141 lines
5.9 KiB
C
141 lines
5.9 KiB
C
/* $NetBSD: stvar.h,v 1.1 2001/05/04 07:48:57 bouyer Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Originally written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems for use under the MACH(2.5) operating system.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
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* major changes by Julian Elischer (julian@jules.dialix.oz.au) May 1993
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*
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* A lot of rewhacking done by mjacob (mjacob@nas.nasa.gov).
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*/
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#include "rnd.h"
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#if NRND > 0
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#include <sys/rnd.h>
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#endif
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsiconf.h>
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struct modes {
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u_int quirks; /* same definitions as in quirkdata */
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int blksize;
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u_int8_t density;
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};
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struct quirkdata {
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u_int quirks;
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#define ST_Q_FORCE_BLKSIZE 0x0001
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#define ST_Q_SENSE_HELP 0x0002 /* must do READ for good MODE SENSE */
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#define ST_Q_IGNORE_LOADS 0x0004
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#define ST_Q_BLKSIZE 0x0008 /* variable-block media_blksize > 0 */
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#define ST_Q_UNIMODAL 0x0010 /* unimode drive rejects mode select */
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#define ST_Q_NOPREVENT 0x0020 /* does not support PREVENT */
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#define ST_Q_ERASE_NOIMM 0x0040 /* drive rejects ERASE/w Immed bit */
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u_int page_0_size;
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#define MAX_PAGE_0_SIZE 64
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struct modes modes[4];
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};
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struct st_quirk_inquiry_pattern {
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struct scsipi_inquiry_pattern pattern;
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struct quirkdata quirkdata;
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};
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struct st_softc {
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struct device sc_dev;
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/*--------------------present operating parameters, flags etc.---------------*/
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int flags; /* see below */
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u_int quirks; /* quirks for the open mode */
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int blksize; /* blksize we are using */
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u_int8_t density; /* present density */
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u_int page_0_size; /* size of page 0 data */
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u_int last_dsty; /* last density opened */
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short mt_resid; /* last (short) resid */
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short mt_erreg; /* last error (sense key) seen */
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#define mt_key mt_erreg
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u_int8_t asc; /* last asc code seen */
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u_int8_t ascq; /* last asc code seen */
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/*--------------------device/scsi parameters---------------------------------*/
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struct scsipi_periph *sc_periph;/* our link to the adpter etc. */
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/*--------------------parameters reported by the device ---------------------*/
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int blkmin; /* min blk size */
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int blkmax; /* max blk size */
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struct quirkdata *quirkdata; /* if we have a rogue entry */
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/*--------------------parameters reported by the device for this media-------*/
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u_long numblks; /* nominal blocks capacity */
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int media_blksize; /* 0 if not ST_FIXEDBLOCKS */
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u_int8_t media_density; /* this is what it said when asked */
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/*--------------------quirks for the whole drive-----------------------------*/
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u_int drive_quirks; /* quirks of this drive */
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/*--------------------How we should set up when opening each minor device----*/
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struct modes modes[4]; /* plus more for each mode */
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u_int8_t modeflags[4]; /* flags for the modes */
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#define DENSITY_SET_BY_USER 0x01
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#define DENSITY_SET_BY_QUIRK 0x02
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#define BLKSIZE_SET_BY_USER 0x04
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#define BLKSIZE_SET_BY_QUIRK 0x08
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/*--------------------storage for sense data returned by the drive-----------*/
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u_char sense_data[MAX_PAGE_0_SIZE]; /*
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* additional sense data needed
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* for mode sense/select.
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*/
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struct buf_queue buf_queue; /* the queue of pending IO */
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/* operations */
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#if NRND > 0
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rndsource_element_t rnd_source;
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#endif
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};
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void stattach __P((struct device *, struct device *, void *));
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extern struct cfdriver st_cd;
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