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#ifndef DEVICES_TRACKDISK_H
#define DEVICES_TRACKDISK_H
/*
**
** $Filename: devices/trackdisk.h $
** $Release: 2.04 Includes, V37.4 $
** $Revision: 33.13 $
** $Date: 90/11/28 $
**
** trackdisk device structure and value definitions
**
** (C) Copyright 1985-1999 Amiga, Inc.
** All Rights Reserved
**
*/
#ifndef EXEC_IO_H
#include "exec/io.h"
#endif
#ifndef EXEC_DEVICES_H
#include "exec/devices.h"
#endif
/*
*--------------------------------------------------------------------
*
* Physical drive constants
*
*--------------------------------------------------------------------
*/
/* OBSOLETE -- use the TD_GETNUMTRACKS command! */
/*#define NUMCYLS 80*/ /* normal # of cylinders */
/*#define MAXCYLS (NUMCYLS+20)*/ /* max # cyls to look for during cal */
/*#define NUMHEADS 2*/
/*#define NUMTRACKS (NUMCYLS*NUMHEADS)*/
#define NUMSECS 11
#define NUMUNITS 4
/*
*--------------------------------------------------------------------
*
* Useful constants
*
*--------------------------------------------------------------------
*/
/*-- sizes before mfm encoding */
#define TD_SECTOR 512
#define TD_SECSHIFT 9 /* log TD_SECTOR */
/*
*--------------------------------------------------------------------
*
* Driver Specific Commands
*
*--------------------------------------------------------------------
*/
/*
*-- TD_NAME is a generic macro to get the name of the driver. This
*-- way if the name is ever changed you will pick up the change
*-- automatically.
*--
*-- Normal usage would be:
*--
*-- char internalName[] = TD_NAME;
*--
*/
#define TD_NAME "trackdisk.device"
#define TDF_EXTCOM (1<<15) /* for internal use only! */
#define TD_MOTOR (CMD_NONSTD+0) /* control the disk's motor */
#define TD_SEEK (CMD_NONSTD+1) /* explicit seek (for testing) */
#define TD_FORMAT (CMD_NONSTD+2) /* format disk */
#define TD_REMOVE (CMD_NONSTD+3) /* notify when disk changes */
#define TD_CHANGENUM (CMD_NONSTD+4) /* number of disk changes */
#define TD_CHANGESTATE (CMD_NONSTD+5) /* is there a disk in the drive? */
#define TD_PROTSTATUS (CMD_NONSTD+6) /* is the disk write protected? */
#define TD_RAWREAD (CMD_NONSTD+7) /* read raw bits from the disk */
#define TD_RAWWRITE (CMD_NONSTD+8) /* write raw bits to the disk */
#define TD_GETDRIVETYPE (CMD_NONSTD+9) /* get the type of the disk drive */
#define TD_GETNUMTRACKS (CMD_NONSTD+10) /* # of tracks for this type drive */
#define TD_ADDCHANGEINT (CMD_NONSTD+11) /* TD_REMOVE done right */
#define TD_REMCHANGEINT (CMD_NONSTD+12) /* remove softint set by ADDCHANGEINT */
#define TD_GETGEOMETRY (CMD_NONSTD+13) /* gets the disk geometry table */
#define TD_EJECT (CMD_NONSTD+14) /* for those drives that support it */
#define TD_LASTCOMM (CMD_NONSTD+15)
/*
*
* The disk driver has an "extended command" facility. These commands
* take a superset of the normal IO Request block.
*
*/
#define ETD_WRITE (CMD_WRITE|TDF_EXTCOM)
#define ETD_READ (CMD_READ|TDF_EXTCOM)
#define ETD_MOTOR (TD_MOTOR|TDF_EXTCOM)
#define ETD_SEEK (TD_SEEK|TDF_EXTCOM)
#define ETD_FORMAT (TD_FORMAT|TDF_EXTCOM)
#define ETD_UPDATE (CMD_UPDATE|TDF_EXTCOM)
#define ETD_CLEAR (CMD_CLEAR|TDF_EXTCOM)
#define ETD_RAWREAD (TD_RAWREAD|TDF_EXTCOM)
#define ETD_RAWWRITE (TD_RAWWRITE|TDF_EXTCOM)
/*
*
* extended IO has a larger than normal io request block.
*
*/
struct IOExtTD {
struct IOStdReq iotd_Req;
ULONG iotd_Count;
ULONG iotd_SecLabel;
};
/*
* This is the structure returned by TD_DRIVEGEOMETRY
* Note that the layout can be defined three ways:
*
* 1. TotalSectors
* 2. Cylinders and CylSectors
* 3. Cylinders, Heads, and TrackSectors.
*
* #1 is most accurate, #2 is less so, and #3 is least accurate. All
* are usable, though #2 and #3 may waste some portion of the available
* space on some drives.
