Christopher Haster / ESP8266Interface

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Dependencies:   ESP8266

Fork of ESP8266Interface by NetworkSocketAPI

ESP8266Interface.cpp@55:c0808849cb89, 2016-04-06 (annotated)

Committer:
geky
Date:
Wed Apr 06 13:49:41 2016 +0000
Revision:
55:c0808849cb89
Parent:
54:e78fad32cfff 
Matched changes to NSAPI

Who changed what in which revision?

UserRevisionLine numberNew contents of line
geky 49:750ed1b67483 1 /* ESP8266 implementation of NetworkInterfaceAPI
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 */
geky 55:c0808849cb89 16
sam_grove 24:37504440f296 17
sarahmarshy 18:9fc7976c7b27 18 #include "ESP8266Interface.h"
sam_grove 11:288c15b80a26 19
Christopher Haster 45:538e5ce2f0d3 20 // Various timeouts for different ESP8266 operations
Christopher Haster 45:538e5ce2f0d3 21 #define ESP8266_CONNECT_TIMEOUT 15000
Christopher Haster 45:538e5ce2f0d3 22 #define ESP8266_SEND_TIMEOUT 500
Christopher Haster 45:538e5ce2f0d3 23 #define ESP8266_RECV_TIMEOUT 0
Christopher Haster 47:60a4b49e8b83 24 #define ESP8266_MISC_TIMEOUT 500
Christopher Haster 45:538e5ce2f0d3 25
Christopher Haster 42:4bf09cadf328 26
Christopher Haster 40:83c6b4129468 27 // ESP8266Interface implementation
Christopher Haster 34:9c26a3dcdc1f 28 ESP8266Interface::ESP8266Interface(PinName tx, PinName rx, bool debug)
Christopher Haster 34:9c26a3dcdc1f 29 : _esp(tx, rx, debug)
sam_grove 24:37504440f296 30 {
Christopher Haster 34:9c26a3dcdc1f 31 memset(_ids, 0, sizeof(_ids));
sam_grove 11:288c15b80a26 32 }
sam_grove 11:288c15b80a26 33
geky 55:c0808849cb89 34 int ESP8266Interface::connect(
geky 55:c0808849cb89 35 const char *ssid,
geky 55:c0808849cb89 36 const char *pass,
geky 55:c0808849cb89 37 nsapi_security_t security)
sam_grove 11:288c15b80a26 38 {
Christopher Haster 45:538e5ce2f0d3 39 _esp.setTimeout(ESP8266_CONNECT_TIMEOUT);
Christopher Haster 45:538e5ce2f0d3 40
Christopher Haster 41:3f4d5f4862d2 41 if (!_esp.startup(3)) {
geky 55:c0808849cb89 42 return NSAPI_ERROR_DEVICE_ERROR;
Christopher Haster 41:3f4d5f4862d2 43 }
Christopher Haster 41:3f4d5f4862d2 44
Christopher Haster 41:3f4d5f4862d2 45 if (!_esp.dhcp(true, 1)) {
geky 55:c0808849cb89 46 return NSAPI_ERROR_DHCP_FAILURE;
Christopher Haster 41:3f4d5f4862d2 47 }
Christopher Haster 41:3f4d5f4862d2 48
geky 55:c0808849cb89 49 if (!_esp.connect(ssid, pass)) {
geky 55:c0808849cb89 50 return NSAPI_ERROR_NO_CONNECTION;
Christopher Haster 41:3f4d5f4862d2 51 }
Christopher Haster 34:9c26a3dcdc1f 52
Christopher Haster 46:6b1bd1268074 53 if (!_esp.getIPAddress()) {
geky 55:c0808849cb89 54 return NSAPI_ERROR_DHCP_FAILURE;
Christopher Haster 41:3f4d5f4862d2 55 }
Christopher Haster 34:9c26a3dcdc1f 56
sam_grove 24:37504440f296 57 return 0;
sam_grove 11:288c15b80a26 58 }
sam_grove 11:288c15b80a26 59
