usr/src/sys/hpdev/fhpibreg.h

/*
 * Copyright (c) 1982, 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution is only permitted until one year after the first shipment
 * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
 * binary forms are permitted provided that: (1) source distributions retain
 * this entire copyright notice and comment, and (2) distributions including
 * binaries display the following acknowledgement:  This product includes
 * software developed by the University of California, Berkeley and its
 * contributors'' in the documentation or other materials provided with the
 * distribution and in all advertising materials mentioning features or use
 * of this software.  Neither the name of the University nor the names of
 * its contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *      @(#)fhpibreg.h  7.1 (Berkeley) 5/8/90
 */

#define vu_char volatile u_char

struct  fhpibdevice {
        u_char  hpib_pad0;
        vu_char hpib_cid;
        u_char  hpib_pad1;
#define hpib_ie         hpib_ids
        vu_char hpib_ids;
        u_char  hpib_pad2;
        vu_char hpib_ctrl2;
        u_char  hpib_pad3;
        vu_char hpib_latch;
        u_char  hpib_pad4[9];
        vu_char hpib_intr;
        u_char  hpib_pad5;
        vu_char hpib_imask;
        u_char  hpib_pad6;
        vu_char hpib_data;
        u_char  hpib_pad7;
        vu_char hpib_stat;
        u_char  hpib_pad8;
        vu_char hpib_cmd;
        u_char  hpib_pad9;
        vu_char hpib_ar;
        u_char  hpib_pad10;
        vu_char hpib_pmask;
        u_char  hpib_pad11;
        vu_char hpib_psense;
};

/* status bits */
#define ST_READ0        0xC0
#define ST_READ1        0x80
#define ST_IENAB        0x80
#define ST_EOI          0x80
#define ST_ATN          0x40
#define ST_WRITE        0x00

/* control bits */
#define CT_8BIT         0x80
#define CT_REN          0x20
#define CT_IFC          0x10
#define CT_FIFOSEL      0x02
#define CT_INITFIFO     0x01

#define IM_PABORT       0x40
#define IM_PPRESP       0x20
#define IM_ROOM         0x08
#define IM_BYTE         0x04
#define IM_IDLE         0x02

#define AR_ARONC        0x80