sandbox / ESP8266Interface

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Dependencies:   ESP8266

Fork of ESP8266Interface by Christopher Haster

ESP8266Interface.cpp@19:783c46b13285, 2015-07-21 (annotated)

Committer:
sarahmarshy
Date:
Tue Jul 21 19:54:52 2015 +0000
Revision:
19:783c46b13285
Parent:
18:9fc7976c7b27
Child:
20:5d0762aa4680
Working receive comman

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sarahmarshy 18:9fc7976c7b27 1 /* ESP8266Interface Example
sam_grove 11:288c15b80a26 2 * Copyright (c) 2015 ARM Limited
sam_grove 11:288c15b80a26 3 *
sam_grove 11:288c15b80a26 4 * Licensed under the Apache License, Version 2.0 (the "License");
sam_grove 11:288c15b80a26 5 * you may not use this file except in compliance with the License.
sam_grove 11:288c15b80a26 6 * You may obtain a copy of the License at
sam_grove 11:288c15b80a26 7 *
sam_grove 11:288c15b80a26 8 * http://www.apache.org/licenses/LICENSE-2.0
sam_grove 11:288c15b80a26 9 *
sam_grove 11:288c15b80a26 10 * Unless required by applicable law or agreed to in writing, software
sam_grove 11:288c15b80a26 11 * distributed under the License is distributed on an "AS IS" BASIS,
sam_grove 11:288c15b80a26 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sam_grove 11:288c15b80a26 13 * See the License for the specific language governing permissions and
sam_grove 11:288c15b80a26 14 * limitations under the License.
sam_grove 11:288c15b80a26 15 */
sam_grove 11:288c15b80a26 16
sarahmarshy 18:9fc7976c7b27 17 #include "ESP8266Interface.h"
sarahmarshy 18:9fc7976c7b27 18 #include <string>
sam_grove 11:288c15b80a26 19
sarahmarshy 18:9fc7976c7b27 20 ESP8266Interface::ESP8266Interface(PinName tx, PinName rx)
bridadan 16:b2f781416464 21 : serial(tx, rx), atParser(&serial)
sam_grove 11:288c15b80a26 22 {
sarahmarshy 18:9fc7976c7b27 23 serial.baud(115200);
sarahmarshy 18:9fc7976c7b27 24 availableID = new int[5];
sarahmarshy 18:9fc7976c7b27 25 for(int i = 0; i<4; i++){
sarahmarshy 18:9fc7976c7b27 26 availableID[i] = -1;
sarahmarshy 18:9fc7976c7b27 27 }
sam_grove 11:288c15b80a26 28 }
sam_grove 11:288c15b80a26 29
sarahmarshy 18:9fc7976c7b27 30 ESP8266Interface::ESP8266Interface(PinName tx, PinName rx, const char *ap, const char *pass_phrase, wifi_security_t security, uint32_t timeout_ms)
bridadan 16:b2f781416464 31 : serial(tx, rx), atParser(&serial)
sam_grove 11:288c15b80a26 32 {
sam_grove 11:288c15b80a26 33
sam_grove 11:288c15b80a26 34 }
sam_grove 11:288c15b80a26 35
sarahmarshy 18:9fc7976c7b27 36 int32_t ESP8266Interface::init(void)
sarahmarshy 18:9fc7976c7b27 37 {
sarahmarshy 19:783c46b13285 38 if (!(atParser.send("AT") && atParser.recv("OK")))
sarahmarshy 18:9fc7976c7b27 39 return -1;
