Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.display; |
| 18 | |
| 19 | import com.android.internal.util.DumpUtils; |
| 20 | |
| 21 | import android.content.BroadcastReceiver; |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 22 | import android.content.ContentResolver; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 23 | import android.content.Context; |
| 24 | import android.content.Intent; |
| 25 | import android.content.IntentFilter; |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 26 | import android.database.ContentObserver; |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 27 | import android.hardware.display.WifiDisplay; |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 28 | import android.hardware.display.WifiDisplayStatus; |
Jeff Brown | 88469e5 | 2012-09-12 16:01:45 -0700 | [diff] [blame] | 29 | import android.media.AudioManager; |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 30 | import android.media.RemoteDisplay; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 31 | import android.net.NetworkInfo; |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 32 | import android.net.Uri; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 33 | import android.net.wifi.p2p.WifiP2pConfig; |
| 34 | import android.net.wifi.p2p.WifiP2pDevice; |
| 35 | import android.net.wifi.p2p.WifiP2pDeviceList; |
| 36 | import android.net.wifi.p2p.WifiP2pGroup; |
| 37 | import android.net.wifi.p2p.WifiP2pManager; |
| 38 | import android.net.wifi.p2p.WifiP2pWfdInfo; |
| 39 | import android.net.wifi.p2p.WifiP2pManager.ActionListener; |
| 40 | import android.net.wifi.p2p.WifiP2pManager.Channel; |
| 41 | import android.net.wifi.p2p.WifiP2pManager.GroupInfoListener; |
| 42 | import android.net.wifi.p2p.WifiP2pManager.PeerListListener; |
| 43 | import android.os.Handler; |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 44 | import android.provider.Settings; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 45 | import android.util.Slog; |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 46 | import android.view.Surface; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 47 | |
| 48 | import java.io.PrintWriter; |
| 49 | import java.net.Inet4Address; |
| 50 | import java.net.InetAddress; |
| 51 | import java.net.NetworkInterface; |
| 52 | import java.net.SocketException; |
| 53 | import java.util.ArrayList; |
| 54 | import java.util.Enumeration; |
| 55 | |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 56 | import libcore.util.Objects; |
| 57 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 58 | /** |
| 59 | * Manages all of the various asynchronous interactions with the {@link WifiP2pManager} |
| 60 | * on behalf of {@link WifiDisplayAdapter}. |
| 61 | * <p> |
| 62 | * This code is isolated from {@link WifiDisplayAdapter} so that we can avoid |
| 63 | * accidentally introducing any deadlocks due to the display manager calling |
| 64 | * outside of itself while holding its lock. It's also way easier to write this |
| 65 | * asynchronous code if we can assume that it is single-threaded. |
| 66 | * </p><p> |
| 67 | * The controller must be instantiated on the handler thread. |
| 68 | * </p> |
| 69 | */ |
| 70 | final class WifiDisplayController implements DumpUtils.Dump { |
| 71 | private static final String TAG = "WifiDisplayController"; |
Jeff Brown | c5df37c | 2012-09-13 11:45:07 -0700 | [diff] [blame] | 72 | private static final boolean DEBUG = false; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 73 | |
| 74 | private static final int DEFAULT_CONTROL_PORT = 7236; |
| 75 | private static final int MAX_THROUGHPUT = 50; |
Irfan Sheriff | 2c2ca5c | 2012-09-23 17:30:19 -0700 | [diff] [blame] | 76 | private static final int CONNECTION_TIMEOUT_SECONDS = 60; |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 77 | private static final int RTSP_TIMEOUT_SECONDS = 15; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 78 | |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 79 | private static final int DISCOVER_PEERS_MAX_RETRIES = 10; |
| 80 | private static final int DISCOVER_PEERS_RETRY_DELAY_MILLIS = 500; |
| 81 | |
| 82 | private static final int CONNECT_MAX_RETRIES = 3; |
| 83 | private static final int CONNECT_RETRY_DELAY_MILLIS = 500; |
| 84 | |
Jeff Brown | 88469e5 | 2012-09-12 16:01:45 -0700 | [diff] [blame] | 85 | // A unique token to identify the remote submix that is managed by Wifi display. |
| 86 | // It must match what the media server uses when it starts recording the submix |
| 87 | // for transmission. We use 0 although the actual value is currently ignored. |
| 88 | private static final int REMOTE_SUBMIX_ADDRESS = 0; |
| 89 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 90 | private final Context mContext; |
| 91 | private final Handler mHandler; |
| 92 | private final Listener mListener; |
Jeff Brown | 88469e5 | 2012-09-12 16:01:45 -0700 | [diff] [blame] | 93 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 94 | private final WifiP2pManager mWifiP2pManager; |
| 95 | private final Channel mWifiP2pChannel; |
| 96 | |
Jeff Brown | 88469e5 | 2012-09-12 16:01:45 -0700 | [diff] [blame] | 97 | private final AudioManager mAudioManager; |
| 98 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 99 | private boolean mWifiP2pEnabled; |
| 100 | private boolean mWfdEnabled; |
| 101 | private boolean mWfdEnabling; |
| 102 | private NetworkInfo mNetworkInfo; |
