Henry Leinen / WiflyInterface

Forked mbed official WiflyInterface (interface for Roving Networks Wifly modules) which includes the possibility to use TCPSocketServer::accept as a non-blocking cal.

Dependents:   WiFlyHTTPServerSample MultiThreadingHTTPServer

Fork of WiflyInterface by mbed official

Wifly/Wifly.cpp@8:ac134ae11893, 2013-06-02 (annotated)

Committer:
leihen
Date:
Sun Jun 02 00:26:25 2013 +0000
Revision:
8:ac134ae11893
Parent:
7:e42b7fa7ef70
Parent:
6:120296f9f865
Child:
9:4f6f2f35a21a
Merged

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 1:fb4494783863 1 /* Copyright (C) 2012 mbed.org, MIT License
samux 1:fb4494783863 2 *
samux 1:fb4494783863 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 1:fb4494783863 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
samux 1:fb4494783863 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
samux 1:fb4494783863 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
samux 1:fb4494783863 7 * furnished to do so, subject to the following conditions:
samux 1:fb4494783863 8 *
samux 1:fb4494783863 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 1:fb4494783863 10 * substantial portions of the Software.
samux 1:fb4494783863 11 *
samux 1:fb4494783863 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 1:fb4494783863 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 1:fb4494783863 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 1:fb4494783863 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 1:fb4494783863 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 1:fb4494783863 17 */
samux 1:fb4494783863 18
samux 1:fb4494783863 19 #include "mbed.h"
samux 1:fb4494783863 20 #include "Wifly.h"
samux 1:fb4494783863 21 #include <string>
samux 1:fb4494783863 22 #include <algorithm>
samux 1:fb4494783863 23
samux 1:fb4494783863 24 //Debug is disabled by default
leihen 6:120296f9f865 25 #if (0 && !defined(TARGET_LPC11U24))
samux 1:fb4494783863 26 #define DBG(x, ...) std::printf("[Wifly : DBG]"x"\r\n", ##__VA_ARGS__);
samux 1:fb4494783863 27 #define WARN(x, ...) std::printf("[Wifly : WARN]"x"\r\n", ##__VA_ARGS__);
samux 1:fb4494783863 28 #define ERR(x, ...) std::printf("[Wifly : ERR]"x"\r\n", ##__VA_ARGS__);
samux 1:fb4494783863 29 #else
samux 1:fb4494783863 30 #define DBG(x, ...)
samux 1:fb4494783863 31 #define WARN(x, ...)
samux 1:fb4494783863 32 #define ERR(x, ...)
samux 1:fb4494783863 33 #endif
samux 1:fb4494783863 34
samux 2:8e54830d0df7 35 #if !defined(TARGET_LPC11U24)
samux 1:fb4494783863 36 #define INFO(x, ...) printf("[Wifly : INFO]"x"\r\n", ##__VA_ARGS__);
samux 1:fb4494783863 37 #else
samux 1:fb4494783863 38 #define INFO(x, ...)
samux 1:fb4494783863 39 #endif
samux 1:fb4494783863 40
samux 1:fb4494783863 41 #define MAX_TRY_JOIN 3
samux 1:fb4494783863 42
leihen 7:e42b7fa7ef70 43 const int std_baudrates[] = { 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600 };
leihen 7:e42b7fa7ef70 44
leihen 7:e42b7fa7ef70 45
samux 1:fb4494783863 46 Wifly * Wifly::inst;
samux 1:fb4494783863 47
leihen 7:e42b7fa7ef70 48 Wifly::Wifly( PinName tx, PinName rx, PinName _reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec, WiflyBaudrate_t baud):
leihen 7:e42b7fa7ef70 49 wifi(tx, rx), reset_pin(_reset), tcp_status(tcp_status), buf_wifly(512), m_baudrate(baud)
samux 1:fb4494783863 50 {
samux 1:fb4494783863 51 memset(&state, 0, sizeof(state));
samux 1:fb4494783863 52 state.sec = sec;
samux 1:fb4494783863 53
