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author | dg <dg@FreeBSD.org> | 1994-09-17 16:56:10 +0000 |
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committer | dg <dg@FreeBSD.org> | 1994-09-17 16:56:10 +0000 |
commit | 0285e6bafcab4b972c40c1d78ac266295dc5d80f (patch) | |
tree | 04e7afb126a8687648474c1e093925c58ebecf67 /sys/isa/fdc.h | |
parent | 2097dca3f5f4524ecf441dae533fcf5ee46c98c2 (diff) | |
download | FreeBSD-src-0285e6bafcab4b972c40c1d78ac266295dc5d80f.zip FreeBSD-src-0285e6bafcab4b972c40c1d78ac266295dc5d80f.tar.gz |
Updated driver to the 1.1.5 version:
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:
Diffstat (limited to 'sys/isa/fdc.h')
-rw-r--r-- | sys/isa/fdc.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/sys/isa/fdc.h b/sys/isa/fdc.h index 1542f0e..c938eb4 100644 --- a/sys/isa/fdc.h +++ b/sys/isa/fdc.h @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)fd.c 7.4 (Berkeley) 5/25/91 - * $Id:$ + * $Id: fdc.h,v 1.2 1994/02/14 22:24:25 nate Exp $ * */ @@ -49,12 +49,12 @@ struct fdc_data #define FDC_HASFTAPE 0x02 #define FDC_TAPE_BUSY 0x04 struct fd_data *fd; - int fdu; /* the active drive */ + int fdu; /* the active drive */ + int state; + int retry; + int fdout; /* mirror of the w/o digital output reg */ + int status[7]; /* copy of the registers */ struct buf head; /* Head of buf chain */ - struct buf rhead; /* Raw head of buf chain */ - int state; - int retry; - int status[7]; /* copy of the registers */ }; /***********************************************************************\ |