FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/if_egreg.h

     /*
      * Copyright (c) 1993 Dean Huxley (dean@fsa.ca)
      * All rights reserved.
      *
      * 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 Dean Huxley.
     * 4. The name of Dean Huxley may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
     */
    
    /*
     * Register offsets from base.
     */
    #define EG_COMMAND      0x00
    #define EG_STATUS       0x02
    #define EG_DATA         0x04
    #define EG_CONTROL      0x06
    
    /*
     * Host Control Register bits
     * EG_CTL_ATTN - does a soft reset
     * EG_CTL_FLSH - flushes the data register
     * EG_CTL_RESET - does a hard reset
     * EG_CTL_DMAE - Used with DIR bit, enables DMA transfers to/from data reg.
     * EG_CTL_DIR  - if clear then host -> adapter, if set then adapter -> host
     * EG_CTL_TCEN - terminal count enable. enables host interrupt after DMA.
     * EG_CTL_CMDE - command reg interrupt enable. (when it is written)
     * EG_CTL_HSF1 - Host status flag 1
     * EG_CTL_HSF2 - Host status flag 2
     */
    
    #define EG_CTL_ATTN 0x80
    #define EG_CTL_FLSH 0x40
    #define EG_CTL_RESET (EG_CTL_ATTN|EG_CTL_FLSH)
    #define EG_CTL_DMAE 0x20
    #define EG_CTL_DIR  0x10
    #define EG_CTL_TCEN 0x08
    #define EG_CTL_CMDE 0x04
    #define EG_CTL_HSF2 0x02
    #define EG_CTL_HSF1 0x01
    
    /*
     * Host Status Register bits
     * EG_STAT_HRDY - Data Register ready 
     * EG_STAT_HCRE - Host Command Register empty
     * EG_STAT_ACRF - Adapter Command register full
     * EG_STAT_DIR  - Direction flag, 0 = host -> adapter, 1 = adapter -> host
     * EG_STAT_DONE - DMA done
     * EG_STAT_ASF1 - Adapter status flag 1
     * EG_STAT_ASF2 - Adapter status flag 2
     * EG_STAT_ASF3 - Adapter status flag 3
     */
    
    #define EG_STAT_HRDY 0x80
    #define EG_STAT_HCRE 0x40
    #define EG_STAT_ACRF 0x20
    #define EG_STAT_DIR  0x10
    #define EG_STAT_DONE 0x08
    #define EG_STAT_ASF3 0x04
    #define EG_STAT_ASF2 0x02
    #define EG_STAT_ASF1 0x01
    
    #define EG_PCB_NULL     0x00
    #define EG_PCB_ACCEPT   0x01 
    #define EG_PCB_REJECT   0x02
    #define EG_PCB_DONE     0x03
    #define EG_PCB_STAT     0x03
    
    #define EG_CMD_CONFIG82586      0x02
    #define EG_CMD_GETEADDR         0x03
    #define EG_CMD_RECVPACKET       0x08
    #define EG_CMD_SENDPACKET       0x09
    #define EG_CMD_GETSTATS         0x0a
    #define EG_CMD_SETEADDR         0x10
    #define EG_CMD_GETINFO          0x11
    
    #define EG_RSP_CONFIG82586      0x32
    #define EG_RSP_GETEADDR         0x33
    #define EG_RSP_RECVPACKET       0x38
   #define EG_RSP_SENDPACKET       0x39
   #define EG_RSP_GETSTATS         0x3a
   #define EG_RSP_SETEADDR         0x40
   #define EG_RSP_GETINFO          0x41

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