Revision 1:fb4494783863, committed 2012-08-24

Comitter:

samux

Date:

Fri Aug 24 13:48:36 2012 +0000

Parent:

0:302ec35139ec

Child:

2:8e54830d0df7

Commit message:

first commit

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Helper/def.h	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,28 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+#ifndef DEF_H
+#define DEF_H
+
+#include "cmsis.h"
+#define htons(x)      __REV16(x)
+#define ntohs(x)      __REV16(x)
+#define htonl(x)      __REV(x)
+#define ntohl(x)      __REV(x)
+
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/Endpoint.cpp	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,50 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "Socket/Socket.h"
+#include "Socket/Endpoint.h"
+#include <cstring>
+
+using std::memset;
+
+Endpoint::Endpoint()  {
+    wifly = Wifly::getInstance();
+    if (wifly == NULL)
+        error("Endpoint constructor error: no wifly instance available!\r\n");
+    reset_address();
+}
+Endpoint::~Endpoint() {}
+
+void Endpoint::reset_address(void) {
+    _ipAddress[0] = '\0';
+    _port = 0;
+}
+
+int Endpoint::set_address(const char* host, const int port) {
+    //Resolve DNS address or populate hard-coded IP address
+    wifly->gethostbyname(host, _ipAddress);
+    _port = port;
+    return 0;
+}
+
+char* Endpoint::get_address() {
+    return _ipAddress;
+}
+
+int   Endpoint::get_port() {
+    return _port;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/Endpoint.h	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,65 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef ENDPOINT_H
+#define ENDPOINT_H
+
+#include "Wifly.h"
+
+class UDPSocket;
+
+/**
+IP Endpoint (address, port)
+*/
+class Endpoint {
+    friend class UDPSocket;
+
+public:
+    /** IP Endpoint (address, port)
+     */
+    Endpoint(void);
+    
+    ~Endpoint(void);
+    
+    /** Reset the address of this endpoint
+     */
+    void reset_address(void);
+    
+    /** Set the address of this endpoint
+    \param host The endpoint address (it can either be an IP Address or a hostname that will be resolved with DNS).
+    \param port The endpoint port
+    \return 0 on success, -1 on failure (when an hostname cannot be resolved by DNS).
+     */
+    int  set_address(const char* host, const int port);
+    
+    /** Get the IP address of this endpoint
+    \return The IP address of this endpoint.
+     */
+    char* get_address(void);
+    
+    /** Get the port of this endpoint
+    \return The port of this endpoint
+     */
+    int get_port(void);
+
+protected:
+    char _ipAddress[16];
+    int _port;
+    Wifly * wifly;
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/Socket.cpp	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,39 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+#include "Socket.h"
+#include <cstring>
+
+Socket::Socket() : _blocking(true), _timeout(1500) {
+    wifi = Wifly::getInstance();
+    if (wifi == NULL)
+        error("Socket constructor error: no wifly instance available!\r\n");
+}
+
+void Socket::set_blocking(bool blocking, unsigned int timeout) {
+    _blocking = blocking;
+    _timeout = timeout;
+}
+
+int Socket::close() {
+    return (wifi->close()) ? 0 : -1;
+}
+
+Socket::~Socket() {
+    close(); //Don't want to leak
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/Socket.h	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,51 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef SOCKET_H_
+#define SOCKET_H_
+
+#include "Wifly.h"
+
+/** Socket file descriptor and select wrapper
+  */
+class Socket {
+public:
+    /** Socket
+     */
+    Socket();
+    
+    /** Set blocking or non-blocking mode of the socket and a timeout on
+        blocking socket operations
+    \param blocking  true for blocking mode, false for non-blocking mode.
+    \param timeout   timeout in ms [Default: (1500)ms].
