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+/*
+ * Many thanks to Lode Leroy <Lode.Leroy@www.ibase.be>, who tested so many
+ * ALPHA patches to this driver on an EASYSTOR LS-120 ATAPI floppy drive.
+ *
+ * Ver 0.1 Oct 17 96 Initial test version, mostly based on ide-tape.c.
+ * Ver 0.2 Oct 31 96 Minor changes.
+ * Ver 0.3 Dec 2 96 Fixed error recovery bug.
+ * Ver 0.4 Jan 26 97 Add support for the HDIO_GETGEO ioctl.
+ * Ver 0.5 Feb 21 97 Add partitions support.
+ * Use the minimum of the LBA and CHS capacities.
+ * Avoid hwgroup->rq == NULL on the last irq.
+ * Fix potential null dereferencing with DEBUG_LOG.
+ * Ver 0.8 Dec 7 97 Increase irq timeout from 10 to 50 seconds.
+ * Add media write-protect detection.
+ * Issue START command only if TEST UNIT READY fails.
+ * Add work-around for IOMEGA ZIP revision 21.D.
+ * Remove idefloppy_get_capabilities().
+ * Ver 0.9 Jul 4 99 Fix a bug which might have caused the number of
+ * bytes requested on each interrupt to be zero.
+ * Thanks to <shanos@es.co.nz> for pointing this out.
+ * Ver 0.9.sv Jan 6 01 Sam Varshavchik <mrsam@courier-mta.com>
+ * Implement low level formatting. Reimplemented
+ * IDEFLOPPY_CAPABILITIES_PAGE, since we need the srfp
+ * bit. My LS-120 drive barfs on
+ * IDEFLOPPY_CAPABILITIES_PAGE, but maybe it's just me.
+ * Compromise by not reporting a failure to get this
+ * mode page. Implemented four IOCTLs in order to
+ * implement formatting. IOCTls begin with 0x4600,
+ * 0x46 is 'F' as in Format.
+ * Jan 9 01 Userland option to select format verify.
+ * Added PC_SUPPRESS_ERROR flag - some idefloppy drives
+ * do not implement IDEFLOPPY_CAPABILITIES_PAGE, and
+ * return a sense error. Suppress error reporting in
+ * this particular case in order to avoid spurious
+ * errors in syslog. The culprit is
+ * idefloppy_get_capability_page(), so move it to
+ * idefloppy_begin_format() so that it's not used
+ * unless absolutely necessary.
+ * If drive does not support format progress indication
+ * monitor the dsc bit in the status register.
+ * Also, O_NDELAY on open will allow the device to be
+ * opened without a disk available. This can be used to
+ * open an unformatted disk, or get the device capacity.
+ * Ver 0.91 Dec 11 99 Added IOMEGA Clik! drive support by
+ * <paul@paulbristow.net>
+ * Ver 0.92 Oct 22 00 Paul Bristow became official maintainer for this
+ * driver. Included Powerbook internal zip kludge.
+ * Ver 0.93 Oct 24 00 Fixed bugs for Clik! drive
+ * no disk on insert and disk change now works
+ * Ver 0.94 Oct 27 00 Tidied up to remove strstr(Clik) everywhere
+ * Ver 0.95 Nov 7 00 Brought across to kernel 2.4
+ * Ver 0.96 Jan 7 01 Actually in line with release version of 2.4.0
+ * including set_bit patch from Rusty Russell
+ * Ver 0.97 Jul 22 01 Merge 0.91-0.96 onto 0.9.sv for ac series
+ * Ver 0.97.sv Aug 3 01 Backported from 2.4.7-ac3
+ * Ver 0.98 Oct 26 01 Split idefloppy_transfer_pc into two pieces to
+ * fix a lost interrupt problem. It appears the busy
+ * bit was being deasserted by my IOMEGA ATAPI ZIP 100
+ * drive before the drive was actually ready.
+ * Ver 0.98a Oct 29 01 Expose delay value so we can play.
+ * Ver 0.99 Feb 24 02 Remove duplicate code, modify clik! detection code
+ * to support new PocketZip drives
+ */