Annotation of sys/arch/mvme88k/stand/netboot/if_lereg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_lereg.h,v 1.4 2003/06/02 23:27:52 millert 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 */
! 44: struct lereg1 {
! 45: volatile u_short ler1_rdp; /* register data port */
! 46: volatile u_short ler1_rap; /* register address port */
! 47: };
! 48: /* register addresses */
! 49: #define LE_CSR0 0 /* Control and status register */
! 50: #define LE_CSR1 1 /* low address of init block */
! 51: #define LE_CSR2 2 /* high address of init block */
! 52: #define LE_CSR3 3 /* Bus master and control */
! 53:
! 54: /* Control and status register 0 (csr0) */
! 55: #define LE_C0_ERR 0x8000 /* error summary */
! 56: #define LE_C0_BABL 0x4000 /* transmitter timeout error */
! 57: #define LE_C0_CERR 0x2000 /* collision */
! 58: #define LE_C0_MISS 0x1000 /* missed a packet */
! 59: #define LE_C0_MERR 0x0800 /* memory error */
! 60: #define LE_C0_RINT 0x0400 /* receiver interrupt */
! 61: #define LE_C0_TINT 0x0200 /* transmitter interrupt */
! 62: #define LE_C0_IDON 0x0100 /* initialization done */
! 63: #define LE_C0_INTR 0x0080 /* interrupt condition */
! 64: #define LE_C0_INEA 0x0040 /* interrupt enable */
! 65: #define LE_C0_RXON 0x0020 /* receiver on */
! 66: #define LE_C0_TXON 0x0010 /* transmitter on */
! 67: #define LE_C0_TDMD 0x0008 /* transmit demand */
! 68: #define LE_C0_STOP 0x0004 /* disable all external activity */
! 69: #define LE_C0_STRT 0x0002 /* enable external activity */
! 70: #define LE_C0_INIT 0x0001 /* begin initialization */
! 71:
! 72: #define LE_C0_BITS \
! 73: "\20\20ERR\17BABL\16CERR\15MISS\14MERR\13RINT\
! 74: \12TINT\11IDON\10INTR\07INEA\06RXON\05TXON\04TDMD\03STOP\02STRT\01INIT"
! 75:
! 76: /* Control and status register 3 (csr3) */
! 77: #define LE_C3_BSWP 0x4 /* byte swap */
! 78: #define LE_C3_ACON 0x2 /* ALE control, eh? */
! 79: #define LE_C3_BCON 0x1 /* byte control */
! 80: /*
! 81: * Current size is 13,758 bytes with 8 x 1518 receive buffers and
! 82: * 1 x 1518 transmit buffer.
! 83: */
! 84: struct lereg2 {
! 85: /* initialization block */
! 86: volatile u_short ler2_mode; /* mode */
! 87: volatile u_char ler2_padr[6]; /* physical address */
! 88: #ifdef new_code
! 89: volatile u_short ler2_ladrf[4]; /* logical address filter */
! 90: #else
! 91: volatile u_long ler2_ladrf0; /* logical address filter */
! 92: volatile u_long ler2_ladrf1; /* logical address filter */
! 93: #endif
! 94: volatile u_short ler2_rdra; /* receive descriptor addr */
! 95: volatile u_short ler2_rlen; /* rda high and ring size */
! 96: volatile u_short ler2_tdra; /* transmit descriptor addr */
! 97: volatile u_short ler2_tlen; /* tda high and ring size */
! 98: /* receive message descriptors. bits/hadr are byte order dependent. */
! 99: struct lermd {
! 100: volatile u_short rmd0; /* low address of packet */
! 101: volatile u_char rmd1_bits; /* descriptor bits */
! 102: volatile u_char rmd1_hadr; /* high address of packet */
