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Commit c111d1ca authored by Irfan Sheriff's avatar Irfan Sheriff
Browse files

Add discovery broadcasts for p2p 

This will allow apps to figure out if discovery is active or not
and based on that initiate a new discovery for fresh connections

Change-Id: I4778f135fdd88773e4f0d50c384f9b6ebf561e6d
parent 61472a83

api/current.txt

+4 −0
Original line number Diff line number Diff line
@@ -12732,12 +12732,16 @@ package android.net.wifi.p2p { 
    method public void requestPeers(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.PeerListListener);

    field public static final int BUSY = 2; // 0x2

    field public static final int ERROR = 0; // 0x0

    field public static final java.lang.String EXTRA_DISCOVERY_STATE = "discoveryState";

    field public static final java.lang.String EXTRA_NETWORK_INFO = "networkInfo";

    field public static final java.lang.String EXTRA_WIFI_P2P_DEVICE = "wifiP2pDevice";

    field public static final java.lang.String EXTRA_WIFI_P2P_INFO = "wifiP2pInfo";

    field public static final java.lang.String EXTRA_WIFI_STATE = "wifi_p2p_state";

    field public static final int P2P_UNSUPPORTED = 1; // 0x1

    field public static final java.lang.String WIFI_P2P_CONNECTION_CHANGED_ACTION = "android.net.wifi.p2p.CONNECTION_STATE_CHANGE";

    field public static final java.lang.String WIFI_P2P_DISCOVERY_CHANGED_ACTION = "android.net.wifi.p2p.DISCOVERY_STATE_CHANGE";

    field public static final int WIFI_P2P_DISCOVERY_STARTED = 2; // 0x2

    field public static final int WIFI_P2P_DISCOVERY_STOPPED = 1; // 0x1

    field public static final java.lang.String WIFI_P2P_PEERS_CHANGED_ACTION = "android.net.wifi.p2p.PEERS_CHANGED";

    field public static final java.lang.String WIFI_P2P_STATE_CHANGED_ACTION = "android.net.wifi.p2p.STATE_CHANGED";

    field public static final int WIFI_P2P_STATE_DISABLED = 1; // 0x1

wifi/java/android/net/wifi/WifiMonitor.java

+6 −0
Original line number Diff line number Diff line
@@ -166,6 +166,9 @@ public class WifiMonitor { 
    /* P2P-DEVICE-LOST p2p_dev_addr=42:fc:89:e1:e2:27 */

    private static final String P2P_DEVICE_LOST_STR = "P2P-DEVICE-LOST";



    /* P2P-FIND-STOPPED */

    private static final String P2P_FIND_STOPPED_STR = "P2P-FIND-STOPPED";



    /* P2P-GO-NEG-REQUEST 42:fc:89:a8:96:09 dev_passwd_id=4 */

    private static final String P2P_GO_NEG_REQUEST_STR = "P2P-GO-NEG-REQUEST";
@@ -264,6 +267,7 @@ public class WifiMonitor { 
    public static final int P2P_PROV_DISC_PBC_RSP_EVENT          = BASE + 34;

    public static final int P2P_PROV_DISC_ENTER_PIN_EVENT        = BASE + 35;

    public static final int P2P_PROV_DISC_SHOW_PIN_EVENT         = BASE + 36;

    public static final int P2P_FIND_STOPPED_EVENT               = BASE + 37;



    /* hostap events */

    public static final int AP_STA_DISCONNECTED_EVENT            = BASE + 41;
@@ -516,6 +520,8 @@ public class WifiMonitor { 
                mStateMachine.sendMessage(P2P_DEVICE_FOUND_EVENT, new WifiP2pDevice(dataString));

            } else if (dataString.startsWith(P2P_DEVICE_LOST_STR)) {

                mStateMachine.sendMessage(P2P_DEVICE_LOST_EVENT, new WifiP2pDevice(dataString));

            } else if (dataString.startsWith(P2P_FIND_STOPPED_STR)) {

                mStateMachine.sendMessage(P2P_FIND_STOPPED_EVENT);

            } else if (dataString.startsWith(P2P_GO_NEG_REQUEST_STR)) {

                mStateMachine.sendMessage(P2P_GO_NEGOTIATION_REQUEST_EVENT,

                        new WifiP2pConfig(dataString));

wifi/java/android/net/wifi/p2p/WifiP2pManager.java

+35 −0
Original line number Diff line number Diff line
@@ -181,6 +181,41 @@ public class WifiP2pManager { 
    public static final String WIFI_P2P_PEERS_CHANGED_ACTION =

        "android.net.wifi.p2p.PEERS_CHANGED";



    /**

     * Broadcast intent action indicating that peer discovery has either started or stopped.

