Commit Graph

224 Commits

Author SHA1 Message Date
Peter Wemm
b9da888fcb Make the evil broken pnpbios compensation slightly less evil.
This is the hack that compensates for when bios vendors "forget" to
include the fdc control (0x3f7) port in their io port mappings.  Instead
of accessing ports outside of a range allocated to a handle, simply
allocate the port directly.  It even shows up in the probe..
2000-01-05 17:42:43 +00:00
Peter Wemm
37286586ff Patch up some of the evilness left over from the early newbus porting.
In particular:
 - Don't leave resources allocated in the probe routine.  Allocate them
   during probe and release them.  Probe's job is to identify devices only.
 - Don't abuse the ivars pointer.. (!).  Create real ivars and use the
   proper access system.  (the bus_read_ivar method)
 - Don't add the children until attach() has successfully grabbed the
   hardware, otherwise there are potential leaks if attach fails.
2000-01-05 16:31:27 +00:00
KATO Takenori
6fb89845b4 Added following modes:
5in     HD 2 heads, 77 cylinders, 8 sectors/track, 1024 bytes/sector
 5/3.5in DD 2 heads, 80 cylinders, 8 sectors/track, 512 bytes/sector

Meanings of the rogrammer-readeble fd name were explained by Brian
Fundakowski Feldman and Peter Wemm in hackers list and NOKUBI
Hirotaka.

Reviewed by:	nyan
1999-12-28 07:38:38 +00:00
Joerg Wunsch
e34c71ea40 Add a flag to disable FIFO probing. The code seems to have a chance of
misdetecting FIFO capabilities, at least on my girlfriend's Thinkpad 755,
the driver doesn't work using the FIFO.

While i was at it, i (partially) fixed option FCC_YE since it would no
longer have compiled at all under -current.  I've also made an attempt
to document the device driver flags value (ab-)used internally by this
option.

RELENG_3 candidate, but with a slightly different patch there (will go
to jkh in email).
1999-12-21 08:33:03 +00:00
Peter Wemm
a2639a184d Add a truely evil workaround (hack!) for some unfortunate BIOS
programming practices.  It seems that newer fdc chips have an
alternative way of setting the transfer speed (including high speed
modes for floppy tape) that doesn't use the control register (which
we don't support - we use the old way only).  So, they (the BIOS
programmers) sometimes leave out the 0x3f6 control register from
the PnP ports descriptor(!!).  "Hey, it works with windows, so
what's the problem?" :-(  Anyway, this hack tries to compensate
for that.  This was discussed with dfr (who did the pnp attachment).
1999-12-06 06:59:09 +00:00
Matthew N. Dodd
fe0d408987 Remove the 'ivars' arguement to device_add_child() and
device_add_child_ordered().  'ivars' may now be set using the
device_set_ivars() function.

This makes it easier for us to change how arbitrary data structures are
associated with a device_t.  Eventually we won't be modifying device_t
to add additional pointers for ivars, softc data etc.

Despite my best efforts I've probably forgotten something so let me know
if this breaks anything.  I've been running with this change for months
and its been quite involved actually isolating all the changes from
the rest of the local changes in my tree.

Reviewed by:	peter, dfr
1999-12-03 08:41:24 +00:00
Peter Wemm
8de0675c61 Tidy up a few loose ends in the fifo setup code.
Don't use NFDC as an arbitary limit, it is not required and goes against
using PnP fdc devices (eg: when PNPBIOS is turned on, the motherboard
devices (sio, fdc, etc etc) are detected via PnP, not config(8).)
1999-11-18 05:15:09 +00:00
Doug Rabson
427ccf0071 Add code to support ISA PnP. 1999-11-11 08:48:40 +00:00
Peter Wemm
475ad603bb Use cdevsw_add() (temporarily) to avoid DEV_DRIVER_MODULE(), since the
make_dev()'s that are there are not enough.
1999-11-08 07:32:06 +00:00
Poul-Henning Kamp
d6a0e38a1b Remove five now unused fields from struct cdevsw. They should never
have been there in the first place.  A GENERIC kernel shrinks almost 1k.

Add a slightly different safetybelt under nostop for tty drivers.

