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      1 /*	$NetBSD: if_egreg.h,v 1.5 2005/12/11 12:22:02 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1993 Dean Huxley (dean (at) fsa.ca)
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Dean Huxley.
     18  * 4. The name of Dean Huxley may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * Register offsets from base.
     35  */
     36 #define EG_COMMAND	0x00
     37 #define EG_STATUS	0x02
     38 #define EG_DATA		0x04
     39 #define EG_CONTROL	0x06
     40 
     41 /*
     42  * Host Control Register bits
     43  * EG_CTL_ATTN - does a soft reset
     44  * EG_CTL_FLSH - flushes the data register
     45  * EG_CTL_RESET - does a hard reset
     46  * EG_CTL_DMAE - Used with DIR bit, enables DMA transfers to/from data reg.
     47  * EG_CTL_DIR  - if clear then host -> adapter, if set then adapter -> host
     48  * EG_CTL_TCEN - terminal count enable. enables host interrupt after DMA.
     49  * EG_CTL_CMDE - command reg interrupt enable. (when it is written)
     50  * EG_CTL_HSF1 - Host status flag 1
     51  * EG_CTL_HSF2 - Host status flag 2
     52  */
     53 
     54 #define EG_CTL_ATTN 0x80
     55 #define EG_CTL_FLSH 0x40
     56 #define EG_CTL_RESET (EG_CTL_ATTN|EG_CTL_FLSH)
     57 #define EG_CTL_DMAE 0x20
     58 #define EG_CTL_DIR  0x10
     59 #define EG_CTL_TCEN 0x08
     60 #define EG_CTL_CMDE 0x04
     61 #define EG_CTL_HSF2 0x02
     62 #define EG_CTL_HSF1 0x01
     63 
     64 /*
     65  * Host Status Register bits
     66  * EG_STAT_HRDY - Data Register ready
     67  * EG_STAT_HCRE - Host Command Register empty
     68  * EG_STAT_ACRF - Adapter Command register full
     69  * EG_STAT_DIR  - Direction flag, 0 = host -> adapter, 1 = adapter -> host
     70  * EG_STAT_DONE - DMA done
     71  * EG_STAT_ASF1 - Adapter status flag 1
     72  * EG_STAT_ASF2 - Adapter status flag 2
     73  * EG_STAT_ASF3 - Adapter status flag 3
     74  */
     75 
     76 #define EG_STAT_HRDY 0x80
     77 #define EG_STAT_HCRE 0x40
     78 #define EG_STAT_ACRF 0x20
     79 #define EG_STAT_DIR  0x10
     80 #define EG_STAT_DONE 0x08
     81 #define EG_STAT_ASF3 0x04
     82 #define EG_STAT_ASF2 0x02
     83 #define EG_STAT_ASF1 0x01
     84 
     85 #define	EG_PCB_NULL	0x00
     86 #define EG_PCB_ACCEPT	0x01
     87 #define EG_PCB_REJECT	0x02
     88 #define EG_PCB_DONE	0x03
     89 #define EG_PCB_STAT	0x03
     90 
     91 #define EG_CMD_CONFIG82586	0x02
     92 #define EG_CMD_GETEADDR		0x03
     93 #define EG_CMD_RECVPACKET	0x08
     94 #define EG_CMD_SENDPACKET	0x09
     95 #define EG_CMD_GETSTATS		0x0a
     96 #define EG_CMD_SETEADDR		0x10
     97 #define EG_CMD_GETINFO		0x11
     98 
     99 #define EG_RSP_CONFIG82586	0x32
    100 #define EG_RSP_GETEADDR		0x33
    101 #define EG_RSP_RECVPACKET	0x38
    102 #define EG_RSP_SENDPACKET	0x39
    103 #define EG_RSP_GETSTATS		0x3a
    104 #define EG_RSP_SETEADDR		0x40
    105 #define EG_RSP_GETINFO		0x41
    106