Add status callback for start/stop advertising. (f305589f) · Commits · e / os / android_frameworks_base

core/java/android/bluetooth/BluetoothAdapter.java

+115 −68

Original line number	Diff line number	Diff line
		@@ -19,7 +19,9 @@ package android.bluetooth;
		import android.annotation.SdkConstant;
		import android.annotation.SdkConstant.SdkConstantType;
		import android.content.Context;
		import android.os.Handler;
		import android.os.IBinder;
		import android.os.Looper;
		import android.os.ParcelUuid;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		@@ -179,43 +181,6 @@ public final class BluetoothAdapter {
		public static final String EXTRA_DISCOVERABLE_DURATION =
		"android.bluetooth.adapter.extra.DISCOVERABLE_DURATION";

		/**
		* Activity Action: Show a system activity to request BLE advertising.<br>
		* If the device is not doing BLE advertising, this activity will start BLE advertising for the
		* device, otherwise it will continue BLE advertising using the current
		* {@link BluetoothAdvScanData}. <br>
		* Note this activity will also request the user to turn on Bluetooth if it's not currently
		* enabled.
		* @hide
		*/
		@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
		public static final String ACTION_START_ADVERTISING =
		"android.bluetooth.adapter.action.START_ADVERTISING";

		/**
		* Activity Action: Stop the current BLE advertising.
		* @hide
		*/
		@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
		public static final String ACTION_STOP_ADVERTISING =
		"android.bluetooth.adapter.action.STOP_ADVERTISING";

		/**
		* Broadcast Action: Indicate BLE Advertising is started.
		* @hide
		*/
		@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
		public static final String ACTION_BLUETOOTH_ADVERTISING_STARTED =
		"android.bluetooth.adapter.action.ADVERTISING_STARTED";

		/**
		* Broadcast Action: Indicated BLE Advertising is stopped.
		* @hide
		*/
		@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
		public static final String ACTION_BLUETOOTH_ADVERTISING_STOPPED =
		"android.bluetooth.adapter.action.ADVERTISING_STOPPED";

		/**
		* Activity Action: Show a system activity that allows the user to turn on
		* Bluetooth.
		@@ -247,6 +212,22 @@ public final class BluetoothAdapter {
		public static final String ACTION_SCAN_MODE_CHANGED =
		"android.bluetooth.adapter.action.SCAN_MODE_CHANGED";

		/**
		* Broadcast Action: Indicate BLE Advertising is started.
		* @hide
		*/
		@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
		public static final String ACTION_BLUETOOTH_ADVERTISING_STARTED =
		"android.bluetooth.adapter.action.ADVERTISING_STARTED";

		/**
		* Broadcast Action: Indicated BLE Advertising is stopped.
		* @hide
		*/
		@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
		public static final String ACTION_BLUETOOTH_ADVERTISING_STOPPED =
		"android.bluetooth.adapter.action.ADVERTISING_STOPPED";

		/**
		* Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED}
		* intents to request the current scan mode. Possible values are:
		@@ -383,9 +364,27 @@ public final class BluetoothAdapter {
		/** The profile is in disconnecting state */
		public static final int STATE_DISCONNECTING = 3;

		/** States for Bluetooth LE advertising */
		/** @hide */
		public static final int STATE_ADVERTISE_STARTING = 0;
		/** @hide */
		public static final int STATE_ADVERTISE_STARTED = 1;
		/** @hide */
		public static final int STATE_ADVERTISE_STOPPING = 2;
		/** @hide */
		public static final int STATE_ADVERTISE_STOPPED = 3;
		/**
		* Force stopping advertising without callback in case the advertising app dies.
		* @hide
		*/
		public static final int STATE_ADVERTISE_FORCE_STOPPING = 4;

		/** @hide */
		public static final String BLUETOOTH_MANAGER_SERVICE = "bluetooth_manager";

		/** @hide */
		public static final int ADVERTISE_CALLBACK_SUCCESS = 0;

		private static final int ADDRESS_LENGTH = 17;

		/**
		@@ -399,7 +398,9 @@ public final class BluetoothAdapter {

		private final Map<LeScanCallback, GattCallbackWrapper> mLeScanClients;
		private BluetoothAdvScanData mBluetoothAdvScanData = null;
		private GattCallbackWrapper mAdvertisingCallback;
		private GattCallbackWrapper mAdvertisingGattCallback;
		private final Handler mHandler; // Handler to post the advertise callback to run on main thread.
		private final Object mLock = new Object();

