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SPWFInterface.cpp@9:d2dfbf8e7f49, 2016-05-13 (annotated)

Committer:
mridup
Date:
Fri May 13 06:59:56 2016 +0000
Revision:
9:d2dfbf8e7f49
Parent:
8:0f302a13e21b
Child:
11:67a8c3499caf
reducing recv() delay to 1ms

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mridup 0:dc55f40eb04f 1 /* SpwfSAInterface implementation of NetworkInterfaceAPI
mridup 0:dc55f40eb04f 2 * Copyright (c) 2015 ARM Limited
mridup 0:dc55f40eb04f 3 *
mridup 0:dc55f40eb04f 4 * Licensed under the Apache License, Version 2.0 (the "License");
mridup 0:dc55f40eb04f 5 * you may not use this file except in compliance with the License.
mridup 0:dc55f40eb04f 6 * You may obtain a copy of the License at
mridup 0:dc55f40eb04f 7 *
mridup 0:dc55f40eb04f 8 * http://www.apache.org/licenses/LICENSE-2.0
mridup 0:dc55f40eb04f 9 *
mridup 0:dc55f40eb04f 10 * Unless required by applicable law or agreed to in writing, software
mridup 0:dc55f40eb04f 11 * distributed under the License is distributed on an "AS IS" BASIS,
mridup 0:dc55f40eb04f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mridup 0:dc55f40eb04f 13 * See the License for the specific language governing permissions and
mridup 0:dc55f40eb04f 14 * limitations under the License.
mridup 0:dc55f40eb04f 15 */
mridup 0:dc55f40eb04f 16
mridup 0:dc55f40eb04f 17 #include "SPWFInterface.h"
mridup 0:dc55f40eb04f 18
mridup 0:dc55f40eb04f 19 // Various timeouts for different SPWF operations
mridup 0:dc55f40eb04f 20 #define SPWF_CONNECT_TIMEOUT 20000
mridup 0:dc55f40eb04f 21 #define SPWF_SEND_TIMEOUT 500
mridup 7:0fdd186a7d90 22 #define SPWF_RECV_TIMEOUT 1000
mridup 0:dc55f40eb04f 23 #define SPWF_MISC_TIMEOUT 15000
mridup 5:c83ffd44f40a 24
mridup 5:c83ffd44f40a 25 // Handle structure for socket
mridup 5:c83ffd44f40a 26 struct spwf_socket {
mridup 5:c83ffd44f40a 27 int id;
mridup 6:e7a3fca2df10 28 int server_port;
mridup 5:c83ffd44f40a 29 nsapi_protocol_t proto;
mridup 5:c83ffd44f40a 30 bool connected;
mridup 5:c83ffd44f40a 31 };
mridup 0:dc55f40eb04f 32
mridup 0:dc55f40eb04f 33 // SpwfSAInterface implementation
mridup 0:dc55f40eb04f 34 SpwfSAInterface::SpwfSAInterface(PinName tx, PinName rx, PinName rst, PinName wkup, PinName rts, bool debug)
mridup 0:dc55f40eb04f 35 : _spwf(tx, rx, rst, wkup, rts)
mridup 0:dc55f40eb04f 36 {
mridup 0:dc55f40eb04f 37 memset(_ids, 0, sizeof(_ids));
mridup 3:fd9d20c4d3f0 38 isInitialized = false;
mridup 6:e7a3fca2df10 39 isListening = false;
mridup 0:dc55f40eb04f 40 }
mridup 0:dc55f40eb04f 41
mridup 0:dc55f40eb04f 42 SpwfSAInterface::~SpwfSAInterface()
mridup 0:dc55f40eb04f 43 {
mridup 0:dc55f40eb04f 44 }
mridup 0:dc55f40eb04f 45
mridup 5:c83ffd44f40a 46 int SpwfSAInterface::init(void)
mridup 0:dc55f40eb04f 47 {
mridup 0:dc55f40eb04f 48 _spwf.setTimeout(SPWF_MISC_TIMEOUT);
mridup 0:dc55f40eb04f 49 return (_spwf.init());
mridup 0:dc55f40eb04f 50 }