samux 1:fb4494783863 54 // change all ' ' in '$' in the ssid and the passphrase
samux 1:fb4494783863 55 strcpy(this->ssid, ssid);
samux 1:fb4494783863 56 for (int i = 0; i < strlen(ssid); i++) {
samux 1:fb4494783863 57 if (this->ssid[i] == ' ')
samux 1:fb4494783863 58 this->ssid[i] = '$';
samux 1:fb4494783863 59 }
samux 1:fb4494783863 60 strcpy(this->phrase, phrase);
samux 1:fb4494783863 61 for (int i = 0; i < strlen(phrase); i++) {
samux 1:fb4494783863 62 if (this->phrase[i] == ' ')
samux 1:fb4494783863 63 this->phrase[i] = '$';
samux 1:fb4494783863 64 }
samux 1:fb4494783863 65
samux 1:fb4494783863 66 inst = this;
samux 1:fb4494783863 67 attach_rx(false);
samux 1:fb4494783863 68 state.cmd_mode = false;
leihen 7:e42b7fa7ef70 69
leihen 7:e42b7fa7ef70 70 reset();
samux 1:fb4494783863 71 }
samux 1:fb4494783863 72
samux 1:fb4494783863 73 bool Wifly::join()
samux 1:fb4494783863 74 {
leihen 7:e42b7fa7ef70 75 char cmd[50];
leihen 7:e42b7fa7ef70 76
leihen 7:e42b7fa7ef70 77 setBaudRate(std_baudrates[m_baudrate]);
samux 1:fb4494783863 78
samux 1:fb4494783863 79 for (int i= 0; i < MAX_TRY_JOIN; i++) {
samux 2:8e54830d0df7 80
samux 2:8e54830d0df7 81 // no auto join
samux 2:8e54830d0df7 82 if (!sendCommand("set w j 0\r", "AOK"))
samux 2:8e54830d0df7 83 continue;
samux 2:8e54830d0df7 84
samux 2:8e54830d0df7 85 //no echo
samux 2:8e54830d0df7 86 if (!sendCommand("set u m 1\r", "AOK"))
samux 2:8e54830d0df7 87 continue;
samux 2:8e54830d0df7 88
samux 1:fb4494783863 89 // set time
samux 4:0bcec6272784 90 if (!sendCommand("set c t 30\r", "AOK"))
samux 1:fb4494783863 91 continue;
samux 1:fb4494783863 92
samux 1:fb4494783863 93 // set size
samux 4:0bcec6272784 94 if (!sendCommand("set c s 1024\r", "AOK"))
samux 1:fb4494783863 95 continue;
samux 1:fb4494783863 96
samux 1:fb4494783863 97 // red led on when tcp connection active
samux 1:fb4494783863 98 if (!sendCommand("set s i 0x40\r", "AOK"))
samux 1:fb4494783863 99 continue;
samux 1:fb4494783863 100
samux 1:fb4494783863 101 // no string sent to the tcp client
samux 1:fb4494783863 102 if (!sendCommand("set c r 0\r", "AOK"))
samux 1:fb4494783863 103 continue;
samux 1:fb4494783863 104
samux 1:fb4494783863 105 // tcp protocol
samux 1:fb4494783863 106 if (!sendCommand("set i p 2\r", "AOK"))
samux 1:fb4494783863 107 continue;
samux 1:fb4494783863 108
samux 1:fb4494783863 109 // tcp retry
samux 1:fb4494783863 110 if (!sendCommand("set i f 0x7\r", "AOK"))
samux 1:fb4494783863 111 continue;
samux 2:8e54830d0df7 112
samux 2:8e54830d0df7 113 // set dns server
samux 2:8e54830d0df7 114 if (!sendCommand("set d n rn.microchip.com\r", "AOK"))
samux 1:fb4494783863 115 continue;
samux 1:fb4494783863 116
samux 1:fb4494783863 117 //dhcp
samux 1:fb4494783863 118 sprintf(cmd, "set i d %d\r", (state.dhcp) ? 1 : 0);
samux 1:fb4494783863 119 if (!sendCommand(cmd, "AOK"))
samux 1:fb4494783863 120 continue;
samux 1:fb4494783863 121
samux 1:fb4494783863 122 // ssid
leihen 5:48d55083d2ff 123 sprintf(cmd, "set wlan ssid %s\r", ssid);
samux 1:fb4494783863 124 if (!sendCommand(cmd, "AOK"))
samux 1:fb4494783863 125 continue;
samux 1:fb4494783863 126
samux 1:fb4494783863 127 //auth
samux 1:fb4494783863 128 sprintf(cmd, "set w a %d\r", state.sec);
samux 1:fb4494783863 129 if (!sendCommand(cmd, "AOK"))
samux 1:fb4494783863 130 continue;
samux 1:fb4494783863 131
samux 1:fb4494783863 132 // if no dhcp, set ip, netmask and gateway
samux 1:fb4494783863 133 if (!state.dhcp) {
