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Fork of ESP8266Interface by ESP8266

ESP8266/ESP8266.cpp@48:03fd9333670d, 2015-06-10 (annotated)

Committer:
sarahmarshy
Date:
Wed Jun 10 15:47:33 2015 +0000
Revision:
48:03fd9333670d
Parent:
47:1f4dd0e91837
Child:
49:c5c9899c0255
ESP8266 was changing ssid spaces to "$". Unecessary. Removed this feature.

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"
michaeljkoster 13:41098c907200 20 #include "ESP8266.h"
michaeljkoster 16:3f0efaa57a12 21 #include "Endpoint.h"
samux 1:fb4494783863 22 #include <string>
samux 1:fb4494783863 23 #include <algorithm>
samux 1:fb4494783863 24
samux 1:fb4494783863 25 //Debug is disabled by default
sarahmarshy 46:913d07795182 26 #if 0
mbedAustin 42:3f62103a4f3c 27 #define DBG(x, ...) printf("[ESP8266 : DBG]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
mbedAustin 42:3f62103a4f3c 28 #define WARN(x, ...) printf("[ESP8266 : WARN]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
mbedAustin 42:3f62103a4f3c 29 #define ERR(x, ...) printf("[ESP8266 : ERR]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
samux 1:fb4494783863 30 #else
sarahmarshy 46:913d07795182 31 #define DBG(x, ...) //wait_us(10);
sarahmarshy 46:913d07795182 32 #define WARN(x, ...) //wait_us(10);
samux 1:fb4494783863 33 #define ERR(x, ...)
samux 1:fb4494783863 34 #endif
samux 1:fb4494783863 35
mbedAustin 47:1f4dd0e91837 36 #if 0
mbedAustin 42:3f62103a4f3c 37 #define INFO(x, ...) printf("[ESP8266 : INFO]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
samux 1:fb4494783863 38 #else
samux 1:fb4494783863 39 #define INFO(x, ...)
samux 1:fb4494783863 40 #endif
samux 1:fb4494783863 41
mbedAustin 30:c035696b9397 42 #define ESP_MAX_TRY_JOIN 3
mbedAustin 30:c035696b9397 43 #define ESP_MAXID 4 // the largest possible ID Value (max num of sockets possible)
samux 1:fb4494783863 44
michaeljkoster 13:41098c907200 45 ESP8266 * ESP8266::inst;
mbedAustin 29:939372104145 46 char* ip = NULL;
samux 1:fb4494783863 47
sam_grove 40:0a83315aea0a 48 ESP8266::ESP8266(PinName tx, PinName rx, PinName reset, const char *ssid, const char *phrase, uint32_t baud) :
sam_grove 40:0a83315aea0a 49 wifi(tx, rx), reset_pin(reset), buf_ESP8266(ESP_MBUFFE_MAX)
samux 1:fb4494783863 50 {
mbedAustin 36:e1545c6c2cb3 51 INFO("Initializing ESP8266 object");
samux 1:fb4494783863 52 memset(&state, 0, sizeof(state));
samux 1:fb4494783863 53
sarahmarshy 48:03fd9333670d 54
samux 1:fb4494783863 55 strcpy(this->ssid, ssid);
samux 1:fb4494783863 56 strcpy(this->phrase, phrase);
samux 1:fb4494783863 57 inst = this;
samux 1:fb4494783863 58 attach_rx(false);
mbedAustin 28:91e65e22e63a 59
mbedAustin 28:91e65e22e63a 60 wifi.baud(baud); // initial baud rate of the ESP8266
mbedAustin 28:91e65e22e63a 61
michaeljkoster 22:c4360e61486a 62 state.associated = false;
michaeljkoster 22:c4360e61486a 63 state.cmdMode = false;
samux 1:fb4494783863 64 }
samux 1:fb4494783863 65
michaeljkoster 13:41098c907200 66 bool ESP8266::join()
samux 1:fb4494783863 67 {
michaeljkoster 23:de9221771e96 68 sendCommand( "AT+CWMODE=1", "change", NULL, 1000);
