modules/services_discovery/os2drive.c

   1 /**
   2  * @file os2drive.c
   3  * @brief List of disc drives for VLC media player for OS/2
   4  */
   5 /*****************************************************************************
   6  * Copyright (C) 2012 KO Myung-Hun <komh@chollian.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU Lesser General Public License as published by
  10  * the Free Software Foundation; either version 2.1 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public License
  19  * along with this program; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #ifdef HAVE_CONFIG_H
  24 # include <config.h>
  25 #endif
  26
  27 #include <vlc_common.h>
  28 #include <vlc_services_discovery.h>
  29 #include <vlc_plugin.h>
  30
  31 #define IOCTL_CDROMDISK2        0x82
  32 #define CDROMDISK2_DRIVELETTERS 0x60
  33
  34 static int Open (vlc_object_t *);
  35
  36 VLC_SD_PROBE_HELPER("disc", N_("Discs"), SD_CAT_DEVICES)
  37
  38 /*
  39  * Module descriptor
  40  */
  41 vlc_module_begin ()
  42     add_submodule ()
  43     set_shortname (N_("Discs"))
  44     set_description (N_("Discs"))
  45     set_category (CAT_PLAYLIST)
  46     set_subcategory (SUBCAT_PLAYLIST_SD)
  47     set_capability ("services_discovery", 0)
  48     set_callbacks (Open, NULL)
  49     add_shortcut ("disc")
  50
  51     VLC_SD_PROBE_SUBMODULE
  52
  53 vlc_module_end ()
  54
  55 /**
  56  * Probes and initializes.
  57  */
  58 static int Open (vlc_object_t *obj)
  59 {
  60     services_discovery_t *sd = (services_discovery_t *)obj;
  61
  62     HFILE hcd2;
  63     ULONG ulAction;
  64     ULONG ulParamLen;
  65     ULONG ulData;
  66     ULONG ulDataLen;
  67     ULONG rc;
  68
  69     sd->description = _("Discs");
  70
  71     if (DosOpen ((PSZ)"CD-ROM2$", (PHFILE)&hcd2, &ulAction, 0, FILE_NORMAL,
  72                  OPEN_ACTION_OPEN_IF_EXISTS | OPEN_ACTION_FAIL_IF_NEW,
  73                  OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL))
  74         return VLC_EGENERIC;
  75
  76     rc = DosDevIOCtl (hcd2, IOCTL_CDROMDISK2, CDROMDISK2_DRIVELETTERS,
  77                       NULL, 0, &ulParamLen, &ulData, sizeof(ulData), &ulDataLen);
  78     if (!rc)
  79     {
  80         char mrl[] = "file:///A:/", name[] = "A:";
  81
  82         int count = LOUSHORT(ulData);
  83         int drive = HIUSHORT(ulData);
  84
  85         input_item_t *item;
  86         char          letter;
  87
  88         for (; count; --count, ++drive)
  89         {
  90             letter = 'A' + drive;
  91
  92             mrl[8] = name[0] = letter;
  93             item = input_item_NewDisc (mrl, name, -1);
  94             msg_Dbg (sd, "adding %s (%s)", mrl, name);
  95             if (item == NULL)
  96                 break;
  97
  98             services_discovery_AddItem (sd, item);
  99         }
 100     }
 101
 102     DosClose (hcd2);
 103
 104     return rc ? VLC_EGENERIC : VLC_SUCCESS;
 105 }