| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.wifi.scanner; |
| |
| import android.content.Context; |
| import android.net.wifi.WifiScanner; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.util.Log; |
| |
| import com.android.server.wifi.Clock; |
| import com.android.server.wifi.WifiMonitor; |
| import com.android.server.wifi.WifiNative; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| |
| /** |
| * WifiScanner implementation that takes advantage of the gscan HAL API |
| * The gscan API is used to perform background scans and wificond is used for oneshot scans. |
| * @see com.android.server.wifi.scanner.WifiScannerImpl for more details on each method. |
| */ |
| public class HalWifiScannerImpl extends WifiScannerImpl implements Handler.Callback { |
| private static final String TAG = "HalWifiScannerImpl"; |
| private static final boolean DBG = false; |
| |
| private final WifiNative mWifiNative; |
| private final ChannelHelper mChannelHelper; |
| private final WificondScannerImpl mWificondScannerDelegate; |
| |
| public HalWifiScannerImpl(Context context, String ifaceName, WifiNative wifiNative, |
| WifiMonitor wifiMonitor, Looper looper, Clock clock) { |
| super(ifaceName); |
| mWifiNative = wifiNative; |
| mChannelHelper = new WificondChannelHelper(wifiNative); |
| mWificondScannerDelegate = |
| new WificondScannerImpl(context, getIfaceName(), wifiNative, wifiMonitor, |
| mChannelHelper, looper, clock); |
| } |
| |
| @Override |
| public boolean handleMessage(Message msg) { |
| Log.w(TAG, "Unknown message received: " + msg.what); |
| return true; |
| } |
| |
| @Override |
| public void cleanup() { |
| mWificondScannerDelegate.cleanup(); |
| } |
| |
| @Override |
| public boolean getScanCapabilities(WifiNative.ScanCapabilities capabilities) { |
| return mWifiNative.getBgScanCapabilities( |
| getIfaceName(), capabilities); |
| } |
| |
| @Override |
| public ChannelHelper getChannelHelper() { |
| return mChannelHelper; |
| } |
| |
| public boolean startSingleScan(WifiNative.ScanSettings settings, |
| WifiNative.ScanEventHandler eventHandler) { |
| return mWificondScannerDelegate.startSingleScan(settings, eventHandler); |
| } |
| |
| @Override |
| public WifiScanner.ScanData getLatestSingleScanResults() { |
| return mWificondScannerDelegate.getLatestSingleScanResults(); |
| } |
| |
| @Override |
| public boolean startBatchedScan(WifiNative.ScanSettings settings, |
| WifiNative.ScanEventHandler eventHandler) { |
| if (settings == null || eventHandler == null) { |
| Log.w(TAG, "Invalid arguments for startBatched: settings=" + settings |
| + ",eventHandler=" + eventHandler); |
| return false; |
| } |
| return mWifiNative.startBgScan( |
| getIfaceName(), settings, eventHandler); |
| } |
| |
| @Override |
| public void stopBatchedScan() { |
| mWifiNative.stopBgScan(getIfaceName()); |
| } |
| |
| @Override |
| public void pauseBatchedScan() { |
| mWifiNative.pauseBgScan(getIfaceName()); |
| } |
| |
| @Override |
| public void restartBatchedScan() { |
| mWifiNative.restartBgScan(getIfaceName()); |
| } |
| |
| @Override |
| public WifiScanner.ScanData[] getLatestBatchedScanResults(boolean flush) { |
| return mWifiNative.getBgScanResults(getIfaceName()); |
| } |
| |
| @Override |
| public boolean setHwPnoList(WifiNative.PnoSettings settings, |
| WifiNative.PnoEventHandler eventHandler) { |
| return mWificondScannerDelegate.setHwPnoList(settings, eventHandler); |
| } |
| |
| @Override |
| public boolean resetHwPnoList() { |
| return mWificondScannerDelegate.resetHwPnoList(); |
| } |
| |
| @Override |
| public boolean isHwPnoSupported(boolean isConnectedPno) { |
| return mWificondScannerDelegate.isHwPnoSupported(isConnectedPno); |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| mWificondScannerDelegate.dump(fd, pw, args); |
| } |
| } |