src/libpart/libpart.h

   1 /*
   2  * <libpart.h>
   3  *
   4  * Open Hack'Ware BIOS partitions management definitions
   5  *
   6  * Copyright (c) 2004-2005 Jocelyn Mayer
   7  *
   8  *   This program is free software; you can redistribute it and/or
   9  *   modify it under the terms of the GNU General Public License V2
  10  *   as published by the Free Software Foundation
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #if !defined (__OHW_LIBPART_H__)
  23 #define __OHW_LIBPART_H__
  24
  25 /* LBA for IDE is 48 bits long.
  26  * For now, I'll use 32 bits to store bloc nr
  27  * and 32 bits to store offsets in blocs and will only handle LBA 28.
  28  * So, I'll be affected with the well known 128 GB disk barrier bug...
  29  */
  30
  31 struct part_t {
  32     bloc_device_t *bd;
  33     int partnum;
  34     uint32_t start;      /* Partition first bloc             */
  35     uint32_t size;       /* Partition size, in blocs         */
  36     uint32_t spb;
  37     uint32_t bps;
  38     uint32_t flags;
  39
  40     uint32_t bloc_size;  /* Bloc size (may be != bd->seclen) */
  41     /* XXX: broken: to be reworked */
  42     pos_t boot_start;    /* Boot program start bloc & offset */
  43     pos_t boot_size;     /* Boot program size                */
  44     uint32_t boot_load;  /* Boot program address load        */
  45     uint32_t boot_entry; /* Boot program entry point         */
  46
  47     unsigned char *name;
  48     inode_t *boot_file;
  49     fs_t *fs;
  50
  51     void *private;
  52
  53     part_t *next;
  54     part_t *bnext;
  55 };
  56
  57 int part_register (bloc_device_t *bd, part_t *partition,
  58                    const unsigned char *name, int partnum);
  59 void part_set_blocsize (bloc_device_t *bd, part_t *part, uint32_t blocsize);
  60 void part_private_set (part_t *part, void *private);
  61 void *part_private_get (part_t *part);
  62
  63 part_t *PREP_find_partition (bloc_device_t *bd);
  64 part_t *Apple_probe_partitions (bloc_device_t *bd);
  65 part_t *isofs_probe_partitions (bloc_device_t *bd);
  66
  67 #endif /* !defined (__OHW_LIBPART_H__) */