michaeljkoster 16:3f0efaa57a12 69 string cmd="AT+CWJAP=\""+(string)this->ssid+"\",\""+(string)this->phrase+"\"";
mbedAustin 28:91e65e22e63a 70 if( sendCommand( cmd.c_str(), "OK", NULL, 10000) ) {
michaeljkoster 16:3f0efaa57a12 71 // successfully joined the network
samux 1:fb4494783863 72 state.associated = true;
mbedAustin 37:6887e61cf674 73 INFO("ssid: %s, phrase: %s", this->ssid, this->phrase);
samux 1:fb4494783863 74 return true;
samux 1:fb4494783863 75 }
samux 1:fb4494783863 76 return false;
samux 1:fb4494783863 77 }
samux 1:fb4494783863 78
michaeljkoster 13:41098c907200 79 bool ESP8266::connect()
samux 1:fb4494783863 80 {
mbedAustin 28:91e65e22e63a 81 sendCommand("AT+CWDHCP=1,1","OK",NULL,1000); // DHCP Enabled in Station Mode
mbedAustin 28:91e65e22e63a 82 return ESP8266::join();
samux 1:fb4494783863 83 }
samux 1:fb4494783863 84
michaeljkoster 15:37a7a56a424f 85 bool ESP8266::is_connected()
michaeljkoster 15:37a7a56a424f 86 {
michaeljkoster 15:37a7a56a424f 87 return true;
michaeljkoster 15:37a7a56a424f 88 }
michaeljkoster 15:37a7a56a424f 89
mbedAustin 30:c035696b9397 90 bool ESP8266::start(bool type,char* ip, int port, int id)
mbedAustin 30:c035696b9397 91 {
mbedAustin 30:c035696b9397 92 // Error Check
mbedAustin 30:c035696b9397 93 if(id > ESP_MAXID) {
mbedAustin 30:c035696b9397 94 ERR("startUDPMulti: max id is: %d, id given is %d",ESP_MAXID,id);
mbedAustin 30:c035696b9397 95 return false;
mbedAustin 30:c035696b9397 96 }
mbedAustin 30:c035696b9397 97 // Single Connection Mode
mbedAustin 30:c035696b9397 98 if(id < 0) {
mbedAustin 30:c035696b9397 99 DBG("Start Single Connection Mode");
mbedAustin 30:c035696b9397 100 char portstr[5];
mbedAustin 30:c035696b9397 101 char idstr[2];
mbedAustin 30:c035696b9397 102 bool check [3] = {0};
mbedAustin 30:c035696b9397 103 sprintf(idstr,"%d",id);
mbedAustin 30:c035696b9397 104 sprintf(portstr, "%d", port);
mbedAustin 30:c035696b9397 105 switch(type) {
mbedAustin 30:c035696b9397 106 case ESP_UDP_TYPE : //UDP
mbedAustin 32:cf071dc33972 107 check[0] = sendCommand(( "AT+CIPSTART=\"UDP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 30:c035696b9397 108 break;
mbedAustin 30:c035696b9397 109 case ESP_TCP_TYPE : //TCP
mbedAustin 32:cf071dc33972 110 check[0] = sendCommand(( "AT+CIPSTART=\"TCP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 30:c035696b9397 111 break;
mbedAustin 30:c035696b9397 112 default:
mbedAustin 30:c035696b9397 113 ERR("Default hit for starting connection, this shouldnt be possible!!");
mbedAustin 30:c035696b9397 114 break;
mbedAustin 30:c035696b9397 115 }
mbedAustin 30:c035696b9397 116 check[1] = sendCommand("AT+CIPMODE=1", "OK", NULL, 1000);// go into transparent mode
mbedAustin 30:c035696b9397 117 check[2] = sendCommand("AT+CIPSEND", ">", NULL, 1000);// go into transparent mode
mbedAustin 30:c035696b9397 118 // check that all commands were sucessful
mbedAustin 32:cf071dc33972 119 if(check[0] and check[1] and check[2]) {
mbedAustin 30:c035696b9397 120 state.cmdMode = false;
mbedAustin 30:c035696b9397 121 return true;