+    */
+    void set_blocking(bool blocking, unsigned int timeout=1500);
+    
+    /** Close the socket file descriptor
+     */
+    int close();
+    
+    ~Socket();
+    
+protected:
+    bool _blocking;
+    int _timeout;
+    Wifly * wifi;
+};
+
+
+#endif /* SOCKET_H_ */

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/TCPSocketConnection.cpp	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,125 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "TCPSocketConnection.h"
+#include <algorithm>
+
+TCPSocketConnection::TCPSocketConnection() {}
+
+int TCPSocketConnection::connect(const char* host, const int port)
+{  
+    if (!wifi->connect(host, port))
+        return -1;
+    wifi->flush();
+    return 0;
+}
+
+bool TCPSocketConnection::is_connected(void)
+{
+    return wifi->is_connected();
+}
+
+int TCPSocketConnection::send(char* data, int length)
+{
+    Timer tmr;
+
+    if (!_blocking) {
+        tmr.start();
+        while (tmr.read_ms() < _timeout) {
+            if (wifi->writeable())
+                break;
+        }
+        if (tmr.read_ms() >= _timeout) {
+            return -1;
+        }
+    }
+    return wifi->send(data, length);
+}
+
+// -1 if unsuccessful, else number of bytes written
+int TCPSocketConnection::send_all(char* data, int length)
+{
+    Timer tmr;
+    int idx = 0;
+    tmr.start();
+
+    while ((tmr.read_ms() < _timeout) || _blocking) {
+
+        idx += wifi->send(data, length);
+
+        if (idx == length)
+            return idx;
+    }
+    return (idx == 0) ? -1 : idx;
+}
+
+// -1 if unsuccessful, else number of bytes received
+int TCPSocketConnection::receive(char* data, int length)
+{
+    Timer tmr;
+    int time = -1;
+    
+    
+    if (!_blocking) {
+        tmr.start();
+        while (time < _timeout + 20) {
+            if (wifi->readable()) {
+                break;
+            }
+            time = tmr.read_ms();
+        }
+        if (time >= _timeout + 20) {
+            return -1;
+        }
+    }
+
+
+    while(!wifi->readable());
+    int nb_available = wifi->readable();
+    for (int i = 0; i < min(nb_available, length); i++) {
+        data[i] = wifi->getc();
+    }
+
+    return min(nb_available, length);
+}
+
+
+// -1 if unsuccessful, else number of bytes received
+int TCPSocketConnection::receive_all(char* data, int length)
+{
+    Timer tmr;
+    int idx = 0;
+    int time = -1;
+
+    tmr.start();
+    
+    while (time < _timeout || _blocking) {
+
+        int nb_available = wifi->readable();
+        for (int i = 0; i < min(nb_available, length); i++) {
+            data[idx++] = wifi->getc();
+        }
+
+        if (idx == length)
+            break;
+
+        time = tmr.read_ms();
+    }
+
+    return (idx == 0) ? -1 : idx;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/TCPSocketConnection.h	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,76 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef TCPSOCKET_H
+#define TCPSOCKET_H
+
+#include "Socket.h"
+#include "Endpoint.h"
+
+/**
+TCP socket connection
+*/
+class TCPSocketConnection: public Socket, public Endpoint {
+    
+public:
+    /** TCP socket connection
+    */
+    TCPSocketConnection();
+    
+    /** Connects this TCP socket to the server
+    \param host The host to connect to. It can either be an IP Address or a hostname that will be resolved with DNS.
+    \param port The host's port to connect to.
+    \return 0 on success, -1 on failure.
+    */
+    int connect(const char* host, const int port);
+    
+    /** Check if the socket is connected
+    \return true if connected, false otherwise.
+    */
+    bool is_connected(void);
+    
+    /** Send data to the remote host.
+    \param data The buffer to send to the host.
+    \param length The length of the buffer to send.
+    \return the number of written bytes on success (>=0) or -1 on failure
+     */
+    int send(char* data, int length);
+    
+    /** Send all the data to the remote host.
+    \param data The buffer to send to the host.
+    \param length The length of the buffer to send.
+    \return the number of written bytes on success (>=0) or -1 on failure
+    */
+    int send_all(char* data, int length);
+    
+    /** Receive data from the remote host.
+    \param data The buffer in which to store the data received from the host.
+    \param length The maximum length of the buffer.
+    \return the number of received bytes on success (>=0) or -1 on failure
+     */
+    int receive(char* data, int length);
+    
+    /** Receive all the data from the remote host.
+    \param data The buffer in which to store the data received from the host.
+    \param length The maximum length of the buffer.
+    \return the number of received bytes on success (>=0) or -1 on failure
+    */
+    int receive_all(char* data, int length);
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/TCPSocketServer.cpp	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,70 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "TCPSocketServer.h"
+#include <string>
+
+TCPSocketServer::TCPSocketServer() {}
+
+// Server initialization
+int TCPSocketServer::bind(int port) {
+    char cmd[20];
+    
+    // set TCP protocol
+    wifi->setProtocol(TCP);
+    
+    // set local port
+    sprintf(cmd, "set i l %d\r", port);
+    if (!wifi->sendCommand(cmd, "AOK"))
+        return -1;
+        
+    wifi->exit();
+    return 0;
+}
+
+int TCPSocketServer::listen(int backlog) {
+    if (backlog != 1)
+        return -1;
+    return 0;
+}
+
+
+int TCPSocketServer::accept(TCPSocketConnection& connection) {
+    int nb_available = 0, pos = 0;
+    char c;
+    string str;
+    bool o_find = false;
+    while (1) {
+        while(!wifi->readable());
+        nb_available = wifi->readable();
+        for (int i = 0; i < nb_available; i++) {
+            c = wifi->getc();
+            if (c == '*') {
+                o_find = true;
+            }
+            if (o_find && c != '\r' && c != '\n') {
+                str += c;
+                pos = str.find("*OPEN*");
+                if (pos != string::npos) {
+                    wifi->flush();
+                    return 0;
+                }
+            }
+        }
+    }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/TCPSocketServer.h	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,52 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef TCPSOCKETSERVER_H
+#define TCPSOCKETSERVER_H
+
+#include "Socket/Socket.h"
+#include "TCPSocketConnection.h"
+
+/** TCP Server.