sarahmarshy 19:783c46b13285 40 if (!(atParser.send("AT+RST") && atParser.recv("OK\r\nready")))
sarahmarshy 18:9fc7976c7b27 41 return -1;
sarahmarshy 19:783c46b13285 42 if (!(atParser.send("AT+CWMODE=3") && atParser.recv("OK")))
sarahmarshy 18:9fc7976c7b27 43 return -1;
sarahmarshy 19:783c46b13285 44 if (!(atParser.send("AT+CIPMUX=1") && atParser.recv("OK")))
sarahmarshy 18:9fc7976c7b27 45 return -1;
sarahmarshy 18:9fc7976c7b27 46 return 0;
sarahmarshy 18:9fc7976c7b27 47
sam_grove 11:288c15b80a26 48 }
sam_grove 11:288c15b80a26 49
sarahmarshy 18:9fc7976c7b27 50 int32_t ESP8266Interface::init(const char *ip, const char *mask, const char *gateway)
sam_grove 11:288c15b80a26 51 {
sam_grove 11:288c15b80a26 52 return -1;
sam_grove 11:288c15b80a26 53 }
sam_grove 11:288c15b80a26 54
sarahmarshy 18:9fc7976c7b27 55 int32_t ESP8266Interface::connect(uint32_t timeout_ms)
sam_grove 11:288c15b80a26 56 {
sam_grove 11:288c15b80a26 57 return -1;
sam_grove 11:288c15b80a26 58 }
sam_grove 11:288c15b80a26 59
sarahmarshy 18:9fc7976c7b27 60 int32_t ESP8266Interface::connect(const char *ap, const char *pass_phrase, wifi_security_t security, uint32_t timeout_ms)
sam_grove 11:288c15b80a26 61 {
sarahmarshy 19:783c46b13285 62 if (!(atParser.send("AT+CWDHCP=2,1") && atParser.recv("OK")))
sarahmarshy 18:9fc7976c7b27 63 return -1;
sarahmarshy 18:9fc7976c7b27 64 string connect_command = "AT+CWJAP=\""+(string)ap+"\",\""+(string)pass_phrase+"\"";
sarahmarshy 18:9fc7976c7b27 65 atParser.setTimeout(10000);
sarahmarshy 19:783c46b13285 66 if (!(atParser.send(connect_command.c_str()) && atParser.recv("OK"))){
sarahmarshy 18:9fc7976c7b27 67 return -1;
sarahmarshy 18:9fc7976c7b27 68 }
sarahmarshy 18:9fc7976c7b27 69 return 0;
sam_grove 11:288c15b80a26 70 }
sam_grove 11:288c15b80a26 71
sarahmarshy 18:9fc7976c7b27 72 int32_t ESP8266Interface::disconnect(void) const
sam_grove 11:288c15b80a26 73 {
sam_grove 11:288c15b80a26 74 return -1;
sam_grove 11:288c15b80a26 75 }
sam_grove 11:288c15b80a26 76
sarahmarshy 18:9fc7976c7b27 77 char *ESP8266Interface::getIPAddress(void)
sarahmarshy 18:9fc7976c7b27 78 {
sarahmarshy 18:9fc7976c7b27 79 char* ip;
sarahmarshy 19:783c46b13285 80 if (!(atParser.send("AT+CIPSTA?") && atParser.recv("+CIPSTA:\"%s\"\r\nOK", ip)))
sarahmarshy 18:9fc7976c7b27 81 return NULL;
sarahmarshy 18:9fc7976c7b27 82 return ip;
sarahmarshy 18:9fc7976c7b27 83 }
sarahmarshy 18:9fc7976c7b27 84
sarahmarshy 18:9fc7976c7b27 85 char *ESP8266Interface::getGateway(void) const
sam_grove 11:288c15b80a26 86 {
sam_grove 11:288c15b80a26 87 return 0;
sam_grove 11:288c15b80a26 88 }
sam_grove 11:288c15b80a26 89
sarahmarshy 18:9fc7976c7b27 90 char *ESP8266Interface::getNetworkMask(void) const
