Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| 5 | * use this file except in compliance with the License. You may obtain a copy of |
| 6 | * the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 12 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 13 | * License for the specific language governing permissions and limitations under |
| 14 | * the License. |
| 15 | */ |
| 16 | |
| 17 | package android.bluetooth.le; |
| 18 | |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 19 | import android.annotation.SystemApi; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 20 | import android.bluetooth.BluetoothAdapter; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 21 | import android.bluetooth.BluetoothGatt; |
Wei Wang | e0d4afb | 2014-07-29 21:34:25 -0700 | [diff] [blame] | 22 | import android.bluetooth.BluetoothGattCallbackWrapper; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 23 | import android.bluetooth.IBluetoothGatt; |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 24 | import android.bluetooth.IBluetoothManager; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 25 | import android.os.Handler; |
| 26 | import android.os.Looper; |
| 27 | import android.os.ParcelUuid; |
| 28 | import android.os.RemoteException; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 29 | import android.util.Log; |
| 30 | |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 31 | import java.util.ArrayList; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 32 | import java.util.HashMap; |
| 33 | import java.util.List; |
| 34 | import java.util.Map; |
| 35 | import java.util.UUID; |
| 36 | |
| 37 | /** |
| 38 | * This class provides methods to perform scan related operations for Bluetooth LE devices. An |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 39 | * application can scan for a particular type of Bluetotoh LE devices using {@link ScanFilter}. It |
| 40 | * can also request different types of callbacks for delivering the result. |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 41 | * <p> |
| 42 | * Use {@link BluetoothAdapter#getBluetoothLeScanner()} to get an instance of |
| 43 | * {@link BluetoothLeScanner}. |
| 44 | * <p> |
Wei Wang | af74e66 | 2014-07-09 14:03:42 -0700 | [diff] [blame] | 45 | * <b>Note:</b> Most of the scan methods here require |
| 46 | * {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 47 | * |
| 48 | * @see ScanFilter |
| 49 | */ |
| 50 | public final class BluetoothLeScanner { |
| 51 | |
| 52 | private static final String TAG = "BluetoothLeScanner"; |
| 53 | private static final boolean DBG = true; |
Wei Wang | 020bd7b | 2014-10-16 19:39:52 -0700 | [diff] [blame] | 54 | private static final boolean VDBG = false; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 55 | |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 56 | private final IBluetoothManager mBluetoothManager; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 57 | private final Handler mHandler; |
Prerepa Viswanadham | 8e5270f | 2014-07-08 16:33:34 -0700 | [diff] [blame] | 58 | private BluetoothAdapter mBluetoothAdapter; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 59 | private final Map<ScanCallback, BleScanCallbackWrapper> mLeScanClients; |
| 60 | |
| 61 | /** |
Wei Wang | af74e66 | 2014-07-09 14:03:42 -0700 | [diff] [blame] | 62 | * Use {@link BluetoothAdapter#getBluetoothLeScanner()} instead. |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 63 | * |
| 64 | * @param bluetoothManager BluetoothManager that conducts overall Bluetooth Management. |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 65 | * @hide |
| 66 | */ |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 67 | public BluetoothLeScanner(IBluetoothManager bluetoothManager) { |
| 68 | mBluetoothManager = bluetoothManager; |
Prerepa Viswanadham | 8e5270f | 2014-07-08 16:33:34 -0700 | [diff] [blame] | 69 | mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 70 | mHandler = new Handler(Looper.getMainLooper()); |
| 71 | mLeScanClients = new HashMap<ScanCallback, BleScanCallbackWrapper>(); |
| 72 | } |
| 73 | |
| 74 | /** |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 75 | * Start Bluetooth LE scan with default parameters and no filters. The scan results will be |
| 76 | * delivered through {@code callback}. |
Wei Wang | af74e66 | 2014-07-09 14:03:42 -0700 | [diff] [blame] | 77 | * <p> |
