sys/dev/scsipi/sdvar.h

   1 /*      $NetBSD: sdvar.h,v 1.31 2008/07/16 18:54:09 drochner Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Charles M. Hannum.
   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * Originally written by Julian Elischer (julian@dialix.oz.au)
  34  * for TRW Financial Systems for use under the MACH(2.5) operating system.
  35  *
  36  * TRW Financial Systems, in accordance with their agreement with Carnegie
  37  * Mellon University, makes this software available to CMU to distribute
  38  * or use in any manner that they see fit as long as this message is kept with
  39  * the software. For this reason TFS also grants any other persons or
  40  * organisations permission to use or modify this software.
  41  *
  42  * TFS supplies this software to be publicly redistributed
  43  * on the understanding that TFS is not responsible for the correct
  44  * functioning of this software in any circumstances.
  45  *
  46  * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992
  47  */
  48
  49 #ifndef _DEV_SCSIPI_SDVAR_H_
  50 #define _DEV_SCSIPI_SDVAR_H_
  51
  52 #include "opt_scsi.h"
  53 #include "rnd.h"
  54 #if NRND > 0
  55 #include <sys/rnd.h>
  56 #endif
  57
  58 #ifndef SDRETRIES
  59 #define SDRETRIES       4
  60 #endif
  61
  62 #ifndef SD_IO_TIMEOUT
  63 #define SD_IO_TIMEOUT   (60 * 1000)
  64 #endif
  65
  66 struct sd_softc {
  67         device_t sc_dev;
  68         struct disk sc_dk;
  69
  70         int flags;
  71 #define SDF_WLABEL      0x04            /* label is writable */
  72 #define SDF_LABELLING   0x08            /* writing label */
  73 #define SDF_ANCIENT     0x10            /* disk is ancient; for minphys */
  74 #define SDF_DIRTY       0x20            /* disk is dirty; needs cache flush */
  75 #define SDF_FLUSHING    0x40            /* flushing, for sddone() */
  76
  77         struct scsipi_periph *sc_periph;/* contains our targ, lun, etc. */
  78
  79         struct disk_parms {
  80                 u_long  heads;          /* number of heads */
  81                 u_long  cyls;           /* number of cylinders */
  82                 u_long  sectors;        /* number of sectors/track */
  83                 u_long  blksize;        /* number of bytes/sector */
  84                 u_long  rot_rate;       /* rotational rate, in RPM */
  85                 u_int64_t disksize;     /* total number sectors */
  86                 u_int64_t disksize512;  /* total number sectors */
  87         } params;
  88
  89         struct bufq_state *buf_queue;
  90         callout_t sc_callout;
  91         u_int8_t type;
  92         char name[16]; /* product name, for default disklabel */
  93
  94 #if NRND > 0
  95         rndsource_element_t rnd_source;
  96 #endif
  97 };
  98
  99 #define SDGP_RESULT_OK          0       /* parameters obtained */
 100 #define SDGP_RESULT_OFFLINE     1       /* no media, or otherwise losing */
 101 #define SDGP_RESULT_UNFORMATTED 2       /* unformatted media (max params) */
 102
 103 #endif /* _DEV_SCSIPI_SDVAR_H_ */