mbedAustin 30:c035696b9397 122 } else {
mbedAustin 36:e1545c6c2cb3 123 ERR("startUDPTransparent Failed for ip:%s, port:%d",ip,port);
mbedAustin 30:c035696b9397 124 return false;
mbedAustin 30:c035696b9397 125 }
mbedAustin 30:c035696b9397 126 }
mbedAustin 30:c035696b9397 127 // Multi Connection Mode
mbedAustin 30:c035696b9397 128 else {
mbedAustin 30:c035696b9397 129 //TODO: impliment Multi Connection Mode
mbedAustin 30:c035696b9397 130 ERR("Not currently Supported!");
mbedAustin 30:c035696b9397 131 return false;
mbedAustin 32:cf071dc33972 132
mbedAustin 32:cf071dc33972 133 // DBG("Start Multi Connection Mode");
mbedAustin 32:cf071dc33972 134 // char portstr[5];
mbedAustin 32:cf071dc33972 135 // char idstr[2];
mbedAustin 32:cf071dc33972 136 // bool check [3] = {0};
mbedAustin 32:cf071dc33972 137 // sprintf(idstr,"%d",id);
mbedAustin 32:cf071dc33972 138 // sprintf(portstr, "%d", port);
mbedAustin 32:cf071dc33972 139 // switch(type) {
mbedAustin 32:cf071dc33972 140 // case ESP_UDP_TYPE : //UDP
mbedAustin 32:cf071dc33972 141 // check[0] = sendCommand(( "AT+CIPSTART=" + (string) idstr + ",\"UDP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 32:cf071dc33972 142 // break;
mbedAustin 32:cf071dc33972 143 // case ESP_TCP_TYPE : //TCP
mbedAustin 32:cf071dc33972 144 // check[0] = sendCommand(( "AT+CIPSTART=" + (string) idstr + ",\"TCP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 32:cf071dc33972 145 // break;
mbedAustin 32:cf071dc33972 146 // default:
mbedAustin 32:cf071dc33972 147 // ERR("Default hit for starting connection, this shouldnt be possible!!");
mbedAustin 32:cf071dc33972 148 // break;
mbedAustin 32:cf071dc33972 149 // }
mbedAustin 30:c035696b9397 150 }
mbedAustin 30:c035696b9397 151 }
mbedAustin 30:c035696b9397 152
sarahmarshy 44:3a7b6083210b 153 bool ESP8266::startUDP(char* ip, int port, int id, int length)
mbedAustin 28:91e65e22e63a 154 {
michaeljkoster 17:d11fa4c3ac65 155 char portstr[5];
sarahmarshy 44:3a7b6083210b 156 char idstr[1];
sarahmarshy 44:3a7b6083210b 157 char lenstr[2];
sarahmarshy 44:3a7b6083210b 158
michaeljkoster 16:3f0efaa57a12 159 sprintf(portstr, "%d", port);
sarahmarshy 44:3a7b6083210b 160 sprintf(idstr, "%d", id);
sarahmarshy 44:3a7b6083210b 161 sprintf(lenstr, "%d", length);
sarahmarshy 44:3a7b6083210b 162
sarahmarshy 44:3a7b6083210b 163 sendCommand("AT+CIPMUX=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 164 sendCommand(( "AT+CIPSTART=" + string(idstr) + ",\"UDP\",\"" + (string) ip + "\"," + (string) portstr + ",1112,0").c_str(), "OK", NULL, 10000);
sarahmarshy 44:3a7b6083210b 165 sendCommand(("AT+CIPSEND=" + (string)idstr + "," + (string)lenstr).c_str(), ">", NULL, 1000);// go into transparent mode
mbedAustin 34:7ccda5d68a00 166 DBG("Data Mode\r\n");
michaeljkoster 22:c4360e61486a 167 state.cmdMode = false;
mbedAustin 28:91e65e22e63a 168
michaeljkoster 16:3f0efaa57a12 169 return true;
michaeljkoster 16:3f0efaa57a12 170 }
michaeljkoster 16:3f0efaa57a12 171
sarahmarshy 44:3a7b6083210b 172 bool ESP8266::startTCPServer(int port)
