44b0net.c

44B0开发板上8019网卡驱动的例子

#include "44b0net.h"
#include "necfg.h"
#include "ne2000.h"
#include "Armnet.h"
#include "44b.h"
//#include "stdio.h"

extern unsigned int IP_ADDRESS;
extern ETHERFRAME etherframe;
extern NODE locnode;

unsigned char default_mac[MACLEN] = {0x12,0x34,0x56,0x78,0x90,0xab};

void z44b0net_init(void)
{
	//初始化片选
	// PORT B GROUP
	/* BIT 10   9    8       7      6        5     4     3     2     1     0    */
	/*     /CS5 /CS4 /CS3    /CS2   /CS1     nWBE3 nWBE2 /SRAS /SCAS SCLS  SCKE	*/
	/*RTL8019   NC    USBD12 NV_Flash NC    NC    Sdram Sdram Sdram Sdram*/
	/*     1,   0,   1,      1,     1,       0,    0,    1,    1,    1,    1    */
	//nGCS5 net cs
//	rPDATB = rPDATB|(1<<10);
	rPCONB = rPCONB|(1<<10);
	
	//EXTINT1 as net int ,falling
//	rPDATG |= (3<<2);
//	rPUPG &= ~(1<<1);  // 0 enable
	//rPUPG |= (1<<1);//1 disable
	
//	rEXTINT &= ~(0x7<<4);
//	rEXTINT |= (0x3<<4);  //extint1 falling
	
	NodeInit();
//	NetIntPreInit();
	ArpInit();	

}
void z44b0net_testmenu(void)
{
    printf("\nTEST NET FOR EELAB44B0 BOARD");
	printf("IP: %u.%u.%u.%u\n", (IP_ADDRESS>>24)&0xff, (IP_ADDRESS>>16)&0xff, (IP_ADDRESS>>8)&0xff, IP_ADDRESS&0xff);

	printf("\n1:TEST ICMP				");
	printf("\n2:TEST TFTP     ");

	
}
void z44b0net_testicmp(void)
{
	printf("testa\n\n");    

}
void z44b0net_testtftp(void)
{
	printf("testb\n\n");    

}

void NetSever(void)
{	
	unsigned short rxlen,ip_len;
	unsigned char net_isr;
	ARPKT *arp;
	ETHERFRAME *efp;
	IPKT *ip;
	efp = &etherframe;
	net_isr = EN_ISR;
//	printf("EN_ISR:0x%x\n",net_isr);
	if(net_isr & ENISR_RX)
	{
		DEBUGF(DEMO_DEBUG,("Rtl8019 Interrupted RX\n"));
		EN_ISR |= ENISR_RX;
		memset((unsigned char *)efp, 0, sizeof(ETHERFRAME)); //buffer set 0
		rxlen = GetEthernet(efp);
		SwapEther(efp);
		if(IsArp(efp, rxlen))
		{
			arp = (ARPKT *)(efp->edata);
			if(READ_PACKED(arp->dip)==locnode.ip &&(arp->op==ARPREQ || arp->op==ARPRESP))
			{
				DEBUGF(ARP_DEBUG,("Get ARP\n"));
				ArpRcvPacket(efp);
			}
		}
		else
		{
			ip_len = IsIp(efp, rxlen);
			if(ip_len)
			{
				ip = (IPKT *)(efp->edata);
				DEBUGF(DEMO_DEBUG,("Get IP\n"));
				if(IsIcmp(ip, ip_len))
				{
					DEBUGF(ICMP_DEBUG,("Get ICMP\n"));
					IcmpRcvPacket(efp);
				}
				else if(IsUdp(ip, ip_len))
				{
					DEBUGF(DEMO_DEBUG,("Get UDP\n"));
					UdpRcvPacket(efp);
				}
			}
		}
	}
	
	if(net_isr & ENISR_RX_ERR)
	{
		DEBUGF(DEMO_DEBUG,("Rtl8019 Interrupted RX_ERR\n"));
		EN_ISR |= ENISR_RX_ERR;
	}
	
	if(net_isr & ENISR_TX)
	{
		DEBUGF(DEMO_DEBUG,("Rtl8019 Interrupted TX\n"));
		EN_ISR |= ENISR_TX;
	}
	
	if(net_isr & ENISR_TX_ERR)
	{
		DEBUGF(DEMO_DEBUG,("Rtl8019 Interrupted TX_ERR\n"));
		EN_ISR |= ENISR_TX_ERR;
	}		
}
//***************************************************************************

void NodeInit(void)
{
	IP_ADDRESS = IP4_ADDR(192,168,0,100);
	locnode.ip = IP_ADDRESS;
	locnode.mask = IP4_ADDR(255,255,255,0);
	locnode.gate = IP4_ADDR(192,168,0,1);
	memcpy(locnode.mac,default_mac,6);
	locnode.port = 9000;
}

void NetIntPreInit(void)
{
//	rPCONG = rPCONG | 0x00c0;
//	rPUPG = rPUPG & 0xf7;
//	rEXTINT |= 0x4000;
	//nGCS5 net cs
//	rPDATB = rPDATB|(1<<10);
	rPCONB = rPCONB|(1<<10);
	
	rPCONG = rPCONG | 0x000c;
	rPUPG = rPUPG & 0xfd;
	rEXTINT |= 0x0040;  //rising  //falling 0x0020;
}