David Santana
https://developer.mbed.org/users/ds4279/code/WiflySocket/
Revision 0:374a8a31f262, committed 2017-02-22
- Comitter:
- ds4279
- Date:
- Wed Feb 22 18:49:17 2017 +0000
- Commit message:
- Added modified library
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/CBuffer.h Wed Feb 22 18:49:17 2017 +0000
@@ -0,0 +1,76 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef CIRCBUFFER_H_
+#define CIRCBUFFER_H_
+
+template <class T>
+class CircBuffer {
+public:
+ CircBuffer(int length) {
+ write = 0;
+ read = 0;
+ size = length + 1;
+ buf = (T *)malloc(size * sizeof(T));
+ };
+
+ bool isFull() {
+ return (((write + 1) % size) == read);
+ };
+
+ bool isEmpty() {
+ return (read == write);
+ };
+
+ void queue(T k) {
+ if (isFull()) {
+ read++;
+ read %= size;
+ }
+ buf[write++] = k;
+ write %= size;
+ }
+
+ void flush() {
+ read = 0;
+ write = 0;
+ }
+
+
+ uint32_t available() {
+ return (write >= read) ? write - read : size - read + write;
+ };
+
+ bool dequeue(T * c) {
+ bool empty = isEmpty();
+ if (!empty) {
+ *c = buf[read++];
+ read %= size;
+ }
+ return(!empty);
+ };
+
+private:
+ volatile uint32_t write;
+ volatile uint32_t read;
+ uint32_t size;
+ T * buf;
+};
+
+#endif
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Wifly.cpp Wed Feb 22 18:49:17 2017 +0000
@@ -0,0 +1,1014 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "mbed.h"
+
+#include "headerStuff.h"
+#include "Wifly.h"
+#include <string>
+#include <algorithm>
+
+//extern void sendToDisplay(int cmd,int canID,char *canMsg);
+extern Serial myDebug;
+
+//Debug is disabled by default
+#if (0 && !defined(TARGET_LPC11U24))
+#define DBG(x, ...) std::printf("[Wifly : DBG]"x"\r\n", ##__VA_ARGS__);
+#define WARN(x, ...) std::printf("[Wifly : WARN]"x"\r\n", ##__VA_ARGS__);
+#define ERR(x, ...) std::printf("[Wifly : ERR]"x"\r\n", ##__VA_ARGS__);
+#else
+#define DBG(x, ...)
+#define WARN(x, ...)
+#define ERR(x, ...)
+#endif
+
+#if !defined(TARGET_LPC11U24)
+#define INFO(x, ...) printf("[Wifly : INFO]"x"\r\n", ##__VA_ARGS__);
+#else
+#define INFO(x, ...)
+#endif
+
+#define MAX_TRY_JOIN 3
+
+/////////////////////////////////////////
+///Make this object visible to the other
+///classes. UDPSocket, etc...
+Wifly * Wifly::inst;
+
+ // PB_4/D5/GPIO6 short pad P6 on shield
+Wifly::Wifly( PinName tx, PinName rx, PinName _reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec):
+ wifiSer(tx, rx,512,2), reset_pin(_reset), tcp_status(tcp_status)//, buf_wifly(256)
+ //PinName tx, PinName rx, uint32_t buf_size = 512, uint32_t tx_multiple = 4
+{
+ memset(&state, 0, sizeof(state));
+ state.sec = sec;
+
+ ///////////////////////////////////////////
+ ///The default baud rate 9600. Once change
+ ///It will never have to be changed again.
