99 lines
2.7 KiB
Python
99 lines
2.7 KiB
Python
# -*- Mode: Python; test-case-name: whipper.test.test_common_drive -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# Copyright (C) 2009 Thomas Vander Stichele
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# This file is part of whipper.
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#
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# whipper is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# whipper is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with whipper. If not, see <http://www.gnu.org/licenses/>.
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import os
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from fcntl import ioctl
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import logging
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logger = logging.getLogger(__name__)
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def _listify(listOrString):
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if isinstance(listOrString, str):
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return [listOrString, ]
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return listOrString
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def getAllDevicePaths():
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try:
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# see https://savannah.gnu.org/bugs/index.php?38477
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return [str(dev) for dev in _getAllDevicePathsPyCdio()]
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except ImportError:
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logger.info('cannot import pycdio')
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return _getAllDevicePathsStatic()
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def _getAllDevicePathsPyCdio():
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import pycdio
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import cdio
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# using FS_AUDIO here only makes it list the drive when an audio cd
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# is inserted
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# ticket 102: this cdio call returns a list of str, or a single str
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return _listify(cdio.get_devices_with_cap(pycdio.FS_MATCH_ALL, False))
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def _getAllDevicePathsStatic():
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ret = []
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for c in ['/dev/cdrom', '/dev/cdrecorder']:
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if os.path.exists(c):
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ret.append(c)
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return ret
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def getDeviceInfo(path):
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try:
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import cdio
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except ImportError:
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return None
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device = cdio.Device(path)
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_, vendor, model, release = device.get_hwinfo()
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return vendor, model, release
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def get_cdrom_drive_status(drive_path):
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"""
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Get the status of the disc drive.
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Drive status possibilities returned by CDROM_DRIVE_STATUS ioctl:
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- CDS_NO_INFO = 0 (if not implemented)
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- CDS_NO_DISC = 1
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- CDS_TRAY_OPEN = 2
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- CDS_DRIVE_NOT_READY = 3
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- CDS_DISC_OK = 4
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Documentation here:
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- https://www.kernel.org/doc/Documentation/ioctl/cdrom.txt
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- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/cdrom.h # noqa: E501
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:param drive_path: path to the disc drive
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:type device: str
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:returns: return code of the 'CDROM_DRIVE_STATUS' ioctl
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:rtype: int
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"""
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fd = os.open(drive_path, os.O_RDONLY | os.O_NONBLOCK)
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rc = ioctl(fd, 0x5326) # AKA 'CDROM_DRIVE_STATUS'
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os.close(fd)
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return rc
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