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rdvar.h revision 1.20 
      1 /*	$NetBSD: rdvar.h,v 1.20 2011/02/08 20:20:13 rmind 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. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: Utah $Hdr: rdvar.h 1.1 92/12/21$
     37  *
     38  *	@(#)rdvar.h	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #include <sys/callout.h>
     42 
     43 struct	rdidentinfo {
     44 	short	ri_hwid;		/* 2 byte HW id */
     45 	short	ri_maxunum;		/* maximum allowed unit number */
     46 	const char *ri_desc;		/* drive type description */
     47 	int	ri_nbpt;		/* DEV_BSIZE blocks per track */
     48 	int	ri_ntpc;		/* tracks per cylinder */
     49 	int	ri_ncyl;		/* cylinders per unit */
     50 	int	ri_nblocks;		/* DEV_BSIZE blocks on disk */
     51 };
     52 
     53 struct rdstats {
     54 	long	rdretries;
     55 	long	rdresets;
     56 	long	rdtimeouts;
     57 	long	rdpolltries;
     58 	long	rdpollwaits;
     59 };
     60 
     61 struct	rd_softc {
     62 	device_t sc_dev;
     63 	struct	disk sc_dkdev;
     64 	struct	callout sc_restart_ch;
     65 	int	sc_slave;		/* HP-IB slave */
     66 	int	sc_punit;		/* physical unit on slave */
     67 	int	sc_flags;
     68 	short	sc_type;
     69 	char	*sc_addr;
     70 	int	sc_resid;
     71 	struct	rd_describe sc_rddesc;
     72 	struct	hpibqueue sc_hq;	/* hpib job queue entry */
     73 	struct	rd_iocmd sc_ioc;
     74 	struct	rd_rscmd sc_rsc;
     75 	struct	rd_stat sc_stat;
     76 	struct	rd_ssmcmd sc_ssmc;
     77 	struct	rd_srcmd sc_src;
     78 	struct	rd_clearcmd sc_clear;
     79 	struct	bufq_state *sc_tab;
     80 	int	sc_active;
     81 	int	sc_errcnt;
     82 	struct	rdstats sc_stats;
     83 #if NRND > 0
     84 	rndsource_element_t rnd_source;
     85 #endif
     86 };
     87 
     88 /* sc_flags values */
     89 #define	RDF_ALIVE	0x01
     90 #define	RDF_SEEK	0x02
     91 #define RDF_SWAIT	0x04
     92 #define RDF_OPENING	0x08
     93 #define RDF_CLOSING	0x10
     94 #define RDF_WANTED	0x20
     95 #define RDF_WLABEL	0x40
     96 
     97 #define	rdunit(x)	((int)(minor(x) >> 3))
     98 #define rdpart(x)	((int)(minor(x) & 0x7))
     99 #define	rdpunit(x)	((x) & 7)
    100 #define rdlabdev(d)	(dev_t)(((int)(d)&~7)|2)	/* rd?c */
    101 
    102 #define	RDRETRY		5
    103 #define RDWAITC		1	/* min time for timeout in seconds */
    104