+ wifiSer.baud(19200);
+ wifiSer.format(8,Serial::None,1);
+
+ // change all ' ' in '$' in the ssid and the passphrase
+ strcpy(this->ssid, ssid);
+ for (int i = 0; i < strlen(ssid); i++)
+ {
+ if (this->ssid[i] == ' ')
+ this->ssid[i] = '$';
+ }
+
+ strcpy(this->phrase, phrase);
+ for (int i = 0; i < strlen(phrase); i++)
+ {
+ if (this->phrase[i] == ' ')
+ this->phrase[i] = '$';
+ }
+
+ strcpy(this->staticIP,"0.0.0.0");
+ inst = this; //make this class visible to other classes
+ // attach_rx(false);
+ state.cmd_mode = false;
+ state.dhcp = true; //assume initial connection DHCP
+}
+
+void Wifly::getDHCPhostInfo(char *SSID, char *passPhrase, int &auth)
+{
+ auth = state.sec;
+ strcpy(SSID,this->ssid);
+ strcpy(passPhrase,this->phrase);
+}
+
+bool Wifly::init()
+{
+
+ //set uart mode <value>
+ //Bit Position Function
+ //0 NOECHO - disables echo of RX data while in
+ // command mode
+ //1 DATA TRIGGER makes connection on RX data
+ //2 Reserved for future use
+ //3 Enable Sleep on RX BREAK signal
+ //4 UART RX data buffer. See note below for details*
+
+ //no echo: set uart mode <value>
+//myDebug.printf("set u m 1\r");
+ if (!sendCommand("set u m 1\r", "AOK",NULL,1000))
+ {
+ myDebug.printf("Error: set u m 1\n");
+ } //
+ //continue;
+wait_ms(10);
+//myDebug.printf("set c t 30\r");
+ // set time: set comm timer <30ms>
+ if (!sendCommand("set c t 30\r", "AOK",NULL,1000)) //
+ {
+ myDebug.printf("Error: set c t 30\n");
+ }
+
+wait_ms(10);
+//myDebug.printf("set c s 1024\r");
+ // set size
+ if (!sendCommand("set c s 1024\r", "AOK",NULL,1000))
+ {
+ myDebug.printf("Error: set c s 1024\n");
+ }
+
+
+wait_ms(10);
+//myDebug.printf("set s i 0x40\r");
+ // red led on when tcp connection active
+ if (!sendCommand("set s i 0x40\r", "AOK",NULL,1000))
+ {
+ myDebug.printf("Error: set s i 0x40\n");
+ }
+
+ wait_ms(100);
+ // Do not auto auto
+
+ if (!sendCommand("set w j 0\r", "AOK",NULL,500) )
+ {
+ myDebug.printf("Error: set w j 0\n");
+ }
+ //continue;
+wait_ms(10);
+ //For the RN module to accept both TCP and UDP, set bits 1 and 2 (value = 3).
+ if (!sendCommand("set ip p 3\r", "AOK",NULL,500) )
+ {
+ myDebug.printf("Error: set w j 0\n");
+ }
+
+/*
+wait_ms(10);
+ //uart baudrate
+ if (!sendCommand("set uart baud 19200\r", "AOK",NULL,500) )
+ {
+ myDebug.printf("Error: set w j 0\n");
+ }
+ */
+ if (!sendCommand("save\r", "Stor"))
+ {
+ // sendToDisplay(RS485Cmd,0,"Error: save, Stor\n");
+ }
+
+
+wait_ms(10);
+
+
+ // sendCommand("reboot\r", "ree") ;
+ // exitCmdMode(); //leave command mode
+
+myDebug.printf("sending Reboot\n");
+ //cmd, ack, res, int timeout
+ if(sendCommand("reboot\r", "Reboot",NULL,5000,false))
+ {
+ //myDebug.printf("DHCP=ON\n");
+ }
+ else
+ {
+ //myDebug.printf("DHCP Error\n");
+
+ }
+ state.cmd_mode = false;
+ return true;
+}
+
+void Wifly::setConnectionType(bool DHCP_STATIC)
+{
+ state.dhcp = DHCP_STATIC;
+}
+
+bool Wifly::join(const char *ssid, const char *phrase, int auth)
+{
+ char cmd[200];
+ unsigned char retries = 3;
+
+ //////////////////////////////////////
+ ///auth set wlan auth <value>
+ sprintf(cmd, "set w a %d\r", auth);
+ sendCommand(cmd, "AOK");
+
+
+wait_ms(10);
+ //////////////////////////////////////
+ ///Pass Phrase
+ sprintf(cmd, "set w p %s\r", phrase); //Returns 450ms