| 78 | * Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. |
| 79 | * |
| 80 | * @param callback Callback used to deliver scan results. |
| 81 | * @throws IllegalArgumentException If {@code callback} is null. |
| 82 | */ |
| 83 | public void startScan(final ScanCallback callback) { |
| 84 | if (callback == null) { |
| 85 | throw new IllegalArgumentException("callback is null"); |
| 86 | } |
Wei Wang | 833559d | 2014-08-29 10:26:13 -0700 | [diff] [blame] | 87 | startScan(null, new ScanSettings.Builder().build(), callback); |
Wei Wang | af74e66 | 2014-07-09 14:03:42 -0700 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | /** |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 91 | * Start Bluetooth LE scan. The scan results will be delivered through {@code callback}. |
| 92 | * <p> |
| 93 | * Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. |
| 94 | * |
| 95 | * @param filters {@link ScanFilter}s for finding exact BLE devices. |
Wei Wang | af74e66 | 2014-07-09 14:03:42 -0700 | [diff] [blame] | 96 | * @param settings Settings for the scan. |
| 97 | * @param callback Callback used to deliver scan results. |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 98 | * @throws IllegalArgumentException If {@code settings} or {@code callback} is null. |
| 99 | */ |
| 100 | public void startScan(List<ScanFilter> filters, ScanSettings settings, |
| 101 | final ScanCallback callback) { |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 102 | startScan(filters, settings, callback, null); |
| 103 | } |
| 104 | |
| 105 | private void startScan(List<ScanFilter> filters, ScanSettings settings, |
| 106 | final ScanCallback callback, List<List<ResultStorageDescriptor>> resultStorages) { |
Wei Wang | 833559d | 2014-08-29 10:26:13 -0700 | [diff] [blame] | 107 | BluetoothLeUtils.checkAdapterStateOn(mBluetoothAdapter); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 108 | if (settings == null || callback == null) { |
| 109 | throw new IllegalArgumentException("settings or callback is null"); |
| 110 | } |
| 111 | synchronized (mLeScanClients) { |
| 112 | if (mLeScanClients.containsKey(callback)) { |
| 113 | postCallbackError(callback, ScanCallback.SCAN_FAILED_ALREADY_STARTED); |
| 114 | return; |
| 115 | } |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 116 | IBluetoothGatt gatt; |
| 117 | try { |
| 118 | gatt = mBluetoothManager.getBluetoothGatt(); |
| 119 | } catch (RemoteException e) { |
| 120 | gatt = null; |
| 121 | } |
| 122 | if (gatt == null) { |
Wei Wang | af74e66 | 2014-07-09 14:03:42 -0700 | [diff] [blame] | 123 | postCallbackError(callback, ScanCallback.SCAN_FAILED_INTERNAL_ERROR); |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 124 | return; |
| 125 | } |
Prerepa Viswanadham | 8e5270f | 2014-07-08 16:33:34 -0700 | [diff] [blame] | 126 | if (!isSettingsConfigAllowedForScan(settings)) { |
| 127 | postCallbackError(callback, |
| 128 | ScanCallback.SCAN_FAILED_FEATURE_UNSUPPORTED); |
| 129 | return; |
| 130 | } |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 131 | BleScanCallbackWrapper wrapper = new BleScanCallbackWrapper(gatt, filters, |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 132 | settings, callback, resultStorages); |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 133 | wrapper.startRegisteration(); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 134 | } |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Stops an ongoing Bluetooth LE scan. |
| 139 | * <p> |
| 140 | * Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. |
| 141 | * |
| 142 | * @param callback |
| 143 | */ |
| 144 | public void stopScan(ScanCallback callback) { |
Wei Wang | 833559d | 2014-08-29 10:26:13 -0700 | [diff] [blame] | 145 | BluetoothLeUtils.checkAdapterStateOn(mBluetoothAdapter); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 146 | synchronized (mLeScanClients) { |
| 147 | BleScanCallbackWrapper wrapper = mLeScanClients.remove(callback); |
| 148 | if (wrapper == null) { |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 149 | if (DBG) Log.d(TAG, "could not find callback wrapper"); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 150 | return; |
| 151 | } |
| 152 | wrapper.stopLeScan(); |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | /** |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 157 | * Flush pending batch scan results stored in Bluetooth controller. This will return Bluetooth |