		/**
		* Get a handle to the default local Bluetooth adapter.
		@@ -435,6 +436,7 @@ public final class BluetoothAdapter {
		} catch (RemoteException e) {Log.e(TAG, "", e);}
		mManagerService = managerService;
		mLeScanClients = new HashMap<LeScanCallback, GattCallbackWrapper>();
		mHandler = new Handler(Looper.getMainLooper());
		}

		/**
		@@ -474,6 +476,7 @@ public final class BluetoothAdapter {

		/**
		* Returns a {@link BluetoothAdvScanData} object representing advertising data.
		* Data will be reset when bluetooth service is turned off.
		* @hide
		*/
		public BluetoothAdvScanData getAdvScanData() {
		@@ -494,19 +497,34 @@ public final class BluetoothAdapter {
		}
		}

		/**
		* Interface for BLE advertising callback.
		*
		* @hide
		*/
		public interface AdvertiseCallback {
		/**
		* Callback when advertise starts.
		* @param status - {@link #ADVERTISE_CALLBACK_SUCCESS} for success, others for failure.
		*/
		void onAdvertiseStart(int status);
		/**
		* Callback when advertise stops.
		* @param status - {@link #ADVERTISE_CALLBACK_SUCCESS} for success, others for failure.
		*/
		void onAdvertiseStop(int status);
		}

		/**
		* Start BLE advertising using current {@link BluetoothAdvScanData}.
		* An app should start advertising by requesting
		* {@link BluetoothAdapter#ACTION_START_ADVERTISING} instead of calling this method directly.
		* <p>Requires {@link android.Manifest.permission#BLUETOOTH_PRIVILEGED}
		*
		* @return true if BLE avertising succeeds, false otherwise.
		* @param callback - {@link AdvertiseCallback}
		* @return true if BLE advertising succeeds, false otherwise.
		* @hide
		*/
		public boolean startAdvertising() {
		public boolean startAdvertising(final AdvertiseCallback callback) {
		if (getState() != STATE_ON) return false;

		try {
		IBluetoothGatt iGatt = mManagerService.getBluetoothGatt();
		if (iGatt == null) {
		@@ -516,18 +534,31 @@ public final class BluetoothAdapter {
		// Restart/reset advertising packets if advertising is in progress.
		if (isAdvertising()) {
		// Invalid advertising callback.
		if (mAdvertisingCallback == null \|\| mAdvertisingCallback.mLeHandle == -1) {
		if (mAdvertisingGattCallback == null \|\| mAdvertisingGattCallback.mLeHandle == -1) {
		Log.e(TAG, "failed to restart advertising, invalid callback");
		return false;
		}
		iGatt.startAdvertising(mAdvertisingCallback.mLeHandle);
		iGatt.startAdvertising(mAdvertisingGattCallback.mLeHandle);
		// Run the callback from main thread.
		mHandler.post(new Runnable() {
		@Override
		public void run() {
		// callback with status success.
		callback.onAdvertiseStart(ADVERTISE_CALLBACK_SUCCESS);
		}
		});
		return true;
		}
		UUID uuid = UUID.randomUUID();
		GattCallbackWrapper wrapper =
		new GattCallbackWrapper(this, null, null, GattCallbackWrapper.CALLBACK_TYPE_ADV);
		new GattCallbackWrapper(this, null, null, callback);
		iGatt.registerClient(new ParcelUuid(uuid), wrapper);
		mAdvertisingCallback = wrapper;
		if (!wrapper.advertiseStarted()) {
		return false;
		}
		synchronized (mLock) {
		mAdvertisingGattCallback = wrapper;
		}
		return true;
		} catch (RemoteException e) {
		Log.e(TAG, "", e);
		@@ -537,25 +568,29 @@ public final class BluetoothAdapter {

