see http://mbed.org/users/okini3939/notebook/wattmeter-shield-on-mbed/

Dependencies:   mbed

Fork of GSwifi_xively by gs fan

Files at this revision

API Documentation at this revision

Comitter:
okini3939
Date:
Wed Nov 27 08:18:45 2013 +0000
Parent:
3:1abf2be8b312
Commit message:
update GSwifiInterface library

Changed in this revision

GSwifi.lib Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/CBuffer.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_at.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_conf.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_hal.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_http.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_httpd.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_httpd_util.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_httpd_ws.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_msg.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_smtp.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_sock.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/GSwifi_util.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/sha1.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifi/sha1.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifiInterface.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/GSwifiInterface.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Helper/def.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/Endpoint.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/Endpoint.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/Socket.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/Socket.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/TCPSocketConnection.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/TCPSocketConnection.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/TCPSocketServer.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/TCPSocketServer.h Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/UDPSocket.cpp Show annotated file Show diff for this revision Revisions of this file
GSwifiInterface/Socket/UDPSocket.h Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
--- a/GSwifi.lib	Tue Aug 20 04:34:57 2013 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-http://mbed.org/users/gsfan/code/GSwifi/#72f70748f6e8
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/CBuffer.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,78 @@
+/* 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));
+        if (buf == NULL)
+            error("Can't allocate memory");
+    };
+
+    bool isFull() {
+        return (((write + 1) % size) == read);
+    };
+
+    bool isEmpty() {
+        return (read == write);
+    };
+
+    void queue(T k) {
+        if (isFull()) {
+//            read++;
+//            read %= size;
+            return;
+        }
+        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/GSwifiInterface/GSwifi/GSwifi.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,433 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+#include <string>
+#include <algorithm>
+
+GSwifi * GSwifi::_inst;
+
+GSwifi::GSwifi(PinName tx, PinName rx, PinName cts, PinName rts, PinName reset, PinName alarm, int baud):
+    _gs(tx, rx), _reset(reset)
+{
+    _inst = this;
+    memset(&_state, 0, sizeof(_state));
+    memset(&_con, 0, sizeof(_con));
+    _state.initialized = false;
+    _state.status = STAT_READY;
+    _state.cid = -1;
+    _state.buf = new CircBuffer<char>(CFG_DATA_SIZE);
+#ifdef CFG_ENABLE_RTOS
+    for (int i = 0; i < 16; i ++) {
+        _con[i].buf = new CircBuffer<char>(CFG_DATA_SIZE);
+        if (_con[i].buf == NULL)
+            error("CircBuffer failed");
+    }
+    _threadPoll = NULL;
+#endif
+
+    setReset(true);
+    initUart(cts, rts, alarm, baud);
+    setAlarm(true);
+    wait_ms(10);
+    setAlarm(false);
+    wait_ms(100);
+    setReset(false);
+    wait_ms(100);
+}
+
+int GSwifi::join()
+{
+    int i;
+    bool r = -1;
+
+    _state.wm = WM_INFRASTRUCTURE;
+    _state.initialized = true;
+    if (!strlen(_state.name)) {
+        strncpy(_state.name, CFG_DHCPNAME, sizeof(_state.name));
+    }
+    clearFlags();
+    _state.mode = MODE_COMMAND;
+    sendCommand(NULL, RES_NULL, 0);
+    if (cmdE(false)) return -1;
+    if (_flow) {
+        cmdR(true);
+    }
+    cmdBDATA(true);
+    if (cmdNMAC()) return -1;
+    cmdWREGDOMAIN(CFG_WREGDOMAIN);
+    cmdWM(0); // infrastructure
+    wait_ms(100);
+
+    switch (_state.sec) {
+    case SEC_NONE:
+    case SEC_OPEN:
+    case SEC_WEP:
+        cmdNDHCP(_state.dhcp, _state.name, DEFAULT_WAIT_RESP_TIMEOUT);
+        cmdWAUTH(_state.sec);
+        if (_state.sec != SEC_NONE) {
+            cmdWWEP(1, _state.pass);
+            wait_ms(100);
+        }
+        for (i = 0; i < CFG_TRYJOIN; i ++) {
+            r = cmdWA(_state.ssid);
+            if (!r) break;
+            DBG("retry\r\n");
+            wait_ms(1000);
+        }
+        break;
+    case SEC_WPA_PSK:
+    case SEC_WPA2_PSK:
+        cmdNDHCP(_state.dhcp, _state.name, DEFAULT_WAIT_RESP_TIMEOUT);
+        cmdWAUTH(0);
+        cmdWPAPSK(_state.ssid, _state.pass);
+        wait_ms(100);
+        for (i = 0; i < CFG_TRYJOIN; i ++) {
+            r = cmdWA(_state.ssid);
+            if (!r) break;
+            DBG("retry\r\n");
+            wait_ms(1000);
+        }
+        break;
+    case SEC_WPA_ENT:
+    case SEC_WPA2_ENT:
+        cmdWAUTH(0);
+        DBG("Can't support security\r\n");
+        break;
+    case SEC_WPS_BUTTON:
+        cmdNDHCP(false);
+        cmdWAUTH(0);
+        r = cmdWWPS(true);
+        if (r) break;
+        if (_state.dhcp) {
+            r = cmdNDHCP(_state.dhcp, _state.name);
+        }
+        cmdWSTATUS();
+        cmdWPAPSK(_state.ssid, _state.pass);
+        break;
+    case SEC_WPS_PIN:
+        cmdNDHCP(false);
+        cmdWAUTH(0);
+        r = cmdWWPS(true, _state.pass);
+        if (r) break;
+        if (_state.dhcp) {
+            r = cmdNDHCP(_state.dhcp, _state.name);
+        }
+        cmdWSTATUS();
+        cmdWPAPSK(_state.ssid, _state.pass);
+        break;
+    default:
+        DBG("Can't use security\r\n");
+        break;
+    }
+
+    if (!r) {
+        // connected
+        if (! _state.dhcp) {
+            cmdDNSSET(_state.nameserver);
+        }
+        _state.associated = true;
+#ifdef CFG_ENABLE_RTOS
+        _threadPoll = new Thread(&threadPoll);
+//        _threadPoll = new Thread(&threadPoll, NULL, osPriorityLow);
+#endif
+    }
+    return r;
+}
+
+int GSwifi::adhock ()
+{
+    bool r = -1;
+
+    _state.wm = WM_ADHOCK;
+    _state.initialized = true;
+    clearFlags();
+    _state.mode = MODE_COMMAND;
+    sendCommand(NULL, RES_NULL, 0);
+    if (cmdE(false)) return -1;
+    if (_flow) {
+        cmdR(true);
+    }
+    if (cmdNMAC()) return -1;
+    cmdBDATA(true);
+    cmdWREGDOMAIN(CFG_WREGDOMAIN);
+    cmdWM(1); // adhock
+    wait_ms(100);
+
+    cmdNDHCP(false);
+    if (! _state.dhcp) {
+        cmdNSET(_state.ip, _state.netmask, _state.ip);
+    }
+
+    switch (_state.sec) {
+    case SEC_NONE:
+    case SEC_OPEN:
+    case SEC_WEP:
+        cmdWAUTH(_state.sec);
+        if (_state.sec != SEC_NONE) {
+            cmdWWEP(1, _state.pass);
+            wait_ms(100);
+        }
+        r = cmdWA(_state.ssid);
+        break;
+    default:
+        DBG("Can't use security\r\n");
+        break;
+    }
+
+    if (!r) {
+        // connected
+        _state.associated = true;
+    }
+    return r;
+}
+
+int GSwifi::limitedap ()
+{
+    bool r = -1;
+
+    _state.wm = WM_LIMITEDAP;
+    _state.initialized = true;
+    if (!strlen(_state.name)) {
+        strncpy(_state.name, CFG_DNSNAME, sizeof(_state.name));
+    }
+    clearFlags();
+    _state.mode = MODE_COMMAND;
+    sendCommand(NULL, RES_NULL, 0);
+    if (cmdE(false)) return -1;
+    if (_flow) {
+        cmdR(true);
+    }
+    if (cmdNMAC()) return -1;
+    cmdBDATA(true);
+    cmdWREGDOMAIN(CFG_WREGDOMAIN);
+    cmdWM(2); // limitedap
+    wait_ms(100);
+
+    cmdNDHCP(false);
+    if (! _state.dhcp) {
+        cmdNSET(_state.ip, _state.netmask, _state.ip);
+        cmdDNSSET(_state.ip);
+    }
+    cmdDHCPSRVR(true);
+    cmdDNS(true, _state.name);
+
+    switch (_state.sec) {
+    case SEC_NONE:
+    case SEC_OPEN:
+    case SEC_WEP:
+        cmdWAUTH(_state.sec);
+        if (_state.sec != SEC_NONE) {
+            cmdWWEP(1, _state.pass);
+            wait_ms(100);
+        }
+        r = cmdWA(_state.ssid);
+        break;
+    default:
+        DBG("Can't use security\r\n");
+        break;
+    }
+
+    if (!r) {
+        // connected
+        _state.associated = true;
+    }
+    return r;
+}
+
+int GSwifi::dissociate()
+{
+    int i;
+
+    // if already disconnected, return
+    if (!_state.associated)
+        return 0;
+
+#ifdef CFG_ENABLE_RTOS
+    if (_threadPoll) {
+        _threadPoll->terminate();
+        delete _threadPoll;
+    }
+#endif
+    for (i = 0; i < 16; i ++) {
+        if (_con[i].buf) {
+            _con[i].buf->flush();
+        }
+    }
+    cmdNCLOSEALL();
+    cmdWD();
+    cmdNDHCP(false);
+    wait_ms(100);
+
+    _state.associated = false;
+    return 0;
+
+}
+
+bool GSwifi::isAssociated()
+{
+    return _state.associated;
+}
+
+void GSwifi::poll () {
+#ifndef CFG_ENABLE_RTOS
+    static int t = 0;
+    static Timer timer;
+
+    if (_state.wm == WM_INFRASTRUCTURE && (! isAssociated()) && _state.ssid) {
+      if (t == 0 || timer.read() > CFG_RECONNECT) {
+        // Wi-Fi re-associate
+        if (_state.initialized) {
+            if (cmdWA(_state.ssid)) {
+                timer.reset();
+                timer.start();
+                t = 1;
+            } else {
+                _state.associated = true;
+                timer.stop();
+                t = 0;
+            }
+        } else {
+            if (join()) {
+                timer.reset();
+                timer.start();
+                t = 1;
+            } else {
+                timer.stop();
+                t = 0;
+            }
+        }
+      }
+    }
+#else
+    if (_state.wm == WM_INFRASTRUCTURE && (! isAssociated()) && _state.ssid) {
+        // Wi-Fi re-associate
+        if (_state.initialized) {
+            if (!cmdWA(_state.ssid)) {
+                _state.associated = true;
+            }
+        } else {
+            join();
+        }
+    }
+#endif
+
+    for (int i = 0; i < 16; i ++) {
+        if (isConnected(i) && _con[i].received && _con[i].buf)
+          if (_con[i].func != NULL && !_con[i].buf->isEmpty()) {
+            _con[i].func(i);
+            if (_con[i].buf->isEmpty()) {
+                _con[i].received = false;
+            }
+        }
+    }
+
+#ifdef CFG_ENABLE_HTTPD
+    httpdPoll();
+#endif
+}
+
+#ifdef CFG_ENABLE_RTOS
+void GSwifi::threadPoll (void const *args) {
+    GSwifi * _wifi = GSwifi::getInstance();
+    if (_wifi == NULL)
+        error("Socket constructor error: no wifly instance available!\r\n");
+
+    INFO("threadPoll");
+    for (;;) {
+        Thread::signal_wait(1);
+        Thread::wait(1000);
+        INFO("disassociated");
+        while (!_wifi->isAssociated()){
+            _wifi->poll();
+            Thread::wait(CFG_RECONNECT * 1000);
+        }
+    }
+}
+#endif
+
+GSwifi::Status GSwifi::getStatus () {
+    return _state.status;
+}
+
+int GSwifi::setMacAddress (const char *mac) {
+    if (cmdNMAC(mac)) return -1;
+    strncpy(_state.mac, mac, sizeof(_state.mac));
+    return 0;
+}
+
+int GSwifi::getMacAddress (char *mac) {
+    if (cmdNMAC()) return -1;
+    strcpy(mac, _state.mac);
+    return 0;
+}
+
+int GSwifi::setAddress (const char *name) {
+    _state.dhcp = true;
+    strncpy(_state.name, name, sizeof(_state.name));
+    return 0;
+}
+
+int GSwifi::setAddress (const char *ip, const char *netmask, const char *gateway, const char *name) {
+    _state.dhcp = false;
+    strncpy(_state.ip, ip, sizeof(_state.ip));
+    strncpy(_state.netmask, netmask, sizeof(_state.netmask));
+    strncpy(_state.gateway, gateway, sizeof(_state.gateway));
+    strncpy(_state.name, name, sizeof(_state.name));
+    return 0;
+}
+
+int GSwifi::getAddress (char *ip, char *netmask, char *gateway) {
+    strcpy(ip, _state.ip);
+    strcpy(netmask, _state.netmask);
+    strcpy(gateway, _state.gateway);
+    return 0;
+}
+
+int GSwifi::setSsid (Security sec, const char *ssid, const char *phrase) {
+    int i;
+
+    _state.sec = sec;
+
+    // change all ' ' in '$' in the ssid and the passphrase
+    strncpy(_state.ssid, ssid, sizeof(_state.ssid));
+    for (i = 0; i < strlen(_state.ssid); i++) {
+        if (_state.ssid[i] == ' ')
+            _state.ssid[i] = '$';
+    }
+
+    if (sec == SEC_WEP) {
+        if (strlen(phrase) == 5 || strlen(phrase) == 13) {
+            for (i = 0; i < strlen(phrase); i++) {
+                _state.pass[i * 2] = '0' + ((phrase[i] >> 4) & 0x0f);
+                _state.pass[i * 2 + 1] = '0' + (phrase[i + 1] & 0x0f);
+            }
+        } else {
+            strncpy(_state.pass, phrase, strlen(phrase));
+        }
+    } else {
+        strncpy(_state.pass, phrase, sizeof(_state.pass));
+    }
+    for (i = 0; i < strlen(_state.pass); i++) {
+        if (_state.pass[i] == ' ')
+            _state.pass[i] = '$';
+    }
+    return 0;
+}
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,678 @@
+/* Copyright (C) 2013 gsfan, 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
+ *
+ * GainSpan GS1011, Wi-Fi module
+ *
+ *   http://www.gainspan.com/modules
+ */
+/** @file
+ * @brief Gainspan wi-fi module library for mbed
+ * GS1011MIC, GS1011MIP, GainSpan WiFi Breakout, etc.
+ */
+
+#ifndef GSwifi_H
+#define GSwifi_H
+
+#include "GSwifi_conf.h"
+
+#include "mbed.h"
+#include "RawSerial.h"
+#include "CBuffer.h"
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef CFG_ENABLE_RTOS
+#include "rtos.h"
+#endif
+
+//Debug is disabled by default
+#if defined(DEBUG) and (!defined(TARGET_LPC11U24))
+#define DBG(x, ...) std::printf("[DBG]" x "\r\n", ##__VA_ARGS__);
+#define WARN(x, ...) std::printf("[WARN]" x "\r\n", ##__VA_ARGS__);
+#define ERR(x, ...) std::printf("[ERR]" x "\r\n", ##__VA_ARGS__);
+#define INFO(x, ...) std::printf("[INFO]" x "\r\n", ##__VA_ARGS__);
+#else
+#define DBG(x, ...)
+#define WARN(x, ...)
+#define ERR(x, ...)
+#define INFO(x, ...)
+#endif
+
+
+/** GSwifi class
+ */
+class GSwifi
+{
+
+public:
+
+    /** Wi-Fi mode
+     */
+    enum WiFiMode {
+        WM_INFRASTRUCTURE,
+        WM_ADHOCK,
+        WM_LIMITEDAP,
+    };
+
+    /** Wi-Fi security
+     */
+    enum Security {
+        SEC_AUTO = 0,
+        SEC_NONE = 0,
+        SEC_OPEN = 1,
+        SEC_WEP = 2,
+        SEC_WPA_PSK = 4,
+        SEC_WPA2_PSK = 8,
+        SEC_WPA_ENT = 16,
+        SEC_WPA2_ENT = 32,
+        SEC_WPS_BUTTON = 64,
+        SEC_WPS_PIN,
+    };
+
+    /** TCP/IP protocol
+     */
+    enum Protocol {
+        PROTO_UDP = 0,
+        PROTO_TCP = 1,
+        PROTO_HTTPGET,
+        PROTO_HTTPPOST,
+        PROTO_HTTPD,
+    };
+
+    /** Client/Server
+     */
+    enum Type {
+        TYPE_CLIENT = 0,
+        TYPE_SERVER = 1,
+    };
+
+    enum Response {
+        RES_NULL,
+        RES_CONNECT,
+        RES_WPAPSK,
+        RES_WPS,
+        RES_MACADDRESS,
+        RES_DHCP,
+        RES_DNSLOOKUP,
+        RES_HTTP,
+        RES_RSSI,
+        RES_TIME,
+        RES_STATUS,
+    };
+
+    enum Mode {
+        MODE_COMMAND,
+        MODE_CMDRESP,
+        MODE_ESCAPE,
+        MODE_DATA_RX,
+        MODE_DATA_RX_BULK,
+        MODE_DATA_RXUDP,
+        MODE_DATA_RXUDP_BULK,
+        MODE_DATA_RXHTTP,
+        MODE_DATA_RAW,
+    };
+
+    enum Status {
+        STAT_NONE,
+        STAT_READY,
+        STAT_STANDBY,
+        STAT_WAKEUP,
+        STAT_DEEPSLEEP,
+    };
+
+    // ----- GSwifi.cpp -----
+    /** 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 cts mbed pin to use for cts line of Serial interface
+     * \param rts mbed pin to use for rts line of Serial interface
+     * \param reset reset pin of the wifi module
+     * \param alarm alarm pin of the wifi module (default NULL)
+     * \param baud baud rate of Serial interface (default 9600)
+     */
+    GSwifi (PinName tx, PinName rx, PinName cts, PinName rts, PinName reset, PinName alarm = NC, int baud = 9600);
+
+    /** Connect the wifi module to the ssid contained in the constructor.
+     * @param sec Security type (NONE, WEP_128 or WPA)
+     * @param ssid ssid of the network
+     * @param phrase WEP or WPA key
+     * @return 0 if connected, -1 otherwise
+     */
+    int join ();
+
+    /** Connect the wifi module to the adhock in the constructor.
+     * @param sec Security type (NONE, WEP_128 or WPA)
+     * @param ssid ssid of the network
+     * @param phrase WEP or WPA key
+     * @return 0 if connected, -1 otherwise
+     */
+    int adhock ();
+
+    /** Connect the wifi module to the limited AP in the constructor.
+     * @param sec Security type (NONE, WEP_128 or WPA)
+     * @param ssid ssid of the network
+     * @param phrase WEP or WPA key
+     * @return 0 if connected, -1 otherwise
+     */
+    int limitedap ();
+
+    /** Disconnect the wifi module from the access point
+     * @returns 0 if successful
+     */
+    int dissociate ();
+    int disconnect () {
+        return dissociate();
+    }
+    
+    /** Check if a Wi-Fi link is active
+     * @returns true if successful
+     */
+    bool isAssociated();
+
+    /** polling if not use rtos
+     */
+    void poll ();
+
+    /** get Wi-Fi modue status
+     * @return Status
+     */
+    Status getStatus ();
+
+    /** set MAC address
+     */
+    int setMacAddress (const char *mac);
+    /** get MAC address
+     */
+    int getMacAddress (char *mac);
+
+    /** use DHCP
+     */
+    int setAddress (const char *name = NULL);
+    /** use static IP address
+     * @param ip my ip address (dhcp start address)
+     * @param netmask subnet mask
+     * @param gateway default gateway
+     * @param dns my host name (default NULL)
+     */
+    int setAddress (const char *ip, const char *netmask, const char *gateway, const char *name = NULL);
+    /** get IP address
+     */
+    int getAddress (char *ip, char *netmask, char *gateway);
+
+    /** set Wi-Fi security parameter
