drivers/storage/floppy/floppy.h

   1 /*
   2  *  ReactOS Floppy Driver
   3  *  Copyright (C) 2004, Vizzini (vizzini@plasmic.com)
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * PROJECT:         ReactOS Floppy Driver
  20  * FILE:            floppy.h
  21  * PURPOSE:         Header for Main floppy driver routines
  22  * PROGRAMMER:      Vizzini (vizzini@plasmic.com)
  23  * REVISIONS:
  24  *                  15-Feb-2004 vizzini - Created
  25  */
  26
  27 #define MAX_DEVICE_NAME 255
  28 #define MAX_ARC_PATH_LEN 255
  29 #define MAX_DRIVES_PER_CONTROLLER 4
  30 #define MAX_CONTROLLERS 4
  31
  32 /* MS doesn't prototype this but the w2k kernel exports it */
  33 int _cdecl swprintf(const WCHAR *, ...);
  34
  35 /* need ioctls in ddk build mode */
  36 #include <ntdddisk.h>
  37
  38 struct _CONTROLLER_INFO;
  39
  40 typedef struct _DRIVE_INFO
  41 {
  42     struct _CONTROLLER_INFO  *ControllerInfo;
  43     UCHAR                    UnitNumber; /* 0,1,2,3 */
  44     LARGE_INTEGER            MotorStartTime;
  45     PDEVICE_OBJECT           DeviceObject;
  46     CM_FLOPPY_DEVICE_DATA    FloppyDeviceData;
  47     DISK_GEOMETRY            DiskGeometry;
  48     UCHAR                    BytesPerSectorCode;
  49     WCHAR                    SymLinkBuffer[MAX_DEVICE_NAME];
  50     WCHAR                    ArcPathBuffer[MAX_ARC_PATH_LEN];
  51     ULONG                    DiskChangeCount;
  52     BOOLEAN                  Initialized;
  53 } DRIVE_INFO, *PDRIVE_INFO;
  54
  55 typedef struct _CONTROLLER_INFO
  56 {
  57     BOOLEAN          Populated;
  58     BOOLEAN          Initialized;
  59     ULONG            ControllerNumber;
  60     INTERFACE_TYPE   InterfaceType;
  61     ULONG            BusNumber;
  62     ULONG            Level;
  63     KIRQL            MappedLevel;
  64     ULONG            Vector;
  65     ULONG            MappedVector;
  66     KINTERRUPT_MODE  InterruptMode;
  67     PUCHAR           BaseAddress;
  68     ULONG            Dma;
  69     ULONG            MapRegisters;
  70     PVOID            MapRegisterBase;
  71     BOOLEAN          Master;
  72     KEVENT           SynchEvent;
  73     KDPC             Dpc;
  74     PKINTERRUPT      InterruptObject;
  75     PADAPTER_OBJECT  AdapterObject;
  76     UCHAR            NumberOfDrives;
  77     BOOLEAN          ImpliedSeeks;
  78     DRIVE_INFO       DriveInfo[MAX_DRIVES_PER_CONTROLLER];
  79     PDRIVE_INFO      CurrentDrive;
  80     BOOLEAN          Model30;
  81     KEVENT           MotorStoppedEvent;
  82     KTIMER           MotorTimer;
  83     KDPC             MotorStopDpc;
  84     BOOLEAN          StopDpcQueued;
  85 } CONTROLLER_INFO, *PCONTROLLER_INFO;
  86
  87 NTSTATUS NTAPI
  88 DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath);
  89
  90 VOID NTAPI
  91 SignalMediaChanged(PDEVICE_OBJECT DeviceObject, PIRP Irp);
  92
  93 VOID NTAPI
  94 WaitForControllerInterrupt(PCONTROLLER_INFO ControllerInfo);
  95
  96 NTSTATUS NTAPI
  97 ResetChangeFlag(PDRIVE_INFO DriveInfo);
  98
  99 VOID NTAPI
 100 StartMotor(PDRIVE_INFO DriveInfo);
 101
 102 VOID NTAPI
 103 StopMotor(PCONTROLLER_INFO ControllerInfo);
 104
 105 /*
 106  * MEDIA TYPES
 107  *
 108  * This table was found at http://www.nondot.org/sabre/os/files/Disk/FloppyMediaIDs.txt.
 109  * Thanks to raster@indirect.com for this information.
 110  *
 111  * Format   Size   Cyls   Heads  Sec/Trk   FATs   Sec/FAT   Sec/Root   Media
 112  * 160K     5 1/4   40      1       8       2        ?         ?        FE
 113  * 180K     5 1/4   40      1       9       2        ?         4        FC
 114  * 320K     5 1/4   40      2       8       2        ?         ?        FF
 115  * 360K     5 1/4   40      2       9       2        4         7        FD
 116  * 1.2M     5 1/4   80      2      15       2       14        14        F9
 117  * 720K     3 1/2   80      2       9       2        6         7        F9
 118  * 1.44M    3 1/2   80      2      18       2       18        14        F0
 119  */
 120
 121 #define GEOMETRY_144_MEDIATYPE F3_1Pt44_512
 122 #define GEOMETRY_144_CYLINDERS 80
 123 #define GEOMETRY_144_TRACKSPERCYLINDER 2
 124 #define GEOMETRY_144_SECTORSPERTRACK 18
 125 #define GEOMETRY_144_BYTESPERSECTOR 512
 126