sarahmarshy 44:3a7b6083210b 173 {
sarahmarshy 44:3a7b6083210b 174 bool command_results[3];
sarahmarshy 44:3a7b6083210b 175 command_results[0]=sendCommand("AT+CWMODE=3", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 176 command_results[1]=sendCommand("AT+CIPMUX=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 177 if(port == 333){
sarahmarshy 44:3a7b6083210b 178 command_results[2]=sendCommand("AT+CIPSERVER=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 179 }
sarahmarshy 44:3a7b6083210b 180 else{
sarahmarshy 44:3a7b6083210b 181 char portstr[5];
sarahmarshy 44:3a7b6083210b 182 sprintf(portstr, "%d", port);
sarahmarshy 44:3a7b6083210b 183 command_results[2]=sendCommand(("AT+CIPSERVER=1," + (string)portstr).c_str(), "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 184 }
sarahmarshy 44:3a7b6083210b 185 //sendCommand("AT+CIFSR", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 186 DBG("Data Mode\r\n");
sarahmarshy 44:3a7b6083210b 187 state.cmdMode = false;
sarahmarshy 44:3a7b6083210b 188 if (command_results[0] and command_results[1] and command_results[2]){
sarahmarshy 44:3a7b6083210b 189 return true;
sarahmarshy 44:3a7b6083210b 190 }
sarahmarshy 44:3a7b6083210b 191 else{
sarahmarshy 44:3a7b6083210b 192 return false;
sarahmarshy 44:3a7b6083210b 193 }
sarahmarshy 44:3a7b6083210b 194 }
sarahmarshy 44:3a7b6083210b 195
michaeljkoster 15:37a7a56a424f 196 bool ESP8266::close()
michaeljkoster 15:37a7a56a424f 197 {
sam_grove 40:0a83315aea0a 198 wait(0.1f);
michaeljkoster 17:d11fa4c3ac65 199 send("+++",3);
sam_grove 40:0a83315aea0a 200 wait(1.0f);
michaeljkoster 22:c4360e61486a 201 state.cmdMode = true;
michaeljkoster 16:3f0efaa57a12 202 sendCommand("AT+CIPCLOSE","OK", NULL, 10000);
michaeljkoster 15:37a7a56a424f 203 return true;
michaeljkoster 15:37a7a56a424f 204 }
michaeljkoster 15:37a7a56a424f 205
michaeljkoster 15:37a7a56a424f 206 bool ESP8266::disconnect()
michaeljkoster 15:37a7a56a424f 207 {
michaeljkoster 15:37a7a56a424f 208 // if already disconnected, return
michaeljkoster 15:37a7a56a424f 209 if (!state.associated)
michaeljkoster 15:37a7a56a424f 210 return true;
michaeljkoster 15:37a7a56a424f 211 // send command to quit AP
mbedAustin 28:91e65e22e63a 212 sendCommand("AT+CWQAP", "OK", NULL, 10000);
michaeljkoster 15:37a7a56a424f 213 state.associated = false;
michaeljkoster 15:37a7a56a424f 214 return true;
michaeljkoster 15:37a7a56a424f 215 }
michaeljkoster 15:37a7a56a424f 216
mbedAustin 28:91e65e22e63a 217 /*
mbedAustin 28:91e65e22e63a 218 Assuming Returned data looks like this:
mbedAustin 28:91e65e22e63a 219 +CIFSR:STAIP,"192.168.11.2"
mbedAustin 28:91e65e22e63a 220 +CIFSR:STAMAC,"18:fe:34:9f:3a:f5"
mbedAustin 28:91e65e22e63a 221 grabbing IP from first set of quotation marks
mbedAustin 28:91e65e22e63a 222 */
michaeljkoster 15:37a7a56a424f 223 char* ESP8266::getIPAddress()
michaeljkoster 15:37a7a56a424f 224 {
mbedAustin 28:91e65e22e63a 225 char result[30] = {0};
mbedAustin 28:91e65e22e63a 226 int check = 0;
mbedAustin 28:91e65e22e63a 227 check = sendCommand("AT+CIFSR", NULL, result, 1000);