+     * @param sec Security
+     * @param ssid SSID
+     * @param pass pass phrase
+     */
+    int setSsid (Security sec, const char *ssid, const char *phrase);
+
+    static GSwifi * getInstance() {
+        return _inst;
+    };
+
+    // ----- GSwifi_util.cpp -----
+    int setRegion (int reg);
+
+    /** get RSSI
+     * @return RSSI (dBm)
+     */
+    int getRssi ();
+
+    /** power save mode
+     * @param active rx radio 0:switched off, 1:always on
+     * @param save power save 0:disable, 1:enable
+     */
+    int powerSave (int active, int save);
+
+    /** RF power
+     * @param power 0(high)-7(low)
+     */
+    int setRfPower (int power);
+
+    /** set system time
+     * @param time date time (UTC)
+     */
+    int setTime (time_t time);
+
+    /** get system time
+     * @return date time (UTC)
+     */
+    time_t getTime ();
+
+    /** set NTP server
+     * @param host SNTP server
+     * @param sec time sync interval, 0:one time
+     */
+    int ntpdate (char *host, int sec = 0);
+
+    /** GPIO output
+     * @param port 10,11,30,31
+     * @param out 0:set(high), 1:reset(low)
+     */
+    int setGpio (int port, int out);
+
+    /** Web server
+     */
+    int provisioning (char *user, char *pass);
+
+    /** standby mode
+     * @param msec wakeup after
+     * wakeup after msec or alarm1/2
+     * core off, save to RTC ram
+     */
+    int standby (int msec);
+
+    /** deep sleep mode
+     */
+    int deepSleep ();
+
+    /** restore standby or deep sleep
+     */
+    int wakeup ();
+
+    // ----- GSwifi_sock.cpp -----
+    /** Resolv hostname
+     * @param name hostname
+     * @param ip resolved ip address
+     */
+    int getHostByName(const char * host, char * ip);
+
+    /** TCP/UDP client
+     * @return CID, -1:failure
+     */
+    int open (Protocol proto, const char *ip, int port, int src = 0, void(*func)(int) = NULL);
+
+    /** TCP/UDP server
+     * @return CID, -1:failure
+     */
+    int listen (Protocol proto, int port, void(*func)(int) = NULL);
+
+    /** close client/server
+     */
+    int close (int cid);
+
+    /** send data tcp(s/c), udp(c)
+     */
+    int send (int cid, const char *buf, int len);
+
+    /** send data udp(s)
+     */
+    int sendto (int cid, const char *buf, int len, const char *ip, int port);
+
+    /** recv data tcp(s/c), udp(c)
+     * @return length
+     */
+    int recv (int cid, char *buf, int len);
+
+    /** recv data udp(s)
+     * @return length
+     */
+    int recvfrom (int cid, char *buf, int len, char *ip, int *port);
+
+    /** readable recv data
+     */
+    int readable (int cid);
+
+    /** tcp/udp connected
+     */
+    bool isConnected (int cid);
+
+    int accept (int cid);
+    int getRemote(int cid, char **ip, int *port);
+
+    // ----- GSwifi_http.cpp -----
+    /** http request (GET method)
+     */
+    int httpGet (const char *host, int port, const char *uri, bool ssl = false, const char *user = NULL, const char *pwd = NULL, void(*func)(int) = NULL);
+    int httpGet (const char *host, int port, const char *uri, void(*func)(int) = NULL) {
+        return httpGet(host, port, uri, false, NULL, NULL, func);
+    }
+    /** http request (POST method)
+     */
+    int httpPost (const char *host, int port, const char *uri, const char *body, bool ssl = false, const char *user = NULL, const char *pwd = NULL, void(*func)(int) = NULL);
+    int httpPost (const char *host, int port, const char *uri, const char *body, void(*func)(int) = NULL) {
+        return httpPost(host, port, uri, body, false, NULL, NULL, func);
+    }
+
+    int base64encode (const char *input, int length, char *output, int len);
+    int urlencode (const char *str, char *buf, int len);
+    int urldecode (const char *str, char *buf, int len);
+
+#ifdef CFG_ENABLE_HTTPD
+    // ----- GSwifi_httpd.cpp -----
+    /** start http server
+     * @param port
+     */
+    int httpd (int port = 80);
+
+    // ----- GSwifi_httpd_util.cpp -----
+    /** attach uri to dirctory handler
+     */
+    void httpdError (int cid, int err);
+    /** attach uri to dirctory handler
+     */
+    int httpdAttach (const char *uri, const char *dir);
+    /** attach uri to cgi handler
+     */
+    int httpdAttach (const char *uri, void (*funcCgi)(int));
+#endif
+
+#ifdef CFG_ENABLE_WEBSOCKET
+    // ----- GSwifi_httpd_ws.cpp -----
+    /** websocket request (Upgrade method)
+     * @return CID, -1:failure
+     */
+    int wsOpen (const char *host, int port, const char *uri, const char *user = NULL, const char *pwd = NULL);
+    /** send websocket data
+     */
+    int wsSend (int cid, const char *buf, int len, const char *mask = NULL);
+#endif
+
+#ifdef CFG_ENABLE_SMTP
+    // ----- GSwifi_smtp.cpp -----
+    /** send mail (smtp)
+     * @param host SMTP server
+     * @param port SMTP port (25 or 587 or etc.)
+     * @param to To address
+     * @param from From address
+     * @param subject Subject
+     * @param mesg Message
+     * @param user username (SMTP Auth)
+     * @param pwd password (SMTP Auth)
+     * @retval 0 success
+     * @retval -1 failure
+     */
+    int mail (const char *host, int port, const char *to, const char *from, const char *subject, const char *mesg, const char *user = NULL, const char *pwd = NULL);
+#endif
+
+    // ----- GSwifi_msg.cpp -----
+
+    // ----- GSwifi_at.cpp -----
+    /** Send a command to the wifi module. Check if the module is in command mode. If not enter in command mode
+     * @param cmd string to be sent
+     * @param res need response
+     * @param timeout
+     * @returns 0 if successful
+     */
+    int sendCommand(const char * cmd, Response res = RES_NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT);
+
+    /** Send a command to the wifi module. Check if the module is in command mode. If not enter in command mode
+     * @param data string to be sent
+     * @param res need response
+     * @param timeout
+     * @param cmd 
+     * @returns 0 if successful
+     */
+    int sendData(const char * data, int len, int timeout = CFG_TIMEOUT, const char * cmd = NULL);
+
+
+protected:
+
+    static GSwifi * _inst;
+#ifdef CFG_ENABLE_RTOS
+    Thread *_threadPoll;
+    Mutex _mutexUart;
+#endif
+
+//    Serial _gs;
+    RawSerial _gs;
+    int _baud;
+    DigitalIn *_cts;
+    DigitalOut *_rts;
+    int _flow;
+#if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC4088)
+    LPC_UART1_TypeDef *_uart;
+#elif defined(TARGET_LPC11U24)
+    LPC_USART_Type *_uart;
+#elif defined(TARGET_LPC11XX)
+    LPC_UART_TypeDef *_uart;
+#endif
+    DigitalInOut _reset;
+    DigitalInOut *_alarm;
+
+    struct STATE {
+        WiFiMode wm;
+        Security sec;
+        char ssid[35];
+        char pass[66];
+        char ip[16];
+        char netmask[16];
+        char gateway[16];
+        char nameserver[16];
+        char mac[18];
+        char resolv[16];
+        char name[32];
+        int rssi;
+        bool dhcp;
+        time_t time;
+
+        bool initialized;
+        bool associated;
+        volatile Mode mode;
+        volatile Status status;
+        bool escape;
+        volatile bool ok, failure;
+        volatile Response res;
+        int cid;
+        int n;
+        CircBuffer<char> *buf;
+    } _state;
+
+    struct CONNECTION {
+        Protocol protocol;
+        Type type;
+        bool connected;
+        char ip[16];
+        int port;
+        CircBuffer<char> *buf;
+        volatile bool received;
+        volatile int parent;
+        volatile bool accept;
+        void(*func)(int);
+    } _con[16];
+
+#ifdef CFG_ENABLE_HTTPD
+    enum HttpdMode {
+        HTTPDMODE_REQUEST,
+        HTTPDMODE_REQUEST_STR,
+        HTTPDMODE_HEADER,
+        HTTPDMODE_BODY,
+        HTTPDMODE_ENTER,
+        HTTPDMODE_ERROR,
+        HTTPDMODE_WEBSOCKET,
+        HTTPDMODE_WEBSOCKET_MASK,
+        HTTPDMODE_WEBSOCKET_BODY,
+        HTTPDMODE_WEBSOCKET_ENTER,
+    };
+
+    enum HttpdReq {
+        REQ_HTTPGET,
+        REQ_HTTPPOST,
+    };
+
+    struct HTTPD {
+        HttpdMode mode;
+        HttpdReq req;
+        CircBuffer <char>*buf;
+        char *uri;
+        char *filename;
+        char *querystring;
+        int enter;
+        int length;
+        int n;
+        int keepalive;
+#ifdef CFG_ENABLE_WEBSOCKET
+        int websocket;
+        char *websocket_key;
+        int websocket_opcode;
+        int websocket_flg;
+        char websocket_mask[4];
+        int websocket_payload;
+#endif
+    } _httpd[16];
+
+    struct HTTPD_HANDLER {
+        char *uri;
+        char *dir;
+        void (*func)(int);
+    } _httpd_handler[CFG_HTTPD_HANDLER_NUM];
+
+    int _httpd_cid;
+    int _handler_count;
+#endif // CFG_ENABLE_HTTPD
+
+
+    // ----- GSwifi.cpp -----
+#ifdef CFG_ENABLE_RTOS
+    static void threadPoll (void const *args);
+#endif
+
+    // ----- GSwifi_sock.cpp -----
+    void initCon (int cid, bool connected);
+
+    // ----- GSwifi_util.cpp -----
+    int x2i (char c);
+    char i2x (int i);
+    int from_hex (int ch);
+    int to_hex (int code);
+
+    // ----- GSwifi_http.cpp -----
+
+#ifdef CFG_ENABLE_HTTPD
+    // ----- GSwifi_httpd.cpp -----
+    void httpdRecvData (int cid, char c);
+    int httpdParseRequest (int cid);
+    void httpdPoll ();
+    int httpdParseHeader (int cid);
+    void reqContentLength (int cid, const char *buf);
+    void reqConnection (int cid, const char *buf);
+    void reqUpgrade (int cid, const char *buf);
+    void reqWebSocketVersion (int cid, const char *buf);
+    void reqWebSocketKey (int cid, const char *buf);
+
+    // ----- GSwifi_httpd_util.cpp -----
+    int httpdFile (int cid, char *dir);
+    int httpdGetHandler (const char *uri);
+    char *mimetype (char *file);
+    int strnicmp (const char *p1, const char *p2, int n);
+#endif
+
+#ifdef CFG_ENABLE_WEBSOCKET
+    // ----- GSwifi_httpd_ws.cpp -----
+    int wsWait (int cid, int code);
+#ifdef CFG_ENABLE_HTTPD
+    void wsRecvData (int cid, char c);
+    int wsParseRequest (int cid);
+    int wsAccept (int cid);
+#endif
+#endif
+
+#ifdef CFG_ENABLE_SMTP
+    // ----- GSwifi_smtp.cpp -----
+    int smtpWait (int cid, int code);
+#endif
+
+    // ----- GSwifi_msg.cpp -----
+    void recvData (char c);
+    int parseMessage ();
+    void msgOk (const char*);
+    void msgError (const char*);
+    void msgConnect (const char*);
+    void msgDisconnect (const char*);
+    void msgDisassociated (const char*);
+    void msgReset (const char*);
+    void msgOutofStandby (const char*);
+    void msgOutofDeepsleep (const char*);
+    void resNormal (const char*);
+    void resConnect (const char*);
+    void resWpapsk (const char *buf);
+    void resWps (const char*);
+    void resMacAddress (const char*);
+    void resIp (const char*);
+    void resLookup (const char*);
+    void resRssi (const char*);
+    void resTime (const char*);
+    void resChannel (const char*);
+    void resStatus (const char*);
+    void resHttp (const char *buf);
+
+    // ----- GSwifi_at.cpp -----
+    void clearFlags ();
+    int cmdAT ();
+    int cmdE (bool n);
+    int cmdR (bool n);
+    int cmdNMAC (const char *s = NULL);
+    int cmdWREGDOMAIN (int n = CFG_WREGDOMAIN);
+    int cmdWS ();
+    int cmdWM (int n);
+    int cmdWA (const char *s);
+    int cmdWD ();
+    int cmdWWPS (bool n, const char *p = NULL);
+    int cmdNSTAT ();
+    int cmdWSTATUS ();
+    int cmdWRSSI ();
+    int cmdWAUTH (int n);
+    int cmdWWEP (int n, const char *s);
+    int cmdWPAPSK (const char *s, const char *p);
+    int cmdWRXACTIVE (bool n);
+    int cmdWRXPS (bool n);
+    int cmdWP (int n);
+    int cmdNDHCP (bool n, const char *s = NULL, int m = CFG_TIMEOUT);
+    int cmdDHCPSRVR (bool n);
+    int cmdNSET (const char *s, const char *t, const char *u);
+    int cmdDNS (bool n, const char *s);
+    int cmdDNSLOOKUP (const char *s);
+    int cmdDNSSET (const char *s);
+    int cmdSTORENWCONN ();
+    int cmdRESTORENWCONN ();
+    int cmdBDATA (bool n);
+    int cmdNCTCP (const char *s, int n);
+    int cmdNCUDP (const char *s, int n, int m = 0);
+    int cmdNSTCP (int n);
+    int cmdNSUDP (int n);
+    int cmdNCLOSE (int n);
+    int cmdNCLOSEALL ();
+    int cmdHTTPCONF (int n, const char *s);
+    int cmdHTTPCONFDEL (int n);
+    int cmdHTTPOPEN (const char *s, int n = 80, bool m = false);
+    int cmdHTTPSEND (int n, bool m, const char *s, int t = 0);
+    int cmdHTTPCLOSE (int n);
+    int cmdPSDPSLEEP (int n = 0);
+    int cmdPSSTBY (int n, int m = 0);
+    int cmdWEBPROV (const char *s, const char *p);
+    int cmdSETTIME (const char *s, const char *t);
+    int cmdGETTIME ();
+    int cmdNTIMESYNC (bool n, const char *s, int m = 0);
+    int cmdDGPIO (int n, int m);
+
+    // ----- GSwifi_hal.cpp -----
+    void setReset (bool flg);
+    void setAlarm (bool flg);
+    void isrUart ();
+    int getUart ();
+    void putUart (char c);
+    void setRts (bool flg);
+    int lockUart (int ms);
+    void unlockUart ();
+    void initUart (PinName cts, PinName rts, PinName alarm, int baud);
+
+};
+
+#endif
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_at.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,403 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+void GSwifi::clearFlags () {
+    _state.ok = false;
+    _state.failure = false;
+    _state.res = RES_NULL;
+    _state.n = 0;
+}
+
+int GSwifi::sendCommand(const char * cmd, Response res, int timeout) {
+    int i;
+    Timer t;
+
+    if (lockUart(timeout)) return -1;
+
+    clearFlags();
+    _state.res = res;
+    for (i = 0; i < strlen(cmd); i ++) {
+        putUart(cmd[i]);
+    }
+    putUart('\r');
+    putUart('\n');
+    unlockUart();
+    INFO("command: '%s'\r\n", cmd);
+
+    if (timeout) {
+        t.start();
+        for (;;) {
+            if (_state.ok && _state.res == RES_NULL) break;
+            if (_state.failure || t.read_ms() > timeout) {
+                WARN("failure or timeout\r\n");
+                _state.res = RES_NULL;
+                return -1;
+            }
+        }
+        t.stop();
+    }
+    INFO("ok\r\n");
+    _state.res = RES_NULL;
+
+    return 0;
+}
+
+int GSwifi::sendData(const char * data, int len, int timeout, const char * cmd) {
+    int i;
+    Timer t;
+
+    if (lockUart(timeout)) return -1;
+
+    clearFlags();
+    for (i = 0; i < strlen(cmd); i ++) {
+        putUart(cmd[i]);
+    }
+    for (i = 0; i < len; i ++) {
+        putUart(data[i]);
+    }
+    unlockUart();
+    INFO("data: '%s' %d\r\n", cmd, len);
+
+    if (timeout) {
+        t.start();
+        for (;;) {
+            if (_state.ok) break;
+            if (_state.failure || t.read_ms() > timeout) {
+                WARN("failure or timeout\r\n");
+                return -1;
+            }
+        }
+        t.stop();
+    }
+
+    return i;
+}
+
+
+int GSwifi::cmdAT () {
+    return sendCommand("AT");
+}
+
+int GSwifi::cmdE (bool n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "ATE%d", n ? 1 : 0);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdR (bool n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT&R%d", n ? 1 : 0);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdNMAC (const char *s) {
+    int r;
+    char cmd[CFG_CMD_SIZE];
+    const char xmac[] = "00:1D:C9:01:99:99";
+    if (s) {
+        sprintf(cmd, "AT+NMAC2=%s", s);
+        r = sendCommand(cmd);
+    } else {
+        sprintf(cmd, "AT+NMAC=?");
+        r = sendCommand(cmd, RES_MACADDRESS);
+        if (!r && strncmp(_state.mac, xmac, 17) == 0) {
+            r = -1;
+        }
+    }
+    return r;
+}
+
+int GSwifi::cmdWREGDOMAIN (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WREGDOMAIN=%d", n);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdWS () {
+    return sendCommand("AT+WS");
+}
+
+int GSwifi::cmdWM (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WM=%d", n);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdWA (const char *s) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WA=%s", s);
+    return sendCommand(cmd, RES_DHCP, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdWD () {
+    return sendCommand("AT+WD");
+}
+
+int GSwifi::cmdWWPS (bool n, const char *p) {
+    char cmd[CFG_CMD_SIZE];
+    if (p) {
+        sprintf(cmd, "AT+WWPS=2,%s", p);
+    } else {
+        sprintf(cmd, "AT+WWPS=%d", n ? 1 : 0);
+    }
+    return sendCommand(cmd, RES_WPS, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdNSTAT () {
+    return sendCommand("AT+NSTAT=?");
+}
+
+int GSwifi::cmdWSTATUS () {
+    return sendCommand("AT+WSTATUS", RES_STATUS);
+}
+
+int GSwifi::cmdWRSSI () {
+    return sendCommand("AT+WRSSI=?", RES_RSSI);
+}
+
+int GSwifi::cmdWAUTH (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WAUTH=%d", n);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdWWEP (int n, const char *s) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WWEP%d=%s", n, s);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdWPAPSK (const char *s, const char *p) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WPAPSK=%s,%s", s, p);
+    return sendCommand(cmd, RES_WPAPSK, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdWRXACTIVE (bool n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WRXACTIVE=%d", n ? 1 : 0);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdWRXPS (bool n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WRXPS=%d", n ? 1 : 0);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdWP (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WP=%d", n);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdNDHCP (bool n, const char *s, int m) {
+    char cmd[CFG_CMD_SIZE];
+    if (n) {
+        if (s) {
+            sprintf(cmd, "AT+NDHCP=1,%s", s);
+        } else {
+            sprintf(cmd, "AT+NDHCP=1");
+        }
+        return sendCommand(cmd, RES_DHCP, m);
+    } else {
+        return sendCommand("AT+NDHCP=0");
+    }
+}
+
+int GSwifi::cmdDHCPSRVR (bool n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+DHCPSRVR=%d", n ? 1 : 0);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdNSET (const char *s, const char *t, const char *u) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+NSET=%s,%s,%s", s, t, u);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdDNS (bool n, const char *s) {
