WizFi310_sock.cpp

00001 /*
00002  * Copyright (C) 2013 gsfan, MIT License
00003  *
00004  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00005  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00006  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00007  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00008  * furnished to do so, subject to the following conditions:
00009  *
00010  * The above copyright notice and this permission notice shall be included in all copies or
00011  * substantial portions of the Software.
00012  *
00013  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00014  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00015  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00016  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00017  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00018  */
00019 /* Copyright (C) 2014 Wiznet, MIT License
00020  *  port to the Wiznet Module WizFi250
00021  */
00022 /* Copyright (C) 2017 Wiznet, MIT License
00023  *  port to the Wiznet Module WizFi310
00024  */
00025 
00026 #include "WizFi310.h"
00027 
00028 int WizFi310::getHostByName(const char * host, char *ip)
00029 {
00030     int i, flg = 0;
00031 
00032     if(!isAssociated() || _state.status != STAT_READY)  return -1;
00033 
00034     for(i=0; i<strlen(host); i++)
00035     {
00036         if( (host[i] < '0' || host[i] > '9') && host[i] != '.')
00037         {
00038             flg = 1;
00039             break;
00040         }
00041     }
00042     if (!flg)
00043     {
00044         strncpy(ip, host, 16);
00045         return 0;
00046     }
00047 
00048     if ( cmdFDNS(host) )
00049     {
00050         wait_ms(1000);
00051         if( cmdFDNS(host) ) return -1;
00052     }
00053     strncpy(ip, _state.resolv, 16);
00054     return 0;
00055 }
00056 
00057 int WizFi310::open(Protocol proto, const char *ip, int remotePort, int localPort, void(*func)(int))
00058 {
00059     int cid;
00060 
00061     if (!isAssociated() || _state.status != STAT_READY)     return -1;
00062 
00063     _state.cid = -1;
00064 
00065     if (proto == PROTO_TCP)
00066     {
00067         if( cmdSCON( "O","TCN",ip, remotePort, localPort, "0" ) )   return -1;
00068     }
00069     else if(proto == PROTO_UDP)
00070     {
00071         if( cmdSCON( "O","UCN",ip, remotePort, localPort, "0" ) )   return -1;
00072     }
00073     if(_state.cid < 0) return -1;
00074 
00075     initCon(_state.cid, true);
00076     cid = _state.cid;
00077     _con[cid].protocol = proto;
00078     _con[cid].type = TYPE_CLIENT;
00079     _con[cid].func = func;
00080     return cid;
00081 }
00082 
00083 int WizFi310::listen (Protocol proto, int port, void(*func)(int))
00084 {
00085     int cid;
00086 
00087     if(!isAssociated() || _state.status != STAT_READY)  return -1;
00088 
00089     _state.cid = -1;
00090 
00091     if(proto == PROTO_TCP)
00092     {
00093         if( sendCommand("AT+MEVTMSG=1") )   return -1;
00094         if( cmdSCON("O","TSN",port) )       return -1;
00095     }
00096     else
00097     {
00098         if( cmdSCON("O","USN",port) )   return -1;
00099     }
00100 
00101     if (_state.cid < 0) return -1;
00102     cid = _state.cid;
00103     _con[cid].protocol = proto;
00104     _con[cid].type = TYPE_SERVER;
00105     _con[cid].func = func;
00106 
00107     return cid;
00108 }
00109 
00110 int WizFi310::close (int cid)
00111 {
00112 //    if(!isConnected(cid))   return -1;
00113 
00114     _con[cid].connected = false;
00115     return cmdCLOSE(cid);
00116 }
00117 
00118 
00119 void WizFi310::initCon ( int cid, bool connected )