| 103 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 104 | private final ArrayList<WifiP2pDevice> mAvailableWifiDisplayPeers = |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 105 | new ArrayList<WifiP2pDevice>(); |
| 106 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 107 | // True if Wifi display is enabled by the user. |
| 108 | private boolean mWifiDisplayOnSetting; |
| 109 | |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 110 | // True if there is a call to discoverPeers in progress. |
| 111 | private boolean mDiscoverPeersInProgress; |
| 112 | |
| 113 | // Number of discover peers retries remaining. |
| 114 | private int mDiscoverPeersRetriesLeft; |
| 115 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 116 | // The device to which we want to connect, or null if we want to be disconnected. |
| 117 | private WifiP2pDevice mDesiredDevice; |
| 118 | |
| 119 | // The device to which we are currently connecting, or null if we have already connected |
| 120 | // or are not trying to connect. |
| 121 | private WifiP2pDevice mConnectingDevice; |
| 122 | |
| 123 | // The device to which we are currently connected, which means we have an active P2P group. |
| 124 | private WifiP2pDevice mConnectedDevice; |
| 125 | |
| 126 | // The group info obtained after connecting. |
| 127 | private WifiP2pGroup mConnectedDeviceGroupInfo; |
| 128 | |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 129 | // Number of connection retries remaining. |
| 130 | private int mConnectionRetriesLeft; |
| 131 | |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 132 | // The remote display that is listening on the connection. |
| 133 | // Created after the Wifi P2P network is connected. |
| 134 | private RemoteDisplay mRemoteDisplay; |
| 135 | |
| 136 | // The remote display interface. |
| 137 | private String mRemoteDisplayInterface; |
| 138 | |
| 139 | // True if RTSP has connected. |
| 140 | private boolean mRemoteDisplayConnected; |
| 141 | |
Jeff Brown | c9bd4ca | 2012-09-17 12:20:29 -0700 | [diff] [blame] | 142 | // True if the remote submix is enabled. |
| 143 | private boolean mRemoteSubmixOn; |
| 144 | |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 145 | // The information we have most recently told WifiDisplayAdapter about. |
| 146 | private WifiDisplay mAdvertisedDisplay; |
| 147 | private Surface mAdvertisedDisplaySurface; |
| 148 | private int mAdvertisedDisplayWidth; |
| 149 | private int mAdvertisedDisplayHeight; |
| 150 | private int mAdvertisedDisplayFlags; |
| 151 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 152 | public WifiDisplayController(Context context, Handler handler, Listener listener) { |
| 153 | mContext = context; |
| 154 | mHandler = handler; |
| 155 | mListener = listener; |
| 156 | |
| 157 | mWifiP2pManager = (WifiP2pManager)context.getSystemService(Context.WIFI_P2P_SERVICE); |
| 158 | mWifiP2pChannel = mWifiP2pManager.initialize(context, handler.getLooper(), null); |
| 159 | |
Jeff Brown | 88469e5 | 2012-09-12 16:01:45 -0700 | [diff] [blame] | 160 | mAudioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE); |
| 161 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 162 | IntentFilter intentFilter = new IntentFilter(); |
| 163 | intentFilter.addAction(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION); |
| 164 | intentFilter.addAction(WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION); |
| 165 | intentFilter.addAction(WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION); |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 166 | context.registerReceiver(mWifiP2pReceiver, intentFilter, null, mHandler); |
| 167 | |
| 168 | ContentObserver settingsObserver = new ContentObserver(mHandler) { |
| 169 | @Override |
| 170 | public void onChange(boolean selfChange, Uri uri) { |
| 171 | updateSettings(); |
| 172 | } |
| 173 | }; |
| 174 | |
| 175 | final ContentResolver resolver = mContext.getContentResolver(); |
| 176 | resolver.registerContentObserver(Settings.Global.getUriFor( |
| 177 | Settings.Global.WIFI_DISPLAY_ON), false, settingsObserver); |
| 178 | updateSettings(); |
| 179 | } |
| 180 | |
| 181 | private void updateSettings() { |
| 182 | final ContentResolver resolver = mContext.getContentResolver(); |
| 183 | mWifiDisplayOnSetting = Settings.Global.getInt(resolver, |
| 184 | Settings.Global.WIFI_DISPLAY_ON, 0) != 0; |
| 185 | |
| 186 | updateWfdEnableState(); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | public void dump(PrintWriter pw) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 190 | pw.println("mWifiDisplayOnSetting=" + mWifiDisplayOnSetting); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 191 | pw.println("mWifiP2pEnabled=" + mWifiP2pEnabled); |
| 192 | pw.println("mWfdEnabled=" + mWfdEnabled); |
| 193 | pw.println("mWfdEnabling=" + mWfdEnabling); |
| 194 | pw.println("mNetworkInfo=" + mNetworkInfo); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 195 | pw.println("mDiscoverPeersInProgress=" + mDiscoverPeersInProgress); |
| 196 | pw.println("mDiscoverPeersRetriesLeft=" + mDiscoverPeersRetriesLeft); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 197 | pw.println("mDesiredDevice=" + describeWifiP2pDevice(mDesiredDevice)); |
| 198 | pw.println("mConnectingDisplay=" + describeWifiP2pDevice(mConnectingDevice)); |
| 199 | pw.println("mConnectedDevice=" + describeWifiP2pDevice(mConnectedDevice)); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 200 | pw.println("mConnectionRetriesLeft=" + mConnectionRetriesLeft); |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 201 | pw.println("mRemoteDisplay=" + mRemoteDisplay); |
