WifiAwareNativeManager.java revision db3c9d35a7f08de03beec81e801d917a5375f63e
164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen/* 264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * Copyright (C) 2016 The Android Open Source Project 364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * 464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * Licensed under the Apache License, Version 2.0 (the "License"); 564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * you may not use this file except in compliance with the License. 664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * You may obtain a copy of the License at 764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * 864ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * http://www.apache.org/licenses/LICENSE-2.0 964ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * 1064ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * Unless required by applicable law or agreed to in writing, software 1164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * distributed under the License is distributed on an "AS IS" BASIS, 1264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * See the License for the specific language governing permissions and 1464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * limitations under the License. 1564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen */ 1664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 1764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohenpackage com.android.server.wifi.aware; 1864ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 1964ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohenimport android.hardware.wifi.V1_0.IWifiNanIface; 20448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohenimport android.hardware.wifi.V1_0.IfaceType; 21db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohenimport android.hardware.wifi.V1_0.WifiStatus; 22db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohenimport android.hardware.wifi.V1_0.WifiStatusCode; 23db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohenimport android.os.RemoteException; 2464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohenimport android.util.Log; 2564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 2664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohenimport com.android.server.wifi.HalDeviceManager; 2764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 28db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohenimport java.io.FileDescriptor; 29db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohenimport java.io.PrintWriter; 30db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen 3164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen/** 3264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen * Manages the interface to Wi-Fi Aware HIDL (HAL). 3364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen */ 3464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohenclass WifiAwareNativeManager { 3564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private static final String TAG = "WifiAwareNativeManager"; 3664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private static final boolean DBG = false; 3764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 3864ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen // to be used for synchronizing access to any of the WifiAwareNative objects 3964ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private final Object mLock = new Object(); 4064ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 4164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private WifiAwareStateManager mWifiAwareStateManager; 4264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private HalDeviceManager mHalDeviceManager; 43db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen private WifiAwareNativeCallback mWifiAwareNativeCallback; 4464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private IWifiNanIface mWifiNanIface = null; 4564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private InterfaceDestroyedListener mInterfaceDestroyedListener = 4664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen new InterfaceDestroyedListener(); 4764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private InterfaceAvailableForRequestListener mInterfaceAvailableForRequestListener = 4864ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen new InterfaceAvailableForRequestListener(); 4964ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 5064ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen WifiAwareNativeManager(WifiAwareStateManager awareStateManager, 51db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen HalDeviceManager halDeviceManager, 52db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen WifiAwareNativeCallback wifiAwareNativeCallback) { 5364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen mWifiAwareStateManager = awareStateManager; 5464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen mHalDeviceManager = halDeviceManager; 55db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen mWifiAwareNativeCallback = wifiAwareNativeCallback; 563145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen mHalDeviceManager.registerStatusListener( 573145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen new HalDeviceManager.ManagerStatusListener() { 5864ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen @Override 593145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen public void onStatusChanged() { 603145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen if (DBG) Log.d(TAG, "onStatusChanged"); 613145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen // only care about isStarted (Wi-Fi started) not isReady - since if not 623145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen // ready then Wi-Fi will also be down. 633145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen if (mHalDeviceManager.isStarted()) { 64448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen // 1. no problem registering duplicates - only one will be called 65448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen // 2. will be called immediately if available 66448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen mHalDeviceManager.registerInterfaceAvailableForRequestListener( 67448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen IfaceType.NAN, mInterfaceAvailableForRequestListener, null); 683145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen } else { 693145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen awareIsDown(); 703145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen } 7164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 7264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen }, null); 733145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen if (mHalDeviceManager.isStarted()) { 743145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen tryToGetAware(); 753145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen } 7664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 7764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 7864ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen /* package */ IWifiNanIface getWifiNanIface() { 7964ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen synchronized (mLock) { 8064ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen return mWifiNanIface; 8164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 8264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 8364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 8464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private void tryToGetAware() { 8564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen synchronized (mLock) { 86448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen if (DBG) Log.d(TAG, "tryToGetAware: mWifiNanIface=" + mWifiNanIface); 87448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen 883145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen if (mWifiNanIface != null) { 893145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen return; 903145bb4d3359647cccd9b4aba1734066f36bb2e6Etan Cohen } 91448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen IWifiNanIface iface = mHalDeviceManager.createNanIface(mInterfaceDestroyedListener, 92448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen null); 9364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen if (iface == null) { 9464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen if (DBG) Log.d(TAG, "Was not able to obtain an IWifiNanIface"); 9564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } else { 9664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen if (DBG) Log.d(TAG, "Obtained an IWifiNanIface"); 9764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 98db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen try { 99db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen WifiStatus status = iface.registerEventCallback(mWifiAwareNativeCallback); 100db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen if (status.code != WifiStatusCode.SUCCESS) { 101db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen Log.e(TAG, "IWifiNanIface.registerEventCallback error: " + statusString( 102db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen status)); 103db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen mHalDeviceManager.removeIface(iface); 104db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen return; 105db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen } 106db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen } catch (RemoteException e) { 107db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen Log.e(TAG, "IWifiNanIface.registerEventCallback exception: " + e); 108db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen mHalDeviceManager.removeIface(iface); 109db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen return; 110db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen } 11164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen mWifiNanIface = iface; 11264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen mWifiAwareStateManager.enableUsage(); 11364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 11464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 11564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 11664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 11764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private void awareIsDown() { 118448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen synchronized (mLock) { 119448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen if (DBG) Log.d(TAG, "awareIsDown: mWifiNanIface=" + mWifiNanIface); 120448a7b6b7b16cf39ed25729ceaf61edb30368567Etan Cohen if (mWifiNanIface != null) { 12164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen mWifiNanIface = null; 12264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen mWifiAwareStateManager.disableUsage(); 12364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 12464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 12564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 12664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 12764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private class InterfaceDestroyedListener implements 12864ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen HalDeviceManager.InterfaceDestroyedListener { 12964ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen @Override 13064ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen public void onDestroyed() { 13164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen if (DBG) Log.d(TAG, "Interface was destroyed"); 13264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen awareIsDown(); 13364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 13464ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 13564ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen 13664ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen private class InterfaceAvailableForRequestListener implements 13764ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen HalDeviceManager.InterfaceAvailableForRequestListener { 13864ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen @Override 13964ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen public void onAvailableForRequest() { 14064ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen if (DBG) Log.d(TAG, "Interface is possibly available"); 14164ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen tryToGetAware(); 14264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 14364ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen } 144db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen 145db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen private static String statusString(WifiStatus status) { 146db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen if (status == null) { 147db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen return "status=null"; 148db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen } 149db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen StringBuilder sb = new StringBuilder(); 150db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen sb.append(status.code).append(" (").append(status.description).append(")"); 151db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen return sb.toString(); 152db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen } 153db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen 154db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen /** 155db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen * Dump the internal state of the class. 156db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen */ 157db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 158db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen pw.println("WifiAwareNativeManager:"); 159db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen pw.println(" mWifiNanIface: " + mWifiNanIface); 160db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen mHalDeviceManager.dump(fd, pw, args); 161db3c9d35a7f08de03beec81e801d917a5375f63eEtan Cohen } 16264ce9f185eb6097c1c358c44710be6e1ca7c7055Etan Cohen} 163