1993/1124/pc/etherif.h (diff list | history)

pc/etherif.h on 1993/1113
1993/1113		enum { MaxEther = 4, Ntypes = 8, }; typedef struct Ether Ether; struct Ether { ISAConf; /* hardware info */ void (*attach)(Ether*); /* filled in by reset routine */ long (*write)(Ether*, void*, long);
1993/1124		void (*interrupt)(Ureg*, void*);
1993/1113		void *private; Etherpkt tpkt; /* transmit buffer */ Etherpkt rpkt; /* receive buffer */ QLock tlock; /* lock for grabbing transmitter queue */ Rendez tr; /* wait here for free xmit buffer */
1993/1119		long tlen; /* length of data in tpkt */
1993/1113		Netif; };
1993/1116		typedef struct { uchar bit16; /* true if a 16 bit interface */ uchar ram; /* true if card has shared memory */ ulong dp8390; /* I/O address of 8390 */ ulong data; /* I/O data port if no shared memory */
1993/1118		uchar nxtpkt; /* receive: software bndry */
1993/1116		uchar tstart; /* 8390 ring addresses */ uchar pstart; uchar pstop; } Dp8390;
1993/1118		#define Dp8390BufSz 256 extern int dp8390reset(Ether*); extern void dp8390getea(Ether*); extern void dp8390setea(Ether*);
1993/1116
1993/1113		#define NEXT(x, l) (((x)+1)%(l)) #define HOWMANY(x, y) (((x)+((y)-1))/(y)) #define ROUNDUP(x, y) (HOWMANY((x), (y))*(y)) extern void addethercard(char*, int(*)(Ether*));