+    char cmd[CFG_CMD_SIZE];
+    if (n) {
+        if (s) {
+            sprintf(cmd, "AT+DNS=1,%s", s);
+        } else {
+            sprintf(cmd, "AT+DNS=1," CFG_DNSNAME);
+        }
+    } else {
+        sprintf(cmd, "AT+DNS=0");
+    }
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdDNSLOOKUP (const char *s) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+DNSLOOKUP=%s", s);
+    return sendCommand(cmd, RES_DNSLOOKUP, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdDNSSET (const char *s) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+DNSSET=%s", s);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdSTORENWCONN () {
+    return sendCommand("AT+STORENWCONN");
+}
+
+int GSwifi::cmdRESTORENWCONN () {
+    return sendCommand("AT+RESTORENWCONN");
+}
+
+int GSwifi::cmdBDATA (bool n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+BDATA=%d", n ? 1 : 0);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdNCTCP (const char *s, int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+NCTCP=%s,%d", s, n);
+    return sendCommand(cmd, RES_CONNECT, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdNCUDP (const char *s, int n, int m) {
+    char cmd[CFG_CMD_SIZE];
+    if (m) {
+        sprintf(cmd, "AT+NCUDP=%s,%d,%d", s, n, m);
+    } else {
+        sprintf(cmd, "AT+NCUDP=%s,%d", s, n);
+    }
+    return sendCommand(cmd, RES_CONNECT, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdNSTCP (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+NSTCP=%d", n);
+    return sendCommand(cmd, RES_CONNECT);
+}
+
+int GSwifi::cmdNSUDP (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+NSUDP=%d", n);
+    return sendCommand(cmd, RES_CONNECT);
+}
+
+int GSwifi::cmdNCLOSE (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+NCLOSE=%d", n);
+    return sendCommand(cmd, RES_NULL, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdNCLOSEALL () {
+    return sendCommand("AT+NCLOSEALL", RES_NULL, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdHTTPCONF (int n, const char *s) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+HTTPCONF=%d,%s", n, s);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdHTTPCONFDEL (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+HTTPCONFDEL=%d", n);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdHTTPOPEN (const char *s, int n, bool m) {
+    char cmd[CFG_CMD_SIZE];
+    if (m) {
+        sprintf(cmd, "AT+HTTPOPEN=%s,%d,1", s, n);
+    } else {
+        sprintf(cmd, "AT+HTTPOPEN=%s,%d", s, n);
+    }
+    return sendCommand(cmd, RES_HTTP, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdHTTPSEND (int n, bool m, const char *s, int t) {
+    char cmd[CFG_CMD_SIZE];
+    if (m) {
+        sprintf(cmd, "AT+HTTPSEND=%d,3,%d,%s,%d", n, CFG_TIMEOUT / 1000, s, t);
+    } else {
+        sprintf(cmd, "AT+HTTPSEND=%d,1,%d,%s", n, CFG_TIMEOUT / 1000, s);
+    }
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdHTTPCLOSE (int n) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+HTTPCLOSE=%d", n);
+    return sendCommand(cmd, RES_NULL, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdPSDPSLEEP (int n) {
+    char cmd[CFG_CMD_SIZE];
+    if (n) {
+        sprintf(cmd, "AT+PSDPSLEEP=%d", n);
+    } else {
+        sprintf(cmd, "AT+PSDPSLEEP");
+    }
+    return sendCommand(cmd, RES_NULL, 0);
+}
+
+int GSwifi::cmdPSSTBY (int n, int m) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+PSSTBY=%d,0,%d,%d", n, m, m);
+    return sendCommand(cmd, RES_NULL, 0);
+}
+
+int GSwifi::cmdWEBPROV (const char *s, const char *p) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+WEBPROV=%s,%s", s, p);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdSETTIME (const char *s, const char *t) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+SETTIME=%s,%s", s, t);
+    return sendCommand(cmd);
+}
+
+int GSwifi::cmdGETTIME () {
+    return sendCommand("AT+GETTIME=?", RES_TIME);
+}
+
+int GSwifi::cmdNTIMESYNC (bool n, const char *s, int m) {
+    char cmd[CFG_CMD_SIZE];
+    if (n) {
+        if (m) {
+            sprintf(cmd, "AT+NTIMESYNC=1,%s,%d,1,%d", s, CFG_TIMEOUT / 1000, m);
+        } else {
+            sprintf(cmd, "AT+NTIMESYNC=1,%s,%d,0", s, CFG_TIMEOUT / 1000);
+        }
+    } else {
+        sprintf(cmd, "AT+NTIMESYNC=0");
+    }
+    return sendCommand(cmd, RES_NULL, CFG_TIMEOUT);
+}
+
+int GSwifi::cmdDGPIO (int n, int m) {
+    char cmd[CFG_CMD_SIZE];
+    sprintf(cmd, "AT+DGPIO=%d,%d", n, m);
+    return sendCommand(cmd);
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_conf.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,34 @@
+
+//#define DEBUG
+//#define DEBUG_DUMP
+
+//#define CFG_ENABLE_RTOS
+//#define CFG_ENABLE_HTTPD
+//#define CFG_ENABLE_WEBSOCKET
+//#define CFG_ENABLE_SMTP
+//#define CFG_UART_DIRECT
+
+#define CFG_UART_BAUD 9600
+#define CFG_WREGDOMAIN 2 // 0:FCC, 1:ETSI, 2:TELEC
+#define CFG_DHCPNAME "mbed-gswifi"
+#define CFG_DNSNAME "setup.local"
+#define CFG_TRYJOIN 3
+#define CFG_RECONNECT 30 // sec
+
+#define DEFAULT_WAIT_RESP_TIMEOUT 500
+#define CFG_TIMEOUT 30000 // ms
+
+#define CFG_CMD_SIZE 128
+
+#if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC176X)
+#define CFG_DATA_SIZE 1024
+#elif defined(TARGET_LPC11U24) || defined(TARGET_LPC1114) || defined(TARGET_LPC11XX)
+#define CFG_DATA_SIZE 256
+#elif defined(TARGET_LPC4088) || defined(TARGET_LPC408X)
+#define CFG_DATA_SIZE 4096
+#elif defined(TARGET_KL25Z)
+#define CFG_DATA_SIZE 512
+#endif
+
+#define CFG_HTTPD_HANDLER_NUM 10
+#define CFG_HTTPD_KEEPALIVE 10
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_hal.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,221 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+void GSwifi::setReset (bool flg) {
+    if (flg) {
+        // low
+        _reset.output();
+        _reset = 0;
+    } else {
+        // high z
+        _reset.input();
+        _reset.mode(PullNone);
+    }
+}
+
+void GSwifi::setAlarm (bool flg) {
+    if (_alarm == NULL) return;
+
+    if (flg) {
+        // low
+        _alarm->output(); // low
+        _alarm->write(0);
+    } else {
+        // high
+        _alarm->input(); // high
+        _alarm->mode(PullUp);
+    }
+}
+
+void GSwifi::isrUart () {
+    recvData(getUart());
+}
+
+int GSwifi::getUart () {
+#ifdef CFG_UART_DIRECT
+    return _uart->RBR;
+#else
+    return _gs.getc();
+#endif
+}
+
+void GSwifi::putUart (char c) {
+#ifdef CFG_UART_DIRECT
+    while(!(_uart->LSR & (1<<5)));
+    _uart->THR = c;
+#else
+    _gs.putc(c);
+#endif
+}
+
+void GSwifi::setRts (bool flg) {
+    if (flg) {
+        // low
+        if (_flow == 1) {
+#if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC11U24) || defined(TARGET_LPC4088)
+            _uart->MCR |= (1<<6); // RTSEN
+#endif
+        } else
+        if (_flow == 2) {
+            if (_rts) {
+                _rts->write(0); // low
+            }
+        }
+    } else {
+        // high
+        if (_flow == 1) {
+#if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC11U24) || defined(TARGET_LPC4088)
+            _uart->MCR &= ~(1<<6); // RTS off
+            _uart->MCR &= ~(1<<1);
+#endif
+        } else
+        if (_flow == 2) {
+            if (_rts) {
+                _rts->write(1); // high
+            }
+        }
+    }
+}
+
+int GSwifi::lockUart (int ms) {
+    Timer t;
+
+    if (_state.mode != MODE_COMMAND) {
+        t.start();
+        while (_state.mode != MODE_COMMAND) {
+            if (t.read_ms() >= ms) {
+                WARN("lock timeout (%d)\r\n", _state.mode);
+                return -1;
+            }
+        }
+    }
+
+#ifdef CFG_ENABLE_RTOS
+    if (_mutexUart.lock(ms) != osOK) return -1;
+#endif
+
+    if (_flow == 1) {
+#if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC11U24) || defined(TARGET_LPC4088)
+        if (!(_uart->MSR & (1<<4))) {
+            // CTS check
+            t.start();
+            while (!(_uart->MSR & (1<<4))) {
+                if (t.read_ms() >= ms) {
+                    DBG("cts timeout\r\n");
+                    return -1;
+                }
+            }
+        }
+#endif
+    } else
+    if (_flow == 2) {
+        if (_cts && _cts->read()) {
+            // CTS check
+            t.start();
+            while (_cts->read()) {
+                if (t.read_ms() >= ms) {
+                    DBG("cts timeout\r\n");
+                    return -1;
+                }
+            }
+        }
+    }
+
+    setRts(false);
+    return 0;
+}
+
+void GSwifi::unlockUart () {
+    setRts(true);
+#ifdef CFG_ENABLE_RTOS
+    _mutexUart.unlock();
+#endif
+}
+
+void GSwifi::initUart (PinName cts, PinName rts, PinName alarm, int baud) {
+
+    _baud = baud;
+    if (_baud) _gs.baud(_baud);
+    _gs.attach(this, &GSwifi::isrUart, Serial::RxIrq);
+
+    _cts = NULL;
+    _rts = NULL;
+    _flow = 0;
+#if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
+    _uart = LPC_UART1;
+    if (cts == p12) { // CTS input (P0_17)
+        _uart->MCR |= (1<<7); // CTSEN
+        LPC_PINCON->PINSEL1 &= ~(3 << 2);
+        LPC_PINCON->PINSEL1 |= (1 << 2); // UART CTS
+    } else
+    if (cts != NC) {
+        _cts = new DigitalIn(cts);
+    }
+    if (rts == P0_22) { // RTS output (P0_22)
+        _uart->MCR |= (1<<6); // RTSEN
+        LPC_PINCON->PINSEL1 &= ~(3 << 12);
+        LPC_PINCON->PINSEL1 |= (1 << 12); // UART RTS
+        _flow = 1;
+    } else
+    if (rts != NC) {
+        _rts = new DigitalOut(rts);
+        _flow = 2;
+    }
+#elif defined(TARGET_LPC11U24)
+    _uart = LPC_USART;
+    if (cts == p21) { // CTS input (P0_7)
+        _uart->MCR |= (1<<7); // CTSEN
+        LPC_IOCON->PIO0_7 &= ~0x07;
+        LPC_IOCON->PIO0_7 |= 0x01; // UART CTS
+    } else
+    if (cts != NC) {
+        _cts = new DigitalIn(cts);
+    }
+    if (rts == p22) { // RTS output (P0_17)
+        _uart->MCR |= (1<<6); // RTSEN
+        LPC_IOCON->PIO0_17 &= ~0x07;
+        LPC_IOCON->PIO0_17 |= 0x01; // UART RTS
+        _flow = 1;
+    } else
+    if (rts != NC) {
+        _rts = new DigitalOut(rts);
+        _flow = 2;
+    }
+#elif defined(TARGET_LPC4088)
+    _uart = (LPC_UART_TypeDef*)LPC_UART2;
+    if (cts != NC && rts != NC) {
+        _cts = new DigitalIn(cts);
+        _rts = new DigitalOut(rts);
+        _flow = 2;
+    }
+#else
+    if (cts != NC && rts != NC) {
+        _cts = new DigitalIn(cts);
+        _rts = new DigitalOut(rts);
+        _flow = 2;
+    }
+#endif
+
+    if (alarm != NC) {
+        _alarm = new DigitalInOut(alarm);
+    } else {
+        _alarm = NULL;
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_http.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,182 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+int GSwifi::httpGet (const char *host, int port, const char *uri, bool ssl, const char *user, const char *pwd, void(*func)(int)) {
+    char ip[17];
+    int cid;
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    if (getHostByName(host, ip)) return -1;
+    if (! port) {
+        if (ssl) {
+            port = 443;
+        } else {
+            port = 80;
+        }
+    }
+
+    if (cmdHTTPCONF(3, "close")) return -1; // Connection
+    cmdHTTPCONFDEL(5);
+    cmdHTTPCONFDEL(7);
+    cmdHTTPCONF(11, host); // Host
+    if (user && pwd) {
+        char tmp[CFG_CMD_SIZE], tmp2[CFG_CMD_SIZE];
+        snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd);
+        base64encode(tmp, strlen(tmp), tmp2, sizeof(tmp2));
+        sprintf(tmp, "Basic %s", tmp2);
+        cmdHTTPCONF(2, tmp); // Authorization
+    } else {
+        cmdHTTPCONFDEL(2);
+    }
+
+    _state.cid = -1;
+    if (cmdHTTPOPEN(ip, port, ssl)) return -1;
+    if (_state.cid < 0) return -1;
+    cid = _state.cid;
+    _con[cid].protocol = PROTO_HTTPGET;
+    _con[cid].type = TYPE_CLIENT;
+    _con[cid].func = func;
+
+    cmdHTTPSEND(cid, false, uri); // GET
+    return cid;
+}
+
+int GSwifi::httpPost (const char *host, int port, const char *uri, const char *body, bool ssl, const char *user, const char *pwd, void(*func)(int)) {
+    char cmd[CFG_CMD_SIZE];
+    char ip[17];
+    int cid, len;
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    if (getHostByName(host, ip)) return -1;
+    if (! port) {
+        if (ssl) {
+            port = 443;
+        } else {
+            port = 80;
+        }
+    }
+    len = strlen(body);
+
+    if (cmdHTTPCONF(3, "close")) return -1; // Connection
+    sprintf(cmd, "%d", len);
+    cmdHTTPCONF(5, cmd); // Content-Length
+    cmdHTTPCONF(7, "application/x-www-form-urlencoded"); // Content-type
+    cmdHTTPCONF(11, host); // Host
+    if (user && pwd) {
+        char tmp[CFG_CMD_SIZE], tmp2[CFG_CMD_SIZE];
+        snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd);
+        base64encode(tmp, strlen(tmp), tmp2, sizeof(tmp2));
+        sprintf(tmp, "Basic %s", tmp2);
+        cmdHTTPCONF(2, tmp); // Authorization
+    } else {
+        cmdHTTPCONFDEL(2);
+    }
+
+    _state.cid = -1;
+    if (cmdHTTPOPEN(ip, port, ssl)) return -1;
+    if (_state.cid < 0) return -1;
+    cid = _state.cid;
+    _con[cid].protocol = PROTO_HTTPPOST;
+    _con[cid].type = TYPE_CLIENT;
+    _con[cid].func = func;
+
+    cmdHTTPSEND(cid, true, uri, len); // POST
+    sprintf(cmd, "\x1bH%X", cid);
+    sendData(body, len, DEFAULT_WAIT_RESP_TIMEOUT, cmd);
+    return cid;
+}
+
+
+/* base64encode code from 
+ * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
+ */
+int GSwifi::base64encode (const char *input, int length, char *output, int len) {
+    static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+    unsigned int c, c1, c2, c3;
+
+    if (len < ((((length-1)/3)+1)<<2)) return -1;
+    for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) {
+        c1 = ((((unsigned char)*((unsigned char *)&input[i]))));
+        c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0;
+        c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0;
+
+        c = ((c1 & 0xFC) >> 2);
+        output[j+0] = base64[c];
+        c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4);
+        output[j+1] = base64[c];
+        c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6);
+        output[j+2] = (length>i+1)?base64[c]:'=';
+        c = (c3 & 0x3F);
+        output[j+3] = (length>i+2)?base64[c]:'=';
+    }
+    output[(((length-1)/3)+1)<<2] = '\0';
+    return 0;
+}
+
+
+/* urlencode code from 
+ * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
+ */
+int GSwifi::urlencode (const char *str, char *buf, int len) {
+//  char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf;
+    const char *pstr = str;
+    char *pbuf = buf;
+
+    if (len < (strlen(str) * 3 + 1)) return -1;
+    while (*pstr) {
+        if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~') 
+            *pbuf++ = *pstr;
+        else if (*pstr == ' ') 
+            *pbuf++ = '+';
+        else 
+            *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
+        pstr++;
+    }
+    *pbuf = '\0';
+    return 0;
+}
+
+/* urldecode code from 
+ * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
+ */
+int GSwifi::urldecode (const char *str, char *buf, int len) {
+//  char *pstr = str, *buf = (char*)malloc(strlen(str) + 1), *pbuf = buf;
+    const char *pstr = str;
+    char *pbuf = buf;
+
+    if (len < (strlen(str) / 3 - 1)) return -1;
+    while (*pstr) {
+        if (*pstr == '%') {
+            if (pstr[1] && pstr[2]) {
+                *pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
+                pstr += 2;
+            }
+        } else if (*pstr == '+') { 
+            *pbuf++ = ' ';
+        } else {
+            *pbuf++ = *pstr;
+        }
+        pstr++;
+    }
+    *pbuf = '\0';
+    return 0;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_httpd.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,294 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+#ifdef CFG_ENABLE_HTTPD
+
+int GSwifi::httpd (int port) {
+    int i;
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    memset(&_httpd, 0, sizeof(_httpd));
+    for (i = 0; i < 16; i ++) {
+        _httpd[i].mode = HTTPDMODE_REQUEST;
+    }
+    _handler_count = 0;
+
+    _httpd_cid = listen(PROTO_TCP, port);
+    if (_httpd_cid < 0) return -1;
+
+    _con[_httpd_cid].protocol = PROTO_HTTPD;
+    return _httpd_cid;
+}
+
+void GSwifi::httpdRecvData (int cid, char c) {
+
+    switch (_httpd[cid].mode) {
+    case HTTPDMODE_REQUEST:
+        if (_con[cid].buf == NULL)
+            _con[cid].buf = new CircBuffer<char>(CFG_DATA_SIZE);
+        _httpd[cid].buf = _con[cid].buf;
+        _httpd[cid].buf->flush();
+        if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) {
+            _httpd[cid].buf->queue(c);
+            _httpd[cid].mode = HTTPDMODE_REQUEST_STR;
+        }
+        break;
+    case HTTPDMODE_REQUEST_STR:
+        switch (c) {
+        case 0:
+        case 0x0d: // CR
+            break;
+        case 0x0a: // LF
+            if (httpdParseRequest(cid)) {
+                _httpd[cid].mode = HTTPDMODE_REQUEST_STR;
+            } else {
+                _httpd[cid].mode = HTTPDMODE_HEADER;
+            }
+            _httpd[cid].enter = 0;
+            break;
+        default:
+            _httpd[cid].buf->queue(c);
+            break;
+        }
+        break;
+    case HTTPDMODE_HEADER:
+        switch (c) {
+        case 0:
+        case 0x0d: // CR
+            break;
+        case 0x0a: // LF
+            if (_httpd[cid].buf->available() == 0) {
+//                if ((_httpd[cid].enter == 0x0d && c == 0x0a) || (_httpd[cid].enter == 0x0a && c == 0x0a)) {
+                if (_httpd[cid].enter == 0x0a && c == 0x0a) {
+                    _httpd[cid].buf->flush();
+#ifdef CFG_ENABLE_WEBSOCKET
+                    if (_httpd[cid].websocket) {
+                        INFO("MODE_WEBSOCKET");
+                        wsAccept(cid);
+                        _httpd[cid].mode = HTTPDMODE_WEBSOCKET;
+                    } else
+#endif
+                    if (_httpd[cid].length) {
+                        INFO("MODE_BODY");
+                        _httpd[cid].mode = HTTPDMODE_BODY;
+                    } else {
+                        INFO("MODE_ENTER");
+                        _httpd[cid].mode = HTTPDMODE_ENTER;
+                        _con[cid].received = true;