| 158 | * LE scan results batched on bluetooth controller. Returns immediately, batch scan results data |
| 159 | * will be delivered through the {@code callback}. |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 160 | * |
| 161 | * @param callback Callback of the Bluetooth LE Scan, it has to be the same instance as the one |
| 162 | * used to start scan. |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 163 | */ |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 164 | public void flushPendingScanResults(ScanCallback callback) { |
Wei Wang | 833559d | 2014-08-29 10:26:13 -0700 | [diff] [blame] | 165 | BluetoothLeUtils.checkAdapterStateOn(mBluetoothAdapter); |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 166 | if (callback == null) { |
| 167 | throw new IllegalArgumentException("callback cannot be null!"); |
| 168 | } |
| 169 | synchronized (mLeScanClients) { |
| 170 | BleScanCallbackWrapper wrapper = mLeScanClients.get(callback); |
| 171 | if (wrapper == null) { |
| 172 | return; |
| 173 | } |
| 174 | wrapper.flushPendingBatchResults(); |
| 175 | } |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | /** |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 179 | * Start truncated scan. |
| 180 | * |
| 181 | * @hide |
| 182 | */ |
| 183 | @SystemApi |
| 184 | public void startTruncatedScan(List<TruncatedFilter> truncatedFilters, ScanSettings settings, |
| 185 | final ScanCallback callback) { |
| 186 | int filterSize = truncatedFilters.size(); |
| 187 | List<ScanFilter> scanFilters = new ArrayList<ScanFilter>(filterSize); |
| 188 | List<List<ResultStorageDescriptor>> scanStorages = |
| 189 | new ArrayList<List<ResultStorageDescriptor>>(filterSize); |
| 190 | for (TruncatedFilter filter : truncatedFilters) { |
| 191 | scanFilters.add(filter.getFilter()); |
| 192 | scanStorages.add(filter.getStorageDescriptors()); |
| 193 | } |
| 194 | startScan(scanFilters, settings, callback, scanStorages); |
| 195 | } |
| 196 | |
| 197 | /** |
Wei Wang | ee80922 | 2014-08-12 22:16:32 -0700 | [diff] [blame] | 198 | * Cleans up scan clients. Should be called when bluetooth is down. |
| 199 | * |
| 200 | * @hide |
| 201 | */ |
| 202 | public void cleanup() { |
| 203 | mLeScanClients.clear(); |
| 204 | } |
| 205 | |
| 206 | /** |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 207 | * Bluetooth GATT interface callbacks |
| 208 | */ |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 209 | private class BleScanCallbackWrapper extends BluetoothGattCallbackWrapper { |
| 210 | private static final int REGISTRATION_CALLBACK_TIMEOUT_MILLIS = 2000; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 211 | |
| 212 | private final ScanCallback mScanCallback; |
| 213 | private final List<ScanFilter> mFilters; |
| 214 | private ScanSettings mSettings; |
| 215 | private IBluetoothGatt mBluetoothGatt; |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 216 | private List<List<ResultStorageDescriptor>> mResultStorages; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 217 | |
| 218 | // mLeHandle 0: not registered |
| 219 | // -1: scan stopped |
| 220 | // > 0: registered and scan started |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 221 | private int mClientIf; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 222 | |
| 223 | public BleScanCallbackWrapper(IBluetoothGatt bluetoothGatt, |
| 224 | List<ScanFilter> filters, ScanSettings settings, |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 225 | ScanCallback scanCallback, List<List<ResultStorageDescriptor>> resultStorages) { |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 226 | mBluetoothGatt = bluetoothGatt; |
| 227 | mFilters = filters; |
| 228 | mSettings = settings; |
| 229 | mScanCallback = scanCallback; |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 230 | mClientIf = 0; |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 231 | mResultStorages = resultStorages; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 232 | } |
| 233 | |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 234 | public void startRegisteration() { |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 235 | synchronized (this) { |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 236 | // Scan stopped. |
| 237 | if (mClientIf == -1) return; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 238 | try { |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 239 | UUID uuid = UUID.randomUUID(); |
