le_audio: Introduce allowed context mask (6c060a1a) · Commits · e / os / android_packages_modules_Bluetooth

android/app/jni/com_android_bluetooth_le_audio.cpp

+19 −0

Original line number	Diff line number	Diff line
		@@ -734,6 +734,23 @@ static void sendAudioProfilePreferencesNative(
		groupId, isOutputPreferenceLeAudio, isDuplexPreferenceLeAudio);
		}

		static void setGroupAllowedContextMaskNative(JNIEnv* /* env */,
		jobject /* object */, jint groupId,
		jint sinkContextTypes,
		jint sourceContextTypes) {
		std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
		if (!sLeAudioClientInterface) {
		log::error("Failed to get the Bluetooth LeAudio Interface");
		return;
		}

		log::info("group_id: {}, sink context types: {}, source context types: {}",
		groupId, sinkContextTypes, sourceContextTypes);

		sLeAudioClientInterface->SetGroupAllowedContextMask(groupId, sinkContextTypes,
		sourceContextTypes);
		}

		/* Le Audio Broadcaster */
		static jmethodID method_onBroadcastCreated;
		static jmethodID method_onBroadcastDestroyed;
		@@ -1592,6 +1609,8 @@ int register_com_android_bluetooth_le_audio(JNIEnv* env) {
		(void*)setUnicastMonitorModeNative},
		{"sendAudioProfilePreferencesNative", "(IZZ)V",
		(void*)sendAudioProfilePreferencesNative},
		{"setGroupAllowedContextMaskNative", "(III)V",
		(void*)setGroupAllowedContextMaskNative},
		};

		const int result = REGISTER_NATIVE_METHODS(

android/app/src/com/android/bluetooth/bass_client/BassClientService.java

+53 −4

Original line number	Diff line number	Diff line
		@@ -17,14 +17,17 @@
		package com.android.bluetooth.bass_client;

		import static android.Manifest.permission.BLUETOOTH_CONNECT;
		import static android.bluetooth.IBluetoothLeAudio.LE_AUDIO_GROUP_ID_INVALID;

		import static com.android.bluetooth.flags.Flags.leaudioBroadcastAudioHandoverPolicies;
		import static com.android.bluetooth.flags.Flags.leaudioBroadcastFeatureSupport;
		import static com.android.bluetooth.flags.Flags.leaudioBroadcastAssistantPeripheralEntrustment;
		import static com.android.bluetooth.flags.Flags.leaudioAllowedContextMask;
		import static com.android.bluetooth.Utils.enforceBluetoothPrivilegedPermission;

		import android.bluetooth.BluetoothAdapter;
		import android.bluetooth.BluetoothDevice;
		import android.bluetooth.BluetoothLeAudio;
		import android.bluetooth.BluetoothLeBroadcastMetadata;
		import android.bluetooth.BluetoothLeBroadcastReceiveState;
		import android.bluetooth.BluetoothProfile;
		@@ -139,6 +142,7 @@ public class BassClientService extends ProfileService {
		private ScanCallback mSearchScanCallback;
		private Callbacks mCallbacks;
		private boolean mIsAssistantActive = false;
		private boolean mIsAllowedContextOfActiveGroupModified = false;
		Optional<Integer> mUnicastSourceStreamStatus = Optional.empty();

		private static final int LOG_NB_EVENTS = 100;
		@@ -428,6 +432,16 @@ public class BassClientService extends ProfileService {
		if (leAudioService != null) {
		leAudioService.activeBroadcastAssistantNotification(false);
		}
		mIsAssistantActive = false;
		}

		if (mIsAllowedContextOfActiveGroupModified) {
		LeAudioService leAudioService = mServiceFactory.getLeAudioService();
		if (leAudioService != null) {
		leAudioService.setActiveGroupAllowedContextMask(
		BluetoothLeAudio.CONTEXTS_ALL, BluetoothLeAudio.CONTEXTS_ALL);
		}
		mIsAllowedContextOfActiveGroupModified = false;
		}

		synchronized (mStateMachines) {
		@@ -632,7 +646,22 @@ public class BassClientService extends ProfileService {
		}
		}

		private void localNotifyReceiveStateChanged() {
		private boolean isDevicePartOfActiveUnicastGroup(BluetoothDevice device) {
		LeAudioService leAudioService = mServiceFactory.getLeAudioService();
		if (leAudioService == null) {
		return false;
		}

		return (leAudioService.getActiveGroupId() != LE_AUDIO_GROUP_ID_INVALID)
		&& (leAudioService.getActiveDevices().contains(device));
		}

		private boolean isAnyDeviceFromActiveUnicastGroupReceivingBroadcast() {
		return getActiveBroadcastSinks().stream()
		.anyMatch(d -> isDevicePartOfActiveUnicastGroup(d));
		}