+ sendCommand(cmd, "AOK");
+
+
+
+
+ //key step
+/* if (state.sec != NONE)
+ {
+ myDebug.printf("state.sec != NONE\n");
+ //Create command string
+ if (state.sec == WPA)
+ {
+ ///////////////////////////////////////////
+ ///set wlan phrase <string>
+ myDebug.printf("set WPA\n");
+ sprintf(cmd, "set w p %s\r", phrase);
+ }
+ else if (state.sec == WEP_128)
+ {
+ myDebug.printf("set WEP\n");
+ sprintf(cmd, "set w k %s\r", phrase);
+ }
+
+ if (!sendCommand(cmd, "AOK")) //returns 500ms
+ {
+ }
+ }
+ */
+
+ wait_ms(10);
+
+ if(state.dhcp)
+ {
+ state.dhcp = true;
+ myDebug.printf("Connect DHCP...\n");
+ sendCommand("set ip dhcp 1", "AOK",NULL,1000);
+ wait_ms(10);
+ sprintf(cmd, "join %s\r", ssid); //join the SSID network
+
+ while(retries)
+ {
+ if( sendCommand(cmd, "DHCP=ON",NULL,10000,true) )
+ {
+ exitCmdMode(); //exit command mode
+ return true;
+ }
+ else{
+ retries--;
+ //myDebug.printf("Trying to JOIN...\n");
+ }
+
+ };
+ }
+ else //setup for static IP
+ {
+ //myDebug.printf("Connect Static IP\n");
+ sprintf(cmd, "set ip a %s\r", this->staticIP);
+ sendCommand(cmd, "AOK",NULL,2000);
+
+ sendCommand("set ip dhcp 0", "AOK",NULL,2000);
+
+ state.dhcp = false;
+ retries = 3;
+
+ sprintf(cmd, "join %s\r", ssid); //join the SSID network
+ while(retries)
+ {
+ if( sendCommand(cmd, "Associated",NULL,10000,true) )
+ {
+ exitCmdMode(); //leave command mode
+ return true;
+ }
+ else{
+ retries--;
+ myDebug.printf("Trying to JOIN Static...\n");
+ }
+ };
+ }
+
+ exitCmdMode(); //leave command mode
+
+ return false; //could not connect
+}
+/////////////////////////////////////////
+//::join()
+//
+//The SSID and pass pharse are saved
+//when the constructor is called
+////////////////////////////////////////
+bool Wifly::join()
+{
+ char cmd[200];
+ unsigned char retries = 3;
+
+ //////////////////////////////////////
+ ///auth set wlan auth <value>
+ sprintf(cmd, "set w a %d\r", state.sec);
+ sendCommand(cmd, "AOK");
+wait_ms(10);
+
+ sprintf(cmd, "set w p %s\r", this->phrase); //Returns 450ms
+ myDebug.printf(cmd);
+ sendCommand(cmd, "AOK");
+wait_ms(10);
+ sendCommand("set ip dhcp 1", "AOK");
+wait_ms(10);
+ //key step
+/* if (state.sec != NONE)
+ {
+ myDebug.printf("state.sec != NONE\n");
+ //Create command string
+ if (state.sec == WPA)
+ {
+ ///////////////////////////////////////////
+ ///set wlan phrase <string>
+ myDebug.printf("set WPA\n");
+ sprintf(cmd, "set w p %s\r", phrase);
+ }
+ else if (state.sec == WEP_128)
+ {
+ myDebug.printf("set WEP\n");
+ sprintf(cmd, "set w k %s\r", phrase);
+ }
+
+ if (!sendCommand(cmd, "AOK")) //returns 500ms
+ {
+ }
+ }
+ */
+
+wait_ms(10);
+
+ if(state.dhcp)
+ {
+ myDebug.printf("Connect DHCP...\n");
+ sprintf(cmd, "join %s\r", this->ssid);
+
+ state.dhcp = true;
+ while(retries)
+ {
+ if( sendCommand(cmd, "DHCP=ON",NULL,10000,true) )
+ {
+ exitCmdMode(); //leave command mode
+ return true;
+ }
+ else{
+ retries--;
+ myDebug.printf("Trying to JOIN...\n");
+ }
+
+ };
+ }
+ else //setup for static IP
+ {
+ //myDebug.printf("Connect Static IP\n");
+ sprintf(cmd, "set ip a %s\r", this->staticIP);
+ sendCommand(cmd, "AOK",NULL,2000);
+
+ sendCommand("set ip dhcp 0", "AOK",NULL,2000);
+
+ state.dhcp = false;
+ retries = 3;
+
+ sprintf(cmd, "join %s\r", ssid); //join the SSID network
+ while(retries)
