W5500-Ethernet-Interface Makers / W5500Interface

This is the Interface library for WIZnet W5500 chip which forked of EthernetInterfaceW5500, WIZnetInterface and WIZ550ioInterface. This library has simple name as "W5500Interface". and can be used for Wiz550io users also.

Dependents:   EvrythngApi Websocket_Ethernet_HelloWorld_W5500 Websocket_Ethernet_W5500 CurrentWeatherData_W5500 ... more

Information

It has EthernetInterface class like official EthernetInterface , but uses Wiznet chip driver codes.

So this library can use only the WIZnet W5500 or WIZ550io users.

This library has referred to many project such as WIZ550ioInterface, WiflyInterface and WIZnet Library.

Thanks all.

Socket/UDPSocket.cpp@11:5499fa2d8898, 2015-04-28 (annotated)

Committer:
embeddist
Date:
Tue Apr 28 13:52:23 2015 +0000
Revision:
11:5499fa2d8898
Parent:
8:7609a4bd55fd 
Remove the setting of tx/rx buffer in SWReset

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Bongjun 0:e11e8793c3ce 1 /* Copyright (C) 2012 mbed.org, MIT License
Bongjun 0:e11e8793c3ce 2 *
Bongjun 0:e11e8793c3ce 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Bongjun 0:e11e8793c3ce 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
Bongjun 0:e11e8793c3ce 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
Bongjun 0:e11e8793c3ce 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
Bongjun 0:e11e8793c3ce 7 * furnished to do so, subject to the following conditions:
Bongjun 0:e11e8793c3ce 8 *
Bongjun 0:e11e8793c3ce 9 * The above copyright notice and this permission notice shall be included in all copies or
Bongjun 0:e11e8793c3ce 10 * substantial portions of the Software.
Bongjun 0:e11e8793c3ce 11 *
Bongjun 0:e11e8793c3ce 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Bongjun 0:e11e8793c3ce 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Bongjun 0:e11e8793c3ce 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Bongjun 0:e11e8793c3ce 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Bongjun 0:e11e8793c3ce 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Bongjun 0:e11e8793c3ce 17 */
Bongjun 0:e11e8793c3ce 18
Bongjun 0:e11e8793c3ce 19 #include "UDPSocket.h"
Bongjun 0:e11e8793c3ce 20
Bongjun 0:e11e8793c3ce 21 static int udp_local_port;
Bongjun 0:e11e8793c3ce 22
Bongjun 0:e11e8793c3ce 23 UDPSocket::UDPSocket()
Bongjun 0:e11e8793c3ce 24 {
Bongjun 0:e11e8793c3ce 25 }
Bongjun 0:e11e8793c3ce 26 // After init function, bind() should be called.
Bongjun 0:e11e8793c3ce 27 int UDPSocket::init(void)
Bongjun 0:e11e8793c3ce 28 {
Bongjun 0:e11e8793c3ce 29 if (_sock_fd < 0) {
Bongjun 0:e11e8793c3ce 30 _sock_fd = eth->new_socket();
Bongjun 0:e11e8793c3ce 31 }
kaizen 5:8aefaef88f79 32 if (eth->setProtocol(_sock_fd, WIZnet_Chip::UDP) == false) return -1;
Bongjun 0:e11e8793c3ce 33 return 0;
Bongjun 0:e11e8793c3ce 34 }
Bongjun 0:e11e8793c3ce 35
Bongjun 0:e11e8793c3ce 36 // Server initialization
Bongjun 0:e11e8793c3ce 37 int UDPSocket::bind(int port)
Bongjun 0:e11e8793c3ce 38 {
Bongjun 0:e11e8793c3ce 39 if (_sock_fd < 0) {
Bongjun 0:e11e8793c3ce 40 _sock_fd = eth->new_socket();
Bongjun 0:e11e8793c3ce 41 if (_sock_fd < 0) {
Bongjun 0:e11e8793c3ce 42 return -1;
Bongjun 0:e11e8793c3ce 43 }
Bongjun 0:e11e8793c3ce 44 }
Bongjun 0:e11e8793c3ce 45 // set local port
Bongjun 0:e11e8793c3ce 46 if (port != 0) {
