if_lereg.h revision 1.5
1/* $NetBSD: if_lereg.h,v 1.5 2021/12/05 03:04:41 msaitoh Exp $ */ 2 3/*- 4 * Copyright (c) 1982, 1992, 1993 5 * The Regents of the University of California. 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 8.2 (Berkeley) 10/30/93 32 */ 33 34#define LEMTU 1518 35#define LEMINSIZE 60 /* should be 64 if mode DTCR is set */ 36#define LERBUF 8 37#define LERBUFLOG2 3 38#define LE_RLEN (LERBUFLOG2 << 13) 39#define LETBUF 1 40#define LETBUFLOG2 0 41#define LE_TLEN (LETBUFLOG2 << 13) 42 43/* Local Area Network Controller for Ethernet (LANCE) registers */ 44struct lereg1 { 45 volatile u_short ler1_rdp; /* register data port */ 46 volatile u_short ler1_rap; /* register address port */ 47}; 48 49/* register addresses */ 50#define LE_CSR0 0 /* Control and status register */ 51#define LE_CSR1 1 /* low address of init block */ 52#define LE_CSR2 2 /* high address of init block */ 53#define LE_CSR3 3 /* Bus master and control */ 54 55/* Control and status register 0 (csr0) */ 56#define LE_C0_ERR 0x8000 /* error summary */ 57#define LE_C0_BABL 0x4000 /* transmitter timeout error */ 58#define LE_C0_CERR 0x2000 /* collision */ 59#define LE_C0_MISS 0x1000 /* missed a packet */ 60#define LE_C0_MERR 0x0800 /* memory error */ 61#define LE_C0_RINT 0x0400 /* receiver interrupt */ 62#define LE_C0_TINT 0x0200 /* transmitter interrupt */ 63#define LE_C0_IDON 0x0100 /* initialization done */ 64#define LE_C0_INTR 0x0080 /* interrupt condition */ 65#define LE_C0_INEA 0x0040 /* interrupt enable */ 66#define LE_C0_RXON 0x0020 /* receiver on */ 67#define LE_C0_TXON 0x0010 /* transmitter on */ 68#define LE_C0_TDMD 0x0008 /* transmit demand */ 69#define LE_C0_STOP 0x0004 /* disable all external activity */ 70#define LE_C0_STRT 0x0002 /* enable external activity */ 71#define LE_C0_INIT 0x0001 /* begin initialization */ 72 73#define LE_C0_BITS \ 74 "\20\20ERR\17BABL\16CERR\15MISS\14MERR\13RINT\ 75\12TINT\11IDON\10INTR\07INEA\06RXON\05TXON\04TDMD\03STOP\02STRT\01INIT" 76 77/* Control and status register 3 (csr3) */ 78#define LE_C3_BSWP 0x4 /* byte swap */ 79#define LE_C3_ACON 0x2 /* ALE control, eh? */ 80#define LE_C3_BCON 0x1 /* byte control */ 81/* 82 * Current size is 13,758 bytes with 8 x 1518 receive buffers and 83 * 1 x 1518 transmit buffer. 84 */ 85struct lereg2 { 86 /* initialization block */ 87 volatile u_short ler2_mode; /* mode */ 88 volatile u_char ler2_padr[6]; /* physical address */ 89#ifdef new_code 90 volatile u_short ler2_ladrf[4]; /* logical address filter */ 91#else 92 volatile u_long ler2_ladrf0; /* logical address filter */ 93 volatile u_long ler2_ladrf1; /* logical address filter */ 94#endif 95 volatile u_short ler2_rdra; /* receive descriptor addr */ 96 volatile u_short ler2_rlen; /* rda high and ring size */ 97 volatile u_short ler2_tdra; /* transmit descriptor addr */ 98 volatile u_short ler2_tlen; /* tda high and ring size */ 99 /* receive message