Add some missing FreeBSD tags
1999-09-25 18:24:47 +00:00
Poul-Henning Kamp
11a0be87e3 Two more devstat_end_transaction() -> devstat_end_transaction_buf(). 1999-09-19 12:43:34 +00:00
Poul-Henning Kamp
2186cd9e8d Use devstat_end_transaction_buf() rather than Use devstat_end_transaction() 1999-09-18 21:30:27 +00:00
Bruce Evans
887ba12fc5 Removed diskerr()'s unused d_name arg and updated callers. This fixes
warnings caused by the arg having the wrong type (not const enough).
The arg was also wrong (a full name instead of a short one) for calls
from from subr_diskmbr.c and pc98/diskslice_machdep.c.
1999-09-13 12:59:41 +00:00
Julian Elischer
85a219d201 Changes to centralise the default blocksize behaviour.
More likely to follow.

Submitted by: phk@freebsd.org
1999-09-09 19:08:44 +00:00
Doug Rabson
062acdb7e7 Change isa_get/set_flags() to device_get/set_flags(). 1999-09-07 08:42:49 +00:00
Peter Wemm
16e68fc605 Cosmetic tweak. Collect the fdc methods together and apart from the fd
methods so it's a little easier to seperate the two when reading the code.
1999-09-03 11:32:21 +00:00
Julian Elischer
7012bab988 Revert a bunch of contraversial changes by PHK. After
a quick think and discussion among various people some form of some of
these changes will probably be recommitted.

The reversion requested was requested by dg while discussions proceed.
PHK has indicated that he can live with this, and it has been agreed
that some form of some of these changes may return shortly after further
discussion.
1999-09-03 05:16:59 +00:00
Poul-Henning Kamp
02e1576966 Make bdev userland access work like cdev userland access unless
the highly non-recommended option ALLOW_BDEV_ACCESS is used.

(bdev access is evil because you don't get write errors reported.)

Kill si_bsize_best before it kills Matt :-)

Use the specfs routines rather having cloned copies in devfs.
1999-08-30 07:56:23 +00:00
Poul-Henning Kamp
9465bf4495 Initialize dev->si_bsize*, the floppy driver doesn't use dsopen(). 1999-08-28 08:10:13 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Julian Elischer
ada9bd8cb8 Add PHK's make_dev() into more places where DEVFS used to be
hooked in directly.

Alpha change checked by: Matthew Jacob <mjacob@feral.com>
i4b ISDN changes checked by: Udo Schweigert <ust@cert.siemens.de>
    and Hellmuth Michaelis <hm@hcs.de>
PC98 changes checked by: Takahashi Yoshihiro <nyan@FreeBSD.org>
1999-08-27 07:26:26 +00:00
Poul-Henning Kamp
9dcbe2404a Convert DEVFS hooks in (most) drivers to make_dev().
Diskslice/label code not yet handled.

Vinum, i4b, alpha, pc98 not dealt with (left to respective Maintainers)

Add the correct hook for devfs to kern_conf.c

The net result of this excercise is that a lot less files depends on DEVFS,
and devtoname() gets more sensible output in many cases.

A few drivers had minor additional cleanups performed relating to cdevsw
registration.

A few drivers don't register a cdevsw{} anymore, but only use make_dev().
1999-08-23 20:59:21 +00:00
Poul-Henning Kamp
49ff4debd3 Spring cleaning around strategy and disklabels/slices:
Introduce BUF_STRATEGY(struct buf *, int flag) macro, and use it throughout.
please see comment in sys/conf.h about the flag argument.

Remove strategy argument from all the diskslice/label/bad144
implementations, it should be found from the dev_t.

Remove bogus and unused strategy1 routines.

Remove open/close arguments from dssize().  Pick them up from dev_t.

Remove unused and unfinished setgeom support from diskslice/label/bad144 code.
1999-08-14 11:40:51 +00:00
Joerg Wunsch
25d01e9527 Revert rev 1.149. Bruce convinced me that the problem already disappeared
by the fix in rev 1.120, which i wasn't immediately aware of.
1999-07-29 11:27:33 +00:00
Matthew N. Dodd
15317dd875 Alter the behavior of sys/kern/subr_bus.c:device_print_child()
- device_print_child() either lets the BUS_PRINT_CHILD
	  method produce the entire device announcement message or
	  it prints "foo0: not found\n"

Alter sys/kern/subr_bus.c:bus_generic_print_child() to take on
the previous behavior of device_print_child() (printing the
"foo0: <FooDevice 1.1>" bit of the announce message.)