mridup 0:dc55f40eb04f 51
mridup 5:c83ffd44f40a 52 int SpwfSAInterface::connect(
mridup 0:dc55f40eb04f 53 const char *ap,
mridup 0:dc55f40eb04f 54 const char *pass_phrase,
mridup 5:c83ffd44f40a 55 nsapi_security_t security)
mridup 0:dc55f40eb04f 56 {
mridup 3:fd9d20c4d3f0 57 //initialize the device before connecting
mridup 3:fd9d20c4d3f0 58 if(!isInitialized)
mridup 3:fd9d20c4d3f0 59 {
mridup 3:fd9d20c4d3f0 60 if(init()==0)
mridup 3:fd9d20c4d3f0 61 isInitialized=true;
mridup 5:c83ffd44f40a 62 else return NSAPI_ERROR_DEVICE_ERROR;
mridup 3:fd9d20c4d3f0 63 }
mridup 3:fd9d20c4d3f0 64
mridup 0:dc55f40eb04f 65 _spwf.setTimeout(SPWF_CONNECT_TIMEOUT);
mridup 0:dc55f40eb04f 66
mridup 5:c83ffd44f40a 67 if(security == NSAPI_SECURITY_WPA2) return NSAPI_ERROR_DEVICE_ERROR;
mridup 0:dc55f40eb04f 68
mridup 0:dc55f40eb04f 69 WiFi_Priv_Mode mode = (WiFi_Priv_Mode)security;
mridup 0:dc55f40eb04f 70
mridup 0:dc55f40eb04f 71 return (_spwf.connect((char*)ap, (char*)pass_phrase, mode));//0 on success
mridup 0:dc55f40eb04f 72 }
mridup 0:dc55f40eb04f 73
mridup 5:c83ffd44f40a 74 int SpwfSAInterface::disconnect()
mridup 5:c83ffd44f40a 75 {
mridup 0:dc55f40eb04f 76 return (_spwf.disconnect());
mridup 0:dc55f40eb04f 77 }
mridup 0:dc55f40eb04f 78
mridup 5:c83ffd44f40a 79 const char *SpwfSAInterface::get_ip_address()
mridup 0:dc55f40eb04f 80 {
mridup 0:dc55f40eb04f 81 return _spwf.getIPAddress();
mridup 0:dc55f40eb04f 82 }
mridup 0:dc55f40eb04f 83
mridup 5:c83ffd44f40a 84 const char *SpwfSAInterface::get_mac_address()
mridup 0:dc55f40eb04f 85 {
mridup 0:dc55f40eb04f 86 return _spwf.getMACAddress();
mridup 0:dc55f40eb04f 87 }
mridup 0:dc55f40eb04f 88
mridup 5:c83ffd44f40a 89
mridup 5:c83ffd44f40a 90 int SpwfSAInterface::socket_open(void **handle, nsapi_protocol_t proto)
mridup 0:dc55f40eb04f 91 {
mridup 5:c83ffd44f40a 92 // Look for an unused socket
mridup 5:c83ffd44f40a 93 int id = -1;
mridup 5:c83ffd44f40a 94
mridup 5:c83ffd44f40a 95 struct spwf_socket *socket = new struct spwf_socket;
mridup 5:c83ffd44f40a 96 if (!socket) {
mridup 5:c83ffd44f40a 97 return NSAPI_ERROR_NO_SOCKET;
mridup 5:c83ffd44f40a 98 }
mridup 5:c83ffd44f40a 99
mridup 5:c83ffd44f40a 100 socket->id = id;
mridup 6:e7a3fca2df10 101 socket->server_port = id;
mridup 5:c83ffd44f40a 102 socket->proto = proto;
mridup 5:c83ffd44f40a 103 socket->connected = false;
mridup 5:c83ffd44f40a 104 *handle = socket;
mridup 5:c83ffd44f40a 105 return 0;
mridup 0:dc55f40eb04f 106 }
mridup 5:c83ffd44f40a 107
mridup 5:c83ffd44f40a 108 int SpwfSAInterface::socket_connect(void *handle, const SocketAddress &addr)
mridup 5:c83ffd44f40a 109 {
mridup 6:e7a3fca2df10 110 uint8_t sock_id = 99;
mridup 5:c83ffd44f40a 111 struct spwf_socket *socket = (struct spwf_socket *)handle;
mridup 5:c83ffd44f40a 112
mridup 5:c83ffd44f40a 113 const char *proto = (socket->proto == NSAPI_UDP) ? "u" : "t";//"s" for secure socket?
