1 /* $NetBSD: enreg.h,v 1.2 2002/09/11 01:46:30 mycroft Exp $ */ 2 /* 3 * Copyright (c) 1997 Rolf Grossmann 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Rolf Grossmann. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Ethernet chip description 34 */ 35 36 struct en_regs { 37 unsigned char txstat; /* 0 */ 38 unsigned char txmask; /* 1 */ 39 unsigned char rxstat; /* 2 */ 40 unsigned char rxmask; /* 3 */ 41 unsigned char txmode; /* 4 */ 42 unsigned char rxmode; /* 5 */ 43 unsigned char reset; /* 6 */ 44 char pad; 45 unsigned char addr[6]; /* 8 to d - "physical" network address */ 46 }; 47 48 #define EN_TXS_READY 0x80 /* ready for packet */ 49 #define EN_TXS_BUSY 0x40 /* receive carrier detect */ 50 #define EN_TXS_TXRECV 0x20 /* transmission received */ 51 #define EN_TXS_SHORTED 0x10 /* possible coax short */ 52 #define EN_TXS_UNDERFLOW 0x08 /* underflow on xmit */ 53 #define EN_TXS_COLLERR 0x04 /* collision detected */ 54 #define EN_TXS_COLLERR16 0x02 /* 16th collision error */ 55 #define EN_TXS_PARERR 0x01 /* parity error in tx data */ 56 57 #define EN_TXM_READYIE 0x80 /* tx int on packet ready */ 58 #define EN_TXM_TXRXIE 0x20 /* tx int on transmit rec'd */ 59 #define EN_TXM_UNDERFLOWIE 0x08 /* tx int on underflow */ 60 #define EN_TXM_COLLIE 0x04 /* tx int on collision */ 61 #define EN_TXM_COLL16IE 0x02 /* tx int on 16th collision */ 62 #define EN_TXM_PARERRIE 0x01 /* tx int on parity error */ 63 64 /* same bits for rxstat and rxmask */ 65 #define EN_RX_OK 0x80 /* packet received ok */ 66 #define EN_RX_RESET 0x10 /* reset packet received */ 67 #define EN_RX_SHORT 0x08 /* < minimum length */ 68 #define EN_RX_ALIGNERR 0x04 /* alignment error */ 69 #define EN_RX_CRCERR 0x02 /* CRC error */ 70 #define EN_RX_OVERFLOW 0x01 /* receiver FIFO overflow */ 71 72 #define EN_TMD_COLLMASK 0xf0 /* collision count */ 73 #define EN_TMD_COLLSHIFT 4 74 #define EN_TMD_PARIGNORE 0x08 /* ignore parity */ 75 #define EN_TMD_TURBO1 0x04 76 #define EN_TMD_LB_DISABLE 0x02 /* loop back disabled */ 77 #define EN_TMD_DISCONTENT 0x01 /* disable contention (rx carrier) */ 78 79 #define EN_RMD_TEST 0x80 /* must be zero */ 80 #define EN_RMD_ADDRSIZE 0x10 /* reduces NODE match to 5 chars */ 81 #define EN_RMD_SHORTENABLE 0x08 /* "rx packets >= 10 bytes" - <? */ 82 #define EN_RMD_RESETENABLE 0x04 /* dunno, treat as MBZ */ 83 #define EN_RMD_WHATRECV 0x03 /* controls what packets are received */ 84 #define EN_RMD_RECV_PROMISC 0x03 /* all packets */ 85 #define EN_RMD_RECV_MULTI 0x02 /* accept broad/multicasts */ 86 #define EN_RMD_RECV_NORMAL 0x01 /* accept broad/limited multicasts */ 87 #define EN_RMD_RECV_NONE 0x00 /* accept no packets */ 88 89 #define EN_RST_RESET 0x80 /* reset interface */ 90 91 #define ENRX_EOP 0x80000000 /* end-of-packet flag */ 92 #define ENRX_BOP 0x40000000 /* beginning-of-packet flag */ 93 #define ENTX_EOP 0x80000000 /* end-of-packet flag */ 94 95