WFD fixes

- Specificy max GO intent for WFD
- Increase GO idle time out to 20s and use it for GO and client
- Fix connection broadcast

Change-Id: Ia0e28bc9eb3e23d2830a6c814c5a537ca0bcd5db

Author: isheriff

services/java/com/android/server/display/WifiDisplayController.java

@@ -483,6 +483,8 @@ private void next() {
             mConnectingDevice = mDesiredDevice;
             WifiP2pConfig config = new WifiP2pConfig();
             config.deviceAddress = mConnectingDevice.deviceAddress;
+            // Helps with STA & P2P concurrency
+            config.groupOwnerIntent = WifiP2pConfig.MAX_GROUP_OWNER_INTENT;
 
             final WifiDisplay display = createWifiDisplay(mConnectingDevice);
             mHandler.post(new Runnable() {

wifi/java/android/net/wifi/p2p/WifiP2pConfig.java

@@ -37,6 +37,9 @@ public class WifiP2pConfig implements Parcelable {
      */
     public WpsInfo wps;
 
+    /** @hide */
+    public static final int MAX_GROUP_OWNER_INTENT   =   15;
+
     /**
      * This is an integer value between 0 and 15 where 0 indicates the least
      * inclination to be a group owner and 15 indicates the highest inclination

wifi/java/android/net/wifi/p2p/WifiP2pService.java

@@ -135,7 +135,7 @@ public class WifiP2pService extends IWifiP2pManager.Stub {
     private static final int DISCOVER_TIMEOUT_S = 120;
 
     /* Idle time after a peer is gone when the group is torn down */
-    private static final int GROUP_IDLE_TIME_S = 5;
+    private static final int GROUP_IDLE_TIME_S = 20;
 
     /**
      * Delay between restarts upon failure to setup connection with supplicant
@@ -1221,13 +1221,10 @@ public boolean processMessage(Message message) {
                                 mGroup.getNetworkName()));
                     }
 
+                    mWifiNative.setP2pGroupIdle(mGroup.getInterface(), GROUP_IDLE_TIME_S);
                     if (mGroup.isGroupOwner()) {
                         startDhcpServer(mGroup.getInterface());
                     } else {
-                        // Set group idle only for a client on the group interface to speed up
-                        // disconnect when GO is gone. Setting group idle time for a group owner
-                        // causes connectivity issues for new clients
-                        mWifiNative.setP2pGroupIdle(mGroup.getInterface(), GROUP_IDLE_TIME_S);
                         mDhcpStateMachine = DhcpStateMachine.makeDhcpStateMachine(mContext,
                                 P2pStateMachine.this, mGroup.getInterface());
                         mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_START_DHCP);
@@ -1292,7 +1289,6 @@ public void enter() {
             //DHCP server has already been started if I am a group owner
             if (mGroup.isGroupOwner()) {
                 setWifiP2pInfoOnGroupFormation(SERVER_ADDRESS);
-                sendP2pConnectionChangedBroadcast();
             }
         }
 
@@ -1315,6 +1311,7 @@ public boolean processMessage(Message message) {
                     } else {
                         loge("Connect on null device address, ignore");
                     }
+                    sendP2pConnectionChangedBroadcast();
                     break;
                 case WifiMonitor.AP_STA_DISCONNECTED_EVENT:
                     device = (WifiP2pDevice) message.obj;