+                    }
+                }
+                _httpd[cid].buf->flush();
+                _httpd[cid].enter = c;
+                break;
+            }
+
+            httpdParseHeader(cid);
+            _httpd[cid].enter = c;
+            break;
+        default:
+            _httpd[cid].buf->queue(c);
+            _httpd[cid].enter = 0;
+            break;
+        }
+        break;
+    case HTTPDMODE_BODY:
+        _httpd[cid].buf->queue(c);
+        if (_httpd[cid].buf->available() >= _httpd[cid].length) {
+            _httpd[cid].mode = HTTPDMODE_ENTER;
+            _con[cid].received = true;
+        }
+        break;
+#ifdef CFG_ENABLE_WEBSOCKET
+    case HTTPDMODE_WEBSOCKET:
+    case HTTPDMODE_WEBSOCKET_MASK:
+    case HTTPDMODE_WEBSOCKET_BODY:
+        wsRecvData(cid, c);
+        break;
+#endif
+    }
+}
+
+void GSwifi::httpdPoll () {
+    for (int cid = 0; cid < 16; cid ++) {
+        if (isConnected(cid) && _con[cid].protocol == PROTO_HTTPD) {
+
+    if (_httpd[cid].mode == HTTPDMODE_ENTER) {
+        int i = httpdGetHandler(_httpd[cid].uri);
+        if (i >= 0) { 
+            if (_httpd_handler[i].dir) {
+                // file
+                httpdFile(cid, _httpd_handler[i].dir);
+            } else
+            if (_httpd_handler[i].func) {
+                // cgi
+                _httpd_handler[i].func(cid);
+//                _httpd[cid].keepalive = 0;
+            } else {
+                httpdError(cid, 403);
+            }
+        } else {
+            httpdError(cid, 404);
+        }
+
+        if (_httpd[cid].keepalive) {
+            DBG("keepalive %d", _httpd[cid].keepalive);
+            _httpd[cid].keepalive --;
+        } else {
+            close(cid);
+        }
+        _httpd[cid].mode = HTTPDMODE_REQUEST;
+#ifdef CFG_ENABLE_WEBSOCKET
+    } else
+    if (_httpd[cid].mode == HTTPDMODE_WEBSOCKET_ENTER) {
+        wsParseRequest(cid);
+        _httpd[cid].mode = HTTPDMODE_WEBSOCKET;
+#endif
+    }
+
+        }
+    }
+}
+
+int GSwifi::httpdParseRequest (int cid) {
+    int i, j, len;
+    char buf[CFG_CMD_SIZE];
+
+    for (len = 0; len < sizeof(buf); len++) {
+        if (_httpd[cid].buf->dequeue(&buf[len]) == false) break;
+    }
+    buf[len] = 0;
+
+    if (strnicmp(buf, "GET ", 4) == 0) {
+        _httpd[cid].req = REQ_HTTPGET;
+        j = 4;
+    } else
+    if (strnicmp(buf, "POST ", 5) == 0) {
+        _httpd[cid].req = REQ_HTTPPOST;
+        j = 5;
+    } else {
+        return -1;
+    }
+
+    if (_httpd[cid].uri == NULL)
+        _httpd[cid].uri = (char*)malloc(CFG_CMD_SIZE);
+
+    for (i = 0; i < len - j; i ++) {
+        _httpd[cid].uri[i] = buf[i + j];
+        if (buf[i + j] == ' ' || i >= CFG_CMD_SIZE - 1) {
+            _httpd[cid].uri[i] = 0;
+            INFO("URI %d '%s'", _httpd[cid].req, _httpd[cid].uri);
+            _httpd[cid].mode = HTTPDMODE_HEADER;
+            _httpd[cid].buf->flush();
+            _httpd[cid].length = 0;
+            _httpd[cid].n = 0;
+            _httpd[cid].filename = NULL;
+            _httpd[cid].querystring = NULL;
+#ifdef CFG_ENABLE_WEBSOCKET
+            _httpd[cid].websocket = 0;
+#endif
+            break;
+        }
+    }
+
+    i = httpdGetHandler(_httpd[cid].uri);
+    if (i >= 0) { 
+        _httpd[cid].filename = &_httpd[cid].uri[strlen(_httpd_handler[i].uri)];
+        for (i = 0; i < strlen(_httpd[cid].filename); i ++) {
+            if (_httpd[cid].filename[i] == '?') {
+                _httpd[cid].filename[i] = 0;
+                _httpd[cid].querystring = _httpd[cid].filename + i + 1;
+                break;
+            }
+        }
+        INFO("FILE '%s' QUERY '%s'", _httpd[cid].filename, _httpd[cid].querystring);
+    }
+    return 0;
+}
+
+#define HEADER_TABLE_NUM 5
+int GSwifi::httpdParseHeader (int cid) {
+    int i;
+    char buf[CFG_CMD_SIZE];
+    static const struct HEADER_TABLE {
+        const char header[24];
+        void (GSwifi::*func)(int id, const char*);
+    } header_table[HEADER_TABLE_NUM] = {
+      {"Content-Length:",         &GSwifi::reqContentLength},
+      {"Connection:",             &GSwifi::reqConnection},
+      {"Upgrade: websocket",      &GSwifi::reqUpgrade},
+      {"Sec-WebSocket-Version:",  &GSwifi::reqWebSocketVersion},
+      {"Sec-WebSocket-Key:",      &GSwifi::reqWebSocketKey},
+    };
+    for (i = 0; i < sizeof(buf); i++) {
+        if (_httpd[cid].buf->dequeue(&buf[i]) == false) break;
+    }
+    buf[i] = 0;
+
+    for (i = 0; i < HEADER_TABLE_NUM; i ++) {
+        if (strnicmp(buf, header_table[i].header, strlen(header_table[i].header)) == 0) {
+            DBG("parse header %d '%s'\r\n", i, buf);
+            if (header_table[i].func != NULL) {
+                (this->*(header_table[i].func))(cid, buf);
+            }
+            return 0;
+        }
+    }
+
+    return -1;
+}
+
+void GSwifi::reqContentLength (int cid, const char *buf) {
+    _httpd[cid].length = atoi(&buf[16]);
+}
+
+void GSwifi::reqConnection (int cid, const char *buf) {
+    if (strnicmp(&buf[12], "Keep-Alive", 10) == 0 && _httpd[cid].keepalive == 0) {
+        _httpd[cid].keepalive = CFG_HTTPD_KEEPALIVE;
+    } else {
+        _httpd[cid].keepalive = 0;
+    }
+}
+
+#ifdef CFG_ENABLE_WEBSOCKET
+void GSwifi::reqUpgrade (int cid, const char *buf) {
+    if (! _httpd[cid].websocket) _httpd[cid].websocket = 1;
+}
+
+void GSwifi::reqWebSocketVersion (int cid, const char *buf) {
+    _httpd[cid].websocket = atoi(&buf[23]);
+}
+
+void GSwifi::reqWebSocketKey (int cid, const char *buf) {
+    if (_httpd[cid].websocket_key == NULL) {
+        _httpd[cid].websocket_key = (char*)malloc(30);
+    }
+    strncpy(_httpd[cid].websocket_key, &buf[19], 30);
+}
+#else
+void GSwifi::reqUpgrade (int cid, const char *buf) {
+}
+void GSwifi::reqWebSocketVersion (int cid, const char *buf) {
+}
+void GSwifi::reqWebSocketKey (int cid, const char *buf) {
+}
+#endif
+
+#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_httpd_util.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,196 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+#ifdef CFG_ENABLE_HTTPD
+
+int GSwifi::httpdFile (int cid, char *dir) {
+    FILE *fp;
+    int i, len;
+    char buf[CFG_DATA_SIZE];
+    char file[CFG_CMD_SIZE];
+
+    INFO("httpdFile %d %s", cid, dir);
+
+    strcpy(file, dir);
+    strcat(file, _httpd[cid].filename);
+    if (file[strlen(file) - 1] == '/') {
+        strcat(file, "index.html");
+    }
+    DBG("file: %s\r\n", file);
+
+    fp = fopen(file, "r");
+    if (fp) {
+        strcpy(buf, "HTTP/1.1 200 OK\r\n");
+        send(cid, buf, strlen(buf));
+        {
+            // file size
+            i = ftell(fp);
+            fseek(fp, 0, SEEK_END);
+            len = ftell(fp);
+            fseek(fp, i, SEEK_SET);
+        }
+
+        strcpy(buf, "Server: GSwifi httpd\r\n");
+        send(cid, buf, strlen(buf));
+        if (_httpd[cid].keepalive) {
+            strcpy(buf, "Connection: Keep-Alive\r\n");
+        } else {
+            strcpy(buf, "Connection: close\r\n");
+        }
+        send(cid, buf, strlen(buf));
+        sprintf(buf, "Content-Type: %s\r\n", mimetype(file));
+        send(cid, buf, strlen(buf));
+        sprintf(buf, "Content-Length: %d\r\n\r\n", len);
+        send(cid, buf, strlen(buf));
+
+        for (;;) {
+            i = fread(buf, sizeof(char), sizeof(buf), fp);
+            if (i <= 0) break;
+            send(cid, buf, i);
+#if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
+            if (feof(fp)) break;
+#endif
+        }
+        fclose(fp);
+        return 0;
+    }
+
+    httpdError(cid, 404);
+    return -1;
+}
+
+void GSwifi::httpdError (int cid, int err) {
+    char buf[CFG_CMD_SIZE], msg[30];
+    
+    switch (err) {
+    case 400:
+        strcpy(msg, "Bad Request");
+        break;
+    case 403:
+        strcpy(msg, "Forbidden");
+        break;
+    case 404:
+        strcpy(msg, "Not Found");
+        break;
+    case 500:
+    default:
+        strcpy(msg, "Internal Server Error");
+        break;
+    }
+    DBG("httpd error: %d %d %s\r\n", cid, err, msg);
+    
+    sprintf(buf, "HTTP/1.1 %d %s\r\n", err, msg);
+    send(cid, buf, strlen(buf));
+    strcpy(buf, "Content-Type: text/html\r\n\r\n");
+    send(cid, buf, strlen(buf));
+
+    sprintf(buf, "<html><head><title>%d %s</title></head>\r\n", err, msg);
+    send(cid, buf, strlen(buf));
+    sprintf(buf, "<body><h1>%s</h1></body></html>\r\n", msg);
+    send(cid, buf, strlen(buf));
+    wait_ms(100);
+    close(cid);
+//    WARN("%d.%d.%d.%d ", _httpd[cid].host.getIp()[0], _httpd[cid].host.getIp()[1], _httpd[cid].host.getIp()[2], _httpd[cid].host.getIp()[3]);
+//    WARN("%s %s %d %d -\r\n", _httpd[cid].type == GSPROT_HTTPGET ? "GET" : "POST", _httpd[cid].uri, _httpd[cid].length, err);
+}
+
+int GSwifi::httpdGetHandler (const char *uri) {
+    int i;
+ 
+    for (i = 0; i < _handler_count; i ++) {
+        if (strncmp(uri, _httpd_handler[i].uri, strlen(_httpd_handler[i].uri)) == NULL) {
+            // found
+            return i;
+        }
+    }
+    return -1;
+}
+
+int GSwifi::httpdAttach (const char *uri, const char *dir) {
+    if (_handler_count < CFG_HTTPD_HANDLER_NUM) {
+        _httpd_handler[_handler_count].uri = (char*)malloc(strlen(uri) + 1);
+        strcpy(_httpd_handler[_handler_count].uri, uri);
+        _httpd_handler[_handler_count].dir = (char*)malloc(strlen(dir) + 1);
+        strcpy(_httpd_handler[_handler_count].dir, dir);
+        _httpd_handler[_handler_count].func = NULL;
+        DBG("httpdAttach %s %s\r\n", _httpd_handler[_handler_count].uri, _httpd_handler[_handler_count].dir);
+        _handler_count ++;
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+int GSwifi::httpdAttach (const char *uri, void (*funcCgi)(int)) {
+    if (_handler_count < CFG_HTTPD_HANDLER_NUM) {
+        _httpd_handler[_handler_count].uri = (char*)malloc(strlen(uri) + 1);
+        strcpy(_httpd_handler[_handler_count].uri, uri);
+        _httpd_handler[_handler_count].dir = NULL;
+        _httpd_handler[_handler_count].func = funcCgi;
+        DBG("httpdAttach %s %08x\r\n", _httpd_handler[_handler_count].uri, _httpd_handler[_handler_count].func);
+        _handler_count ++;
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+
+#define MIMETABLE_NUM 9
+char *GSwifi::mimetype (char *file) {
+    static const struct MIMETABLE {
+        const char ext[5];
+        const char type[24];
+    } mimetable[MIMETABLE_NUM] = {
+        {"txt", "text/plain"},  // default
+        {"html", "text/html"},
+        {"htm", "text/html"},
+        {"css", "text/css"},
+        {"js", "application/javascript"},
+        {"jpg", "image/jpeg"},
+        {"png", "image/png"},
+        {"gif", "image/gif"},
+        {"ico", "image/x-icon"},
+    };
+    int i, j;
+
+    for (i = 0; i < MIMETABLE_NUM; i ++) {
+        j = strlen(mimetable[i].ext);
+        if (file[strlen(file) - j - 1] == '.' &&
+          strnicmp(&file[strlen(file) - j], mimetable[i].ext, j) == NULL) {
+            return (char*)mimetable[i].type;
+        }
+    }
+    return (char*)mimetable[0].type;
+}
+
+int GSwifi::strnicmp (const char *p1, const char *p2, int n) {
+    int i, r = -1;
+    char c1, c2;
+    
+    for (i = 0; i < n; i ++) {
+        c1 = (p1[i] >= 'a' && p1[i] <= 'z') ? p1[i] - ('a' - 'A'): p1[i];
+        c2 = (p2[i] >= 'a' && p2[i] <= 'z') ? p2[i] - ('a' - 'A'): p2[i];
+        r = c1 - c2;
+        if (r) break;
+    }
+    return r;
+}
+#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_httpd_ws.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,300 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+#ifdef CFG_ENABLE_WEBSOCKET
+
+#include "sha1.h"
+
+int GSwifi::wsOpen (const char *host, int port, const char *uri, const char *user, const char *pwd) {
+    int cid;
+    char cmd[CFG_CMD_SIZE], tmp[CFG_CMD_SIZE];
+    char ip[17];
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    if (getHostByName(host, ip)) return -1;
+    if (! port) {
+        port = 80;
+    }
+
+    cid = open(PROTO_TCP, ip, port);
+    if (cid < 0) return -1;
+    DBG("ws cid %d\r\n", cid);
+
+    // request
+    snprintf(cmd, sizeof(cmd), "GET %d HTTP/1.1\r\n", uri);
+    send(cid, cmd, strlen(cmd));
+    if (host) {
+        snprintf(cmd, sizeof(cmd), "Host: %s\r\n", host);
+        send(cid, cmd, strlen(cmd));
+    }
+    if (user && pwd) {
+        snprintf(cmd, sizeof(cmd), "%s:%s", user, pwd);
+        base64encode(cmd, strlen(cmd), tmp, sizeof(tmp));
+        snprintf(cmd, sizeof(cmd), "Authorization: Basic %s\r\n", tmp);
+        send(cid, cmd, strlen(cmd));
+    }
+    strcpy(cmd, "Upgrade: websocket\r\n");
+    send(cid, cmd, strlen(cmd));
+    strcpy(cmd, "Connection: Upgrade\r\n");
+    send(cid, cmd, strlen(cmd));
+    getMacAddress(tmp);
+    memcpy(&tmp[6], host, 10);
+    base64encode(tmp, 16, cmd, sizeof(cmd));
+    snprintf(cmd, sizeof(cmd), "Sec-WebSocket-Key: %s\r\n", tmp);
+    send(cid, cmd, strlen(cmd));
+    strcpy(cmd, "Sec-WebSocket-Version: 13\r\n\r\n");
+    send(cid, cmd, strlen(cmd));
+
+    if (wsWait(cid, 101)) {
+        close(cid);
+        return -1;
+    }
+    wsWait(cid, 0);
+    return cid;
+}
+
+int GSwifi::wsWait (int cid, int code) {
+    Timer timeout;
+    int i, n, len;
+    char buf[CFG_DATA_SIZE], data[CFG_CMD_SIZE];
+
+    if (code == 0) {
+        // dummy read
+        timeout.start();
+        while (timeout.read_ms() < CFG_TIMEOUT) {
+            wait_ms(10);
+            if (!readable(cid)) break;
+            n = recv(cid, buf, sizeof(buf));
+            if (n <= 0) break;
+        }
+        timeout.stop();
+        return 0;
+    }
+
+    // wait responce
+    len = 0;
+    timeout.start();
+    while (timeout.read_ms() < CFG_TIMEOUT) {
+        wait_ms(10);
+        n = recv(cid, buf, sizeof(buf));
+        for (i = 0; i < n; i ++) {
+            if (buf[i] == '\r') continue;
+            if (buf[i] == '\n') {
+                if (len == 0) continue;
+                goto next;
+            } else
+            if (len < sizeof(data) - 1) {
+                data[len] = buf[i];
+                len ++;
+            }
+        }
+    }
+next:
+    data[len] = 0;
+    timeout.stop();
+    DBG("ws: %s\r\n", data);
+ 
+    // check return code
+    if (strncmp(data, "HTTP/1.1 ", 9) != 0) return -1;
+    i = atoi(&data[9]);
+    DBG("ws status %d\r\n", i);
+    return i == code ? 0 : -1;
+}
+
+int GSwifi::wsSend (int cid, const char *buf, int len, const char *mask) {
+    int i = 0, r;
+    char tmp[10];
+ 
+    tmp[i++] = 0x81; // single, text frame
+    if (len < 126) {
+        tmp[i++] = (mask == NULL ? 0 : 0x80) | len;
+    } else {
+        tmp[i++] = (mask == NULL ? 0 : 0x80) | 126;
+        tmp[i++] = (len >> 8) & 0xff;
+        tmp[i++] = len & 0xff;
+    }
+    if (mask) {
+        memcpy(&tmp[i], mask, 4);
+        i += 4;
+    }
+    r = send(cid, tmp, strlen(tmp));
+ 
+    if (r == 0) {
+        if (mask) {
+            char tmp2[len];
+            for (i = 0; i < len; i ++) {
+                tmp2[i] = buf[i] ^ mask[i & 0x03];
+            }
+            r = send(cid, tmp2, len);
+        } else {
+            r = send(cid, buf, len);
+        }
+    }
+    return r;
+}
+
+#ifdef CFG_ENABLE_HTTPD
+
+void GSwifi::wsRecvData (int cid, char c) {
+
+    switch (_httpd[cid].mode) {
+    case HTTPDMODE_WEBSOCKET:
+        if (_httpd[cid].n == 0) {
+            // flag
+            _httpd[cid].websocket_opcode = c & 0x0f;
+            _httpd[cid].websocket_flg = c << 8;
+            _httpd[cid].n ++;
+        } else
+        if (_httpd[cid].n == 1) {
+            // length 7bit
+            _httpd[cid].websocket_flg |= c;
+            _httpd[cid].length = c & 0x7f;
+            _httpd[cid].n ++;
+            if (_httpd[cid].length < 126) {
+                _httpd[cid].n = 0;
+                if (_httpd[cid].length) {
+                    if (_httpd[cid].websocket_flg & 0x0080) {
+                        _httpd[cid].mode = HTTPDMODE_WEBSOCKET_MASK;
+                    } else {
+                        _httpd[cid].mode = HTTPDMODE_WEBSOCKET_BODY;
+                    }
+                } else {
+                    _httpd[cid].mode = HTTPDMODE_WEBSOCKET_ENTER;
+                }
+                DBG("ws length %d\r\n", _httpd[cid].length);
+            }
+        } else {
+            // length 16bit,64bit
+            if (_httpd[cid].n == 2) {
+                _httpd[cid].length = c;
+                _httpd[cid].n ++;
+            } else
+            if (_httpd[cid].n < 9 && (_httpd[cid].websocket_flg & 0x7f) == 127) {
+                // 64bit
+                _httpd[cid].length = (_httpd[cid].length << 8) | c;
+                _httpd[cid].n ++;
+            } else {
+                // end
+                _httpd[cid].length = (_httpd[cid].length << 8) | c;
+                _httpd[cid].n = 0;
+                if (_httpd[cid].websocket_flg & 0x0080) {
+                    _httpd[cid].mode = HTTPDMODE_WEBSOCKET_MASK;
+                } else {
+                    _httpd[cid].mode = HTTPDMODE_WEBSOCKET_BODY;
+                }
+                DBG("ws length2 %d\r\n", _httpd[cid].length);
+            }
+        }
+        break;
+    case HTTPDMODE_WEBSOCKET_MASK:
+        // masking key
+        _httpd[cid].websocket_mask[_httpd[cid].n] = c;
+        _httpd[cid].n ++;
+        if (_httpd[cid].n >= 4) {
+            _httpd[cid].n = 0;
+            _httpd[cid].mode = HTTPDMODE_WEBSOCKET_BODY;
+            DBG("ws mask\r\n");
+        }
+        break;
+    case HTTPDMODE_WEBSOCKET_BODY:
+        // payload
+        if (_httpd[cid].websocket_flg & 0x0080) {
+            // un-mask
+            _httpd[cid].buf->queue(c ^ _httpd[cid].websocket_mask[_httpd[cid].n & 0x03]); 
+        } else {
+            _httpd[cid].buf->queue(c); 
+        }
+        _httpd[cid].n ++;
+        if (_httpd[cid].n >= _httpd[cid].length) {
+            _httpd[cid].mode = HTTPDMODE_WEBSOCKET_ENTER;
+            _con[cid].received = true;
+        }
+        break;
+    }
+}
+
+int GSwifi::wsParseRequest (int cid) {
+    int i;
+
+    DBG("ws opcode %d\r\n", _httpd[cid].websocket_opcode);
+    switch (_httpd[cid].websocket_opcode) {
+    case 0x00: // continuation
+        break;
+    case 0x01: // text
