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/* $OpenBSD: if_lereg.h,v 1.6 2009/02/17 18:42:06 miod Exp $ */
/*-
* Copyright (c) 1982, 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)if_lereg.h 8.2 (Berkeley) 10/30/93
*/
#define LEMTU 1518
#define LEMINSIZE 60 /* should be 64 if mode DTCR is set */
#define LERBUF 8
#define LERBUFLOG2 3
#define LE_RLEN (LERBUFLOG2 << 13)
#define LETBUF 1
#define LETBUFLOG2 0
#define LE_TLEN (LETBUFLOG2 << 13)
#define LEMEMSIZE 16384 /* memory needed to fulfill above settings */
/* Local Area Network Controller for Ethernet (LANCE) registers */
struct lereg1 {
volatile u_short ler1_rdp; /* register data port */
volatile u_short ler1_rap; /* register address port */
};
/* register addresses */
#define LE_CSR0 0 /* Control and status register */
#define LE_CSR1 1 /* low address of init block */
#define LE_CSR2 2 /* high address of init block */
#define LE_CSR3 3 /* Bus master and control */
/* Control and status register 0 (csr0) */
#define LE_C0_ERR 0x8000 /* error summary */
#define LE_C0_BABL 0x4000 /* transmitter timeout error */
#define LE_C0_CERR 0x2000 /* collision */
#define LE_C0_MISS 0x1000 /* missed a packet */
#define LE_C0_MERR 0x0800 /* memory error */
#define LE_C0_RINT 0x0400 /* receiver interrupt */
#define LE_C0_TINT 0x0200 /* transmitter interrupt */
#define LE_C0_IDON 0x0100 /* initialization done */
#define LE_C0_INTR 0x0080 /* interrupt condition */
#define LE_C0_INEA 0x0040 /* interrupt enable */
#define LE_C0_RXON 0x0020 /* receiver on */
#define LE_C0_TXON 0x0010 /* transmitter on */
#define LE_C0_TDMD 0x0008 /* transmit demand */
#define LE_C0_STOP 0x0004 /* disable all external activity */
#define LE_C0_STRT 0x0002 /* enable external activity */
#define LE_C0_INIT 0x0001 /* begin initialization */
#define LE_C0_BITS \
"\20\20ERR\17BABL\16CERR\15MISS\14MERR\13RINT\
\12TINT\11IDON\10INTR\07INEA\06RXON\05TXON\04TDMD\03STOP\02STRT\01INIT"
/* Control and status register 3 (csr3) */
#define LE_C3_BSWP 0x4 /* byte swap */
#define LE_C3_ACON 0x2 /* ALE control, eh? */
#define LE_C3_BCON 0x1 /* byte control */
/*
* Current size is 13,758 bytes with 8 x 1518 receive buffers and
* 1 x 1518 transmit buffer.
*/
struct lereg2 {
/* initialization block */
volatile u_short ler2_mode; /* mode */
volatile u_char ler2_padr[6]; /* physical address */
#ifdef new_code
volatile u_short ler2_ladrf[4]; /* logical address filter */
#else
volatile u_long ler2_ladrf0; /* logical address filter */
volatile u_long ler2_ladrf1; /* logical address filter */
#endif
volatile u_short ler2_rdra; /* receive descriptor addr */
volatile u_short ler2_rlen; /* rda high and ring size */
volatile u_short ler2_tdra; /* transmit descriptor addr */
volatile u_short ler2_tlen; /* tda high and ring size */
/* receive message descriptors. bits/hadr are byte order dependent. */
struct lermd {
volatile u_short rmd0; /* low address of packet */
volatile u_char rmd1_bits; /* descriptor bits */
volatile u_char rmd1_hadr; /* high address of packet */
volatile short rmd2; /* buffer byte count */
volatile u_short rmd3; /* message byte count */
} ler2_rmd[LERBUF];
/* transmit message descriptors */
struct letmd {
volatile u_short tmd0; /* low address of packet */
volatile u_char tmd1_bits; /* descriptor bits */
volatile u_char tmd1_hadr; /* high address of packet */
volatile short tmd2; /* buffer byte count */
volatile u_short tmd3; /* transmit error bits */
} ler2_tmd[LETBUF];
volatile char ler2_rbuf[LERBUF][LEMTU];
volatile char ler2_tbuf[LETBUF][LEMTU];
};
/* Initialzation block (mode) */
#define LE_MODE_PROM 0x8000 /* promiscuous mode */
/* 0x7f80 reserved, must be zero */
#define LE_MODE_INTL 0x0040 /* internal loopback */
#define LE_MODE_DRTY 0x0020 /* disable retry */
#define LE_MODE_COLL 0x0010 /* force a collision */
#define LE_MODE_DTCR 0x0008 /* disable transmit CRC */
#define LE_MODE_LOOP 0x0004 /* loopback mode */
#define LE_MODE_DTX 0x0002 /* disable transmitter */
#define LE_MODE_DRX 0x0001 /* disable receiver */
#define LE_MODE_NORMAL 0 /* none of the above */
/* Receive message descriptor 1 (rmd1_bits) */
#define LE_R1_OWN 0x80 /* LANCE owns the packet */
#define LE_R1_ERR 0x40 /* error summary */
#define LE_R1_FRAM 0x20 /* framing error */
#define LE_R1_OFLO 0x10 /* overflow error */
#define LE_R1_CRC 0x08 /* CRC error */
#define LE_R1_BUFF 0x04 /* buffer error */
#define LE_R1_STP 0x02 /* start of packet */
#define LE_R1_ENP 0x01 /* end of packet */
#define LE_R1_BITS \
"\20\10OWN\7ERR\6FRAM\5OFLO\4CRC\3BUFF\2STP\1ENP"
/* Transmit message descriptor 1 (tmd1_bits) */
#define LE_T1_OWN 0x80 /* LANCE owns the packet */
#define LE_T1_ERR 0x40 /* error summary */
#define LE_T1_MORE 0x10 /* multiple collisions */
#define LE_T1_ONE 0x08 /* single collision */
#define LE_T1_DEF 0x04 /* defferred transmit */
#define LE_T1_STP 0x02 /* start of packet */
#define LE_T1_ENP 0x01 /* end of packet */
#define LE_T1_BITS \
"\20\10OWN\7ERR\6RES\5MORE\4ONE\3DEF\2STP\1ENP"
/* Transmit message descriptor 3 (tmd3) */
#define LE_T3_BUFF 0x8000 /* buffer error */
#define LE_T3_UFLO 0x4000 /* underflow error */
#define LE_T3_LCOL 0x1000 /* late collision */
#define LE_T3_LCAR 0x0800 /* loss of carrier */
#define LE_T3_RTRY 0x0400 /* retry error */
#define LE_T3_TDR_MASK 0x03ff /* time domain reflectometry counter */
#define LE_XMD2_ONES 0xf000
#define LE_T3_BITS \
"\20\20BUFF\17UFLO\16RES\15LCOL\14LCAR\13RTRY"
#define LE_ADDR_LOW_MASK (0xffff)
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