Bongjun 0:e11e8793c3ce 47 eth->sreg<uint16_t>(_sock_fd, Sn_PORT, port);
Bongjun 0:e11e8793c3ce 48 } else {
Bongjun 0:e11e8793c3ce 49 udp_local_port++;
Bongjun 0:e11e8793c3ce 50 eth->sreg<uint16_t>(_sock_fd, Sn_PORT, udp_local_port);
Bongjun 0:e11e8793c3ce 51 }
Bongjun 0:e11e8793c3ce 52 // set udp protocol
kaizen 5:8aefaef88f79 53 eth->setProtocol(_sock_fd, WIZnet_Chip::UDP);
kaizen 5:8aefaef88f79 54 eth->scmd(_sock_fd, WIZnet_Chip::OPEN);
Bongjun 0:e11e8793c3ce 55 return 0;
Bongjun 0:e11e8793c3ce 56 }
Bongjun 0:e11e8793c3ce 57
Bongjun 0:e11e8793c3ce 58 // -1 if unsuccessful, else number of bytes written
Bongjun 0:e11e8793c3ce 59 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
Bongjun 0:e11e8793c3ce 60 {
Bongjun 0:e11e8793c3ce 61 int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout, length-1);
Bongjun 0:e11e8793c3ce 62 if (size < 0) {
Bongjun 0:e11e8793c3ce 63 return -1;
Bongjun 0:e11e8793c3ce 64 }
Bongjun 0:e11e8793c3ce 65 confEndpoint(remote);
Bongjun 0:e11e8793c3ce 66 int ret = eth->send(_sock_fd, packet, length);
Bongjun 0:e11e8793c3ce 67 return ret;
Bongjun 0:e11e8793c3ce 68 }
Bongjun 0:e11e8793c3ce 69
Bongjun 0:e11e8793c3ce 70 // -1 if unsuccessful, else number of bytes received
Bongjun 0:e11e8793c3ce 71 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
Bongjun 0:e11e8793c3ce 72 {
Bongjun 0:e11e8793c3ce 73 uint8_t info[8];
Bongjun 0:e11e8793c3ce 74 int size = eth->wait_readable(_sock_fd, _blocking ? -1 : _timeout, sizeof(info));
Bongjun 0:e11e8793c3ce 75 if (size < 0) {
Bongjun 0:e11e8793c3ce 76 return -1;
Bongjun 0:e11e8793c3ce 77 }
Bongjun 0:e11e8793c3ce 78 eth->recv(_sock_fd, (char*)info, sizeof(info));
Bongjun 0:e11e8793c3ce 79 readEndpoint(remote, info);
Bongjun 0:e11e8793c3ce 80 int udp_size = info[6]<<8|info[7];
Bongjun 0:e11e8793c3ce 81 //TEST_ASSERT(udp_size <= (size-sizeof(info)));
Bongjun 0:e11e8793c3ce 82 if (udp_size > (size-sizeof(info))) {
Bongjun 0:e11e8793c3ce 83 return -1;
Bongjun 0:e11e8793c3ce 84 }
Bongjun 8:7609a4bd55fd 85 /* Perform Length check here to prevent buffer overrun */
Bongjun 8:7609a4bd55fd 86 /* fixed by Sean Newton (https://developer.mbed.org/users/SeanNewton/) */
Bongjun 8:7609a4bd55fd 87 if (udp_size > length) {
Bongjun 8:7609a4bd55fd 88 //printf("udp_size: %d\n",udp_size);
Bongjun 8:7609a4bd55fd 89 return -1;
Bongjun 8:7609a4bd55fd 90 }
Bongjun 0:e11e8793c3ce 91 return eth->recv(_sock_fd, buffer, udp_size);
Bongjun 0:e11e8793c3ce 92 }
Bongjun 0:e11e8793c3ce 93
Bongjun 0:e11e8793c3ce 94 void UDPSocket::confEndpoint(Endpoint & ep)
Bongjun 0:e11e8793c3ce 95 {
Bongjun 0:e11e8793c3ce 96 char * host = ep.get_address();
Bongjun 0:e11e8793c3ce 97 // set remote host
Bongjun 0:e11e8793c3ce 98 eth->sreg_ip(_sock_fd, Sn_DIPR, host);
Bongjun 0:e11e8793c3ce 99 // set remote port
Bongjun 0:e11e8793c3ce 100 eth->sreg<uint16_t>(_sock_fd, Sn_DPORT, ep.get_port());
Bongjun 0:e11e8793c3ce 101 }
Bongjun 0:e11e8793c3ce 102
Bongjun 0:e11e8793c3ce 103 void UDPSocket::readEndpoint(Endpoint & ep, uint8_t info[])
Bongjun 0:e11e8793c3ce 104 {
Bongjun 0:e11e8793c3ce 105 char addr[17];
Bongjun 0:e11e8793c3ce 106 snprintf(addr, sizeof(addr), "%d.%d.%d.%d", info[0], info[1], info[2], info[3]);
Bongjun 0:e11e8793c3ce 107 uint16_t port = info[4]<<8|info[5];
Bongjun 0:e11e8793c3ce 108 ep.set_address(addr, port);
Bongjun 0:e11e8793c3ce 109 }