+ {
+ if( sendCommand(cmd, "Associated",NULL,10000,true) )
+ {
+ exitCmdMode(); //leave command mode
+ return true;
+ }
+ else{
+ retries--;
+ myDebug.printf("Trying to JOIN Static...\n");
+ }
+ };
+ }
+
+ exitCmdMode(); //leave command mode
+
+ return false;
+}
+
+void Wifly::enableDHCP(bool DHCP_STATIC)
+{
+ state.dhcp = DHCP_STATIC;
+}
+
+void Wifly::setStaticIP(const char *staticIP)
+{
+ char buffer[100];
+ strcpy(this->staticIP,staticIP);
+ sprintf(buffer,"IPset---: %s\n",this->staticIP);
+ myDebug.printf(buffer);
+
+}
+
+/////////////////////////////////////////
+//::setBaudRate()
+//
+//Baudrate can be change on the fly
+//Once the command is sent the RN-171
+//will exit the command mode
+bool Wifly::setBaudRate(int baud)
+{
+ char cmd[60];
+ sprintf(cmd, "set u b %i\r", baud);
+ if ( !sendCommand(cmd, "AOK") )
+ {
+ return false;
+ }
+
+ //Automatically exits command mode
+ state.cmd_mode = false;
+ return true;
+}
+
+bool Wifly::setProtocol(Protocol p)
+{
+ // use udp auto pairing
+ char cmd[20];
+ sprintf(cmd, "set i p %d\r", p);
+ if (!sendCommand(cmd, "AOK"))
+ return false;
+
+ switch(p) {
+ case TCP:
+ // set ip flags: tcp retry enabled
+ if (!sendCommand("set i f 0x07\r", "AOK"))
+ return false;
+ break;
+ case UDP:
+ // set ip flags: udp auto pairing enabled
+ if (!sendCommand("set i h 0.0.0.0\r", "AOK"))
+ return false;
+ if (!sendCommand("set i f 0x40\r", "AOK"))
+ return false;
+ break;
+ }
+ state.proto = p;
+ return true;
+}
+
+char * Wifly::getStringSecurity()
+{
+ switch(state.sec) {
+ case NONE:
+ return "NONE";
+ case WEP_128:
+ return "WEP_128";
+ case WPA:
+ return "WPA";
+ }
+ return "UNKNOWN";
+}
+
+bool Wifly::connect(const char * host, int port)
+{
+ char rcv[20];
+ char cmd[20];
+
+ // try to open
+ sprintf(cmd, "open %s %d\r", host, port);
+ if (sendCommand(cmd, "OPEN", NULL, 10000)) {
+ state.tcp = true;
+ state.cmd_mode = false;
+ return true;
+ }
+
+ // if failed, retry and parse the response
+ if (sendCommand(cmd, NULL, rcv, 5000)) {
+ if (strstr(rcv, "OPEN") == NULL) {
+ if (strstr(rcv, "Connected") != NULL) {
+ wait(0.25);
+ if (!sendCommand("close\r", "CLOS"))
+ return false;
+ wait(0.25);
+ if (!sendCommand(cmd, "OPEN", NULL, 10000))
+ return false;
+ } else {
+ return false;
+ }
+ }
+ } else {
+ return false;
+ }
+
+ state.tcp = true;
+ state.cmd_mode = false;
+
+ return true;
+}
+
+
+bool Wifly::gethostbyname(const char * host, char * ip)
+{
+ string h = host;
+ char cmd[30], rcv[100];
+ int l = 0;
+ char * point;
+ int nb_digits = 0;
+
+ // no dns needed
+ int pos = h.find(".");
+ if (pos != string::npos) {
+ string sub = h.substr(0, h.find("."));
+ nb_digits = atoi(sub.c_str());
+ }
+ //printf("substrL %s\r\n", sub.c_str());
+ if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) {
+ strcpy(ip, host);
+ }
+ // dns needed
+ else {
+ nb_digits = 0;
+ sprintf(cmd, "lookup %s\r", host);
+ if (!sendCommand(cmd, NULL, rcv))
+ return false;
+
+ // look for the ip address
+ char * begin = strstr(rcv, "=") + 1;
+ for (int i = 0; i < 3; i++) {
+ point = strstr(begin + l, ".");
+ DBG("str: %s", begin + l);
+ l += point - (begin + l) + 1;
+ }
+ DBG("str: %s", begin + l);
+ while(*(begin + l + nb_digits) >= '0' && *(begin + l + nb_digits) <= '9') {
+ DBG("digit: %c", *(begin + l + nb_digits));
