sys/dev/disk/nata/ata-disk.h

   1 /*-
   2  * Copyright (c) 1998 - 2006 Søren Schmidt <sos@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    without modification, immediately at the beginning of the file.
  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  * $FreeBSD: src/sys/dev/ata/ata-disk.h,v 1.51 2006/01/05 21:27:19 sos Exp $
  27  * $DragonFly: src/sys/dev/disk/nata/ata-disk.h,v 1.1 2006/12/04 14:40:37 tgen Exp $
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/bus.h>
  32 #include <sys/devicestat.h>
  33 #include <sys/disk.h>
  34
  35 /* structure describing an ATA disk */
  36 struct ad_softc {
  37     u_int64_t                   total_secs;     /* total # of sectors (LBA) */
  38     u_int8_t                    heads;
  39     u_int8_t                    sectors;
  40     u_int32_t                   transfersize;   /* size of each transfer */
  41     int                         num_tags;       /* number of tags supported */
  42     int                         flags;          /* drive flags */
  43 #define         AD_F_LABELLING          0x0001
  44 #define         AD_F_CHS_USED           0x0002
  45 #define         AD_F_32B_ENABLED        0x0004
  46 #define         AD_F_TAG_ENABLED        0x0008
  47 #define         AD_F_RAID_SUBDISK       0x0010
  48
  49     struct devstat              stats;          /* devstat entry */
  50     struct disk                 disk;           /* disklabel/slice stuff */
  51     cdev_t                      cdev;           /* device placeholder */
  52 };
  53
  54 extern devclass_t ad_devclass;
  55