+    case 0x02: // binary
+        i = httpdGetHandler(_httpd[cid].uri);
+        if (i >= 0) {
+            if (_httpd_handler[i].func) {
+                // cgi
+                _httpd_handler[i].func(cid);
+            }
+        }
+        break;
+    case 0x08: // close
+        close(cid);
+        break;
+    case 0x09: // ping
+        {
+        char pong[_httpd[cid].n + 2];
+        pong[0] = 0x8a;
+        pong[1] = 0x04;
+        for (i = 0; i < _httpd[cid].length; i ++) {
+            if (_httpd[cid].buf->dequeue(&pong[i + 2]) == false) break;
+        }
+        send(cid, pong, _httpd[cid].length + 2);
+        }
+        break;
+    case 0x0a: // pong
+        break;
+    default:
+        break;
+    }
+    _httpd[cid].n = 0;
+    _httpd[cid].length = 0;
+    return 0;
+}
+
+int GSwifi::wsAccept (int cid) {
+    char buf[CFG_CMD_SIZE], buf2[CFG_CMD_SIZE];
+    
+    DBG("websocket accept: %d\r\n", cid);
+
+    strcpy(buf, "HTTP/1.1 101 Switching Protocols\r\n");
+    send(cid, buf, strlen(buf));
+    strcpy(buf, "Upgrade: websocket\r\n");
+    send(cid, buf, strlen(buf));
+    strcpy(buf, "Connection: Upgrade\r\n");
+    send(cid, buf, strlen(buf));
+
+    strcpy(buf, "Sec-WebSocket-Accept: ");
+    send(cid, buf, strlen(buf));
+    strcpy(buf, _httpd[cid].websocket_key);
+    strcat(buf, "258EAFA5-E914-47DA-95CA-C5AB0DC85B11");
+    sha1(buf, strlen(buf), buf2);
+    base64encode(buf2, 20, buf, sizeof(buf));
+    send(cid, buf, strlen(buf));
+    strcpy(buf, "\r\n\r\n");
+    send(cid, buf, strlen(buf));
+    return 0;
+}
+
+#endif
+#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_msg.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,555 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+#ifdef CFG_ENABLE_RTOS
+#undef DBG
+#define DBG(x, ...)
+#endif
+
+void GSwifi::recvData (char c) {
+    static int cid, sub, len, count;
+
+#ifdef DEBUG_DUMP
+    if (c < 0x20) {
+        DBG("%02x_", c);
+    } else {
+        DBG("%c_", c);
+    }
+#endif
+    switch (_state.mode) {
+    case MODE_COMMAND:
+        switch (c) {
+        case 0:
+        case 0x0a: // LF
+        case 0x0d: // CR
+            break;
+        case 0x1b: // ESC
+            _state.buf->flush();
+            _state.mode = MODE_ESCAPE;
+            break;
+        default:
+            _state.buf->flush();
+            _state.buf->queue(c);
+            _state.mode = MODE_CMDRESP;
+            break;
+        }
+        break;
+    
+    case MODE_CMDRESP:
+        switch (c) {
+        case 0:
+            break;
+        case 0x0a: // LF
+        case 0x0d: // CR
+//            _state.buf->queue(c);
+            parseMessage();
+            _state.mode = MODE_COMMAND;
+            break;
+        case 0x1b: // ESC
+            _state.mode = MODE_ESCAPE;
+            break;
+        default:
+            _state.buf->queue(c);
+            break;
+        }
+        break;
+
+    case MODE_ESCAPE:
+        sub = 0;
+        switch (c) {
+        case 'H':
+            _state.mode = MODE_DATA_RXHTTP;
+            break;
+        case 'u':
+            _state.mode = MODE_DATA_RXUDP;
+            break;
+        case 'y':
+            _state.mode = MODE_DATA_RXUDP_BULK;
+            break;
+        case 'Z':
+            _state.mode = MODE_DATA_RX_BULK;
+            break;
+        case 'S':
+            _state.mode = MODE_DATA_RX;
+            break;
+        case ':':
+            _state.mode = MODE_DATA_RAW;
+            break;
+        case 'O':
+            _state.mode = MODE_COMMAND;
+            _state.ok = true;
+            return;
+        case 'F':
+            _state.mode = MODE_COMMAND;
+            _state.failure = true;
+            return;
+        default:
+            _state.mode = MODE_COMMAND;
+            return;
+        }
+        break;
+    
+    case MODE_DATA_RX:
+    case MODE_DATA_RXUDP:
+        switch (sub) {
+        case 0:
+            // cid
+            cid = x2i(c);
+            sub ++;
+            count = 0;
+            if (_state.mode == MODE_DATA_RX) {
+                sub = 3;
+            }
+            break;
+        case 1:
+            // ip
+            if ((c >= '0' && c <= '9') || c == '.') {
+                _con[cid].ip[count] = c;
+                count ++;
+            } else {
+                _con[cid].ip[count] = 0;
+                _con[cid].port = 0;
+                sub ++;
+            }
+            break;
+        case 2:
+            // port
+            if (c >= '0' && c <= '9') {
+                _con[cid].port = (_con[cid].port * 10) + (c - '0'); 
+            } else {
+                sub ++;
+                count = 0;
+            }
+            break;            
+        default:
+            // data
+            if (_state.escape) {
+                if (c == 'E') {
+                    DBG("recv ascii %d %d/a\r\n", cid, count);
+                    _con[cid].received = true;
+                    _state.mode = MODE_COMMAND;
+                } else {
+                    if (_con[cid].buf != NULL) {
+                        _con[cid].buf->queue(0x1b);
+                        _con[cid].buf->queue(c);
+                    }
+                    count += 2;
+                }
+                _state.escape = false;
+            } else
+            if (c == 0x1b) {
+                _state.escape = true;
+            } else {
+                if (_con[cid].buf != NULL) {
+                    _con[cid].buf->queue(c);
+                    if (_con[cid].buf->available() > CFG_DATA_SIZE - 16) {
+                        setRts(false);
+                        _con[cid].received = true;
+                        WARN("buf full");
+                    }
+                }
+                count ++;
+            }
+            break;
+        }
+        break;
+    
+    case MODE_DATA_RX_BULK:
+    case MODE_DATA_RXUDP_BULK:
+    case MODE_DATA_RXHTTP:
+        switch (sub) {
+        case 0:
+            // cid
+            cid = x2i(c);
+            sub ++;
+            len = 0;
+            count = 0;
+            if (_state.mode != MODE_DATA_RXUDP_BULK) {
+                sub = 3;
+            }
+            break;
+        case 1:
+            // ip
+            if ((c >= '0' && c <= '9') || c == '.') {
+                _con[cid].ip[count] = c;
+                count ++;
+            } else {
+                _con[cid].ip[count] = 0;
+                _con[cid].port = 0;
+                sub ++;
+            }
+            break;
+        case 2:
+            // port
+            if (c >= '0' && c <= '9') {
+                _con[cid].port = (_con[cid].port * 10) + (c - '0'); 
+            } else {
+                sub ++;
+                count = 0;
+            }
+            break;
+        case 3:
+            // length
+            len = (len * 10) + (c - '0');
+            count ++;
+            if (count >= 4) {
+                sub ++;
+                count = 0;
+            }
+            break;
+        default:
+            // data
+#ifdef CFG_ENABLE_HTTPD
+            if (_con[cid].protocol == PROTO_HTTPD) {
+                httpdRecvData(cid, c);
+            } else
+#endif
+            if (_con[cid].buf != NULL) {
+                _con[cid].buf->queue(c);
+                if (_con[cid].buf->available() > CFG_DATA_SIZE - 16) {
+                    setRts(false);
+                    _con[cid].received = true;
+                    WARN("buf full");
+                }
+            }
+            count ++;
+            if (count >= len) {
+                DBG("recv bulk %d %d/%d\r\n", cid, count, len);
+                _con[cid].received = true;
+                _state.mode = MODE_COMMAND;
+            }
+            break;
+        }
+        break;
+    }
+}
+
+#define MSG_TABLE_NUM 15
+#define RES_TABLE_NUM 11
+int GSwifi::parseMessage () {
+    int i;
+    char buf[256];
+    static const struct MSG_TABLE {
+        const char msg[24];
+        void (GSwifi::*func)(const char*);
+    } msg_table[MSG_TABLE_NUM] = {
+      {"OK",                      &GSwifi::msgOk},
+      {"ERROR",                   &GSwifi::msgError},
+      {"INVALID INPUT",           &GSwifi::msgError},
+      {"CONNECT ",                &GSwifi::msgConnect},
+      {"DISCONNECT ",             &GSwifi::msgDisconnect},
+      {"DISASSOCIATED",           &GSwifi::msgDisassociated},
+      {"Disassociated",           &GSwifi::msgDisassociated},
+      {"Disassociation Event",    &GSwifi::msgDisassociated},
+      {"Serial2WiFi APP",         &GSwifi::msgReset},
+      {"UnExpected Warm Boot",    &GSwifi::msgReset},
+      {"APP Reset-APP SW Reset",  &GSwifi::msgReset},
+      {"APP Reset-Wlan Except",   &GSwifi::msgReset},
+      {"Out of StandBy-Timer",    &GSwifi::msgOutofStandby},
+      {"Out of StandBy-Alarm",    &GSwifi::msgOutofStandby},
+      {"Out of Deep Sleep",       &GSwifi::msgOutofDeepsleep},
+    };
+    static const struct RES_TABLE {
+        const Response res;
+        void (GSwifi::*func)(const char*);
+    } res_table[RES_TABLE_NUM] = {
+      {RES_NULL,        NULL},
+      {RES_CONNECT,     &GSwifi::resConnect},
+      {RES_WPAPSK,      &GSwifi::resWpapsk},
+      {RES_WPS,         &GSwifi::resWps},
+      {RES_MACADDRESS,  &GSwifi::resMacAddress},
+      {RES_DHCP,        &GSwifi::resIp},
+      {RES_DNSLOOKUP,   &GSwifi::resLookup},
+      {RES_HTTP,        &GSwifi::resHttp},
+      {RES_RSSI,        &GSwifi::resRssi},
+      {RES_TIME,        &GSwifi::resTime},
+      {RES_STATUS,      &GSwifi::resStatus},
+    };
+
+    for (i = 0; i < sizeof(buf); i++) {
+        if (_state.buf->dequeue(&buf[i]) == false) break;
+    }
+    buf[i] = 0;
+
+    if (_state.res != RES_NULL) {
+      for (i = 0; i < RES_TABLE_NUM; i ++) {
+        if (res_table[i].res == _state.res) {
+            DBG("parse res %d '%s'\r\n", i, buf);
+            if (res_table[i].func != NULL) {
+                (this->*(res_table[i].func))(buf);
+            }
+        }
+      }
+    }
+
+    for (i = 0; i < MSG_TABLE_NUM; i ++) {
+        if (strncmp(buf, msg_table[i].msg, strlen(msg_table[i].msg)) == 0) {
+            DBG("parse msg %d '%s'\r\n", i, buf);
+            if (msg_table[i].func != NULL) {
+                (this->*(msg_table[i].func))(buf);
+            }
+            return 0;
+        }
+    }
+
+    return -1;
+}
+
+void GSwifi::msgOk (const char *buf) {
+    _state.ok = true;
+    if (_state.status == STAT_DEEPSLEEP) {
+        _state.status = STAT_READY;
+    }
+}
+
+void GSwifi::msgError (const char *buf) {
+    _state.failure = true;
+}
+
+void GSwifi::msgConnect (const char *buf) {
+    int i, count;
+    int cid, acid;
+
+    if (buf[8] < '0' || buf[8] > 'F' || buf[9] != ' ') return;
+
+    cid = x2i(buf[8]);
+    acid = x2i(buf[10]);
+    DBG("forked %d -> %d\r\n", cid, acid);
+    // ip
+    count = 0;
+    for (i = 12; i < strlen(buf); i ++) {
+        if ((buf[i] >= '0' && buf[i] <= '9') || buf[i] == '.') {
+            _con[acid].ip[count] = buf[i];
+            count ++;
+        } else {
+            _con[acid].ip[count] = 0;
+            break;
+        }
+    }
+    // port
+    _con[acid].port = 0;
+    count = 0;
+    for (; i < strlen(buf); i ++) {
+        if (buf[i] >= '0' && buf[i] <= '9') {
+            _con[acid].port = (_con[acid].port * 10) + (buf[i] - '0'); 
+        } else {
+            break;
+        }
+    }
+
+    // initialize
+    initCon(acid, true);
+    _con[acid].protocol = _con[cid].protocol;
+    _con[acid].type = _con[cid].type;
+    _con[acid].parent = cid;
+    _con[acid].func = _con[cid].func;
+    _con[acid].accept = true;
+}
+
+void GSwifi::msgDisconnect (const char *buf) {
+    int cid;
+
+    if (buf[11] < '0' || buf[11] > 'F') return;
+
+    cid = x2i(buf[11]);
+    DBG("disconnect %d\r\n", cid);
+    _con[cid].connected = false;
+}
+
+void GSwifi::msgDisassociated (const char *buf) {
+    int i;
+    DBG("disassociate\r\n");
+    _state.associated = false;
+    for (i = 0; i < 16; i ++) {
+        _con[i].connected = false;
+    }
+#ifdef CFG_ENABLE_RTOS
+    if (_threadPoll)
+        _threadPoll->signal_set(1);
+#endif
+}
+
+void GSwifi::msgReset (const char *buf) {
+    DBG("reset\r\n");
+    _state.initialized = false;
+    _state.mode = MODE_COMMAND;
+    _state.status = STAT_READY;
+    msgDisassociated(NULL);
+    clearFlags();
+#ifdef CFG_ENABLE_RTOS
+    if (_threadPoll) {
+        _threadPoll->terminate();
+        delete _threadPoll;
+    }
+#endif
+}
+
+void GSwifi::msgOutofStandby (const char *buf) {
+    DBG("OutofStandby\r\n");
+    _state.status = STAT_WAKEUP;
+}
+
+void GSwifi::msgOutofDeepsleep (const char *buf) {
+    DBG("OutofDeepsleep\r\n");
+    _state.status = STAT_READY;
+}
+
+void GSwifi::resConnect (const char *buf) {
+    int cid;
+
+    // udp/tcp listen socket
+    if (strncmp(buf, "CONNECT ", 8) == 0 && buf[9] == 0) {
+        cid = x2i(buf[8]);
+        DBG("connect %d\r\n", cid);
+        // initialize
+        initCon(cid, true);
+        _state.cid = cid;
+        _state.res = RES_NULL;
+    }
+}
+
+void GSwifi::resWpapsk (const char *buf) {
+    if (strncmp(buf, "Computing PSK from SSID and PassPhrase", 38) == 0) {
+        _state.res = RES_NULL;
+        DBG("wpapsk\r\n");
+    }
+}
+
+void GSwifi::resWps (const char *buf) {
+    if (_state.n == 0 && strncmp(buf, "SSID", 4) == 0) {
+        strncpy(_state.ssid, &buf[5], sizeof(_state.ssid));
+        _state.n ++;
+    } else
+    if (_state.n == 1 && strncmp(buf, "CHANNEL", 7) == 0) {
+        _state.n ++;
+    } else
+    if (_state.n == 2 && strncmp(buf, "PASSPHRASE", 10) == 0) {
+        strncpy(_state.pass, &buf[11], sizeof(_state.pass));
+        _state.n ++;
+        _state.res = RES_NULL;
+        DBG("wps %s %s\r\n", _state.ssid, _state.pass);
+    }
+}
+
+void GSwifi::resMacAddress (const char *buf) {
+    if (buf[2] == ':' && buf[5] == ':') {
+        strncpy(_state.mac, buf, sizeof(_state.mac));
+        _state.mac[17] = 0;
+        _state.res = RES_NULL;
+        DBG("mac %s\r\n", _state.mac);
+    }
+}
+
+void GSwifi::resIp (const char *buf) {
+    const char *tmp, *tmp2;
+
+    if (_state.n == 0 && strstr(buf, "SubNet") && strstr(buf, "Gateway")) {
+        _state.n ++;
+    } else
+    if (_state.n == 1) {
+        tmp = buf + 1;
+        tmp2 = strstr(tmp, ":");
+        strncpy(_state.ip, tmp, tmp2 - tmp);
+        tmp = tmp2 + 2;
+        tmp2 = strstr(tmp, ":");
+        strncpy(_state.netmask, tmp, tmp2 - tmp);
+        tmp = tmp2 + 2;
+        strncpy(_state.gateway, tmp, sizeof(_state.gateway));
+        _state.n ++;
+        _state.res = RES_NULL;
+        DBG("ip: %s\r\nnetmask: %s\r\ngateway: %s", _state.ip, _state.netmask, _state.gateway);
+    }
+}
+
+void GSwifi::resLookup (const char *buf) {
+    if (strncmp(buf, "IP:", 3) == 0) {
+        strncpy(_state.resolv, &buf[3], sizeof(_state.resolv));
+        _state.res = RES_NULL;
+        DBG("resolv: %s\r\n", _state.resolv);
+    }
+}
+
+void GSwifi::resRssi (const char *buf) {
+    if (buf[0] == '-' || (buf[0] >= '0' && buf[0] <= '9')) {
+        _state.rssi = atoi(buf);
+        _state.res = RES_NULL;
+        DBG("rssi: %d\r\n", _state.rssi);
+    }
+}
+
+void GSwifi::resTime (const char *buf) {
+    int year, month, day, hour, min, sec;
+    struct tm t;
+    if (buf[0] >= '0' && buf[0] <= '9') {
+        sscanf(buf, "%d/%d/%d,%d:%d:%d", &day, &month, &year, &hour, &min, &sec);
+        t.tm_sec = sec;
+        t.tm_min = min;
+        t.tm_hour = hour;
+        t.tm_mday = day;
+        t.tm_mon = month - 1;
+        t.tm_year = year - 1900;   
+        _state.time = mktime(&t);            
+        _state.res = RES_NULL;
+    }
+}
+
+void GSwifi::resChannel (const char *buf) {
+}
+
+void GSwifi::resStatus (const char *buf) {
+    if (_state.n == 0 && strncmp(buf, "NOT ASSOCIATED", 14) == 0) {
+        msgDisassociated(NULL);
+        _state.res = RES_NULL;
+    }
+
+    if (_state.n == 0 && strncmp(buf, "MODE:", 5) == 0) {
+        _state.n ++;
+    } else
+    if (_state.n == 1 && strncmp(buf, "BSSID:", 6) == 0) {
+        const char *tmp = strstr(buf, "SECURITY:") + 2;
+        if (strncmp(tmp, "WEP (OPEN)", 10) == NULL) {
+            _state.sec = SEC_OPEN;
+        } else
+        if (strncmp(tmp, "WEP (SHARED)", 12) == NULL) {
+            _state.sec = SEC_WEP;
+        } else
+        if (strncmp(tmp, "WPA-PERSONAL", 12) == NULL) {
+            _state.sec = SEC_WPA_PSK;
+        } else
+        if (strncmp(tmp, "WPA2-PERSONAL", 13) == NULL) {
+            _state.sec = SEC_WPA2_PSK;
+        }
+        _state.res = RES_NULL;
+    }
+}
+
+void GSwifi::resHttp (const char *buf) {
+    int cid;
+
+    // http client socket
+    if (buf[0] >= '0' && buf[0] <= 'F' && buf[1] == 0) {
+        cid = x2i(buf[0]);
+        DBG("connect %d\r\n", cid);
+        // initialize
+        initCon(cid, true);
+        _state.cid = cid;
+        _state.res = RES_NULL;
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_smtp.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,145 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+#ifdef CFG_ENABLE_SMTP
+
+int GSwifi::mail (const char *host, int port, const char *to, const char *from, const char *subject, const char *mesg, const char *user, const char *pwd) {
+    int ret = -1;
+    int cid;
+    char cmd[CFG_DATA_SIZE];
+    char ip[17];
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    if (getHostByName(host, ip)) return -1;
+    if (! port) {
+        port = 25;
+    }
+
+    cid = open(PROTO_TCP, ip, port);
+    if (cid < 0) return -1;
+    DBG("cid %d\r\n", cid);
+
+    if (smtpWait(cid ,220)) goto exit;
+
+    // send request
+    snprintf(cmd, sizeof(cmd), "EHLO %s\r\n", _state.name);
+    send(cid, cmd, strlen(cmd));
+    wait_ms(100);
+    if (smtpWait(cid ,250)) goto quit;
+    smtpWait(cid ,0);
+
+    if (user && pwd) {
+        // smtp auth
+        int len;
+        snprintf(cmd, sizeof(cmd), "%s%c%s%c%s", user, 0, user, 0, pwd);
+        len = strlen(user) * 2 + strlen(pwd) + 2;
+        char tmp[len + (len / 2)];
+        base64encode(cmd, len, tmp, sizeof(tmp));
+        snprintf(cmd, sizeof(cmd), "AUTH PLAIN %s\r\n", tmp);
+        send(cid, cmd, strlen(cmd));
+        if (smtpWait(cid ,235)) goto quit;
+    }
