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3a2f7427fe
date: 1994/05/22 12:35:38; author: joerg; state: Exp; lines: +6 -6
First round of floppy changes. Try making `fd' more robust.
New features:
. ioctl command for setting the drive type (density etc.); restricted
to the super-user
. ioctl for getting/seting `drive options'; currently only option
is FDOPT_NORETRY: inhibit the usual retries; used when verifying
a newly formatted track
Fixes:
. function prototypes
. made all internal functions `static'
. cleaned up & corrected .h files
. restructured, to make the chaotic function sequence more rational
. compiled with -Wall, and cleared all warnings
. introduced a mirror for the (write-only) `digital output register',
to avoid the current kludge
. device probing completed by seeking/recalibrating, and looking
for track 0 being found
. holding the controller down in reset state while it is idle (and
thus saving allot of headaches)
. make requests fail that are not a multiple of the (physical)
sector size
. removed the fixed physical sector size (512 bytes), allowing for any
size the controller could handle (128/256/512/1024 bytes)
. replaced some silly messages
. fixed the TRACE* macro usage, debugging reports should be complete
now again (debugging output is HUGE! though)
. removed fd_timeout for SEEK command; seeks are always reported by
the controller to succeed, since the `success' only refers to the
controller's idea of success - there is no hardware line to tell about
the seek end (other than the `track 0' line)
. catch SENSEI's that report about a `terminated due to READY changed'
status - could happen after a controller reset
. converted ``hz / <something>'' divide operations to divisors that are
powers of two, so gcc can optimize them into shifts
. write/format operations are checked against a write-protected medium
now *prior* starting the operation
. error reports of `invalid command' and `wrong cylinder' will cause
shortcuts in the retrier() now
. fixed a bug in the retrier() causing bogus block numbers to be reported
. fdformat() does care for errors now
Known Bugs:
. no attempts have been made (yet) to improve the performance
. sometimes, bogus ``seek/recalib failed'' messages are logged; this
is still a bug in the driver, but it's not harmful since it's
usually caught by the retrier()
Reviewed by:
Submitted by:
Obtained from:
|
||
|---|---|---|
| .. | ||
| ic | ||
| sound | ||
| aha1542.c | ||
| aha1742.c | ||
| bt742a.c | ||
| clock.c | ||
| elink.c | ||
| elink.h | ||
| fd.c | ||
| fdc.h | ||
| fdreg.h | ||
| ft.c | ||
| ftreg.h | ||
| icu.h | ||
| icu.s | ||
| if_ed.c | ||
| if_edreg.h | ||
| if_el.c | ||
| if_elreg.h | ||
| if_ep.c | ||
| if_epreg.h | ||
| if_ie507.h | ||
| if_ie.c | ||
| if_iereg.h | ||
| if_is.c | ||
| if_isreg.h | ||
| if_le.c | ||
| if_ze.c | ||
| if_zereg.h | ||
| isa_device.h | ||
| isa.c | ||
| isa.h | ||
| iso8859.font | ||
| kbd.h | ||
| kbdtables.h | ||
| lpt.c | ||
| lptreg.h | ||
| mcd.c | ||
| mcdreg.h | ||
| mse.c | ||
| npx.c | ||
| pas.c | ||
| pcaudio.c | ||
| psm.c | ||
| rtc.h | ||
| sio.c | ||
| sioreg.h | ||
| spkr.c | ||
| syscons.c | ||
| timerreg.h | ||
| ultra14f.c | ||
| vector.s | ||
| wd.c | ||
| wdreg.h | ||
| wt.c | ||
| wtreg.h | ||