mbedAustin 29:939372104145 228 //pc.printf("\r\nReceivedInfo for IP Command is: %s\r\n",result);
mbedAustin 29:939372104145 229 ip = ipString;
mbedAustin 29:939372104145 230 if(check) {
mbedAustin 28:91e65e22e63a 231 // Success
mbedAustin 28:91e65e22e63a 232 string resultString(result);
mbedAustin 28:91e65e22e63a 233 uint8_t pos1 = 0, pos2 = 0;
mbedAustin 28:91e65e22e63a 234 //uint8_t pos3 = 0, pos4 = 0;
mbedAustin 28:91e65e22e63a 235 pos1 = resultString.find("+CIFSR:STAIP");
mbedAustin 28:91e65e22e63a 236 pos1 = resultString.find('"',pos1);
mbedAustin 28:91e65e22e63a 237 pos2 = resultString.find('"',pos1+1);
mbedAustin 28:91e65e22e63a 238 //pos3 = resultString.find('"',pos2+1); //would find mac address
mbedAustin 28:91e65e22e63a 239 //pos4 = resultString.find('"',pos3+1);
mbedAustin 28:91e65e22e63a 240 strncpy(ipString,resultString.substr(pos1,pos2).c_str(),sizeof(ipString));
mbedAustin 28:91e65e22e63a 241 ipString[pos2 - pos1 +1] = 0; // null terminate string correctly.
mbedAustin 42:3f62103a4f3c 242 INFO("IP: %s",ipString);
mbedAustin 29:939372104145 243 ip = ipString;
mbedAustin 29:939372104145 244
mbedAustin 29:939372104145 245 } else {
mbedAustin 28:91e65e22e63a 246 // Failure
mbedAustin 41:264902b160ea 247 ERR("getIPAddress() failed");
mbedAustin 29:939372104145 248 ip = NULL;
mbedAustin 28:91e65e22e63a 249 }
mbedAustin 29:939372104145 250 return ip;
michaeljkoster 15:37a7a56a424f 251 }
michaeljkoster 15:37a7a56a424f 252
michaeljkoster 13:41098c907200 253 bool ESP8266::gethostbyname(const char * host, char * ip)
samux 1:fb4494783863 254 {
samux 1:fb4494783863 255 string h = host;
samux 1:fb4494783863 256 int nb_digits = 0;
samux 1:fb4494783863 257
samux 1:fb4494783863 258 // no dns needed
samux 1:fb4494783863 259 int pos = h.find(".");
samux 1:fb4494783863 260 if (pos != string::npos) {
samux 1:fb4494783863 261 string sub = h.substr(0, h.find("."));
samux 1:fb4494783863 262 nb_digits = atoi(sub.c_str());
samux 1:fb4494783863 263 }
samux 1:fb4494783863 264 //printf("substrL %s\r\n", sub.c_str());
samux 1:fb4494783863 265 if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) {
samux 1:fb4494783863 266 strcpy(ip, host);
michaeljkoster 13:41098c907200 267 return true;
mbedAustin 28:91e65e22e63a 268 } else {
michaeljkoster 13:41098c907200 269 // dns needed, not currently available
mbedAustin 30:c035696b9397 270 ERR("gethostbyname(): DNS Not currently available, only use IP Addresses!");
michaeljkoster 13:41098c907200 271 return false;
michaeljkoster 13:41098c907200 272 }
michaeljkoster 13:41098c907200 273 }
samux 1:fb4494783863 274
michaeljkoster 13:41098c907200 275 void ESP8266::reset()
samux 1:fb4494783863 276 {
samux 1:fb4494783863 277 reset_pin = 0;
sam_grove 40:0a83315aea0a 278 wait_us(20);
samux 1:fb4494783863 279 reset_pin = 1;
sam_grove 40:0a83315aea0a 280 //wait(1);
sarahmarshy 46:913d07795182 281 //reset_pin = !reset_pin
michaeljkoster 24:03585a13ff3b 282 //send("+++",3);
sarahmarshy 46:913d07795182 283 wait(1);
michaeljkoster 24:03585a13ff3b 284 state.cmdMode = true;
