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/* $NetBSD: if_aereg.h,v 1.2 1995/08/18 15:53:32 chopps Exp $ */
/*
* Copyright (c) 1995 Bernd Ernesti and Klaus Burkert. All rights reserved.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell and Rick Macklem.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bernd Ernesti, by Klaus
* Burkert, by Michael van Elst, and by the University of California,
* Berkeley and its contributors.
* 4. 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 8.1 (Berkeley) 6/10/93
*
* This is based on the original LANCE files, as the PCnet-ISA used on
* the Ariadne is a LANCE-descendant optimized for the PC-ISA bus.
* This causes some modifications, all data that is to go into registers
* or to structures (buffer-descriptors, init-block) has to be
* byte-swapped. In addition ALL write accesses to the board have to be
* WORD or LONG, BYTE-access is prohibited!!
*/
#define ETHER_MAX_LEN 1518
#define ETHER_MIN_LEN 64
#define AERBUF 16 /* 16 receive buffers */
#define AERBUFLOG2 4
#define AETBUF 4 /* 4 transmit buffers */
#define AETBUFLOG2 2
#define AE_RLEN (AERBUFLOG2 << 13)
#define AE_TLEN (AETBUFLOG2 << 13)
/*
* PCnet-ISA registers.
*/
struct aereg1 {
u_int16_t aer1_rdp; /* data port */
u_int16_t aer1_rap; /* register select port */
u_int16_t aer1_reset; /* reading this resets the PCnet-ISA */
u_int16_t aer1_idp; /* isa configuration port */
};
struct aereg2 {
/* init block */
u_int16_t aer2_mode; /* +0x0000 */
u_int16_t aer2_padr[3]; /* +0x0002 */
u_int16_t aer2_ladrf[4]; /* +0x0008 */
u_int16_t aer2_rdra; /* +0x0010 */
u_int16_t aer2_rlen; /* +0x0012 */
u_int16_t aer2_tdra; /* +0x0014 */
u_int16_t aer2_tlen; /* +0x0016 */
/* receive message descriptors */
struct aermd { /* +0x0018 */
u_int16_t rmd0;
u_int16_t rmd1;
int16_t rmd2;
u_int16_t rmd3;
} aer2_rmd[AERBUF];
/* transmit message descriptors */
struct aetmd { /* +0x0058 */
u_int16_t tmd0;
u_int16_t tmd1;
int16_t tmd2;
u_int16_t tmd3;
} aer2_tmd[AETBUF];
char aer2_rbuf[AERBUF][ETHER_MAX_LEN]; /* +0x0060 */
char aer2_tbuf[AETBUF][ETHER_MAX_LEN]; /* +0x2FD0 */
};
/*
* Control and status bits -- aereg1
*/
#define AE_CSR0 0x0000 /* Control and status register */
#define AE_CSR1 0x0100 /* low address of init block */
#define AE_CSR2 0x0200 /* high address of init block */
#define AE_CSR3 0x0300 /* Bus master and control */
/* Control and status register 0 (csr0) */
#define AE_SERR 0x0080 /* error summary */
#define AE_BABL 0x0040 /* transmitter timeout error */
#define AE_CERR 0x0020 /* collision */
#define AE_MISS 0x0010 /* missed a packet */
#define AE_MERR 0x0008 /* memory error */
#define AE_RINT 0x0004 /* receiver interrupt */
#define AE_TINT 0x0002 /* transmitter interrupt */
#define AE_IDON 0x0001 /* initalization done */
#define AE_INTR 0x8000 /* interrupt condition */
#define AE_INEA 0x4000 /* interrupt enable */
#define AE_RXON 0x2000 /* receiver on */
#define AE_TXON 0x1000 /* transmitter on */
#define AE_TDMD 0x0800 /* transmit demand */
#define AE_STOP 0x0400 /* disable all external activity */
#define AE_STRT 0x0200 /* enable external activity */
#define AE_INIT 0x0100 /* begin initalization */
#define AE_PROM 0x0080 /* promiscuous mode */
#define AE_MODE 0x0000
/*
* Control and status bits -- aereg2
*/
#define AE_OWN 0x0080 /* LANCE owns the packet */
#define AE_ERR 0x0040 /* error summary */
#define AE_STP 0x0002 /* start of packet */
#define AE_ENP 0x0001 /* end of packet */
#define AE_MORE 0x0010 /* multiple collisions */
#define AE_ONE 0x0008 /* single collision */
#define AE_DEF 0x0004 /* defferred transmit */
#define AE_FRAM 0x0020 /* framing error */
#define AE_OFLO 0x0010 /* overflow error */
#define AE_CRC 0x0008 /* CRC error */
#define AE_RBUFF 0x0004 /* buffer error */
/* Transmit message descriptor 3 (tmd3) */
#define AE_TBUFF 0x0080 /* buffer error */
#define AE_UFLO 0x0040 /* underflow error */
#define AE_LCOL 0x0010 /* late collision */
#define AE_LCAR 0x0008 /* loss of carrier */
#define AE_RTRY 0x0004 /* retry error */
#define AE_TDR_MASK 0xff03 /* time domain reflectometry counter */
#define SWAP(x) (((x & 0xff) << 8 ) | (( x >> 8) & 0xff))
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