+ 
+    snprintf(cmd, sizeof(cmd), "MAIL FROM: %s\r\n", from);
+    send(cid, cmd, strlen(cmd));
+    if (smtpWait(cid ,250)) goto quit;
+ 
+    snprintf(cmd, sizeof(cmd), "RCPT TO: %s\r\n", to);
+    send(cid, cmd, strlen(cmd));
+    if (smtpWait(cid ,250)) goto quit;
+ 
+    strcpy(cmd, "DATA\r\n");
+    send(cid, cmd, strlen(cmd));
+    if (smtpWait(cid ,354)) goto quit;
+ 
+    // mail data
+    snprintf(cmd, sizeof(cmd), "From: %s\r\n", from);
+    send(cid, cmd, strlen(cmd));
+    snprintf(cmd, sizeof(cmd), "To: %s\r\n", to);
+    send(cid, cmd, strlen(cmd));
+    snprintf(cmd, sizeof(cmd), "Subject: %s\r\n\r\n", subject);
+    send(cid, cmd, strlen(cmd));
+
+    send(cid, mesg, strlen(mesg));
+    strcpy(cmd, "\r\n.\r\n");
+    send(cid, cmd, strlen(cmd));
+    if (smtpWait(cid ,250)) goto quit;
+    ret = 0;
+
+    INFO("Mail, from: %s, to: %s %d\r\n", from, to, strlen(mesg));
+
+quit:
+    strcpy(cmd, "QUIT\r\n");
+    send(cid, cmd, strlen(cmd));
+    smtpWait(cid ,221);
+exit:
+    close(cid);
+    return ret;
+}
+
+int GSwifi::smtpWait (int cid, int code) {
+    Timer timeout;
+    int i, n, len = 0;
+    char buf[CFG_CMD_SIZE], data[CFG_CMD_SIZE];
+
+    if (code == 0) {
+        // dummy read
+        timeout.start();
+        while (timeout.read_ms() < CFG_TIMEOUT) {
+            wait_ms(10);
+            if (!readable(cid)) break;
+            n = recv(cid, buf, sizeof(buf));
+            if (n <= 0) break;
+        }
+        timeout.stop();
+        return 0;
+    }
+
+    // wait responce
+    len = 0;
+    timeout.start();
+    while (timeout.read_ms() < CFG_TIMEOUT) {
+        wait_ms(10);
+        n = recv(cid, buf, sizeof(buf));
+        for (i = 0; i < n; i ++) {
+            if (buf[i] == '\r') continue;
+            if (buf[i] == '\n') {
+                if (len == 0) continue;
+                goto next;
+            } else
+            if (len < sizeof(data) - 1) {
+                data[len] = buf[i];
+                len ++;
+            }
+        }
+    }
+next:
+    data[len] = 0;
+    DBG("smtp: %s\r\n", data);
+    timeout.stop();
+ 
+    // check return code
+    i = atoi(data);
+    DBG("smtp status %d\r\n", i);
+    return i == code ? 0 : -1;
+}
+
+#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_sock.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,201 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+int GSwifi::getHostByName(const char * host, char * ip)
+{
+    int i, flg = 0;
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    for (i = 0; i < strlen(host); i ++) {
+        if ((host[i] < '0' || host[i] > '9') && host[i] != '.') {
+            flg = 1;
+            break;
+        }
+    }
+    if (!flg) {
+        strncpy(ip, host, 16);
+        return 0;
+    }
+
+    if (cmdDNSLOOKUP(host)) {
+        // retry
+        wait_ms(1000);
+        if (cmdDNSLOOKUP(host)) return -1;
+    }
+    strncpy(ip, _state.resolv, 16);
+    return 0;
+}
+
+int GSwifi::open (Protocol proto, const char *ip, int port, int src, void(*func)(int)) {
+    int cid;
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    _state.cid = -1;
+    if (proto == PROTO_TCP) {
+        if (cmdNCTCP(ip, port)) return -1;
+    } else {
+        if (cmdNCUDP(ip, port, src)) return -1;
+    }
+    if (_state.cid < 0) return -1;
+    cid = _state.cid;
+    _con[cid].protocol = proto;
+    _con[cid].type = TYPE_CLIENT;
+    _con[cid].func = func;
+    return cid;
+}
+
+int GSwifi::listen (Protocol proto, int port, void(*func)(int)) {
+    int cid;
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    _state.cid = -1;
+    if (proto == PROTO_TCP) {
+        if (cmdNSTCP(port)) return -1;
+    } else {
+        if (cmdNSUDP(port)) return -1;
+    }
+    if (_state.cid < 0) return -1;
+    cid = _state.cid;
+    _con[cid].protocol = proto;
+    _con[cid].type = TYPE_SERVER;
+    _con[cid].func = func;
+    return cid;
+}
+
+int GSwifi::close (int cid) {
+
+    if (!isConnected(cid)) return -1;
+
+    _con[cid].connected = false;
+    return cmdNCLOSE(cid);
+}
+
+int GSwifi::send (int cid, const char *buf, int len) {
+    char cmd[CFG_CMD_SIZE];
+
+    if (!isConnected(cid)) return -1;
+
+    if ((_con[cid].protocol == PROTO_TCP) ||
+      (_con[cid].protocol == PROTO_UDP && _con[cid].type == TYPE_CLIENT) ||
+      (_con[cid].protocol == PROTO_HTTPD)) {
+        if (len > CFG_DATA_SIZE) len = CFG_DATA_SIZE;
+        sprintf(cmd, "\x1bZ%X%04d", cid, len);
+        return sendData(buf, len, CFG_TIMEOUT, cmd);
+    } else {
+        return -1;
+    }
+}
+
+int GSwifi::sendto (int cid, const char *buf, int len, const char *ip, int port) {
+    char cmd[CFG_CMD_SIZE];
+
+    if (!isConnected(cid)) return -1;
+
+    if ((_con[cid].protocol == PROTO_UDP && _con[cid].type == TYPE_SERVER)) {
+        if (len > CFG_DATA_SIZE) len = CFG_DATA_SIZE;
+        sprintf(cmd, "\x1bY%X%s:%d:%04d", cid, ip, port, len);
+        return sendData(buf, len, CFG_TIMEOUT, cmd);
+    } else {
+        return -1;
+    }
+}
+
+int GSwifi::recv (int cid, char *buf, int len) {
+    int i;
+
+    if (!isConnected(cid)) return -1;
+
+    if (_con[cid].buf == NULL) return 0;
+    while (!_con[cid].received && _state.mode != MODE_COMMAND);
+    _con[cid].received = false;
+    for (i = 0; i < len; i ++) {
+        if (_con[cid].buf->dequeue(&buf[i]) == false) break;
+    }
+    setRts(true);
+    return i;
+}
+
+int GSwifi::recvfrom (int cid, char *buf, int len, char *ip, int *port) {
+    int i;
+
+    if (!isConnected(cid)) return -1;
+
+    if (_con[cid].buf == NULL) return 0;
+    while (!_con[cid].received && _state.mode != MODE_COMMAND);
+    _con[cid].received = false;
+    for (i = 0; i < len; i ++) {
+        if (_con[cid].buf->dequeue(&buf[i]) == false) break;
+    }
+    strncpy(ip, _con[cid].ip, 16);
+    *port = _con[cid].port;
+    setRts(true);
+    return i;
+}
+
+int GSwifi::readable (int cid) {
+    if (!isConnected(cid)) return -1;
+
+    if (_con[cid].buf == NULL) return -1;
+    return _con[cid].buf->available();
+}
+
+bool GSwifi::isConnected (int cid) {
+    if (cid < 0 || cid >= 16) return false;
+
+    return _con[cid].connected;
+}
+
+int GSwifi::accept (int cid) {
+    int i;
+
+    if (!isConnected(cid)) return -1;
+
+    for (i = 0; i < 16; i ++) {
+        if (_con[i].connected && _con[i].accept && _con[i].parent == cid) {
+            _con[i].accept = false;
+            return i;
+        }
+    }
+    return -1;
+}
+
+int GSwifi::getRemote(int cid, char **ip, int *port) {
+
+    if (!isConnected(cid)) return -1;
+
+    *ip = _con[cid].ip;
+    *port = _con[cid].port;
+    return 0;
+}
+
+void GSwifi::initCon (int cid, bool connected) {
+    _con[cid].parent = -1;
+    _con[cid].func = NULL;
+    _con[cid].accept = false;
+    if (_con[cid].buf == NULL) {
+        _con[cid].buf = new CircBuffer<char>(CFG_DATA_SIZE);
+        if (_con[cid].buf == NULL) error("Can't allocate memory");
+    }
+    _con[cid].buf->flush();
+    _con[cid].connected = connected;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/GSwifi_util.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,177 @@
+/* Copyright (C) 2013 gsfan, 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 "GSwifi.h"
+
+int GSwifi::x2i (char c) {
+    if (c >= '0' && c <= '9') {
+        return c - '0';
+    } else
+    if (c >= 'A' && c <= 'F') {
+        return c - 'A' + 10;
+    } else
+    if (c >= 'a' && c <= 'f') {
+        return c - 'a' + 10;
+    }
+    return 0;
+}
+
+char GSwifi::i2x (int i) {
+    if (i >= 0 && i <= 9) {
+        return i + '0';
+    } else
+    if (i >= 10 && i <= 15) {
+        return i - 10 + 'A';
+    }
+    return 0;
+}
+
+int GSwifi::from_hex (int ch) {
+  return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
+}
+
+int GSwifi::to_hex (int code) {
+  static char hex[] = "0123456789abcdef";
+  return hex[code & 15];
+}
+
+
+int GSwifi::setRegion (int reg) {
+    return cmdWREGDOMAIN(reg);
+}
+
+int GSwifi::getRssi () {
+    cmdWRSSI();
+    return _state.rssi;
+}
+
+int GSwifi::powerSave (int active, int save) {
+    cmdWRXACTIVE(active);
+    return cmdWRXPS(save);
+}
+
+int GSwifi::setRfPower (int power) {
+    if (power < 0 || power > 7) return false;
+    return cmdWP(power);
+}
+
+int GSwifi::setTime (time_t time) {
+    char dmy[16], hms[16];
+    struct tm *t = localtime(&time);
+
+    sprintf(dmy, "%d/%d/%d", t->tm_mday, t->tm_mon + 1, t->tm_year + 1900);
+    sprintf(hms, "%d:%d:%d", t->tm_hour, t->tm_min, t->tm_sec);
+    return cmdSETTIME(dmy, hms);
+}
+
+time_t GSwifi::getTime () {
+    cmdGETTIME();
+    return _state.time;
+}
+
+int GSwifi::ntpdate (char *host, int sec) {
+    char ip[17];
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    if (getHostByName(host, ip)) return -1;
+    return cmdNTIMESYNC(true, ip, sec);
+}
+
+int GSwifi::setGpio (int port, int out) {
+    return cmdDGPIO(port, out);
+}
+
+int GSwifi::provisioning (char *user, char *pass) {
+
+    if (!isAssociated() || _state.status != STAT_READY) return -1;
+
+    return cmdWEBPROV(user, pass);
+}
+
+int GSwifi::standby (int msec) {
+    switch (_state.status) {
+    case STAT_READY:
+        cmdNCLOSEALL();
+        for (int i = 0; i < 16; i ++) {
+            _con[i].connected = false;
+        }
+        cmdSTORENWCONN();
+//        cmdWRXACTIVE(false);
+        break;
+    case STAT_WAKEUP:
+        if (cmdE(false)) return -1;
+        if (_flow) {
+            cmdR(true);
+        }
+        break;
+    default:
+        return -1;
+    }
+
+    _state.status = STAT_STANDBY;
+    return cmdPSSTBY(msec, 0);
+}
+
+
+int GSwifi::deepSleep () {
+    if (_state.status != STAT_READY) return -1;
+
+    _state.status = STAT_DEEPSLEEP;
+    return cmdPSDPSLEEP(); // go deep sleep
+}
+
+int GSwifi::wakeup () {
+    int r;
+
+    if (_state.status == STAT_STANDBY) {
+        Timer timeout;
+        setAlarm(true);
+        timeout.start();
+        while (timeout.read() < CFG_TIMEOUT) {
+            if (_state.status == STAT_WAKEUP) break;
+        }
+        timeout.stop();
+        setAlarm(false);
+    }
+
+    switch (_state.status) {
+    case STAT_WAKEUP:
+        if (cmdE(false)) return -1;
+        if (_flow) {
+            cmdR(true);
+        }
+        cmdBDATA(true);
+        r = cmdRESTORENWCONN();
+        if (!r) {
+            wait_ms(100);
+//            cmdWRXACTIVE(true);
+            _state.status = STAT_READY;
+        }
+        return r;
+    case STAT_DEEPSLEEP:
+        r = cmdAT();
+        if (!r) {
+            _state.status = STAT_READY;
+        }
+        return r;
+    default:
+        break;
+    }
+    return -1;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/sha1.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,364 @@
+/*
+ * source from http://www.ipa.go.jp/security/rfc/RFC3174JA.html
+ */
+#include "sha1.h"
+
+/*
+ *  Define the SHA1 circular left shift macro
+ */
+#define SHA1CircularShift(bits,word) \
+                (((word) << (bits)) | ((word) >> (32-(bits))))
+
+/* Local Function Prototyptes */
+void SHA1PadMessage(SHA1Context *);
+void SHA1ProcessMessageBlock(SHA1Context *);
+
+/*
+ *  SHA1Reset
+ *
+ *  Description:
+ *      This function will initialize the SHA1Context in preparation
+ *      for computing a new SHA1 message digest.
+ *
+ *  Parameters:
+ *      context: [in/out]
+ *          The context to reset.
+ *
+ *  Returns:
+ *      sha Error Code.
+ *
+ */
+int SHA1Reset(SHA1Context *context)
+{
+    if (!context)
+    {
+        return shaNull;
+    }
+
+    context->Length_Low             = 0;
+    context->Length_High            = 0;
+    context->Message_Block_Index    = 0;
+
+    context->Intermediate_Hash[0]   = 0x67452301;
+    context->Intermediate_Hash[1]   = 0xEFCDAB89;
+    context->Intermediate_Hash[2]   = 0x98BADCFE;
+    context->Intermediate_Hash[3]   = 0x10325476;
+    context->Intermediate_Hash[4]   = 0xC3D2E1F0;
+
+    context->Computed   = 0;
+    context->Corrupted  = 0;
+
+    return shaSuccess;
+}
+
+/*
+ *  SHA1Result
+ *
+ *  Description:
+ *      This function will return the 160-bit message digest into the
+ *      Message_Digest array  provided by the caller.
+ *      NOTE: The first octet of hash is stored in the 0th element,
+ *            the last octet of hash in the 19th element.
+ *
+ *  Parameters:
+ *      context: [in/out]
+ *          The context to use to calculate the SHA-1 hash.
+ *      Message_Digest: [out]
+ *          Where the digest is returned.
+ *
+ *  Returns:
+ *      sha Error Code.
+ *
+ */
+int SHA1Result( SHA1Context *context,
+                uint8_t Message_Digest[SHA1HashSize])
+{
+    int i;
+
+    if (!context || !Message_Digest)
+    {
+        return shaNull;
+    }
+
+    if (context->Corrupted)
+    {
+        return context->Corrupted;
+    }
+
+    if (!context->Computed)
+    {
+        SHA1PadMessage(context);
+        for(i=0; i<64; ++i)
+        {
+            /* message may be sensitive, clear it out */
+            context->Message_Block[i] = 0;
+        }
+        context->Length_Low = 0;    /* and clear length */
+        context->Length_High = 0;
+        context->Computed = 1;
+    }
+
+    for(i = 0; i < SHA1HashSize; ++i)
+    {
+        Message_Digest[i] = context->Intermediate_Hash[i>>2]
+                            >> 8 * ( 3 - ( i & 0x03 ) );
+    }
+
+    return shaSuccess;
+}
+
+/*
+ *  SHA1Input
+ *
+ *  Description:
+ *      This function accepts an array of octets as the next portion
+ *      of the message.
+ *
+ *  Parameters:
+ *      context: [in/out]
+ *          The SHA context to update
+ *      message_array: [in]
+ *          An array of characters representing the next portion of
+ *          the message.
+ *      length: [in]
+ *          The length of the message in message_array
+ *
+ *  Returns:
+ *      sha Error Code.
+ *
+ */
+int SHA1Input(    SHA1Context    *context,
+                  const uint8_t  *message_array,
+                  unsigned       length)
+{
+    if (!length)
+    {
+        return shaSuccess;
+    }
+
+    if (!context || !message_array)
+    {
+        return shaNull;
+    }
+
+    if (context->Computed)
+    {
+        context->Corrupted = shaStateError;
+        return shaStateError;
+    }
+
+    if (context->Corrupted)
+    {
+         return context->Corrupted;
+    }
+    while(length-- && !context->Corrupted)
+    {
+    context->Message_Block[context->Message_Block_Index++] =
+                    (*message_array & 0xFF);
+
+    context->Length_Low += 8;
+    if (context->Length_Low == 0)
+    {
+        context->Length_High++;
+        if (context->Length_High == 0)
+        {
+            /* Message is too long */
+            context->Corrupted = 1;
+        }
+    }
+
+    if (context->Message_Block_Index == 64)
+    {
+        SHA1ProcessMessageBlock(context);
+    }
+
+    message_array++;
+    }
+
+    return shaSuccess;
+}
+
+/*
+ *  SHA1ProcessMessageBlock
+ *
+ *  Description:
+ *      This function will process the next 512 bits of the message
+ *      stored in the Message_Block array.
+ *
+ *  Parameters:
+ *      None.
+ *
+ *  Returns:
+ *      Nothing.
+ *
+ *  Comments:
+ *      Many of the variable names in this code, especially the
+ *      single character names, were used because those were the
+ *      names used in the publication.
+ *
+ *
+ */
+void SHA1ProcessMessageBlock(SHA1Context *context)
+{
+    const uint32_t K[] =    {       /* Constants defined in SHA-1   */
+                            0x5A827999,
+                            0x6ED9EBA1,
+                            0x8F1BBCDC,
+                            0xCA62C1D6
+                            };
+    int           t;                 /* Loop counter                */
+    uint32_t      temp;              /* Temporary word value        */
+    uint32_t      W[80];             /* Word sequence               */
+    uint32_t      A, B, C, D, E;     /* Word buffers                */
+
+    /*
+     *  Initialize the first 16 words in the array W
+     */
+    for(t = 0; t < 16; t++)
+    {
+        W[t] = context->Message_Block[t * 4] << 24;
+        W[t] |= context->Message_Block[t * 4 + 1] << 16;
+        W[t] |= context->Message_Block[t * 4 + 2] << 8;
+        W[t] |= context->Message_Block[t * 4 + 3];
+    }
+
+    for(t = 16; t < 80; t++)
+    {
+       W[t] = SHA1CircularShift(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
+    }
+
+    A = context->Intermediate_Hash[0];
+    B = context->Intermediate_Hash[1];
+    C = context->Intermediate_Hash[2];
+    D = context->Intermediate_Hash[3];
+    E = context->Intermediate_Hash[4];
+
+    for(t = 0; t < 20; t++)
+    {
+        temp =  SHA1CircularShift(5,A) +
+                ((B & C) | ((~B) & D)) + E + W[t] + K[0];
+        E = D;
+        D = C;
+        C = SHA1CircularShift(30,B);
+        B = A;
+        A = temp;
+    }
+
+    for(t = 20; t < 40; t++)
+    {
+        temp = SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[1];
+        E = D;
+        D = C;
+        C = SHA1CircularShift(30,B);
+        B = A;
+        A = temp;
+    }
+
+    for(t = 40; t < 60; t++)
+    {
+        temp = SHA1CircularShift(5,A) +
+               ((B & C) | (B & D) | (C & D)) + E + W[t] + K[2];
+        E = D;
+        D = C;
+        C = SHA1CircularShift(30,B);
+        B = A;
+        A = temp;
+    }
+
+    for(t = 60; t < 80; t++)
+    {
+        temp = SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[3];
+        E = D;
+        D = C;
+        C = SHA1CircularShift(30,B);
+        B = A;
+        A = temp;
+    }
+
+    context->Intermediate_Hash[0] += A;
+    context->Intermediate_Hash[1] += B;
+    context->Intermediate_Hash[2] += C;
+    context->Intermediate_Hash[3] += D;
+    context->Intermediate_Hash[4] += E;
+
+    context->Message_Block_Index = 0;
+}
+
+
+/*
+ *  SHA1PadMessage
+ *
+ *  Description:
+ *      According to the standard, the message must be padded to an even
+ *      512 bits.  The first padding bit must be a '1'.  The last 64
+ *      bits represent the length of the original message.  All bits in
+ *      between should be 0.  This function will pad the message
+ *      according to those rules by filling the Message_Block array
+ *      accordingly.  It will also call the ProcessMessageBlock function
