLeAudioConnectedDevices.isEmpty()
		&& Objects.equals(mLeAudioActiveDevice, device)) {
		if (Objects.equals(mLeAudioActiveDevice, device)) {
		if (mLeAudioConnectedDevices.isEmpty()) {
		setLeAudioActiveDevice(null);
		}
		setFallbackDeviceActive();
		}
		}
		}
		break;
		@@ -658,6 +667,87 @@ class ActiveDeviceManager {
		}
		}

		private void setFallbackDeviceActive() {
		if (DBG) {
		Log.d(TAG, "setFallbackDeviceActive");
		}
		DatabaseManager dbManager = mAdapterService.getDatabase();
		if (dbManager == null) {
		return;
		}

		A2dpService a2dpService = mFactory.getA2dpService();
		BluetoothDevice a2dpFallbackDevice = null;
		if (a2dpService != null) {
		a2dpFallbackDevice = a2dpService.getFallbackDevice();
		}

		HeadsetService headsetService = mFactory.getHeadsetService();
		BluetoothDevice headsetFallbackDevice = null;
		if (headsetService != null) {
		headsetFallbackDevice = headsetService.getFallbackDevice();
		}

		List<BluetoothDevice> connectedDevices = new LinkedList<>();
		connectedDevices.addAll(mLeAudioConnectedDevices);
		switch (mAudioManager.getMode()) {
		case AudioManager.MODE_NORMAL:
		if (a2dpFallbackDevice != null) {
		connectedDevices.add(a2dpFallbackDevice);
		}
		break;
		case AudioManager.MODE_RINGTONE:
		if (headsetFallbackDevice != null && headsetService.isInbandRingingEnabled()) {
		connectedDevices.add(headsetFallbackDevice);
		}
		break;
		default:
		if (headsetFallbackDevice != null) {
		connectedDevices.add(headsetFallbackDevice);
		}
		}
		BluetoothDevice device = dbManager.getMostRecentlyConnectedDevicesInList(connectedDevices);
		if (device != null) {
		if (mAudioManager.getMode() == AudioManager.MODE_NORMAL) {
		if (Objects.equals(a2dpFallbackDevice, device)) {
		if (DBG) {
		Log.d(TAG, "set A2DP device active: " + device);
		}
		setA2dpActiveDevice(device);
		if (headsetFallbackDevice != null) {
		setHfpActiveDevice(device);
		setLeAudioActiveDevice(null);
		}
		} else {
		if (DBG) {
		Log.d(TAG, "set LE audio device active: " + device);
		}
		setLeAudioActiveDevice(device);
		setA2dpActiveDevice(null);
		setHfpActiveDevice(null);
		}
		} else {
		if (Objects.equals(headsetFallbackDevice, device)) {
		if (DBG) {
		Log.d(TAG, "set HFP device active: " + device);
		}
		setHfpActiveDevice(device);
		if (a2dpFallbackDevice != null) {
		setA2dpActiveDevice(a2dpFallbackDevice);
		setLeAudioActiveDevice(null);
		}
		} else {
		if (DBG) {
		Log.d(TAG, "set LE audio device active: " + device);
		}
		setLeAudioActiveDevice(device);
		setA2dpActiveDevice(null);
		setHfpActiveDevice(null);
		}
		}
		}
		}

		private void resetState() {
		mA2dpConnectedDevices.clear();
		mA2dpActiveDevice = null;

android/app/src/com/android/bluetooth/hfp/HeadsetService.java

+7 −2

Original line number	Diff line number	Diff line
		@@ -1927,7 +1927,12 @@ public class HeadsetService extends ProfileService {
		return true;
		}