samux 1:fb4494783863 134 DBG("not dhcp\r");
samux 1:fb4494783863 135
samux 1:fb4494783863 136 sprintf(cmd, "set i a %s\r\n", ip);
samux 1:fb4494783863 137 if (!sendCommand(cmd, "AOK"))
samux 1:fb4494783863 138 continue;
samux 1:fb4494783863 139
samux 1:fb4494783863 140 sprintf(cmd, "set i n %s\r", netmask);
samux 1:fb4494783863 141 if (!sendCommand(cmd, "AOK"))
samux 1:fb4494783863 142 continue;
samux 1:fb4494783863 143
samux 1:fb4494783863 144 sprintf(cmd, "set i g %s\r", gateway);
samux 1:fb4494783863 145 if (!sendCommand(cmd, "AOK"))
samux 1:fb4494783863 146 continue;
samux 1:fb4494783863 147 }
samux 1:fb4494783863 148
samux 1:fb4494783863 149 //key step
samux 1:fb4494783863 150 if (state.sec != NONE) {
samux 1:fb4494783863 151 if (state.sec == WPA)
samux 1:fb4494783863 152 sprintf(cmd, "set w p %s\r", phrase);
samux 1:fb4494783863 153 else if (state.sec == WEP_128)
samux 1:fb4494783863 154 sprintf(cmd, "set w k %s\r", phrase);
samux 1:fb4494783863 155
samux 1:fb4494783863 156 if (!sendCommand(cmd, "AOK"))
samux 1:fb4494783863 157 continue;
samux 1:fb4494783863 158 }
samux 1:fb4494783863 159
samux 2:8e54830d0df7 160 //join the network (10s timeout)
samux 1:fb4494783863 161 if (state.dhcp) {
samux 2:8e54830d0df7 162 if (!sendCommand("join\r", "DHCP=ON", NULL, 10000))
samux 2:8e54830d0df7 163 continue;
samux 2:8e54830d0df7 164 } else {
samux 2:8e54830d0df7 165 if (!sendCommand("join\r", "Associated", NULL, 10000))
samux 1:fb4494783863 166 continue;
samux 1:fb4494783863 167 }
leihen 5:48d55083d2ff 168
leihen 7:e42b7fa7ef70 169 enableTime(1);
leihen 7:e42b7fa7ef70 170
samux 2:8e54830d0df7 171 if (!sendCommand("save\r", "Stor"))
samux 2:8e54830d0df7 172 continue;
samux 2:8e54830d0df7 173
samux 1:fb4494783863 174 exit();
samux 1:fb4494783863 175
samux 1:fb4494783863 176 state.associated = true;
samux 1:fb4494783863 177 INFO("\r\nssid: %s\r\nphrase: %s\r\nsecurity: %s\r\n\r\n", this->ssid, this->phrase, getStringSecurity());
samux 1:fb4494783863 178 return true;
samux 1:fb4494783863 179 }
samux 1:fb4494783863 180 return false;
samux 1:fb4494783863 181 }
samux 1:fb4494783863 182
leihen 7:e42b7fa7ef70 183 int Wifly::enableTime(int minutes, const char* ntp_address)
leihen 7:e42b7fa7ef70 184 {
leihen 7:e42b7fa7ef70 185 char cmd[30];
leihen 7:e42b7fa7ef70 186
leihen 7:e42b7fa7ef70 187 //let module automatically conntect to timeserver and get the actual time
leihen 7:e42b7fa7ef70 188 sprintf(cmd, "set t e %d\r", minutes);
leihen 7:e42b7fa7ef70 189 if (!sendCommand(cmd, "AOK")) {
leihen 7:e42b7fa7ef70 190 ERR("Failed to modify time function !");
leihen 7:e42b7fa7ef70 191 return -1;
leihen 7:e42b7fa7ef70 192 }
leihen 7:e42b7fa7ef70 193
leihen 7:e42b7fa7ef70 194 //set the NTP server address
leihen 7:e42b7fa7ef70 195 sprintf(cmd, "set t a %s\r", ntp_address);
leihen 7:e42b7fa7ef70 196 if (!sendCommand(cmd, "AOK")) {
leihen 7:e42b7fa7ef70 197 ERR("Failed to modify time server address !");
leihen 7:e42b7fa7ef70 198 }
leihen 7:e42b7fa7ef70 199
leihen 7:e42b7fa7ef70 200 if (!sendCommand("set option format 1\r", "AOK")) {
leihen 7:e42b7fa7ef70 201 ERR("Failed to set option format to ASCII !");
leihen 7:e42b7fa7ef70 202 }
leihen 7:e42b7fa7ef70 203
leihen 7:e42b7fa7ef70 204 if (!sendCommand("set time zone 0\r", "AOK")) {
leihen 7:e42b7fa7ef70 205 ERR("Failed to set time zone !");
leihen 7:e42b7fa7ef70 206 }
leihen 7:e42b7fa7ef70 207
leihen 7:e42b7fa7ef70 208 sendCommand("time\r", NULL, NULL);
leihen 7:e42b7fa7ef70 209
