163 lines
5.1 KiB
C
163 lines
5.1 KiB
C
/* $NetBSD: if_lereg.h,v 1.1 1996/01/01 18:10:56 thorpej Exp $ */
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/*
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* Copyright (c) 1982, 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_lereg.h 7.1 (Berkeley) 5/8/90
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*/
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#define LEID 21
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#define NTBUF 2
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#define TLEN 1
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#define NRBUF 8
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#define RLEN 3
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#define BUFSIZE 1518
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#define vu_char volatile u_char
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#define vu_short volatile u_short
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/*
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* LANCE registers.
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*/
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struct lereg0 {
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u_char ler0_pad0;
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vu_char ler0_id; /* ID */
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u_char ler0_pad1;
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vu_char ler0_status; /* interrupt enable/status */
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};
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/*
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* Control and status bits -- lereg0
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*/
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#define LE_IE 0x80 /* interrupt enable */
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#define LE_IR 0x40 /* interrupt requested */
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#define LE_LOCK 0x08 /* lock status register */
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#define LE_ACK 0x04 /* ack of lock */
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#define LE_JAB 0x02 /* loss of tx clock (???) */
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#define LE_IPL(x) ((((x) >> 4) & 0x3) + 3)
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struct lereg1 {
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vu_short ler1_rdp; /* data port */
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vu_short ler1_rap; /* register select port */
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};
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/*
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* Control and status bits -- lereg1
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*/
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#define LE_SERR 0x8000
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#define LE_BABL 0x4000
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#define LE_CERR 0x2000
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#define LE_MISS 0x1000
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#define LE_MERR 0x0800
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#define LE_RINT 0x0400
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#define LE_TINT 0x0200
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#define LE_IDON 0x0100
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#define LE_INTR 0x0080
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#define LE_INEA 0x0040
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#define LE_RXON 0x0020
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#define LE_TXON 0x0010
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#define LE_TDMD 0x0008
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#define LE_STOP 0x0004
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#define LE_STRT 0x0002
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#define LE_INIT 0x0001
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#define LE_BSWP 0x0004
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#define LE_ACON 0x0002
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#define LE_BCON 0x0001
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/*
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* Overlayed on 16K dual-port RAM.
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* Current size is 15,284 bytes with 8 x 1518 receive buffers and
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* 2 x 1518 transmit buffers.
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*/
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/*
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* LANCE initialization block
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*/
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struct init_block {
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u_short mode; /* mode register */
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u_char padr[6]; /* ethernet address */
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u_long ladrf[2]; /* logical address filter (multicast) */
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u_short rdra; /* low order pointer to receive ring */
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u_short rlen; /* high order pointer and no. rings */
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u_short tdra; /* low order pointer to transmit ring */
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u_short tlen; /* high order pointer and no rings */
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};
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/*
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* Mode bits -- init_block
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*/
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#define LE_PROM 0x8000 /* promiscuous */
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#define LE_INTL 0x0040 /* internal loopback */
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#define LE_DRTY 0x0020 /* disable retry */
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#define LE_COLL 0x0010 /* force collision */
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#define LE_DTCR 0x0008 /* disable transmit crc */
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#define LE_LOOP 0x0004 /* loopback */
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#define LE_DTX 0x0002 /* disable transmitter */
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#define LE_DRX 0x0001 /* disable receiver */
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#define LE_NORMAL 0x0000
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/*
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* Message descriptor
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*/
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struct mds {
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u_short addr;
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u_short flags;
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u_short bcnt;
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u_short mcnt;
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};
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/* Message descriptor flags */
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#define LE_OWN 0x8000 /* owner bit, 0=host, 1=LANCE */
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#define LE_ERR 0x4000 /* error */
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#define LE_STP 0x0200 /* start of packet */
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#define LE_ENP 0x0100 /* end of packet */
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/* Receive ring status flags */
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#define LE_FRAM 0x2000 /* framing error error */
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#define LE_OFLO 0x1000 /* silo overflow */
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#define LE_CRC 0x0800 /* CRC error */
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#define LE_RBUFF 0x0400 /* buffer error */
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/* Transmit ring status flags */
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#define LE_MORE 0x1000 /* more than 1 retry */
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#define LE_ONE 0x0800 /* one retry */
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#define LE_DEF 0x0400 /* deferred transmit */
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/* Transmit errors */
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#define LE_TBUFF 0x8000 /* buffer error */
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#define LE_UFLO 0x4000 /* silo underflow */
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#define LE_LCOL 0x1000 /* late collision */
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#define LE_LCAR 0x0800 /* loss of carrier */
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#define LE_RTRY 0x0400 /* tried 16 times */
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