+ nb_digits++;
+ }
+ memcpy(ip, begin, l + nb_digits);
+ ip[l+nb_digits] = 0;
+ DBG("ip from dns: %s", ip);
+ }
+ return true;
+}
+
+
+void Wifly::flush()
+{
+ while (wifiSer.readable())
+ wifiSer.getc();
+}
+
+////////////////////////////////////////////////////////////
+//sendCommand()
+//
+//
+//
+//
+//
+//
+////////////////////////////////////////////////////////////
+bool Wifly::sendCommand(const char * cmd, const char * ack, char * res, int timeout, bool DHCPconn)
+{
+ if (!state.cmd_mode) {
+ cmdMode();
+ }
+ // Expected res strRet
+ switch( this->sendString(cmd, strlen(cmd), ack, res, timeout, DHCPconn) )
+ {
+ case 0:
+ //myDebug.printf("...OK\n");
+ return true;
+
+ case 1:
+ // myDebug.printf("Time out\n"); //do a retry
+ // exitCmdMode();
+ return false;
+ case 2: //DHCP connected
+ state.associated = true;
+ myDebug.printf("DHCP CONNECTED\n");
+ exitCmdMode();
+ return true;
+
+ case 3:
+ myDebug.printf("DHCP Failed\n"); //do a retry
+ // exitCmdMode();
+ return false;
+
+ default:
+ exitCmdMode();
+ return false;
+
+
+ };
+ return false;
+}
+
+bool Wifly::cmdMode()
+{
+ // if already in cmd mode, return
+ if (state.cmd_mode)
+ return true;
+
+ if ( this->sendString("$$$", 3, "CMD") == -1)
+ {
+ ERR("cannot enter in cmd mode\r\n");
+ exitCmdMode();
+ return false;
+ }
+ state.cmd_mode = true;
+ return true;
+}
+
+bool Wifly::disconnect()
+{
+ // if already disconnected, return
+ if (!state.associated)
+ return true;
+
+ if (!sendCommand("leave\r", "DeAuth"))
+ return false;
+ exitCmdMode();
+
+ state.associated = false;
+ return true;
+
+}
+
+bool Wifly::is_connected()
+{
+ return (tcp_status.read() == 1) ? true : false;
+}
+
+
+bool Wifly::reset(bool howIreset)
+{
+ if(howIreset)
+ {
+ reset_pin = 0;
+ wait(0.2);
+ reset_pin = 1;
+ wait(0.2);
+ }
+ else
+ {
+ // sendToDisplay(RS485Cmd,0,"software Reset\n");
+ sendCommand("factory R\r", "Defaults");
+ wait_ms(10);
+ sendCommand("save\r", "Stor");
+
+ return true;
+ }
+
+ return true;
+
+}
+
+bool Wifly::reboot()
+{
+ // if already in cmd mode, return
+ if ( !sendCommand("reboot\r", "Reboot",NULL,5000,false) )
+ return false;
+
+ wait(0.3);
+
+ state.cmd_mode = false;
+ return true;
+}
+
+
+/////////////////////////////////////////
+//::close()
+//
+//disconnect a TCP connection.
+////////////////////////////////////////
+bool Wifly::close()
+{
+ // if not connected, return
+ if (!state.tcp)
+ return true;
+
+ wait(0.25);
+ if (!sendCommand("close\r", "CLOS"))
+ return false;
+ exitCmdMode();
+
+ state.tcp = false;
+ return true;
+}
+
+/////////////////////////////////////////
+//::putc()
+//
+//Wrapper for wiFiSerial putc()
+int Wifly::putc(char c)
+{
+ return wifiSer.putc(c);
+}
+
+/////////////////////////////////////////
+//exitCmdMode()
+//
+//Tell WiFi module to exit command mode
+bool Wifly::exitCmdMode()
+{
+ flush();
+ //////////////////////////
+ ///We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+ if (!state.cmd_mode)
+ return true;
+
+ if (!sendCommand("exit\r", "EXIT"))
+ return false;
+
+ state.cmd_mode = false;
+ //////////////////////////
+ ///We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+ return true;
+}
+
+/////////////////////////////////////////
+//readable()
+//
+//BufferedSerial buffer has data?