leihen 7:e42b7fa7ef70 210 flush();
leihen 7:e42b7fa7ef70 211
leihen 7:e42b7fa7ef70 212 exit();
leihen 7:e42b7fa7ef70 213
leihen 7:e42b7fa7ef70 214 return 0;
leihen 7:e42b7fa7ef70 215 }
leihen 7:e42b7fa7ef70 216
leihen 7:e42b7fa7ef70 217 string Wifly::getTime(bool uptime)
leihen 7:e42b7fa7ef70 218 {
leihen 7:e42b7fa7ef70 219 char buf[100];
leihen 7:e42b7fa7ef70 220
leihen 7:e42b7fa7ef70 221 sendCommand("time\r", NULL, NULL, 10000);
leihen 7:e42b7fa7ef70 222 if (!sendCommand("show time\r", NULL, buf, 10000))
leihen 7:e42b7fa7ef70 223 return "";
leihen 7:e42b7fa7ef70 224 INFO("\r\nReceived Time : %s\r\n", buf);
leihen 7:e42b7fa7ef70 225
leihen 7:e42b7fa7ef70 226 exit();
leihen 7:e42b7fa7ef70 227 return buf;
leihen 7:e42b7fa7ef70 228 }
leihen 7:e42b7fa7ef70 229
leihen 7:e42b7fa7ef70 230 bool Wifly::setBaudRate(int baud)
leihen 7:e42b7fa7ef70 231 {
leihen 7:e42b7fa7ef70 232 char str[35];
leihen 7:e42b7fa7ef70 233 bool bfound = false;
leihen 7:e42b7fa7ef70 234
leihen 7:e42b7fa7ef70 235 INFO("Trying baudrates.\n");
leihen 7:e42b7fa7ef70 236 sprintf(str, "set uart raw %d\r", baud);
leihen 7:e42b7fa7ef70 237 for( int i = 0 ; i < sizeof(std_baudrates)/sizeof(int) ; i++) {
leihen 7:e42b7fa7ef70 238 // try all standard baudrates until the correct one is found
leihen 7:e42b7fa7ef70 239 INFO("Trying at %d baud\n", std_baudrates[i]);
leihen 7:e42b7fa7ef70 240 wifi.baud(std_baudrates[i]);
leihen 7:e42b7fa7ef70 241 if (sendCommand(str, "AOK")) {
leihen 7:e42b7fa7ef70 242 bfound = true;
leihen 7:e42b7fa7ef70 243 break;
leihen 7:e42b7fa7ef70 244 }
leihen 7:e42b7fa7ef70 245 }
leihen 7:e42b7fa7ef70 246
leihen 7:e42b7fa7ef70 247 if (bfound) {
leihen 7:e42b7fa7ef70 248 wait(0.05);
leihen 7:e42b7fa7ef70 249 if (!sendCommand("save\r", "STOR"))
leihen 7:e42b7fa7ef70 250 return false;
leihen 7:e42b7fa7ef70 251
leihen 7:e42b7fa7ef70 252 reboot();
leihen 7:e42b7fa7ef70 253
leihen 7:e42b7fa7ef70 254 wifi.baud(baud);
leihen 7:e42b7fa7ef70 255 }
leihen 7:e42b7fa7ef70 256 return true;
leihen 7:e42b7fa7ef70 257 }
samux 1:fb4494783863 258
samux 1:fb4494783863 259 bool Wifly::setProtocol(Protocol p)
samux 1:fb4494783863 260 {
samux 1:fb4494783863 261 // use udp auto pairing
samux 1:fb4494783863 262 char cmd[20];
samux 1:fb4494783863 263 sprintf(cmd, "set i p %d\r", p);
samux 1:fb4494783863 264 if (!sendCommand(cmd, "AOK"))
samux 1:fb4494783863 265 return false;
samux 1:fb4494783863 266
samux 1:fb4494783863 267 switch(p) {
samux 1:fb4494783863 268 case TCP:
samux 1:fb4494783863 269 // set ip flags: tcp retry enabled
samux 1:fb4494783863 270 if (!sendCommand("set i f 0x07\r", "AOK"))
samux 1:fb4494783863 271 return false;
samux 1:fb4494783863 272 break;
samux 1:fb4494783863 273 case UDP:
samux 1:fb4494783863 274 // set ip flags: udp auto pairing enabled
samux 1:fb4494783863 275 if (!sendCommand("set i h 0.0.0.0\r", "AOK"))
samux 1:fb4494783863 276 return false;
samux 4:0bcec6272784 277 if (!sendCommand("set i f 0x40\r", "AOK"))
samux 1:fb4494783863 278 return false;
samux 1:fb4494783863 279 break;
samux 1:fb4494783863 280 }
samux 1:fb4494783863 281 state.proto = p;
samux 1:fb4494783863 282 return true;
samux 1:fb4494783863 283 }
samux 1:fb4494783863 284
samux 1:fb4494783863 285 char * Wifly::getStringSecurity()
samux 1:fb4494783863 286 {
samux 1:fb4494783863 287 switch(state.sec) {
samux 1:fb4494783863 288 case NONE:
samux 1:fb4494783863 289 return "NONE";
samux 1:fb4494783863 290 case WEP_128:
