Steve Kim / ESP8266Interface

Added monitoring feature of ESP8266's UART

Dependents:   ESP8266_W7500_Example DualNetworkInterface-Basic

Fork of ESP8266Interface by ESP8266

ESP8266/ESP8266.cpp@45:c180905b5b79, 2015-06-03 (annotated)

Committer:
mbedAustin
Date:
Wed Jun 03 18:36:02 2015 +0000
Revision:
45:c180905b5b79
Parent:
43:2e326d95fe2c
Parent:
44:3a7b6083210b
Child:
46:913d07795182
merging in fixes from various members across various branches together.

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 44:3a7b6083210b 26 #if 1
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
samux 1:fb4494783863 31 #define DBG(x, ...)
samux 1:fb4494783863 32 #define WARN(x, ...)
samux 1:fb4494783863 33 #define ERR(x, ...)
samux 1:fb4494783863 34 #endif
samux 1:fb4494783863 35
mbedAustin 36:e1545c6c2cb3 36 #if 1
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
michaeljkoster 26:0d5bcb3903e2 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 }
sam_grove 40:0a83315aea0a 60
samux 1:fb4494783863 61 strcpy(this->phrase, phrase);
samux 1:fb4494783863 62 for (int i = 0; i < strlen(phrase); i++) {
samux 1:fb4494783863 63 if (this->phrase[i] == ' ')
samux 1:fb4494783863 64 this->phrase[i] = '$';
samux 1:fb4494783863 65 }
michaeljkoster 26:0d5bcb3903e2 66
samux 1:fb4494783863 67 inst = this;
samux 1:fb4494783863 68 attach_rx(false);
mbedAustin 28:91e65e22e63a 69
mbedAustin 28:91e65e22e63a 70 wifi.baud(baud); // initial baud rate of the ESP8266
mbedAustin 28:91e65e22e63a 71
michaeljkoster 22:c4360e61486a 72 state.associated = false;
michaeljkoster 22:c4360e61486a 73 state.cmdMode = false;
samux 1:fb4494783863 74 }
samux 1:fb4494783863 75
michaeljkoster 13:41098c907200 76 bool ESP8266::join()
samux 1:fb4494783863 77 {
michaeljkoster 23:de9221771e96 78 sendCommand( "AT+CWMODE=1", "change", NULL, 1000);
michaeljkoster 16:3f0efaa57a12 79 string cmd="AT+CWJAP=\""+(string)this->ssid+"\",\""+(string)this->phrase+"\"";
mbedAustin 28:91e65e22e63a 80 if( sendCommand( cmd.c_str(), "OK", NULL, 10000) ) {
michaeljkoster 16:3f0efaa57a12 81 // successfully joined the network
samux 1:fb4494783863 82 state.associated = true;
mbedAustin 37:6887e61cf674 83 INFO("ssid: %s, phrase: %s", this->ssid, this->phrase);
samux 1:fb4494783863 84 return true;
samux 1:fb4494783863 85 }
samux 1:fb4494783863 86 return false;
samux 1:fb4494783863 87 }
samux 1:fb4494783863 88
michaeljkoster 13:41098c907200 89 bool ESP8266::connect()
samux 1:fb4494783863 90 {
mbedAustin 28:91e65e22e63a 91 sendCommand("AT+CWDHCP=1,1","OK",NULL,1000); // DHCP Enabled in Station Mode
mbedAustin 28:91e65e22e63a 92 return ESP8266::join();
samux 1:fb4494783863 93 }
samux 1:fb4494783863 94
michaeljkoster 15:37a7a56a424f 95 bool ESP8266::is_connected()
michaeljkoster 15:37a7a56a424f 96 {
michaeljkoster 15:37a7a56a424f 97 return true;
michaeljkoster 15:37a7a56a424f 98 }
michaeljkoster 15:37a7a56a424f 99
mbedAustin 30:c035696b9397 100 bool ESP8266::start(bool type,char* ip, int port, int id)
mbedAustin 30:c035696b9397 101 {
mbedAustin 30:c035696b9397 102 // Error Check
mbedAustin 30:c035696b9397 103 if(id > ESP_MAXID) {
mbedAustin 30:c035696b9397 104 ERR("startUDPMulti: max id is: %d, id given is %d",ESP_MAXID,id);
mbedAustin 30:c035696b9397 105 return false;
mbedAustin 30:c035696b9397 106 }
mbedAustin 30:c035696b9397 107 // Single Connection Mode
mbedAustin 30:c035696b9397 108 if(id < 0) {