+int Wifly::readable()
+{
+ return wifiSer.readable(); //// note: look if things are in the buffer;
+}
+
+
+/////////////////////////////////////////
+//writeable()
+//
+//BufferedSerial This call will always
+//return true. the cicular queue will
+//always allow data
+int Wifly::writeable()
+{
+ return wifiSer.writeable();
+}
+
+char Wifly::getc()
+{
+ char c;
+
+ c = wifiSer.getc();
+
+ // while (!buf_wifly.available());
+ // buf_wifly.dequeue(&c);
+ return c;
+}
+
+/////////////////////////////////////////////////////
+///These two functions are no longer needed since
+///The BufferedSerial class takes care of this
+void Wifly::handler_rx(void)
+{
+ //read characters
+ // while (wifiSer.readable())
+ // buf_wifly.queue(wifiSer.getc());
+}
+
+void Wifly::attach_rx(bool callback)
+{
+ /*
+ if (!callback)
+ wifiSer.attach(NULL);
+ else
+ wifiSer.attach(this, &Wifly::handler_rx);*/
+}
+
+////////////////////////////////////////////////////////////
+//sendString()
+//
+//
+//
+//
+//
+//
+//////////////////////////////////////////////////////////`
+int Wifly::sendString(const char * str, int len, const char * ACK, char * res, int timeout,bool DHCPconn)
+{
+ char read;
+ size_t found = string::npos; //same as -1 substring not found else position of string
+ size_t DHCPnotCONN = string::npos;
+ string AUTH_ERR = "AUTH-ERR"; //Error string on DHCP invalid SSID or PAss Phrase
+ string FAILED = "NONE FAILED";
+ string DHCP_CONN = "DHCP=ON";
+ string checking;
+ Timer tmr;
+ int result = 0;
+ char buffer[280];
+ int pos = 0;
+ int DHCPconnect = 0;
+
+ // DBG("will send: %s\r\n","checka: %s\r\n",);
+
+ // attach_rx(false);
+//sprintf(buffer,"will send: %s\r\n", str);
+//myDebug.printf(buffer);
+
+ //We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+
+ //////////////////////////////////////////
+ ///This is probably a get command
+ if (!ACK || !strcmp(ACK, "NO"))
+ {
+ for (int i = 0; i < len; i++)
+ {
+ result = (putc(str[i]) == str[i]) ? result + 1 : result;
+ }
+ }
+ else
+ {
+ // myDebug.printf("here1\n");
+ //We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+ tmr.start();
+ ////////////////////////////////////////
+ ///Send command to wiFly transciver
+ for (int i = 0; i < len; i++)
+ {
+ result = (putc(str[i]) == str[i]) ? result + 1 : result;
+ }
+
+ ////////////////////////////////////////
+ ///Now get expected results
+ while (1)
+ {
+ //////////////////////////////
+ ///Time has expired
+ if (tmr.read_ms() > timeout)
+ {
+ // myDebug.printf("timeout!\n");
+ //We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+
+ sprintf(buffer,"timeout: %s\r\n", checking.c_str());
+ myDebug.printf(buffer);
+ //DBG("check: %s\r\n", checking.c_str());
+
+ // attach_rx(true);
+ return 1;
+ }
+ else if (wifiSer.readable())
+ {
+ read = wifiSer.getc();
+ if ( read != '\r' && read != '\n')
+ {
+ ////////////////////////////////////////
+ ///This method is ineficient!!!
+ checking += read;
+ found = checking.find(ACK);
+
+
+ ////////////////////////////////////////
+ ///if a + value string found
+ if (found != string::npos)
+ {
+ wait(0.01);
+// sprintf(buffer,"found: %s\n",checking.c_str() );
+// myDebug.printf(buffer);
+
+ //////////////////////////
+ ///We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+ if( DHCP_CONN.find(ACK) != string::npos)
+ {
+ return 2; //successful DHCP
+ }
+ return 0; //found string 0 good
+ // break;
+ }
+
+ ///////////////////////////////////////////////////
+ ///Special case check for DHCP attempt connection
+ if(DHCPconn)
+ {
+ DHCPnotCONN = checking.find(AUTH_ERR);
+ if (DHCPnotCONN != string::npos)
+ {
+ wait(0.01);
+ sprintf(buffer,"AUTH-ERR: %s\n",checking.c_str() );
+ myDebug.printf(buffer);
+
+ //////////////////////////////
