| /* |
| * Copyright (C) 2016 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.net.wifi.WifiScanner; |
| import android.util.Log; |
| |
| import com.android.server.wifi.WifiNative; |
| |
| /** |
| * KnownBandsChannelHelper that uses band to channel mappings retrieved from wificond. |
| * Also supporting updating the channel list from the wificond on demand. |
| */ |
| public class WificondChannelHelper extends KnownBandsChannelHelper { |
| private static final String TAG = "WificondChannelHelper"; |
| |
| private final WifiNative mWifiNative; |
| |
| public WificondChannelHelper(WifiNative wifiNative) { |
| mWifiNative = wifiNative; |
| final int[] emptyFreqList = new int[0]; |
| setBandChannels(emptyFreqList, emptyFreqList, emptyFreqList, emptyFreqList, emptyFreqList); |
| updateChannels(); |
| } |
| |
| @Override |
| public void updateChannels() { |
| int[] channels24G = |
| mWifiNative.getChannelsForBand(WifiScanner.WIFI_BAND_24_GHZ); |
| if (channels24G == null) Log.e(TAG, "Failed to get channels for 2.4GHz band"); |
| int[] channels5G = mWifiNative.getChannelsForBand(WifiScanner.WIFI_BAND_5_GHZ); |
| if (channels5G == null) Log.e(TAG, "Failed to get channels for 5GHz band"); |
| int[] channelsDfs = |
| mWifiNative.getChannelsForBand(WifiScanner.WIFI_BAND_5_GHZ_DFS_ONLY); |
| if (channelsDfs == null) Log.e(TAG, "Failed to get channels for 5GHz DFS only band"); |
| int[] channels6G = |
| mWifiNative.getChannelsForBand(WifiScanner.WIFI_BAND_6_GHZ); |
| if (channels6G == null) Log.e(TAG, "Failed to get channels for 6GHz band"); |
| int[] channels60G = |
| mWifiNative.getChannelsForBand(WifiScanner.WIFI_BAND_60_GHZ); |
| if (channels60G == null) Log.e(TAG, "Failed to get channels for 60GHz band"); |
| |
| if (channels24G == null || channels5G == null || channelsDfs == null |
| || channels6G == null || channels60G == null) { |
| Log.e(TAG, "Failed to get all channels for band, not updating band channel lists"); |
| } else if (channels24G.length > 0 || channels5G.length > 0 || channelsDfs.length > 0 |
| || channels6G.length > 0 || channels60G.length > 0) { |
| setBandChannels(channels24G, channels5G, channelsDfs, channels6G, channels60G); |
| } else { |
| Log.e(TAG, "Got zero length for all channel lists"); |
| } |
| } |
| } |