+  */
+class TCPSocketServer : public Socket {
+  public:
+    /** Instantiate a TCP Server.
+    */
+    TCPSocketServer();
+    
+    /** Bind a socket to a specific port.
+    \param port The port to listen for incoming connections on.
+    \return 0 on success, -1 on failure.
+    */
+    int bind(int port);
+    
+    /** Start listening for incoming connections.
+    \param backlog number of pending connections that can be queued up at any
+                   one time [Default: 1].
+    \return 0 on success, -1 on failure.
+    */
+    int listen(int backlog=1);
+    
+    /** Accept a new connection.
+    \param connection A TCPSocketConnection instance that will handle the incoming connection.
+    \return 0 on success, -1 on failure.
+    */
+    int accept(TCPSocketConnection& connection);
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/UDPSocket.cpp	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,166 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "UDPSocket.h"
+
+#include <string>
+#include <algorithm>
+
+UDPSocket::UDPSocket()
+{
+    endpoint_configured = false;
+    endpoint_read = false;
+}
+
+int UDPSocket::init(void)
+{
+    wifi->setProtocol(UDP);
+    wifi->exit();
+    return 0;
+}
+
+// Server initialization
+int UDPSocket::bind(int port)
+{
+    char cmd[17];
+    
+    // set udp protocol
+    wifi->setProtocol(UDP);
+    
+    // set local port
+    sprintf(cmd, "set i l %d\r", port);
+    if (!wifi->sendCommand(cmd, "AOK"))
+        return -1;
+    wifi->exit();
+    return 0;
+}
+
+// -1 if unsuccessful, else number of bytes written
+int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
+{
+    Timer tmr;
+    int idx = 0;
+
+    confEndpoint(remote);
+
+    tmr.start();
+
+    while ((tmr.read_ms() < _timeout) || _blocking) {
+
+        idx += wifi->send(packet, length);
+
+        if (idx == length)
+            return idx;
+    }
+    return (idx == 0) ? -1 : idx;
+}
+
+// -1 if unsuccessful, else number of bytes received
+int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
+{
+    Timer tmr;
+    int idx = 0;
+    int nb_available = 0;
+    int time = -1;
+
+    if (_blocking) {
+        while (1) {
+            nb_available = wifi->readable();
+            if (nb_available != 0) {
+                break;
+            }
+        }
+    }
+
+    tmr.start();
+
+    while (time < _timeout) {
+
+        nb_available = wifi->readable();
+        for (int i = 0; i < min(nb_available, length); i++) {
+            buffer[idx] = wifi->getc();
+            idx++;
+        }
+
+        if (idx == length) {
+            break;
+        }
+        
+        time = tmr.read_ms();
+    }
+
+    readEndpoint(remote);
+    return (idx == 0) ? -1 : idx;
+}
+
+bool UDPSocket::confEndpoint(Endpoint & ep)
+{
+    char * host;
+    char cmd[30];
+    if (!endpoint_configured) {
+        host = ep.get_address();
+        if (host[0] != '\0') {
+            // set host
+            sprintf(cmd, "set i h %s\r", host);
+            if (!wifi->sendCommand(cmd, "AOK"))
+                return false;
+                
+            // set remote port
+            sprintf(cmd, "set i r %d\r", ep.get_port());
+            if (!wifi->sendCommand(cmd, "AOK"))
+                return false;
+                
+            wifi->exit();
+            endpoint_configured = true;
+            return true;
+        }
+    }
+    return true;
+}
+
+bool UDPSocket::readEndpoint(Endpoint & ep)
+{
+    char recv[256];
+    int begin = 0;
+    int end = 0;
+    string str;
+    string addr;
+    int port;
+    if (!endpoint_read) {
+        if (!wifi->sendCommand("get ip\r", NULL, recv))
+            return false;
+        wifi->exit();
+        str = recv;
+        begin = str.find("HOST=");
+        end = str.find("PROTO=");
+        if (begin != string::npos && end != string::npos) {
+            str = str.substr(begin + 5, end - begin - 5);
+            int pos = str.find(":");
+            if (pos != string::npos) {
+                addr = str.substr(0, pos);
+                port = atoi(str.substr(pos + 1).c_str());
+                ep.set_address(addr.c_str(), port);
+                endpoint_read = true;
+                wifi->flush();
+                return true;
+            }
+        }
+        wifi->flush();
+    }
+    return false;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/UDPSocket.h	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,75 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef UDPSOCKET_H
+#define UDPSOCKET_H
+
+#include "Endpoint.h"
+#include "Socket.h"
+
+#include <cstdint>
+
+/**
+UDP Socket
+*/
+class UDPSocket: public Socket {
+
+public:
+    /** Instantiate an UDP Socket.
+    */
+    UDPSocket();
+    
+    /** Init the UDP Client Socket without binding it to any specific port
+    \return 0 on success, -1 on failure.