		boolean isInbandRingingEnabled() {
		/**
		* Checks if headset devices are able to get inband ringing.
		*
		* @return True if inband ringing is enabled.
		*/
		public boolean isInbandRingingEnabled() {
		boolean isInbandRingingSupported = getResources().getBoolean(
		com.android.bluetooth.R.bool.config_bluetooth_hfp_inband_ringing_support);
		return isInbandRingingSupported && !SystemProperties.getBoolean(
		@@ -2176,7 +2181,7 @@ public class HeadsetService extends ProfileService {
		/**
		* Retrieves the most recently connected device in the A2DP connected devices list.
		*/
		private BluetoothDevice getFallbackDevice() {
		public BluetoothDevice getFallbackDevice() {
		DatabaseManager dbManager = mAdapterService.getDatabase();
		return dbManager != null ? dbManager
		.getMostRecentlyConnectedDevicesInList(getConnectedDevices())

android/app/tests/unit/src/com/android/bluetooth/btservice/ActiveDeviceManagerTest.java

+52 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,8 @@ import org.junit.runner.RunWith;
		import org.mockito.Mock;
		import org.mockito.MockitoAnnotations;

		import java.util.List;

		@MediumTest
		@RunWith(AndroidJUnit4.class)
		public class ActiveDeviceManagerTest {
		@@ -473,6 +475,56 @@ public class ActiveDeviceManagerTest {
		Assert.assertEquals(null, mActiveDeviceManager.getLeAudioActiveDevice());
		}

		/**
		* An LE Audio connected. An A2DP connected. The A2DP disconnected.
		* Then the LE Audio should be the active one.
		*/
		@Test
		public void leAudioAndA2dpConnectedThenA2dpDisconnected_fallbackToLeAudio() {
		leAudioConnected(mLeAudioDevice);
		verify(mLeAudioService, timeout(TIMEOUT_MS)).setActiveDevice(mLeAudioDevice);

		a2dpConnected(mA2dpDevice);
		verify(mA2dpService, timeout(TIMEOUT_MS)).setActiveDevice(mA2dpDevice);

		when(mAudioManager.getMode()).thenReturn(AudioManager.MODE_NORMAL);
		when(mDatabaseManager.getMostRecentlyConnectedDevicesInList(any())).thenAnswer(
		invocation -> {
		List<BluetoothDevice> devices = invocation.getArgument(0);
		return (devices != null && devices.contains(mLeAudioDevice))
		? mLeAudioDevice : null;
		}
		);
		a2dpDisconnected(mA2dpDevice);
		verify(mA2dpService, timeout(TIMEOUT_MS).atLeast(1)).setActiveDevice(isNull());
		verify(mLeAudioService, timeout(TIMEOUT_MS).times(2)).setActiveDevice(mLeAudioDevice);
		}

		/**
		* An A2DP connected. An LE Audio connected. The LE Audio disconnected.
		* Then the A2DP should be the active one.
		*/
		@Test
		public void a2dpAndLeAudioConnectedThenLeAudioDisconnected_fallbackToA2dp() {
		a2dpConnected(mA2dpDevice);
		verify(mA2dpService, timeout(TIMEOUT_MS)).setActiveDevice(mA2dpDevice);

		leAudioConnected(mLeAudioDevice);
		verify(mLeAudioService, timeout(TIMEOUT_MS)).setActiveDevice(mLeAudioDevice);

		when(mAudioManager.getMode()).thenReturn(AudioManager.MODE_NORMAL);
		when(mA2dpService.getFallbackDevice()).thenReturn(mA2dpDevice);
		when(mDatabaseManager.getMostRecentlyConnectedDevicesInList(any())).thenAnswer(
		invocation -> {
		List<BluetoothDevice> devices = invocation.getArgument(0);
		return (devices != null && devices.contains(mA2dpDevice)) ? mA2dpDevice : null;
		}
		);
		leAudioDisconnected(mLeAudioDevice);
		verify(mLeAudioService, timeout(TIMEOUT_MS).atLeast(1)).setActiveDevice(isNull());
		verify(mA2dpService, timeout(TIMEOUT_MS).times(2)).setActiveDevice(mA2dpDevice);
		}

		/**
		* One LE Hearing Aid is connected.
		*/