wifly/socket interface for wifly modules
Dependents: WiFi neurGAI_WIFI thingspeak thingspeak2
Revision 7:a92dbed32890, committed 2012-08-23
- Comitter:
- samux
- Date:
- Thu Aug 23 12:59:19 2012 +0000
- Parent:
- 6:f281180726e8
- Child:
- 8:9a3cd07ed7e8
- Commit message:
- add security enum
Changed in this revision
--- a/Wifly/Wifly.cpp Thu Aug 23 11:49:33 2012 +0000 +++ b/Wifly/Wifly.cpp Thu Aug 23 12:59:19 2012 +0000 @@ -1,440 +1,455 @@ -/* Copyright (C) 2012 mbed.org, MIT License - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of this software - * and associated documentation files (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, publish, distribute, - * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all copies or - * substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING - * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "mbed.h" -#include "Wifly.h" -#include <string> -#include <algorithm> - -//Debug is disabled by default -#if 0 -#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 - -#define INFO(x, ...) printf("[Wifly : INFO]"x"\r\n", ##__VA_ARGS__); - -#define MAX_TRY_JOIN 3 - -Wifly * Wifly::inst; - -Wifly::Wifly( PinName tx, PinName rx, PinName _reset, PinName tcp_status, const char * ssid, const char * phrase, bool wpa): - wifi(tx, rx), reset_pin(_reset), tcp_status(tcp_status), buf_wifly(512) -{ - this->wpa = wpa; - - // change all ' ' in '$' in the ssid and the passphrase - strcpy(this->ssid, ssid); - for (int i = 0; i < strlen(ssid); i++) { - if (this->ssid[i] == ' ') - this->ssid[i] = '$'; - } - strcpy(this->phrase, phrase); - for (int i = 0; i < strlen(phrase); i++) { - if (this->phrase[i] == ' ') - this->phrase[i] = '$'; - } - - inst = this; - attach_rx(false); - cmd_mode = false; -} - -bool Wifly::join() -{ - char cmd[100]; - - for (int i= 0; i < MAX_TRY_JOIN; i++) { - if (!sendCommand("set comm time 20\r", "AOK")) - continue; - - if (!sendCommand("set comm size 128\r", "AOK")) - continue; - - if (!sendCommand("set sys iofunc 0x40\r", "AOK")) - continue; - - // no string sent to the tcp client - if (!sendCommand("set comm remote 0\r", "AOK")) - continue; - - // tcp protocol - if (!sendCommand("set ip proto 2\r", "AOK")) - continue; - - // tcp retry - if (!sendCommand("set ip flags 0x7\r", "AOK")) - continue; - - //no echo - if (!sendCommand("set u m 1\r", "AOK")) - continue; - - // no auto join - if (!sendCommand("set w j 0\r", "AOK")) - continue; - - //dhcp - sprintf(cmd, "set i d %d\r", (dhcp) ? 1 : 0); - if (!sendCommand(cmd, "AOK")) - continue; - - // ssid - sprintf(cmd, "set w s %s\r", ssid); - if (!sendCommand(cmd, "AOK")) - continue; - - //auth - sprintf(cmd, "set w a %d\r", (wpa) ? 3 : 1); - if (!sendCommand(cmd, "AOK")) - continue; - - // if no dhcp, set ip, netmask and gateway - if (!dhcp) { - DBG("not dhcp\r"); - - sprintf(cmd, "set i a %s\r\n", ip); - if (!sendCommand(cmd, "AOK")) - continue; - - sprintf(cmd, "set i n %s\r", netmask); - if (!sendCommand(cmd, "AOK")) - continue; - - sprintf(cmd, "set i g %s\r", gateway); - if (!sendCommand(cmd, "AOK")) - continue; - } - - //key step - if (wpa) - sprintf(cmd, "set w p %s\r", phrase); - else - sprintf(cmd, "set w k %s\r", phrase); - - if (!sendCommand(cmd, "AOK")) - continue; - - // save - if (!sendCommand("save\r", "Stor")) - return false; - - //join the network - sprintf(cmd, "join\r"); - if (!sendCommand(cmd, "Associated", NULL, 3000)) - continue; - - if (dhcp) { - if (!sendCommand("", "DHCP=ON", NULL, 3000)) - continue; - } - - exit(); - - INFO("\r\nssid: %s\r\nphrase: %s\r\nsecurity: %s\r\n\r\n", this->ssid, this->phrase, (wpa) ? "WPA" : "WEP"); - return true; - } - return false; -} - - -bool