+ *      provided appropriately.  When it returns, it can be assumed that
+ *      the message digest has been computed.
+ *
+ *  Parameters:
+ *      context: [in/out]
+ *          The context to pad
+ *      ProcessMessageBlock: [in]
+ *          The appropriate SHA*ProcessMessageBlock function
+ *  Returns:
+ *      Nothing.
+ *
+ */
+
+void SHA1PadMessage(SHA1Context *context)
+{
+    /*
+     *  Check to see if the current message block is too small to hold
+     *  the initial padding bits and length.  If so, we will pad the
+     *  block, process it, and then continue padding into a second
+     *  block.
+     */
+    if (context->Message_Block_Index > 55)
+    {
+        context->Message_Block[context->Message_Block_Index++] = 0x80;
+        while(context->Message_Block_Index < 64)
+        {
+            context->Message_Block[context->Message_Block_Index++] = 0;
+        }
+
+        SHA1ProcessMessageBlock(context);
+
+        while(context->Message_Block_Index < 56)
+        {
+            context->Message_Block[context->Message_Block_Index++] = 0;
+        }
+    }
+    else
+    {
+        context->Message_Block[context->Message_Block_Index++] = 0x80;
+        while(context->Message_Block_Index < 56)
+        {
+            context->Message_Block[context->Message_Block_Index++] = 0;
+        }
+    }
+
+    /*
+     *  Store the message length as the last 8 octets
+     */
+    context->Message_Block[56] = context->Length_High >> 24;
+    context->Message_Block[57] = context->Length_High >> 16;
+    context->Message_Block[58] = context->Length_High >> 8;
+    context->Message_Block[59] = context->Length_High;
+    context->Message_Block[60] = context->Length_Low >> 24;
+    context->Message_Block[61] = context->Length_Low >> 16;
+    context->Message_Block[62] = context->Length_Low >> 8;
+    context->Message_Block[63] = context->Length_Low;
+
+    SHA1ProcessMessageBlock(context);
+}
+
+void sha1 (const char *input, int len, char *output) {
+     SHA1Context sha;
+ 
+    SHA1Reset(&sha);
+    SHA1Input(&sha, (unsigned char*)input, len);
+    SHA1Result(&sha, (uint8_t*)output);
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifi/sha1.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,78 @@
+/*
+ * source from http://www.ipa.go.jp/security/rfc/RFC3174JA.html
+ */
+/*
+ *  sha1.h
+ *
+ *  Description:
+ *      This is the header file for code which implements the Secure
+ *      Hashing Algorithm 1 as defined in FIPS PUB 180-1 published
+ *      April 17, 1995.
+ *
+ *      Many of the variable names in this code, especially the
+ *      single character names, were used because those were the names
+ *      used in the publication.
+ *
+ *      Please read the file sha1.c for more information.
+ *
+ */
+
+#ifndef _SHA1_H_
+#define _SHA1_H_
+
+#include "mbed.h"
+/*
+ * If you do not have the ISO standard stdint.h header file, then you
+ * must typdef the following:
+ *    name              meaning
+ *  uint32_t         unsigned 32 bit integer
+ *  uint8_t          unsigned 8 bit integer (i.e., unsigned char)
+ *  int_least16_t    integer of >= 16 bits
+ *
+ */
+
+#ifndef _SHA_enum_
+#define _SHA_enum_
+enum
+{
+    shaSuccess = 0,
+    shaNull,            /* Null pointer parameter */
+    shaInputTooLong,    /* input data too long */
+    shaStateError       /* called Input after Result */
+};
+#endif
+#define SHA1HashSize 20
+
+/*
+ *  This structure will hold context information for the SHA-1
+ *  hashing operation
+ */
+typedef struct SHA1Context
+{
+    uint32_t Intermediate_Hash[SHA1HashSize/4]; /* Message Digest  */
+
+    uint32_t Length_Low;            /* Message length in bits      */
+    uint32_t Length_High;           /* Message length in bits      */
+
+                               /* Index into message block array   */
+    int_least16_t Message_Block_Index;
+    uint8_t Message_Block[64];      /* 512-bit message blocks      */
+
+    int Computed;               /* Is the digest computed?         */
+    int Corrupted;             /* Is the message digest corrupted? */
+} SHA1Context;
+
+/*
+ *  Function Prototypes
+ */
+
+int SHA1Reset(  SHA1Context *);
+int SHA1Input(  SHA1Context *,
+                const uint8_t *,
+                unsigned int);
+int SHA1Result( SHA1Context *,
+                uint8_t Message_Digest[SHA1HashSize]);
+
+
+void sha1 (const char *input, int len, char *output);
+#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifiInterface.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,59 @@
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+
+#include "GSwifiInterface.h"
+
+GSwifiInterface::GSwifiInterface( PinName tx, PinName rx, PinName cts, PinName rts, PinName reset, PinName alarm, int baud) :
+    GSwifi(tx, rx, cts, rts, reset, alarm, baud)
+{
+}
+
+int GSwifiInterface::init(const char* name)
+{
+    return setAddress(name);
+}
+
+int GSwifiInterface::init(const char* ip, const char* netmask, const char* gateway, const char* name)
+{
+    return setAddress(ip, netmask, gateway, name);
+}
+
+int GSwifiInterface::connect(Security sec, const char* ssid, const char* phrase, WiFiMode mode)
+{
+    setSsid(sec, ssid, phrase);
+    switch (mode) {
+    case WM_INFRASTRUCTURE:
+        return join();
+    case WM_ADHOCK:
+        return adhock();
+    case WM_LIMITEDAP:
+        return limitedap();
+    }
+    return -1;
+}
+
+int GSwifiInterface::disconnect()
+{
+    return GSwifi::dissociate();
+}
+
+char * GSwifiInterface::getMACAddress()
+{
+    return _state.mac;
+}
+
+char * GSwifiInterface::getIPAddress()
+{
+    return _state.ip;
+}
+
+char * GSwifiInterface::getGateway()
+{
+    return _state.gateway;
+}
+
+char * GSwifiInterface::getNetworkMask()
+{
+    return _state.netmask;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/GSwifiInterface.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,107 @@
+/* GSwifiInterface.h */
+/* EthernetInterface.h */
+/* 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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+ 
+#ifndef GSWIFIINTERFACE_H_
+#define GSWIFIINTERFACE_H_
+
+#include "GSwifi.h"
+
+ /** Interface using GSwifi to connect to an IP-based network
+ *
+ */
+class GSwifiInterface: public GSwifi {
+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 cts mbed pin to use for cts line of Serial interface
+    * \param rts mbed pin to use for rts line of Serial interface
+    * \param reset reset pin of the wifi module
+    * \param alarm alarm pin of the wifi module (default: NC)
+    * \param baud baud rate of Serial interface (default: 9600)
+    */
+  GSwifiInterface(PinName tx, PinName rx, PinName cts, PinName rts, PinName reset, PinName alarm = NC, int baud = 9600);
+
+  /** 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(const char* name = NULL); //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, const char* name = NULL);
+
+  /** Connect
+  * Bring the interface up, start DHCP if needed.
+  * \param sec the Wi-Fi security type
+  * \param ssid the Wi-Fi SSID
+  * \param phrase the Wi-Fi passphrase or security key
+  * \param mode the Wi-Fi mode
+  * \return 0 on success, a negative number on failure
+  */
+  int connect(Security sec, const char* ssid, const char* phrase, WiFiMode mode = WM_INFRASTRUCTURE);
+  
+  /** Disconnect
+  * Bring the interface down
+  * \return 0 on success, a negative number on failure
+  */
+  int disconnect();
+  
+  /** Get the MAC address of your Ethernet interface
+   * \return a pointer to a string containing the MAC address
+   */
+  char* getMACAddress();
+  
+  /** Get the IP address of your Ethernet interface
+   * \return a pointer to a string containing the IP address
+   */
+  char* getIPAddress();
+
+  /** Get the Gateway address of your Ethernet interface
+   * \return a pointer to a string containing the Gateway address
+   */
+  char* getGateway();
+ 
+  /** Get the Network mask of your Ethernet interface
+   * \return a pointer to a string containing the Network mask
+   */
+  char* getNetworkMask();
+
+};
+
+#include "TCPSocketConnection.h"
+#include "TCPSocketServer.h"
+
+#include "Endpoint.h"
+#include "UDPSocket.h"
+
+#endif /* GSWIFIINTERFACE_H_ */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Helper/def.h	Wed Nov 27 08:18:45 2013 +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/GSwifiInterface/Socket/Endpoint.cpp	Wed Nov 27 08:18:45 2013 +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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+#include "Socket/Socket.h"
+#include "Socket/Endpoint.h"
+#include <cstring>
+
+using std::memset;
+
+Endpoint::Endpoint()  {
+    _ewifi = GSwifi::getInstance();
+    if (_ewifi == 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
+    _port = port;
+    return _ewifi->getHostByName(host, _ipAddress);
+}
+
+char* Endpoint::get_address() {
+    return _ipAddress;
+}
+
+int   Endpoint::get_port() {
+    return _port;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Socket/Endpoint.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,68 @@
+/* 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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+#ifndef ENDPOINT_H
+#define ENDPOINT_H
+
+#include "GSwifi.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;
+    GSwifi * _ewifi;
+};
+
+#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Socket/Socket.cpp	Wed Nov 27 08:18:45 2013 +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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+ 
+#include "Socket.h"
+#include <cstring>
+
+Socket::Socket() {
+    _wifi = GSwifi::getInstance();
+    if (_wifi == NULL)
+        error("Socket constructor error: no wifly instance available!\r\n");
+    _blocking = true;
+    _timeout = 1500;
+
+    _server = false;
+    _cid = -1;
+    _port = 0;
+}
+
+void Socket::set_blocking(bool blocking, unsigned int timeout) {
+    _blocking = blocking;
+    _timeout = timeout;
+}
+
+int Socket::close() {
+    if (_cid < 0) return 0;
+
+    _wifi->close(_cid);
+    _cid = -1;
+    return 0;
+}
+
+Socket::~Socket() {
+    close(); //Don't want to leak
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Socket/Socket.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,58 @@
+/* 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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+#ifndef SOCKET_H_
+#define SOCKET_H_
+
+#include "GSwifi.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;
+    GSwifi * _wifi;
+
+    bool _server;
+    int _cid;
+    int _port;
+};
+
+
+#endif /* SOCKET_H_ */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Socket/TCPSocketConnection.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,136 @@
+/* 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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+
+#include "TCPSocketConnection.h"
+#include <algorithm>
+
+TCPSocketConnection::TCPSocketConnection() {}
+
+int TCPSocketConnection::connect(const char* host, const int port)
+{  
+    if (set_address(host, port) != 0) return -1;
+
+    _server = false;
+    _cid = _wifi->open(GSwifi::PROTO_TCP, get_address(), get_port());
+    if (_cid < 0) return -1;
+
+    return 0;
+}
+
+bool TCPSocketConnection::is_connected(void)
+{
+    bool _is_connected = _wifi->isConnected(_cid);
+    if (!_is_connected) _cid = -1;
+    return _is_connected;
+}
+
+int TCPSocketConnection::send(char* data, int length)
+{
+    if (_cid < 0 || !is_connected()) return -1;
+
+    // TCP Client/Server
+    return _wifi->send(_cid, data, length);
+}
+
+// -1 if unsuccessful, else number of bytes written
+int TCPSocketConnection::send_all(char* data, int length)
+{
+    Timer tmr;
+    int idx = 0;
+
+    if (_cid < 0 || !is_connected()) return -1;
+
+    tmr.start();
+    // TCP Client/Server
+    while ((tmr.read_ms() < _timeout) || _blocking) {
+
+        idx += _wifi->send(_cid, &data[idx], length - idx);
+        if (idx < 0) return -1;
+
+        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 (_cid < 0 || !is_connected()) return -1;
+
+    if (_blocking) {
+        tmr.start();
+        while (time < _timeout + 20) {
+            if (_wifi->readable(_cid)) {
+                DBG("receive readable");
+                break;
+            }
+            time = tmr.read_ms();
+        }
+        if (time >= _timeout + 20) {
+            DBG("receive timeout");
+            return 0;
+        }
+    }
+
+    int nb_available = _wifi->recv(_cid, data, length);
+
+    return nb_available;
+}
+
+
+// -1 if unsuccessful, else number of bytes received
+int TCPSocketConnection::receive_all(char* data, int length)
+{
+    Timer tmr;
+    int idx = 0;
+    int time = -1;
+
+    if (_cid < 0 || !is_connected()) return -1;
+
+    tmr.start();
+    
+    while (time < _timeout || _blocking) {
+
+        idx += _wifi->recv(_cid, &data[idx], length - idx);
+        if (idx < 0) return -1;
+
+        if (idx == length)
+            break;
+
+        time = tmr.read_ms();
+    }
+
+    return (idx == 0) ? -1 : idx;
+}
+
+void TCPSocketConnection::acceptCID (int cid) {
+    char *ip;
+    int port;
+    _server = true;
+    _cid = cid;
+    if (!_wifi->getRemote(_cid, &ip, &port)) {
+        set_address(ip, port);
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Socket/TCPSocketConnection.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,81 @@
+/* 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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+
+#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);
+
+    void acceptCID (int cid);
+};
+
+#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Socket/TCPSocketServer.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,60 @@
+/* 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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+
+#include "TCPSocketServer.h"
+#include <string>
+
+TCPSocketServer::TCPSocketServer() {}
+
+// Server initialization
+int TCPSocketServer::bind(int port) {
+    _port = port;
+    return 0;
+}
+
+int TCPSocketServer::listen(int backlog) {
+    _server = true;
+    if (_cid < 0) {
+        // Socket open
+        _server = false;
+        _cid = _wifi->listen(GSwifi::PROTO_TCP, _port);
+        if (_cid < 0) return -1;
+    }
+
+    if (backlog != 1)
+        return -1;
+    return 0;
+}
+
+
+int TCPSocketServer::accept(TCPSocketConnection& connection) {
+    int acid = -1;
+    while (1) {
+        while (acid < 0) {
+            acid = _wifi->accept(_cid);
+        }
+        if (acid >= 0) {
+            connection.acceptCID(acid);
+            return 0;
+        }
+    }
+    return -1;
+}
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Socket/TCPSocketServer.h	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,55 @@
+/* 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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+#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/GSwifiInterface/Socket/UDPSocket.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -0,0 +1,140 @@
+/* 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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+
+#include "UDPSocket.h"
+
+#include <string>
+#include <algorithm>
+
+UDPSocket::UDPSocket()
+{
+    endpoint_connected = false;
+}
+
+int UDPSocket::init(void)
+{
+    _server = false;
+    return 0;
+}
+
+// Server initialization
+int UDPSocket::bind(int port)
+{
+    _port = port;
+    _server = true;
+    return 0;
+}
+
+// -1 if unsuccessful, else number of bytes written
+int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
+{
+    Timer tmr;
+    int idx = 0;
+
+    if (_cid < 0 && _wifi->isAssociated()) {
+        // Socket open
+        if (_server) {
+            _cid = _wifi->listen(GSwifi::PROTO_UDP, _port);
+        } else {
+            _cid = _wifi->open(GSwifi::PROTO_UDP, remote.get_address(), remote.get_port(), _port);
+        }
+        if (_cid < 0) return -1;
+    }
+
+    tmr.start();
+
+    while ((tmr.read_ms() < _timeout) || _blocking) {
+
+        if (_server) {
+            idx += _wifi->sendto(_cid, packet, length, remote.get_address(), remote.get_port());
+        } else {
+            idx += _wifi->send(_cid, packet, length);
+        }
+        if (idx < 0) {
+            if (!_wifi->isConnected(_cid)) _cid = -1;
+        }
+
+        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 time = -1;
+    char ip[16];
+    int port;
+
+    if (_cid < 0 && _wifi->isAssociated()) {
+        // Socket open
+        if (_server) {
+            _cid = _wifi->listen(GSwifi::PROTO_UDP, _port);
+        } else {
+            _cid = _wifi->open(GSwifi::PROTO_UDP, remote.get_address(), remote.get_port(), _port);
+        }
+        if (_cid < 0) return -1;
+    }
+
+    if (_blocking) {
+        tmr.start();
+        while (time < _timeout + 20) {
+            if (_wifi->readable(_cid)) {
+                break;
+            }
+            time = tmr.read_ms();
+        }
+        if (time >= _timeout + 20) {
+            return -1;
+        }
+    }
+
+    tmr.reset();
+    time = -1;
+    tmr.start();
+
+    while (time < _timeout) {
+
+        if (_server) {
+            idx += _wifi->recvfrom(_cid, &buffer[idx], length - idx, ip, &port);
+        } else {
+            idx += _wifi->recv(_cid, &buffer[idx], length - idx);
+        }
+        if (idx < 0) {
+            if (!_wifi->isConnected(_cid)) _cid = -1;
+            return -1;
+        }
+
+        if (idx == length) {
+            break;
+        }
+        
+        time = tmr.read_ms();
+    }
+
+    if (_server) {
+        remote.set_address(ip, port);
+    }
+    return (idx == 0) ? -1 : idx;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GSwifiInterface/Socket/UDPSocket.h	Wed Nov 27 08:18:45 2013 +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.
+ */
+/* Copyright (C) 2013 gsfan, MIT License
+ *  port to the GainSpan Wi-FI module GS1011
+ */
+
+#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 endpoint_connected;
+    
+};
+
+#include "def.h"
+
+#endif
--- a/main.cpp	Tue Aug 20 04:34:57 2013 +0000
+++ b/main.cpp	Wed Nov 27 08:18:45 2013 +0000
@@ -5,7 +5,7 @@
 #define INTERVAL 60
 #define CT (3000 / 330 / 0.98)
 