mridup 0:dc55f40eb04f 114
mridup 5:c83ffd44f40a 115 _spwf.socket_client_open((uint8_t*)addr.get_ip_address(), (uint32_t)addr.get_port(), (uint8_t *)proto, &sock_id);//sock ID is allocated NOW
mridup 0:dc55f40eb04f 116
mridup 0:dc55f40eb04f 117 //TODO: Maintain a socket table to map socket ID to host & port
mridup 0:dc55f40eb04f 118 //TODO: lookup on client table to see if already socket is allocated to same host/port
mridup 0:dc55f40eb04f 119 //multimap <char *, vector <uint16_t> > ::iterator i = c_table.find((char*)ip);
mridup 0:dc55f40eb04f 120
mridup 0:dc55f40eb04f 121 if(sock_id <= SPWFSA_SOCKET_COUNT)
mridup 0:dc55f40eb04f 122 {
mridup 5:c83ffd44f40a 123 //_ids[socket->id] = false;
mridup 5:c83ffd44f40a 124 socket->id = sock_id;//the socket ID of this Socket instance
mridup 5:c83ffd44f40a 125 _ids[socket->id] = true;
mridup 5:c83ffd44f40a 126 socket->connected = true;
mridup 0:dc55f40eb04f 127 }
mridup 0:dc55f40eb04f 128 else
mridup 5:c83ffd44f40a 129 return NSAPI_ERROR_NO_SOCKET;
mridup 0:dc55f40eb04f 130
mridup 0:dc55f40eb04f 131 return 0;//0 means SUCCESS
mridup 0:dc55f40eb04f 132 }
mridup 5:c83ffd44f40a 133
mridup 5:c83ffd44f40a 134 int SpwfSAInterface::socket_bind(void *handle, const SocketAddress &address)
mridup 5:c83ffd44f40a 135 {
mridup 7:0fdd186a7d90 136 struct spwf_socket *socket = (struct spwf_socket *)handle;
mridup 6:e7a3fca2df10 137 socket->server_port = address.get_port();
mridup 6:e7a3fca2df10 138 return 0;
mridup 5:c83ffd44f40a 139 }
mridup 5:c83ffd44f40a 140
mridup 5:c83ffd44f40a 141 int SpwfSAInterface::socket_listen(void *handle, int backlog)
mridup 0:dc55f40eb04f 142 {
mridup 6:e7a3fca2df10 143 struct spwf_socket *socket = (struct spwf_socket *)handle;
mridup 6:e7a3fca2df10 144 int err;
mridup 6:e7a3fca2df10 145
mridup 6:e7a3fca2df10 146 if(socket->server_port==-1 || isListening)
mridup 6:e7a3fca2df10 147 return NSAPI_ERROR_NO_SOCKET; //server socket not bound or already listening
mridup 6:e7a3fca2df10 148
mridup 6:e7a3fca2df10 149 const char *proto = (socket->proto == NSAPI_UDP) ? "u" : "t";
mridup 6:e7a3fca2df10 150
mridup 6:e7a3fca2df10 151 err = _spwf.socket_server_open((uint32_t)socket->server_port, (uint8_t *)proto);
mridup 6:e7a3fca2df10 152
mridup 6:e7a3fca2df10 153 if(err==0)
mridup 6:e7a3fca2df10 154 {
mridup 7:0fdd186a7d90 155 socket->id = SERVER_SOCKET_NO;//Special socket ID number for Server Socket
mridup 6:e7a3fca2df10 156 isListening = true;
mridup 6:e7a3fca2df10 157 }
mridup 6:e7a3fca2df10 158 else
mridup 6:e7a3fca2df10 159 return NSAPI_ERROR_DEVICE_ERROR;
mridup 6:e7a3fca2df10 160
mridup 6:e7a3fca2df10 161 return err;
mridup 5:c83ffd44f40a 162 }
mridup 5:c83ffd44f40a 163
mridup 5:c83ffd44f40a 164 int SpwfSAInterface::socket_accept(void **handle, void *server)
mridup 5:c83ffd44f40a 165 {
mridup 6:e7a3fca2df10 166 struct spwf_socket *server_socket = (struct spwf_socket *)server;
mridup 6:e7a3fca2df10 167
mridup 6:e7a3fca2df10 168 if(server_socket->server_port==-1 || !isListening)
mridup 6:e7a3fca2df10 169 return NSAPI_ERROR_NO_SOCKET; //server socket not bound or not listening
mridup 6:e7a3fca2df10 170
mridup 7:0fdd186a7d90 171 if(_spwf.get_wait_for_incoming_client())
mridup 7:0fdd186a7d90 172 {
mridup 7:0fdd186a7d90 173 server_socket->connected = true;
mridup 7:0fdd186a7d90 174 struct spwf_socket *socket = new struct spwf_socket;//create new network socket
mridup 7:0fdd186a7d90 175 if (!socket) {
mridup 7:0fdd186a7d90 176 return NSAPI_ERROR_NO_SOCKET;
mridup 7:0fdd186a7d90 177 }
mridup 7:0fdd186a7d90 178
mridup 7:0fdd186a7d90 179 memset(socket, 0, sizeof (struct spwf_socket));
mridup 7:0fdd186a7d90 180 /*
mridup 7:0fdd186a7d90 181 if(get_network_socket(&temp_socket)!=0)
mridup 6:e7a3fca2df10 182 {
mridup 7:0fdd186a7d90 183 return NSAPI_ERROR_NO_SOCKET;
mridup 7:0fdd186a7d90 184 }*/
mridup 7:0fdd186a7d90 185
mridup 7:0fdd186a7d90 186 socket->id = server_socket->id;
mridup 7:0fdd186a7d90 187 socket->server_port = server_socket->server_port;
mridup 7:0fdd186a7d90 188 socket->proto = server_socket->proto;
mridup 7:0fdd186a7d90 189 socket->connected = true;
mridup 7:0fdd186a7d90 190
mridup 7:0fdd186a7d90 191 *handle = socket;
mridup 7:0fdd186a7d90 192 socket = 0;
mridup 7:0fdd186a7d90 193 _spwf.set_wait_for_incoming_client(false);//reset
mridup 7:0fdd186a7d90 194 wait_ms(50);//CHECK:TODO:Why do we need this?
