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/*****************************************************************************
* eject.c: CD/DVD-ROM ejection handling functions
*****************************************************************************
* Copyright (C) 2001-2011 the VideoLAN team
*
* Authors: Julien Blache <jb@technologeek.org> for the Linux part
* with code taken from the Linux "eject" command
* Jon Lech Johansen <jon-vl@nanocrew.net> for Darwin
* Gildas Bazin <gbazin@netcourrier.com> for Win32
*
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/**
* \file
* This file contain functions to eject CD and DVD drives
*/
/*#ifdef HAVE_CONFIG_H
# include "config.h"
#endif*/
#include <vlc_common.h>
#include <vlc_fs.h>
#include <vlc_charset.h>
#if defined( _WIN32 )
# include <mmsystem.h>
#elif defined(__linux__)
# include <sys/types.h>
# include <unistd.h>
# include <fcntl.h>
# include <sys/ioctl.h>
# include <sys/mount.h>
# include <linux/cdrom.h>
# include <scsi/scsi.h>
# include <scsi/sg.h>
# include <scsi/scsi_ioctl.h>
#elif defined (HAVE_DVD_H)
# include <unistd.h>
# include <fcntl.h>
# include <dvd.h>
#endif
#if defined(__linux__)
/**
* \brief Ejects the CD /DVD using SCSI commands
* \ingroup vlc_interface
* This function is local
* \param i_fd a device nummber
* \return 0 on success, VLC_EGENERIC on failure
*/
static int EjectSCSI( int i_fd )
{
struct sdata
{
int inlen;
int outlen;
char cmd[256];
} scsi_cmd;
scsi_cmd.inlen = 0;
scsi_cmd.outlen = 0;
scsi_cmd.cmd[0] = ALLOW_MEDIUM_REMOVAL;
scsi_cmd.cmd[1] = 0;
scsi_cmd.cmd[2] = 0;
scsi_cmd.cmd[3] = 0;
scsi_cmd.cmd[4] = 0;
scsi_cmd.cmd[5] = 0;
if( ioctl( i_fd, SCSI_IOCTL_SEND_COMMAND, (void *)&scsi_cmd ) < 0 )
return VLC_EGENERIC;
scsi_cmd.inlen = 0;
scsi_cmd.outlen = 0;
scsi_cmd.cmd[0] = START_STOP;
scsi_cmd.cmd[1] = 0;
scsi_cmd.cmd[2] = 0;
scsi_cmd.cmd[3] = 0;
scsi_cmd.cmd[4] = 1;
scsi_cmd.cmd[5] = 0;
if( ioctl( i_fd, SCSI_IOCTL_SEND_COMMAND, (void *)&scsi_cmd ) < 0 )
return VLC_EGENERIC;
scsi_cmd.inlen = 0;
scsi_cmd.outlen = 0;
scsi_cmd.cmd[0] = START_STOP;
scsi_cmd.cmd[1] = 0;
scsi_cmd.cmd[2] = 0;
scsi_cmd.cmd[3] = 0;
scsi_cmd.cmd[4] = 2;
scsi_cmd.cmd[5] = 0;
if( ioctl( i_fd, SCSI_IOCTL_SEND_COMMAND, (void *)&scsi_cmd ) < 0 )
return VLC_EGENERIC;
/* Force kernel to reread partition table when new disc inserted */
ioctl( i_fd, BLKRRPART );
return VLC_SUCCESS;
}
#endif
#undef intf_Eject
/**
* Ejects the optical disc in a device
* \param p_this the calling vlc_object_t
* \param psz_device the CD/DVD to eject
* \return VLC_SUCCESS or VLC_EGENERIC
*/
static int intf_Eject( vlc_object_t *p_this, const char *psz_device )
{
VLC_UNUSED(p_this);
#if defined(_WIN32)
MCI_OPEN_PARMS op;
DWORD i_flags;
TCHAR psz_drive[4];
memset( &op, 0, sizeof(MCI_OPEN_PARMS) );
op.lpstrDeviceType = (LPCTSTR)MCI_DEVTYPE_CD_AUDIO;
_tcscpy( psz_drive, TEXT("X:") );
psz_drive[0] = psz_device[0];
op.lpstrElementName = psz_drive;
/* Set the flags for the device type */
i_flags = MCI_OPEN_TYPE | MCI_OPEN_TYPE_ID |
MCI_OPEN_ELEMENT | MCI_OPEN_SHAREABLE;
if( mciSendCommand( 0, MCI_OPEN, i_flags, (uintptr_t)&op ) )
return VLC_EGENERIC;
/* Eject disc */
mciSendCommand( op.wDeviceID, MCI_SET, MCI_SET_DOOR_OPEN, 0 );
/* Release access to the device */
mciSendCommand( op.wDeviceID, MCI_CLOSE, MCI_WAIT, 0 );
return VLC_SUCCESS;
#elif defined (__linux__) || defined (HAVE_DVD_H)
/* This code could be extended to support CD/DVD-ROM chargers */
int fd = vlc_open( psz_device, O_RDONLY | O_NONBLOCK );
if( fd == -1 )
{
msg_Err( p_this, "could not open device %s", psz_device );
return VLC_EGENERIC;
}
# if defined(__linux__)
/* Try a simple ATAPI eject */
if( ioctl( fd, CDROMEJECT, 0 ) < 0
&& EjectSCSI( fd ) )
# else
if( ioctl( fd, CDROMEJECT, 0 ) < 0 )
# endif
{
msg_Err( p_this, "could not eject %s", psz_device );
close( fd );
return VLC_EGENERIC;
}
close( fd );
return VLC_SUCCESS;
#else
VLC_UNUSED( psz_device );
msg_Warn( p_this, "CD-Rom ejection unsupported on this platform" );
return VLC_EGENERIC;
#endif
}
#define intf_Eject(o, p) intf_Eject(VLC_OBJECT(o), p)
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