samux 1:fb4494783863 291 return "WEP_128";
samux 1:fb4494783863 292 case WPA:
samux 1:fb4494783863 293 return "WPA";
samux 1:fb4494783863 294 }
samux 1:fb4494783863 295 return "UNKNOWN";
samux 1:fb4494783863 296 }
samux 1:fb4494783863 297
samux 1:fb4494783863 298 bool Wifly::connect(const char * host, int port)
samux 1:fb4494783863 299 {
samux 1:fb4494783863 300 char rcv[20];
leihen 7:e42b7fa7ef70 301 char cmd[50];
samux 1:fb4494783863 302
samux 2:8e54830d0df7 303 // try to open
samux 2:8e54830d0df7 304 sprintf(cmd, "open %s %d\r", host, port);
samux 2:8e54830d0df7 305 if (sendCommand(cmd, "OPEN", NULL, 10000)) {
samux 2:8e54830d0df7 306 state.tcp = true;
samux 2:8e54830d0df7 307 state.cmd_mode = false;
samux 2:8e54830d0df7 308 return true;
samux 1:fb4494783863 309 }
samux 1:fb4494783863 310
samux 2:8e54830d0df7 311 // if failed, retry and parse the response
samux 2:8e54830d0df7 312 if (sendCommand(cmd, NULL, rcv, 5000)) {
samux 1:fb4494783863 313 if (strstr(rcv, "OPEN") == NULL) {
samux 1:fb4494783863 314 if (strstr(rcv, "Connected") != NULL) {
samux 2:8e54830d0df7 315 wait(0.25);
samux 1:fb4494783863 316 if (!sendCommand("close\r", "CLOS"))
samux 1:fb4494783863 317 return false;
samux 2:8e54830d0df7 318 wait(0.25);
samux 2:8e54830d0df7 319 if (!sendCommand(cmd, "OPEN", NULL, 10000))
samux 1:fb4494783863 320 return false;
samux 1:fb4494783863 321 } else {
samux 1:fb4494783863 322 return false;
samux 1:fb4494783863 323 }
samux 1:fb4494783863 324 }
samux 1:fb4494783863 325 } else {
samux 1:fb4494783863 326 return false;
samux 1:fb4494783863 327 }
samux 2:8e54830d0df7 328
samux 1:fb4494783863 329 state.tcp = true;
samux 1:fb4494783863 330 state.cmd_mode = false;
samux 1:fb4494783863 331
samux 1:fb4494783863 332 return true;
samux 1:fb4494783863 333 }
samux 1:fb4494783863 334
samux 1:fb4494783863 335
samux 1:fb4494783863 336 bool Wifly::gethostbyname(const char * host, char * ip)
samux 1:fb4494783863 337 {
samux 1:fb4494783863 338 string h = host;
samux 1:fb4494783863 339 char cmd[30], rcv[100];
samux 1:fb4494783863 340 int l = 0;
samux 1:fb4494783863 341 char * point;
samux 1:fb4494783863 342 int nb_digits = 0;
samux 1:fb4494783863 343
samux 1:fb4494783863 344 // no dns needed
samux 1:fb4494783863 345 int pos = h.find(".");
samux 1:fb4494783863 346 if (pos != string::npos) {
samux 1:fb4494783863 347 string sub = h.substr(0, h.find("."));
samux 1:fb4494783863 348 nb_digits = atoi(sub.c_str());
samux 1:fb4494783863 349 }
samux 1:fb4494783863 350 //printf("substrL %s\r\n", sub.c_str());
samux 1:fb4494783863 351 if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) {
samux 1:fb4494783863 352 strcpy(ip, host);
samux 1:fb4494783863 353 }
samux 1:fb4494783863 354 // dns needed
samux 1:fb4494783863 355 else {
samux 1:fb4494783863 356 nb_digits = 0;
samux 1:fb4494783863 357 sprintf(cmd, "lookup %s\r", host);
samux 1:fb4494783863 358 if (!sendCommand(cmd, NULL, rcv))
samux 1:fb4494783863 359 return false;
samux 1:fb4494783863 360
samux 1:fb4494783863 361 // look for the ip address
samux 1:fb4494783863 362 char * begin = strstr(rcv, "=") + 1;
samux 1:fb4494783863 363 for (int i = 0; i < 3; i++) {
samux 1:fb4494783863 364 point = strstr(begin + l, ".");
samux 1:fb4494783863 365 DBG("str: %s", begin + l);
samux 1:fb4494783863 366 l += point - (begin + l) + 1;
samux 1:fb4494783863 367 }
samux 1:fb4494783863 368 DBG("str: %s", begin + l);
samux 1:fb4494783863 369 while(*(begin + l + nb_digits) >= '0' && *(begin + l + nb_digits) <= '9') {