+    */
+    int init(void);
+    
+    /** Bind a UDP Server Socket to a specific port
+    \param port The port to listen for incoming connections on
+    \return 0 on success, -1 on failure.
+    */
+    int bind(int port = -1);
+    
+    /** Send a packet to a remote endpoint
+    \param remote   The remote endpoint
+    \param packet   The packet to be sent
+    \param length   The length of the packet to be sent
+    \return the number of written bytes on success (>=0) or -1 on failure
+    */
+    int sendTo(Endpoint &remote, char *packet, int length);
+    
+    /** Receive a packet from a remote endpoint
+    \param remote   The remote endpoint
+    \param buffer   The buffer for storing the incoming packet data. If a packet
+           is too long to fit in the supplied buffer, excess bytes are discarded
+    \param length   The length of the buffer
+    \return the number of received bytes on success (>=0) or -1 on failure
+    */
+    int receiveFrom(Endpoint &remote, char *buffer, int length);
+    
+private:
+    bool confEndpoint(Endpoint & ep);
+    bool readEndpoint(Endpoint & ep);
+    bool endpoint_configured;
+    bool endpoint_read;
+    
+};
+
+#include "def.h"
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Wifly/CBuffer.h	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,75 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef CIRCBUFFER_H_
+#define CIRCBUFFER_H_
+
+template <class T>
+class CircBuffer {
+public:
+    CircBuffer(int length) {
+        write = 0;
+        read = 0;
+        size = length + 1;
+        buf = (T *)malloc(size * sizeof(T));
+    };
+
+    bool isFull() {
+        return (((write + 1) % size) == read);
+    };
+
+    bool isEmpty() {
+        return (read == write);
+    };
+
+    void queue(T k) {
+        if (isFull()) {
+            read++;
+            read %= size;
+        }
+        buf[write++] = k;
+        write %= size;
+    }
+    
+    void flush() {
+        read = 0;
+        write = 0;
+    }
+    
+
+    uint32_t available() {
+        return (write >= read) ? write - read : size - read + write;
+    };
+
+    bool dequeue(T * c) {
+        bool empty = isEmpty();
+        if (!empty) {
+            *c = buf[read++];
+            read %= size;
+        }
+        return(!empty);
+    };
+
+private:
+    volatile uint32_t write;
+    volatile uint32_t read;
+    uint32_t size;
+    T * buf;
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Wifly/Wifly.cpp	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,532 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "mbed.h"
+#include "Wifly.h"
+#include <string>
+#include <algorithm>
+
+//Debug is disabled by default
+#if (0 && defined(TARGET_LPC1768))
+#define DBG(x, ...) std::printf("[Wifly : DBG]"x"\r\n", ##__VA_ARGS__);
+#define WARN(x, ...) std::printf("[Wifly : WARN]"x"\r\n", ##__VA_ARGS__);
+#define ERR(x, ...) std::printf("[Wifly : ERR]"x"\r\n", ##__VA_ARGS__);
+#else
+#define DBG(x, ...)
+#define WARN(x, ...)
+#define ERR(x, ...)
+#endif
+
+#if TARGET_LPC1768
+#define INFO(x, ...) printf("[Wifly : INFO]"x"\r\n", ##__VA_ARGS__);
+#else
+#define INFO(x, ...)
+#endif
+
+#define MAX_TRY_JOIN 3
+
+Wifly * Wifly::inst;
+
+Wifly::Wifly(   PinName tx, PinName rx, PinName _reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec):
+    wifi(tx, rx), reset_pin(_reset), tcp_status(tcp_status), buf_wifly(256)
+{
+    memset(&state, 0, sizeof(state));
+    state.sec = sec;
+
+    // change all ' ' in '$' in the ssid and the passphrase
+    strcpy(this->ssid, ssid);
+    for (int i = 0; i < strlen(ssid); i++) {
+        if (this->ssid[i] == ' ')
+            this->ssid[i] = '$';
+    }
+    strcpy(this->phrase, phrase);
+    for (int i = 0; i < strlen(phrase); i++) {
+        if (this->phrase[i] == ' ')
+            this->phrase[i] = '$';
+    }
+
+    inst = this;
+    attach_rx(false);
+    state.cmd_mode = false;
+}
+
+bool Wifly::join()
+{
+    char cmd[20];
+
+    for (int i= 0; i < MAX_TRY_JOIN; i++) {
+        // set time
+        if (!sendCommand("set c t 20\r", "AOK"))
+            continue;
+
+        // set size
+        if (!sendCommand("set c s 128\r", "AOK"))
+            continue;
+
+        // red led on when tcp connection active
+        if (!sendCommand("set s i 0x40\r", "AOK"))
+            continue;
+
+        // no string sent to the tcp client
+        if (!sendCommand("set c r 0\r", "AOK"))
+            continue;
+
+        // tcp protocol
+        if (!sendCommand("set i p 2\r", "AOK"))
+            continue;
+
+        // tcp retry
+        if (!sendCommand("set i f 0x7\r", "AOK"))
+            continue;
+
+        //no echo
