94 lines
4.2 KiB
C
94 lines
4.2 KiB
C
/* $NetBSD: enreg.h,v 1.1.1.1 1998/06/09 07:53:05 dbj Exp $ */
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/*
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* Copyright (c) 1997 Rolf Grossmann
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Rolf Grossmann.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Ethernet chip description
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*/
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struct en_regs {
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unsigned char txstat; /* 0 */
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unsigned char txmask; /* 1 */
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unsigned char rxstat; /* 2 */
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unsigned char rxmask; /* 3 */
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unsigned char txmode; /* 4 */
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unsigned char rxmode; /* 5 */
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unsigned char reset; /* 6 */
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char pad;
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unsigned char addr[6]; /* 8 to d - "physical" network address */
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};
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#define EN_TXS_READY 0x80 /* ready for packet */
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#define EN_TXS_BUSY 0x40 /* receive carrier detect */
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#define EN_TXS_TXRECV 0x20 /* transmission received */
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#define EN_TXS_SHORTED 0x10 /* possible coax short */
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#define EN_TXS_UNDERFLOW 0x08 /* underflow on xmit */
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#define EN_TXS_COLLERR 0x04 /* collision detected */
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#define EN_TXS_COLLERR16 0x02 /* 16th collision error */
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#define EN_TXS_PARERR 0x01 /* parity error in tx data */
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#define EN_TXM_READYIE 0x80 /* tx int on packet ready */
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#define EN_TXM_TXRXIE 0x20 /* tx int on transmit rec'd */
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#define EN_TXM_UNDERFLOWIE 0x08 /* tx int on underflow */
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#define EN_TXM_COLLIE 0x04 /* tx int on collision */
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#define EN_TXM_COLL16IE 0x02 /* tx int on 16th collision */
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#define EN_TXM_PARERRIE 0x01 /* tx int on parity error */
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/* same bits for rxstat and rxmask */
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#define EN_RX_OK 0x80 /* packet received ok */
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#define EN_RX_RESET 0x10 /* reset packet received */
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#define EN_RX_SHORT 0x08 /* < minimum length */
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#define EN_RX_ALIGNERR 0x04 /* alignment error */
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#define EN_RX_CRCERR 0x02 /* CRC error */
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#define EN_RX_OVERFLOW 0x01 /* receiver FIFO overflow */
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#define EN_TMD_COLLMASK 0xf0 /* collision count */
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#define EN_TMD_COLLSHIFT 4
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#define EN_TMD_PARIGNORE 0x08 /* ignore parity */
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#define EN_TMD_LB_DISABLE 0x02 /* loop back disabled */
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#define EN_TMD_DISCONTENT 0x01 /* disable contention (rx carrier) */
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#define EN_RMD_TEST 0x80 /* must be zero */
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#define EN_RMD_ADDRSIZE 0x10 /* reduces NODE match to 5 chars */
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#define EN_RMD_SHORTENABLE 0x08 /* "rx packets >= 10 bytes" - <? */
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#define EN_RMD_RESETENABLE 0x04 /* dunno, treat as MBZ */
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#define EN_RMD_WHATRECV 0x03 /* controls what packets are received */
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#define EN_RMD_RECV_PROMISC 0x03 /* all packets */
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#define EN_RMD_RECV_MULTI 0x02 /* accept broad/multicasts */
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#define EN_RMD_RECV_NORMAL 0x01 /* accept broad/limited multicasts */
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#define EN_RMD_RECV_NONE 0x00 /* accept no packets */
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#define EN_RST_RESET 0x80 /* reset interface */
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#define ENRX_EOP 0x80000000 /* end-of-packet flag */
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#define ENRX_BOP 0x40000000 /* beginning-of-packet flag */
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#define ENTX_EOP 0x80000000 /* end-of-packet flag */
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