Provide bus_print_child_header() and bus_print_child_footer()
to actually print the output for bus_generic_print_child().
These functions should be used whenever possible (unless you can
just use bus_generic_print_child())

The BUS_PRINT_CHILD method now returns int instead of void.

Modify everything else that defines or uses a BUS_PRINT_CHILD
method to comply with the above changes.

	- Devices are 'on' a bus, not 'at' it.
	- If a custom BUS_PRINT_CHILD method does the same thing
	  as bus_generic_print_child(), use bus_generic_print_child()
	- Use device_get_nameunit() instead of both
	  device_get_name() and device_get_unit()
	- All BUS_PRINT_CHILD methods return the number of
	  characters output.

Reviewed by: dfr, peter
1999-07-29 01:03:04 +00:00
Joerg Wunsch
409aadb1c9 Hack to work around a NULL pointer dereferencation that can be triggered
by removing a floppy that as being operated on.

The spagghetti is hardly understandable at all anymore, so i can't
100 % ascertain this is really the Right Thing to do, maybe our new
floppy driver maintainer, Jesus Monroy Jr can do this. :-))
1999-07-21 12:19:44 +00:00
Poul-Henning Kamp
03016f421b Remove cmaj and bmaj args from DEV_DRIVER_MODULE. 1999-07-04 14:58:56 +00:00
Kirk McKusick
67812eacd7 Convert buffer locking from using the B_BUSY and B_WANTED flags to using
lockmgr locks. This commit should be functionally equivalent to the old
semantics. That is, all buffer locking is done with LK_EXCLUSIVE
requests. Changes to take advantage of LK_SHARED and LK_RECURSIVE will
be done in future commits.
1999-06-26 02:47:16 +00:00
Doug Rabson
a97c75b7ea * Change include file locations.
* Fix some misunderstandings about the return value of resource_int_value().
* Make it build on alpha (doesn't work yet...)
1999-05-31 18:39:17 +00:00
Poul-Henning Kamp
4e2f199e0c This commit should be a extensive NO-OP:
Reformat and initialize correctly all "struct cdevsw".

        Initialize the d_maj and d_bmaj fields.

        The d_reset field was not removed, although it is never used.

I used a program to do most of this, so all the files now use the
same consistent format.  Please keep it that way.

Vinum and i4b not modified, patches emailed to respective authors.
1999-05-30 16:53:49 +00:00
Doug Rabson
f7f2df54bb No support for pnp yet. 1999-05-30 11:12:30 +00:00
Bruce Evans
f86e40770a Fixed reset handling for motor off resets. I first fixed this together
with other reset handling in rev.1.83 but broke it in rev.1.120.  The
breakage didn't seem to cause any problems even on the system which had
problems ("extra" interrupts and botched handling thereof) before rev.1.83.
It only affects multi-floppy systems anyway.
1999-05-11 04:58:30 +00:00
Doug Rabson
566643e39e Move the declaration of the interrupt type from the driver structure
to the BUS_SETUP_INTR call.
1999-05-08 21:59:43 +00:00
Peter Wemm
4fdff1649a GC unused #define id_physid id_scsiid 1999-05-08 18:13:15 +00:00
Poul-Henning Kamp
46eede0058 Continue where Julian left off in July 1998:
Virtualize bdevsw[] from cdevsw.  bdevsw() is now an (inline)
        function.

        Join CDEV_MODULE and BDEV_MODULE to DEV_MODULE (please pay attention
        to the order of the cmaj/bmaj arguments!)

        Join CDEV_DRIVER_MODULE and BDEV_DRIVER_MODULE to DEV_DRIVER_MODULE
        (ditto!)

(Next step will be to convert all bdev dev_t's to cdev dev_t's
before they get to do any damage^H^H^H^H^H^Hwork in the kernel.)
1999-05-07 10:11:40 +00:00
Poul-Henning Kamp
c48d17750f Introduce two functions: physread() and physwrite() and use these directly
in *devsw[] rather than the 46 local copies of the same functions.

