/************************************************************************ * * * Copyright (C) 1985, Commodore Amiga Inc. All rights reserved. * * * ************************************************************************/ /************************************************************************ * * trackdisk.h * * Source Control * ------ ------- * * $Header: trackdisk.h,v 33.3 86/04/10 00:57:35 neil Exp $ * * $Locker: $ * ************************************************************************/ #ifndef DEVICES_TRACKDISK_H #define DEVICES_TRACKDISK_H #ifndef EXEC_IO_H #include "exec/io.h" #endif !EXEC_IO_H #ifndef EXEC_DEVICES_H #include "exec/devices.h" #endif !EXEC_DEVICES_H /* *-------------------------------------------------------------------- * * 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_LASTCOMM (CMD_NONSTD+13) /* * * 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; }; /* ** 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) /* 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 /* *-------------------------------------------------------------------- * * 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 */ }; #endif DEVICES_TRACKDISK_H