descriptors. bits/hadr are byte order dependent. */ 100 struct lermd { 101 volatile u_short rmd0; /* low address of packet */ 102 volatile u_char rmd1_bits; /* descriptor bits */ 103 volatile u_char rmd1_hadr; /* high address of packet */ 104 volatile short rmd2; /* buffer byte count */ 105 volatile u_short rmd3; /* message byte count */ 106 } ler2_rmd[LERBUF]; 107 /* transmit message descriptors */ 108 struct letmd { 109 volatile u_short tmd0; /* low address of packet */ 110 volatile u_char tmd1_bits; /* descriptor bits */ 111 volatile u_char tmd1_hadr; /* high address of packet */ 112 volatile short tmd2; /* buffer byte count */ 113 volatile u_short tmd3; /* transmit error bits */ 114 } ler2_tmd[LETBUF]; 115 volatile char ler2_rbuf[LERBUF][LEMTU]; 116 volatile char ler2_tbuf[LETBUF][LEMTU]; 117}; 118 119/* Initialization block (mode) */ 120#define LE_MODE_PROM 0x8000 /* promiscuous mode */ 121/* 0x7f80 reserved, must be zero */ 122#define LE_MODE_INTL 0x0040 /* internal loopback */ 123#define LE_MODE_DRTY 0x0020 /* disable retry */ 124#define LE_MODE_COLL 0x0010 /* force a collision */ 125#define LE_MODE_DTCR 0x0008 /* disable transmit CRC */ 126#define LE_MODE_LOOP 0x0004 /* loopback mode */ 127#define LE_MODE_DTX 0x0002 /* disable transmitter */ 128#define LE_MODE_DRX 0x0001 /* disable receiver */ 129#define LE_MODE_NORMAL 0 /* none of the above */ 130 131 132/* Receive message descriptor 1 (rmd1_bits) */ 133#define LE_R1_OWN 0x80 /* LANCE owns the packet */ 134#define LE_R1_ERR 0x40 /* error summary */ 135#define LE_R1_FRAM 0x20 /* framing error */ 136#define LE_R1_OFLO 0x10 /* overflow error */ 137#define LE_R1_CRC 0x08 /* CRC error */ 138#define LE_R1_BUFF 0x04 /* buffer error */ 139#define LE_R1_STP 0x02 /* start of packet */ 140#define LE_R1_ENP 0x01 /* end of packet */ 141 142#define LE_R1_BITS \ 143 "\20\10OWN\7ERR\6FRAM\5OFLO\4CRC\3BUFF\2STP\1ENP" 144 145/* Transmit message descriptor 1 (tmd1_bits) */ 146#define LE_T1_OWN 0x80 /* LANCE owns the packet */ 147#define LE_T1_ERR 0x40 /* error summary */ 148#define LE_T1_MORE 0x10 /* multiple collisions */ 149#define LE_T1_ONE 0x08 /* single collision */ 150#define LE_T1_DEF 0x04 /* defferred transmit */ 151#define LE_T1_STP 0x02 /* start of packet */ 152#define LE_T1_ENP 0x01 /* end of packet */ 153 154#define LE_T1_BITS \ 155 "\20\10OWN\7ERR\6RES\5MORE\4ONE\3DEF\2STP\1ENP" 156 157/* Transmit message descriptor 3 (tmd3) */ 158#define LE_T3_BUFF 0x8000 /* buffer error */ 159#define LE_T3_UFLO 0x4000 /* underflow error */ 160#define LE_T3_LCOL 0x1000 /* late collision */ 161#define LE_T3_LCAR 0x0800 /* loss of carrier */ 162#define LE_T3_RTRY 0x0400 /* retry error */ 163#define LE_T3_TDR_MASK 0x03ff /* time domain reflectometry counter */ 164 165#define LE_XMD2_ONES 0xf000 166 167#define LE_T3_BITS \ 168 "\20\20BUFF\17UFLO\16RES\15LCOL\14LCAR\13RTRY" 169 170 171#define LE_ADDR_LOW_MASK (0xffff) 172 173