michaeljkoster 24:03585a13ff3b 285 sendCommand("AT", "OK", NULL, 1000);
mbedAustin 28:91e65e22e63a 286 sendCommand("AT+RST", "ready", NULL, 10000);
michaeljkoster 24:03585a13ff3b 287 state.associated = false;
michaeljkoster 24:03585a13ff3b 288
samux 1:fb4494783863 289 }
samux 1:fb4494783863 290
michaeljkoster 13:41098c907200 291 bool ESP8266::reboot()
samux 3:9aa05e19c62e 292 {
michaeljkoster 16:3f0efaa57a12 293 reset();
samux 3:9aa05e19c62e 294 return true;
samux 3:9aa05e19c62e 295 }
samux 3:9aa05e19c62e 296
michaeljkoster 15:37a7a56a424f 297 void ESP8266::handler_rx(void)
samux 1:fb4494783863 298 {
michaeljkoster 15:37a7a56a424f 299 //read characters
michaeljkoster 16:3f0efaa57a12 300 char c;
mbedAustin 28:91e65e22e63a 301 while (wifi.readable()) {
michaeljkoster 16:3f0efaa57a12 302 c=wifi.getc();
michaeljkoster 16:3f0efaa57a12 303 buf_ESP8266.queue(c);
michaeljkoster 26:0d5bcb3903e2 304 //if (state.cmdMode) pc.printf("%c",c); //debug echo, needs fast serial console to prevent UART overruns
michaeljkoster 16:3f0efaa57a12 305 }
michaeljkoster 15:37a7a56a424f 306 }
michaeljkoster 15:37a7a56a424f 307
michaeljkoster 15:37a7a56a424f 308 void ESP8266::attach_rx(bool callback)
michaeljkoster 15:37a7a56a424f 309 {
sam_grove 40:0a83315aea0a 310 if (!callback) {
michaeljkoster 15:37a7a56a424f 311 wifi.attach(NULL);
sam_grove 40:0a83315aea0a 312 }
sam_grove 40:0a83315aea0a 313 else {
michaeljkoster 15:37a7a56a424f 314 wifi.attach(this, &ESP8266::handler_rx);
sam_grove 40:0a83315aea0a 315 }
samux 1:fb4494783863 316 }
samux 1:fb4494783863 317
michaeljkoster 13:41098c907200 318 int ESP8266::readable()
samux 1:fb4494783863 319 {
michaeljkoster 13:41098c907200 320 return buf_ESP8266.available();
samux 1:fb4494783863 321 }
samux 1:fb4494783863 322
michaeljkoster 13:41098c907200 323 int ESP8266::writeable()
samux 1:fb4494783863 324 {
samux 1:fb4494783863 325 return wifi.writeable();
samux 1:fb4494783863 326 }
samux 1:fb4494783863 327
michaeljkoster 13:41098c907200 328 char ESP8266::getc()
samux 1:fb4494783863 329 {
michaeljkoster 14:4d1128f72e00 330 char c=0;
michaeljkoster 13:41098c907200 331 while (!buf_ESP8266.available());
michaeljkoster 13:41098c907200 332 buf_ESP8266.dequeue(&c);
samux 1:fb4494783863 333 return c;
samux 1:fb4494783863 334 }
samux 1:fb4494783863 335
michaeljkoster 15:37a7a56a424f 336 int ESP8266::putc(char c)
samux 1:fb4494783863 337 {
michaeljkoster 20:d764237405c2 338 while (!wifi.writeable() || wifi.readable()); //wait for echoed command characters to be read first
michaeljkoster 15:37a7a56a424f 339 return wifi.putc(c);
samux 1:fb4494783863 340 }
samux 1:fb4494783863 341
michaeljkoster 15:37a7a56a424f 342 void ESP8266::flush()
samux 1:fb4494783863 343 {
michaeljkoster 15:37a7a56a424f 344 buf_ESP8266.flush();
samux 1:fb4494783863 345 }
samux 1:fb4494783863 346
michaeljkoster 16:3f0efaa57a12 347 int ESP8266::send(const char * buf, int len)
michaeljkoster 15:37a7a56a424f 348 {
mbedAustin 32:cf071dc33972 349 //TODO: need to add handler for data > 2048B, this is the max packet size of the ESP8266.