sam_grove 11:288c15b80a26 91 {
sam_grove 11:288c15b80a26 92 return 0;
sam_grove 11:288c15b80a26 93 }
sam_grove 11:288c15b80a26 94
sarahmarshy 18:9fc7976c7b27 95 char *ESP8266Interface::getMACAddress(void) const
sam_grove 11:288c15b80a26 96 {
sam_grove 11:288c15b80a26 97 return 0;
sam_grove 11:288c15b80a26 98 }
sam_grove 11:288c15b80a26 99
sarahmarshy 18:9fc7976c7b27 100 int32_t ESP8266Interface::isConnected(void)
sam_grove 11:288c15b80a26 101 {
sarahmarshy 18:9fc7976c7b27 102 return (getIPAddress()==NULL) ? -1 : 0;
sam_grove 11:288c15b80a26 103 }
sam_grove 11:288c15b80a26 104
sarahmarshy 18:9fc7976c7b27 105 SocketInterface *ESP8266Interface::allocateSocket(socket_protocol_t socketProtocol)
sarahmarshy 18:9fc7976c7b27 106 {
sarahmarshy 18:9fc7976c7b27 107 int id = -1;
sarahmarshy 18:9fc7976c7b27 108 uuidCounter += 1;
sarahmarshy 18:9fc7976c7b27 109 //Look through the array of available sockets for an unused ID
sarahmarshy 18:9fc7976c7b27 110 for(int i=0; i<sizeof(availableID); i++){
sarahmarshy 18:9fc7976c7b27 111 if (availableID[i] == -1){
sarahmarshy 18:9fc7976c7b27 112 id = i;
sarahmarshy 18:9fc7976c7b27 113 availableID[i] = uuidCounter;
sarahmarshy 18:9fc7976c7b27 114 break;
sarahmarshy 18:9fc7976c7b27 115 }
sarahmarshy 18:9fc7976c7b27 116 }
sarahmarshy 18:9fc7976c7b27 117 if (id == -1){
sarahmarshy 18:9fc7976c7b27 118 return NULL;//tried to allocate more than the maximum 5 sockets
sarahmarshy 18:9fc7976c7b27 119 }
sarahmarshy 18:9fc7976c7b27 120 ESP8266Socket *socket = new ESP8266Socket(uuidCounter, &atParser, socketProtocol, (uint8_t)id);
sarahmarshy 18:9fc7976c7b27 121 return socket;
sam_grove 11:288c15b80a26 122 }
sam_grove 13:0186e9e35a24 123
sarahmarshy 18:9fc7976c7b27 124 int ESP8266Interface::deallocateSocket(SocketInterface *socket)
bridadan 16:b2f781416464 125 {
sarahmarshy 18:9fc7976c7b27 126 int id = (int)static_cast<ESP8266Socket*>(socket)->getID();
sarahmarshy 18:9fc7976c7b27 127 availableID[id] = -1;
sarahmarshy 18:9fc7976c7b27 128 return id;
bridadan 16:b2f781416464 129 }
bridadan 16:b2f781416464 130
sarahmarshy 18:9fc7976c7b27 131 ESP8266Socket::ESP8266Socket(uint32_t handle, ATParser *atParser, socket_protocol_t type, uint8_t id)
sarahmarshy 18:9fc7976c7b27 132 : _handle(handle), atParser(atParser), _id(id)
sarahmarshy 18:9fc7976c7b27 133 {
sarahmarshy 18:9fc7976c7b27 134 SocketInterface::_type = type;
sarahmarshy 18:9fc7976c7b27 135 }
sarahmarshy 18:9fc7976c7b27 136
sarahmarshy 18:9fc7976c7b27 137 const char *ESP8266Socket::getHostByName(const char *name) const
sam_grove 13:0186e9e35a24 138 {
sam_grove 13:0186e9e35a24 139 return 0;
sam_grove 13:0186e9e35a24 140 }
sam_grove 13:0186e9e35a24 141