| 240 | mBluetoothGatt.registerClient(new ParcelUuid(uuid), this); |
| 241 | wait(REGISTRATION_CALLBACK_TIMEOUT_MILLIS); |
| 242 | } catch (InterruptedException | RemoteException e) { |
| 243 | Log.e(TAG, "application registeration exception", e); |
| 244 | postCallbackError(mScanCallback, ScanCallback.SCAN_FAILED_INTERNAL_ERROR); |
| 245 | } |
| 246 | if (mClientIf > 0) { |
| 247 | mLeScanClients.put(mScanCallback, this); |
| 248 | } else { |
| 249 | postCallbackError(mScanCallback, |
| 250 | ScanCallback.SCAN_FAILED_APPLICATION_REGISTRATION_FAILED); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 251 | } |
| 252 | } |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | public void stopLeScan() { |
| 256 | synchronized (this) { |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 257 | if (mClientIf <= 0) { |
| 258 | Log.e(TAG, "Error state, mLeHandle: " + mClientIf); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 259 | return; |
| 260 | } |
| 261 | try { |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 262 | mBluetoothGatt.stopScan(mClientIf, false); |
| 263 | mBluetoothGatt.unregisterClient(mClientIf); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 264 | } catch (RemoteException e) { |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 265 | Log.e(TAG, "Failed to stop scan and unregister", e); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 266 | } |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 267 | mClientIf = -1; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 268 | } |
| 269 | } |
| 270 | |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 271 | void flushPendingBatchResults() { |
| 272 | synchronized (this) { |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 273 | if (mClientIf <= 0) { |
| 274 | Log.e(TAG, "Error state, mLeHandle: " + mClientIf); |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 275 | return; |
| 276 | } |
| 277 | try { |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 278 | mBluetoothGatt.flushPendingBatchResults(mClientIf, false); |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 279 | } catch (RemoteException e) { |
| 280 | Log.e(TAG, "Failed to get pending scan results", e); |
| 281 | } |
| 282 | } |
| 283 | } |
| 284 | |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 285 | /** |
| 286 | * Application interface registered - app is ready to go |
| 287 | */ |
| 288 | @Override |
| 289 | public void onClientRegistered(int status, int clientIf) { |
| 290 | Log.d(TAG, "onClientRegistered() - status=" + status + |
| 291 | " clientIf=" + clientIf); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 292 | synchronized (this) { |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 293 | if (mClientIf == -1) { |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 294 | if (DBG) Log.d(TAG, "onClientRegistered LE scan canceled"); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 295 | } |
| 296 | |
| 297 | if (status == BluetoothGatt.GATT_SUCCESS) { |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 298 | mClientIf = clientIf; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 299 | try { |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 300 | mBluetoothGatt.startScan(mClientIf, false, mSettings, mFilters, |
| 301 | mResultStorages); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 302 | } catch (RemoteException e) { |
| 303 | Log.e(TAG, "fail to start le scan: " + e); |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 304 | mClientIf = -1; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 305 | } |
| 306 | } else { |
| 307 | // registration failed |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 308 | mClientIf = -1; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 309 | } |
| 310 | notifyAll(); |
| 311 | } |
| 312 | } |
| 313 | |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 314 | /** |
| 315 | * Callback reporting an LE scan result. |
| 316 | * |
| 317 | * @hide |
| 318 | */ |
| 319 | @Override |
Wei Wang | e0d4afb | 2014-07-29 21:34:25 -0700 | [diff] [blame] | 320 | public void onScanResult(final ScanResult scanResult) { |
Wei Wang | 020bd7b | 2014-10-16 19:39:52 -0700 | [diff] [blame] | 321 | if (VDBG) Log.d(TAG, "onScanResult() - " + scanResult.toString()); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 322 | |
| 323 | // Check null in case the scan has been stopped |