| 202 | pw.println("mRemoteDisplayInterface=" + mRemoteDisplayInterface); |
| 203 | pw.println("mRemoteDisplayConnected=" + mRemoteDisplayConnected); |
Jeff Brown | c9bd4ca | 2012-09-17 12:20:29 -0700 | [diff] [blame] | 204 | pw.println("mRemoteSubmixOn=" + mRemoteSubmixOn); |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 205 | pw.println("mAdvertisedDisplay=" + mAdvertisedDisplay); |
| 206 | pw.println("mAdvertisedDisplaySurface=" + mAdvertisedDisplaySurface); |
| 207 | pw.println("mAdvertisedDisplayWidth=" + mAdvertisedDisplayWidth); |
| 208 | pw.println("mAdvertisedDisplayHeight=" + mAdvertisedDisplayHeight); |
| 209 | pw.println("mAdvertisedDisplayFlags=" + mAdvertisedDisplayFlags); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 210 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 211 | pw.println("mAvailableWifiDisplayPeers: size=" + mAvailableWifiDisplayPeers.size()); |
| 212 | for (WifiP2pDevice device : mAvailableWifiDisplayPeers) { |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 213 | pw.println(" " + describeWifiP2pDevice(device)); |
| 214 | } |
| 215 | } |
| 216 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 217 | public void requestScan() { |
| 218 | discoverPeers(); |
| 219 | } |
| 220 | |
| 221 | public void requestConnect(String address) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 222 | for (WifiP2pDevice device : mAvailableWifiDisplayPeers) { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 223 | if (device.deviceAddress.equals(address)) { |
| 224 | connect(device); |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | public void requestDisconnect() { |
| 230 | disconnect(); |
| 231 | } |
| 232 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 233 | private void updateWfdEnableState() { |
| 234 | if (mWifiDisplayOnSetting && mWifiP2pEnabled) { |
| 235 | // WFD should be enabled. |
| 236 | if (!mWfdEnabled && !mWfdEnabling) { |
| 237 | mWfdEnabling = true; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 238 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 239 | WifiP2pWfdInfo wfdInfo = new WifiP2pWfdInfo(); |
| 240 | wfdInfo.setWfdEnabled(true); |
| 241 | wfdInfo.setDeviceType(WifiP2pWfdInfo.WFD_SOURCE); |
| 242 | wfdInfo.setSessionAvailable(true); |
| 243 | wfdInfo.setControlPort(DEFAULT_CONTROL_PORT); |
| 244 | wfdInfo.setMaxThroughput(MAX_THROUGHPUT); |
| 245 | mWifiP2pManager.setWFDInfo(mWifiP2pChannel, wfdInfo, new ActionListener() { |
| 246 | @Override |
| 247 | public void onSuccess() { |
| 248 | if (DEBUG) { |
| 249 | Slog.d(TAG, "Successfully set WFD info."); |
| 250 | } |
| 251 | if (mWfdEnabling) { |
| 252 | mWfdEnabling = false; |
| 253 | mWfdEnabled = true; |
| 254 | reportFeatureState(); |
| 255 | } |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 256 | } |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 257 | |
| 258 | @Override |
| 259 | public void onFailure(int reason) { |
| 260 | if (DEBUG) { |
| 261 | Slog.d(TAG, "Failed to set WFD info with reason " + reason + "."); |
| 262 | } |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 263 | mWfdEnabling = false; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 264 | } |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 265 | }); |
| 266 | } |
| 267 | } else { |
| 268 | // WFD should be disabled. |
| 269 | mWfdEnabling = false; |
| 270 | mWfdEnabled = false; |
| 271 | reportFeatureState(); |
| 272 | disconnect(); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 273 | } |
| 274 | } |
| 275 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 276 | private void reportFeatureState() { |
| 277 | final int featureState = computeFeatureState(); |
| 278 | mHandler.post(new Runnable() { |
| 279 | @Override |
| 280 | public void run() { |
| 281 | mListener.onFeatureStateChanged(featureState); |
| 282 | } |
| 283 | }); |
| 284 | } |
| 285 | |
| 286 | private int computeFeatureState() { |
| 287 | if (!mWifiP2pEnabled) { |
| 288 | return WifiDisplayStatus.FEATURE_STATE_DISABLED; |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 289 | } |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 290 | return mWifiDisplayOnSetting ? WifiDisplayStatus.FEATURE_STATE_ON : |
| 291 | WifiDisplayStatus.FEATURE_STATE_OFF; |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 292 | } |
| 293 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 294 | private void discoverPeers() { |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 295 | if (!mDiscoverPeersInProgress) { |
| 296 | mDiscoverPeersInProgress = true; |
| 297 | mDiscoverPeersRetriesLeft = DISCOVER_PEERS_MAX_RETRIES; |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 298 | handleScanStarted(); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 299 | tryDiscoverPeers(); |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | private void tryDiscoverPeers() { |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 304 | mWifiP2pManager.discoverPeers(mWifiP2pChannel, new ActionListener() { |
| 305 | @Override |
| 306 | public void onSuccess() { |
| 307 | if (DEBUG) { |
| 308 | Slog.d(TAG, "Discover peers succeeded. Requesting peers now."); |
| 309 | } |
| 310 | |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 311 | mDiscoverPeersInProgress = false; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 312 | requestPeers(); |
| 313 | } |
| 314 | |
| 315 | @Override |
| 316 | public void onFailure(int reason) { |