sarahmarshy 18:9fc7976c7b27 142 void ESP8266Socket::setAddress(const char* addr)
bridadan 16:b2f781416464 143 {
sarahmarshy 18:9fc7976c7b27 144 _addr = (char*)addr;
sarahmarshy 18:9fc7976c7b27 145 }
sarahmarshy 18:9fc7976c7b27 146
sarahmarshy 18:9fc7976c7b27 147 void ESP8266Socket::setPort(uint16_t port)
sarahmarshy 18:9fc7976c7b27 148 {
sarahmarshy 18:9fc7976c7b27 149 _port = port;
bridadan 16:b2f781416464 150 }
bridadan 16:b2f781416464 151
sarahmarshy 18:9fc7976c7b27 152 void ESP8266Socket::setAddressPort(const char* addr, uint16_t port)
bridadan 16:b2f781416464 153 {
sarahmarshy 18:9fc7976c7b27 154 _addr = (char*)addr;
sarahmarshy 18:9fc7976c7b27 155 _port = port;
bridadan 16:b2f781416464 156 }
bridadan 16:b2f781416464 157
sarahmarshy 18:9fc7976c7b27 158 const char *ESP8266Socket::getAddress(void) const
sarahmarshy 18:9fc7976c7b27 159 {
sarahmarshy 18:9fc7976c7b27 160 return (const char*)_addr;
sarahmarshy 18:9fc7976c7b27 161 }
sarahmarshy 18:9fc7976c7b27 162
sarahmarshy 18:9fc7976c7b27 163 uint16_t ESP8266Socket::getPort(void) const
sarahmarshy 18:9fc7976c7b27 164 {
sarahmarshy 18:9fc7976c7b27 165 return _port;
sarahmarshy 18:9fc7976c7b27 166 }
sarahmarshy 18:9fc7976c7b27 167
sarahmarshy 18:9fc7976c7b27 168
sarahmarshy 18:9fc7976c7b27 169 int32_t ESP8266Socket::bind(uint16_t port) const
sam_grove 13:0186e9e35a24 170 {
sam_grove 13:0186e9e35a24 171 return -1;
sam_grove 13:0186e9e35a24 172 }
sam_grove 13:0186e9e35a24 173
sarahmarshy 18:9fc7976c7b27 174 int32_t ESP8266Socket::listen(void) const
sam_grove 13:0186e9e35a24 175 {
sam_grove 13:0186e9e35a24 176 return -1;
sam_grove 13:0186e9e35a24 177 }
sam_grove 13:0186e9e35a24 178
sarahmarshy 18:9fc7976c7b27 179 int32_t ESP8266Socket::accept() const
sam_grove 13:0186e9e35a24 180 {
sam_grove 13:0186e9e35a24 181 return -1;
sam_grove 13:0186e9e35a24 182 }
sam_grove 13:0186e9e35a24 183
sarahmarshy 18:9fc7976c7b27 184 int32_t ESP8266Socket::open()
sam_grove 13:0186e9e35a24 185 {
sarahmarshy 18:9fc7976c7b27 186 char portstr[5];
sarahmarshy 18:9fc7976c7b27 187 char idstr[2];
sarahmarshy 18:9fc7976c7b27 188 sprintf(idstr,"%d",_id);
sarahmarshy 18:9fc7976c7b27 189 sprintf(portstr, "%d", _port);
sarahmarshy 18:9fc7976c7b27 190
sarahmarshy 18:9fc7976c7b27 191 string sock_type;
sarahmarshy 18:9fc7976c7b27 192 if(_type == SOCK_UDP)
sarahmarshy 18:9fc7976c7b27 193 sock_type = "UDP";
sarahmarshy 18:9fc7976c7b27 194 else if(_type == SOCK_TCP)
sarahmarshy 18:9fc7976c7b27 195 sock_type = "TCP";
sarahmarshy 18:9fc7976c7b27 196 string start_command = "AT+CIPSTART="+(string)idstr+",\""+sock_type+"\",\""+(string)_addr+"\","+(string)portstr;
sarahmarshy 19:783c46b13285 197 if (!(atParser->send(start_command.c_str()) && atParser->recv("OK"))){
