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Diffstat (limited to 'include/asm-m68k/amigardb.h')
| -rw-r--r-- | include/asm-m68k/amigardb.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/include/asm-m68k/amigardb.h b/include/asm-m68k/amigardb.h new file mode 100644 index 000000000..57032469d --- /dev/null +++ b/include/asm-m68k/amigardb.h @@ -0,0 +1,126 @@ +#ifndef _LINUX_AMIGARDB_H +#define _LINUX_AMIGARDB_H 1 + +#define ULONG u_long +#define LONG long +#define UBYTE u_char + +/* definitions for the Amiga RigidDiskBlock layout, which always starts in + cylinder 0 of a medium. Taken from page 254f of the RKM: Devices */ + +struct RigidDiskBlock { + ULONG rdb_ID; /* 4 character identifier */ + ULONG rdb_SummedLongs; /* size of this checksummed structure */ + LONG rdb_ChkSum; /* block checksum (longword sum to zero) */ + ULONG rdb_HostID; /* SCSI Target ID of host */ + ULONG rdb_BlockBytes; /* size of disk blocks */ + ULONG rdb_Flags; /* see below for defines */ + /* block list heads */ + ULONG rdb_BadBlockList; /* optional bad block list */ + ULONG rdb_PartitionList; /* optional first partition block */ + ULONG rdb_FileSysHeaderList; /* optional file system header block */ + ULONG rdb_DriveInit; /* optional drive-specific init code */ + /* DriveInit(lun,rdb,ior): "C" stk & d0/a0/a1 */ + ULONG rdb_Reserved1[6]; /* set to $ffffffff */ + /* physical drive characteristics */ + ULONG rdb_Cylinders; /* number of drive cylinders */ + ULONG rdb_Sectors; /* sectors per track */ + ULONG rdb_Heads; /* number of drive heads */ + ULONG rdb_Interleave; /* interleave */ + ULONG rdb_Park; /* landing zone cylinder */ + ULONG rdb_Reserved2[3]; + ULONG rdb_WritePreComp; /* starting cylinder: write precompensation */ + ULONG rdb_ReducedWrite; /* starting cylinder: reduced write current */ + ULONG rdb_StepRate; /* drive step rate */ + ULONG rdb_Reserved3[5]; + /* logical drive characteristics */ + ULONG rdb_RDBBlocksLo; /* low block of range reserved for hardblocks */ + ULONG rdb_RDBBlocksHi; /* high block of range for these hardblocks */ + ULONG rdb_LoCylinder; /* low cylinder of partitionable disk area */ + ULONG rdb_HiCylinder; /* high cylinder of partitionable data area */ + ULONG rdb_CylBlocks; /* number of blocks available per cylinder */ + ULONG rdb_AutoParkSeconds; /* zero for no auto park */ + ULONG rdb_HighRDSKBlock; /* highest block used by RDSK */ + /* (not including replacement bad blocks) */ + ULONG rdb_Reserved4; + /* drive identification */ + char rdb_DiskVendor[8]; + char rdb_DiskProduct[16]; + char rdb_DiskRevision[4]; + char rdb_ControllerVendor[8]; + char rdb_ControllerProduct[16]; + char rdb_ControllerRevision[4]; + ULONG rdb_Reserved5[10]; +}; + +#define IDNAME_RIGIDDISK 0x5244534B /* 'RDSK' */ + +#define RDB_LOCATION_LIMIT 16 + +#define RDBFB_LAST 0 /* no disks exist to be configured after */ +#define RDBFF_LAST 0x01L /* this one on this controller */ +#define RDBFB_LASTLUN 1 /* no LUNs exist to be configured greater */ +#define RDBFF_LASTLUN 0x02L /* than this one at this SCSI Target ID */ +#define RDBFB_LASTTID 2 /* no Target IDs exist to be configured */ +#define RDBFF_LASTTID 0x04L /* greater than this one on this SCSI bus */ +#define RDBFB_NORESELECT 3 /* don't bother trying to perform reselection */ +#define RDBFF_NORESELECT 0x08L /* when talking to this drive */ +#define RDBFB_DISKID 4 /* rdb_Disk... identification valid */ +#define RDBFF_DISKID 0x10L +#define RDBFB_CTRLRID 5 /* rdb_Controller... identification valid */ +#define RDBFF_CTRLRID 0x20L + /* added 7/20/89 by commodore: */ +#define RDBFB_SYNCH 6 /* drive supports scsi synchronous mode */ +#define RDBFF_SYNCH 0x40L /* CAN BE DANGEROUS TO USE IF IT DOESN'T! */ + +struct PartitionBlock { + ULONG pb_ID; /* 4 character identifier */ + ULONG pb_SummedLongs; /* size of this checksummed structure */ + LONG pb_ChkSum; /* block checksum (longword sum to zero) */ + ULONG pb_HostID; /* SCSI Target ID of host */ + ULONG pb_Next; /* block number of the next PartitionBlock */ + ULONG pb_Flags; /* see below for defines */ + ULONG pb_Reserved1[2]; + ULONG pb_DevFlags; /* preferred flags for OpenDevice */ + UBYTE pb_DriveName[32]; /* preferred DOS device name: BSTR form */ + /* (not used if this name is in use) */ + ULONG pb_Reserved2[15]; /* filler to 32 longwords */ + ULONG pb_Environment[17]; /* environment vector for this partition */ + ULONG pb_EReserved[15]; /* reserved for future environment vector */ +}; + +#define IDNAME_PARTITION 0x50415254 /* 'PART' */ + +#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) */ + +/* this is from <dos/filehandler.h> */ + +#define DE_TABLESIZE 0 /* minimum value is 11 (includes NumBuffers) */ +#define DE_SIZEBLOCK 1 /* in longwords: standard value is 128 */ +#define DE_SECORG 2 /* not used; must be 0 */ +#define DE_NUMHEADS 3 /* # of heads (surfaces). drive specific */ +#define DE_SECSPERBLK 4 /* not used; must be 1 */ +#define DE_BLKSPERTRACK 5 /* blocks per track. drive specific */ +#define DE_RESERVEDBLKS 6 /* unavailable blocks at start. usually 2 */ +#define DE_PREFAC 7 /* not used; must be 0 */ +#define DE_INTERLEAVE 8 /* usually 0 */ +#define DE_LOWCYL 9 /* starting cylinder. typically 0 */ +#define DE_UPPERCYL 10 /* max cylinder. drive specific */ +#define DE_NUMBUFFERS 11 /* starting # of buffers. typically 5 */ +#define DE_MEMBUFTYPE 12 /* type of mem to allocate for buffers. */ +#define DE_BUFMEMTYPE 12 /* same as above, better name + * 1 is public, 3 is chip, 5 is fast */ +#define DE_MAXTRANSFER 13 /* Max number bytes to transfer at a time */ +#define DE_MASK 14 /* Address Mask to block out certain memory */ +#define DE_BOOTPRI 15 /* Boot priority for autoboot */ +#define DE_DOSTYPE 16 /* ASCII (HEX) string showing filesystem type; + * 0X444F5300 is old filesystem, + * 0X444F5301 is fast file system */ +#define DE_BAUD 17 /* Baud rate for serial handler */ +#define DE_CONTROL 18 /* Control word for handler/filesystem */ +#define DE_BOOTBLOCKS 19 /* Number of blocks containing boot code */ + +#endif /* _LINUX_AMIGARDB_H */ |