(grog will do the same for vinum when he has time)
1999-05-07 07:03:47 +00:00
Poul-Henning Kamp
b0eeea2042 remove b_proc from struct buf, it's (now) unused.
Reviewed by:	dillon, bde
1999-05-06 20:00:34 +00:00
Peter Wemm
edfdec1910 Disable FDC_YE - it's broken at present (breaking LINT) and awaiting some
pccard fixups.
Make DEVFS compile, it breaks LINT.
1999-05-02 20:38:08 +00:00
Poul-Henning Kamp
f711d546d2 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
Peter Wemm
6182fdbda8 Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core
1999-04-16 21:22:55 +00:00
Peter Wemm
2ada239c12 Use reference counted PHOLD/PRELE rather than the P_PHYSIO flag. 1999-04-06 03:06:51 +00:00
Kenneth D. Merry
2a888f938e Add a prioritization field to the devstat_add_entry() call so that
peripheral drivers can determine where in the devstat(9) list they are
inserted.

This requires recompilation of libdevstat, systat, vmstat, rpc.rstatd, and
any ports that depend on the devstat code, since the size of the devstat
structure has changed.  The devstat version number has been incremented as
well to reflect the change.

This sorts devices in the devstat list in "more interesting" to "less
interesting" order.  So, for instance, da devices are now more important
than floppy drives, and so will appear before floppy drives in the default
output from systat, iostat, vmstat, etc.

The order of devices is, for now, kept in a central table in devicestat.h.
If individual drivers were able to make a meaningful decision on what
priority they should be at attach time, we could consider splitting the
priority information out into the various drivers.  For now, though, they
have no way of knowing that, so it's easier to put them in an easy to find
table.

Also, move the checkversion() call in vmstat(8) to a more logical place.

Thanks to Bruce and David O'Brien for suggestions, for reviewing this, and
for putting up with the long time it has taken me to commit it.  Bruce did
object somewhat to the central priority table (he would rather the
priorities be distributed in each driver), so his objection is duly noted
here.

Reviewed by:	bde, obrien
1999-02-10 00:04:13 +00:00
Peter Wemm
d17e4ee67d Update the pccard hooks to use a module style declaration instead. 1999-01-19 00:21:53 +00:00
Bruce Evans
e93e63cb39 Fixed corruption of the fd buffer queue. Once upon a time, the active
buffer had to be left on the head of the queue for [bufq]disksort()
to sort against.  This isn't right for devices that can support multiple
active i/o's, and only the fd driver did it.  "Fixing" this in rev.1.36
of ufs_disksubr.c broke the fd driver in much the same way as rev.1.52
of <sys/buf.h> broke it (see rev.1.119).

Bug reported and fix tested by:	dt
1999-01-15 09:15:27 +00:00
Poul-Henning Kamp
fc47545ec3 Pre 3.0 branch cleanup casualty #6: ft 1998-12-27 13:40:57 +00:00
Bruce Evans
ff9607b070 Fixed LINT breakage in previous commit. Option FDC_YE enabled a
syntax error.  Options FDC_YE and DEVFS together enabled references
to a nonexistent variable and calls of a nonexistent function.
1998-12-14 16:29:58 +00:00
Warner Losh
69acd21dfd Add support for the YE-Data external PCMCIA floppy driver. This
floppy is used on the toshiba Libretto line of subnotebook computers.
It differs from a normal floppy in that you must use PIO rather than
DMA to transfer the data.

To enable this, you must add options "FDC_YE" to your kernel.  I don't
have a machine that has a floppy and a pcmcia slot to test to make
sure that this doesn't impact normal floppy units, so I've left this as
an option.

I have ported this to -current and made an attempt to ensure that the
indentation conforms to style(9), aka the bruce filter.

Reviewed by:	nate, markm
Submitted by:	David Horwitt (dhorwitt@ucsd.edu)
1998-12-12 08:16:01 +00:00
Eivind Eklund
2ae353f9a7 Rename one of the two devfs_link's to devfs_makelink. 1998-12-10 19:57:01 +00:00
Archie Cobbs
f1d19042b0 The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
1998-12-07 21:58:50 +00:00
Archie Cobbs
2127f26023 Examine all occurrences of sprintf(), strcat(), and str[n]cpy()
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.

These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.