		private void localNotifyReceiveStateChanged(BluetoothDevice sink) {
		LeAudioService leAudioService = mServiceFactory.getLeAudioService();
		if (leAudioService == null) {
		return;
		@@ -645,7 +674,18 @@ public class BassClientService extends ProfileService {
		if (!mIsAssistantActive) {
		mIsAssistantActive = true;
		leAudioService.activeBroadcastAssistantNotification(true);
		return;
		}

		if (leaudioAllowedContextMask()) {
		/* Don't bother active group (external broadcaster scenario) with SOUND EFFECTS */
		if (!mIsAllowedContextOfActiveGroupModified
		&& isDevicePartOfActiveUnicastGroup(sink)) {
		leAudioService.setActiveGroupAllowedContextMask(
		BluetoothLeAudio.CONTEXTS_ALL
		& ~BluetoothLeAudio.CONTEXT_TYPE_SOUND_EFFECTS,
		BluetoothLeAudio.CONTEXTS_ALL);
		mIsAllowedContextOfActiveGroupModified = true;
		}
		}
		} else {
		/* Assistant become inactive */
		@@ -653,8 +693,17 @@ public class BassClientService extends ProfileService {
		mIsAssistantActive = false;
		mUnicastSourceStreamStatus = Optional.empty();
		leAudioService.activeBroadcastAssistantNotification(false);
		}

		return;
		if (leaudioAllowedContextMask()) {
		/* Restore allowed context mask for active device */
		if (mIsAllowedContextOfActiveGroupModified) {
		if (!isAnyDeviceFromActiveUnicastGroupReceivingBroadcast()) {
		leAudioService.setActiveGroupAllowedContextMask(
		BluetoothLeAudio.CONTEXTS_ALL, BluetoothLeAudio.CONTEXTS_ALL);
		}
		mIsAllowedContextOfActiveGroupModified = false;
		}
		}
		}
		}
		@@ -2571,7 +2620,7 @@ public class BassClientService extends ProfileService {
		BluetoothLeBroadcastReceiveState state) {
		ObjParams param = new ObjParams(sink, state);

		sService.localNotifyReceiveStateChanged();
		sService.localNotifyReceiveStateChanged(sink);

		String subgroupState = " / SUB GROUPS: ";
		for (int i = 0; i < state.getNumSubgroups(); i++) {

android/app/src/com/android/bluetooth/le_audio/LeAudioNativeInterface.java

+23 −0

Original line number	Diff line number	Diff line
		@@ -390,6 +390,26 @@ public class LeAudioNativeInterface {
		isDuplexPreferenceLeAudio);
		}

		/**
		* Set allowed context which should be considered while Audio Framework would request streaming.
		*
		* @param groupId is the groupId corresponding to the allowed context
		* @param sinkContextTypes sink context types that would be allowed to stream
		* @param sourceContextTypes source context types that would be allowed to stream
		*/
		public void setGroupAllowedContextMask(
		int groupId, int sinkContextTypes, int sourceContextTypes) {
		Log.d(
		TAG,
		"setGroupAllowedContextMask groupId="
		+ groupId
		+ ", sinkContextTypes="
		+ sinkContextTypes
		+ ", sourceContextTypes="
		+ sourceContextTypes);
		setGroupAllowedContextMaskNative(groupId, sinkContextTypes, sourceContextTypes);
		}

		// Native methods that call into the JNI interface
		private native void initNative(BluetoothLeAudioCodecConfig[] codecConfigOffloading);
		private native void cleanupNative();
		@@ -410,4 +430,7 @@ public class LeAudioNativeInterface {
		/package/
		private native void sendAudioProfilePreferencesNative(int groupId,
		boolean isOutputPreferenceLeAudio, boolean isDuplexPreferenceLeAudio);

		private native void setGroupAllowedContextMaskNative(
		int groupId, int sinkContextTypes, int sourceContextTypes);
		}

android/app/src/com/android/bluetooth/le_audio/LeAudioService.java

+110 −1

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import static android.bluetooth.IBluetoothLeAudio.LE_AUDIO_GROUP_ID_INVALID;

		import static com.android.bluetooth.flags.Flags.leaudioBroadcastFeatureSupport;
		import static com.android.bluetooth.flags.Flags.leaudioApiSynchronizedBlockFix;
		import static com.android.bluetooth.flags.Flags.leaudioAllowedContextMask;
		import static com.android.bluetooth.Utils.enforceBluetoothPrivilegedPermission;
		import static com.android.modules.utils.build.SdkLevel.isAtLeastU;

