/*	$OpenBSD: hpreg.h,v 1.4 1997/05/29 00:04:59 niklas Exp $ */
/*	$NetBSD: hpreg.h,v 1.4 1996/02/11 13:19:35 ragge Exp $ */
/*
 * Copyright (c) 1994 Ludd, University of Lule}, Sweden.
 * 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 at Ludd, University of Lule}.
 * 4. The name of the author 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.
 */

struct hp_regs {
        int     hp_cs1;
        int     hp_ds;
        int     hp_er1;
        int     hp_mr1;
        int     hp_as;
        int     hp_da;
        int     hp_dt;
        int     hp_la;
        int     hp_sn;
        int     hp_of;
        int     hp_dc;
        int     hp_hr;
        int     hp_mr2;
        int     hp_er2;
        int     hp_ec1;
        int     hp_ec2;
        int     utrymme[16];
};

#define	hp_drv	hp_regs

#define HPCS_DVA	4000	/* Drive avail, in dual-port config */
#define HPCS_WRITE	061	/* Write data */
#define HPCS_WCHECK	051	/* Write check data */
#define HPCS_WHEAD	063	/* Write header and data */
#define HPCS_WCHEAD	053	/* Write check header and data */
#define	HPCS_READ	071	/* Read data */
#define HPCS_RHEAD	073	/* Read header and data */
#define	HPCS_SEEK	005	/* Just seek */
#define HPCS_RECAL	007	/* Recalibrate */
#define HPCS_RTC	017	/* Return to centerline */
#define HPCS_OFFSET	015	/* Offset */
#define HPCS_SEARCH	031	/* Search */
#define HPCS_UNLOAD	003	/* Unload pack (removable) */
#define HPCS_RELEASE	013	/* Release massbuss port */
#define HPCS_RPS	021	/* Read-in preset */
#define	HPCS_PA		023	/* Pack acknowledge */
#define HPCS_DC		011	/* Drive clear */


#define HPDS_VV         0x40    /* Volume valid, not changed */
#define HPDS_DRY        0x80    /* Drive ready to accept commands */
#define HPDS_DPR        0x100   /* Drive present */
#define HPDS_PGM        0x200   /* Programmable in dual-port config */
#define HPDS_LBT        0x400   /* Last block transferred */
#define HPDS_WRL        0x800   /* Write locked media */
#define HPDS_MOL        0x1000  /* Medium on-line */
#define HPDS_PIP        0x2000  /* Positioning in progress */
#define HPDS_ERR        0x4000  /* ORed error bit, something wrong */
#define HPDS_ATA        0x8000  /* Attention drive */

#define HPDT_DRQ        0x800   /* Dual-port disk */

#define	HPOF_FMT	0x1000	/* 16/18 bit data */

/*
 * Error registers. The defines are the corresponding bit number
 * in the error register, instead of a bit mask.
 * Use (1<<HPER1_FOO) when touching registers.
 */
#define	HPER1_ILF	0	/* Illegal function */
#define HPER1_ILR	1	/* Illegal register */
#define HPER1_RMR	2	/* Register modification refused */
#define HPER1_PAR	3	/* Parity error */
#define HPER1_FER	4	/* Format error */
#define HPER1_WCF	5	/* Write clock failed */
#define HPER1_ECH	6	/* ECC hard error */
#define HPER1_HCE	7	/* Header compare error */
#define HPER1_HCRC	8	/* Header CRC error */
#define HPER1_AOE	9	/* Address overflow error */
#define	HPER1_IAE	10	/* Invalid address error */
#define HPER1_WLE	11	/* Write lock error */
#define HPER1_DTE	12	/* Drive timing error */
#define HPER1_OPI	13	/* Operation incomplete */
#define HPER1_UNS	14	/* Unsafe drive */
#define HPER1_DCK	15	/* Data check error */