geky 55:c0808849cb89 60 int ESP8266Interface::disconnect()
sam_grove 11:288c15b80a26 61 {
Christopher Haster 45:538e5ce2f0d3 62 _esp.setTimeout(ESP8266_MISC_TIMEOUT);
Christopher Haster 45:538e5ce2f0d3 63
Christopher Haster 41:3f4d5f4862d2 64 if (!_esp.disconnect()) {
geky 55:c0808849cb89 65 return NSAPI_ERROR_DEVICE_ERROR;
Christopher Haster 41:3f4d5f4862d2 66 }
Christopher Haster 34:9c26a3dcdc1f 67
sarahmarshy 22:312453862371 68 return 0;
sam_grove 11:288c15b80a26 69 }
sam_grove 11:288c15b80a26 70
geky 55:c0808849cb89 71 const char *ESP8266Interface::get_ip_address()
sarahmarshy 18:9fc7976c7b27 72 {
Christopher Haster 46:6b1bd1268074 73 return _esp.getIPAddress();
sarahmarshy 18:9fc7976c7b27 74 }
sarahmarshy 18:9fc7976c7b27 75
geky 55:c0808849cb89 76 const char *ESP8266Interface::get_mac_address()
sam_grove 11:288c15b80a26 77 {
Christopher Haster 46:6b1bd1268074 78 return _esp.getMACAddress();
sam_grove 11:288c15b80a26 79 }
sam_grove 11:288c15b80a26 80
geky 55:c0808849cb89 81 struct esp8266_socket {
geky 55:c0808849cb89 82 int id;
geky 55:c0808849cb89 83 nsapi_protocol_t proto;
geky 55:c0808849cb89 84 bool connected;
geky 55:c0808849cb89 85 };
geky 55:c0808849cb89 86
geky 55:c0808849cb89 87 void *ESP8266Interface::socket_create(nsapi_protocol_t proto)
sam_grove 11:288c15b80a26 88 {
Christopher Haster 34:9c26a3dcdc1f 89 // Look for an unused socket
sarahmarshy 18:9fc7976c7b27 90 int id = -1;
geky 55:c0808849cb89 91
Christopher Haster 34:9c26a3dcdc1f 92 for (int i = 0; i < ESP8266_SOCKET_COUNT; i++) {
Christopher Haster 34:9c26a3dcdc1f 93 if (!_ids[i]) {
sam_grove 24:37504440f296 94 id = i;
Christopher Haster 34:9c26a3dcdc1f 95 _ids[i] = true;
sarahmarshy 18:9fc7976c7b27 96 break;
sarahmarshy 18:9fc7976c7b27 97 }
sarahmarshy 18:9fc7976c7b27 98 }
geky 55:c0808849cb89 99
sam_grove 24:37504440f296 100 if (id == -1) {
Christopher Haster 34:9c26a3dcdc1f 101 return 0;
sarahmarshy 22:312453862371 102 }
geky 55:c0808849cb89 103
geky 55:c0808849cb89 104 struct esp8266_socket *socket = new struct esp8266_socket;
geky 55:c0808849cb89 105 if (!socket) {
geky 55:c0808849cb89 106 return 0;
geky 55:c0808849cb89 107 }
geky 55:c0808849cb89 108
geky 55:c0808849cb89 109 socket->id = id;
geky 55:c0808849cb89 110 socket->proto = proto;
geky 55:c0808849cb89 111 socket->connected = false;
geky 55:c0808849cb89 112 return socket;
bridadan 16:b2f781416464 113 }
bridadan 16:b2f781416464 114
geky 55:c0808849cb89 115 void ESP8266Interface::socket_destroy(void *handle)
sarahmarshy 18:9fc7976c7b27 116 {
geky 55:c0808849cb89 117 struct esp8266_socket *socket = (struct esp8266_socket *)handle;
geky 55:c0808849cb89 118 _ids[socket->id] = false;
Christopher Haster 39:7e85bf8003fa 119 delete socket;
sam_grove 13:0186e9e35a24 120 }
sam_grove 13:0186e9e35a24 121