samux 1:fb4494783863 370 DBG("digit: %c", *(begin + l + nb_digits));
samux 1:fb4494783863 371 nb_digits++;
samux 1:fb4494783863 372 }
samux 1:fb4494783863 373 memcpy(ip, begin, l + nb_digits);
samux 1:fb4494783863 374 ip[l+nb_digits] = 0;
samux 1:fb4494783863 375 DBG("ip from dns: %s", ip);
samux 1:fb4494783863 376 }
samux 1:fb4494783863 377 return true;
samux 1:fb4494783863 378 }
samux 1:fb4494783863 379
samux 1:fb4494783863 380
samux 1:fb4494783863 381 void Wifly::flush()
samux 1:fb4494783863 382 {
samux 1:fb4494783863 383 buf_wifly.flush();
samux 1:fb4494783863 384 }
samux 1:fb4494783863 385
samux 1:fb4494783863 386 bool Wifly::sendCommand(const char * cmd, const char * ack, char * res, int timeout)
samux 1:fb4494783863 387 {
samux 1:fb4494783863 388 if (!state.cmd_mode) {
samux 1:fb4494783863 389 cmdMode();
samux 1:fb4494783863 390 }
samux 1:fb4494783863 391 if (send(cmd, strlen(cmd), ack, res, timeout) == -1) {
samux 1:fb4494783863 392 ERR("sendCommand: cannot %s\r\n", cmd);
samux 1:fb4494783863 393 exit();
samux 1:fb4494783863 394 return false;
samux 1:fb4494783863 395 }
samux 1:fb4494783863 396 return true;
samux 1:fb4494783863 397 }
samux 1:fb4494783863 398
samux 1:fb4494783863 399 bool Wifly::cmdMode()
samux 1:fb4494783863 400 {
samux 1:fb4494783863 401 // if already in cmd mode, return
samux 1:fb4494783863 402 if (state.cmd_mode)
samux 1:fb4494783863 403 return true;
samux 2:8e54830d0df7 404
samux 1:fb4494783863 405 if (send("$$$", 3, "CMD") == -1) {
samux 1:fb4494783863 406 ERR("cannot enter in cmd mode\r\n");
samux 2:8e54830d0df7 407 exit();
samux 1:fb4494783863 408 return false;
samux 1:fb4494783863 409 }
samux 1:fb4494783863 410 state.cmd_mode = true;
samux 1:fb4494783863 411 return true;
samux 1:fb4494783863 412 }
samux 1:fb4494783863 413
samux 1:fb4494783863 414 bool Wifly::disconnect()
samux 1:fb4494783863 415 {
samux 1:fb4494783863 416 // if already disconnected, return
samux 1:fb4494783863 417 if (!state.associated)
samux 1:fb4494783863 418 return true;
samux 2:8e54830d0df7 419
samux 1:fb4494783863 420 if (!sendCommand("leave\r", "DeAuth"))
samux 1:fb4494783863 421 return false;
samux 1:fb4494783863 422 exit();
samux 2:8e54830d0df7 423
samux 1:fb4494783863 424 state.associated = false;
samux 1:fb4494783863 425 return true;
samux 1:fb4494783863 426
samux 1:fb4494783863 427 }
samux 1:fb4494783863 428
samux 1:fb4494783863 429 bool Wifly::is_connected()
samux 1:fb4494783863 430 {
samux 1:fb4494783863 431 return (tcp_status.read() == 1) ? true : false;
samux 1:fb4494783863 432 }
samux 1:fb4494783863 433
samux 1:fb4494783863 434
samux 1:fb4494783863 435 void Wifly::reset()
samux 1:fb4494783863 436 {
samux 1:fb4494783863 437 reset_pin = 0;
samux 1:fb4494783863 438 wait(0.2);
samux 1:fb4494783863 439 reset_pin = 1;
samux 1:fb4494783863 440 wait(0.2);
samux 1:fb4494783863 441 }
samux 1:fb4494783863 442
samux 3:9aa05e19c62e 443 bool Wifly::reboot()
samux 3:9aa05e19c62e 444 {
samux 3:9aa05e19c62e 445 // if already in cmd mode, return
samux 3:9aa05e19c62e 446 if (!sendCommand("reboot\r"))
samux 3:9aa05e19c62e 447 return false;
samux 3:9aa05e19c62e 448
samux 3:9aa05e19c62e 449 wait(0.3);
samux 3:9aa05e19c62e 450
samux 3:9aa05e19c62e 451 state.cmd_mode = false;
samux 3:9aa05e19c62e 452 return true;
samux 3:9aa05e19c62e 453 }
samux 3:9aa05e19c62e 454
samux 1:fb4494783863 455 bool Wifly::close()
samux 1:fb4494783863 456 {
