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+# greaseweazle/tools/clean.py
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+#
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+# Greaseweazle control script: Scrub drive heads with a cleaning disk.
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+#
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+# Uses a zig-zag pattern, after Dave Dunfield's ImageDisk and
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+# Phil Pemberton's Magpie/DiscFerret.
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+#
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+# Written & released by Keir Fraser <keir.xen@gmail.com>
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+#
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+# This is free and unencumbered software released into the public domain.
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+# See the file COPYING for more details, or visit <http://unlicense.org>.
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+
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+description = "Clean a drive in a zig-zag pattern using a cleaning disk."
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+
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+import sys, time
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+
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+from greaseweazle.tools import util
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+from greaseweazle import usb as USB
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+
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+def seek(cyl, usb, args):
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+ c = min(cyl, args.cyls - 1)
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+ print("%d " % c, end='', flush=True)
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+ usb.seek(c, 0)
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+
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+def clean(usb, args):
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+ step = max(args.cyls // 8, 2)
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+ for p in range(args.passes):
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+ print('Pass %d: ' % p, end='', flush=True)
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+ for cyl in range(0, args.cyls, step):
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+ seek(cyl + step - 1, usb, args)
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+ time.sleep(args.linger / 1000)
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+ seek(cyl, usb, args)
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+ time.sleep(args.linger / 1000)
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+ print()
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+
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+def main(argv):
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+
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+ parser = util.ArgumentParser(usage='%(prog)s [options]')
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+ parser.add_argument("--device", help="greaseweazle device name")
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+ parser.add_argument("--drive", type=util.drive_letter, default='A',
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+ help="drive to write (A,B,0,1,2)")
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+ parser.add_argument("--cyls", type=int, default=80,
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+ help="number of drive cylinders")
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+ parser.add_argument("--passes", type=int, default=3,
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+ help="number of passes across the cleaning disk")
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+ parser.add_argument("--linger", type=int, default=100,
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+ help="linger time per step, milliseconds")
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+ parser.description = description
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+ parser.prog += ' ' + argv[1]
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+ args = parser.parse_args(argv[2:])
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+
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+ try:
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+ usb = util.usb_open(args.device)
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+ util.with_drive_selected(clean, usb, args)
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+ except USB.CmdError as error:
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+ print("Command Failed: %s" % error)
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+
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+
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+if __name__ == "__main__":
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+ main(sys.argv)
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+
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+# Local variables:
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+# python-indent: 4
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+# End:
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Keir Fraser