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rdvar.h revision 1.7 
      1 /*	$NetBSD: rdvar.h,v 1.7 1997/03/31 07:40:02 scottr Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1982, 1990, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  * from: Utah $Hdr: rdvar.h 1.1 92/12/21$
     41  *
     42  *	@(#)rdvar.h	8.1 (Berkeley) 6/10/93
     43  */
     44 
     45 struct	rdidentinfo {
     46 	short	ri_hwid;		/* 2 byte HW id */
     47 	short	ri_maxunum;		/* maximum allowed unit number */
     48 	char	*ri_desc;		/* drive type description */
     49 	int	ri_nbpt;		/* DEV_BSIZE blocks per track */
     50 	int	ri_ntpc;		/* tracks per cylinder */
     51 	int	ri_ncyl;		/* cylinders per unit */
     52 	int	ri_nblocks;		/* DEV_BSIZE blocks on disk */
     53 };
     54 
     55 struct rdstats {
     56 	long	rdretries;
     57 	long	rdresets;
     58 	long	rdtimeouts;
     59 	long	rdpolltries;
     60 	long	rdpollwaits;
     61 };
     62 
     63 struct	rd_softc {
     64 	struct	device sc_dev;
     65 	struct	disk sc_dkdev;
     66 	int	sc_slave;		/* HP-IB slave */
     67 	int	sc_punit;		/* physical unit on slave */
     68 	int	sc_flags;
     69 	short	sc_type;
     70 	char	*sc_addr;
     71 	int	sc_resid;
     72 	struct	rd_describe sc_rddesc;
     73 	struct	hpibqueue sc_hq;	/* hpib job queue entry */
     74 	struct	rd_iocmd sc_ioc;
     75 	struct	rd_rscmd sc_rsc;
     76 	struct	rd_stat sc_stat;
     77 	struct	rd_ssmcmd sc_ssmc;
     78 	struct	rd_srcmd sc_src;
     79 	struct	rd_clearcmd sc_clear;
     80 	struct	buf sc_tab;		/* buffer queue */
     81 	struct	rdstats sc_stats;
     82 };
     83 
     84 /* sc_flags values */
     85 #define	RDF_ALIVE	0x01
     86 #define	RDF_SEEK	0x02
     87 #define RDF_SWAIT	0x04
     88 #define RDF_OPENING	0x08
     89 #define RDF_CLOSING	0x10
     90 #define RDF_WANTED	0x20
     91 #define RDF_WLABEL	0x40
     92 
     93 #define	rdunit(x)	(minor(x) >> 3)
     94 #define rdpart(x)	(minor(x) & 0x7)
     95 #define	rdpunit(x)	((x) & 7)
     96 #define rdlabdev(d)	(dev_t)(((int)(d)&~7)|2)	/* rd?c */
     97 
     98 #define	b_cylin		b_resid
     99 
    100 #define	RDRETRY		5
    101 #define RDWAITC		1	/* min time for timeout in seconds */
    102 
    103 #ifdef _KERNEL
    104 extern	struct rdidentinfo rdidentinfo[];
    105 
    106 /* rd_subr.c */
    107 void	rdmakedisklabel __P((int, struct disklabel *));
    108 #endif
    109