include/ntos/cdrom.h

   1 /* $Id$
   2  *
   3  * COPYRIGHT:    See COPYING in the top level directory
   4  * PROJECT:      ReactOS kernel
   5  * FILE:         include/ntos/cdrom.h
   6  * PURPOSE:      CD-ROM related definitions used by all the parts of the system
   7  * PROGRAMMER:   Eric Kohl <ekohl@rz-online.de>
   8  * UPDATE HISTORY:
   9  *               10/04/2002: Created
  10  */
  11
  12 #ifndef __INCLUDE_NTOS_CDROM_H
  13 #define __INCLUDE_NTOS_CDROM_H
  14
  15
  16 #define IOCTL_CDROM_BASE                FILE_DEVICE_CD_ROM
  17
  18 #define IOCTL_CDROM_READ_TOC            CTL_CODE(IOCTL_CDROM_BASE, 0x0000, METHOD_BUFFERED, FILE_READ_ACCESS)
  19 #define IOCTL_CDROM_GET_LAST_SESSION    CTL_CODE(IOCTL_CDROM_BASE, 0x000E, METHOD_BUFFERED, FILE_READ_ACCESS)
  20 #define IOCTL_CDROM_GET_DRIVE_GEOMETRY  CTL_CODE(IOCTL_CDROM_BASE, 0x0013, METHOD_BUFFERED, FILE_READ_ACCESS)
  21
  22 #define IOCTL_CDROM_CHECK_VERIFY        CTL_CODE(IOCTL_CDROM_BASE, 0x0200, METHOD_BUFFERED, FILE_READ_ACCESS)
  23 #define IOCTL_CDROM_MEDIA_REMOVAL       CTL_CODE(IOCTL_CDROM_BASE, 0x0201, METHOD_BUFFERED, FILE_READ_ACCESS)
  24 #define IOCTL_CDROM_EJECT_MEDIA         CTL_CODE(IOCTL_CDROM_BASE, 0x0202, METHOD_BUFFERED, FILE_READ_ACCESS)
  25 #define IOCTL_CDROM_LOAD_MEDIA          CTL_CODE(IOCTL_CDROM_BASE, 0x0203, METHOD_BUFFERED, FILE_READ_ACCESS)
  26 #define IOCTL_CDROM_RESERVE             CTL_CODE(IOCTL_CDROM_BASE, 0x0204, METHOD_BUFFERED, FILE_READ_ACCESS)
  27 #define IOCTL_CDROM_RELEASE             CTL_CODE(IOCTL_CDROM_BASE, 0x0205, METHOD_BUFFERED, FILE_READ_ACCESS)
  28 #define IOCTL_CDROM_FIND_NEW_DEVICES    CTL_CODE(IOCTL_CDROM_BASE, 0x0206, METHOD_BUFFERED, FILE_READ_ACCESS)
  29
  30
  31 #define MAXIMUM_NUMBER_TRACKS           100
  32 #define MAXIMUM_CDROM_SIZE              804
  33
  34 #define TOC_DATA_TRACK  0x04    /* TRACK_DATA.Control */
  35 #define TOC_LAST_TRACK  0xAA    /* TRACK_DATA.TrackNumber */
  36
  37 typedef struct _TRACK_DATA
  38 {
  39   UCHAR  Reserved;
  40   UCHAR  Control : 4;   /* bitfield; 0 || TOC_DATA_TRACK */
  41   UCHAR  Adr : 4;       /* Q-subchannel info */
  42   UCHAR  TrackNumber;   /* CDROM_TOC.FirstTrack or TOC_LAST_TRACK behind last track CDROM_TOC.TrackData[CDROM_TOC.LastTrack] */
  43   UCHAR  Reserved1;
  44   UCHAR  Address[4];    /* big-endian LBA address for TOC_DATA_TRACK; MSF (sometimes BCD-MSF) for audio */
  45 } TRACK_DATA, *PTRACK_DATA;
  46
  47 typedef struct _CDROM_TOC
  48 {
  49   /* >='sizeof(CDROM_TOC with (LastTrack-FirstTrack+1)+1{TOC_LAST_TRACK track} tracks)-2'
  50    * <='sizeof(CDROM_TOC)-2';
  51    * It does not count 'Length' field itself (==minus 2 bytes).
  52    * Little-endian format.
  53    */
  54   UCHAR  Length[2];
  55   UCHAR  FirstTrack;    /* based anywhere */
  56   UCHAR  LastTrack;     /* 'LastTrack-FirstTrack+1' is the real-tracks count; TOC_LAST_TRACK is one track behind */
  57   TRACK_DATA  TrackData[MAXIMUM_NUMBER_TRACKS];
  58 } CDROM_TOC, *PCDROM_TOC;
  59
  60 #define CDROM_TOC_SIZE sizeof(CDROM_TOC)
  61
  62 #endif /* __INCLUDE_NTOS_CDROM_H */
  63
  64 /* EOF */