| 317 | if (DEBUG) { |
| 318 | Slog.d(TAG, "Discover peers failed with reason " + reason + "."); |
| 319 | } |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 320 | |
| 321 | if (mDiscoverPeersInProgress) { |
| 322 | if (reason == 0 && mDiscoverPeersRetriesLeft > 0 && mWfdEnabled) { |
| 323 | mHandler.postDelayed(new Runnable() { |
| 324 | @Override |
| 325 | public void run() { |
| 326 | if (mDiscoverPeersInProgress) { |
| 327 | if (mDiscoverPeersRetriesLeft > 0 && mWfdEnabled) { |
| 328 | mDiscoverPeersRetriesLeft -= 1; |
| 329 | if (DEBUG) { |
| 330 | Slog.d(TAG, "Retrying discovery. Retries left: " |
| 331 | + mDiscoverPeersRetriesLeft); |
| 332 | } |
| 333 | tryDiscoverPeers(); |
| 334 | } else { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 335 | handleScanFinished(); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 336 | mDiscoverPeersInProgress = false; |
| 337 | } |
| 338 | } |
| 339 | } |
| 340 | }, DISCOVER_PEERS_RETRY_DELAY_MILLIS); |
| 341 | } else { |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 342 | handleScanFinished(); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 343 | mDiscoverPeersInProgress = false; |
| 344 | } |
| 345 | } |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 346 | } |
| 347 | }); |
| 348 | } |
| 349 | |
| 350 | private void requestPeers() { |
| 351 | mWifiP2pManager.requestPeers(mWifiP2pChannel, new PeerListListener() { |
| 352 | @Override |
| 353 | public void onPeersAvailable(WifiP2pDeviceList peers) { |
| 354 | if (DEBUG) { |
| 355 | Slog.d(TAG, "Received list of peers."); |
| 356 | } |
| 357 | |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 358 | mAvailableWifiDisplayPeers.clear(); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 359 | for (WifiP2pDevice device : peers.getDeviceList()) { |
| 360 | if (DEBUG) { |
| 361 | Slog.d(TAG, " " + describeWifiP2pDevice(device)); |
| 362 | } |
| 363 | |
| 364 | if (isWifiDisplay(device)) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 365 | mAvailableWifiDisplayPeers.add(device); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 366 | } |
| 367 | } |
| 368 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 369 | handleScanFinished(); |
| 370 | } |
| 371 | }); |
| 372 | } |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 373 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 374 | private void handleScanStarted() { |
| 375 | mHandler.post(new Runnable() { |
| 376 | @Override |
| 377 | public void run() { |
| 378 | mListener.onScanStarted(); |
| 379 | } |
| 380 | }); |
| 381 | } |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 382 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 383 | private void handleScanFinished() { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 384 | final int count = mAvailableWifiDisplayPeers.size(); |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 385 | final WifiDisplay[] displays = WifiDisplay.CREATOR.newArray(count); |
| 386 | for (int i = 0; i < count; i++) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 387 | displays[i] = createWifiDisplay(mAvailableWifiDisplayPeers.get(i)); |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 388 | } |
| 389 | |
| 390 | mHandler.post(new Runnable() { |
| 391 | @Override |
| 392 | public void run() { |
| 393 | mListener.onScanFinished(displays); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 394 | } |
| 395 | }); |
| 396 | } |
| 397 | |
| 398 | private void connect(final WifiP2pDevice device) { |
| 399 | if (mDesiredDevice != null |
| 400 | && !mDesiredDevice.deviceAddress.equals(device.deviceAddress)) { |
| 401 | if (DEBUG) { |
| 402 | Slog.d(TAG, "connect: nothing to do, already connecting to " |
| 403 | + describeWifiP2pDevice(device)); |
| 404 | } |
| 405 | return; |
| 406 | } |
| 407 | |
| 408 | if (mConnectedDevice != null |
| 409 | && !mConnectedDevice.deviceAddress.equals(device.deviceAddress) |
| 410 | && mDesiredDevice == null) { |
| 411 | if (DEBUG) { |
| 412 | Slog.d(TAG, "connect: nothing to do, already connected to " |
| 413 | + describeWifiP2pDevice(device) + " and not part way through " |
| 414 | + "connecting to a different device."); |
| 415 | } |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 416 | return; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | mDesiredDevice = device; |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 420 | mConnectionRetriesLeft = CONNECT_MAX_RETRIES; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 421 | updateConnection(); |
| 422 | } |
| 423 | |
| 424 | private void disconnect() { |
| 425 | mDesiredDevice = null; |
| 426 | updateConnection(); |
| 427 | } |
| 428 | |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 429 | private void retryConnection() { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 430 | // Cheap hack. Make a new instance of the device object so that we |
| 431 | // can distinguish it from the previous connection attempt. |
| 432 | // This will cause us to tear everything down before we try again. |
| 433 | mDesiredDevice = new WifiP2pDevice(mDesiredDevice); |
| 434 | updateConnection(); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 435 | } |
| 436 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 437 | /** |
| 438 | * This function is called repeatedly after each asynchronous operation |
| 439 | * until all preconditions for the connection have been satisfied and the |
| 440 | * connection is established (or not). |
| 441 | */ |
| 442 | private void updateConnection() { |
