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rdvar.h revision 1.1 
      1 /*
      2  * Copyright (c) 1988 University of Utah.
      3  * Copyright (c) 1982, 1990, 1993
      4  *	The Regents of the University of California.  All rights reserved.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * the Systems Programming Group of the University of Utah Computer
      8  * Science Department.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  * from: Utah $Hdr: rdvar.h 1.1 92/12/21$
     39  *
     40  *	from: @(#)rdvar.h	8.1 (Berkeley) 6/10/93
     41  *	$Id: rdvar.h,v 1.1 1994/05/23 06:01:26 mycroft Exp $
     42  */
     43 
     44 struct	rdidentinfo {
     45 	short	ri_hwid;		/* 2 byte HW id */
     46 	short	ri_maxunum;		/* maximum allowed unit number */
     47 	char	*ri_desc;		/* drive type description */
     48 	int	ri_nblocks;		/* DEV_BSIZE blocks on disk */
     49 };
     50 
     51 struct	rdinfo {
     52 	struct	disklabel ri_label;	/* label */
     53 	int	ri_bopen;		/* mask of open block devs */
     54 	int	ri_copen;		/* mask of open char devs */
     55 	int	ri_open;		/* composite mask of open devs */
     56 };
     57 
     58 struct	rd_softc {
     59 	struct	hp_device *sc_hd;
     60 	int	sc_flags;
     61 	short	sc_type;
     62 	short	sc_punit;
     63 	char	*sc_addr;
     64 	int	sc_resid;
     65 	u_int	sc_wpms;
     66 	struct	rdinfo sc_info;
     67 	struct	devqueue sc_dq;
     68 	struct	rd_iocmd sc_ioc;
     69 	struct	rd_rscmd sc_rsc;
     70 	struct	rd_stat sc_stat;
     71 	struct	rd_ssmcmd sc_ssmc;
     72 	struct	rd_srcmd sc_src;
     73 	struct	rd_clearcmd sc_clear;
     74 };
     75 
     76 /* sc_flags values */
     77 #define	RDF_ALIVE	0x01
     78 #define	RDF_SEEK	0x02
     79 #define RDF_SWAIT	0x04
     80 #define RDF_OPENING	0x08
     81 #define RDF_CLOSING	0x10
     82 #define RDF_WANTED	0x20
     83 #define RDF_WLABEL	0x40
     84 
     85 struct rdstats {
     86 	long	rdretries;
     87 	long	rdresets;
     88 	long	rdtimeouts;
     89 	long	rdpolltries;
     90 	long	rdpollwaits;
     91 };
     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