mbedAustin 30:c035696b9397 109 DBG("Start Single Connection Mode");
mbedAustin 30:c035696b9397 110 char portstr[5];
mbedAustin 30:c035696b9397 111 char idstr[2];
mbedAustin 30:c035696b9397 112 bool check [3] = {0};
mbedAustin 30:c035696b9397 113 sprintf(idstr,"%d",id);
mbedAustin 30:c035696b9397 114 sprintf(portstr, "%d", port);
mbedAustin 30:c035696b9397 115 switch(type) {
mbedAustin 30:c035696b9397 116 case ESP_UDP_TYPE : //UDP
mbedAustin 32:cf071dc33972 117 check[0] = sendCommand(( "AT+CIPSTART=\"UDP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 30:c035696b9397 118 break;
mbedAustin 30:c035696b9397 119 case ESP_TCP_TYPE : //TCP
mbedAustin 32:cf071dc33972 120 check[0] = sendCommand(( "AT+CIPSTART=\"TCP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 30:c035696b9397 121 break;
mbedAustin 30:c035696b9397 122 default:
mbedAustin 30:c035696b9397 123 ERR("Default hit for starting connection, this shouldnt be possible!!");
mbedAustin 30:c035696b9397 124 break;
mbedAustin 30:c035696b9397 125 }
mbedAustin 30:c035696b9397 126 check[1] = sendCommand("AT+CIPMODE=1", "OK", NULL, 1000);// go into transparent mode
mbedAustin 30:c035696b9397 127 check[2] = sendCommand("AT+CIPSEND", ">", NULL, 1000);// go into transparent mode
mbedAustin 30:c035696b9397 128 // check that all commands were sucessful
mbedAustin 32:cf071dc33972 129 if(check[0] and check[1] and check[2]) {
mbedAustin 30:c035696b9397 130 state.cmdMode = false;
mbedAustin 30:c035696b9397 131 return true;
mbedAustin 30:c035696b9397 132 } else {
mbedAustin 36:e1545c6c2cb3 133 ERR("startUDPTransparent Failed for ip:%s, port:%d",ip,port);
mbedAustin 30:c035696b9397 134 return false;
mbedAustin 30:c035696b9397 135 }
mbedAustin 30:c035696b9397 136 }
mbedAustin 30:c035696b9397 137 // Multi Connection Mode
mbedAustin 30:c035696b9397 138 else {
mbedAustin 30:c035696b9397 139 //TODO: impliment Multi Connection Mode
mbedAustin 30:c035696b9397 140 ERR("Not currently Supported!");
mbedAustin 30:c035696b9397 141 return false;
mbedAustin 32:cf071dc33972 142
mbedAustin 32:cf071dc33972 143 // DBG("Start Multi Connection Mode");
mbedAustin 32:cf071dc33972 144 // char portstr[5];
mbedAustin 32:cf071dc33972 145 // char idstr[2];
mbedAustin 32:cf071dc33972 146 // bool check [3] = {0};
mbedAustin 32:cf071dc33972 147 // sprintf(idstr,"%d",id);
mbedAustin 32:cf071dc33972 148 // sprintf(portstr, "%d", port);
mbedAustin 32:cf071dc33972 149 // switch(type) {
mbedAustin 32:cf071dc33972 150 // case ESP_UDP_TYPE : //UDP
mbedAustin 32:cf071dc33972 151 // check[0] = sendCommand(( "AT+CIPSTART=" + (string) idstr + ",\"UDP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 32:cf071dc33972 152 // break;
mbedAustin 32:cf071dc33972 153 // case ESP_TCP_TYPE : //TCP
mbedAustin 32:cf071dc33972 154 // check[0] = sendCommand(( "AT+CIPSTART=" + (string) idstr + ",\"TCP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 32:cf071dc33972 155 // break;
mbedAustin 32:cf071dc33972 156 // default:
mbedAustin 32:cf071dc33972 157 // ERR("Default hit for starting connection, this shouldnt be possible!!");
mbedAustin 32:cf071dc33972 158 // break;
mbedAustin 32:cf071dc33972 159 // }
mbedAustin 30:c035696b9397 160 }
mbedAustin 30:c035696b9397 161 }
mbedAustin 30:c035696b9397 162
sarahmarshy 44:3a7b6083210b 163 bool ESP8266::startUDP(char* ip, int port, int id, int length)
mbedAustin 28:91e65e22e63a 164 {
michaeljkoster 17:d11fa4c3ac65 165 char portstr[5];