mbedAustin 43:2e326d95fe2c 350 if(len >= 2048){
mbedAustin 43:2e326d95fe2c 351 WARN("send buffer >= 2048B, need to chunk this up to be less.");
mbedAustin 43:2e326d95fe2c 352 }
michaeljkoster 16:3f0efaa57a12 353 const char* bufptr=buf;
mbedAustin 28:91e65e22e63a 354 for(int i=0; i<len; i++) {
michaeljkoster 17:d11fa4c3ac65 355 putc((int)*bufptr++);
michaeljkoster 18:60422852e99c 356 }
michaeljkoster 19:fb8d5bff2076 357 return len;
michaeljkoster 15:37a7a56a424f 358 }
samux 1:fb4494783863 359
michaeljkoster 16:3f0efaa57a12 360 bool ESP8266::sendCommand(const char * cmd, const char * ACK, char * res, int timeout)
samux 1:fb4494783863 361 {
samux 1:fb4494783863 362 char read;
samux 1:fb4494783863 363 size_t found = string::npos;
sam_grove 40:0a83315aea0a 364 string checking = "";
samux 1:fb4494783863 365 Timer tmr;
samux 1:fb4494783863 366 int result = 0;
samux 1:fb4494783863 367
mbedAustin 42:3f62103a4f3c 368 DBG("sendCmd:\t %s",cmd);
samux 1:fb4494783863 369
michaeljkoster 17:d11fa4c3ac65 370 attach_rx(true);
samux 1:fb4494783863 371
samux 1:fb4494783863 372 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 373 while (readable())
michaeljkoster 17:d11fa4c3ac65 374 getc();
mbedAustin 28:91e65e22e63a 375
samux 1:fb4494783863 376 if (!ACK || !strcmp(ACK, "NO")) {
mbedAustin 28:91e65e22e63a 377 for (int i = 0; i < strlen(cmd); i++) {
michaeljkoster 16:3f0efaa57a12 378 result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
sam_grove 40:0a83315aea0a 379 wait(0.005f); // prevents stuck recieve ready (?) need to let echoed character get read first
michaeljkoster 16:3f0efaa57a12 380 }
michaeljkoster 16:3f0efaa57a12 381 putc(13); //CR
sam_grove 40:0a83315aea0a 382 wait(0.005f); // wait for echo
michaeljkoster 16:3f0efaa57a12 383 putc(10); //LF
michaeljkoster 16:3f0efaa57a12 384
samux 1:fb4494783863 385 } else {
samux 1:fb4494783863 386 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 387 while (readable())
michaeljkoster 17:d11fa4c3ac65 388 getc();
samux 1:fb4494783863 389
samux 1:fb4494783863 390 tmr.start();
mbedAustin 28:91e65e22e63a 391 for (int i = 0; i < strlen(cmd); i++) {
michaeljkoster 16:3f0efaa57a12 392 result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
michaeljkoster 20:d764237405c2 393 wait(.005); // wait for echo
michaeljkoster 16:3f0efaa57a12 394 }
michaeljkoster 16:3f0efaa57a12 395 putc(13); //CR
sam_grove 40:0a83315aea0a 396 wait(0.005f); // wait for echo
michaeljkoster 16:3f0efaa57a12 397 putc(10); //LF
samux 1:fb4494783863 398
samux 1:fb4494783863 399 while (1) {
samux 1:fb4494783863 400 if (tmr.read_ms() > timeout) {
samux 1:fb4494783863 401 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 402 while (readable())
michaeljkoster 17:d11fa4c3ac65 403 getc();
samux 1:fb4494783863 404
mbedAustin 42:3f62103a4f3c 405 DBG("check:\t %s", checking.c_str());
samux 1:fb4494783863 406
samux 1:fb4494783863 407 attach_rx(true);
