sys/arch/next68k/dev/enreg.h

   1 /*      $NetBSD: enreg.h,v 1.1.1.1 1998/06/09 07:53:05 dbj 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