sarahmarshy 44:3a7b6083210b 166 char idstr[1];
sarahmarshy 44:3a7b6083210b 167 char lenstr[2];
sarahmarshy 44:3a7b6083210b 168
michaeljkoster 16:3f0efaa57a12 169 sprintf(portstr, "%d", port);
sarahmarshy 44:3a7b6083210b 170 sprintf(idstr, "%d", id);
sarahmarshy 44:3a7b6083210b 171 sprintf(lenstr, "%d", length);
sarahmarshy 44:3a7b6083210b 172
sarahmarshy 44:3a7b6083210b 173 sendCommand("AT+CIPMUX=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 174 sendCommand(( "AT+CIPSTART=" + string(idstr) + ",\"UDP\",\"" + (string) ip + "\"," + (string) portstr + ",1112,0").c_str(), "OK", NULL, 10000);
sarahmarshy 44:3a7b6083210b 175 sendCommand(("AT+CIPSEND=" + (string)idstr + "," + (string)lenstr).c_str(), ">", NULL, 1000);// go into transparent mode
mbedAustin 34:7ccda5d68a00 176 DBG("Data Mode\r\n");
michaeljkoster 22:c4360e61486a 177 state.cmdMode = false;
mbedAustin 28:91e65e22e63a 178
michaeljkoster 16:3f0efaa57a12 179 return true;
michaeljkoster 16:3f0efaa57a12 180 }
michaeljkoster 16:3f0efaa57a12 181
sarahmarshy 44:3a7b6083210b 182 bool ESP8266::startTCPServer(int port)
sarahmarshy 44:3a7b6083210b 183 {
sarahmarshy 44:3a7b6083210b 184 bool command_results[3];
sarahmarshy 44:3a7b6083210b 185 command_results[0]=sendCommand("AT+CWMODE=3", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 186 command_results[1]=sendCommand("AT+CIPMUX=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 187 if(port == 333){
sarahmarshy 44:3a7b6083210b 188 command_results[2]=sendCommand("AT+CIPSERVER=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 189 }
sarahmarshy 44:3a7b6083210b 190 else{
sarahmarshy 44:3a7b6083210b 191 char portstr[5];
sarahmarshy 44:3a7b6083210b 192 sprintf(portstr, "%d", port);
sarahmarshy 44:3a7b6083210b 193 command_results[2]=sendCommand(("AT+CIPSERVER=1," + (string)portstr).c_str(), "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 194 }
sarahmarshy 44:3a7b6083210b 195 //sendCommand("AT+CIFSR", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 196 DBG("Data Mode\r\n");
sarahmarshy 44:3a7b6083210b 197 state.cmdMode = false;
sarahmarshy 44:3a7b6083210b 198 if (command_results[0] and command_results[1] and command_results[2]){
sarahmarshy 44:3a7b6083210b 199 return true;
sarahmarshy 44:3a7b6083210b 200 }
sarahmarshy 44:3a7b6083210b 201 else{
sarahmarshy 44:3a7b6083210b 202 return false;
sarahmarshy 44:3a7b6083210b 203 }
sarahmarshy 44:3a7b6083210b 204 }
sarahmarshy 44:3a7b6083210b 205
michaeljkoster 15:37a7a56a424f 206 bool ESP8266::close()
michaeljkoster 15:37a7a56a424f 207 {
sam_grove 40:0a83315aea0a 208 wait(0.1f);
michaeljkoster 17:d11fa4c3ac65 209 send("+++",3);
sam_grove 40:0a83315aea0a 210 wait(1.0f);
michaeljkoster 22:c4360e61486a 211 state.cmdMode = true;
michaeljkoster 16:3f0efaa57a12 212 sendCommand("AT+CIPCLOSE","OK", NULL, 10000);
michaeljkoster 15:37a7a56a424f 213 return true;
michaeljkoster 15:37a7a56a424f 214 }
michaeljkoster 15:37a7a56a424f 215
michaeljkoster 15:37a7a56a424f 216 bool ESP8266::disconnect()
michaeljkoster 15:37a7a56a424f 217 {
michaeljkoster 15:37a7a56a424f 218 // if already disconnected, return
michaeljkoster 15:37a7a56a424f 219 if (!state.associated)
michaeljkoster 15:37a7a56a424f 220 return true;
michaeljkoster 15:37a7a56a424f 221 // send command to quit AP
mbedAustin 28:91e65e22e63a 222 sendCommand("AT+CWQAP", "OK", NULL, 10000);
michaeljkoster 15:37a7a56a424f 223 state.associated = false;