+ ///We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+ return 3; //DHCP Error
+ // break;
+ }
+
+ DHCPnotCONN = checking.find(FAILED);
+ if (DHCPnotCONN != string::npos)
+ {
+ wait(0.01);
+ sprintf(buffer,"NONE FAILED: %s\n",checking.c_str() );
+ myDebug.printf(buffer);
+
+ //We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+ return 3;
+ // break;
+ }
+ }//if(DHCPconn}
+
+ }//if ( read != '\r' && read != '\n')
+ }//else if (wifiSer.readable())
+ } //while (1)
+ // sprintf(buffer,"check2: %s\r\n", checking.c_str());
+ // myDebug.printf(buffer);
+ // DBG("check: %s\r\n", checking.c_str());
+
+ // attach_rx(true);
+ return result;
+ }
+
+ //the user wants the result from the command (ACK == NULL, res != NULL)
+ if ( res != NULL)
+ {
+ int i = 0;
+ Timer timeout;
+ timeout.start();
+ tmr.reset();
+ while (1) {
+ if (timeout.read() > 2) {
+ if (i == 0) {
+ res = NULL;
+ break;
+ }
+ res[i] = '\0';
+ // DBG("user str 1: %s\r\n", res);
+
+ break;
+ } else {
+ if (tmr.read_ms() > 300) {
+ res[i] = '\0';
+ // DBG("user str: %s\r\n", res);
+
+ break;
+ }
+ if (wifiSer.readable()) {
+ tmr.start();
+ read = wifiSer.getc();
+
+ // we drop \r and \n
+ if ( read != '\r' && read != '\n') {
+ res[i++] = read;
+ }
+ }
+ }
+ }
+ // DBG("user str: %s\r\n", res);
+ return 0;
+ }
+
+ // //We flush the buffer
+ // while (wifiSer.readable())
+ // wifiSer.getc();
+
+ // attach_rx(true);
+ //DBG("result: %d\r\n", result)
+ return 1;
+}
+
+ /* if( read == ACK[pos] )
+ {
+ pos++;
+ sprintf(buffer,"cmp: %d\n",pos);
+ myDebug.printf(buffer);
+
+ if(pos == len)
+ {
+ myDebug.printf("myCompare-Break\n");
+ ///////////////////////////
+ ///We have a compare
+ //We flush the buffer
+ while (wifiSer.readable())
+ wifiSer.getc();
+
+ break;
+ }
+ }//if( read == ACK[pos] )
+ else
+ {
+ if(pos == len)
+ {
+ myDebug.printf("myCompare2\n");
+ }
+ else
+ pos = 0;
+ }
+ */
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Wifly.h Wed Feb 22 18:49:17 2017 +0000
@@ -0,0 +1,273 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * @section DESCRIPTION
+ *
+ * Wifly Seeed Wifi Shield V2.0 RN-171, wifi module
+ *
+ * Datasheet:
+ *
+ * http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Wireless/WiFi/WiFly-RN-UM.pdf
+ * WiFly-EZX-171 LAN Module
+
+ //On the Seeed Wifi Shield V2.0 there are two solder pads p5 and p6
+ //p5: will connect D6/PB_10 to the hardware reset pin of RN-171
+ //p6: will connect D5/PB_4 to GPIO6 of RN-171 to monitor IP Ready/tcpStatus
+ */
+
+#ifndef WIFLY_H
+#define WIFLY_H
+
+#include "mbed.h"
+
+#include "BufferedSerial.h"
+
+//#include "RawSerial.h"
+//#include "CBuffer.h"
+
+#define DEFAULT_WAIT_RESP_TIMEOUT 10000
+#define DEFAULT_WAIT_RESPONSE_TIME 1000
+
+enum Security {
+ NONE = 0,
+ WEP_128 = 1,
+ WPA = 3
+};
+
+enum Protocol {
+ UDP = (1 << 0),
+ TCP = (1 << 1)
+};
+
+#define softwareReset 0
+#define hardwareReset 1
+#define setDHCP true
+#define setStatic false
+
+/**
+ * The Wifly class
+ */
+class Wifly
+{
+
+public:
+ /**join
+ * Constructor
+ *
+ * @param tx mbed pin to use for tx line of Serial interface
+ * @param rx mbed pin to use for rx line of Serial interface
+ * @param reset reset pin of the wifi module ()
+ * @param tcp_status connection status pin of the wifi module (GPIO 6)
+ * @param ssid ssid of the network
+ * @param phrase WEP or WPA key
+ * @param sec Security type (NONE, WEP_128 or WPA)
+
+ //On the Seeed Wifi Shield V2.0 there are two solder pads p5 and p6
+ //p5: will connect D6/PB_10 to the hardware reset pin of RN-171
+ //p6: will connect D5/PB_4 to GPIO6 of RN-171 to monitor IP Ready/tcpStatus
+
+ */
+ Wifly( PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec);
+
+ /**
+ * Connect the wifi module to the ssid contained in the constructor.