samux 1:fb4494783863 408 return -1;
michaeljkoster 17:d11fa4c3ac65 409 } else if (readable()) {
michaeljkoster 17:d11fa4c3ac65 410 read = getc();
sam_grove 40:0a83315aea0a 411 //printf("%c",read); //debug echo
samux 1:fb4494783863 412 if ( read != '\r' && read != '\n') {
samux 1:fb4494783863 413 checking += read;
samux 1:fb4494783863 414 found = checking.find(ACK);
samux 1:fb4494783863 415 if (found != string::npos) {
sam_grove 40:0a83315aea0a 416 wait(0.01f);
samux 1:fb4494783863 417
samux 1:fb4494783863 418 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 419 while (readable())
michaeljkoster 26:0d5bcb3903e2 420 read = getc();
sam_grove 40:0a83315aea0a 421 //printf("%c",read); //debug echo
samux 1:fb4494783863 422 break;
samux 1:fb4494783863 423 }
samux 1:fb4494783863 424 }
samux 1:fb4494783863 425 }
samux 1:fb4494783863 426 }
mbedAustin 36:e1545c6c2cb3 427 DBG("check: %s", checking.c_str());
samux 1:fb4494783863 428
samux 1:fb4494783863 429 attach_rx(true);
samux 1:fb4494783863 430 return result;
samux 1:fb4494783863 431 }
samux 1:fb4494783863 432
samux 1:fb4494783863 433 //the user wants the result from the command (ACK == NULL, res != NULL)
sarahmarshy 46:913d07795182 434 if (res != NULL) {
samux 1:fb4494783863 435 int i = 0;
samux 1:fb4494783863 436 Timer timeout;
samux 1:fb4494783863 437 timeout.start();
samux 1:fb4494783863 438 tmr.reset();
samux 1:fb4494783863 439 while (1) {
samux 1:fb4494783863 440 if (timeout.read() > 2) {
samux 1:fb4494783863 441 if (i == 0) {
samux 1:fb4494783863 442 res = NULL;
samux 1:fb4494783863 443 break;
samux 1:fb4494783863 444 }
samux 1:fb4494783863 445 res[i] = '\0';
mbedAustin 36:e1545c6c2cb3 446 DBG("user str 1: %s", res);
samux 1:fb4494783863 447
samux 1:fb4494783863 448 break;
samux 1:fb4494783863 449 } else {
samux 1:fb4494783863 450 if (tmr.read_ms() > 300) {
samux 1:fb4494783863 451 res[i] = '\0';
mbedAustin 36:e1545c6c2cb3 452 DBG("user str: %s", res);
samux 1:fb4494783863 453
samux 1:fb4494783863 454 break;
samux 1:fb4494783863 455 }
michaeljkoster 17:d11fa4c3ac65 456 if (readable()) {
samux 1:fb4494783863 457 tmr.start();
michaeljkoster 17:d11fa4c3ac65 458 read = getc();
samux 1:fb4494783863 459
samux 1:fb4494783863 460 // we drop \r and \n
samux 1:fb4494783863 461 if ( read != '\r' && read != '\n') {
samux 1:fb4494783863 462 res[i++] = read;
samux 1:fb4494783863 463 }
samux 1:fb4494783863 464 }
samux 1:fb4494783863 465 }
samux 1:fb4494783863 466 }
mbedAustin 36:e1545c6c2cb3 467 DBG("user str: %s", res);
samux 1:fb4494783863 468 }
samux 1:fb4494783863 469
samux 1:fb4494783863 470 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 471 while (readable())
michaeljkoster 17:d11fa4c3ac65 472 getc();
samux 1:fb4494783863 473
samux 1:fb4494783863 474 attach_rx(true);
mbedAustin 36:e1545c6c2cb3 475 DBG("result: %d", result)
samux 1:fb4494783863 476 return result;
michaeljkoster 15:37a7a56a424f 477 }