sys/i386/isa/if_isreg.h

/*
 * Isolan AT 4141-0 Ethernet driver header file
 * Isolink 4110
 *
 * By Paul Richards
 *
 * Copyright (C) 1993, Paul Richards. This software may be used, modified,
 *   copied, distributed, and sold, in both source and binary form provided
 *   that the above copyright and these terms are retained. Under no
 *   circumstances is the author responsible for the proper functioning
 *   of this software, nor does the author assume any responsibility
 *   for damages incurred with its use.
 *
 *      $Id: if_isreg.h,v 1.3 1993/10/24 04:27:00 paul Exp $
 */

/*
 * Initialize multicast address hashing registers to accept
 * all multicasts (only used when in promiscuous mode)
 */
#if NBPFILTER > 0
#define MULTI_INIT_ADDR 0xff
#else
#define MULTI_INIT_ADDR 0
#endif

/* Declarations specific to this driver */
#define NTBUF 2
#define TLEN 1
#define NRBUF 8
#define RLEN 3
#define BUFSIZE 1518
#define BICC_RDP 0xc
#define BICC_RAP 0xe
#define NE2100_RDP 0x10
#define NE2100_RAP 0x12

/* Board types */
#define BICC 1
#define NE2100 2

/* Am7990 or Am79960 */
#define LANCE 1
#define LANCE_MASK 0x07
#define PCnet_ISA 2
#define PCnet_ISA_MASK 0x0


/* Control and status register 0 flags */

#define ERR     0x8000
#define BABL    0x4000
#define CERR    0x2000
#define MISS    0x1000
#define MERR    0x0800
#define RINT    0x0400
#define TINT    0x0200
#define IDON    0x0100
#define INTR    0x0080
#define INEA    0x0040
#define RXON    0x0020
#define TXON    0x0010
#define TDMD    0x0008
#define STOP    0x0004
#define STRT    0x0002
#define INIT    0x0001

/* Coontrol and status register 3 flags */

#define BSWP    0x0004
#define ACON    0x0002
#define BCON    0x0001

/* Initialisation block (must be on word boundary) */

struct init_block {
       u_short mode;            /* Mode register                        */
       u_char  padr[6];         /* Ethernet address                     */
       u_char ladrf[8];         /* Logical address filter (multicast)   */
       u_short rdra;            /* Low order pointer to receive ring    */
       u_short rlen;            /* High order pointer and no. rings     */
       u_short tdra;            /* Low order pointer to transmit ring   */
       u_short tlen;            /* High order pointer and no rings      */
       };

/* Mode settings */

#define PROM    0x8000          /* Promiscuous          */
#define INTL    0x0040          /* Internal loopback    */
#define DRTY    0x0020          /* Disable retry        */
#define COLL    0x0010          /* Force collision      */
#define DTCR    0x0008          /* Disable transmit crc */
#define LOOP    0x0004          /* Loop back            */
#define DTX     0x0002          /* Disable transmitter  */
#define DRX     0x0001          /* Disable receiver     */

/* Message descriptor structure */

struct mds {
       u_short addr;
       u_short flags;
       u_short bcnt;
       u_short mcnt;
       };

/* Receive ring status flags */

#define OWN     0x8000          /* Owner bit, 0=host, 1=Lance   */
#define MDERR   0x4000          /* Error                        */
#define FRAM    0x2000          /* Framing error error          */
#define OFLO    0x1000          /* Silo overflow                */
#define CRC     0x0800          /* CRC error                    */
#define RBUFF   0x0400          /* Buffer error                 */
#define STP     0x0200          /* Start of packet              */
#define ENP     0x0100          /* End of packet                */

/* Transmit ring flags */

#define MORE    0x1000          /* More than 1 retry    */
#define ONE     0x0800          /* One retry            */
#define DEF     0x0400          /* Deferred transmit    */

/* Transmit errors */

#define TBUFF   0x8000          /* Buffer error         */
#define UFLO    0x4000          /* Silo underflow       */
#define LCOL    0x1000          /* Late collision       */
#define LCAR    0x0800          /* Loss of carrier      */
#define RTRY    0x0400          /* Tried 16 times       */