michaeljkoster 15:37a7a56a424f 224 return true;
michaeljkoster 15:37a7a56a424f 225 }
michaeljkoster 15:37a7a56a424f 226
mbedAustin 28:91e65e22e63a 227 /*
mbedAustin 28:91e65e22e63a 228 Assuming Returned data looks like this:
mbedAustin 28:91e65e22e63a 229 +CIFSR:STAIP,"192.168.11.2"
mbedAustin 28:91e65e22e63a 230 +CIFSR:STAMAC,"18:fe:34:9f:3a:f5"
mbedAustin 28:91e65e22e63a 231 grabbing IP from first set of quotation marks
mbedAustin 28:91e65e22e63a 232 */
michaeljkoster 15:37a7a56a424f 233 char* ESP8266::getIPAddress()
michaeljkoster 15:37a7a56a424f 234 {
mbedAustin 28:91e65e22e63a 235 char result[30] = {0};
mbedAustin 28:91e65e22e63a 236 int check = 0;
mbedAustin 28:91e65e22e63a 237 check = sendCommand("AT+CIFSR", NULL, result, 1000);
mbedAustin 29:939372104145 238 //pc.printf("\r\nReceivedInfo for IP Command is: %s\r\n",result);
mbedAustin 29:939372104145 239 ip = ipString;
mbedAustin 29:939372104145 240 if(check) {
mbedAustin 28:91e65e22e63a 241 // Success
mbedAustin 28:91e65e22e63a 242 string resultString(result);
mbedAustin 28:91e65e22e63a 243 uint8_t pos1 = 0, pos2 = 0;
mbedAustin 28:91e65e22e63a 244 //uint8_t pos3 = 0, pos4 = 0;
mbedAustin 28:91e65e22e63a 245 pos1 = resultString.find("+CIFSR:STAIP");
mbedAustin 28:91e65e22e63a 246 pos1 = resultString.find('"',pos1);
mbedAustin 28:91e65e22e63a 247 pos2 = resultString.find('"',pos1+1);
mbedAustin 28:91e65e22e63a 248 //pos3 = resultString.find('"',pos2+1); //would find mac address
mbedAustin 28:91e65e22e63a 249 //pos4 = resultString.find('"',pos3+1);
mbedAustin 28:91e65e22e63a 250 strncpy(ipString,resultString.substr(pos1,pos2).c_str(),sizeof(ipString));
mbedAustin 28:91e65e22e63a 251 ipString[pos2 - pos1 +1] = 0; // null terminate string correctly.
mbedAustin 42:3f62103a4f3c 252 INFO("IP: %s",ipString);
mbedAustin 29:939372104145 253 ip = ipString;
mbedAustin 29:939372104145 254
mbedAustin 29:939372104145 255 } else {
mbedAustin 28:91e65e22e63a 256 // Failure
mbedAustin 41:264902b160ea 257 ERR("getIPAddress() failed");
mbedAustin 29:939372104145 258 ip = NULL;
mbedAustin 28:91e65e22e63a 259 }
mbedAustin 29:939372104145 260 return ip;
michaeljkoster 15:37a7a56a424f 261 }
michaeljkoster 15:37a7a56a424f 262
michaeljkoster 13:41098c907200 263 bool ESP8266::gethostbyname(const char * host, char * ip)
samux 1:fb4494783863 264 {
samux 1:fb4494783863 265 string h = host;
samux 1:fb4494783863 266 int nb_digits = 0;
samux 1:fb4494783863 267
samux 1:fb4494783863 268 // no dns needed
samux 1:fb4494783863 269 int pos = h.find(".");
samux 1:fb4494783863 270 if (pos != string::npos) {
samux 1:fb4494783863 271 string sub = h.substr(0, h.find("."));
samux 1:fb4494783863 272 nb_digits = atoi(sub.c_str());
samux 1:fb4494783863 273 }
samux 1:fb4494783863 274 //printf("substrL %s\r\n", sub.c_str());
samux 1:fb4494783863 275 if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) {
samux 1:fb4494783863 276 strcpy(ip, host);
michaeljkoster 13:41098c907200 277 return true;
mbedAustin 28:91e65e22e63a 278 } else {
michaeljkoster 13:41098c907200 279 // dns needed, not currently available
mbedAustin 30:c035696b9397 280 ERR("gethostbyname(): DNS Not currently available, only use IP Addresses!");
michaeljkoster 13:41098c907200 281 return false;
michaeljkoster 13:41098c907200 282 }
michaeljkoster 13:41098c907200 283 }
samux 1:fb4494783863 284
michaeljkoster 13:41098c907200 285 void ESP8266::reset()
samux 1:fb4494783863 286 {
