1 /* $NetBSD: if_lereg.h,v 1.6 2012/07/26 17:15:22 tsutsui 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)if_lereg.h 7.1 (Berkeley) 5/8/90 32 */ 33 34 #define LEID 21 35 36 #define NTBUF 2 37 #define TLEN 1 38 #define NRBUF 8 39 #define RLEN 3 40 #define BUFSIZE 1518 41 42 #define vu_char volatile u_char 43 #define vu_short volatile u_short 44 45 /* 46 * LANCE registers. 47 */ 48 struct lereg0 { 49 u_char ler0_pad0; 50 vu_char ler0_id; /* ID */ 51 u_char ler0_pad1; 52 vu_char ler0_status; /* interrupt enable/status */ 53 }; 54 55 /* 56 * Control and status bits -- lereg0 57 */ 58 #define LE_IE 0x80 /* interrupt enable */ 59 #define LE_IR 0x40 /* interrupt requested */ 60 #define LE_LOCK 0x08 /* lock status register */ 61 #define LE_ACK 0x04 /* ack of lock */ 62 #define LE_JAB 0x02 /* loss of tx clock (???) */ 63 #define LE_IPL(x) ((((x) >> 4) & 0x3) + 3) 64 65 struct lereg1 { 66 vu_short ler1_rdp; /* data port */ 67 vu_short ler1_rap; /* register select port */ 68 }; 69 70 /* 71 * Control and status bits -- lereg1 72 */ 73 #define LE_SERR 0x8000 74 #define LE_BABL 0x4000 75 #define LE_CERR 0x2000 76 #define LE_MISS 0x1000 77 #define LE_MERR 0x0800 78 #define LE_RINT 0x0400 79 #define LE_TINT 0x0200 80 #define LE_IDON 0x0100 81 #define LE_INTR 0x0080 82 #define LE_INEA 0x0040 83 #define LE_RXON 0x0020 84 #define LE_TXON 0x0010 85 #define LE_TDMD 0x0008 86 #define LE_STOP 0x0004 87 #define LE_STRT 0x0002 88 #define LE_INIT 0x0001 89 90 #define LE_BSWP 0x0004 91 #define LE_ACON 0x0002 92 #define LE_BCON 0x0001 93 94 /* 95 * Overlayed on 16K dual-port RAM. 96 * Current size is 15,284 bytes with 8 x 1518 receive buffers and 97 * 2 x 1518 transmit buffers. 98 */ 99 100 /* 101 * LANCE initialization block 102 */ 103 struct init_block { 104 u_short mode; /* mode register */ 105 u_char padr[6]; /* ethernet address */ 106 u_long ladrf[2]; /* logical address filter (multicast) */ 107 u_short rdra; /* low order pointer to receive ring */ 108 u_short rlen; /* high order pointer and no. rings */ 109 u_short tdra; /* low order pointer to transmit ring */ 110 u_short tlen; /* high order pointer and no rings */ 111 } __attribute__((__packed__)); 112 113 /* 114 * Mode bits -- init_block 115 */ 116 #define LE_PROM 0x8000 /* promiscuous */ 117 #define LE_INTL 0x0040 /* internal loopback */ 118 #define LE_DRTY 0x0020 /* disable retry */ 119 #define LE_COLL 0x0010 /* force collision */ 120 #define LE_DTCR 0x0008 /* disable transmit crc */ 121 #define LE_LOOP 0x0004 /* loopback */ 122 #define LE_DTX 0x0002 /* disable transmitter */ 123 #define LE_DRX 0x0001 /* disable receiver */ 124 #define LE_NORMAL 0x0000 125 126 /* 127 * Message descriptor 128 */ 129 struct mds { 130 u_short addr; 131 u_short flags; 132 u_short bcnt; 133 u_short mcnt; 134 } __attribute__((__packed__)); 135 136 /* Message descriptor flags */ 137 #define LE_OWN 0x8000 /* owner bit, 0=host, 1=LANCE */ 138 #define LE_ERR 0x4000 /* error */ 139 #define LE_STP 0x0200 /* start of packet */ 140 #define LE_ENP 0x0100 /* end of packet */ 141 142 /* Receive ring status flags */ 143 #define LE_FRAM 0x2000 /* framing error error */ 144 #define LE_OFLO 0x1000 /* silo overflow */ 145 #define LE_CRC 0x0800 /* CRC error */ 146 #define LE_RBUFF 0x0400 /* buffer error */ 147 148 /* Transmit ring status flags */ 149 #define LE_MORE 0x1000 /* more than 1 retry */ 150 #define LE_ONE 0x0800 /* one retry */ 151 #define LE_DEF 0x0400 /* deferred transmit */ 152 153 /* Transmit errors */ 154 #define LE_TBUFF 0x8000 /* buffer error */ 155 #define LE_UFLO 0x4000 /* silo underflow */ 156 #define LE_LCOL 0x1000 /* late collision */ 157 #define LE_LCAR 0x0800 /* loss of carrier */ 158 #define LE_RTRY 0x0400 /* tried 16 times */ 159