/*      $NetBSD: rdvar.h,v 1.27 2022/11/23 18:55:06 tsutsui Exp $       */

/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990, 1993
*      The Regents of the University of California.  All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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. 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 BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* from: Utah $Hdr: rdvar.h 1.1 92/12/21$
*
*      @(#)rdvar.h     8.1 (Berkeley) 6/10/93
*/

#include <sys/callout.h>
#include <sys/rndsource.h>

struct  rdidentinfo {
       uint16_t ri_hwid;               /* 2 byte HW id */
       const char *ri_desc;            /* drive type description */
       int     ri_nbpt;                /* DEV_BSIZE blocks per track */
       int     ri_ntpc;                /* tracks per cylinder */
       int     ri_ncyl;                /* cylinders per unit */
       int     ri_nblocks;             /* DEV_BSIZE blocks on disk */
};

struct rdstats {
       long    rdretries;
       long    rdresets;
       long    rdtimeouts;
       long    rdpolltries;
       long    rdpollwaits;
};

struct  rd_softc {
       device_t sc_dev;
       struct  disk sc_dkdev;
       struct  callout sc_restart_ch;
       int     sc_slave;               /* HP-IB slave */
       int     sc_punit;               /* physical unit on slave */
       int     sc_flags;
       short   sc_type;
       char    *sc_addr;
       int     sc_resid;
       struct  hpibqueue sc_hq;        /* hpib job queue entry */
       struct  rd_iocmd sc_ioc;
       struct  rd_rscmd sc_rsc;
       struct  rd_stat sc_stat;
       struct  bufq_state *sc_tab;
       int     sc_active;
       int     sc_errcnt;
       struct  rdstats sc_stats;
       krndsource_t rnd_source;
};

/* sc_flags values */
#define RDF_ALIVE       0x01
#define RDF_SEEK        0x02
#define RDF_SWAIT       0x04
#define RDF_OPENING     0x08
#define RDF_CLOSING     0x10
#define RDF_WANTED      0x20
#define RDF_WLABEL      0x40

#define rdunit(x)       ((int)(minor(x) >> 3))
#define rdpart(x)       ((int)(minor(x) & 0x7))
#define rdpunit(x)      ((x) & 7)
#define rdlabdev(d)     (dev_t)(((int)(d)&~7)|2)        /* rd?c */

#define RDRETRY         5
#define RDWAITC         1       /* min time for timeout in seconds */