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