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 /* 
  * $Id: NIC.H,v 1.6 2002/02/21 08:25:00 linfusheng Exp $ 
  */ 
 
#ifndef	NIC_H 
#define NIC_H 
 
//#define INCLUDE_3C90X 
#define INCLUDE_RTL8139 
#include "cards.h" 
 
 
/* 
 * Structure defining statistics and other data kept regarding a network 
 * interface. 
 */ 
struct	nic_data { 
	/* generic interface information */ 
	unsigned char	nici_type;		/* ethernet, tokenring, etc. */ 
	unsigned char	nici_addrlen;		/* media address length */ 
	unsigned char	nici_hdrlen;		/* media header length */ 
	unsigned char	nici_link_state;		/* current link state */ 
	unsigned long	nici_mtu;		/* maximum transmission unit */ 
	unsigned long	nici_metric;		/* routing metric (external only) */ 
	unsigned long	nici_baudrate;		/* linespeed */ 
	/* volatile statistics */ 
	unsigned long	nici_ipackets;		/* packets received on interface */ 
	unsigned long	nici_ierrors;		/* input errors on interface */ 
	unsigned long	nici_opackets;		/* packets sent on interface */ 
	unsigned long	nici_oerrors;		/* output errors on interface */ 
	unsigned long	nici_collisions;		/* collisions on csma interfaces */ 
	unsigned long	nici_ibytes;		/* total number of octets received */ 
	unsigned long	nici_obytes;		/* total number of octets sent */ 
	unsigned long	nici_imcasts;		/* packets received via multicast */ 
	unsigned long	nici_omcasts;		/* packets sent via multicast */ 
	unsigned long	nici_iqdrops;		/* dropped on input, this interface */ 
	unsigned long	nici_noproto;		/* destined for unsupported protocol */ 
	unsigned long	nici_lastchange;	/* last operational state change */ 
}; 
 
/* 
 *	Structure returned from eth_probe and passed to other driver 
 *	functions. 
 */ 
#define IFNAMESIZ	64 
struct nic 
{ 
	unsigned short  vendor,device; 
	int		index; 
	char		name[IFNAMESIZ]; 
	void            *pci_data; 
 
	unsigned  long	ioaddr; 
	int             irq; 
	unsigned short	flags;	/* nic flags */ 
	unsigned char   node_addr[ETH_ALEN]; 
	struct in_addr	ip_addr; 
	struct in_addr	netmask; 
 
 
	int		timeout; 
 
	struct	nic_data nic_data;/* stats and other data about nic */ 
 
	 
	int		(*ioctl)(struct nic *,unsigned long cmd,caddr_t data); 
        int             (*start)(struct nic *); 
//	void		(*reset)(struct nic *); 
        int             (*recv)(struct nic *,unsigned char *buf,int *len); 
	int		(*transmit)(struct nic *, char *p,int plen); 
	void		(*watchdog)(struct nic *); 
}; 
 
 
 
/* 
 * Interface request structure used for socket 
 * ioctl's.  All interface ioctl's must have parameter 
 * definitions which begin with ifr_name.  The 
 * remainder may be interface specific. 
 */ 
struct	ifreq { 
	char	ifr_name[IFNAMESIZ];		/* if name, e.g. "en0" */ 
	union { 
		struct in_addr ifru_addr; 
		struct in_addr ifru_dstaddr; 
		struct in_addr ifru_broadaddr; 
		short	ifru_flags; 
		int	ifru_metric; 
		caddr_t	ifru_data; 
	} ifr_ifru; 
#define	ifr_addr	ifr_ifru.ifru_addr	/* address */ 
#define	ifr_dstaddr	ifr_ifru.ifru_dstaddr	/* other end of p-to-p link */ 
#define	ifr_broadaddr	ifr_ifru.ifru_broadaddr	/* broadcast address */ 
#define	ifr_flags	ifr_ifru.ifru_flags	/* flags */ 
#define	ifr_metric	ifr_ifru.ifru_metric	/* metric */ 
#define	ifr_mtu		ifr_ifru.ifru_metric	/* mtu (overload) */ 
#define	ifr_media	ifr_ifru.ifru_metric	/* media options (overload) */ 
#define	ifr_data	ifr_ifru.ifru_data	/* for use by interface */ 
}; 
 
 
 
struct nbuf{ 
	unsigned char packet[1536]; 
	int packetlen; 
 
	unsigned char *data; 
	int len; 
 
	struct nic *nic; 
	/* Transport layer header */ 
	union 
	{ 
		struct tcphdr	*th; 
		struct udphdr	*uh; 
		struct icmphdr	*icmph; 
		unsigned char	*raw; 
	} th; 
 
	/* Network layer header */ 
	union 
	{ 
		struct iphdr	*iph; 
		struct ether_arp *arph; 
		unsigned char	*raw; 
	} nh; 
   
	/* Link layer header */ 
	union  
	{	 
	  	struct ethhdr	*ethernet; 
	  	unsigned char 	*raw; 
	} lh; 
}; 
 
 
extern void netif_slowtimo(void *arg); 
extern void netif_init(void); 
extern void netif_rx(unsigned char *packet,int packet_len,struct nic *nic); 
extern void netif_bh(void); 
extern int netif_ioctl(u_long cmd,caddr_t data); 
#endif	/* NIC_H */