+        if (!sendCommand("set u m 1\r", "AOK"))
+            continue;
+
+        // no auto join
+        if (!sendCommand("set w j 0\r", "AOK"))
+            continue;
+
+        //dhcp
+        sprintf(cmd, "set i d %d\r", (state.dhcp) ? 1 : 0);
+        if (!sendCommand(cmd, "AOK"))
+            continue;
+
+        // ssid
+        sprintf(cmd, "set w s %s\r", ssid);
+        if (!sendCommand(cmd, "AOK"))
+            continue;
+
+        //auth
+        sprintf(cmd, "set w a %d\r", state.sec);
+        if (!sendCommand(cmd, "AOK"))
+            continue;
+
+        // if no dhcp, set ip, netmask and gateway
+        if (!state.dhcp) {
+            DBG("not dhcp\r");
+
+            sprintf(cmd, "set i a %s\r\n", ip);
+            if (!sendCommand(cmd, "AOK"))
+                continue;
+
+            sprintf(cmd, "set i n %s\r", netmask);
+            if (!sendCommand(cmd, "AOK"))
+                continue;
+
+            sprintf(cmd, "set i g %s\r", gateway);
+            if (!sendCommand(cmd, "AOK"))
+                continue;
+        }
+
+        //key step
+        if (state.sec != NONE) {
+            if (state.sec == WPA)
+                sprintf(cmd, "set w p %s\r", phrase);
+            else if (state.sec == WEP_128)
+                sprintf(cmd, "set w k %s\r", phrase);
+
+            if (!sendCommand(cmd, "AOK"))
+                continue;
+        }
+
+        //join the network
+        sprintf(cmd, "join\r");
+        if (!sendCommand(cmd, "Associated", NULL, 3000))
+            continue;
+
+        if (state.dhcp) {
+            if (!sendCommand("", "DHCP=ON", NULL, 3000))
+                continue;
+        }
+
+        exit();
+
+        state.associated = true;
+        INFO("\r\nssid: %s\r\nphrase: %s\r\nsecurity: %s\r\n\r\n", this->ssid, this->phrase, getStringSecurity());
+        return true;
+    }
+    return false;
+}
+
+
+bool Wifly::setProtocol(Protocol p)
+{
+    // use udp auto pairing
+    char cmd[20];
+    sprintf(cmd, "set i p %d\r", p);
+    if (!sendCommand(cmd, "AOK"))
+        return false;
+
+    switch(p) {
+        case TCP:
+            // set ip flags: tcp retry enabled
+            if (!sendCommand("set i f 0x07\r", "AOK"))
+                return false;
+            break;
+        case UDP:
+            // set ip flags: udp auto pairing enabled
+            if (!sendCommand("set i f 0x40\r", "AOK"))
+                return false;
+            if (!sendCommand("set i h 0.0.0.0\r", "AOK"))
+                return false;
+            if (!sendCommand("set i r 0\r", "AOK"))
+                return false;
+            break;
+    }
+    state.proto = p;
+    return true;
+}
+
+char * Wifly::getStringSecurity()
+{
+    switch(state.sec) {
+        case NONE:
+            return "NONE";
+        case WEP_128:
+            return "WEP_128";
+        case WPA:
+            return "WPA";
+    }
+    return "UNKNOWN";
+}
+
+bool Wifly::connect(const char * host, int port)
+{
+    char rcv[20];
+    char cmd[20];
+
+    // get ip from host and set host
+    if (gethostbyname(host, rcv)) {
+        sprintf(cmd, "set i h %s\r", rcv);
+        if (!sendCommand(cmd, "AOK"))
+            return false;
+    } else {
+        return false;
+    }
+
+    // set port
+    sprintf(cmd, "set i r %d\r", port);
+    if (!sendCommand(cmd, "AOK"))
+        return false;
+
+    // open
+    if (sendCommand("open\r", NULL, rcv)) {
+        if (strstr(rcv, "OPEN") == NULL) {
+            if (strstr(rcv, "Connected") != NULL) {
+                if (!sendCommand("close\r", "CLOS"))
+                    return false;
+                if (!sendCommand("open\r", "OPEN"))
+                    return false;
+            } else {
+                return false;
+            }
+        }
+    } else {
+        return false;
+    }
+    
+    state.tcp = true;
+    state.cmd_mode = false;
+
+    return true;
+}
+
+
+bool Wifly::gethostbyname(const char * host, char * ip)
+{
+    string h = host;
+    char cmd[30], rcv[100];
+    int l = 0;
+    char * point;
+    int nb_digits = 0;
+
+    // no dns needed
+    int pos = h.find(".");
+    if (pos != string::npos) {
+        string sub = h.substr(0, h.find("."));
+        nb_digits = atoi(sub.c_str());
+    }
+    //printf("substrL %s\r\n", sub.c_str());
+    if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) {
+        strcpy(ip, host);
+    }
+    // dns needed
+    else {
+        nb_digits = 0;
+        sprintf(cmd, "lookup %s\r", host);
+        if (!sendCommand(cmd, NULL, rcv))
+            return false;
+
+        // look for the ip address
+        char * begin = strstr(rcv, "=") + 1;
