modules/access/vcd/cdrom_internals.h

   1 /****************************************************************************
   2  * cdrom_internals.h: cdrom tools private header
   3  *****************************************************************************
   4  * Copyright (C) 1998-2001 VLC authors and VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Johan Bilien <jobi@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@netcourrier.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; either version 2.1 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public License
  21  * along with this program; if not, write to the Free Software Foundation,
  22  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * The vcddev structure
  27  *****************************************************************************/
  28 struct vcddev_s
  29 {
  30     char   *psz_dev;                                      /* vcd device name */
  31
  32     /* Section used in vcd image mode */
  33     int    i_vcdimage_handle;                   /* vcd image file descriptor */
  34     int    i_tracks;                          /* number of tracks of the vcd */
  35     int    *p_sectors;                           /* tracks layout on the vcd */
  36
  37     /* Section used in vcd device mode */
  38
  39 #ifdef _WIN32
  40     HANDLE h_device_handle;                         /* vcd device descriptor */
  41 #elif defined( __OS2__ )
  42     HFILE  hcd;                                     /* vcd device descriptor */
  43 #else
  44     int    i_device_handle;                         /* vcd device descriptor */
  45 #endif
  46
  47 };
  48
  49 #ifndef O_BINARY
  50 #   define O_BINARY 0
  51 #endif
  52
  53 #define VCDDEV_T 1
  54
  55 /*****************************************************************************
  56  * Platform specifics
  57  *****************************************************************************/
  58 #if defined( __APPLE__ )
  59 #define darwin_freeTOC( p ) free( (void*)p )
  60 #define CD_MIN_TRACK_NO 01
  61 #define CD_MAX_TRACK_NO 99
  62 #endif
  63
  64 #if defined( _WIN32 )
  65
  66 /* Win32 DeviceIoControl specifics */
  67 #ifndef MAXIMUM_NUMBER_TRACKS
  68 #    define MAXIMUM_NUMBER_TRACKS 100
  69 #endif
  70 typedef struct _TRACK_DATA {
  71     UCHAR Reserved;
  72     UCHAR Control : 4;
  73     UCHAR Adr : 4;
  74     UCHAR TrackNumber;
  75     UCHAR Reserved1;
  76     UCHAR Address[4];
  77 } TRACK_DATA, *PTRACK_DATA;
  78 typedef struct _CDROM_TOC {
  79     UCHAR Length[2];
  80     UCHAR FirstTrack;
  81     UCHAR LastTrack;
  82     TRACK_DATA TrackData[MAXIMUM_NUMBER_TRACKS];
  83 } CDROM_TOC, *PCDROM_TOC;
  84 typedef enum _TRACK_MODE_TYPE {
  85     YellowMode2,
  86     XAForm2,
  87     CDDA
  88 } TRACK_MODE_TYPE, *PTRACK_MODE_TYPE;
  89 typedef struct __RAW_READ_INFO {
  90     LARGE_INTEGER DiskOffset;
  91     ULONG SectorCount;
  92     TRACK_MODE_TYPE TrackMode;
  93 } RAW_READ_INFO, *PRAW_READ_INFO;
  94 typedef struct _CDROM_READ_TOC_EX {
  95   UCHAR  Format : 4;
  96   UCHAR  Reserved1 : 3;
  97   UCHAR  Msf : 1;
  98   UCHAR  SessionTrack;
  99   UCHAR  Reserved2;
 100   UCHAR  Reserved3;
 101 } CDROM_READ_TOC_EX, *PCDROM_READ_TOC_EX;
 102
 103 #ifndef IOCTL_CDROM_BASE
 104 #    define IOCTL_CDROM_BASE FILE_DEVICE_CD_ROM
 105 #endif
 106 #ifndef IOCTL_CDROM_READ_TOC
 107 #    define IOCTL_CDROM_READ_TOC CTL_CODE(IOCTL_CDROM_BASE, 0x0000, \
 108                                           METHOD_BUFFERED, FILE_READ_ACCESS)
 109 #endif
 110 #ifndef IOCTL_CDROM_RAW_READ
 111 #define IOCTL_CDROM_RAW_READ CTL_CODE(IOCTL_CDROM_BASE, 0x000F, \
 112                                       METHOD_OUT_DIRECT, FILE_READ_ACCESS)
 113 #endif
 114 #define IOCTL_CDROM_READ_TOC_EX CTL_CODE(IOCTL_CDROM_BASE, 0x0015, \
 115                                          METHOD_BUFFERED, FILE_READ_ACCESS)
 116
 117
 118 #define MINIMUM_CDROM_READ_TOC_EX_SIZE    2
 119 #define CDROM_READ_TOC_EX_FORMAT_CDTEXT   0x05
 120
 121 #endif /* _WIN32 */
 122
 123 #ifdef __OS2__
 124 #pragma pack( push, 1 )
 125 typedef struct os2_msf_s
 126 {
 127     unsigned char frame;
 128     unsigned char second;
 129     unsigned char minute;
 130     unsigned char reserved;
 131 } os2_msf_t;
 132
 133 typedef struct cdrom_get_tochdr_s
 134 {
 135     unsigned char sign[4];
 136 } cdrom_get_tochdr_t;
 137
 138 typedef struct cdrom_tochdr_s
 139 {
 140     unsigned char first_track;
 141     unsigned char last_track;
 142     os2_msf_t     lead_out;
 143 } cdrom_tochdr_t;
 144
 145 typedef struct cdrom_get_track_s
 146 {
 147     unsigned char sign[4];
 148     unsigned char track;
 149 } cdrom_get_track_t;
 150
 151 typedef struct cdrom_track_s
 152 {
 153     os2_msf_t     start;
 154     unsigned char adr:4;
 155     unsigned char control:4;
 156 } cdrom_track_t;
 157
 158 typedef struct cdrom_readlong_s
 159 {
 160     unsigned char  sign[4];
 161     unsigned char  addr_mode;
 162     unsigned short sectors;
 163     unsigned long  start;
 164     unsigned char  reserved;
 165     unsigned char  interleaved_size;
 166 } cdrom_readlong_t;
 167
 168 #pragma pack( pop )
 169 #endif
 170
 171 #define SECTOR_TYPE_MODE2_FORM2 0x14
 172 #define SECTOR_TYPE_CDDA 0x04
 173 #define READ_CD_RAW_MODE2 0xF0
 174 #define READ_CD_USERDATA 0x10
 175
 176 /*****************************************************************************
 177  * Local Prototypes
 178  *****************************************************************************/
 179 static int    OpenVCDImage( vlc_object_t *, const char *, struct vcddev_s * );
 180 static void   CloseVCDImage( vlc_object_t *, struct vcddev_s * );
 181
 182 #if defined( __APPLE__ )
 183 static CDTOC *darwin_getTOC( vlc_object_t *, const struct vcddev_s * );
 184 static int    darwin_getNumberOfTracks( CDTOC *, int );
 185
 186 #elif defined( _WIN32 )
 187 static int    win32_vcd_open( vlc_object_t *, const char *, struct vcddev_s *);
 188
 189 #elif defined( __OS2__ )
 190 static int    os2_vcd_open( vlc_object_t *, const char *, struct vcddev_s *);
 191 #endif