mridup 7:0fdd186a7d90 195 return 0;
mridup 7:0fdd186a7d90 196 }
mridup 7:0fdd186a7d90 197 return NSAPI_ERROR_WOULD_BLOCK;
mridup 5:c83ffd44f40a 198 }
mridup 5:c83ffd44f40a 199
mridup 6:e7a3fca2df10 200 /*
mridup 6:e7a3fca2df10 201 int SpwfSAInterface::get_network_socket(struct spwf_socket **handle)
mridup 6:e7a3fca2df10 202 {
mridup 6:e7a3fca2df10 203 struct spwf_socket *__socket = new struct spwf_socket;//create new network socket
mridup 6:e7a3fca2df10 204 __socket = new struct spwf_socket;//create new network socket
mridup 6:e7a3fca2df10 205 if (!__socket) {
mridup 6:e7a3fca2df10 206 return NSAPI_ERROR_NO_SOCKET;
mridup 6:e7a3fca2df10 207 }
mridup 6:e7a3fca2df10 208
mridup 6:e7a3fca2df10 209 memset(__socket, 0, sizeof (struct spwf_socket));
mridup 6:e7a3fca2df10 210 *handle = __socket;
mridup 6:e7a3fca2df10 211 return 0;
mridup 6:e7a3fca2df10 212 }
mridup 6:e7a3fca2df10 213 */
mridup 6:e7a3fca2df10 214
mridup 5:c83ffd44f40a 215 int SpwfSAInterface::socket_close(void *handle)
mridup 5:c83ffd44f40a 216 {
mridup 5:c83ffd44f40a 217 struct spwf_socket *socket = (struct spwf_socket *)handle;
mridup 5:c83ffd44f40a 218 int err = 0;
mridup 7:0fdd186a7d90 219 _spwf.setTimeout(SPWF_MISC_TIMEOUT);
mridup 0:dc55f40eb04f 220
mridup 5:c83ffd44f40a 221 if(socket->id!=-1)
mridup 5:c83ffd44f40a 222 {
mridup 6:e7a3fca2df10 223 if(socket->id==SERVER_SOCKET_NO)
mridup 6:e7a3fca2df10 224 {
mridup 6:e7a3fca2df10 225 if (_spwf.socket_server_close()==-1) {
mridup 6:e7a3fca2df10 226 err = NSAPI_ERROR_DEVICE_ERROR;
mridup 6:e7a3fca2df10 227 }
mridup 6:e7a3fca2df10 228 isListening = false;
mridup 5:c83ffd44f40a 229 }
mridup 6:e7a3fca2df10 230 else
mridup 6:e7a3fca2df10 231 {
mridup 6:e7a3fca2df10 232 if (_spwf.socket_client_close(socket->id)==-1) {
mridup 6:e7a3fca2df10 233 err = NSAPI_ERROR_DEVICE_ERROR;
mridup 6:e7a3fca2df10 234 }
mridup 6:e7a3fca2df10 235 _ids[socket->id] = false;
mridup 6:e7a3fca2df10 236 }
mridup 5:c83ffd44f40a 237 }
mridup 5:c83ffd44f40a 238
mridup 5:c83ffd44f40a 239 delete socket;
mridup 0:dc55f40eb04f 240 return err;
mridup 0:dc55f40eb04f 241 }
mridup 5:c83ffd44f40a 242
mridup 5:c83ffd44f40a 243 int SpwfSAInterface::socket_send(void *handle, const void *data, unsigned size)
mridup 5:c83ffd44f40a 244 {
mridup 5:c83ffd44f40a 245 struct spwf_socket *socket = (struct spwf_socket *)handle;
mridup 5:c83ffd44f40a 246 int err;
mridup 0:dc55f40eb04f 247
mridup 6:e7a3fca2df10 248 if(socket->id==SERVER_SOCKET_NO)
mridup 6:e7a3fca2df10 249 {
mridup 7:0fdd186a7d90 250 if(socket->server_port==-1 || !isListening)
mridup 7:0fdd186a7d90 251 return NSAPI_ERROR_NO_SOCKET; //server socket not bound or not listening
mridup 7:0fdd186a7d90 252