     * One extra {@link #EXTRA_DISCOVERY_STATE} indicates whether discovery has started

     * or stopped.

     *

     * Note that discovery will be stopped during a connection setup. If the application tries

     * to re-initiate discovery during this time, it can fail.

     */

    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)

    public static final String WIFI_P2P_DISCOVERY_CHANGED_ACTION =

        "android.net.wifi.p2p.DISCOVERY_STATE_CHANGE";



    /**

     * The lookup key for an int that indicates whether p2p discovery has started or stopped.

     * Retrieve it with {@link android.content.Intent#getIntExtra(String,int)}.

     *

     * @see #WIFI_P2P_DISCOVERY_STARTED

     * @see #WIFI_P2P_DISCOVERY_STOPPED

     */

    public static final String EXTRA_DISCOVERY_STATE = "discoveryState";



    /**

     * p2p discovery has stopped

     *

     * @see #WIFI_P2P_DISCOVERY_CHANGED_ACTION

     */

    public static final int WIFI_P2P_DISCOVERY_STOPPED = 1;



    /**

     * p2p discovery has started

     *

     * @see #WIFI_P2P_DISCOVERY_CHANGED_ACTION

     */

    public static final int WIFI_P2P_DISCOVERY_STARTED = 2;



    /**

     * Broadcast intent action indicating that this device details have changed.

     */

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

+23 −0
Original line number Diff line number Diff line
@@ -140,6 +140,11 @@ public class WifiP2pService extends IWifiP2pManager.Stub { 
     * is invoked */

    private boolean mPersistGroup;



    /* Track whether we are in p2p discovery. This is used to avoid sending duplicate

     * broadcasts

     */

    private boolean mDiscoveryStarted;



    private NetworkInfo mNetworkInfo;



    /* Is chosen as a unique range to avoid conflict with
@@ -489,11 +494,15 @@ public class WifiP2pService extends IWifiP2pManager.Stub { 
                case WifiP2pManager.DISCOVER_PEERS:

                    if (mWifiNative.p2pFind(DISCOVER_TIMEOUT_S)) {

                        replyToMessage(message, WifiP2pManager.DISCOVER_PEERS_SUCCEEDED);

                        sendP2pDiscoveryChangedBroadcast(true);

                    } else {

                        replyToMessage(message, WifiP2pManager.DISCOVER_PEERS_FAILED,

                                WifiP2pManager.ERROR);

                    }

                    break;

                case WifiMonitor.P2P_FIND_STOPPED_EVENT:

                    sendP2pDiscoveryChangedBroadcast(false);

                    break;

                case WifiP2pManager.STOP_DISCOVERY:

                    if (mWifiNative.p2pStopFind()) {

                        replyToMessage(message, WifiP2pManager.STOP_DISCOVERY_SUCCEEDED);
@@ -1030,6 +1039,20 @@ public class WifiP2pService extends IWifiP2pManager.Stub { 
        mContext.sendStickyBroadcast(intent);

    }



    private void sendP2pDiscoveryChangedBroadcast(boolean started) {

        if (mDiscoveryStarted == started) return;

        mDiscoveryStarted = started;



        if (DBG) logd("discovery change broadcast " + started);



        final Intent intent = new Intent(WifiP2pManager.WIFI_P2P_DISCOVERY_CHANGED_ACTION);

        intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);

        intent.putExtra(WifiP2pManager.EXTRA_DISCOVERY_STATE, started ?

                WifiP2pManager.WIFI_P2P_DISCOVERY_STARTED :

                WifiP2pManager.WIFI_P2P_DISCOVERY_STOPPED);

        mContext.sendStickyBroadcast(intent);

    }



    private void sendThisDeviceChangedBroadcast() {

        final Intent intent = new Intent(WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION);

        intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);