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/*
* 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, WifiNative wifiNative, WifiMonitor wifiMonitor,
Looper looper, Clock clock) {
mWifiNative = wifiNative;
mChannelHelper = new HalChannelHelper(wifiNative);
mWificondScannerDelegate =
new WificondScannerImpl(context, 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(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(settings, eventHandler);
}
@Override
public void stopBatchedScan() {
mWifiNative.stopBgScan();
}
@Override
public void pauseBatchedScan() {
mWifiNative.pauseBgScan();
}
@Override
public void restartBatchedScan() {
mWifiNative.restartBgScan();
}
@Override
public WifiScanner.ScanData[] getLatestBatchedScanResults(boolean flush) {
return mWifiNative.getBgScanResults();
}
@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
public boolean shouldScheduleBackgroundScanForHwPno() {
return mWificondScannerDelegate.shouldScheduleBackgroundScanForHwPno();
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
mWificondScannerDelegate.dump(fd, pw, args);
}
}
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