Reviewed by:	Bruce Evans <bde@zeta.org.au>
Reviewed by:	Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by:	Mike Spengler <mks@networkcs.com>
1998-12-04 22:54:57 +00:00
Bruce Evans
fe310de802 Initialize isa_devtab entries for interrupt handlers in individual
device drivers, not in ioconf.c.  Use a different hack in isa_device.h
so that a new config(8) is not required yet.

pc98 parts approved by: kato
1998-10-22 05:58:45 +00:00
Justin T. Gibbs
9f02ad6073 Nuke uninitialized varible fd from retrier(). Change the devstat code
to reference fdc->fd instead.
1998-09-15 22:07:24 +00:00
Justin T. Gibbs
b2dfb1f906 Update system to new device statistics code.
Submitted by:	"Kenneth D. Merry" <ken@plutotech.com>
		mike@smith.net.au (Mike Smith)
1998-09-15 08:15:30 +00:00
Søren Schmidt
d024c95599 Remove the SLICE code.
This clearly needs alot more thought, and we dont need this to hunt
us down in 3.0-RELEASE.
1998-09-14 19:56:42 +00:00
Bruce Evans
5c1a1eae83 Fixed error handling:
- Call isa_dmadone() whenever necessary to stop DMA and/or free bounce
  buffers.  Undead DMA corrupted the malloc freelist fairly consistently
  in the following configuration: SLICE kernel, 2 floppy drives, no disk
  in fd0, disk in fd1.
- Don't call fdc_reset() from fd_timeout().  Doing so gave an "extra"
  interrupt which was usually misinterpreted as being for completion
  of the next FDC command; the interrupt for completion of the next
  FDC command was then usually misinterpreted...  There were further
  complications for interrupts latched by the soft-spl mechanism so
  that they were delivered after all the h/w interrupts went away.
  This caused at least wrong head settle delays and may be why the
  FreeBSD floppy driver seems to munch floppies more than most floppy
  drivers.  The reset was unnecessary anyway in cases that didn't have
  the bug described next, since is was repeated a little later for
  the IOTIMEDOUT state.  The state machine has complications to handle
  resets correctly, so just use it.
- Don't call retrier() from fd_timeout().  The IOTIMEDOUT state needs
  to be processed next, and it isn't valid to set to that state if
  retrier() has aborted the current transfer.  Doing so caused null
  pointer panics after the previous bug was fixed.

Improved error handling:
- If an i/o is aborted, arrange to reset in the state machine before
  doing the next i/o.  New fdc flag for this.  This fixes spurious
  warnings and lengthy busy-waiting for the next i/o.
- Split STARTRECAL into RESETCOMPLETE and STARTRECAL and only check
  for the results from reset if we actually reset.  This fixes spurious
  warnings for other paths to STARTRECAL.  [Oops, it may break reset
  handling for motor-off resets.]

Cleanups in fd_timeout():
- Renamed to fd_iotimeout() to make it clearer that it is only used
  for i/o.
- Don't handle the bp == 0 case.  This case can't happen for i/o.
- Don't check for controller-busy.  We know it must be.
- Don't print anything.  retrier() already prints too much for normal
  errors.
- Fudge the state differently so that the state machine advances
  fdc->retry and the status is invalid (perhaps this should fudge a
  valid state like the one for WP).
- Style fixes.
1998-07-29 13:00:42 +00:00
Bruce Evans
e5d7d24361 Fixed error handling after a seek error that can't happen. When the
controller reports a successful seek, it is very unlikely to report
seeking to a cylinder other than the one requested, but we check for
this, and botched the error handling for the requested_cylinder != 0
case.  This error happened when the bug fixed in rev.1.52 of <sys/buf.h>
caused the head of buffer queue to change to one starting on a different
cylnder - the requested cylinder was found, but it wasn't what we
thought we requested.  The fix is simply to arrange to reset the state
machine.