samux 1:fb4494783863 287 reset_pin = 0;
sam_grove 40:0a83315aea0a 288 wait_us(20);
samux 1:fb4494783863 289 reset_pin = 1;
sam_grove 40:0a83315aea0a 290 //wait(1);
mbedAustin 28:91e65e22e63a 291
michaeljkoster 24:03585a13ff3b 292 //send("+++",3);
michaeljkoster 24:03585a13ff3b 293 //wait(1);
michaeljkoster 24:03585a13ff3b 294 state.cmdMode = true;
michaeljkoster 24:03585a13ff3b 295 sendCommand("AT", "OK", NULL, 1000);
mbedAustin 28:91e65e22e63a 296 sendCommand("AT+RST", "ready", NULL, 10000);
michaeljkoster 24:03585a13ff3b 297 state.associated = false;
michaeljkoster 24:03585a13ff3b 298
samux 1:fb4494783863 299 }
samux 1:fb4494783863 300
michaeljkoster 13:41098c907200 301 bool ESP8266::reboot()
samux 3:9aa05e19c62e 302 {
michaeljkoster 16:3f0efaa57a12 303 reset();
samux 3:9aa05e19c62e 304 return true;
samux 3:9aa05e19c62e 305 }
samux 3:9aa05e19c62e 306
michaeljkoster 15:37a7a56a424f 307 void ESP8266::handler_rx(void)
samux 1:fb4494783863 308 {
michaeljkoster 15:37a7a56a424f 309 //read characters
michaeljkoster 16:3f0efaa57a12 310 char c;
mbedAustin 28:91e65e22e63a 311 while (wifi.readable()) {
michaeljkoster 16:3f0efaa57a12 312 c=wifi.getc();
michaeljkoster 16:3f0efaa57a12 313 buf_ESP8266.queue(c);
michaeljkoster 26:0d5bcb3903e2 314 //if (state.cmdMode) pc.printf("%c",c); //debug echo, needs fast serial console to prevent UART overruns
michaeljkoster 16:3f0efaa57a12 315 }
michaeljkoster 15:37a7a56a424f 316 }
michaeljkoster 15:37a7a56a424f 317
michaeljkoster 15:37a7a56a424f 318 void ESP8266::attach_rx(bool callback)
michaeljkoster 15:37a7a56a424f 319 {
sam_grove 40:0a83315aea0a 320 if (!callback) {
michaeljkoster 15:37a7a56a424f 321 wifi.attach(NULL);
sam_grove 40:0a83315aea0a 322 }
sam_grove 40:0a83315aea0a 323 else {
michaeljkoster 15:37a7a56a424f 324 wifi.attach(this, &ESP8266::handler_rx);
sam_grove 40:0a83315aea0a 325 }
samux 1:fb4494783863 326 }
samux 1:fb4494783863 327
michaeljkoster 13:41098c907200 328 int ESP8266::readable()
samux 1:fb4494783863 329 {
michaeljkoster 13:41098c907200 330 return buf_ESP8266.available();
samux 1:fb4494783863 331 }
samux 1:fb4494783863 332
michaeljkoster 13:41098c907200 333 int ESP8266::writeable()
samux 1:fb4494783863 334 {
samux 1:fb4494783863 335 return wifi.writeable();
samux 1:fb4494783863 336 }
samux 1:fb4494783863 337
michaeljkoster 13:41098c907200 338 char ESP8266::getc()
samux 1:fb4494783863 339 {
michaeljkoster 14:4d1128f72e00 340 char c=0;
michaeljkoster 13:41098c907200 341 while (!buf_ESP8266.available());
michaeljkoster 13:41098c907200 342 buf_ESP8266.dequeue(&c);
samux 1:fb4494783863 343 return c;
samux 1:fb4494783863 344 }
samux 1:fb4494783863 345
michaeljkoster 15:37a7a56a424f 346 int ESP8266::putc(char c)
samux 1:fb4494783863 347 {
michaeljkoster 20:d764237405c2 348 while (!wifi.writeable() || wifi.readable()); //wait for echoed command characters to be read first
michaeljkoster 15:37a7a56a424f 349 return wifi.putc(c);
samux 1:fb4494783863 350 }
samux 1:fb4494783863 351
michaeljkoster 15:37a7a56a424f 352 void ESP8266::flush()
samux 1:fb4494783863 353 {
michaeljkoster 15:37a7a56a424f 354 buf_ESP8266.flush();
samux 1:fb4494783863 355 }
samux 1:fb4494783863 356
michaeljkoster 16:3f0efaa57a12 357 int ESP8266::send(const char * buf, int len)
michaeljkoster 15:37a7a56a424f 358 {
mbedAustin 32:cf071dc33972 359 //TODO: need to add handler for data > 2048B, this is the max packet size of the ESP8266.
