Delay bond start when native is busy (9982f735) · Commits · e / os / android_packages_modules_Bluetooth

android/app/jni/com_android_bluetooth_btservice_AdapterService.cpp

+9 −0

Original line number	Diff line number	Diff line
		@@ -1467,6 +1467,14 @@ static jboolean cancelBondNative(JNIEnv* env, jobject /* obj */,
		return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
		}

		static jboolean pairingIsBusyNative(JNIEnv* /env/, jobject /* obj */) {
		ALOGV("%s", __func__);

		if (!sBluetoothInterface) return JNI_FALSE;

		return sBluetoothInterface->pairing_is_busy();
		}

		static int getConnectionStateNative(JNIEnv* env, jobject /* obj */,
		jbyteArray address) {
		ALOGV("%s", __func__);
		@@ -2116,6 +2124,7 @@ int register_com_android_bluetooth_btservice_AdapterService(JNIEnv* env) {
		(void*)createBondOutOfBandNative},
		{"removeBondNative", "([B)Z", (void*)removeBondNative},
		{"cancelBondNative", "([B)Z", (void*)cancelBondNative},
		{"pairingIsBusyNative", "()Z", (void*)pairingIsBusyNative},
		{"generateLocalOobDataNative", "(I)V", (void*)generateLocalOobDataNative},
		{"getConnectionStateNative", "([B)I", (void*)getConnectionStateNative},
		{"pinReplyNative", "([BZI[B)Z", (void*)pinReplyNative},

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

+6 −0

Original line number	Diff line number	Diff line
		@@ -124,6 +124,10 @@ public class AdapterNativeInterface {
		return cancelBondNative(address);
		}

		boolean pairingIsBusy() {
		return pairingIsBusyNative();
		}

		void generateLocalOobData(int transport) {
		generateLocalOobDataNative(transport);
		}
		@@ -285,6 +289,8 @@ public class AdapterNativeInterface {

		private native boolean cancelBondNative(byte[] address);

		private native boolean pairingIsBusyNative();

		private native void generateLocalOobDataNative(int transport);

		private native boolean sdpSearchNative(byte[] address, byte[] uuid);

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

+42 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,8 @@ import com.android.bluetooth.Utils;
		import com.android.bluetooth.a2dp.A2dpService;
		import com.android.bluetooth.a2dpsink.A2dpSinkService;
		import com.android.bluetooth.btservice.RemoteDevices.DeviceProperties;
		import com.android.bluetooth.flags.FeatureFlags;
		import com.android.bluetooth.flags.FeatureFlagsImpl;
		import com.android.bluetooth.hfp.HeadsetService;
		import com.android.bluetooth.hfpclient.HeadsetClientService;
		import com.android.bluetooth.hid.HidHostService;
		@@ -89,9 +91,14 @@ final class BondStateMachine extends StateMachine {
		public static final String OOBDATAP192 = "oobdatap192";
		public static final String OOBDATAP256 = "oobdatap256";
		public static final String DISPLAY_PASSKEY = "display_passkey";
		public static final String DELAY_RETRY_COUNT = "delay_retry_count";
		public static final short DELAY_MAX_RETRIES = 30;
		public static final int BOND_RETRY_DELAY_MS = 500;

		@VisibleForTesting Set<BluetoothDevice> mPendingBondedDevices = new HashSet<>();

		private final FeatureFlags mFeatureFlags = new FeatureFlagsImpl();

		private BondStateMachine(AdapterService service, AdapterProperties prop,
		RemoteDevices remoteDevices) {
		super("BondStateMachine:");
		@@ -141,6 +148,41 @@ final class BondStateMachine extends StateMachine {
		switch (msg.what) {

		case CREATE_BOND:
		/* BOND_BONDED event is send after keys are exchanged, but BTIF layer would
		still use bonding control blocks until service discovery is finished. If
		next pairing is started while previous still makes service discovery, it
		would fail. Check the busy status of BTIF instead, and wait with starting
		the bond. */
		if (mFeatureFlags.delayBondingWhenBusy()
		&& mAdapterService.getNative().pairingIsBusy()) {
		short retry_no =
		(msg.getData() != null)
		? msg.getData().getShort(DELAY_RETRY_COUNT)
		: 0;
		Log.d(
		TAG,
		"Delay CREATE_BOND because native is busy - attempt no "
		+ retry_no);

		if (retry_no < DELAY_MAX_RETRIES) {
		retry_no++;

		Message new_msg = obtainMessage();
		new_msg.copyFrom(msg);

		if (new_msg.getData() == null) {
		Bundle bundle = new Bundle();
		new_msg.setData(bundle);
		}
		new_msg.getData().putShort(DELAY_RETRY_COUNT, retry_no);

		sendMessageDelayed(new_msg, BOND_RETRY_DELAY_MS);
		return true;
		} else {
		Log.w(TAG, "Native was busy - the bond will most likely fail!");
		}
		}

		OobData p192Data = (msg.getData() != null)
		? msg.getData().getParcelable(OOBDATAP192) : null;
		OobData p256Data = (msg.getData() != null)

system/btif/src/bluetooth.cc

+7 −0

Original line number	Diff line number	Diff line
		@@ -641,6 +641,12 @@ static int remove_bond(const RawAddress* bd_addr) {
		return BT_STATUS_SUCCESS;
		}

		static bool pairing_is_busy() {
		if (btif_dm_pairing_is_busy()) return true;

		return false;
		}

		static int get_connection_state(const RawAddress* bd_addr) {
		if (!interface_ready()) return 0;

		@@ -1146,6 +1152,7 @@ EXPORT_SYMBOL bt_interface_t bluetoothInterface = {
		.create_bond_out_of_band = create_bond_out_of_band,
		.remove_bond = remove_bond,
		.cancel_bond = cancel_bond,
		.pairing_is_busy = pairing_is_busy,
		.get_connection_state = get_connection_state,
		.pin_reply = pin_reply,
		.ssp_reply = ssp_reply,

system/include/hardware/bluetooth.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -739,6 +739,8 @@ typedef struct {
		/** Cancel Bond */
		int (cancel_bond)(const RawAddress bd_addr);

		bool (*pairing_is_busy)();

		/**
		* Get the connection status for a given remote device.
		* return value of 0 means the device is not connected,