-#define SECURE GSwifi::GSSEC_WPA_PSK
+#define SECURE GSwifi::SEC_WPA_PSK
 #define SSID "SSID"
 #define PASS "passkey"
 
@@ -13,8 +13,8 @@
 #define FEED_ID "000000"
 #define API_KEY "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
 
-//GSwifi gs(p13, p14, p20); // LPC1768, LPC11U24
-GSwifi gs(PTD3, PTD2, PTA13); // FRDM KL25Z
+//GSwifi gs(p13, p14, NC, NC, p20); // LPC1768, LPC11U24
+GSwifi gs(PTD3, PTD2, NC, NC, PTA13); // FRDM KL25Z
 Serial pc(USBTX, USBRX);
 DigitalOut led1(LED1), led2(LED2), led3(LED3);
 AnalogIn ad0(PTB0), ad1(PTB3), ad2(PTC2);
@@ -22,8 +22,7 @@
 float ref;
 volatile int count = 0;
 volatile double sum1 = 0, sum2 = 0;
-volatile int busy = 1;
-volatile int status = 1;
+volatile int busy = 1, status = 1, timeout = 0;
 
 
 extern "C" void HardFault_Handler() {
@@ -34,13 +33,12 @@
 
 int xively (char *data) {
   int i;
-  Host host;
   int cid;
   char buf[128];
+  char ip[17];
 
-  host.setName(FEED_HOST);
-  host.setPort(80);
-  cid = gs.open(host, GSwifi::GSPROT_TCP);
+  if (gs.getHostByName(FEED_HOST, ip)) return -1;
+  cid = gs.open(GSwifi::PROTO_TCP, ip, 80);
   if (cid < 0) return -1;
   
   sprintf(buf, "PUT /v2/feeds/" FEED_ID ".csv HTTP/1.1\r\n");
@@ -68,17 +66,27 @@
 }
 
 void isr_ticker () {
-    float a1, a2;
+    static int w = 0, x = 0;
+    double a1, a2;
 
-    if (status) {
-        status ++;
-        if (status & 0x200) {
-            led1 = ! led1;
+    w ++;
+    if (w >= (SAMPLES / 10)) {
+        if (status) {
+            led1 = x < 5 ? 0 : 1;
+        } else {
+            led1 = 1;
+        }
+
+        w = 0;
+        x ++;
+        if (x >= 10) {
+            x = 0;
+            led1 = (timeout & 1) ? 0 : 1;
+            if (timeout) timeout --;
         }
     }
 
     if (busy) return;
-
     a1 = ad1 - ref;
     a2 = ad2 - ref;
     sum1 += (a1 * a1);
@@ -87,37 +95,38 @@
 }
 
 int main () {
-    IpAddr ipaddr, netmask, gateway, nameserver;
+    char ipaddr[17], netmask[17], gateway[17];
     Ticker ticker;
-    Timer timer;
     int num = 0;
     char buf[128];
 
-    led1 = led2 = led3 = 1;
+    led1 = 0;
+    led2 = led3 = 1;
     pc.baud(115200);
     pc.printf("Xively\r\n");
     ticker.attach(isr_ticker, 1.0f / SAMPLES);
 
     pc.printf("connect\r\n");
     NVIC_SetPriority(UART2_IRQn, 1);
-    if (gs.connect(SECURE, SSID, PASS, 1, 60)) {
+    gs.setAddress("wattmeter");
+    gs.setSsid(SECURE, SSID, PASS);
+    if (gs.join()) {
         return -1;
     }
-    gs.getAddress(ipaddr, netmask, gateway, nameserver);
-    pc.printf("ip %d.%d.%d.%d\r\n", ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3]);
+    gs.getAddress(ipaddr, netmask, gateway);
+    pc.printf("ip %s\r\n", ipaddr);
 
     ref = ad0;
     status = 0;
     busy = 0;
-    led1 = 0;
+    timeout = 2;
 
-    timer.start();
     for (;;) {
         gs.poll();
 
-        if (timer.read() >= INTERVAL) {
-            float a1, a2;
-            float f1, f2;
+        if (timeout == 0) {
+            double a1, a2;
+            double f1, f2;
             int c;
 
             busy = 1;
@@ -127,7 +136,7 @@
             count = 0;
             sum1 = 0;
             sum2 = 0;
-            timer.reset();
+            timeout = INTERVAL;
             num ++;
             ref = ad0;
             if (c) {
@@ -146,7 +155,7 @@
 
                 led2 = 0;
                 led3 = 1;
-                sprintf(buf, "L1,%0.3f\r\nL2,%0.3f\r\nUptime,%d\r\n", f1, f2, num);
+                sprintf(buf, "Total,%0.0f\r\nL1,%0.2f\r\nL2,%0.2f\r\nUptime,%d\r\n", (f1 + f2) * 100, f1, f2, num);
                 if (xively(buf)) led3 = 0;
                 pc.printf("L1=%0.3f, L2=%0.3f, Uptime=%d, ref=%0.2f\r\n", f1, f2, num, ref);
                 led2 = 1;
--- a/mbed.bld	Tue Aug 20 04:34:57 2013 +0000
+++ b/mbed.bld	Wed Nov 27 08:18:45 2013 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/9c8f0e3462fb
\ No newline at end of file
+http://mbed.org/users/mbed_official/code/mbed/builds/f37f3b9c9f0b
\ No newline at end of file