4.3BSD-Reno/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