+        for (int i = 0; i < 3; i++) {
+            point = strstr(begin + l, ".");
+            DBG("str: %s", begin + l);
+            l += point - (begin + l) + 1;
+        }
+        DBG("str: %s", begin + l);
+        while(*(begin + l + nb_digits) >= '0' && *(begin + l + nb_digits) <= '9') {
+            DBG("digit: %c", *(begin + l + nb_digits));
+            nb_digits++;
+        }
+        memcpy(ip, begin, l + nb_digits);
+        ip[l+nb_digits] = 0;
+        DBG("ip from dns: %s", ip);
+    }
+    return true;
+}
+
+
+void Wifly::flush()
+{
+    buf_wifly.flush();
+}
+
+bool Wifly::sendCommand(const char * cmd, const char * ack, char * res, int timeout)
+{
+    if (!state.cmd_mode) {
+        cmdMode();
+    }
+    if (send(cmd, strlen(cmd), ack, res, timeout) == -1) {
+        ERR("sendCommand: cannot %s\r\n", cmd);
+        exit();
+        return false;
+    }
+    return true;
+}
+
+bool Wifly::cmdMode()
+{
+    // if already in cmd mode, return
+    if (state.cmd_mode)
+        return true;
+        
+    if (send("$$$", 3, "CMD") == -1) {
+        ERR("cannot enter in cmd mode\r\n");
+        return false;
+    }
+    state.cmd_mode = true;
+    return true;
+}
+
+bool Wifly::disconnect()
+{
+    // if already disconnected, return
+    if (!state.associated)
+        return true;
+        
+    if (!sendCommand("leave\r", "DeAuth"))
+        return false;
+    exit();
+    
+    state.associated = false;
+    return true;
+
+}
+
+bool Wifly::is_connected()
+{
+    return (tcp_status.read() ==  1) ? true : false;
+}
+
+
+void Wifly::reset()
+{
+    reset_pin = 0;
+    wait(0.2);
+    reset_pin = 1;
+    wait(0.2);
+}
+
+bool Wifly::close()
+{
+    // if not connected, return
+    if (!state.tcp)
+        return true;
+        
+    wait(0.25);
+    if (!sendCommand("close\r", "CLOS"))
+        return false;
+    exit();
+    
+    state.tcp = false;
+    return true;
+}
+
+
+int Wifly::putc(char c)
+{
+    while (!wifi.writeable());
+    return wifi.putc(c);
+}
+
+
+bool Wifly::exit()
+{
+    flush();
+    if (!state.cmd_mode)
+        return true;
+    if (!sendCommand("exit\r", "EXIT"))
+        return false;
+    state.cmd_mode = false;
+    flush();
+    return true;
+}
+
+
+int Wifly::readable()
+{
+    return buf_wifly.available();
+}
+
+int Wifly::writeable()
+{
+    return wifi.writeable();
+}
+
+char Wifly::getc()
+{
+    char c;
+    while (!buf_wifly.available());
+    buf_wifly.dequeue(&c);
+    return c;
+}
+
+void Wifly::handler_rx(void)
+{
+    //read characters
+    while (wifi.readable())
+        buf_wifly.queue(wifi.getc());
+}
+
+void Wifly::attach_rx(bool callback)
+{
+    if (!callback)
+        wifi.attach(NULL);
+    else
+        wifi.attach(this, &Wifly::handler_rx);
+}
+
+
+int Wifly::send(const char * str, int len, const char * ACK, char * res, int timeout)
+{
+    char read;
+    size_t found = string::npos;
+    string checking;
+    Timer tmr;
+    int result = 0;
+
+    DBG("will send: %s\r\n",str);
+
+    attach_rx(false);
+
+    //We flush the buffer
+    while (wifi.readable())
+        wifi.getc();
+
+    if (!ACK || !strcmp(ACK, "NO")) {
+        for (int i = 0; i < len; i++)
+            result = (putc(str[i]) == str[i]) ? result + 1 : result;
+    } else {
+        //We flush the buffer
+        while (wifi.readable())
+            wifi.getc();
+
+        tmr.start();
+        for (int i = 0; i < len; i++)
+            result = (putc(str[i]) == str[i]) ? result + 1 : result;
+
+        while (1) {
+            if (tmr.read_ms() > timeout) {
+                //We flush the buffer
+                while (wifi.readable())
+                    wifi.getc();
+
+                DBG("check: %s\r\n", checking.c_str());
+
+                attach_rx(true);
+                return -1;
+            } else if (wifi.readable()) {
+                read = wifi.getc();
+                if ( read != '\r' && read != '\n') {
+                    checking += read;
+                    found = checking.find(ACK);
+                    if (found != string::npos) {
+                        wait(0.01);
+
+                        //We flush the buffer
+                        while (wifi.readable())
+                            wifi.getc();
+
+                        break;
+                    }
+                }
+            }
+        }
+        DBG("check: %s\r\n", checking.c_str());
+
+        attach_rx(true);
+        return result;
+    }
+
+    //the user wants the result from the command (ACK == NULL, res != NULL)
+    if ( res != NULL) {
+        int i = 0;
+        Timer timeout;
+        timeout.start();
+        tmr.reset();
+        while (1) {