| 443 | // Step 1. Before we try to connect to a new device, tell the system we |
| 444 | // have disconnected from the old one. |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 445 | if (mRemoteDisplay != null && mConnectedDevice != mDesiredDevice) { |
| 446 | Slog.i(TAG, "Stopped listening for RTSP connection on " + mRemoteDisplayInterface |
| 447 | + " from Wifi display: " + mConnectedDevice.deviceName); |
| 448 | |
| 449 | mRemoteDisplay.dispose(); |
| 450 | mRemoteDisplay = null; |
| 451 | mRemoteDisplayInterface = null; |
| 452 | mRemoteDisplayConnected = false; |
| 453 | mHandler.removeCallbacks(mRtspTimeout); |
| 454 | |
Jeff Brown | c9bd4ca | 2012-09-17 12:20:29 -0700 | [diff] [blame] | 455 | setRemoteSubmixOn(false); |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 456 | unadvertiseDisplay(); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 457 | |
| 458 | // continue to next step |
| 459 | } |
| 460 | |
| 461 | // Step 2. Before we try to connect to a new device, disconnect from the old one. |
| 462 | if (mConnectedDevice != null && mConnectedDevice != mDesiredDevice) { |
| 463 | Slog.i(TAG, "Disconnecting from Wifi display: " + mConnectedDevice.deviceName); |
| 464 | |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 465 | unadvertiseDisplay(); |
| 466 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 467 | final WifiP2pDevice oldDevice = mConnectedDevice; |
| 468 | mWifiP2pManager.removeGroup(mWifiP2pChannel, new ActionListener() { |
| 469 | @Override |
| 470 | public void onSuccess() { |
| 471 | Slog.i(TAG, "Disconnected from Wifi display: " + oldDevice.deviceName); |
| 472 | next(); |
| 473 | } |
| 474 | |
| 475 | @Override |
| 476 | public void onFailure(int reason) { |
| 477 | Slog.i(TAG, "Failed to disconnect from Wifi display: " |
| 478 | + oldDevice.deviceName + ", reason=" + reason); |
| 479 | next(); |
| 480 | } |
| 481 | |
| 482 | private void next() { |
| 483 | if (mConnectedDevice == oldDevice) { |
| 484 | mConnectedDevice = null; |
| 485 | updateConnection(); |
| 486 | } |
| 487 | } |
| 488 | }); |
| 489 | return; // wait for asynchronous callback |
| 490 | } |
| 491 | |
| 492 | // Step 3. Before we try to connect to a new device, stop trying to connect |
| 493 | // to the old one. |
| 494 | if (mConnectingDevice != null && mConnectingDevice != mDesiredDevice) { |
| 495 | Slog.i(TAG, "Canceling connection to Wifi display: " + mConnectingDevice.deviceName); |
| 496 | |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 497 | unadvertiseDisplay(); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 498 | mHandler.removeCallbacks(mConnectionTimeout); |
| 499 | |
| 500 | final WifiP2pDevice oldDevice = mConnectingDevice; |
| 501 | mWifiP2pManager.cancelConnect(mWifiP2pChannel, new ActionListener() { |
| 502 | @Override |
| 503 | public void onSuccess() { |
| 504 | Slog.i(TAG, "Canceled connection to Wifi display: " + oldDevice.deviceName); |
| 505 | next(); |
| 506 | } |
| 507 | |
| 508 | @Override |
| 509 | public void onFailure(int reason) { |
| 510 | Slog.i(TAG, "Failed to cancel connection to Wifi display: " |
| 511 | + oldDevice.deviceName + ", reason=" + reason); |
| 512 | next(); |
| 513 | } |
| 514 | |
| 515 | private void next() { |
| 516 | if (mConnectingDevice == oldDevice) { |
| 517 | mConnectingDevice = null; |
| 518 | updateConnection(); |
| 519 | } |
| 520 | } |
| 521 | }); |
| 522 | return; // wait for asynchronous callback |
| 523 | } |
| 524 | |
| 525 | // Step 4. If we wanted to disconnect, then mission accomplished. |
| 526 | if (mDesiredDevice == null) { |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 527 | unadvertiseDisplay(); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 528 | return; // done |
| 529 | } |
| 530 | |
| 531 | // Step 5. Try to connect. |
| 532 | if (mConnectedDevice == null && mConnectingDevice == null) { |
| 533 | Slog.i(TAG, "Connecting to Wifi display: " + mDesiredDevice.deviceName); |
| 534 | |
| 535 | mConnectingDevice = mDesiredDevice; |
| 536 | WifiP2pConfig config = new WifiP2pConfig(); |
| 537 | config.deviceAddress = mConnectingDevice.deviceAddress; |
Irfan Sheriff | e0c28d5 | 2012-09-18 12:05:31 -0700 | [diff] [blame] | 538 | // Helps with STA & P2P concurrency |
Irfan Sheriff | 99766cf | 2012-09-20 17:18:20 -0700 | [diff] [blame] | 539 | config.groupOwnerIntent = WifiP2pConfig.MIN_GROUP_OWNER_INTENT; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 540 | |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 541 | WifiDisplay display = createWifiDisplay(mConnectingDevice); |
| 542 | advertiseDisplay(display, null, 0, 0, 0); |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 543 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 544 | final WifiP2pDevice newDevice = mDesiredDevice; |
| 545 | mWifiP2pManager.connect(mWifiP2pChannel, config, new ActionListener() { |
| 546 | @Override |
| 547 | public void onSuccess() { |
| 548 | // The connection may not yet be established. We still need to wait |
| 549 | // for WIFI_P2P_CONNECTION_CHANGED_ACTION. However, we might never |
| 550 | // get that broadcast, so we register a timeout. |
| 551 | Slog.i(TAG, "Initiated connection to Wifi display: " + newDevice.deviceName); |
| 552 | |
| 553 | mHandler.postDelayed(mConnectionTimeout, CONNECTION_TIMEOUT_SECONDS * 1000); |
| 554 | } |
| 555 | |
| 556 | @Override |