		@@ -272,6 +273,8 @@ public class LeAudioService extends ProfileService {
		Boolean mInactivatedDueToContextType;

		private Integer mActiveState;
		private Integer mAllowedSinkContexts;
		private Integer mAllowedSourceContexts;

		boolean isActive() {
		return mActiveState == ACTIVE_STATE_ACTIVE;
		@@ -309,6 +312,38 @@ public class LeAudioService extends ProfileService {
		return "INVALID";
		}
		}

		void updateAllowedContexts(Integer allowedSinkContexts, Integer allowedSourceContexts) {
		Log.d(
		TAG,
		"LeAudioGroupDescriptor.mAllowedSinkContexts: "
		+ mAllowedSinkContexts
		+ " -> "
		+ allowedSinkContexts
		+ ", LeAudioGroupDescriptor.mAllowedSourceContexts: "
		+ mAllowedSourceContexts
		+ " -> "
		+ allowedSourceContexts);

		mAllowedSinkContexts = allowedSinkContexts;
		mAllowedSourceContexts = allowedSourceContexts;
		}

		Integer getAllowedSinkContexts() {
		return mAllowedSinkContexts;
		}

		Integer getAllowedSourceContexts() {
		return mAllowedSourceContexts;
		}

		boolean areAllowedContextsModified() {
		if ((mAllowedSinkContexts != BluetoothLeAudio.CONTEXTS_ALL)
		\|\| (mAllowedSourceContexts != BluetoothLeAudio.CONTEXTS_ALL)) {
		return true;
		}
		return false;
		}
		}

		private static class LeAudioDeviceDescriptor {
		@@ -1442,6 +1477,22 @@ public class LeAudioService extends ProfileService {
		return true;
		}

		private Integer getFirstGroupIdInGettingActiveState() {
		mGroupReadLock.lock();
		try {
		for (Map.Entry<Integer, LeAudioGroupDescriptor> entry :
		mGroupDescriptorsView.entrySet()) {
		LeAudioGroupDescriptor descriptor = entry.getValue();
		if (descriptor.isGettingActive()) {
		return entry.getKey();
		}
		}
		} finally {
		mGroupReadLock.unlock();
		}
		return LE_AUDIO_GROUP_ID_INVALID;
		}

		private BluetoothDevice getLeadDeviceForTheGroup(Integer groupId) {
		if (groupId == LE_AUDIO_GROUP_ID_INVALID) {
		return null;
		@@ -2530,6 +2581,30 @@ public class LeAudioService extends ProfileService {
		}
		}

		private void setGroupAllowedContextMask(
		int groupId, int sinkContextTypes, int sourceContextTypes) {
		if (!mLeAudioNativeIsInitialized) {
		Log.e(TAG, "Le Audio not initialized properly.");
		return;
		}

		if (groupId == LE_AUDIO_GROUP_ID_INVALID) {
		Log.i(TAG, "setActiveGroupAllowedContextMask: no active group");
		return;
		}

		LeAudioGroupDescriptor groupDescriptor = getGroupDescriptor(groupId);
		if (groupDescriptor == null) {
		Log.e(TAG, "Group " + groupId + " does not exist");
		return;
		}

		groupDescriptor.updateAllowedContexts(sinkContextTypes, sourceContextTypes);

		mLeAudioNativeInterface.setGroupAllowedContextMask(
		groupId, sinkContextTypes, sourceContextTypes);
		}

		@VisibleForTesting
		void handleGroupIdleDuringCall() {
		if (mHfpHandoverDevice == null) {
		@@ -3055,9 +3130,33 @@ public class LeAudioService extends ProfileService {
		descriptor.setActiveState(ACTIVE_STATE_INACTIVE);

		/* In case if group is inactivated due to switch to other */
		if (!areAllGroupsInNotGettingActiveState()) {
		Integer gettingActiveGroupId = getFirstGroupIdInGettingActiveState();
		if (gettingActiveGroupId != LE_AUDIO_GROUP_ID_INVALID) {
		if (leaudioAllowedContextMask()) {
		/* Context were modified, apply mask to activating group */
		if (descriptor.areAllowedContextsModified()) {
		setGroupAllowedContextMask(
		gettingActiveGroupId,
		descriptor.getAllowedSinkContexts(),
		descriptor.getAllowedSourceContexts());
		setGroupAllowedContextMask(
		groupId,
		BluetoothLeAudio.CONTEXTS_ALL,
		BluetoothLeAudio.CONTEXTS_ALL);
		}
		}
		break;
		}

		if (leaudioAllowedContextMask()) {
		/* Clear allowed context mask if there is no switch of group */
		if (descriptor.areAllowedContextsModified()) {
		setGroupAllowedContextMask(
		groupId,
		BluetoothLeAudio.CONTEXTS_ALL,
		BluetoothLeAudio.CONTEXTS_ALL);
		}
		}
		} else {
		handleGroupTransitToInactive(groupId);
		}
		@@ -3749,6 +3848,16 @@ public class LeAudioService extends ProfileService {
		isDuplexPreferenceLeAudio);
		}