Wifly::dnsLookup(const char * host, char * ip) -{ - string h = host; - char cmd[30], rcv[100]; - int l = 0; - char * point; - int nb_digits = 0; - - // no dns needed - int pos = h.find("."); - if (pos != string::npos) { - string sub = h.substr(0, h.find(".")); - nb_digits = atoi(sub.c_str()); - } - //printf("substrL %s\r\n", sub.c_str()); - if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) { - strcpy(ip, host); - } - // dns needed - else { - nb_digits = 0; - sprintf(cmd, "lookup %s\r", host); - if (!sendCommand(cmd, NULL, rcv)) - return false; - - // look for the ip address - char * begin = strstr(rcv, "=") + 1; - for (int i = 0; i < 3; i++) { - point = strstr(begin + l, "."); - DBG("str: %s", begin + l); - l += point - (begin + l) + 1; - } - DBG("str: %s", begin + l); - while(*(begin + l + nb_digits) >= '0' && *(begin + l + nb_digits) <= '9') { - DBG("digit: %c", *(begin + l + nb_digits)); - nb_digits++; - } - memcpy(ip, begin, l + nb_digits); - ip[l+nb_digits] = 0; - DBG("ip from dns: %s", ip); - } - return true; -} - - -void Wifly::flush() -{ - buf_wifly.flush(); -} - -bool Wifly::sendCommand(const char * cmd, const char * ack, char * res, int timeout) -{ - if (!cmd_mode) { - cmdMode(); - } - if (send(cmd, strlen(cmd), ack, res, timeout) == -1) { - ERR("sendCommand: cannot %s\r\n", cmd); - exit(); - return false; - } - return true; -} - -bool Wifly::cmdMode() -{ - if (send("$$$", 3, "CMD") == -1) { - ERR("cannot enter in cmd mode\r\n"); - return false; - } - cmd_mode = true; - return true; -} - -bool Wifly::leave() -{ - if (!sendCommand("leave\r", "DeAuth")) - return false; - exit(); - return true; - -} - -bool Wifly::is_connected() -{ - return (tcp_status.read() == 1) ? true : false; -} - - -void Wifly::reset() -{ - reset_pin = 0; - wait(0.2); - reset_pin = 1; - wait(0.2); -} - -bool Wifly::close() -{ - wait(0.25); - if (!cmdMode()) - return false; - if (send("close\r", 6, "CLOS") == -1) - return false; - exit(); - return true; -} - - -int Wifly::putc(char c) -{ - while (!wifi.writeable()); - return wifi.putc(c); -} - - -bool Wifly::read(char * str) -{ - int length = buf_wifly.available(); - if (length == 0) - return false; - for (int i = 0; i < length; i++) - buf_wifly.dequeue(&str[i]); - str[length] = 0; - return true; -} - - -bool Wifly::exit() -{ - flush(); - if (!cmd_mode) - return true; - if (send("exit\r", 5, "EXIT") == -1) - return false; - cmd_mode = false; - flush(); - return true; -} - - -int Wifly::readable() -{ - return buf_wifly.available(); -} - -int Wifly::writeable() -{ - return wifi.writeable(); -} - -char Wifly::getc() -{ - char c; - while (!buf_wifly.available()); - buf_wifly.dequeue(&c); - return c; -} - -void Wifly::handler_rx(void) -{ - //read characters - while (wifi.readable()) - buf_wifly.queue(wifi.getc()); -} - -void Wifly::attach_rx(bool callback) -{ - if (!callback) - wifi.attach(NULL); - else - wifi.attach(this, &Wifly::handler_rx); -} - - -int Wifly::send(const char * str, int len, const char * ACK, char * res, int timeout) -{ - char read; - size_t found = string::npos; - string checking; - Timer tmr; - int result = 0; - - DBG("will send: %s\r\n",str); - - attach_rx(false); - - //We flush the buffer - while (wifi.readable()) - wifi.getc(); - - if (!ACK || !strcmp(ACK, "NO")) { - for (int i = 0; i < len; i++) - result = (putc(str[i]) == str[i]) ? result + 1 : result; - } else { - //We flush the buffer - while (wifi.readable()) - wifi.getc(); - - tmr.start(); - for (int i = 0; i < len; i++) - result = (putc(str[i]) == str[i]) ? result + 1 : result; - - while (1) { - if (tmr.read_ms() > timeout) { - //We flush the buffer - while (wifi.readable()) - wifi.getc(); - - DBG("check: %s\r\n", checking.c_str()); - - attach_rx(true); - return -1; - } else if (wifi.readable()) { - read = wifi.getc(); - if ( read != '\r' && read != '\n') { - checking += read; - found = checking.find(ACK); - if (found != string::npos) { - wait(0.01); - - //We flush the buffer - while (wifi.readable()) - wifi.getc(); - - break; - } - } - } - } - DBG("check: %s\r\n", checking.c_str()); - - attach_rx(true); - return result; - } - - //the user wants the result from the command (ACK == NULL, res != NULL) - if ( res != NULL) { - int i = 0; - Timer timeout; - timeout.start(); - tmr.reset(); - while (1) { - if (timeout.read() > 2) { - if (i == 0) { - res = NULL; - break; - } - res[i] = '\0'; - DBG("user str 1: %s\r\n", res); - - break; - } else { - if (tmr.read_ms() > 300) { - res[i] = '\0'; - DBG("user str: %s\r\n", res); - - break; - } - if (wifi.readable()) { - tmr.start(); - read = wifi.getc(); - - // we drop \r and \n - if ( read != '\r' && read != '\n') { - res[i++] = read; - } - } - } - } - DBG("user str: %s\r\n", res); - } - - //We flush the buffer - while (wifi.readable()) - wifi.getc(); - - attach_rx(true); - DBG("result: %d\r\n", result) - return result; +/* Copyright (C) 2012 mbed.org, MIT License + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software + * and associated documentation files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all copies or + * substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "mbed.h" +#include "Wifly.h" +#include <string> +#include <algorithm> + +//Debug is disabled by default +#if 0 +#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 + +#define INFO(x, ...) printf("[Wifly : INFO]"x"\r\n", ##__VA_ARGS__); + +#define MAX_TRY_JOIN 3 + +Wifly * Wifly::inst; + +Wifly::Wifly( PinName tx, PinName rx, PinName _reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec): + wifi(tx, rx), reset_pin(_reset), tcp_status(tcp_status), buf_wifly(512) +{ + this->wpa = wpa; + security = sec; + + // change all ' ' in '$' in the ssid and the passphrase + strcpy(this->ssid, ssid); + for (int i = 0; i < strlen(ssid); i++) { + if (this->ssid[i] == ' ') + this->ssid[i] = '$'; + } + strcpy(this->phrase, phrase); + for (int i = 0; i < strlen(phrase); i++) { + if (this->phrase[i] == ' ') + this->phrase[i] = '$'; + } + + inst = this; + attach_rx(false); + cmd_mode = false; +} + +bool Wifly::join() +{ + char cmd[100]; + + for (int i= 0; i < MAX_TRY_JOIN; i++) { + if (!sendCommand("set comm time 20\r", "AOK")) + continue; + + if (!sendCommand("set comm size 128\r", "AOK")) + continue; + + if (!sendCommand("set sys iofunc 0x40\r", "AOK")) + continue; + + // no string sent to the tcp client + if (!sendCommand("set comm remote 0\r", "AOK")) + continue; + + // tcp protocol + if (!sendCommand("set ip proto 2\r", "AOK")) + continue; + + // tcp retry + if (!sendCommand("set ip flags 0x7\r", "AOK")) + continue; + + //no echo + if (!sendCommand("set u m 1\r", "AOK")) + continue; + + // no auto join + if (!sendCommand("set w j 0\r", "AOK")) + continue; + + //dhcp + sprintf(cmd, "set i d %d\r", (dhcp) ? 1 : 0); + if (!sendCommand(cmd, "AOK")) + continue; + + // ssid + sprintf(cmd, "set w s %s\r", ssid); + if (!sendCommand(cmd, "AOK")) + continue; + + //auth + sprintf(cmd, "set w a %d\r", security); + if (!sendCommand(cmd, "AOK")) + continue; + + // if no dhcp, set ip, netmask and gateway + if (!dhcp) { + DBG("not dhcp\r"); + + sprintf(cmd, "set i a %s\r\n", ip); + if (!sendCommand(cmd, "AOK")) + continue; + + sprintf(cmd, "set i n %s\r", netmask); + if (!sendCommand(cmd, "AOK")) + continue; + + sprintf(cmd, "set i g %s\r", gateway); + if (!sendCommand(cmd, "AOK")) + continue; + } + + //key step + if (security != NONE) { + if (security == WPA) + sprintf(cmd, "set w p %s\r", phrase); + else if (security == WEP_128) + sprintf(cmd, "set w k %s\r", phrase); + + if (!sendCommand(cmd, "AOK")) + continue; + } + + // save + if (!sendCommand("save\r", "Stor")) + return false; + + //join the network + sprintf(cmd, "join\r"); + if (!sendCommand(cmd, "Associated", NULL, 3000)) + continue; + + if (dhcp) { + if (!sendCommand("", "DHCP=ON", NULL, 3000)) + continue; + } + + exit(); + + INFO("\r\nssid: %s\r\nphrase: %s\r\nsecurity: %s\r\n\r\n", this->ssid, this->phrase, getStringSecurity()); + return true; + } + return false; +} + +char * Wifly::getStringSecurity() { + switch(security) { + case NONE: + return "NONE"; + case WEP_128: + return "WEP_128"; + case WPA: + return "WPA"; + } + return "UNKNOWN"; +} + + +bool Wifly::dnsLookup(const char * host, char * ip) +{ + string h = host; + char cmd[30], rcv[100]; + int l = 0; + char * point; + int nb_digits = 0; + + // no dns needed + int pos = h.find("."); + if (pos != string::npos) { + string sub = h.substr(0, h.find(".")); + nb_digits = atoi(sub.c_str()); + } + //printf("substrL %s\r\n", sub.c_str()); + if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) { + strcpy(ip, host); + } + // dns needed + else { + nb_digits = 0; + sprintf(cmd, "lookup %s\r", host); + if (!sendCommand(cmd, NULL, rcv)) + return false; + + // look for the ip address + char * begin = strstr(rcv, "=") + 1; + for (int i = 0; i < 3; i++) { + point = strstr(begin + l, "."); + DBG("str: %s", begin + l); + l += point - (begin + l) + 1; + } + DBG("str: %s", begin + l); + while(*(begin + l + nb_digits) >= '0' && *(begin + l + nb_digits) <= '9') { + DBG("digit: %c", *(begin + l + nb_digits)); + nb_digits++; + } + memcpy(ip, begin, l + nb_digits); + ip[l+nb_digits] = 0; + DBG("ip from dns: %s", ip); + } + return true; +} + + +void Wifly::flush() +{ + buf_wifly.flush(); +} + +bool Wifly::sendCommand(const char * cmd, const char * ack, char * res, int timeout) +{ + if (!cmd_mode) { + cmdMode(); + } + if (send(cmd, strlen(cmd), ack, res, timeout) == -1) { + ERR("sendCommand: cannot %s\r\n", cmd); + exit(); + return false; + } + return true; +} + +bool Wifly::cmdMode() +{ + if (send("$$$", 3, "CMD") == -1) { + ERR("cannot enter in cmd mode\r\n"); + return false; + } + cmd_mode = true; + return true; +} + +bool Wifly::leave() +{ + if (!sendCommand("leave\r", "DeAuth")) + return false; + exit(); + return true; + +} + +bool Wifly::is_connected() +{ + return (tcp_status.read() == 1) ? true : false; +} + + +void Wifly::reset() +{ + reset_pin = 0; + wait(0.2); + reset_pin = 1; + wait(0.2); +} + +bool Wifly::close() +{ + wait(0.25); + if (!cmdMode()) + return false; + if (send("close\r", 6, "CLOS") == -1) + return false; + exit(); + return true; +} + + +int Wifly::putc(char c) +{ + while (!wifi.writeable()); + return wifi.putc(c); +} + + +bool Wifly::read(char * str) +{ + int length = buf_wifly.available(); + if (length == 0) + return false; + for (int i = 0; i < length; i++) + buf_wifly.dequeue(&str[i]); + str[length] = 0; + return true; +} + + +bool Wifly::exit() +{ + flush(); + if (!cmd_mode) + return true; + if (send("exit\r", 5, "EXIT") == -1) + return false; + cmd_mode = false; + flush(); + return true; +} + + +int Wifly::readable() +{ + return buf_wifly.available(); +} + +int Wifly::writeable() +{ + return wifi.writeable(); +} + +char Wifly::getc() +{ + char c; + while (!buf_wifly.available()); + buf_wifly.dequeue(&c); + return c; +} + +void Wifly::handler_rx(void) +{ + //read characters + while (wifi.readable()) + buf_wifly.queue(wifi.getc()); +} + +void Wifly::attach_rx(bool callback) +{ + if (!callback) + wifi.attach(NULL); + else + wifi.attach(this, &Wifly::handler_rx); +} + + +int Wifly::send(const char * str, int len, const char * ACK, char * res, int timeout) +{ + char read; + size_t found = string::npos; + string checking; + Timer tmr; + int result = 0; + + DBG("will send: %s\r\n",str); + + attach_rx(false); + + //We flush the buffer + while (wifi.readable()) + wifi.getc(); + + if (!ACK || !strcmp(ACK, "NO")) { + for (int i = 0; i < len; i++) + result = (putc(str[i]) == str[i]) ? result + 1 : result; + } else { + //We flush the buffer + while (wifi.readable()) + wifi.getc(); + + tmr.start(); + for (int i = 0; i < len; i++) + result = (putc(str[i]) == str[i]) ? result + 1 : result; + + while (1) { + if (tmr.read_ms() > timeout) { + //We flush the buffer + while (wifi.readable()) + wifi.getc(); + + DBG("check: %s\r\n", checking.c_str()); + + attach_rx(true); + return -1; + } else if (wifi.readable()) { + read = wifi.getc(); + if ( read != '\r' && read != '\n') { + checking += read; + found = checking.find(ACK); + if (found != string::npos) { + wait(0.01); + + //We flush the buffer + while (wifi.readable()) + wifi.getc(); + + break; + } + } + } + } + DBG("check: %s\r\n", checking.c_str()); + + attach_rx(true); + return result; + } + + //the user wants the result from the command (ACK == NULL, res != NULL) + if ( res != NULL) { + int i = 0; + Timer timeout; + timeout.start(); + tmr.reset(); + while (1) { + if (timeout.read() > 2) { + if (i == 0) { + res = NULL; + break; + } + res[i] = '\0'; + DBG("user str 1: %s\r\n", res); + + break; + } else { + if (tmr.read_ms() > 300) { + res[i] = '\0'; + DBG("user str: %s\r\n", res); + + break; + } + if (wifi.readable()) { + tmr.start(); + read = wifi.getc(); + + // we drop \r and \n + if ( read != '\r' && read != '\n') { + res[i++] = read; + } + } + } + } + DBG("user str: %s\r\n", res); + } + + //We flush the buffer + while (wifi.readable()) + wifi.getc(); + + attach_rx(true); + DBG("result: %d\r\n", result) + return result; } \ No newline at end of file
--- a/Wifly/Wifly.h Thu Aug 23 11:49:33 2012 +0000 +++ b/Wifly/Wifly.h Thu Aug 23 12:59:19 2012 +0000 @@ -1,190 +1,198 @@ -/* Copyright (C) 2012 mbed.org, MIT License - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of this software - * and associated documentation files (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, publish, distribute, - * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all copies or - * substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING - * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * @section DESCRIPTION - * - * Wifly RN131-C, wifi module - * - * Datasheet: - * - * http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Wireless/WiFi/WiFly-RN-UM.pdf - */ - -#ifndef WIFLY_H -#define WIFLY_H - -#include "mbed.h" -#include "CBuffer.h" - -#define DEFAULT_WAIT_RESP_TIMEOUT 500 - -class Wifly { - -public: - /* - * Constructor for joining open, wep or wpa secured networks - * - * @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 wpa true if wpa security false otherwise - */ - Wifly( PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, bool wpa); - - /* - * Send a string to the wifi module by serial port. This function desactivates the user interrupt handler when a character is received to analyze the response from the wifi module. - * Useful to send a command to the module and wait a response. - * - * - * @param str string to be sent - * @param len string length - * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO") - * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL) - * - * @return true if ACK has been found in the response from the wifi module. False