mbedAustin 43:2e326d95fe2c 360 if(len >= 2048){
mbedAustin 43:2e326d95fe2c 361 WARN("send buffer >= 2048B, need to chunk this up to be less.");
mbedAustin 43:2e326d95fe2c 362 }
michaeljkoster 16:3f0efaa57a12 363 const char* bufptr=buf;
mbedAustin 28:91e65e22e63a 364 for(int i=0; i<len; i++) {
michaeljkoster 17:d11fa4c3ac65 365 putc((int)*bufptr++);
michaeljkoster 18:60422852e99c 366 }
michaeljkoster 19:fb8d5bff2076 367 return len;
michaeljkoster 15:37a7a56a424f 368 }
samux 1:fb4494783863 369
michaeljkoster 16:3f0efaa57a12 370 bool ESP8266::sendCommand(const char * cmd, const char * ACK, char * res, int timeout)
samux 1:fb4494783863 371 {
samux 1:fb4494783863 372 char read;
samux 1:fb4494783863 373 size_t found = string::npos;
sam_grove 40:0a83315aea0a 374 string checking = "";
samux 1:fb4494783863 375 Timer tmr;
samux 1:fb4494783863 376 int result = 0;
samux 1:fb4494783863 377
mbedAustin 42:3f62103a4f3c 378 DBG("sendCmd:\t %s",cmd);
samux 1:fb4494783863 379
michaeljkoster 17:d11fa4c3ac65 380 attach_rx(true);
samux 1:fb4494783863 381
samux 1:fb4494783863 382 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 383 while (readable())
michaeljkoster 17:d11fa4c3ac65 384 getc();
mbedAustin 28:91e65e22e63a 385
samux 1:fb4494783863 386 if (!ACK || !strcmp(ACK, "NO")) {
mbedAustin 28:91e65e22e63a 387 for (int i = 0; i < strlen(cmd); i++) {
michaeljkoster 16:3f0efaa57a12 388 result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
sam_grove 40:0a83315aea0a 389 wait(0.005f); // prevents stuck recieve ready (?) need to let echoed character get read first
michaeljkoster 16:3f0efaa57a12 390 }
michaeljkoster 16:3f0efaa57a12 391 putc(13); //CR
sam_grove 40:0a83315aea0a 392 wait(0.005f); // wait for echo
michaeljkoster 16:3f0efaa57a12 393 putc(10); //LF
michaeljkoster 16:3f0efaa57a12 394
samux 1:fb4494783863 395 } else {
samux 1:fb4494783863 396 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 397 while (readable())
michaeljkoster 17:d11fa4c3ac65 398 getc();
samux 1:fb4494783863 399
samux 1:fb4494783863 400 tmr.start();
mbedAustin 28:91e65e22e63a 401 for (int i = 0; i < strlen(cmd); i++) {
michaeljkoster 16:3f0efaa57a12 402 result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
michaeljkoster 20:d764237405c2 403 wait(.005); // wait for echo
michaeljkoster 16:3f0efaa57a12 404 }
michaeljkoster 16:3f0efaa57a12 405 putc(13); //CR
sam_grove 40:0a83315aea0a 406 wait(0.005f); // wait for echo
michaeljkoster 16:3f0efaa57a12 407 putc(10); //LF
samux 1:fb4494783863 408
samux 1:fb4494783863 409 while (1) {
samux 1:fb4494783863 410 if (tmr.read_ms() > timeout) {
samux 1:fb4494783863 411 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 412 while (readable())
michaeljkoster 17:d11fa4c3ac65 413 getc();
samux 1:fb4494783863 414
mbedAustin 42:3f62103a4f3c 415 DBG("check:\t %s", checking.c_str());
samux 1:fb4494783863 416
samux 1:fb4494783863 417 attach_rx(true);
