sys/dev/scsipi/cdvar.h

   1 /*      $NetBSD: cdvar.h,v 1.28 2008/03/24 18:27:06 cube Exp $  */
   2
   3 /*
   4  * Copyright (c) 1997 Manuel Bouyer.  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  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #define CDRETRIES       4
  28
  29 struct cd_softc {
  30         device_t sc_dev;
  31         struct disk sc_dk;
  32         kmutex_t sc_lock;
  33
  34         int flags;
  35 #define CDF_WLABEL      0x04            /* label is writable */
  36 #define CDF_LABELLING   0x08            /* writing label */
  37 #define CDF_ANCIENT     0x10            /* disk is ancient; for minphys */
  38
  39         struct scsipi_periph *sc_periph;
  40
  41         struct cd_parms {
  42                 u_int blksize;
  43                 u_long disksize;        /* total number sectors */
  44                 u_long disksize512;     /* total number sectors */
  45         } params;
  46
  47         struct bufq_state *buf_queue;
  48         struct callout sc_callout;
  49
  50 #if NRND > 0
  51         rndsource_element_t     rnd_source;
  52 #endif
  53 };