+ *
+ * @return true if connected, false otherwise
+ */
+
+ bool init(); //Setup initial values of the wifi.
+ bool join(); //Uses the base class SSID/Phrase/AUTH
+ bool join(const char *ssid, const char *phrase, int auth);
+ void setConnectionType(bool DHCP_STATIC=true); //Default DHCP
+
+ /**
+ * Disconnect the wifly module from the access point
+ *
+ * @return true if successful
+ */
+ bool disconnect();
+
+ /**
+ * Open a tcp connection with the specified host on the specified port
+ *
+ * @param host host (can be either an ip address or a name. If a name is provided, a dns request will be established)
+ * @param port port
+ * @return true if successful
+ */
+ bool connect(const char * host, int port);
+
+
+ /**
+ * Set the protocol (UDP or TCP)
+ *
+ * @param p protocol
+ * @return true if successful
+ */
+ bool setProtocol(Protocol p);
+
+ /**
+ * Reset the wifi module
+ */
+ bool reset(bool); //0:softwareReset 1: hardwareReset
+
+ /**
+ * Reboot the wifi module
+ */
+ bool reboot();
+
+ /**
+ * Check if characters are available
+ *
+ * @return number of available characters
+ */
+ int readable();
+
+ /**
+ * Check if characters are available
+ *
+ * @return number of available characters
+ */
+ int writeable();
+
+ /**
+ * Check if a tcp link is active
+ *
+ * @return true if successful
+ */
+ bool is_connected();
+
+ /**
+ * Read a character
+ *
+ * @return the character read
+ */
+ char getc();
+
+ /**
+ * Flush the buffer
+ */
+ void flush();
+
+ /**
+ * Write a character
+ *
+ * @param the character which will be written
+ */
+ int putc(char c);
+
+
+ /**
+ * To enter in command mode (we can configure the module)
+ *
+ * @return true if successful, false otherwise
+ */
+ bool cmdMode();
+
+ /**
+ * To exit the command mode
+ *
+ * @return true if successful, false otherwise
+ */
+ bool exitCmdMode();
+
+ /**
+ * Close a tcp connection
+ *
+ * @return true if successful
+ */
+ bool close();
+
+ /**
+ * Send a string to the wifi module by serial port. This function desactivates the user interrupt handler when a character is received to analyze the response from the wifi module.
+ * Useful to send a command to the module and wait a response.
+ *
+ *
+ * @param str string to be sent
+ * @param len string length
+ * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO")
+ * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL)
+ *
+ * @return true if ACK has been found in the response from the wifi module. False otherwise or if there is no response in 5s.
+ */
+ int sendString(const char * str, int len, const char * ACK = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESPONSE_TIME, bool DHCPconn = false);
+
+ /**
+ * Send a command to the wify module. Check if the module is in command mode. If not enter in command mode
+ *
+ * @param str string to be sent
+ * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO")
+ * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL)
+ *
+ * @return true if successful
+ */
+ bool sendCommand(const char * cmd, const char * ack = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT, bool DHCPconn = false);
+
+ bool setBaudRate(int baud);
+ /**
+ * Return true if the module is using dhcp
+ *
+ * @return true if the module is using dhcp
+ */
+ bool isDHCP() {
+ return state.dhcp;
+ }
+
+
+
+ bool gethostbyname(const char * host, char * ip);
+ void getDHCPhostInfo(char *SSID, char *passPhrase, int &auth);
+
+ static Wifly * getInstance() {
+ return inst;
+ };
+
+protected:
+ BufferedSerial wifiSer;
+ DigitalOut reset_pin;
+ DigitalIn tcp_status;
+ char phrase[65];
+ char ssid[33];
+ char staticIP[30];
+ const char * ip;
+ const char * netmask;
+ const char * gateway;
+ int channel;
+ // CircBuffer<char> buf_wifly;
+
+ static Wifly * inst;
+
+ void attach_rx(bool null);
+ void handler_rx(void);
+
+ void enableDHCP(bool DHCP_STATIC);
+ void setStaticIP(const char *staticIP);
+
+ typedef struct STATE {
+ bool associated;
+ bool tcp;
+ bool dhcp;
+ Security sec;
+ Protocol proto;
+ bool cmd_mode;
+ } State;
+
+ State state;
+ char * getStringSecurity();
+};
+
+#endif
+