sarahmarshy 18:9fc7976c7b27 198 return -1;//opening socket not succesful
sarahmarshy 18:9fc7976c7b27 199 }
sam_grove 13:0186e9e35a24 200 return 0;
sarahmarshy 18:9fc7976c7b27 201
sam_grove 13:0186e9e35a24 202 }
sam_grove 13:0186e9e35a24 203
sarahmarshy 18:9fc7976c7b27 204 int32_t ESP8266Socket::send(const void *data, uint32_t amount, uint32_t timeout_ms)
bridadan 16:b2f781416464 205 {
sarahmarshy 18:9fc7976c7b27 206 char idstr[2];
sarahmarshy 18:9fc7976c7b27 207 sprintf(idstr,"%d",_id);
sarahmarshy 18:9fc7976c7b27 208 char lenstr[5];
sarahmarshy 18:9fc7976c7b27 209 sprintf(lenstr,"%d",(int)amount);
sarahmarshy 18:9fc7976c7b27 210
sarahmarshy 18:9fc7976c7b27 211 atParser->setTimeout((int)timeout_ms);
sarahmarshy 18:9fc7976c7b27 212
sarahmarshy 18:9fc7976c7b27 213 string send_command = "AT+CIPSEND="+(string)idstr+","+(string)lenstr;
sarahmarshy 18:9fc7976c7b27 214 if(!atParser->send(send_command.c_str())){
sarahmarshy 18:9fc7976c7b27 215 return -1;
sarahmarshy 18:9fc7976c7b27 216 }
sarahmarshy 18:9fc7976c7b27 217 atParser->write((char*)data, (int)amount);
bridadan 16:b2f781416464 218 return 0;
bridadan 16:b2f781416464 219 }
bridadan 16:b2f781416464 220
sarahmarshy 18:9fc7976c7b27 221 uint32_t ESP8266Socket::recv(void *data, uint32_t amount, uint32_t timeout_ms)
sam_grove 13:0186e9e35a24 222 {
sarahmarshy 18:9fc7976c7b27 223 atParser->setTimeout((int)timeout_ms);
sarahmarshy 18:9fc7976c7b27 224 int length;
sarahmarshy 19:783c46b13285 225 int id;
sarahmarshy 19:783c46b13285 226 if (!(atParser->recv("+IPD,%d,%d:", &id, &length) &&
sarahmarshy 19:783c46b13285 227 atParser->read((char*)data, length) &&
sarahmarshy 19:783c46b13285 228 atParser->recv("OK"))){
sarahmarshy 19:783c46b13285 229 return false;
sarahmarshy 19:783c46b13285 230 }
sarahmarshy 18:9fc7976c7b27 231 return length;
sam_grove 13:0186e9e35a24 232 }
sam_grove 13:0186e9e35a24 233
sarahmarshy 18:9fc7976c7b27 234 int32_t ESP8266Socket::close() const
sam_grove 13:0186e9e35a24 235 {
sarahmarshy 18:9fc7976c7b27 236 char idstr[2];
sarahmarshy 18:9fc7976c7b27 237 sprintf(idstr,"%d",_id);
sarahmarshy 18:9fc7976c7b27 238 string close_command = "AT+CIPCLOSE="+(string)idstr;
sarahmarshy 18:9fc7976c7b27 239
sarahmarshy 19:783c46b13285 240 if (!(atParser->send(close_command.c_str()) && atParser->recv("OK"))){
sarahmarshy 18:9fc7976c7b27 241 return -1;//opening socket not succesful
sarahmarshy 18:9fc7976c7b27 242 }
sam_grove 13:0186e9e35a24 243 return 0;
sam_grove 13:0186e9e35a24 244 }
sarahmarshy 18:9fc7976c7b27 245 uint8_t ESP8266Socket::getID()
sam_grove 13:0186e9e35a24 246 {
sarahmarshy 18:9fc7976c7b27 247 return _id;
bridadan 16:b2f781416464 248 }