File content as of revision 5:9890eb81f730:

#include "mbed.h"
#include "Wifly.h"
#include <string>






Wifly::Wifly(   PinName tx, PinName rx, PinName _reset, char * ssid, char * phrase, 
                bool wpa, char * ip, char * netmask, bool dhcp, int baudrate): 
                wifi(tx, rx), reset_pin(_reset)
{
    wifi.baud(baudrate);
    reset_pin = 1;
    wifi.format(8, Serial::None, 1);
    this->wpa = wpa;
    this->phrase = phrase;
    this->ssid = ssid;
    this->ip = ip;
    this->netmask = netmask;
    this->dhcp = dhcp;
    adhoc = false;
}





Wifly::Wifly(   PinName tx, PinName rx, PinName _reset, char * ssid, char * ip, char * netmask, int channel, 
                int baudrate): 
                wifi(tx, rx), reset_pin(_reset)
{
    wifi.baud(baudrate);
    reset_pin = 1;
    wifi.format(8, Serial::None, 1);
    adhoc = true;
    this->ssid = ssid;
    this->ip = ip;
    this->netmask = netmask;
    this->channel = channel;
}






bool Wifly::Send(char * str, char * ACK) {

    //We flush the buffer
    while(wifi.readable())
        //printf("%c",wifi.getc());
        wifi.getc();
    
    char read;
    
    size_t found = string::npos;
    
    if (!strcmp(ACK, "NO"))
        wifi.printf("%s", str);
    else
    {
        Timer tmr;
        tmr.start();
        wifi.printf("%s", str);
        string checking;
        while (1)
        {
            if(tmr.read() > 3)
            {
                //printf("checking: %s\r\n", checking);
                return false;
            }
            else if(wifi.readable())
            {
                read = wifi.getc();
                if ( read != '\r' && read != '\n')
                {
                    checking += read;
                    found = checking.find(ACK);
                    if(found != string::npos)
                    {
                        //printf("checking: %s\r\n", checking);
                        break;
                    }
                }
            }
        }
        return (found != string::npos);
    }
    return true;
}

bool Wifly::Join()
{
    char cmd[30];
    
    exit();
    
    if(!CmdMode())
    {
        printf("join: cannot enter in cmd mode\r\n");
        exit();
        return false;  
    }
    
    //auth
    if(!Send("set wlan auth 3\r\n", "AOK"))
    {
        printf("join: cannot set auth\r\n");
        exit();
        return false;
    }
    
    //dhcp
    sprintf(cmd, "set ip dhcp %d\r\n", (dhcp) ? 1 : 0);
    if(!Send(cmd, "AOK"))
    {
        printf("join: cannot set dhcp\r\n");
        exit();
        return false;
    }
    
    if(!dhcp)
    {
        printf("not dhcp\r\n");
        sprintf(cmd, "set ip address %s\r\n", ip);
        if(!Send(cmd, "AOK"))
        {
            printf("Wifly::Join: cannot set ip address\r\n");
            exit();
            return false;
        }
    
        sprintf(cmd, "set ip netmask %s\r\n", netmask);
        if(!Send(cmd, "AOK"))
        {
            printf("Wifly::join: cannot set netmask\r\n");
            exit();
            return false;
        }
    
    }
    
    //key step
    if(wpa)
        sprintf(cmd, "set wlan phrase %s\r\n", phrase);
    else
        sprintf(cmd, "set wlan key %s\r\n", phrase);
    
    if(!Send(cmd, "AOK"))
    {
        printf("join: cannot set phrase\r\n");
        exit();
        return false;
    }
    
        
    
    //join the network
    sprintf(cmd, "join %s\r\n", ssid);
    
    if(!Send(cmd, "IP="))
    {
        printf("join: cannot join %s\r\n", ssid);
        exit();
        return false;
    }
    exit();
    printf("\r\nssid: %s\r\nphrase: %s\r\nsecurity: %s\r\n\r\n", this->ssid, this->phrase, (wpa) ? "WPA" : "WEP");
    return true;
    