otherwise or if there is no response in 5s. - */ - int send(const char * str, int len, const char * ACK = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT); - - /* - * Connect the wifi module to the ssid contained in the constructor. - * - * @return true if connected, false otherwise - */ - bool join(); - - /* - * Close a connection with the access point - * - * @ returns true if successful - */ - bool leave(); - - /* - * Read a string if available - * - *@param str pointer where will be stored the string read - */ - bool read(char * str); - - /* - * Reset the wifi module - */ - void reset(); - - /* - * Check if characters are available - * - * @return number of available characters - */ - int readable(); - - /* - * Check if characters are available - * - * @return number of available characters - */ - int writeable(); - - /* - * Check if a tcp link is active - * - * @returns true if successful - */ - bool is_connected(); - - /* - * Read a character - * - * @return the character read - */ - char getc(); - - /* - * Flush the buffer - */ - void flush(); - - /* - * Write a character - * - * @param the character which will be written - */ - int putc(char c); - - - /* - * To enter in command mode (we can configure the module) - * - * @return true if successful, false otherwise - */ - bool cmdMode(); - - /* - * To exit the command mode - * - * @return true if successful, false otherwise - */ - bool exit(); - - /* - * Close a tcp connection - * - * @ returns true if successful - */ - bool close(); - - /* - * Send a command to the wify module. Check if the module is in command mode. If not enter in command mode - * - * @param str string to be sent - * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO") - * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL) - * - * @returns true if successful - */ - bool sendCommand(const char * cmd, const char * ack = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT); - - bool dnsLookup(const char * host, char * ip); - - static Wifly * getInstance() {return inst;}; - -protected: - Serial wifi; - DigitalOut reset_pin; - DigitalIn tcp_status; - bool wpa; - bool dhcp; - char phrase[30]; - char ssid[30]; - const char * ip; - const char * netmask; - const char * gateway; - int channel; - CircBuffer<char> buf_wifly; - - bool cmd_mode; - - static Wifly * inst; - - void attach_rx(bool null); - void handler_rx(void); -}; - +/* Copyright (C) 2012 mbed.org, MIT License + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software + * and associated documentation files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all copies or + * substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * @section DESCRIPTION + * + * Wifly RN131-C, wifi module + * + * Datasheet: + * + * http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Wireless/WiFi/WiFly-RN-UM.pdf + */ + +#ifndef WIFLY_H +#define WIFLY_H + +#include "mbed.h" +#include "CBuffer.h" + +#define DEFAULT_WAIT_RESP_TIMEOUT 500 + +enum Security { + NONE = 0, + WEP_128 = 1, + WPA = 3 +}; + +class Wifly { + +public: + /* + * Constructor for joining open, wep or wpa secured networks + * + * @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 wpa true if wpa security false otherwise + */ + Wifly( PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec); + + /* + * Send a string to the wifi module by serial port. This function desactivates the user interrupt handler when a character is received to analyze the response from the wifi module. + * Useful to send a command to the module and wait a response. + * + * + * @param str string to be sent + * @param len string length + * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO") + * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL) + * + * @return true if ACK has been found in the response from the wifi module. False otherwise or if there is no response in 5s. + */ + int send(const char * str, int len, const char * ACK = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT); + + /* + * Connect the wifi module to the ssid contained in the constructor. + * + * @return true if connected, false otherwise + */ + bool join(); + + /* + * Close a connection with the access point + * + * @ returns true if successful + */ + bool leave(); + + /* + * Read a string if available + * + *@param str pointer where will be stored the string read + */ + bool read(char * str); + + /* + * Reset the wifi module + */ + void reset(); + + /* + * Check if characters are available + * + * @return number of available characters + */ + int readable(); + + /* + * Check if characters are available + * + * @return number of available characters + */ + int writeable(); + + /* + * Check if a tcp link is active + * + * @returns true if successful + */ + bool is_connected(); + + /* + * Read a character + * + * @return the character read + */ + char getc(); + + /* + * Flush the buffer + */ + void flush(); + + /* + * Write a character + * + * @param the character which will be written + */ + int putc(char c); + + + /* + * To enter in command mode (we can configure the module) + * + * @return true if successful, false otherwise + */ + bool cmdMode(); + + /* + * To exit the command mode + * + * @return true if successful, false otherwise + */ + bool exit(); + + /* + * Close a tcp connection + * + * @ returns true if successful + */ + bool close(); + + /* + * Send a command to the wify module. Check if the module is in command mode. If not enter in command mode + * + * @param str string to be sent + * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO") + * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL) + * + * @returns true if successful + */ + bool sendCommand(const char * cmd, const char * ack = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT); + + bool dnsLookup(const char * host, char * ip); + + static Wifly * getInstance() {return inst;}; + +protected: + Serial wifi; + DigitalOut reset_pin; + DigitalIn tcp_status; + bool wpa; + bool dhcp; + char phrase[30]; + char ssid[30]; + const char * ip; + const char * netmask; + const char * gateway; + int channel; + CircBuffer<char> buf_wifly; + Security security; + char * getStringSecurity(); + + bool cmd_mode; + + static Wifly * inst; + + void attach_rx(bool null); + void handler_rx(void); +}; + #endif \ No newline at end of file
--- a/WiflyInterface.cpp Thu Aug 23 11:49:33 2012 +0000 +++ b/WiflyInterface.cpp Thu Aug 23 12:59:19 2012 +0000 @@ -1,7 +1,7 @@ #include "WiflyInterface.h" -WiflyInterface::WiflyInterface(PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, bool wpa) : - Wifly(tx, rx, reset, tcp_status, ssid, phrase, wpa) {ip_set = false;} +WiflyInterface::WiflyInterface(PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec) : + Wifly(tx, rx, reset, tcp_status, ssid, phrase, sec) {ip_set = false;} int WiflyInterface::init() { dhcp = true;
--- a/WiflyInterface.h Thu Aug 23 11:49:33 2012 +0000 +++ b/WiflyInterface.h Thu Aug 23 12:59:19 2012 +0000 @@ -28,7 +28,7 @@ class WiflyInterface: public Wifly { public: - WiflyInterface(PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, bool wpa = true); + WiflyInterface(PinName tx, PinName rx, PinName reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec = NONE); /** Initialize the interface with DHCP. * Initialize the interface and configure it to use DHCP (no connection at this point).