/*      $NetBSD: hpreg.h,v 1.6 2017/05/22 17:13:09 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.
*
* 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.
*/

#ifdef notdef
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];
};
#endif

#define HP_CS1  0
#define HP_DS   4
#define HP_ER1  8
#define HP_MR1  12
#define HP_AS   16
#define HP_DA   20
#define HP_DT   24
#define HP_LA   28
#define HP_SN   32
#define HP_OF   36
#define HP_DC   40
#define HP_HR   44
#define HP_MR2  48
#define HP_ER2  52
#define HP_EC1  56
#define HP_EC2  60

#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 */