samux 1:fb4494783863 457 // if not connected, return
samux 1:fb4494783863 458 if (!state.tcp)
samux 1:fb4494783863 459 return true;
samux 2:8e54830d0df7 460
samux 1:fb4494783863 461 wait(0.25);
samux 1:fb4494783863 462 if (!sendCommand("close\r", "CLOS"))
samux 1:fb4494783863 463 return false;
samux 1:fb4494783863 464 exit();
samux 2:8e54830d0df7 465
samux 1:fb4494783863 466 state.tcp = false;
samux 1:fb4494783863 467 return true;
samux 1:fb4494783863 468 }
samux 1:fb4494783863 469
samux 1:fb4494783863 470
samux 1:fb4494783863 471 int Wifly::putc(char c)
samux 1:fb4494783863 472 {
samux 1:fb4494783863 473 while (!wifi.writeable());
samux 1:fb4494783863 474 return wifi.putc(c);
samux 1:fb4494783863 475 }
samux 1:fb4494783863 476
samux 1:fb4494783863 477
samux 1:fb4494783863 478 bool Wifly::exit()
samux 1:fb4494783863 479 {
samux 1:fb4494783863 480 flush();
samux 1:fb4494783863 481 if (!state.cmd_mode)
samux 1:fb4494783863 482 return true;
samux 1:fb4494783863 483 if (!sendCommand("exit\r", "EXIT"))
samux 1:fb4494783863 484 return false;
samux 1:fb4494783863 485 state.cmd_mode = false;
samux 1:fb4494783863 486 flush();
samux 1:fb4494783863 487 return true;
samux 1:fb4494783863 488 }
samux 1:fb4494783863 489
samux 1:fb4494783863 490
samux 1:fb4494783863 491 int Wifly::readable()
samux 1:fb4494783863 492 {
samux 1:fb4494783863 493 return buf_wifly.available();
samux 1:fb4494783863 494 }
samux 1:fb4494783863 495
samux 1:fb4494783863 496 int Wifly::writeable()
samux 1:fb4494783863 497 {
samux 1:fb4494783863 498 return wifi.writeable();
samux 1:fb4494783863 499 }
samux 1:fb4494783863 500
samux 1:fb4494783863 501 char Wifly::getc()
samux 1:fb4494783863 502 {
samux 1:fb4494783863 503 char c;
samux 1:fb4494783863 504 while (!buf_wifly.available());
samux 1:fb4494783863 505 buf_wifly.dequeue(&c);
samux 1:fb4494783863 506 return c;
samux 1:fb4494783863 507 }
samux 1:fb4494783863 508
samux 1:fb4494783863 509 void Wifly::handler_rx(void)
samux 1:fb4494783863 510 {
samux 1:fb4494783863 511 //read characters
samux 1:fb4494783863 512 while (wifi.readable())
samux 1:fb4494783863 513 buf_wifly.queue(wifi.getc());
samux 1:fb4494783863 514 }
samux 1:fb4494783863 515
samux 1:fb4494783863 516 void Wifly::attach_rx(bool callback)
samux 1:fb4494783863 517 {
samux 1:fb4494783863 518 if (!callback)
samux 1:fb4494783863 519 wifi.attach(NULL);
samux 1:fb4494783863 520 else
samux 1:fb4494783863 521 wifi.attach(this, &Wifly::handler_rx);
samux 1:fb4494783863 522 }
samux 1:fb4494783863 523
samux 1:fb4494783863 524
samux 1:fb4494783863 525 int Wifly::send(const char * str, int len, const char * ACK, char * res, int timeout)
samux 1:fb4494783863 526 {
samux 1:fb4494783863 527 char read;
samux 1:fb4494783863 528 size_t found = string::npos;
samux 1:fb4494783863 529 string checking;
samux 1:fb4494783863 530 Timer tmr;
samux 1:fb4494783863 531 int result = 0;
samux 1:fb4494783863 532
samux 1:fb4494783863 533 DBG("will send: %s\r\n",str);
samux 1:fb4494783863 534
samux 1:fb4494783863 535 attach_rx(false);
samux 1:fb4494783863 536
samux 1:fb4494783863 537 //We flush the buffer
samux 1:fb4494783863 538 while (wifi.readable())
samux 1:fb4494783863 539 wifi.getc();
samux 1:fb4494783863 540
samux 1:fb4494783863 541 if (!ACK || !strcmp(ACK, "NO")) {
samux 1:fb4494783863 542 for (int i = 0; i < len; i++)
samux 1:fb4494783863 543 result = (putc(str[i]) == str[i]) ? result + 1 : result;
samux 1:fb4494783863 544 } else {