		/**
		* Set allowed context which should be considered while Audio Framework would request streaming.
		*
		* @param sinkContextTypes sink context types that would be allowed to stream
		* @param sourceContextTypes source context types that would be allowed to stream
		*/
		public void setActiveGroupAllowedContextMask(int sinkContextTypes, int sourceContextTypes) {
		setGroupAllowedContextMask(getActiveGroupId(), sinkContextTypes, sourceContextTypes);
		}

		/**
		* Set Inactive by HFP during handover This is a work around to handle controllers that cannot
		* have SCO and CIS at the same time. So remove active device to tear down CIS, and re-connect

android/app/tests/unit/src/com/android/bluetooth/le_audio/LeAudioServiceTest.java

+65 −0

Original line number	Diff line number	Diff line
		@@ -2837,4 +2837,69 @@ public class LeAudioServiceTest {
		eq(null),
		any(BluetoothProfileConnectionInfo.class));
		}

		/** Test setting allowed contexts for active group */
		@Test
		public void testSetAllowedContextsForActiveGroup() {
		mSetFlagsRule.enableFlags(Flags.FLAG_LEAUDIO_GETTING_ACTIVE_STATE_SUPPORT);
		mSetFlagsRule.enableFlags(Flags.FLAG_LEAUDIO_ALLOWED_CONTEXT_MASK);
		int groupId = 1;
		/* AUDIO_DIRECTION_OUTPUT_BIT = 0x01 */
		int direction = 1;
		int snkAudioLocation = 3;
		int srcAudioLocation = 4;
		int availableContexts = 5 + BluetoothLeAudio.CONTEXT_TYPE_RINGTONE;

		// Not connected device
		assertThat(mService.setActiveDevice(mSingleDevice)).isFalse();

		// Connected device
		doReturn(true).when(mNativeInterface).connectLeAudio(any(BluetoothDevice.class));
		connectTestDevice(mSingleDevice, testGroupId);

		// Add location support
		LeAudioStackEvent audioConfChangedEvent =
		new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_AUDIO_CONF_CHANGED);
		audioConfChangedEvent.device = mSingleDevice;
		audioConfChangedEvent.valueInt1 = direction;
		audioConfChangedEvent.valueInt2 = groupId;
		audioConfChangedEvent.valueInt3 = snkAudioLocation;
		audioConfChangedEvent.valueInt4 = srcAudioLocation;
		audioConfChangedEvent.valueInt5 = availableContexts;
		mService.messageFromNative(audioConfChangedEvent);

		assertThat(mService.setActiveDevice(mSingleDevice)).isTrue();
		verify(mNativeInterface).groupSetActive(groupId);

		// Set group and device as active
		LeAudioStackEvent groupStatusChangedEvent =
		new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_GROUP_STATUS_CHANGED);
		groupStatusChangedEvent.valueInt1 = groupId;
		groupStatusChangedEvent.valueInt2 = LeAudioStackEvent.GROUP_STATUS_ACTIVE;
		mService.messageFromNative(groupStatusChangedEvent);

		// Trigger update of allowed context for active group
		int sinkContextTypes =
		BluetoothLeAudio.CONTEXTS_ALL & ~BluetoothLeAudio.CONTEXT_TYPE_SOUND_EFFECTS;
		int sourceContextTypes =
		BluetoothLeAudio.CONTEXTS_ALL
		& ~(BluetoothLeAudio.CONTEXT_TYPE_NOTIFICATIONS
		\| BluetoothLeAudio.CONTEXT_TYPE_GAME);

		mService.setActiveGroupAllowedContextMask(sinkContextTypes, sourceContextTypes);
		verify(mNativeInterface)
		.setGroupAllowedContextMask(groupId, sinkContextTypes, sourceContextTypes);

		// no active device, allowed context should be reset
		assertThat(mService.removeActiveDevice(false)).isTrue();
		verify(mNativeInterface).groupSetActive(BluetoothLeAudio.GROUP_ID_INVALID);

		// Set group and device as inactive active
		groupStatusChangedEvent.valueInt2 = LeAudioStackEvent.GROUP_STATUS_INACTIVE;
		mService.messageFromNative(groupStatusChangedEvent);

		verify(mNativeInterface)
		.setGroupAllowedContextMask(
		groupId, BluetoothLeAudio.CONTEXTS_ALL, BluetoothLeAudio.CONTEXTS_ALL);
		}
		}