| 324 | synchronized (this) { |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 325 | if (mClientIf <= 0) return; |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 326 | } |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 327 | Handler handler = new Handler(Looper.getMainLooper()); |
| 328 | handler.post(new Runnable() { |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 329 | @Override |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 330 | public void run() { |
Wei Wang | e0d4afb | 2014-07-29 21:34:25 -0700 | [diff] [blame] | 331 | mScanCallback.onScanResult(ScanSettings.CALLBACK_TYPE_ALL_MATCHES, scanResult); |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 332 | } |
| 333 | }); |
| 334 | |
| 335 | } |
| 336 | |
| 337 | @Override |
| 338 | public void onBatchScanResults(final List<ScanResult> results) { |
| 339 | Handler handler = new Handler(Looper.getMainLooper()); |
| 340 | handler.post(new Runnable() { |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 341 | @Override |
Wei Wang | 9fb1791 | 2014-07-01 15:10:06 -0700 | [diff] [blame] | 342 | public void run() { |
| 343 | mScanCallback.onBatchScanResults(results); |
| 344 | } |
| 345 | }); |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 346 | } |
| 347 | |
| 348 | @Override |
Prerepa Viswanadham | d5324e4 | 2014-08-07 09:44:20 -0700 | [diff] [blame] | 349 | public void onFoundOrLost(final boolean onFound, final ScanResult scanResult) { |
Wei Wang | 020bd7b | 2014-10-16 19:39:52 -0700 | [diff] [blame] | 350 | if (VDBG) { |
Prerepa Viswanadham | d5324e4 | 2014-08-07 09:44:20 -0700 | [diff] [blame] | 351 | Log.d(TAG, "onFoundOrLost() - onFound = " + onFound + |
| 352 | " " + scanResult.toString()); |
Prerepa Viswanadham | 8f2e74c | 2014-07-09 12:51:59 -0700 | [diff] [blame] | 353 | } |
Prerepa Viswanadham | d5324e4 | 2014-08-07 09:44:20 -0700 | [diff] [blame] | 354 | |
| 355 | // Check null in case the scan has been stopped |
| 356 | synchronized (this) { |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 357 | if (mClientIf <= 0) |
| 358 | return; |
Prerepa Viswanadham | 8f2e74c | 2014-07-09 12:51:59 -0700 | [diff] [blame] | 359 | } |
Prerepa Viswanadham | d5324e4 | 2014-08-07 09:44:20 -0700 | [diff] [blame] | 360 | Handler handler = new Handler(Looper.getMainLooper()); |
| 361 | handler.post(new Runnable() { |
| 362 | @Override |
| 363 | public void run() { |
| 364 | if (onFound) { |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 365 | mScanCallback.onScanResult(ScanSettings.CALLBACK_TYPE_FIRST_MATCH, |
| 366 | scanResult); |
Prerepa Viswanadham | d5324e4 | 2014-08-07 09:44:20 -0700 | [diff] [blame] | 367 | } else { |
Wei Wang | 0d0df3c | 2014-07-30 15:19:08 -0700 | [diff] [blame] | 368 | mScanCallback.onScanResult(ScanSettings.CALLBACK_TYPE_MATCH_LOST, |
| 369 | scanResult); |
Prerepa Viswanadham | d5324e4 | 2014-08-07 09:44:20 -0700 | [diff] [blame] | 370 | } |
| 371 | } |
| 372 | }); |
Prerepa Viswanadham | 8f2e74c | 2014-07-09 12:51:59 -0700 | [diff] [blame] | 373 | } |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 374 | } |
| 375 | |
| 376 | private void postCallbackError(final ScanCallback callback, final int errorCode) { |
| 377 | mHandler.post(new Runnable() { |
Wei Wang | b661bb7 | 2014-08-18 16:08:00 -0700 | [diff] [blame] | 378 | @Override |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 379 | public void run() { |
| 380 | callback.onScanFailed(errorCode); |
| 381 | } |
| 382 | }); |
| 383 | } |
Prerepa Viswanadham | 8e5270f | 2014-07-08 16:33:34 -0700 | [diff] [blame] | 384 | |
| 385 | private boolean isSettingsConfigAllowedForScan(ScanSettings settings) { |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 386 | if (mBluetoothAdapter.isOffloadedFilteringSupported()) { |
| 387 | return true; |
Prerepa Viswanadham | 8e5270f | 2014-07-08 16:33:34 -0700 | [diff] [blame] | 388 | } |
Wei Wang | 685c1758 | 2014-07-16 22:02:03 -0700 | [diff] [blame] | 389 | final int callbackType = settings.getCallbackType(); |
| 390 | // Only support regular scan if no offloaded filter support. |
| 391 | if (callbackType == ScanSettings.CALLBACK_TYPE_ALL_MATCHES |
| 392 | && settings.getReportDelayMillis() == 0) { |
| 393 | return true; |
| 394 | } |
| 395 | return false; |
Prerepa Viswanadham | 8e5270f | 2014-07-08 16:33:34 -0700 | [diff] [blame] | 396 | } |
Wei Wang | 6d81118 | 2014-05-22 12:10:25 -0700 | [diff] [blame] | 397 | } |