*/
struct DriveGeometry {
ULONG dg_SectorSize; /* in bytes */
ULONG dg_TotalSectors; /* total # of sectors on drive */
ULONG dg_Cylinders; /* number of cylinders */
ULONG dg_CylSectors; /* number of sectors/cylinder */
ULONG dg_Heads; /* number of surfaces */
ULONG dg_TrackSectors; /* number of sectors/track */
ULONG dg_BufMemType; /* preferred buffer memory type */
/* (usually MEMF_PUBLIC) */
UBYTE dg_DeviceType; /* codes as defined in the SCSI-2 spec*/
UBYTE dg_Flags; /* flags, including removable */
UWORD dg_Reserved;
};
/* device types */
#define DG_DIRECT_ACCESS 0
#define DG_SEQUENTIAL_ACCESS 1
#define DG_PRINTER 2
#define DG_PROCESSOR 3
#define DG_WORM 4
#define DG_CDROM 5
#define DG_SCANNER 6
#define DG_OPTICAL_DISK 7
#define DG_MEDIUM_CHANGER 8
#define DG_COMMUNICATION 9
#define DG_UNKNOWN 31
/* flags */
#define DGB_REMOVABLE 0
#define DGF_REMOVABLE 1
/*
** raw read and write can be synced with the index pulse. This flag
** in io request's IO_FLAGS field tells the driver that you want this.
*/
#define IOTDB_INDEXSYNC 4
#define IOTDF_INDEXSYNC (1<<4)
/*
** raw read and write can be synced with a $4489 sync pattern. This flag
** in io request's IO_FLAGS field tells the driver that you want this.
*/
#define IOTDB_WORDSYNC 5
#define IOTDF_WORDSYNC (1<<5)
/* labels are TD_LABELSIZE bytes per sector */
#define TD_LABELSIZE 16
/*
** This is a bit in the FLAGS field of OpenDevice. If it is set, then
** the driver will allow you to open all the disks that the trackdisk
** driver understands. Otherwise only 3.5" disks will succeed.
*/
#define TDB_ALLOW_NON_3_5 0
#define TDF_ALLOW_NON_3_5 (1<<0)
/*
** If you set the TDB_ALLOW_NON_3_5 bit in OpenDevice, then you don't
** know what type of disk you really got. These defines are for the
** TD_GETDRIVETYPE command. In addition, you can find out how many
** tracks are supported via the TD_GETNUMTRACKS command.
*/
#define DRIVE3_5 1
#define DRIVE5_25 2
#define DRIVE3_5_150RPM 3
/*
*--------------------------------------------------------------------
*
* Driver error defines
*
*--------------------------------------------------------------------
*/
#define TDERR_NotSpecified 20 /* general catchall */
#define TDERR_NoSecHdr 21 /* couldn't even find a sector */
#define TDERR_BadSecPreamble 22 /* sector looked wrong */
#define TDERR_BadSecID 23 /* ditto */
#define TDERR_BadHdrSum 24 /* header had incorrect checksum */
#define TDERR_BadSecSum 25 /* data had incorrect checksum */
#define TDERR_TooFewSecs 26 /* couldn't find enough sectors */
#define TDERR_BadSecHdr 27 /* another "sector looked wrong" */
#define TDERR_WriteProt 28 /* can't write to a protected disk */
#define TDERR_DiskChanged 29 /* no disk in the drive */
#define TDERR_SeekError 30 /* couldn't find track 0 */
#define TDERR_NoMem 31 /* ran out of memory */
#define TDERR_BadUnitNum 32 /* asked for a unit > NUMUNITS */
#define TDERR_BadDriveType 33 /* not a drive that trackdisk groks */
#define TDERR_DriveInUse 34 /* someone else allocated the drive */
#define TDERR_PostReset 35 /* user hit reset; awaiting doom */
/*
*--------------------------------------------------------------------
*
* public portion of the unit structure
*
*--------------------------------------------------------------------
*/
struct TDU_PublicUnit {
struct Unit tdu_Unit; /* base message port */
UWORD tdu_Comp01Track; /* track for first precomp */
UWORD tdu_Comp10Track; /* track for second precomp */
UWORD tdu_Comp11Track; /* track for third precomp */
ULONG tdu_StepDelay; /* time to wait after stepping */
ULONG tdu_SettleDelay; /* time to wait after seeking */
UBYTE tdu_RetryCnt; /* # of times to retry */
UBYTE tdu_PubFlags; /* public flags, see below */
UWORD tdu_CurrTrk; /* track the heads are over... */
/* ONLY ACCESS WHILE UNIT IS STOPPED! */
ULONG tdu_CalibrateDelay; /* time to wait after stepping */
/* during a recalibrate */
ULONG tdu_Counter; /* counter for disk changes... */
/* ONLY ACCESS WHILE UNIT IS STOPPED! */
};
/* flags for tdu_PubFlags */
#define TDPB_NOCLICK 0
#define TDPF_NOCLICK (1L << 0)
#endif /* DEVICES_TRACKDISK_H */