| 557 | public void onFailure(int reason) { |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 558 | if (mConnectingDevice == newDevice) { |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 559 | Slog.i(TAG, "Failed to initiate connection to Wifi display: " |
| 560 | + newDevice.deviceName + ", reason=" + reason); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 561 | mConnectingDevice = null; |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 562 | handleConnectionFailure(false); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 563 | } |
| 564 | } |
| 565 | }); |
| 566 | return; // wait for asynchronous callback |
| 567 | } |
| 568 | |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 569 | // Step 6. Listen for incoming connections. |
| 570 | if (mConnectedDevice != null && mRemoteDisplay == null) { |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 571 | Inet4Address addr = getInterfaceAddress(mConnectedDeviceGroupInfo); |
| 572 | if (addr == null) { |
| 573 | Slog.i(TAG, "Failed to get local interface address for communicating " |
| 574 | + "with Wifi display: " + mConnectedDevice.deviceName); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 575 | handleConnectionFailure(false); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 576 | return; // done |
| 577 | } |
| 578 | |
Jeff Brown | c9bd4ca | 2012-09-17 12:20:29 -0700 | [diff] [blame] | 579 | setRemoteSubmixOn(true); |
| 580 | |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 581 | final WifiP2pDevice oldDevice = mConnectedDevice; |
Jeff Brown | 0f68d16 | 2012-09-11 12:18:15 -0700 | [diff] [blame] | 582 | final int port = getPortNumber(mConnectedDevice); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 583 | final String iface = addr.getHostAddress() + ":" + port; |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 584 | mRemoteDisplayInterface = iface; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 585 | |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 586 | Slog.i(TAG, "Listening for RTSP connection on " + iface |
| 587 | + " from Wifi display: " + mConnectedDevice.deviceName); |
| 588 | |
| 589 | mRemoteDisplay = RemoteDisplay.listen(iface, new RemoteDisplay.Listener() { |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 590 | @Override |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 591 | public void onDisplayConnected(Surface surface, |
| 592 | int width, int height, int flags) { |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 593 | if (mConnectedDevice == oldDevice && !mRemoteDisplayConnected) { |
| 594 | Slog.i(TAG, "Opened RTSP connection with Wifi display: " |
| 595 | + mConnectedDevice.deviceName); |
| 596 | mRemoteDisplayConnected = true; |
| 597 | mHandler.removeCallbacks(mRtspTimeout); |
| 598 | |
| 599 | final WifiDisplay display = createWifiDisplay(mConnectedDevice); |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 600 | advertiseDisplay(display, surface, width, height, flags); |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 601 | } |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 602 | } |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 603 | |
| 604 | @Override |
| 605 | public void onDisplayDisconnected() { |
| 606 | if (mConnectedDevice == oldDevice) { |
| 607 | Slog.i(TAG, "Closed RTSP connection with Wifi display: " |
| 608 | + mConnectedDevice.deviceName); |
| 609 | mHandler.removeCallbacks(mRtspTimeout); |
| 610 | disconnect(); |
| 611 | } |
| 612 | } |
| 613 | |
| 614 | @Override |
| 615 | public void onDisplayError(int error) { |
| 616 | if (mConnectedDevice == oldDevice) { |
| 617 | Slog.i(TAG, "Lost RTSP connection with Wifi display due to error " |
| 618 | + error + ": " + mConnectedDevice.deviceName); |
| 619 | mHandler.removeCallbacks(mRtspTimeout); |
| 620 | handleConnectionFailure(false); |
| 621 | } |
| 622 | } |
| 623 | }, mHandler); |
| 624 | |
| 625 | mHandler.postDelayed(mRtspTimeout, RTSP_TIMEOUT_SECONDS * 1000); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 626 | } |
| 627 | } |
| 628 | |
Jeff Brown | c9bd4ca | 2012-09-17 12:20:29 -0700 | [diff] [blame] | 629 | private void setRemoteSubmixOn(boolean on) { |
| 630 | if (mRemoteSubmixOn != on) { |
| 631 | mRemoteSubmixOn = on; |
| 632 | mAudioManager.setRemoteSubmixOn(on, REMOTE_SUBMIX_ADDRESS); |
| 633 | } |
| 634 | } |
| 635 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 636 | private void handleStateChanged(boolean enabled) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 637 | mWifiP2pEnabled = enabled; |
| 638 | updateWfdEnableState(); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 639 | } |
| 640 | |
| 641 | private void handlePeersChanged() { |
Irfan Sheriff | 56925d6 | 2012-10-01 23:01:57 -0700 | [diff] [blame] | 642 | // Even if wfd is disabled, it is best to get the latest set of peers to |
| 643 | // keep in sync with the p2p framework |
| 644 | requestPeers(); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 645 | } |
| 646 | |
| 647 | private void handleConnectionChanged(NetworkInfo networkInfo) { |
| 648 | mNetworkInfo = networkInfo; |
Jeff Brown | 180bbc7 | 2012-09-08 23:15:00 -0700 | [diff] [blame] | 649 | if (mWfdEnabled && networkInfo.isConnected()) { |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 650 | if (mDesiredDevice != null) { |
| 651 | mWifiP2pManager.requestGroupInfo(mWifiP2pChannel, new GroupInfoListener() { |
| 652 | @Override |
| 653 | public void onGroupInfoAvailable(WifiP2pGroup info) { |
| 654 | if (DEBUG) { |
| 655 | Slog.d(TAG, "Received group info: " + describeWifiP2pGroup(info)); |
| 656 | } |
| 657 | |
