/* -*- C++ -*-
    $Id: devices.hpp,v 1.4 2006/03/07 10:46:36 rocky Exp $

    Copyright (C) 2005, 2006 Rocky Bernstein <rocky@panix.com>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/** \file devices.hpp
 *
 *  \brief methods relating to devices. It is *not* part of a class. 
 *  This file should not be #included directly.
 */


/*!
  Close media tray in CD drive if there is a routine to do so. 
  
  @param psz_drive the name of CD-ROM to be closed.
  @param driver_id is the driver to be used or that got used if
  it was DRIVER_UNKNOWN or DRIVER_DEVICE; If this is NULL, we won't
  report back the driver used.
*/
void closeTray (const char *psz_drive, /*in/out*/ driver_id_t &driver_id);

/*!
  Close media tray in CD drive if there is a routine to do so. 
  
  @param psz_drive the name of CD-ROM to be closed. If omitted or 
  NULL, we'll scan for a suitable CD-ROM.
*/
void closeTray (const char *psz_drive=(const char *)NULL);

/*! 
  Get a string decribing driver_id. 
  
  @param driver_id the driver you want the description for
  @return a sring of driver description
*/
const char *driverDescribe (driver_id_t driver_id);

/*!
  Eject media in CD drive if there is a routine to do so. 
  
  If the CD is ejected, object is destroyed.
*/
void ejectMedia (const char *psz_drive);

/*!
  Free device list returned by GetDevices
  
  @param device_list list returned by GetDevices
  
  @see GetDevices
  
*/
void freeDeviceList (char * device_list[]);

/*!
  Return a string containing the default CD device if none is specified.
  if p_driver_id is DRIVER_UNKNOWN or DRIVER_DEVICE
  then find a suitable one set the default device for that.
  
  NULL is returned if we couldn't get a default device.
*/
char * getDefaultDevice(/*in/out*/ driver_id_t &driver_id);

/*! Return an array of device names. If you want a specific
  devices for a driver, give that device. If you want hardware
  devices, give DRIVER_DEVICE and if you want all possible devices,
  image drivers and hardware drivers give DRIVER_UNKNOWN.
  
  NULL is returned if we couldn't return a list of devices.
  
  In some situations of drivers or OS's we can't find a CD device if
  there is no media in it and it is possible for this routine to return
  NULL even though there may be a hardware CD-ROM.
*/
char ** getDevices(driver_id_t driver_id=DRIVER_DEVICE);

/*! Like GetDevices above, but we may change the p_driver_id if we
  were given DRIVER_DEVICE or DRIVER_UNKNOWN. This is because
  often one wants to get a drive name and then *open* it
  afterwards. Giving the driver back facilitates this, and speeds
  things up for libcdio as well.
*/

char **getDevices (driver_id_t &driver_id);

/*!
  Get an array of device names in search_devices that have at least
  the capabilities listed by the capabities parameter.  If
  search_devices is NULL, then we'll search all possible CD drives.
  
  If "b_any" is set false then every capability listed in the
  extended portion of capabilities (i.e. not the basic filesystem)
  must be satisified. If "any" is set true, then if any of the
  capabilities matches, we call that a success.
  
  To find a CD-drive of any type, use the mask CDIO_FS_MATCH_ALL.
  
  @return the array of device names or NULL if we couldn't get a
  default device.  It is also possible to return a non NULL but
  after dereferencing the the value is NULL. This also means nothing
  was found.
*/
char ** getDevices(/*in*/ char *ppsz_search_devices[],
		   cdio_fs_anal_t capabilities, bool b_any=false);

/*!
  Like GetDevices above but we return the driver we found
  as well. This is because often one wants to search for kind of drive
  and then *open* it afterwards. Giving the driver back facilitates this,
  and speeds things up for libcdio as well.
*/
char ** getDevices(/*in*/ char* ppsz_search_devices[],
		   cdio_fs_anal_t capabilities, /*out*/ driver_id_t &driver_id,
		   bool b_any=false);

/*! Return true if we Have driver for driver_id */
bool haveDriver (driver_id_t driver_id);

/*! 

Determine if bin_name is the bin file part of  a CDRWIN CD disk image.

@param bin_name location of presumed CDRWIN bin image file.
    @return the corresponding CUE file if bin_name is a BIN file or
    NULL if not a BIN file.
  */
char *isBinFile(const char *psz_bin_name);

  
/*! 
    Determine if cue_name is the cue sheet for a CDRWIN CD disk image.
    
    @return corresponding BIN file if cue_name is a CDRWIN cue file or
    NULL if not a CUE file.
  */
char *isCueFile(const char *psz_cue_name);
  
/*! 
    Determine if psz_source refers to a real hardware CD-ROM.
    
    @param psz_source location name of object
    @param driver_id   driver for reading object. Use DRIVER_UNKNOWN if you
    don't know what driver to use.
    @return true if psz_source is a device; If false is returned we
    could have a CD disk image. 
*/
bool isDevice(const char *psz_source, driver_id_t driver_id);

/*! 
    Determine if psz_nrg is a Nero CD disk image.
    
    @param psz_nrg location of presumed NRG image file.
    @return true if psz_nrg is a Nero NRG image or false
    if not a NRG image.
*/
bool isNero(const char *psz_nrg);

/*! 
  Determine if psz_toc is a TOC file for a cdrdao CD disk image.
  
  @param psz_toc location of presumed TOC image file.
  @return true if toc_name is a cdrdao TOC file or false
  if not a TOC file.
*/
bool isTocFile(const char *psz_toc);
  