! 103: volatile short rmd2; /* buffer byte count */
! 104: volatile u_short rmd3; /* message byte count */
! 105: } ler2_rmd[LERBUF];
! 106: /* transmit message descriptors */
! 107: struct letmd {
! 108: volatile u_short tmd0; /* low address of packet */
! 109: volatile u_char tmd1_bits; /* descriptor bits */
! 110: volatile u_char tmd1_hadr; /* high address of packet */
! 111: volatile short tmd2; /* buffer byte count */
! 112: volatile u_short tmd3; /* transmit error bits */
! 113: } ler2_tmd[LETBUF];
! 114: volatile char ler2_rbuf[LERBUF][LEMTU];
! 115: volatile char ler2_tbuf[LETBUF][LEMTU];
! 116: };
! 117: /* Initialzation block (mode) */
! 118: #define LE_MODE_PROM 0x8000 /* promiscuous mode */
! 119: /* 0x7f80 reserved, must be zero */
! 120: #define LE_MODE_INTL 0x0040 /* internal loopback */
! 121: #define LE_MODE_DRTY 0x0020 /* disable retry */
! 122: #define LE_MODE_COLL 0x0010 /* force a collision */
! 123: #define LE_MODE_DTCR 0x0008 /* disable transmit CRC */
! 124: #define LE_MODE_LOOP 0x0004 /* loopback mode */
! 125: #define LE_MODE_DTX 0x0002 /* disable transmitter */
! 126: #define LE_MODE_DRX 0x0001 /* disable receiver */
! 127: #define LE_MODE_NORMAL 0 /* none of the above */
! 128:
! 129:
! 130: /* Receive message descriptor 1 (rmd1_bits) */
! 131: #define LE_R1_OWN 0x80 /* LANCE owns the packet */
! 132: #define LE_R1_ERR 0x40 /* error summary */
! 133: #define LE_R1_FRAM 0x20 /* framing error */
! 134: #define LE_R1_OFLO 0x10 /* overflow error */
! 135: #define LE_R1_CRC 0x08 /* CRC error */
! 136: #define LE_R1_BUFF 0x04 /* buffer error */
! 137: #define LE_R1_STP 0x02 /* start of packet */
! 138: #define LE_R1_ENP 0x01 /* end of packet */
! 139:
! 140: #define LE_R1_BITS \
! 141: "\20\10OWN\7ERR\6FRAM\5OFLO\4CRC\3BUFF\2STP\1ENP"
! 142:
! 143: /* Transmit message descriptor 1 (tmd1_bits) */
! 144: #define LE_T1_OWN 0x80 /* LANCE owns the packet */
! 145: #define LE_T1_ERR 0x40 /* error summary */
! 146: #define LE_T1_MORE 0x10 /* multiple collisions */
! 147: #define LE_T1_ONE 0x08 /* single collision */
! 148: #define LE_T1_DEF 0x04 /* defferred transmit */
! 149: #define LE_T1_STP 0x02 /* start of packet */
! 150: #define LE_T1_ENP 0x01 /* end of packet */
! 151:
! 152: #define LE_T1_BITS \
! 153: "\20\10OWN\7ERR\6RES\5MORE\4ONE\3DEF\2STP\1ENP"
! 154:
! 155: /* Transmit message descriptor 3 (tmd3) */
! 156: #define LE_T3_BUFF 0x8000 /* buffer error */
! 157: #define LE_T3_UFLO 0x4000 /* underflow error */
! 158: #define LE_T3_LCOL 0x1000 /* late collision */
! 159: #define LE_T3_LCAR 0x0800 /* loss of carrier */
! 160: #define LE_T3_RTRY 0x0400 /* retry error */
! 161: #define LE_T3_TDR_MASK 0x03ff /* time domain reflectometry counter */
! 162:
! 163: #define LE_XMD2_ONES 0xf000
! 164:
! 165: #define LE_T3_BITS \
! 166: "\20\20BUFF\17UFLO\16RES\15LCOL\14LCAR\13RTRY"
! 167:
! 168:
! 169: #define LE_ADDR_LOW_MASK (0xffff)
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