samux 1:fb4494783863 418 return -1;
michaeljkoster 17:d11fa4c3ac65 419 } else if (readable()) {
michaeljkoster 17:d11fa4c3ac65 420 read = getc();
sam_grove 40:0a83315aea0a 421 //printf("%c",read); //debug echo
samux 1:fb4494783863 422 if ( read != '\r' && read != '\n') {
samux 1:fb4494783863 423 checking += read;
samux 1:fb4494783863 424 found = checking.find(ACK);
samux 1:fb4494783863 425 if (found != string::npos) {
sam_grove 40:0a83315aea0a 426 wait(0.01f);
samux 1:fb4494783863 427
samux 1:fb4494783863 428 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 429 while (readable())
michaeljkoster 26:0d5bcb3903e2 430 read = getc();
sam_grove 40:0a83315aea0a 431 //printf("%c",read); //debug echo
samux 1:fb4494783863 432 break;
samux 1:fb4494783863 433 }
samux 1:fb4494783863 434 }
samux 1:fb4494783863 435 }
samux 1:fb4494783863 436 }
mbedAustin 36:e1545c6c2cb3 437 DBG("check: %s", checking.c_str());
samux 1:fb4494783863 438
samux 1:fb4494783863 439 attach_rx(true);
samux 1:fb4494783863 440 return result;
samux 1:fb4494783863 441 }
samux 1:fb4494783863 442
samux 1:fb4494783863 443 //the user wants the result from the command (ACK == NULL, res != NULL)
samux 1:fb4494783863 444 if ( res != NULL) {
samux 1:fb4494783863 445 int i = 0;
samux 1:fb4494783863 446 Timer timeout;
samux 1:fb4494783863 447 timeout.start();
samux 1:fb4494783863 448 tmr.reset();
samux 1:fb4494783863 449 while (1) {
samux 1:fb4494783863 450 if (timeout.read() > 2) {
samux 1:fb4494783863 451 if (i == 0) {
samux 1:fb4494783863 452 res = NULL;
samux 1:fb4494783863 453 break;
samux 1:fb4494783863 454 }
samux 1:fb4494783863 455 res[i] = '\0';
mbedAustin 36:e1545c6c2cb3 456 DBG("user str 1: %s", res);
samux 1:fb4494783863 457
samux 1:fb4494783863 458 break;
samux 1:fb4494783863 459 } else {
samux 1:fb4494783863 460 if (tmr.read_ms() > 300) {
samux 1:fb4494783863 461 res[i] = '\0';
mbedAustin 36:e1545c6c2cb3 462 DBG("user str: %s", res);
samux 1:fb4494783863 463
samux 1:fb4494783863 464 break;
samux 1:fb4494783863 465 }
michaeljkoster 17:d11fa4c3ac65 466 if (readable()) {
samux 1:fb4494783863 467 tmr.start();
michaeljkoster 17:d11fa4c3ac65 468 read = getc();
samux 1:fb4494783863 469
samux 1:fb4494783863 470 // we drop \r and \n
samux 1:fb4494783863 471 if ( read != '\r' && read != '\n') {
samux 1:fb4494783863 472 res[i++] = read;
samux 1:fb4494783863 473 }
samux 1:fb4494783863 474 }
samux 1:fb4494783863 475 }
samux 1:fb4494783863 476 }
mbedAustin 36:e1545c6c2cb3 477 DBG("user str: %s", res);
samux 1:fb4494783863 478 }
samux 1:fb4494783863 479
samux 1:fb4494783863 480 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 481 while (readable())
michaeljkoster 17:d11fa4c3ac65 482 getc();
samux 1:fb4494783863 483
samux 1:fb4494783863 484 attach_rx(true);
mbedAustin 36:e1545c6c2cb3 485 DBG("result: %d", result)
samux 1:fb4494783863 486 return result;
michaeljkoster 15:37a7a56a424f 487 }