153 lines
6.7 KiB
C
153 lines
6.7 KiB
C
#ifndef _amiga_rdb_h
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#define _amiga_rdb_h
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#define ULONG u_long
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#define LONG long
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#define UBYTE u_char
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/* definitions for the Amiga RigidDiskBlock layout, which always starts in
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cylinder 0 of a medium. Taken from page 254f of the RKM: Devices */
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struct RigidDiskBlock {
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ULONG rdb_ID; /* 4 character identifier */
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ULONG rdb_SummedLongs; /* size of this checksummed structure */
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LONG rdb_ChkSum; /* block checksum (longword sum to zero) */
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ULONG rdb_HostID; /* SCSI Target ID of host */
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ULONG rdb_BlockBytes; /* size of disk blocks */
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ULONG rdb_Flags; /* see below for defines */
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/* block list heads */
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ULONG rdb_BadBlockList; /* optional bad block list */
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ULONG rdb_PartitionList; /* optional first partition block */
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ULONG rdb_FileSysHeaderList; /* optional file system header block */
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ULONG rdb_DriveInit; /* optional drive-specific init code */
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/* DriveInit(lun,rdb,ior): "C" stk & d0/a0/a1 */
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ULONG rdb_Reserved1[6]; /* set to $ffffffff */
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/* physical drive characteristics */
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ULONG rdb_Cylinders; /* number of drive cylinders */
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ULONG rdb_Sectors; /* sectors per track */
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ULONG rdb_Heads; /* number of drive heads */
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ULONG rdb_Interleave; /* interleave */
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ULONG rdb_Park; /* landing zone cylinder */
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ULONG rdb_Reserved2[3];
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ULONG rdb_WritePreComp; /* starting cylinder: write precompensation */
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ULONG rdb_ReducedWrite; /* starting cylinder: reduced write current */
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ULONG rdb_StepRate; /* drive step rate */
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ULONG rdb_Reserved3[5];
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/* logical drive characteristics */
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ULONG rdb_RDBBlocksLo; /* low block of range reserved for hardblocks */
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ULONG rdb_RDBBlocksHi; /* high block of range for these hardblocks */
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ULONG rdb_LoCylinder; /* low cylinder of partitionable disk area */
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ULONG rdb_HiCylinder; /* high cylinder of partitionable data area */
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ULONG rdb_CylBlocks; /* number of blocks available per cylinder */
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ULONG rdb_AutoParkSeconds; /* zero for no auto park */
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ULONG rdb_HighRDSKBlock; /* highest block used by RDSK */
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/* (not including replacement bad blocks) */
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ULONG rdb_Reserved4;
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/* drive identification */
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char rdb_DiskVendor[8];
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char rdb_DiskProduct[16];
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char rdb_DiskRevision[4];
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char rdb_ControllerVendor[8];
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char rdb_ControllerProduct[16];
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char rdb_ControllerRevision[4];
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ULONG rdb_Reserved5[10];
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};
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#define IDNAME_RIGIDDISK 0x5244534B /* 'RDSK' */
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#define RDB_LOCATION_LIMIT 16
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#define RDBFB_LAST 0 /* no disks exist to be configured after */
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#define RDBFF_LAST 0x01L /* this one on this controller */
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#define RDBFB_LASTLUN 1 /* no LUNs exist to be configured greater */
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#define RDBFF_LASTLUN 0x02L /* than this one at this SCSI Target ID */
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#define RDBFB_LASTTID 2 /* no Target IDs exist to be configured */
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#define RDBFF_LASTTID 0x04L /* greater than this one on this SCSI bus */
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#define RDBFB_NORESELECT 3 /* don't bother trying to perform reselection */
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#define RDBFF_NORESELECT 0x08L /* when talking to this drive */
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#define RDBFB_DISKID 4 /* rdb_Disk... identification valid */
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#define RDBFF_DISKID 0x10L
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#define RDBFB_CTRLRID 5 /* rdb_Controller... identification valid */
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#define RDBFF_CTRLRID 0x20L
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/* added 7/20/89 by commodore: */
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#define RDBFB_SYNCH 6 /* drive supports scsi synchronous mode */
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#define RDBFF_SYNCH 0x40L /* CAN BE DANGEROUS TO USE IF IT DOESN'T! */