Corruption of the buffer queue seems to only have been a problem in the
floppy driver.  Other drivers dequeue the head of the queue before doing
physical i/o on it, so the corruption at worse broke the elevator sort
order.  Dequeueing breaks it anyway.
1998-07-18 03:15:33 +00:00
Bruce Evans
29d6b96d69 The ioctl request arg is unsigned long, so don't attempt to pass it
around as signed int.
1998-07-15 09:59:31 +00:00
Julian Elischer
ad27f8d9a5 SLICE probing becomes asynchronous. It can now be triggered by
interupt level events. This needs a lot of cleanup, but has been working
here for a month or two.. originally needed for CAM integration
but that hasn't happenned yet. The probing  state machines for each
handler should be replaced by a more generic state-service. It's
still quite messy in there..
1998-07-13 08:23:05 +00:00
Bruce Evans
a838d83d8f Don't pretend to support ix86's with 7-bit ints by using longs just to
ensure 8-bit variables.  Doing so mainly bogotified some printf formats.
1998-07-11 06:35:39 +00:00
Julian Elischer
f7ea2f55d1 There is no such thing any more as "struct bdevsw".
There is only cdevsw (which should be renamed in a later edit to deventry
or something). cdevsw contains the union of what were in both bdevsw an
cdevsw entries.  The bdevsw[] table stiff exists and is a second pointer
to the cdevsw entry of the device. it's major is in d_bmaj rather than
d_maj. some cleanup still to happen (e.g. dsopen now gets two pointers
to the same cdevsw struct instead of one to a bdevsw and one to a cdevsw).

rawread()/rawwrite() went away as part of this though it's not strictly
the same  patch, just that it involves all the same lines in the drivers.

cdroms no longer have write() entries (they did have rawwrite (?)).
tapes no longer have support for bdev operations.

Reviewed by: Eivind Eklund and Mike Smith
	Changes suggested by eivind.
1998-07-04 22:30:26 +00:00
Doug Rabson
498b291e26 Fix some more ioctls which I missed becausese they were hidden by options
which were not in LINT.
1998-06-07 19:40:41 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Julian Elischer
9b7408fe46 There is no dump routine for fd so give it an explicit NULL entry
in the SLICE table.
1998-05-06 23:35:36 +00:00
Julian Elischer
7f2f1b784e Add dump support to the DEVFS/slice code.
now we can actually catch our crashes :-)

Submitted by: Luoqi Chen <luoqi@chen.ml.org> (the man who's everywhere)
1998-05-06 22:14:48 +00:00
Julian Elischer
26d3bf5f1b close() is no longer a SLICE method.
Close is simply an open with no-read and no-write once internal to SLICE
(it still exports a close to the rest of the kernel)
1998-04-22 10:25:27 +00:00
Julian Elischer
3e425b968d Add changes and code to implement a functional DEVFS.
This code will be turned on with the TWO options
DEVFS and SLICE. (see LINT)
Two labels PRE_DEVFS_SLICE and POST_DEVFS_SLICE will deliniate these changes.

/dev will be automatically mounted by init (thanks phk)
on bootup. See /sys/dev/slice/slice.4 for more info.
All code should act the same without these options enabled.

Mike Smith, Poul Henning Kamp, Soeren, and a few dozen others

This code does not support the following:
bad144 handling.
Persistance. (My head is still hurting from the last time we discussed this)
ATAPI flopies are not handled by the SLICE code yet.

When this code is running, all major numbers are arbitrary and COULD
be dynamically assigned. (this is not done, for POLA only)
Minor numbers for disk slices ARE arbitray and dynamically assigned.
1998-04-19 23:32:49 +00:00
Dag-Erling Smørgrav
dc73342347 Seventy-odd "its" / "it's" typos in comments fixed as per kern/6108. 1998-04-17 22:37:19 +00:00
Eivind Eklund
7b778b5e61 Make all file-system (MFS, FFS, NFS, LFS, DEVFS) related option new-style.
This introduce an xxxFS_BOOT for each of the rootable filesystems.
(Presently not required, but encouraged to allow a smooth move of option *FS
to opt_dontuse.h later.)

LFS is temporarily disabled, and will be re-enabled tomorrow.
1998-01-24 02:54:56 +00:00
Poul-Henning Kamp
ab3f746966 In all such uses of struct buf: 's/b_un.b_addr/b_data/g' 1997-12-02 21:07:20 +00:00
Joerg Wunsch
0722d6aba3 Introduce a device flags value of 0x1 to always pretend a 1.44 MB
floppy drive #0, regardless of what the CMOS says.  This is intended
as a bandaid for those plagued with Compaq's idea to not announce the
floppy drive on their `Aero' notebook.

Using the device flags is not very nice (in particular since they
aren't per-drive but per-controller), but still looks a lot better to
me than the disgusting guesswork hack that was recently posted to
-hackers.

