Takehisa Oneta / ESP8266Interface

modified by ohneta

Dependencies:   ESP8266

Dependents:   HelloESP8266Interface_mine

Fork of ESP8266Interface by NetworkSocketAPI

ESP8266Interface.cpp@20:5d0762aa4680, 2015-07-21 (annotated)

Committer:
sarahmarshy
Date:
Tue Jul 21 20:16:36 2015 +0000
Revision:
20:5d0762aa4680
Parent:
19:783c46b13285
Child:
22:312453862371
Fixed getIPAddress

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 20:5d0762aa4680 79 if (!(atParser.send("AT+CIPSTA?") && atParser.recv("+CIPSTA:\"%[^\"]\"", ip)))
sarahmarshy 18:9fc7976c7b27 80 return NULL;
sarahmarshy 18:9fc7976c7b27 81 return ip;
sarahmarshy 18:9fc7976c7b27 82 }
sarahmarshy 18:9fc7976c7b27 83
sarahmarshy 18:9fc7976c7b27 84 char *ESP8266Interface::getGateway(void) const
sam_grove 11:288c15b80a26 85 {
sam_grove 11:288c15b80a26 86 return 0;
sam_grove 11:288c15b80a26 87 }
sam_grove 11:288c15b80a26 88
sarahmarshy 18:9fc7976c7b27 89 char *ESP8266Interface::getNetworkMask(void) const
sam_grove 11:288c15b80a26 90 {
sam_grove 11:288c15b80a26 91 return 0;
sam_grove 11:288c15b80a26 92 }
sam_grove 11:288c15b80a26 93
sarahmarshy 18:9fc7976c7b27 94 char *ESP8266Interface::getMACAddress(void) const
sam_grove 11:288c15b80a26 95 {
sam_grove 11:288c15b80a26 96 return 0;
sam_grove 11:288c15b80a26 97 }
sam_grove 11:288c15b80a26 98
sarahmarshy 18:9fc7976c7b27 99 int32_t ESP8266Interface::isConnected(void)
sam_grove 11:288c15b80a26 100 {
sarahmarshy 18:9fc7976c7b27 101 return (getIPAddress()==NULL) ? -1 : 0;
sam_grove 11:288c15b80a26 102 }
sam_grove 11:288c15b80a26 103
sarahmarshy 18:9fc7976c7b27 104 SocketInterface *ESP8266Interface::allocateSocket(socket_protocol_t socketProtocol)
sarahmarshy 18:9fc7976c7b27 105 {
sarahmarshy 18:9fc7976c7b27 106 int id = -1;
sarahmarshy 18:9fc7976c7b27 107 uuidCounter += 1;
sarahmarshy 18:9fc7976c7b27 108 //Look through the array of available sockets for an unused ID
sarahmarshy 18:9fc7976c7b27 109 for(int i=0; i<sizeof(availableID); i++){
sarahmarshy 18:9fc7976c7b27 110 if (availableID[i] == -1){
sarahmarshy 18:9fc7976c7b27 111 id = i;
sarahmarshy 18:9fc7976c7b27 112 availableID[i] = uuidCounter;
sarahmarshy 18:9fc7976c7b27 113 break;
sarahmarshy 18:9fc7976c7b27 114 }
sarahmarshy 18:9fc7976c7b27 115 }
sarahmarshy 18:9fc7976c7b27 116 if (id == -1){
sarahmarshy 18:9fc7976c7b27 117 return NULL;//tried to allocate more than the maximum 5 sockets
sarahmarshy 18:9fc7976c7b27 118 }
sarahmarshy 18:9fc7976c7b27 119 ESP8266Socket *socket = new ESP8266Socket(uuidCounter, &atParser, socketProtocol, (uint8_t)id);
sarahmarshy 18:9fc7976c7b27 120 return socket;
sam_grove 11:288c15b80a26 121 }
sam_grove 13:0186e9e35a24 122
sarahmarshy 18:9fc7976c7b27 123 int ESP8266Interface::deallocateSocket(SocketInterface *socket)
bridadan 16:b2f781416464 124 {
sarahmarshy 18:9fc7976c7b27 125 int id = (int)static_cast<ESP8266Socket*>(socket)->getID();
sarahmarshy 18:9fc7976c7b27 126 availableID[id] = -1;
sarahmarshy 18:9fc7976c7b27 127 return id;
bridadan 16:b2f781416464 128 }
