sys/arch/atari/stand/ahdilabel/privahdi.h

   1 /*      $NetBSD: privahdi.h,v 1.2 2008/04/28 20:23:15 martin Exp $      */
   2
   3 /*
   4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Julian Coleman, Waldi Ravens and Leo Weppelman.
   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 #include <sys/param.h>
  33 #include <sys/disklabel.h>
  34 #include <machine/ahdilabel.h>
  35
  36 /* Flags for ahdi_readlabel() */
  37 #define FORCE_AHDI      0x01    /* Read AHDI label when NetBSD label exists */
  38 #define AHDI_IGN_EXISTS 0x02    /* Ignore partition exists flag (ICD tools) */
  39 #define AHDI_IGN_EXT    0x04    /* Ignore last extended parition (HDDriver) */
  40 #define AHDI_IGN_CKSUM  0x08    /* Ignore checksum mismatch on root sector */
  41 #define AHDI_IGN_SPU    0x10    /* Ignore total sectors mismatch */
  42
  43 /* Flags for ahdi_writelabel() */
  44 #define AHDI_KEEP_BOOT  0x01    /* Keep boot sector */
  45 #define AHDI_KEEP_BSL   0x02    /* Keep bad sector list */
  46 #define AHDI_KEEP_NBDA  0x04    /* Keep NetBSD label */
  47
  48 struct ptable_part {
  49         u_int8_t        flag;   /* partition flag */
  50         u_int8_t        id[3];  /* id: GEM, BGM, NBD, ... */
  51         u_int32_t       root;   /* root sector */
  52         u_int32_t       start;  /* start sector */
  53         u_int32_t       size;   /* size in sectors */
  54         int             letter; /* partition letter */
  55 };
  56
  57 struct ahdi_ptable {
  58         u_int32_t               nsectors;       /* number of sectors/track */
  59         u_int32_t               ntracks;        /* number of tracks/cylinder */
  60         u_int32_t               ncylinders;     /* number of cylinders */
  61         u_int32_t               secpercyl;      /* number of sectors/cylinder */
  62         u_int32_t               secperunit;     /* number of total sectors */
  63         int                     nparts;         /* number of partitions */
  64         struct ptable_part      parts[MAXPARTITIONS];
  65 };
  66
  67 int      ahdi_buildlabel(struct ahdi_ptable *);
  68 int      ahdi_checklabel(struct ahdi_ptable *);
  69 int      ahdi_readlabel(struct ahdi_ptable *, char *, int);
  70 int      ahdi_writedisktab(struct ahdi_ptable *, char *, char *, char *);
  71 int      ahdi_writelabel(struct ahdi_ptable *, char *, int);
  72
  73 extern int      ahdi_errp1, ahdi_errp2;
  74
  75 /* Internal functions */
  76 u_int16_t                ahdi_cksum(void *);
  77 void                     assign_letters(struct ahdi_ptable *);
  78 int                      check_magic(int, u_int, int);
  79 int                      dkcksum(struct disklabel *);
  80 void                    *disk_read(int, u_int, u_int);
  81 int                      disk_write(int, u_int, u_int, void *);
  82 int                      invalidate_netbsd_label(int, u_int32_t);
  83 int                      openraw(const char *, int);
  84 struct disklabel        *read_dl(int);
  85 int                      read_rsec(int, struct ahdi_ptable *, u_int,
  86                              u_int, int);
  87 int                      write_bsl(int);