Doc update will follow shortly.
1997-10-19 13:12:02 +00:00
Justin T. Gibbs
27651b7faa Fix a call to timeout that wasn't properly saving it's callout handle.
Submitted by:	 durian@plutotech.com
1997-09-23 22:14:43 +00:00
Justin T. Gibbs
02a199102d aha1542.c aic6360.c cy.c fd.c ft.c
if_ie.c if_wl.c if_zp.c isa.c isa_device.h
labpc.c mcd.c ncr5380.c scd.c seagate.c si.c
sio.c tw.c ultra14f.c wcd.c wd.c:

	Update for changes in the callout interface.

apic_vector.s icu_vector.s ipl.s ipl_funcs.c:

	Add CAM software/hardware interrupt support.
1997-09-21 21:41:49 +00:00
Tor Egge
d66c374f58 Enable the FIFO on enhanced floppy controllers. This reduces the
number of dma overruns/underruns for systems under heavy dma load.
As a side effect, broken enhanced floppy controllers that sometimes
don't detect dma overruns/underruns will give less errors.

Reviewed by:	j@uriah.heep.sax.de (J Wunsch)
1997-09-17 20:16:17 +00:00
Joerg Wunsch
d2fb48929a Make FDC_DEBUG a supported option.
Hide the bogus FDC ``chip type'' display behind a (mostly) undocumented
option, since people started to trust the bogus claim.  Once we're going
to handle 2.88 MB controllers, we have to redo the chip detection, by
now just leave it hidden.
1997-09-16 07:45:45 +00:00
Bruce Evans
f71d35e402 Removed unused #includes. 1997-07-20 14:10:18 +00:00
Bruce Evans
fce002fdef Don't include <sys/ioctl.h> in the kernel. Stage 1: don't include
it when it is not used.  In most cases, the reasons for including it
went away when the special ioctl headers became self-sufficient.
1997-03-24 11:25:10 +00:00
Bruce Evans
3ac4d1ef0c Don't #include <sys/fcntl.h> in <sys/file.h> if KERNEL is defined.
Fixed everything that depended on getting fcntl.h stuff from the wrong
place.  Most things don't depend on file.h stuff at all.
1997-03-23 03:37:54 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
John Dyson
996c772f58 This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
		Mount_std mounts will not work until the getfsent
		library routine is changed.

Reviewed by:	various people
Submitted by:	Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Bruce Evans
d43190805d Disabled half-baked disk statistics support. It didn't actually generate
statistics, so it just wasted scarce disk table slots and screen space.
1996-12-18 17:44:31 +00:00
Joerg Wunsch
bb6382fae2 Fix the broken EOF handling in the floppy driver. The most obvious
appearance of this bug was the malfunctioning -M option in GNU tar (it
worked only by explicitly specifying -L).

Reviewed by:	bde, and partially corrected accoring to his comments

Candidate for 2.2, IMHO even for 2.1.6.
1996-11-02 23:31:11 +00:00
Poul-Henning Kamp
bfbb029d87 Remove devconf, it never grew up to be of any use. 1996-09-06 23:09:20 +00:00
Poul-Henning Kamp
cba8a5ddd3 Make a "DWIM" function for adding [bc]devsw entries for bdev drivers.
Saves about 280 butes of source per driver, 56 bytes in object size
and another 56 bytes moves from data to bss.

No functional change intended nor expected.

GENERIC should be about one k smaller now :-)
1996-07-23 21:52:43 +00:00
Bruce Evans
cba2a7c614 Staticized a few variables.
Fixed warnings about unused variables.
1996-07-12 07:41:34 +00:00
Poul-Henning Kamp
14212c9d29 Typo. 1996-05-03 20:15:11 +00:00
Poul-Henning Kamp
17542807e5 Move from the old buf.b_actf to the new TAILQ(buf.b_act). 1996-05-03 14:57:27 +00:00
Sujal Patel
100f78bbe0 Update drivers to use isa_dma_acquire() and isa_dma_release()
Reviewed by:	bde
1996-04-08 19:40:57 +00:00
Bruce Evans
3157adc8af Removed now-unused #includes of <machine/cpu.h>. They were for bootverbose
being declared in the wrong place.
1996-04-07 17:32:42 +00:00
Bruce Evans
2151975455 Fixed devfs device names and numbers.
Fixed handling of unknown CMOS types - don't attach unrecognized devices.
1996-04-07 14:46:42 +00:00
Marc G. Fournier
ecd87fe6c3 changed from using dev_link() to devfs_link() 1996-04-02 04:52:03 +00:00
Joerg Wunsch
0e317d05cc Fetch the (dummy) READY CHANGED condition interrupt stati that
happen after an FDC reset.