bridadan 16:b2f781416464 129
sarahmarshy 18:9fc7976c7b27 130 ESP8266Socket::ESP8266Socket(uint32_t handle, ATParser *atParser, socket_protocol_t type, uint8_t id)
sarahmarshy 18:9fc7976c7b27 131 : _handle(handle), atParser(atParser), _id(id)
sarahmarshy 18:9fc7976c7b27 132 {
sarahmarshy 18:9fc7976c7b27 133 SocketInterface::_type = type;
sarahmarshy 18:9fc7976c7b27 134 }
sarahmarshy 18:9fc7976c7b27 135
sarahmarshy 18:9fc7976c7b27 136 const char *ESP8266Socket::getHostByName(const char *name) const
sam_grove 13:0186e9e35a24 137 {
sam_grove 13:0186e9e35a24 138 return 0;
sam_grove 13:0186e9e35a24 139 }
sam_grove 13:0186e9e35a24 140
sarahmarshy 18:9fc7976c7b27 141 void ESP8266Socket::setAddress(const char* addr)
bridadan 16:b2f781416464 142 {
sarahmarshy 18:9fc7976c7b27 143 _addr = (char*)addr;
sarahmarshy 18:9fc7976c7b27 144 }
sarahmarshy 18:9fc7976c7b27 145
sarahmarshy 18:9fc7976c7b27 146 void ESP8266Socket::setPort(uint16_t port)
sarahmarshy 18:9fc7976c7b27 147 {
sarahmarshy 18:9fc7976c7b27 148 _port = port;
bridadan 16:b2f781416464 149 }
bridadan 16:b2f781416464 150
sarahmarshy 18:9fc7976c7b27 151 void ESP8266Socket::setAddressPort(const char* addr, uint16_t port)
bridadan 16:b2f781416464 152 {
sarahmarshy 18:9fc7976c7b27 153 _addr = (char*)addr;
sarahmarshy 18:9fc7976c7b27 154 _port = port;
bridadan 16:b2f781416464 155 }
bridadan 16:b2f781416464 156
sarahmarshy 18:9fc7976c7b27 157 const char *ESP8266Socket::getAddress(void) const
sarahmarshy 18:9fc7976c7b27 158 {
sarahmarshy 18:9fc7976c7b27 159 return (const char*)_addr;
sarahmarshy 18:9fc7976c7b27 160 }
sarahmarshy 18:9fc7976c7b27 161
sarahmarshy 18:9fc7976c7b27 162 uint16_t ESP8266Socket::getPort(void) const
sarahmarshy 18:9fc7976c7b27 163 {
sarahmarshy 18:9fc7976c7b27 164 return _port;
sarahmarshy 18:9fc7976c7b27 165 }
sarahmarshy 18:9fc7976c7b27 166
sarahmarshy 18:9fc7976c7b27 167
sarahmarshy 18:9fc7976c7b27 168 int32_t ESP8266Socket::bind(uint16_t port) const
sam_grove 13:0186e9e35a24 169 {
sam_grove 13:0186e9e35a24 170 return -1;
sam_grove 13:0186e9e35a24 171 }
sam_grove 13:0186e9e35a24 172
sarahmarshy 18:9fc7976c7b27 173 int32_t ESP8266Socket::listen(void) const
sam_grove 13:0186e9e35a24 174 {
sam_grove 13:0186e9e35a24 175 return -1;
sam_grove 13:0186e9e35a24 176 }
sam_grove 13:0186e9e35a24 177
sarahmarshy 18:9fc7976c7b27 178 int32_t ESP8266Socket::accept() const
sam_grove 13:0186e9e35a24 179 {
sam_grove 13:0186e9e35a24 180 return -1;
sam_grove 13:0186e9e35a24 181 }
sam_grove 13:0186e9e35a24 182
sarahmarshy 18:9fc7976c7b27 183 int32_t ESP8266Socket::open()
sam_grove 13:0186e9e35a24 184 {
sarahmarshy 18:9fc7976c7b27 185 char portstr[5];
sarahmarshy 18:9fc7976c7b27 186 char idstr[2];
sarahmarshy 18:9fc7976c7b27 187 sprintf(idstr,"%d",_id);
sarahmarshy 18:9fc7976c7b27 188 sprintf(portstr, "%d", _port);
sarahmarshy 18:9fc7976c7b27 189
sarahmarshy 18:9fc7976c7b27 190 string sock_type;
sarahmarshy 18:9fc7976c7b27 191 if(_type == SOCK_UDP)
sarahmarshy 18:9fc7976c7b27 192 sock_type = "UDP";