mridup 6:e7a3fca2df10 253 err = _spwf.socket_server_write((uint16_t)size, (char*)data);
mridup 6:e7a3fca2df10 254 }
mridup 6:e7a3fca2df10 255 else
mridup 6:e7a3fca2df10 256 {
mridup 6:e7a3fca2df10 257 err = _spwf.socket_client_write((uint8_t)socket->id, (uint16_t)size, (char*)data);
mridup 6:e7a3fca2df10 258 }
mridup 0:dc55f40eb04f 259
mridup 0:dc55f40eb04f 260 return err;
mridup 0:dc55f40eb04f 261 }
mridup 0:dc55f40eb04f 262
mridup 0:dc55f40eb04f 263 //return no of bytes read
mridup 5:c83ffd44f40a 264 int SpwfSAInterface::socket_recv(void *handle, void *data, unsigned size)
mridup 0:dc55f40eb04f 265 {
mridup 5:c83ffd44f40a 266 struct spwf_socket *socket = (struct spwf_socket *)handle;
mridup 0:dc55f40eb04f 267 int32_t recv;
mridup 0:dc55f40eb04f 268
mridup 5:c83ffd44f40a 269 _spwf.setTimeout(SPWF_RECV_TIMEOUT);
mridup 0:dc55f40eb04f 270
mridup 6:e7a3fca2df10 271 //CHECK:Receive for both Client and Server Sockets same?
mridup 5:c83ffd44f40a 272 recv = _spwf.socket_client_recv((uint8_t)socket->id, (uint16_t)size, (char*)data);
mridup 5:c83ffd44f40a 273 if (recv < 0) {
mridup 5:c83ffd44f40a 274 return NSAPI_ERROR_WOULD_BLOCK;
mridup 5:c83ffd44f40a 275 }
mridup 0:dc55f40eb04f 276 return recv;
mridup 0:dc55f40eb04f 277
mridup 0:dc55f40eb04f 278 }
mridup 0:dc55f40eb04f 279
mridup 5:c83ffd44f40a 280 int SpwfSAInterface::socket_sendto(void *handle, const SocketAddress &addr, const void *data, unsigned size)
mridup 5:c83ffd44f40a 281 {
mridup 5:c83ffd44f40a 282 struct spwf_socket *socket = (struct spwf_socket *)handle;
mridup 5:c83ffd44f40a 283 if (!socket->connected) {
mridup 5:c83ffd44f40a 284 int err = socket_connect(socket, addr);
mridup 5:c83ffd44f40a 285 if (err < 0) {
mridup 5:c83ffd44f40a 286 return err;
mridup 5:c83ffd44f40a 287 }
mridup 5:c83ffd44f40a 288 }
mridup 5:c83ffd44f40a 289
mridup 5:c83ffd44f40a 290 return socket_send(socket, data, size);
mridup 5:c83ffd44f40a 291 }
mridup 5:c83ffd44f40a 292
mridup 5:c83ffd44f40a 293 int SpwfSAInterface::socket_recvfrom(void *handle, SocketAddress *addr, void *data, unsigned size)
mridup 5:c83ffd44f40a 294 {
mridup 5:c83ffd44f40a 295 struct spwf_socket *socket = (struct spwf_socket *)handle;
mridup 5:c83ffd44f40a 296 return socket_recv(socket, data, size);
mridup 5:c83ffd44f40a 297 }
mridup 5:c83ffd44f40a 298
mridup 5:c83ffd44f40a 299 void SpwfSAInterface::socket_attach(void *handle, void (*callback)(void *), void *data)
mridup 5:c83ffd44f40a 300 {
mridup 5:c83ffd44f40a 301 //No implementation yet
mridup 5:c83ffd44f40a 302 }
mridup 5:c83ffd44f40a 303
mridup 0:dc55f40eb04f 304 void SpwfSAInterface::debug(const char * string)
mridup 0:dc55f40eb04f 305 {
mridup 0:dc55f40eb04f 306 _spwf.debug_print(string);
mridup 0:dc55f40eb04f 307 }