Submitted by:	bde
1996-03-31 18:04:51 +00:00
Bruce Evans
f85120ac5b Fixed group of some more disk devices.
Fixed devfs function names.
1996-03-29 11:45:12 +00:00
Marc G. Fournier
6e18ce4676 Switched from using devfs_add_sw() to using devfs_add_swf()
Reviewed by:	julian@freebsd.org
1996-03-28 14:29:52 +00:00
Bruce Evans
8335c1b8ae Don't turn off the motor on active drives. The motor timeout may
occur while a command is in progress if the system is overloaded
or was stopped at a debugger breakpoint.
1996-02-25 21:01:31 +00:00
Bruce Evans
c8f2fe8db8 First attempt at creating devfs entries for sliced devices. Doesn't
quite work yet, so the heart of it is disabled.

Added bdev and cdev args to dsopen().

drivers:
Fixed device names, links, minor numbers and modes.

wd.c:
Started actually supporting devfs.

diskslice.h:
Added devfs tokens to structs (currently 576 of them per disk! :-().

subr_diskslice.c:
Create devfs entries in dsopen() and (unsuccessfully) attempt to make
them go away at the right times.  DEVFS is #undefed at the start so
that this shouldn't cause problems.
1996-01-27 04:18:15 +00:00
Bruce Evans
dd87702a51 Allocate DMA bounce buffers only when requested by drivers. Only the
fd and wt drivers need bounce buffers, so this normally saves 32K-1K
of kernel memory.

Keep track of which DMA channels are busy.  isa_dmadone() must now be
called when DMA has finished or been aborted.

Panic for unallocated and too-small (required) bounce buffers.

fd.c:
There will be new warnings about isa_dmadone() not being called after
DMA has been aborted.

sound/dmabuf.c:
isa_dmadone() needs more parameters than are available, so temporarily
use a new interface isa_dmadone_nobounce() to avoid having to worry
about panics for fake parameters.  Untested.
1996-01-27 02:33:48 +00:00
Bruce Evans
f332b8a1d5 Replaced nxdump by nodump (if the dump function gets called, then the
device must be configured, so ENXIO is a bogus errno).

Replaced zerosize by nopsize.  zerosize was a temporary alias.
1995-12-10 19:44:58 +00:00
Poul-Henning Kamp
6f4e0beb7e Staticize and cleanup. 1995-12-10 13:40:44 +00:00
Julian Elischer
4d92e19833 clean a few DEVFS things..
fix a bug where you couldn't place devices in the root directory
of devfs

remove deprecated routines

On my machine devfs now shows:
julian@erf.tfs.com:
julian@erf.tfs.com: ls -RF
bpf0            mem             ptypb           spkr            ttyp8
bpf1            null            ptypc           stderr          ttyp9
bpf2            pcaudio         ptypd           stdin           ttypa
bpf3            pcaudioctl      ptype           stdout          ttypb
console         pt              ptypf           tty             ttypc
cuaa0           ptyp0           random          ttyd0           ttypd
cuaia0          ptyp1           rsd0            ttyid0          ttype
cuala0          ptyp2           rsd1            ttyld0          ttypf
fd/             ptyp3           rvn             ttyp0           tun0
fd0.1440        ptyp4           rworm           ttyp1           urandom
fd1.1200        ptyp5           scsi/           ttyp2           vn
io              ptyp6           sd0             ttyp3           zero
kmem            ptyp7           sd1             ttyp4
lkm             ptyp8           snp0            ttyp5
log             ptyp9           snp1            ttyp6
lpt0            ptypa           snp2            ttyp7

./fd:
0       15      21      28      34      40      47      53      6       9
1       16      22      29      35      41      48      54      60
10      17      23      3       36      42      49      55      61
11      18      24      30      37      43      5       56      62
12      19      25      31      38      44      50      57      63
13      2       26      32      39      45      51      58      7
14      20      27      33      4       46      52      59      8

./scsi:
sctarg  ssc
julian@erf.tfs.com:

which is all devices really there except for disk slices/partitions..
(if I don't have it it's not there, which has GOT to be an improvement..)

no DEVFS fixes from device maintainers yet?
1995-12-09 09:11:25 +00:00