		/**
		* Stop BLE advertising.
		* An app should stop advertising by requesting
		* {@link BluetoothAdapter#ACTION_STOP_ADVERTISING} instead of calling this method directly.
		* <p>Requires {@link android.Manifest.permission#BLUETOOTH_PRIVILEGED}
		*
		* @param callback - {@link AdvertiseCallback}
		* @return true if BLE advertising stops, false otherwise.
		* @hide
		*/
		public boolean stopAdvertisting() {
		public boolean stopAdvertising(AdvertiseCallback callback) {
		try {
		IBluetoothGatt iGatt = mManagerService.getBluetoothGatt();
		if (iGatt == null) {
		// BLE is not supported
		return false;
		}
		if (mAdvertisingCallback == null) {
		if (mAdvertisingGattCallback == null) {
		// no callback.
		return false;
		}
		mAdvertisingCallback.stopAdvertising();
		mAdvertisingCallback = null;
		// Make sure same callback is used for start and stop advertising.
		if (callback != mAdvertisingGattCallback.mAdvertiseCallback) {
		Log.e(TAG, "must use the same callback for star/stop advertising");
		return false;
		}
		mAdvertisingGattCallback.stopAdvertising();
		mAdvertisingGattCallback = null;
		return true;
		} catch (RemoteException e) {
		Log.e(TAG, "", e);
		@@ -1415,6 +1450,8 @@ public final class BluetoothAdapter {
		if (VDBG) Log.d(TAG, "onBluetoothServiceDown: " + mService);
		synchronized (mManagerCallback) {
		mService = null;
		// Reset bluetooth adv scan data when Gatt service is down.
		mBluetoothAdvScanData = null;
		for (IBluetoothManagerCallback cb : mProxyServiceStateCallbacks ){
		try {
		if (cb != null) {
		@@ -1689,11 +1726,9 @@ public final class BluetoothAdapter {
		private static class GattCallbackWrapper extends IBluetoothGattCallback.Stub {
		private static final int LE_CALLBACK_REG_TIMEOUT = 2000;
		private static final int LE_CALLBACK_REG_WAIT_COUNT = 5;
		private static final int CALLBACK_TYPE_SCAN = 0;
		private static final int CALLBACK_TYPE_ADV = 1;

		private final AdvertiseCallback mAdvertiseCallback;
		private final LeScanCallback mLeScanCb;
		private int mCallbackType;

		// mLeHandle 0: not registered
		// -1: scan stopped
		@@ -1708,26 +1743,34 @@ public final class BluetoothAdapter {
		mLeScanCb = leScanCb;
		mScanFilter = uuid;
		mLeHandle = 0;
		mCallbackType = CALLBACK_TYPE_SCAN;
		mAdvertiseCallback = null;
		}

		public GattCallbackWrapper(BluetoothAdapter bluetoothAdapter, LeScanCallback leScanCb,
		UUID[] uuid, int type) {
		UUID[] uuid, AdvertiseCallback callback) {
		mBluetoothAdapter = new WeakReference<BluetoothAdapter>(bluetoothAdapter);
		mLeScanCb = leScanCb;
		mScanFilter = uuid;
		mLeHandle = 0;
		mCallbackType = type;
		mAdvertiseCallback = callback;
		}

		public boolean scanStarted() {
		return waitForRegisteration(LE_CALLBACK_REG_WAIT_COUNT);
		}

		public boolean advertiseStarted() {
		// Wait for registeration callback.
		return waitForRegisteration(1);
		}

		private boolean waitForRegisteration(int maxWaitCount) {
		boolean started = false;
		synchronized(this) {
		if (mLeHandle == -1) return false;

		int count = 0;
		// wait for callback registration and LE scan to start
		while (mLeHandle == 0 && count < LE_CALLBACK_REG_WAIT_COUNT) {
		while (mLeHandle == 0 && count < maxWaitCount) {
		try {
		wait(LE_CALLBACK_REG_TIMEOUT);
		} catch (InterruptedException e) {
		@@ -1751,7 +1794,7 @@ public final class BluetoothAdapter {
		try {
		IBluetoothGatt iGatt = adapter.getBluetoothManager().getBluetoothGatt();
		iGatt.stopAdvertising();
		Log.d(TAG, "unregeistering client " + mLeHandle);
		Log.d(TAG, "unregistering client " + mLeHandle);
		iGatt.unregisterClient(mLeHandle);
		} catch (RemoteException e) {
		Log.e(TAG, "Failed to stop advertising and unregister" + e);
		@@ -1805,7 +1848,7 @@ public final class BluetoothAdapter {
		BluetoothAdapter adapter = mBluetoothAdapter.get();
		if (adapter != null) {
		iGatt = adapter.getBluetoothManager().getBluetoothGatt();
		if (mCallbackType == CALLBACK_TYPE_ADV) {
		if (mAdvertiseCallback != null) {
		iGatt.startAdvertising(mLeHandle);
		} else {
		if (mScanFilter == null) {
		@@ -1855,7 +1898,7 @@ public final class BluetoothAdapter {
		* @hide
		*/
		public void onScanResult(String address, int rssi, byte[] advData) {
		if (DBG) Log.d(TAG, "onScanResult() - Device=" + address + " RSSI=" +rssi);
		if (VDBG) Log.d(TAG, "onScanResult() - Device=" + address + " RSSI=" +rssi);

