rom/devs/trackdisk/trackdisk_device.h

   1 /*
   2     Copyright © 1995-2007, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Internal defs for trackdisk
   6     Lang: English
   7 */
   8 #ifndef TRACKDISK_DEVICE_H
   9 #define TRACKDISK_DEVICE_H
  10
  11 #include <exec/types.h>
  12 #include <exec/devices.h>
  13 #include <exec/semaphores.h>
  14 #include <exec/interrupts.h>
  15 #include <exec/tasks.h>
  16
  17 #include <devices/trackdisk.h>
  18
  19 /* Stack size - 4096 longwords should be enough */
  20 #define STACK_SIZE      16384
  21
  22 /* Maximum number of units */
  23 #define TD_NUMUNITS 2
  24
  25 /* something */
  26 #define TDUF_WRITE      (1<<0)
  27
  28 struct TaskData
  29 {
  30     struct MsgPort      td_Port;                // MessagePort
  31     struct Task         td_Task;                // Task Structure
  32     APTR                td_Stack;   // Keep stack here
  33 };
  34
  35 #define TDU_NODISK      0x00
  36 #define TDU_DISK        0x01
  37
  38 #define TDU_READONLY    0x01
  39 #define TDU_WRITABLE    0x00
  40
  41 struct TDU
  42 {
  43     struct      TDU_PublicUnit pub;
  44     struct List tdu_Listeners;
  45     APTR        td_DMABuffer;           /* Buffer for DMA accesses */
  46     BOOL        tdu_Busy;               /* Unit working? */
  47     UBYTE       tdu_UnitNum;            /* Unit number */
  48     UBYTE       tdu_DiskIn;             /* Disk in drive? */
  49     UBYTE       tdu_MotorOn;            /* Motor on? */
  50     UBYTE       tdu_ProtStatus;
  51     UBYTE       tdu_lastcyl;
  52     UBYTE       tdu_lasthd;
  53     UBYTE       tdu_flags;
  54     UBYTE       tdu_stepdir;            /* Last step direction for disk insertion detection */
  55     UBYTE       tdu_Present;            /* Drive is present? */
  56 };
  57
  58 struct TrackDiskBase
  59 {
  60     struct Device               td_device;
  61     struct TaskData             *td_TaskData;
  62     struct TDU                  *td_Units[TD_NUMUNITS];
  63     struct timerequest          *td_TimerIO;
  64     struct MsgPort              *td_TimerMP;
  65     ULONG                       td_IntBit;              /* Sigbit for floppyints */
  66     ULONG                       td_TmoBit;              /* Used for timeout signaling */
  67     UBYTE                       td_comsize;             /* RAW command size */
  68     UBYTE                       td_rawcom[9];           /* RAW command to send */
  69     UBYTE                       td_comsize2;            /* Secondary command (inside td_dinit()) */
  70     UBYTE                       td_rawcom2[3];
  71     UBYTE                       td_result[7];           /* Last set of bytes */
  72     UBYTE                       td_dor;                 /* Digital Output Register */
  73     UBYTE                       td_sr0;
  74     UBYTE                       td_pcn;
  75     UBYTE                       td_inttmo;
  76     BOOL                        td_nomount;
  77
  78     struct Interrupt            td_FloppyInt;
  79     struct Interrupt            td_TimerInt;
  80 };
  81
  82 #endif /* TRACKDISK_DEVICE_H */