WIZnet / WIZnet_Library

This is WIZnet Ethernet Interface using Hardware TCP/IP chip, W5500, W5200 and W5100. One of them can be selected by enabling it in wiznet.h.

Dependents:   Embedded_web EmailButton EmailButton HTTPClient_Weather ... more

other drivers

for only W5500 / WIZ550io user, you could use

Import libraryW5500Interface

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.

Last commit 28 Apr 2015 by W5500-Ethernet-Interface Makers

WIZnetInterface/DHCPClient/DHCPClient.h

Committer:
Bongjun
Date:
2015-05-31
Revision:
8:cb8808b47e69
Parent:
0:b72d22e10709

File content as of revision 8:cb8808b47e69:

// DHCPClient.h 2013/4/10
#ifndef DHCPCLIENT_H
#define DHCPCLIENT_H
#include "wiznet.h"
#include "UDPSocket.h"

#define DHCP_OFFSET_OP 0
#define DHCP_OFFSET_XID 4
#define DHCP_OFFSET_YIADDR 16
#define DHCP_OFFSET_SIADDR 20
#define DHCP_OFFSET_OPTIONS 240
#define DHCP_MAX_PACKET_SIZE 600

// DHCP Message Type
#define DHCPDISCOVER 1
#define DHCPOFFER    2
#define DHCPREQUEST  3
#define DHCPDECLINE  4
#define DHCPACK      5
#define DHCPNAK      6
#define DHCPRELEASE  7
#define DHCPINFORM   8

class DHCPClient {
public:
    DHCPClient();
    int setup(int timeout_ms = 15*1000);
    uint8_t chaddr[6]; // MAC
    uint8_t yiaddr[4]; // IP
    uint8_t dnsaddr[4]; // DNS
    uint8_t gateway[4];
    uint8_t netmask[4];
    uint8_t siaddr[4];
private:
    int discover();
    int request();
    int offer(uint8_t buf[], int size);
    void add_buf(uint8_t* buf, int len);
    void fill_buf(int len, uint8_t data = 0x00);
    void add_buf(uint8_t c);
    void add_option(uint8_t code, uint8_t* buf = NULL, int len = 0);
    bool verify(uint8_t buf[], int len);
    void callback();
    UDPSocket* m_udp;
    Endpoint m_server;
    uint8_t xid[4];
    bool exit_flag;
    Timer m_interval;
    int m_retry;
    uint8_t m_buf[DHCP_MAX_PACKET_SIZE];
    int m_pos;
    WIZnet_Chip* eth;
};
#endif //DHCPCLIENT_H