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struct PartitionBlock {
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ULONG pb_ID; /* 4 character identifier */
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ULONG pb_SummedLongs; /* size of this checksummed structure */
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LONG pb_ChkSum; /* block checksum (longword sum to zero) */
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ULONG pb_HostID; /* SCSI Target ID of host */
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ULONG pb_Next; /* block number of the next PartitionBlock */
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ULONG pb_Flags; /* see below for defines */
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ULONG pb_Reserved1[2];
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ULONG pb_DevFlags; /* preferred flags for OpenDevice */
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UBYTE pb_DriveName[32]; /* preferred DOS device name: BSTR form */
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/* (not used if this name is in use) */
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ULONG pb_Reserved2[15]; /* filler to 32 longwords */
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ULONG pb_Environment[17]; /* environment vector for this partition */
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ULONG pb_EReserved[15]; /* reserved for future environment vector */
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};
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#define IDNAME_PARTITION 0x50415254 /* 'PART' */
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#define PBFB_BOOTABLE 0 /* this partition is intended to be bootable */
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#define PBFF_BOOTABLE 1L /* (expected directories and files exist) */
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#define PBFB_NOMOUNT 1 /* do not mount this partition (e.g. manually */
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#define PBFF_NOMOUNT 2L /* mounted, but space reserved here) */
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/* this is from <dos/filehandler.h>
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#define DE_TABLESIZE 0 /* minimum value is 11 (includes NumBuffers) */
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#define DE_SIZEBLOCK 1 /* in longwords: standard value is 128 */
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#define DE_SECORG 2 /* not used; must be 0 */
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#define DE_NUMHEADS 3 /* # of heads (surfaces). drive specific */
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#define DE_SECSPERBLK 4 /* not used; must be 1 */
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#define DE_BLKSPERTRACK 5 /* blocks per track. drive specific */
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#define DE_RESERVEDBLKS 6 /* unavailable blocks at start. usually 2 */
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#define DE_PREFAC 7 /* not used; must be 0 */
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#define DE_INTERLEAVE 8 /* usually 0 */
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#define DE_LOWCYL 9 /* starting cylinder. typically 0 */
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#define DE_UPPERCYL 10 /* max cylinder. drive specific */
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#define DE_NUMBUFFERS 11 /* starting # of buffers. typically 5 */
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#define DE_MEMBUFTYPE 12 /* type of mem to allocate for buffers. */
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#define DE_BUFMEMTYPE 12 /* same as above, better name
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* 1 is public, 3 is chip, 5 is fast */
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#define DE_MAXTRANSFER 13 /* Max number bytes to transfer at a time */
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#define DE_MASK 14 /* Address Mask to block out certain memory */
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#define DE_BOOTPRI 15 /* Boot priority for autoboot */
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#define DE_DOSTYPE 16 /* ASCII (HEX) string showing filesystem type;
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* 0X444F5300 is old filesystem,
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* 0X444F5301 is fast file system */
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#define DE_BAUD 17 /* Baud rate for serial handler */
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#define DE_CONTROL 18 /* Control word for handler/filesystem */
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#define DE_BOOTBLOCKS 19 /* Number of blocks containing boot code */
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/* NEW ! BSD PARTITION TYPES.
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These are chosen to more or less resemble the original BSD partition
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layout, but they don't come too close (we're much more flexible!)
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there's
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- a root-partition
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- a swap-partition
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- user-partitions
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This gives the following layout for the 8 BSD partitions A-H:
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A: root (first one found with DOSTYPE_BSD_ROOT)
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B: swap (first one found with DOSTYPE_BSD_SWAP)
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C: whole disk (the traditional way to nuke your whole harddisk...)
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D-H: user (DOSTYPE_BSD_D TO DOSTYPE_BSD_H) */
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#define DOSTYPE_BSD_ROOT 'BSDR'
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#define DOSTYPE_BSD_SWAP 'BSDS'
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#define DOSTYPE_BSD_D 'BSDD'
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#define DOSTYPE_BSD_E 'BSDE'
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#define DOSTYPE_BSD_F 'BSDF'
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#define DOSTYPE_BSD_G 'BSDG'
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#define DOSTYPE_BSD_H 'BSDH'
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#endif _amiga_rdb_h
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