| 658 | if (mConnectingDevice != null && !info.contains(mConnectingDevice)) { |
| 659 | Slog.i(TAG, "Aborting connection to Wifi display because " |
| 660 | + "the current P2P group does not contain the device " |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 661 | + "we expected to find: " + mConnectingDevice.deviceName |
| 662 | + ", group info was: " + describeWifiP2pGroup(info)); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 663 | handleConnectionFailure(false); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 664 | return; |
| 665 | } |
| 666 | |
| 667 | if (mDesiredDevice != null && !info.contains(mDesiredDevice)) { |
| 668 | disconnect(); |
| 669 | return; |
| 670 | } |
| 671 | |
| 672 | if (mConnectingDevice != null && mConnectingDevice == mDesiredDevice) { |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 673 | Slog.i(TAG, "Connected to Wifi display: " |
| 674 | + mConnectingDevice.deviceName); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 675 | |
| 676 | mHandler.removeCallbacks(mConnectionTimeout); |
| 677 | mConnectedDeviceGroupInfo = info; |
| 678 | mConnectedDevice = mConnectingDevice; |
| 679 | mConnectingDevice = null; |
| 680 | updateConnection(); |
| 681 | } |
| 682 | } |
| 683 | }); |
| 684 | } |
| 685 | } else { |
| 686 | disconnect(); |
Jeff Brown | 180bbc7 | 2012-09-08 23:15:00 -0700 | [diff] [blame] | 687 | |
| 688 | // After disconnection for a group, for some reason we have a tendency |
| 689 | // to get a peer change notification with an empty list of peers. |
| 690 | // Perform a fresh scan. |
| 691 | if (mWfdEnabled) { |
| 692 | requestPeers(); |
| 693 | } |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 694 | } |
| 695 | } |
| 696 | |
| 697 | private final Runnable mConnectionTimeout = new Runnable() { |
| 698 | @Override |
| 699 | public void run() { |
| 700 | if (mConnectingDevice != null && mConnectingDevice == mDesiredDevice) { |
| 701 | Slog.i(TAG, "Timed out waiting for Wifi display connection after " |
| 702 | + CONNECTION_TIMEOUT_SECONDS + " seconds: " |
| 703 | + mConnectingDevice.deviceName); |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 704 | handleConnectionFailure(true); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 705 | } |
| 706 | } |
| 707 | }; |
| 708 | |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 709 | private final Runnable mRtspTimeout = new Runnable() { |
| 710 | @Override |
| 711 | public void run() { |
| 712 | if (mConnectedDevice != null |
| 713 | && mRemoteDisplay != null && !mRemoteDisplayConnected) { |
| 714 | Slog.i(TAG, "Timed out waiting for Wifi display RTSP connection after " |
| 715 | + RTSP_TIMEOUT_SECONDS + " seconds: " |
| 716 | + mConnectedDevice.deviceName); |
| 717 | handleConnectionFailure(true); |
| 718 | } |
| 719 | } |
| 720 | }; |
| 721 | |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 722 | private void handleConnectionFailure(boolean timeoutOccurred) { |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 723 | Slog.i(TAG, "Wifi display connection failed!"); |
| 724 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 725 | if (mDesiredDevice != null) { |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 726 | if (mConnectionRetriesLeft > 0) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 727 | final WifiP2pDevice oldDevice = mDesiredDevice; |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 728 | mHandler.postDelayed(new Runnable() { |
| 729 | @Override |
| 730 | public void run() { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 731 | if (mDesiredDevice == oldDevice && mConnectionRetriesLeft > 0) { |
| 732 | mConnectionRetriesLeft -= 1; |
| 733 | Slog.i(TAG, "Retrying Wifi display connection. Retries left: " |
| 734 | + mConnectionRetriesLeft); |
| 735 | retryConnection(); |
| 736 | } |
Jeff Brown | 0cfebf2 | 2012-09-07 17:41:20 -0700 | [diff] [blame] | 737 | } |
| 738 | }, timeoutOccurred ? 0 : CONNECT_RETRY_DELAY_MILLIS); |
| 739 | } else { |
| 740 | disconnect(); |
| 741 | } |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 742 | } |
| 743 | } |
| 744 | |
Jeff Brown | c2b9ea6 | 2012-09-19 23:09:23 -0700 | [diff] [blame] | 745 | private void advertiseDisplay(final WifiDisplay display, |
| 746 | final Surface surface, final int width, final int height, final int flags) { |
| 747 | if (!Objects.equal(mAdvertisedDisplay, display) |
| 748 | || mAdvertisedDisplaySurface != surface |
| 749 | || mAdvertisedDisplayWidth != width |
| 750 | || mAdvertisedDisplayHeight != height |
| 751 | || mAdvertisedDisplayFlags != flags) { |
| 752 | final WifiDisplay oldDisplay = mAdvertisedDisplay; |
| 753 | final Surface oldSurface = mAdvertisedDisplaySurface; |
| 754 | |
| 755 | mAdvertisedDisplay = display; |
| 756 | mAdvertisedDisplaySurface = surface; |
| 757 | mAdvertisedDisplayWidth = width; |
| 758 | mAdvertisedDisplayHeight = height; |
| 759 | mAdvertisedDisplayFlags = flags; |
| 760 | |
| 761 | mHandler.post(new Runnable() { |
| 762 | @Override |
| 763 | public void run() { |
| 764 | if (oldSurface != null && surface != oldSurface) { |
| 765 | mListener.onDisplayDisconnected(); |
| 766 | } else if (oldDisplay != null && !Objects.equal(display, oldDisplay)) { |
| 767 | mListener.onDisplayConnectionFailed(); |
| 768 | } |
| 769 | |
| 770 | if (display != null) { |
| 771 | if (!Objects.equal(display, oldDisplay)) { |
| 772 | mListener.onDisplayConnecting(display); |
| 773 | } |
| 774 | if (surface != null && surface != oldSurface) { |