geky 55:c0808849cb89 122 int ESP8266Interface::socket_set_option(void *handle, int optname, const void *optval, unsigned optlen)
geky 55:c0808849cb89 123 {
geky 55:c0808849cb89 124 return NSAPI_ERROR_UNSUPPORTED;
geky 55:c0808849cb89 125 }
Christopher Haster 40:83c6b4129468 126
geky 55:c0808849cb89 127 int ESP8266Interface::socket_get_option(void *handle, int optname, void *optval, unsigned *optlen)
geky 55:c0808849cb89 128 {
geky 55:c0808849cb89 129 return NSAPI_ERROR_UNSUPPORTED;
geky 55:c0808849cb89 130 }
geky 55:c0808849cb89 131
geky 55:c0808849cb89 132 int ESP8266Interface::socket_bind(void *handle, int port)
geky 55:c0808849cb89 133 {
geky 55:c0808849cb89 134 return NSAPI_ERROR_UNSUPPORTED;
geky 55:c0808849cb89 135 }
geky 55:c0808849cb89 136
geky 55:c0808849cb89 137 int ESP8266Interface::socket_listen(void *handle, int backlog)
geky 55:c0808849cb89 138 {
geky 55:c0808849cb89 139 return NSAPI_ERROR_UNSUPPORTED;
geky 55:c0808849cb89 140 }
geky 55:c0808849cb89 141
geky 55:c0808849cb89 142 int ESP8266Interface::socket_connect(void *handle, const SocketAddress &addr)
Christopher Haster 40:83c6b4129468 143 {
geky 55:c0808849cb89 144 struct esp8266_socket *socket = (struct esp8266_socket *)handle;
geky 55:c0808849cb89 145 _esp.setTimeout(ESP8266_MISC_TIMEOUT);
geky 55:c0808849cb89 146
geky 55:c0808849cb89 147 const char *proto = (socket->proto == NSAPI_UDP) ? "UDP" : "TCP";
geky 55:c0808849cb89 148 if (!_esp.open(proto, socket->id, addr.get_ip_address(), addr.get_port())) {
geky 55:c0808849cb89 149 return NSAPI_ERROR_DEVICE_ERROR;
geky 55:c0808849cb89 150 }
geky 55:c0808849cb89 151
geky 55:c0808849cb89 152 socket->connected = true;
geky 55:c0808849cb89 153 return 0;
geky 55:c0808849cb89 154 }
geky 55:c0808849cb89 155
geky 55:c0808849cb89 156 bool ESP8266Interface::socket_is_connected(void *handle)
geky 55:c0808849cb89 157 {
geky 55:c0808849cb89 158 return true;
geky 55:c0808849cb89 159 }
geky 55:c0808849cb89 160
geky 55:c0808849cb89 161 int ESP8266Interface::socket_accept(void *handle, void **connection)
geky 55:c0808849cb89 162 {
geky 55:c0808849cb89 163 return NSAPI_ERROR_UNSUPPORTED;
geky 55:c0808849cb89 164 }
Christopher Haster 45:538e5ce2f0d3 165
geky 55:c0808849cb89 166 int ESP8266Interface::socket_send(void *handle, const void *data, unsigned size)
geky 55:c0808849cb89 167 {
geky 55:c0808849cb89 168 struct esp8266_socket *socket = (struct esp8266_socket *)handle;
geky 55:c0808849cb89 169 _esp.setTimeout(ESP8266_SEND_TIMEOUT);
geky 55:c0808849cb89 170
geky 55:c0808849cb89 171 if (!_esp.send(socket->id, data, size)) {
geky 55:c0808849cb89 172 return NSAPI_ERROR_DEVICE_ERROR;
geky 55:c0808849cb89 173 }
geky 55:c0808849cb89 174
geky 55:c0808849cb89 175 return size;
geky 55:c0808849cb89 176 }
geky 55:c0808849cb89 177
geky 55:c0808849cb89 178 int ESP8266Interface::socket_recv(void *handle, void *data, unsigned size)
