| /* |
| * Copyright (C) 2017 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.settings.wifi.tether; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.net.wifi.WifiConfiguration; |
| import android.util.Log; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.ListPreference; |
| import androidx.preference.Preference; |
| |
| import com.android.settings.R; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| public class WifiTetherApBandPreferenceController extends WifiTetherBasePreferenceController { |
| |
| private static final String TAG = "WifiTetherApBandPref"; |
| private static final String PREF_KEY = "wifi_tether_network_ap_band"; |
| |
| private String[] mBandEntries; |
| private String[] mBandSummaries; |
| private int mBandIndex; |
| private int mSecurityType; |
| private boolean isDualMode; |
| private boolean isVendorDualApSupported; |
| private final Context mContext; |
| |
| public WifiTetherApBandPreferenceController(Context context, |
| OnTetherConfigUpdateListener listener) { |
| super(context, listener); |
| mContext = context; |
| final WifiConfiguration config = mWifiManager.getWifiApConfiguration(); |
| isDualMode = mWifiManager.isDualModeSupported(); |
| |
| isVendorDualApSupported = context.getResources().getBoolean( |
| com.android.internal.R.bool.config_wifi_dual_sap_mode_enabled); |
| |
| updatePreferenceEntries(config); |
| } |
| |
| @Override |
| public void updateDisplay() { |
| final WifiConfiguration config = mWifiManager.getWifiApConfiguration(); |
| int tempBandIndex = mBandIndex; |
| if (config == null) { |
| mBandIndex = 0; |
| Log.d(TAG, "Updating band index to 0 because no config"); |
| } else if (is5GhzBandSupported() || is6GhzBandSupported()) { |
| mBandIndex = validateSelection(config); |
| Log.d(TAG, "Updating band index to " + mBandIndex); |
| } else { |
| config.apBand = 0; |
| mWifiManager.setWifiApConfiguration(config); |
| mBandIndex = config.apBand; |
| Log.d(TAG, "5Ghz not supported, updating band index to " + mBandIndex); |
| } |
| ListPreference preference = |
| (ListPreference) mPreference; |
| preference.setEntries(mBandSummaries); |
| preference.setEntryValues(mBandEntries); |
| |
| if (preference.findIndexOfValue(String.valueOf(mBandIndex)) >= mBandEntries.length) { |
| mBandIndex = tempBandIndex < mBandEntries.length ? tempBandIndex : 0; |
| } |
| |
| if (!is5GhzBandSupported() && !is6GhzBandSupported()) { |
| preference.setEnabled(false); |
| preference.setSummary(R.string.wifi_ap_choose_2G); |
| } else { |
| preference.setEnabled(true); |
| preference.setValue(Integer.toString(config.apBand)); |
| preference.setSummary(getConfigSummary()); |
| } |
| } |
| |
| String getConfigSummary() { |
| if (mBandIndex == WifiConfiguration.AP_BAND_ANY) { |
| return mContext.getString(R.string.wifi_ap_prefer_5G); |
| } |
| final ListPreference preference = (ListPreference) mPreference; |
| return mBandSummaries[preference.findIndexOfValue(String.valueOf(mBandIndex))]; |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return PREF_KEY; |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| mBandIndex = validateSelection(Integer.parseInt((String) newValue)); |
| Log.d(TAG, "Band preference changed, updating band index to " + mBandIndex); |
| preference.setSummary(getConfigSummary()); |
| mListener.onTetherConfigUpdated(); |
| return true; |
| } |
| |
| private int validateSelection(WifiConfiguration config) { |
| if (config.apBand == WifiConfiguration.AP_BAND_DUAL |
| && config.getAuthType() == WifiConfiguration.KeyMgmt.OWE) { |
| config.apBand = 0; |
| mWifiManager.setWifiApConfiguration(config); |
| Log.d(TAG, "Dual band not supported for OWE security, updating band index to " + mBandIndex); |
| } |
| |
| return validateSelection(config.apBand); |
| } |
| |
| private int validateSelection(int band) { |
