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sdvar.h revision 1.2 
      1 /*	$NetBSD: sdvar.h,v 1.2 1998/02/13 04:19:35 enami Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994, 1995, 1997 Charles M. Hannum.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Charles M. Hannum.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _DEV_SCSIPI_SDVAR_H_
     33 #define _DEV_SCSIPI_SDVAR_H_
     34 
     35 /*
     36  * Originally written by Julian Elischer (julian (at) dialix.oz.au)
     37  * for TRW Financial Systems for use under the MACH(2.5) operating system.
     38  *
     39  * TRW Financial Systems, in accordance with their agreement with Carnegie
     40  * Mellon University, makes this software available to CMU to distribute
     41  * or use in any manner that they see fit as long as this message is kept with
     42  * the software. For this reason TFS also grants any other persons or
     43  * organisations permission to use or modify this software.
     44  *
     45  * TFS supplies this software to be publicly redistributed
     46  * on the understanding that TFS is not responsible for the correct
     47  * functioning of this software in any circumstances.
     48  *
     49  * Ported to run under 386BSD by Julian Elischer (julian (at) dialix.oz.au) Sept 1992
     50  */
     51 
     52 #define	SDRETRIES	4
     53 
     54 struct sd_ops;
     55 
     56 struct sd_softc {
     57 	struct device sc_dev;
     58 	struct disk sc_dk;
     59 
     60 	int flags;
     61 #define	SDF_LOCKED	0x01
     62 #define	SDF_WANTED	0x02
     63 #define	SDF_WLABEL	0x04		/* label is writable */
     64 #define	SDF_LABELLING	0x08		/* writing label */
     65 #define	SDF_ANCIENT	0x10		/* disk is ancient; for minphys */
     66 	struct scsipi_link *sc_link;	/* contains our targ, lun, etc. */
     67 	struct disk_parms {
     68 		u_long	heads;		/* number of heads */
     69 		u_long	cyls;		/* number of cylinders */
     70 		u_long	sectors;	/* number of sectors/track */
     71 		u_long	blksize;	/* number of bytes/sector */
     72 		u_long	disksize;	/* total number sectors */
     73 		u_long	rot_rate;	/* rotational rate, in RPM */
     74 	} params;
     75 	struct buf buf_queue;
     76 	u_int8_t type;
     77 	const struct sd_ops *sc_ops;	/* our bus-dependent ops vector */
     78 
     79 #if NRND > 0
     80 	rndsource_element_t rnd_source;
     81 #endif
     82 };
     83 
     84 struct sd_ops {
     85 	int	(*sdo_get_parms) __P((struct sd_softc *, struct disk_parms *,
     86 		    int));
     87 };
     88 #define	SDGP_RESULT_OK		0	/* paramters obtained */
     89 #define	SDGP_RESULT_OFFLINE	1	/* no media, or otherwise losing */
     90 #define	SDGP_RESULT_UNFORMATTED	2	/* unformatted media (max params) */
     91 
     92 void sdattach __P((struct device *, struct sd_softc *, struct scsipi_link *,
     93     const struct sd_ops *));
     94 
     95 #endif /* _DEV_SCSIPI_SDVAR_H_ */
     96