+            if (timeout.read() > 2) {
+                if (i == 0) {
+                    res = NULL;
+                    break;
+                }
+                res[i] = '\0';
+                DBG("user str 1: %s\r\n", res);
+
+                break;
+            } else {
+                if (tmr.read_ms() > 300) {
+                    res[i] = '\0';
+                    DBG("user str: %s\r\n", res);
+
+                    break;
+                }
+                if (wifi.readable()) {
+                    tmr.start();
+                    read = wifi.getc();
+
+                    // we drop \r and \n
+                    if ( read != '\r' && read != '\n') {
+                        res[i++] = read;
+                    }
+                }
+            }
+        }
+        DBG("user str: %s\r\n", res);
+    }
+
+    //We flush the buffer
+    while (wifi.readable())
+        wifi.getc();
+
+    attach_rx(true);
+    DBG("result: %d\r\n", result)
+    return result;
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Wifly/Wifly.h	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,224 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * @section DESCRIPTION
+ *
+ * Wifly RN131-C, wifi module
+ *
+ * Datasheet:
+ *
+ * http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Wireless/WiFi/WiFly-RN-UM.pdf
+ */
+
+#ifndef WIFLY_H
+#define WIFLY_H
+
+#include "mbed.h"
+#include "CBuffer.h"
+
+#define DEFAULT_WAIT_RESP_TIMEOUT 500
+
+enum Security {
+    NONE = 0,
+    WEP_128 = 1,
+    WPA = 3
+};
+
+enum Protocol {
+    UDP = (1 << 0),
+    TCP = (1 << 1)
+};
+
+class Wifly
+{
+
+public:
+    /*
+    * Constructor
+    *
+    * @param tx mbed pin to use for tx line of Serial interface
+    * @param rx mbed pin to use for rx line of Serial interface
+    * @param reset reset pin of the wifi module ()
+    * @param tcp_status connection status pin of the wifi module (GPIO 6)
+    * @param ssid ssid of the network
+    * @param phrase WEP or WPA key
+    * @param sec Security type (NONE, WEP_128 or WPA)
+    */
+    Wifly(  PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec);
+
+    /*
+    * Connect the wifi module to the ssid contained in the constructor.
+    *
+    * @return true if connected, false otherwise
+    */
+    bool join();
+
+    /*
+    * Disconnect the wifly module from the access point
+    *
+    * @ returns true if successful
+    */
+    bool disconnect();
+
+    /*
+    * Open a tcp connection with the specified host on the specified port
+    *
+    * @param host host (can be either an ip address or a name. If a name is provided, a dns request will be established)
+    * @param port port
+    * @ returns true if successful
+    */
+    bool connect(const char * host, int port);
+
+
+    /*
+    * Set the protocol (UDP or TCP)
+    *
+    * @param p protocol
+    * @ returns true if successful
+    */
+    bool setProtocol(Protocol p);
+
+    /*
+    * Reset the wifi module
+    */
+    void reset();
+
+    /*
+    * Check if characters are available
+    *
+    * @return number of available characters
+    */
+    int readable();
+
+    /*
+    * Check if characters are available
+    *
+    * @return number of available characters
+    */
+    int writeable();
+
+    /*
+    * Check if a tcp link is active
+    *
+    * @returns true if successful
+    */
+    bool is_connected();
+
+    /*
+    * Read a character
+    *
+    * @return the character read
+    */
+    char getc();
+
+    /*
+    * Flush the buffer
+    */
+    void flush();
+
+    /*
+    * Write a character
+    *
+    * @param the character which will be written
+    */
+    int putc(char c);
+
+
+    /*
+    * To enter in command mode (we can configure the module)
+    *
+    * @return true if successful, false otherwise
+    */
+    bool cmdMode();
+
+    /*
+    * To exit the command mode
+    *
+    * @return true if successful, false otherwise
+    */
+    bool exit();
+
+    /*
+    * Close a tcp connection
+    *
+    * @ returns true if successful
+    */
+    bool close();
+
+    /*
+    * Send a string to the wifi module by serial port. This function desactivates the user interrupt handler when a character is received to analyze the response from the wifi module.
+    * Useful to send a command to the module and wait a response.
+    *
+    *
+    * @param str string to be sent
+    * @param len string length
+    * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO")
+    * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL)
+    *
+    * @return true if ACK has been found in the response from the wifi module. False otherwise or if there is no response in 5s.