		// Check null in case the scan has been stopped
		synchronized(this) {
		@@ -1944,9 +1987,13 @@ public final class BluetoothAdapter {
		// no op
		}

		public void onListen(int status) {
		// no op
		public void onAdvertiseStateChange(int advertiseState, int status) {
		Log.d(TAG, "on advertise call back, state: " + advertiseState + " status: " + status);
		if (advertiseState == STATE_ADVERTISE_STARTED) {
		mAdvertiseCallback.onAdvertiseStart(status);
		} else {
		mAdvertiseCallback.onAdvertiseStop(status);
		}
		}
		}

		}

core/java/android/bluetooth/BluetoothAdvScanData.java

+6 −1

Original line number	Diff line number	Diff line
		@@ -77,6 +77,7 @@ public final class BluetoothAdvScanData {
		try {
		return mBluetoothGatt.setAdvManufacturerCodeAndData(manufacturerCode, manufacturerData);
		} catch (RemoteException e) {
		Log.e(TAG, "Unable to set manufacturer id and data.", e);
		return false;
		}
		}
		@@ -92,6 +93,7 @@ public final class BluetoothAdvScanData {
		try {
		return mBluetoothGatt.setAdvServiceData(serviceData);
		} catch (RemoteException e) {
		Log.e(TAG, "Unable to set service data.", e);
		return false;
		}
		}
		@@ -103,6 +105,7 @@ public final class BluetoothAdvScanData {
		try {
		return Collections.unmodifiableList(mBluetoothGatt.getAdvServiceUuids());
		} catch (RemoteException e) {
		Log.e(TAG, "Unable to get service uuids.", e);
		return null;
		}
		}
		@@ -115,6 +118,7 @@ public final class BluetoothAdvScanData {
		try {
		return mBluetoothGatt.getAdvManufacturerData();
		} catch (RemoteException e) {
		Log.e(TAG, "Unable to get manufacturer data.", e);
		return null;
		}
		}
		@@ -127,6 +131,7 @@ public final class BluetoothAdvScanData {
		try {
		return mBluetoothGatt.getAdvServiceData();
		} catch (RemoteException e) {
		Log.e(TAG, "Unable to get service data.", e);
		return null;
		}
		}
		@@ -140,7 +145,7 @@ public final class BluetoothAdvScanData {
		try {
		mBluetoothGatt.removeAdvManufacturerCodeAndData(manufacturerCode);
		} catch (RemoteException e) {
		Log.e(TAG, e.toString());
		Log.e(TAG, "Unable to remove manufacturer : " + manufacturerCode, e);
		}
		}
		}

core/java/android/bluetooth/BluetoothGatt.java

+9 −2

Original line number	Diff line number	Diff line
		@@ -16,8 +16,6 @@

		package android.bluetooth;

		import android.bluetooth.BluetoothDevice;
		import android.bluetooth.BluetoothProfile;
		import android.content.Context;
		import android.os.ParcelUuid;
		import android.os.RemoteException;
		@@ -544,6 +542,15 @@ public final class BluetoothGatt implements BluetoothProfile {
		Log.w(TAG, "Unhandled exception in callback", ex);
		}
		}

		/**
		* Advertise state change callback
		* @hide
		*/
		public void onAdvertiseStateChange(int state, int status) {
		if (DBG) Log.d(TAG, "onAdvertiseStateChange() - state = "
		+ state + " status=" + status);
		}
		};

		/package/ BluetoothGatt(Context context, IBluetoothGatt iGatt, BluetoothDevice device) {

core/java/android/bluetooth/IBluetoothGattCallback.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -63,4 +63,5 @@ interface IBluetoothGattCallback {
		in int charInstId, in ParcelUuid charUuid,
		in byte[] value);
		void onReadRemoteRssi(in String address, in int rssi, in int status);
		oneway void onAdvertiseStateChange(in int advertiseState, in int status);
		}