Merge "Introduce a function to derive a more meaningful state for the UI from... (cc60d06f) · Commits · e / os / android_frameworks_base

packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothLeBroadcastAssistant.java

+41 −0

Original line number	Diff line number	Diff line
		@@ -52,6 +52,14 @@ import java.util.concurrent.Executors;
		* BluetoothLeBroadcastAssistant.Callback} to get the result callback.
		*/
		public class LocalBluetoothLeBroadcastAssistant implements LocalBluetoothProfile {
		/** A derived source state based on {@link BluetoothLeBroadcastReceiveState}. */
		public enum LocalBluetoothLeBroadcastSourceState {
		UNKNOWN,
		STREAMING,
		DECRYPTION_FAILED,
		PAUSED,
		}

		private static final String TAG = "LocalBluetoothLeBroadcastAssistant";
		private static final int UNKNOWN_VALUE_PLACEHOLDER = -1;
		private static final boolean DEBUG = BluetoothUtils.D;
		@@ -59,6 +67,13 @@ public class LocalBluetoothLeBroadcastAssistant implements LocalBluetoothProfile
		static final String NAME = "LE_AUDIO_BROADCAST_ASSISTANT";
		// Order of this profile in device profiles list
		private static final int ORDINAL = 1;
		// Referring to Broadcast Audio Scan Service 1.0
		// Table 3.9: Broadcast Receive State characteristic format
		// 0x00000000: 0b0 = Not synchronized to BIS_index[x]
		// 0xFFFFFFFF: Failed to sync to BIG
		private static final long BIS_SYNC_NOT_SYNC_TO_BIS = 0x00000000L;
		private static final long BIS_SYNC_FAILED_SYNC_TO_BIG = 0xFFFFFFFFL;
		private static final String EMPTY_DEVICE_ADDRESS = "00:00:00:00:00:00";

		private LocalBluetoothProfileManager mProfileManager;
		private BluetoothLeBroadcastAssistant mService;
		@@ -558,4 +573,30 @@ public class LocalBluetoothLeBroadcastAssistant implements LocalBluetoothProfile
		}
		}
		}

		/** Checks the source connection status based on the provided broadcast receive state. */
		public static LocalBluetoothLeBroadcastSourceState getLocalSourceState(
		BluetoothLeBroadcastReceiveState state) {
		// Source is actively streaming
		if (state.getBisSyncState().stream()
		.anyMatch(
		bitmap ->
		(bitmap != BIS_SYNC_NOT_SYNC_TO_BIS
		&& bitmap != BIS_SYNC_FAILED_SYNC_TO_BIG))) {
		return LocalBluetoothLeBroadcastSourceState.STREAMING;
		}
		// Wrong password is used for the source
		if (state.getPaSyncState() == BluetoothLeBroadcastReceiveState.PA_SYNC_STATE_SYNCHRONIZED
		&& state.getBigEncryptionState()
		== BluetoothLeBroadcastReceiveState.BIG_ENCRYPTION_STATE_BAD_CODE) {
		return LocalBluetoothLeBroadcastSourceState.DECRYPTION_FAILED;
		}
		// Source in hysteresis mode
		if (!state.getSourceDevice().getAddress().equals(EMPTY_DEVICE_ADDRESS)) {
		// Referring to Broadcast Audio Scan Service 1.0
		// All zero address means no source on the sink device
		return LocalBluetoothLeBroadcastSourceState.PAUSED;
		}
		return LocalBluetoothLeBroadcastSourceState.UNKNOWN;
		}
		}