samux 1:fb4494783863 545 //We flush the buffer
samux 1:fb4494783863 546 while (wifi.readable())
samux 1:fb4494783863 547 wifi.getc();
samux 1:fb4494783863 548
samux 1:fb4494783863 549 tmr.start();
samux 1:fb4494783863 550 for (int i = 0; i < len; i++)
samux 1:fb4494783863 551 result = (putc(str[i]) == str[i]) ? result + 1 : result;
samux 1:fb4494783863 552
samux 1:fb4494783863 553 while (1) {
samux 1:fb4494783863 554 if (tmr.read_ms() > timeout) {
samux 1:fb4494783863 555 //We flush the buffer
samux 1:fb4494783863 556 while (wifi.readable())
samux 1:fb4494783863 557 wifi.getc();
samux 1:fb4494783863 558
samux 1:fb4494783863 559 DBG("check: %s\r\n", checking.c_str());
samux 1:fb4494783863 560
samux 1:fb4494783863 561 attach_rx(true);
samux 1:fb4494783863 562 return -1;
samux 1:fb4494783863 563 } else if (wifi.readable()) {
samux 1:fb4494783863 564 read = wifi.getc();
samux 1:fb4494783863 565 if ( read != '\r' && read != '\n') {
samux 1:fb4494783863 566 checking += read;
samux 1:fb4494783863 567 found = checking.find(ACK);
samux 1:fb4494783863 568 if (found != string::npos) {
samux 1:fb4494783863 569 wait(0.01);
samux 1:fb4494783863 570 //We flush the buffer
samux 1:fb4494783863 571 while (wifi.readable())
samux 1:fb4494783863 572 wifi.getc();
samux 1:fb4494783863 573
samux 1:fb4494783863 574 break;
samux 1:fb4494783863 575 }
samux 1:fb4494783863 576 }
samux 1:fb4494783863 577 }
samux 1:fb4494783863 578 }
samux 1:fb4494783863 579 DBG("check: %s\r\n", checking.c_str());
samux 1:fb4494783863 580
samux 1:fb4494783863 581 attach_rx(true);
samux 1:fb4494783863 582 return result;
samux 1:fb4494783863 583 }
samux 1:fb4494783863 584
samux 1:fb4494783863 585 //the user wants the result from the command (ACK == NULL, res != NULL)
samux 1:fb4494783863 586 if ( res != NULL) {
samux 1:fb4494783863 587 int i = 0;
samux 1:fb4494783863 588 Timer timeout;
samux 1:fb4494783863 589 timeout.start();
samux 1:fb4494783863 590 tmr.reset();
samux 1:fb4494783863 591 while (1) {
samux 1:fb4494783863 592 if (timeout.read() > 2) {
samux 1:fb4494783863 593 if (i == 0) {
samux 1:fb4494783863 594 res = NULL;
samux 1:fb4494783863 595 break;
samux 1:fb4494783863 596 }
samux 1:fb4494783863 597 res[i] = '\0';
samux 1:fb4494783863 598 DBG("user str 1: %s\r\n", res);
samux 1:fb4494783863 599
samux 1:fb4494783863 600 break;
samux 1:fb4494783863 601 } else {
samux 1:fb4494783863 602 if (tmr.read_ms() > 300) {
samux 1:fb4494783863 603 res[i] = '\0';
samux 1:fb4494783863 604 DBG("user str: %s\r\n", res);
samux 1:fb4494783863 605
samux 1:fb4494783863 606 break;
samux 1:fb4494783863 607 }
samux 1:fb4494783863 608 if (wifi.readable()) {
samux 1:fb4494783863 609 tmr.start();
samux 1:fb4494783863 610 read = wifi.getc();
samux 1:fb4494783863 611
samux 1:fb4494783863 612 // we drop \r and \n
samux 1:fb4494783863 613 if ( read != '\r' && read != '\n') {
samux 1:fb4494783863 614 res[i++] = read;
samux 1:fb4494783863 615 }
samux 1:fb4494783863 616 }
samux 1:fb4494783863 617 }
samux 1:fb4494783863 618 }
samux 1:fb4494783863 619 DBG("user str: %s\r\n", res);
samux 1:fb4494783863 620 }
samux 1:fb4494783863 621
samux 1:fb4494783863 622 //We flush the buffer
samux 1:fb4494783863 623 while (wifi.readable())
samux 1:fb4494783863 624 wifi.getc();
samux 1:fb4494783863 625
samux 1:fb4494783863 626 attach_rx(true);
samux 1:fb4494783863 627 DBG("result: %d\r\n", result)
samux 1:fb4494783863 628 return result;
samux 1:fb4494783863 629 }