| // Reset the band to 2.4 GHz if we get a weird config back to avoid a crash. |
| final boolean isDualMode = mWifiManager.isDualModeSupported(); |
| |
| // unsupported states: |
| // 1: no dual mode means we can't have AP_BAND_ANY - default to 5GHZ |
| // 2: no 5 GHZ support means we can't have AP_BAND_5GHZ - default to 2GHZ |
| // 3: With Dual mode support we can't have AP_BAND_5GHZ or AP_BAND_6GHZ - default to ANY |
| // 4: no 6 GHZ support means we can't have AP_BAND_6GHZ - default to 2GHZ |
| if (!isDualMode && WifiConfiguration.AP_BAND_ANY == band) { |
| return WifiConfiguration.AP_BAND_5GHZ; |
| } else if (!is5GhzBandSupported() && WifiConfiguration.AP_BAND_5GHZ == band) { |
| return WifiConfiguration.AP_BAND_2GHZ; |
| } else if (isDualMode && (WifiConfiguration.AP_BAND_5GHZ == band || |
| WifiConfiguration.AP_BAND_6GHZ == band)) { |
| return WifiConfiguration.AP_BAND_ANY; |
| } else if (!is6GhzBandSupported() && WifiConfiguration.AP_BAND_6GHZ == band) { |
| return WifiConfiguration.AP_BAND_2GHZ; |
| } |
| |
| return band; |
| } |
| |
| public void updatePreferenceEntries(WifiConfiguration config) { |
| mSecurityType = (config == null ? WifiConfiguration.KeyMgmt.NONE : config.getAuthType()); |
| Log.d(TAG, "updating band preferences."); |
| updatePreferenceEntries(); |
| } |
| |
| @VisibleForTesting |
| void updatePreferenceEntries() { |
| Resources res = mContext.getResources(); |
| ArrayList<String> bandEntries = new ArrayList<String>(); |
| ArrayList<String> bandSummaries = new ArrayList<String>(); |
| // Add 2GHz band |
| bandEntries.add(String.valueOf(WifiConfiguration.AP_BAND_2GHZ)); |
| bandSummaries.add(mContext.getString(R.string.wifi_ap_choose_2G)); |
| // Add 5GHz band |
| if (is5GhzBandSupported()) { |
| bandEntries.add(String.valueOf(WifiConfiguration.AP_BAND_5GHZ)); |
| bandSummaries.add(mContext.getString(R.string.wifi_ap_choose_5G)); |
| } |
| // Add 6GHz band |
| if (is6GhzBandSupported()) { |
| bandEntries.add(String.valueOf(WifiConfiguration.AP_BAND_6GHZ)); |
| bandSummaries.add(mContext.getString(R.string.wifi_ap_choose_6G)); |
| } |
| // change the list options if this is a dual mode device |
| if (isDualMode) { |
| int entriesRes = R.array.wifi_ap_band_dual_mode; |
| int summariesRes = R.array.wifi_ap_band_dual_mode_summary; |
| bandEntries = new ArrayList<String>(Arrays.asList(res.getStringArray(entriesRes))); |
| bandSummaries = new ArrayList<String>(Arrays.asList(res.getStringArray(summariesRes))); |
| // change the list option if AP+AP is supproted and selected security type is not OWE |
| } else if (isVendorDualApSupported && mSecurityType != WifiConfiguration.KeyMgmt.OWE && is5GhzBandSupported()) { |
| bandEntries.add(String.valueOf(WifiConfiguration.AP_BAND_DUAL)); |
| bandSummaries.add(mContext.getString(R.string.wifi_ap_choose_vendor_both)); |
| } |
| mBandEntries = bandEntries.toArray(new String[bandEntries.size()]); |
| mBandSummaries = bandSummaries.toArray(new String[bandSummaries.size()]); |
| } |
| |
| private boolean is5GhzBandSupported() { |
| final String countryCode = mWifiManager.getCountryCode(); |
| if (!mWifiManager.isDualBandSupported() || countryCode == null) { |
| return false; |
| } |
| return true; |
| } |
| private boolean is6GhzBandSupported() { |
| final String countryCode = mWifiManager.getCountryCode(); |
| if (!mWifiManager.is6GHzBandSupported() || countryCode == null) { |
| return false; |
| } |
| return true; |
| } |
| |
| public int getBandIndex() { |
| return mBandIndex; |
| } |
| |
| public boolean isVendorDualApSupported() { |
| return isVendorDualApSupported; |
| } |
| |
| public boolean isBandEntriesHasDualband() { |
| if (mBandEntries == null) |
| return false; |
| |
| for (int i = 0 ; i < mBandEntries.length; i++) { |
| if (Integer.parseInt(mBandEntries[i]) == WifiConfiguration.AP_BAND_DUAL) |
| return true; |
| } |
| |
| return false; |
| } |
| } |