| 775 | mListener.onDisplayConnected(display, surface, width, height, flags); |
| 776 | } |
| 777 | } |
| 778 | } |
| 779 | }); |
| 780 | } |
| 781 | } |
| 782 | |
| 783 | private void unadvertiseDisplay() { |
| 784 | advertiseDisplay(null, null, 0, 0, 0); |
| 785 | } |
| 786 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 787 | private static Inet4Address getInterfaceAddress(WifiP2pGroup info) { |
| 788 | NetworkInterface iface; |
| 789 | try { |
| 790 | iface = NetworkInterface.getByName(info.getInterface()); |
| 791 | } catch (SocketException ex) { |
| 792 | Slog.w(TAG, "Could not obtain address of network interface " |
| 793 | + info.getInterface(), ex); |
| 794 | return null; |
| 795 | } |
| 796 | |
| 797 | Enumeration<InetAddress> addrs = iface.getInetAddresses(); |
| 798 | while (addrs.hasMoreElements()) { |
| 799 | InetAddress addr = addrs.nextElement(); |
| 800 | if (addr instanceof Inet4Address) { |
| 801 | return (Inet4Address)addr; |
| 802 | } |
| 803 | } |
| 804 | |
| 805 | Slog.w(TAG, "Could not obtain address of network interface " |
| 806 | + info.getInterface() + " because it had no IPv4 addresses."); |
| 807 | return null; |
| 808 | } |
| 809 | |
Jeff Brown | 0f68d16 | 2012-09-11 12:18:15 -0700 | [diff] [blame] | 810 | private static int getPortNumber(WifiP2pDevice device) { |
| 811 | if (device.deviceName.startsWith("DIRECT-") |
| 812 | && device.deviceName.endsWith("Broadcom")) { |
| 813 | // These dongles ignore the port we broadcast in our WFD IE. |
| 814 | return 8554; |
| 815 | } |
| 816 | return DEFAULT_CONTROL_PORT; |
| 817 | } |
| 818 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 819 | private static boolean isWifiDisplay(WifiP2pDevice device) { |
Jeff Brown | 0f68d16 | 2012-09-11 12:18:15 -0700 | [diff] [blame] | 820 | return device.wfdInfo != null |
| 821 | && device.wfdInfo.isWfdEnabled() |
| 822 | && isPrimarySinkDeviceType(device.wfdInfo.getDeviceType()); |
| 823 | } |
| 824 | |
| 825 | private static boolean isPrimarySinkDeviceType(int deviceType) { |
| 826 | return deviceType == WifiP2pWfdInfo.PRIMARY_SINK |
| 827 | || deviceType == WifiP2pWfdInfo.SOURCE_OR_PRIMARY_SINK; |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 828 | } |
| 829 | |
| 830 | private static String describeWifiP2pDevice(WifiP2pDevice device) { |
| 831 | return device != null ? device.toString().replace('\n', ',') : "null"; |
| 832 | } |
| 833 | |
| 834 | private static String describeWifiP2pGroup(WifiP2pGroup group) { |
| 835 | return group != null ? group.toString().replace('\n', ',') : "null"; |
| 836 | } |
| 837 | |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 838 | private static WifiDisplay createWifiDisplay(WifiP2pDevice device) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 839 | return new WifiDisplay(device.deviceAddress, device.deviceName, null); |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 840 | } |
| 841 | |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 842 | private final BroadcastReceiver mWifiP2pReceiver = new BroadcastReceiver() { |
| 843 | @Override |
| 844 | public void onReceive(Context context, Intent intent) { |
| 845 | final String action = intent.getAction(); |
| 846 | if (action.equals(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION)) { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 847 | // This broadcast is sticky so we'll always get the initial Wifi P2P state |
| 848 | // on startup. |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 849 | boolean enabled = (intent.getIntExtra(WifiP2pManager.EXTRA_WIFI_STATE, |
| 850 | WifiP2pManager.WIFI_P2P_STATE_DISABLED)) == |
| 851 | WifiP2pManager.WIFI_P2P_STATE_ENABLED; |
| 852 | if (DEBUG) { |
| 853 | Slog.d(TAG, "Received WIFI_P2P_STATE_CHANGED_ACTION: enabled=" |
| 854 | + enabled); |
| 855 | } |
| 856 | |
| 857 | handleStateChanged(enabled); |
| 858 | } else if (action.equals(WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION)) { |
| 859 | if (DEBUG) { |
| 860 | Slog.d(TAG, "Received WIFI_P2P_PEERS_CHANGED_ACTION."); |
| 861 | } |
| 862 | |
| 863 | handlePeersChanged(); |
| 864 | } else if (action.equals(WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION)) { |
| 865 | NetworkInfo networkInfo = (NetworkInfo)intent.getParcelableExtra( |
| 866 | WifiP2pManager.EXTRA_NETWORK_INFO); |
| 867 | if (DEBUG) { |
| 868 | Slog.d(TAG, "Received WIFI_P2P_CONNECTION_CHANGED_ACTION: networkInfo=" |
| 869 | + networkInfo); |
| 870 | } |
| 871 | |
| 872 | handleConnectionChanged(networkInfo); |
| 873 | } |
| 874 | } |
| 875 | }; |
| 876 | |
| 877 | /** |
| 878 | * Called on the handler thread when displays are connected or disconnected. |
| 879 | */ |
| 880 | public interface Listener { |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 881 | void onFeatureStateChanged(int featureState); |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 882 | |
| 883 | void onScanStarted(); |
Jeff Brown | 89d5546 | 2012-09-19 11:33:42 -0700 | [diff] [blame] | 884 | void onScanFinished(WifiDisplay[] availableDisplays); |
Jeff Brown | e08ae38 | 2012-09-07 20:36:36 -0700 | [diff] [blame] | 885 | |
| 886 | void onDisplayConnecting(WifiDisplay display); |
| 887 | void onDisplayConnectionFailed(); |
Jeff Brown | f8f0edd | 2012-09-11 17:05:11 -0700 | [diff] [blame] | 888 | void onDisplayConnected(WifiDisplay display, |
| 889 | Surface surface, int width, int height, int flags); |
Jeff Brown | cbad976 | 2012-09-04 21:57:59 -0700 | [diff] [blame] | 890 | void onDisplayDisconnected(); |
| 891 | } |
| 892 | } |