00120 {
00121     _con[cid].parent = -1;      // It will be delete because It is not need
00122     _con[cid].func = NULL;
00123     _con[cid].accept = false;
00124 
00125 //#ifndef CFG_ENABLE_RTOS
00126     if ( _con[cid].buf == NULL )
00127     {
00128         _con[cid].buf = new CircBuffer<char>(CFG_DATA_SIZE);
00129         if ( _con[cid].buf == NULL )    error("Can't allocate memory");
00130     }
00131 //#endif
00132     if ( _con[cid].buf != NULL )
00133     {
00134         _con[cid].buf->flush();
00135     }
00136     _con[cid].connected = connected;
00137 }
00138 
00139 int WizFi310::send(int cid, const char *buf, int len)
00140 {
00141     if(!isConnected(cid)) return -1;
00142 
00143     if((_con[cid].protocol == PROTO_TCP) ||
00144             (_con[cid].protocol == PROTO_UDP && _con[cid].type == TYPE_CLIENT) )
00145     {
00146 //        if ( len > CFG_DATA_SIZE)   len = CFG_DATA_SIZE;
00147         return cmdSSEND(buf,cid,len);
00148     }
00149     else
00150     {
00151         return -1;
00152     }
00153 }
00154 
00155 int WizFi310::sendto (int cid, const char *buf, int len, const char *ip, int port)
00156 {
00157     if(!isConnected(cid))   return -1;
00158 
00159     if((_con[cid].protocol == PROTO_UDP && _con[cid].type == TYPE_SERVER))
00160     {
00161         if ( len > CFG_DATA_SIZE )  len = CFG_DATA_SIZE;
00162         return cmdSSEND(buf,cid,len,ip,port);
00163     }
00164     else
00165     {
00166         return -1;
00167     }
00168 }
00169 
00170 int WizFi310::recv (int cid, char *buf, int len)
00171 {
00172     int i;
00173 
00174     if (!isConnected(cid))  return -1;
00175     
00176     if (_con[cid].buf == NULL ) return 0;
00177 
00178     while (!_con[cid].received && _state.mode != MODE_COMMAND);
00179     _con[cid].received = false;
00180     
00181     for(i=0; i<len; i++)
00182     {
00183         if(_con[cid].buf->dequeue(&buf[i]) == false)    break;
00184     }
00185     
00186     setRts(true);       // release
00187     return i;
00188 }
00189 
00190 int WizFi310::recvfrom (int cid, char *buf, int len, char *ip, int *port)
00191 {
00192     int i;
00193 
00194     if (!isConnected(cid))  return -1;
00195 
00196     if (_con[cid].buf == NULL)  return 0;
00197 
00198     while (!_con[cid].received && _state.mode != MODE_COMMAND);
00199 
00200     _con[cid].received = false;
00201     for(i=0; i<len; i++)
00202     {
00203         if( _con[cid].buf->dequeue(&buf[i]) == false )  break;
00204     }
00205     //buf[i] = '\0';
00206     strncpy(ip, _con[cid].ip, 16);
00207     *port = _con[cid].port;
00208     setRts(true);       // release
00209 
00210     return i;
00211 }
00212 
00213 int WizFi310::readable (int cid)
00214 {
00215     if (!isConnected(cid))  return -1;
00216 
00217     if(_con[cid].buf == NULL)   return -1;
00218     return _con[cid].buf->available();
00219 }
00220 
00221 bool WizFi310::isConnected (int cid)
00222 {
00223     if ( cid < 0 || cid >=8 ) return false;
00224     //printf("%d %d\r\n", cid, _con[cid].connected);
00225     return _con[cid].connected;
00226 }
00227 
00228 int WizFi310::accept (int cid)
00229 {
00230     if(!isConnected(cid))   return -1;
00231 
00232     if(_con[cid].connected && _con[cid].accept)
00233     {
00234         _con[cid].accept = false;
00235         return cid;
00236     }
00237 
00238     return -1;
00239 }
00240 
00241 
00242 int WizFi310::getRemote(int cid, char **ip, int *port)
00243 {
00244     if (!isConnected(cid))  return -1;
00245 
00246     *ip = _con[cid].ip;
00247     *port = _con[cid].port;
00248     return 0;
00249 }