sarahmarshy 18:9fc7976c7b27 193 else if(_type == SOCK_TCP)
sarahmarshy 18:9fc7976c7b27 194 sock_type = "TCP";
sarahmarshy 18:9fc7976c7b27 195 string start_command = "AT+CIPSTART="+(string)idstr+",\""+sock_type+"\",\""+(string)_addr+"\","+(string)portstr;
sarahmarshy 19:783c46b13285 196 if (!(atParser->send(start_command.c_str()) && atParser->recv("OK"))){
sarahmarshy 18:9fc7976c7b27 197 return -1;//opening socket not succesful
sarahmarshy 18:9fc7976c7b27 198 }
sam_grove 13:0186e9e35a24 199 return 0;
sarahmarshy 18:9fc7976c7b27 200
sam_grove 13:0186e9e35a24 201 }
sam_grove 13:0186e9e35a24 202
sarahmarshy 18:9fc7976c7b27 203 int32_t ESP8266Socket::send(const void *data, uint32_t amount, uint32_t timeout_ms)
bridadan 16:b2f781416464 204 {
sarahmarshy 18:9fc7976c7b27 205 char idstr[2];
sarahmarshy 18:9fc7976c7b27 206 sprintf(idstr,"%d",_id);
sarahmarshy 18:9fc7976c7b27 207 char lenstr[5];
sarahmarshy 18:9fc7976c7b27 208 sprintf(lenstr,"%d",(int)amount);
sarahmarshy 18:9fc7976c7b27 209
sarahmarshy 18:9fc7976c7b27 210 atParser->setTimeout((int)timeout_ms);
sarahmarshy 18:9fc7976c7b27 211
sarahmarshy 18:9fc7976c7b27 212 string send_command = "AT+CIPSEND="+(string)idstr+","+(string)lenstr;
sarahmarshy 18:9fc7976c7b27 213 if(!atParser->send(send_command.c_str())){
sarahmarshy 18:9fc7976c7b27 214 return -1;
sarahmarshy 18:9fc7976c7b27 215 }
sarahmarshy 18:9fc7976c7b27 216 atParser->write((char*)data, (int)amount);
bridadan 16:b2f781416464 217 return 0;
bridadan 16:b2f781416464 218 }
bridadan 16:b2f781416464 219
sarahmarshy 18:9fc7976c7b27 220 uint32_t ESP8266Socket::recv(void *data, uint32_t amount, uint32_t timeout_ms)
sam_grove 13:0186e9e35a24 221 {
sarahmarshy 18:9fc7976c7b27 222 atParser->setTimeout((int)timeout_ms);
sarahmarshy 18:9fc7976c7b27 223 int length;
sarahmarshy 19:783c46b13285 224 int id;
sarahmarshy 19:783c46b13285 225 if (!(atParser->recv("+IPD,%d,%d:", &id, &length) &&
sarahmarshy 19:783c46b13285 226 atParser->read((char*)data, length) &&
sarahmarshy 19:783c46b13285 227 atParser->recv("OK"))){
sarahmarshy 19:783c46b13285 228 return false;
sarahmarshy 19:783c46b13285 229 }
sarahmarshy 18:9fc7976c7b27 230 return length;
sam_grove 13:0186e9e35a24 231 }
sam_grove 13:0186e9e35a24 232
sarahmarshy 18:9fc7976c7b27 233 int32_t ESP8266Socket::close() const
sam_grove 13:0186e9e35a24 234 {
sarahmarshy 18:9fc7976c7b27 235 char idstr[2];
sarahmarshy 18:9fc7976c7b27 236 sprintf(idstr,"%d",_id);
sarahmarshy 18:9fc7976c7b27 237 string close_command = "AT+CIPCLOSE="+(string)idstr;
sarahmarshy 18:9fc7976c7b27 238
sarahmarshy 19:783c46b13285 239 if (!(atParser->send(close_command.c_str()) && atParser->recv("OK"))){
sarahmarshy 18:9fc7976c7b27 240 return -1;//opening socket not succesful
sarahmarshy 18:9fc7976c7b27 241 }
sam_grove 13:0186e9e35a24 242 return 0;
sam_grove 13:0186e9e35a24 243 }
sarahmarshy 18:9fc7976c7b27 244 uint8_t ESP8266Socket::getID()
sam_grove 13:0186e9e35a24 245 {
sarahmarshy 18:9fc7976c7b27 246 return _id;
bridadan 16:b2f781416464 247 }