if_lereg.h revision 1.7
1 /* $NetBSD: if_lereg.h,v 1.7 1994/10/26 07:24:23 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)if_lereg.h 7.1 (Berkeley) 5/8/90 36 */ 37 38 #define LEID 21 39 40 #define NTBUF 2 41 #define TLEN 1 42 #define NRBUF 8 43 #define RLEN 3 44 #define BUFSIZE 1518 45 46 #define vu_char volatile u_char 47 #define vu_short volatile u_short 48 49 /* 50 * LANCE registers. 51 */ 52 struct lereg0 { 53 u_char ler0_pad0; 54 vu_char ler0_id; /* ID */ 55 u_char ler0_pad1; 56 vu_char ler0_status; /* interrupt enable/status */ 57 }; 58 59 /* 60 * Control and status bits -- lereg0 61 */ 62 #define LE_IE 0x80 /* interrupt enable */ 63 #define LE_IR 0x40 /* interrupt requested */ 64 #define LE_LOCK 0x08 /* lock status register */ 65 #define LE_ACK 0x04 /* ack of lock */ 66 #define LE_JAB 0x02 /* loss of tx clock (???) */ 67 #define LE_IPL(x) ((((x) >> 4) & 0x3) + 3) 68 69 struct lereg1 { 70 vu_short ler1_rdp; /* data port */ 71 vu_short ler1_rap; /* register select port */ 72 }; 73 74 /* 75 * Control and status bits -- lereg1 76 */ 77 #define LE_SERR 0x8000 78 #define LE_BABL 0x4000 79 #define LE_CERR 0x2000 80 #define LE_MISS 0x1000 81 #define LE_MERR 0x0800 82 #define LE_RINT 0x0400 83 #define LE_TINT 0x0200 84 #define LE_IDON 0x0100 85 #define LE_INTR 0x0080 86 #define LE_INEA 0x0040 87 #define LE_RXON 0x0020 88 #define LE_TXON 0x0010 89 #define LE_TDMD 0x0008 90 #define LE_STOP 0x0004 91 #define LE_STRT 0x0002 92 #define LE_INIT 0x0001 93 94 #define LE_BSWP 0x0004 95 #define LE_ACON 0x0002 96 #define LE_BCON 0x0001 97 98 /* 99 * Overlayed on 16K dual-port RAM. 100 * Current size is 15,284 bytes with 8 x 1518 receive buffers and 101 * 2 x 1518 transmit buffers. 102 */ 103 104 /* 105 * LANCE initialization block 106 */ 107 struct init_block { 108 u_short mode; /* mode register */ 109 u_char padr[6]; /* ethernet address */ 110 u_long ladrf[2]; /* logical address filter (multicast) */ 111 u_short rdra; /* low order pointer to receive ring */ 112 u_short rlen; /* high order pointer and no. rings */ 113 u_short tdra; /* low order pointer to transmit ring */ 114 u_short tlen; /* high order pointer and no rings */ 115 }; 116 117 /* 118 * Mode bits -- init_block 119 */ 120 #define LE_PROM 0x8000 /* promiscuous */ 121 #define LE_INTL 0x0040 /* internal loopback */ 122 #define LE_DRTY 0x0020 /* disable retry */ 123 #define LE_COLL 0x0010 /* force collision */ 124 #define LE_DTCR 0x0008 /* disable transmit crc */ 125 #define LE_LOOP 0x0004 /* loopback */ 126 #define LE_DTX 0x0002 /* disable transmitter */ 127 #define LE_DRX 0x0001 /* disable receiver */ 128 #define LE_NORMAL 0x0000 129 130 /* 131 * Message descriptor 132 */ 133 struct mds { 134 u_short addr; 135 u_short flags; 136 u_short bcnt; 137 u_short mcnt; 138 }; 139 140 /* Message descriptor flags */ 141 #define LE_OWN 0x8000 /* owner bit, 0=host, 1=LANCE */ 142 #define LE_ERR 0x4000 /* error */ 143 #define LE_STP 0x0200 /* start of packet */ 144 #define LE_ENP 0x0100 /* end of packet */ 145 146 /* Receive ring status flags */ 147 #define LE_FRAM 0x2000 /* framing error error */ 148 #define LE_OFLO 0x1000 /* silo overflow */ 149 #define LE_CRC 0x0800 /* CRC error */ 150 #define LE_RBUFF 0x0400 /* buffer error */ 151 152 /* Transmit ring status flags */ 153 #define LE_MORE 0x1000 /* more than 1 retry */ 154 #define LE_ONE 0x0800 /* one retry */ 155 #define LE_DEF 0x0400 /* deferred transmit */ 156 157 /* Transmit errors */ 158 #define LE_TBUFF 0x8000 /* buffer error */ 159 #define LE_UFLO 0x4000 /* silo underflow */ 160 #define LE_LCOL 0x1000 /* late collision */ 161 #define LE_LCAR 0x0800 /* loss of carrier */ 162 #define LE_RTRY 0x0400 /* tried 16 times */ 163
Indexes created Mon Sep 29 21:09:56 GMT 2025