}


bool Wifly::CreateAdhocNetwork()
{
    if(adhoc)
    {
        char cmd[50];
        
        exit();
    
        if(!CmdMode())
        {
            printf("Wifly::CreateAdhocNetwork: cannot enter in cmd mode\r\n");
            exit();
            return false;  
        }
    
        if(!Send("set wlan join 4\r\n", "AOK"))
        {
            printf("Wifly::CreateAdhocNetwork: cannot set join 4\r\n");
            exit();
            return false;
        }
    
        //ssid
        sprintf(cmd, "set wlan ssid %s\r\n", ssid);
        if(!Send(cmd, "AOK"))
        {
            printf("Wifly::CreateAdhocNetwork: cannot set ssid\r\n");
            exit();
            return false;
        }
    
        sprintf(cmd, "set wlan channel %d\r\n", channel);
        if(!Send(cmd, "AOK"))
        {
            printf("Wifly::CreateAdhocNetwork: cannot set channel\r\n");
            exit();
            return false;
        }
    
        sprintf(cmd, "set ip address %s\r\n", ip);
        if(!Send(cmd, "AOK"))
        {
            printf("Wifly::CreateAdhocNetwork: cannot set ip address\r\n");
            exit();
            return false;
        }
    
        sprintf(cmd, "set ip netmask %s\r\n", netmask);
        if(!Send(cmd, "AOK"))
        {
            printf("Wifly::CreateAdhocNetwork: cannot set netmask\r\n");
            exit();
            return false;
        }
    
        if(!Send("set ip dhcp 0\r\n", "AOK"))
        {
            printf("Wifly::CreateAdhocNetwork: cannot set dhcp off\r\n");
            exit();
            return false;
        }
    
        if(!Send("save\r\n", "Stor"))
        {
            printf("Wifly::CreateAdhocNetwork: cannot save\r\n");
            exit();
            return false;
        }
    
        Send("reboot\r\n", "NO");
        printf("\r\ncreating an adhoc\r\nnetwork: %s\r\nip: %s\r\nnetmask: %s\r\nchannel: %d\r\n\r\n", ssid, ip, netmask, channel);
        return true;
    }
    else
    {
        printf("Wifly::join: You don't chose the right constructor for creating an adhoc mode!\r\n");
        return false;
    }
}

bool Wifly::CmdMode() 
{
    int i = 0;
    while(!Send("$$$", "CMD"))
    {
        printf("Wifly::CmdMode: cannot enter in cmd mode\r\n");
        i++;
        if ( i == 4 ) return false;
    }
    return true;
}




void Wifly::reset()
{
    reset_pin = 0;
    wait(0.2);
    reset_pin = 1;
    wait(0.2);
}






void Wifly::putc(char c)
{
    wifi.putc(c);
}




void Wifly::read(char * str) 
{
    wifi.scanf("%s", str);
}




bool Wifly::exit() 
{
    return Send("exit\r", "EXIT");
}



bool Wifly::readable()
{
    return(wifi.readable());
}

bool Wifly::changeBaudrate(int baudrate)
{
    char cmd[20];
    exit();
    if(!CmdMode())
    {
        printf("Wifly::changeBaudrate: cannot enter in cmd mode\r\n");
        return false;
    }
    
    sprintf(cmd, "set u b %d\r\n", baudrate);
    if(!Send(cmd, "AOK"))
    {
        printf("Wifly::changeBaudrate: cannot set new baudrate\r\n");
        exit();
        return false;
    }
    
    if(!Send("save\r\n", "Stor"))
    {
        printf("Wifly::changeBaudrate: cannot save\r\n");
        exit();
        return false;
    }
    
    return true;
}


char Wifly::getc()
{
    return(wifi.getc());
}