arp.c

增加了tftp功能的vivi代码

#include "cs8900.h"
//#include "udelay.h"
#include "net.h"
#include "string.h"
#define PacketLength 60
u8 arp_packet[PacketLength]={0xFF,0xFF, 0xFF ,0xFF ,0xFF ,0xFF ,0x60 ,0x20,0x00 ,0x00 ,0x20 ,0x00 ,0x08 ,0x06 ,0x00 ,0x01,
						0x08 ,0x00 ,0x06 ,0x04 ,0x00 ,0x01 ,0x60 ,0x20,0x00 ,0x00 ,0x20 ,0x00 ,0xC0 ,0xA8 ,0x01 ,0xBE,
						0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0xC0 ,0xA8,0x01 ,0x0A ,0x0A ,0x0A ,0x0A ,0x0A ,0x0A ,0x0A,
						0x0A ,0x0A ,0x0A ,0x0A ,0x0A ,0x0A ,0x0A ,0x0A,0x0A ,0x0A ,0x0A ,0x0A ,            
 };
 
 
 
 
s32 arp_broadcast(void)
 {int i,t;
 memcpy(arp_packet+6,board_MAC_address,6);//这是LLC协议中的
 memcpy(arp_packet+22,board_MAC_address,6);//arp协议中的
 //init_timer();
//eth_halt();
//eth_init();

   for(i=0;i<20;i++)
   {
   	 t=eth_send(&arp_packet[0],PacketLength);
	 //if(t>0) printk("send packet ok ");
	// else printk("send packet error");
   	 t=eth_rx();
	 // if(t>0) printk("receive packet ok %d:",t);
	// else printk("receive packet error");
   }  
 return t;
 
 }