+    */
+    int send(const char * str, int len, const char * ACK = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT);
+
+    /*
+    * Send a command to the wify module. Check if the module is in command mode. If not enter in command mode
+    *
+    * @param str string to be sent
+    * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO")
+    * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL)
+    *
+    * @returns true if successful
+    */
+    bool sendCommand(const char * cmd, const char * ack = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT);
+
+    bool gethostbyname(const char * host, char * ip);
+
+    static Wifly * getInstance() {
+        return inst;
+    };
+
+protected:
+    Serial wifi;
+    DigitalOut reset_pin;
+    DigitalIn tcp_status;
+    char phrase[30];
+    char ssid[30];
+    const char * ip;
+    const char * netmask;
+    const char * gateway;
+    int channel;
+    CircBuffer<char> buf_wifly;
+
+    static Wifly * inst;
+
+    void attach_rx(bool null);
+    void handler_rx(void);
+
+
+    typedef struct STATE {
+        bool associated;
+        bool tcp;
+        bool dhcp;
+        Security sec;
+        Protocol proto;
+        bool cmd_mode;
+    } State;
+
+    State state;
+    char * getStringSecurity();
+};
+
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WiflyInterface.cpp	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,62 @@
+#include "WiflyInterface.h"
+
+WiflyInterface::WiflyInterface( PinName tx, PinName rx, PinName reset, PinName tcp_status,
+                                const char * ssid, const char * phrase, Security sec) :
+    Wifly(tx, rx, reset, tcp_status, ssid, phrase, sec)
+{
+    ip_set = false;
+}
+
+int WiflyInterface::init()
+{
+    state.dhcp = true;
+    reset();
+    return 0;
+}
+
+int WiflyInterface::init(const char* ip, const char* mask, const char* gateway)
+{
+    state.dhcp = false;
+    this->ip = ip;
+    strcpy(ip_string, ip);
+    ip_set = true;
+    this->netmask = mask;
+    this->gateway = gateway;
+    reset();
+
+    return 0;
+}
+
+int WiflyInterface::connect()
+{
+    return join();
+}
+
+int WiflyInterface::disconnect()
+{
+    return Wifly::disconnect();
+}
+
+char * WiflyInterface::getIPAddress()
+{
+    char * match = 0;
+    if (!ip_set) {
+        if (!sendCommand("get ip a\r", NULL, ip_string))
+            return NULL;
+        exit();
+        flush();
+        match = strstr(ip_string, "<");
+        if (match != NULL) {
+            *match = '\0';
+        }
+        if (strlen(ip_string) < 6) {
+            match = strstr(ip_string, ">");
+            if (match != NULL) {
+                int len = strlen(match + 1);
+                memcpy(ip_string, match + 1, len);
+            }
+        }
+        ip_set = true;
+    }
+    return ip_string;
+}
\ No newline at end of file

--- a/WiflyInterface.h	Fri Aug 24 13:29:01 2012 +0000
+++ b/WiflyInterface.h	Fri Aug 24 13:48:36 2012 +0000
@@ -20,4 +20,67 @@
 #ifndef WIFLYINTERFACE_H_
 #define WIFLYINTERFACE_H_
 
-#endif
\ No newline at end of file
+#include "Wifly.h"
+
+ /** Interface using Wifly to connect to an IP-based network
+ *
+ */
+class WiflyInterface: public Wifly {
+public:
+
+    /**
+    * Constructor
+    *
+    * \param tx mbed pin to use for tx line of Serial interface
+    * \param rx mbed pin to use for rx line of Serial interface
+    * \param reset reset pin of the wifi module ()
+    * \param tcp_status connection status pin of the wifi module (GPIO 6)
+    * \param ssid ssid of the network
+    * \param phrase WEP or WPA key
+    * \param sec Security type (NONE, WEP_128 or WPA)
+    */
+  WiflyInterface(PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec = NONE);
+
+  /** Initialize the interface with DHCP.
+  * Initialize the interface and configure it to use DHCP (no connection at this point).
+  * \return 0 on success, a negative number on failure
+  */
+  int init(); //With DHCP
+
+  /** Initialize the interface with a static IP address.
+  * Initialize the interface and configure it with the following static configuration (no connection at this point).
+  * \param ip the IP address to use
+  * \param mask the IP address mask
+  * \param gateway the gateway to use
+  * \return 0 on success, a negative number on failure
+  */
+  int init(const char* ip, const char* mask, const char* gateway);
+
+  /** Connect
+  * Bring the interface up, start DHCP if needed.
+  * \return 0 on success, a negative number on failure
+  */
+  int connect();
+  
+  /** Disconnect
+  * Bring the interface down
+  * \return 0 on success, a negative number on failure
+  */
+  int disconnect();
+  
+  /** Get IP address
+  *
+  * @ returns ip address
+  */
+  char* getIPAddress();
+  
+private:
+    char ip_string[20];
+    bool ip_set;
+};
+
+#include "TCPSocketConnection.h"
+#include "TCPSocketServer.h"
+#include "UDPSocket.h"
+
+#endif /* WIFLYINTERFACE_H_ */