geky 55:c0808849cb89 179 {
geky 55:c0808849cb89 180 struct esp8266_socket *socket = (struct esp8266_socket *)handle;
geky 55:c0808849cb89 181 _esp.setTimeout(ESP8266_RECV_TIMEOUT);
geky 55:c0808849cb89 182
geky 55:c0808849cb89 183 int32_t recv = _esp.recv(socket->id, data, size);
geky 55:c0808849cb89 184 if (recv < 0) {
geky 55:c0808849cb89 185 return NSAPI_ERROR_WOULD_BLOCK;
geky 55:c0808849cb89 186 }
geky 55:c0808849cb89 187
geky 55:c0808849cb89 188 return recv;
geky 55:c0808849cb89 189 }
Christopher Haster 40:83c6b4129468 190
geky 55:c0808849cb89 191 int ESP8266Interface::socket_sendto(void *handle, const SocketAddress &addr, const void *data, unsigned size)
geky 55:c0808849cb89 192 {
geky 55:c0808849cb89 193 struct esp8266_socket *socket = (struct esp8266_socket *)handle;
geky 55:c0808849cb89 194 if (!socket->connected) {
geky 55:c0808849cb89 195 int err = socket_connect(socket, addr);
geky 55:c0808849cb89 196 if (err < 0) {
geky 55:c0808849cb89 197 return err;
geky 55:c0808849cb89 198 }
Christopher Haster 40:83c6b4129468 199 }
geky 55:c0808849cb89 200
geky 55:c0808849cb89 201 return socket_send(socket, data, size);
geky 55:c0808849cb89 202 }
Christopher Haster 40:83c6b4129468 203
geky 55:c0808849cb89 204 int ESP8266Interface::socket_recvfrom(void *handle, SocketAddress *addr, void *data, unsigned size)
geky 55:c0808849cb89 205 {
geky 55:c0808849cb89 206 struct esp8266_socket *socket = (struct esp8266_socket *)handle;
geky 55:c0808849cb89 207 return socket_recv(socket, data, size);
geky 55:c0808849cb89 208 }
geky 55:c0808849cb89 209
geky 55:c0808849cb89 210 int ESP8266Interface::socket_close(void *handle, bool shutdown)
geky 55:c0808849cb89 211 {
geky 55:c0808849cb89 212 struct esp8266_socket *socket = (struct esp8266_socket *)handle;
geky 55:c0808849cb89 213 _esp.setTimeout(ESP8266_MISC_TIMEOUT);
geky 55:c0808849cb89 214
geky 55:c0808849cb89 215 if (!_esp.close(socket->id)) {
geky 55:c0808849cb89 216 return NSAPI_ERROR_DEVICE_ERROR;
geky 55:c0808849cb89 217 }
geky 55:c0808849cb89 218
Christopher Haster 40:83c6b4129468 219 return 0;
Christopher Haster 40:83c6b4129468 220 }
Christopher Haster 40:83c6b4129468 221
geky 55:c0808849cb89 222 void ESP8266Interface::socket_attach_accept(void *handle, void (*callback)(void *), void *id)
Christopher Haster 40:83c6b4129468 223 {
Christopher Haster 40:83c6b4129468 224 }
Christopher Haster 40:83c6b4129468 225
geky 55:c0808849cb89 226 void ESP8266Interface::socket_attach_send(void *handle, void (*callback)(void *), void *id)
Christopher Haster 40:83c6b4129468 227 {
Christopher Haster 40:83c6b4129468 228 }
Christopher Haster 40:83c6b4129468 229
geky 55:c0808849cb89 230 void ESP8266Interface::socket_attach_recv(void *handle, void (*callback)(void *), void *id)
Christopher Haster 40:83c6b4129468 231 {
Christopher Haster 40:83c6b4129468 232 }