NetBSD/sys/arch/amiga/dev/rdb.h

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1994-02-11 10:00:37 +03:00
/*
* $Id: rdb.h,v 1.5 1994/02/11 07:02:02 chopps Exp $
*/
#ifndef _amiga_rdb_h
#define _amiga_rdb_h
#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 */
/* NEW ! BSD PARTITION TYPES.
These are chosen to more or less resemble the original BSD partition
layout, but they don't come too close (we're much more flexible!)
there's
- a root-partition
- a swap-partition
- user-partitions
This gives the following layout for the 8 BSD partitions A-H:
A: root (first one found with DOSTYPE_BSD_ROOT)
B: swap (first one found with DOSTYPE_BSD_SWAP)
C: whole disk (the traditional way to nuke your whole harddisk...)
D-H: user (DOSTYPE_BSD_D TO DOSTYPE_BSD_H) */
#define DOSTYPE_BSD_ROOT 0x42534452 /* 'BSDR' */
#define DOSTYPE_BSD_SWAP 0x42534453 /* 'BSDS' */
#define DOSTYPE_BSD_D 0x42534444 /* 'BSDD' */
#define DOSTYPE_BSD_E 0x42534445 /* 'BSDE' */
#define DOSTYPE_BSD_F 0x42534446 /* 'BSDF' */
#define DOSTYPE_BSD_G 0x42534447 /* 'BSDG' */
#define DOSTYPE_BSD_H 0x42534448 /* 'BSDH' */
#endif _amiga_rdb_h