amiga.h

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/*
    util.h -- amiga partition table headers.
    Copyright (C) 1998-2000, 2007, 2009-2014, 2019-2023 Free Software
    Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
 
struct PartitionBlock {
    uint32_t    pb_ID;                  /* Identifier 32 bit word : 'PART' */
    uint32_t    pb_SummedLongs;         /* Size of the structure for checksums */
    int32_t     pb_ChkSum;              /* Checksum of the structure */
    uint32_t    pb_HostID;              /* SCSI Target ID of host, not really used */
    uint32_t    pb_Next;                /* Block number of the next PartitionBlock */
    uint32_t    pb_Flags;               /* Part Flags (NOMOUNT and BOOTABLE) */
    uint32_t    pb_Reserved1[2];
    uint32_t    pb_DevFlags;            /* Preferred flags for OpenDevice */
    uint8_t     pb_DriveName[32];       /* Preferred DOS device name: BSTR form */
    uint32_t    pb_Reserved2[15];
    uint32_t    de_TableSize;           /* Size of Environment vector */
    uint32_t    de_SizeBlock;           /* Size of the blocks in 32 bit words, usually 128 */
    uint32_t    de_SecOrg;              /* Not used; must be 0 */
    uint32_t    de_Surfaces;            /* Number of heads (surfaces) */
    uint32_t    de_SectorPerBlock;      /* Disk sectors per block, used with SizeBlock, usually 1 */
    uint32_t    de_BlocksPerTrack;      /* Blocks per track. drive specific */
    uint32_t    de_Reserved;            /* DOS reserved blocks at start of partition. */
    uint32_t    de_PreAlloc;            /* DOS reserved blocks at end of partition */
    uint32_t    de_Interleave;          /* Not used, usually 0 */
    uint32_t    de_LowCyl;              /* First cylinder of the partition */
    uint32_t    de_HighCyl;             /* Last cylinder of the partition */
    uint32_t    de_NumBuffers;          /* Initial # DOS of buffers.  */
    uint32_t    de_BufMemType;          /* Type of mem to allocate for buffers */
    uint32_t    de_MaxTransfer;         /* Max number of bytes to transfer at a time */
    uint32_t    de_Mask;                /* Address Mask to block out certain memory */
    int32_t     de_BootPri;             /* Boot priority for autoboot */
    uint32_t    de_DosType;             /* Dostype of the file system */
    uint32_t    de_Baud;                /* Baud rate for serial handler */
    uint32_t    de_Control;             /* Control word for handler/filesystem */
    uint32_t    de_BootBlocks;          /* Number of blocks containing boot code */
    uint32_t    pb_EReserved[12];
};
 
#define PART(pos) ((struct PartitionBlock *)(pos))
 
#define PBFB_BOOTABLE   0       /* this partition is intended to be bootable */
#define PBFF_BOOTABLE   1L      /*   (expected directories and files exist) */
#define PBFB_NOMOUNT    1       /* do not mount this partition (e.g. manually */
#define PBFF_NOMOUNT    2L      /*   mounted, but space reserved here) */
 
struct PartitionBlock * amiga_find_part (PedGeometry *geom, struct PartitionBlock *part);
 
struct AmigaIds {
        uint32_t ID;
        struct AmigaIds *next;
};
 
struct AmigaIds * _amiga_add_id (uint32_t id, struct AmigaIds *ids);
void _amiga_free_ids (struct AmigaIds *ids);
int _amiga_id_in_list (uint32_t id, struct AmigaIds *ids) _GL_ATTRIBUTE_PURE;