Commit Graph

531 Commits

Author SHA1 Message Date
phk
c47745e977 Send the remains (such as I have located) of "block major numbers" to
the bit-bucket.
2001-03-26 12:41:29 +00:00
sanpei
7692afa933 Add GVC1601 - Rockwell V.34 Plug & Play Modem
PR:		kern/25204
Submitted by:	Victor Ivanov <v0rbiz@icon.bg>
2001-03-07 14:27:56 +00:00
sanpei
dcef1b95cc Add IOD0081 - I-O DATA DEVICE,INC. IFML-560
PR:		kern/25173
Submitted by:	Yohsuke Fujikawa <yohsuke@mx2.nisiq.net>
2001-03-07 14:19:55 +00:00
jlemon
11781a7431 Extend kqueue down to the device layer.
Backwards compatible approach suggested by: peter
2001-02-15 16:34:11 +00:00
markm
4e9c36b300 RIP <machine/lock.h>.
Some things needed bits of <i386/include/lock.h> - cy.c now has its
own (only) copy of the COM_(UN)LOCK() macros, and IMASK_(UN)LOCK()
has been moved to <i386/include/apic.h> (AKA <machine/apic.h>).
Reviewed by:	jhb
2001-02-11 10:44:09 +00:00
jhb
b30904d840 - Catch up to the new swi API changes:
- Use swi_* function names.
  - Use void * to hold cookies to handlers instead of struct intrhand *.
- In sio.c, use 'driver_name' instead of "sio" as the name of the driver
  lock to minimize diffs with cy(4).
2001-02-09 17:46:35 +00:00
bmilekic
f364d4ac36 Change and clean the mutex lock interface.
mtx_enter(lock, type) becomes:

mtx_lock(lock) for sleep locks (MTX_DEF-initialized locks)
mtx_lock_spin(lock) for spin locks (MTX_SPIN-initialized)

similarily, for releasing a lock, we now have:

mtx_unlock(lock) for MTX_DEF and mtx_unlock_spin(lock) for MTX_SPIN.
We change the caller interface for the two different types of locks
because the semantics are entirely different for each case, and this
makes it explicitly clear and, at the same time, it rids us of the
extra `type' argument.

The enter->lock and exit->unlock change has been made with the idea
that we're "locking data" and not "entering locked code" in mind.

Further, remove all additional "flags" previously passed to the
lock acquire/release routines with the exception of two:

MTX_QUIET and MTX_NOSWITCH

The functionality of these flags is preserved and they can be passed
to the lock/unlock routines by calling the corresponding wrappers:

mtx_{lock, unlock}_flags(lock, flag(s)) and
mtx_{lock, unlock}_spin_flags(lock, flag(s)) for MTX_DEF and MTX_SPIN
locks, respectively.

Re-inline some lock acq/rel code; in the sleep lock case, we only
inline the _obtain_lock()s in order to ensure that the inlined code
fits into a cache line. In the spin lock case, we inline recursion and
actually only perform a function call if we need to spin. This change
has been made with the idea that we generally tend to avoid spin locks
and that also the spin locks that we do have and are heavily used
(i.e. sched_lock) do recurse, and therefore in an effort to reduce
function call overhead for some architectures (such as alpha), we
inline recursion for this case.

Create a new malloc type for the witness code and retire from using
the M_DEV type. The new type is called M_WITNESS and is only declared
if WITNESS is enabled.

Begin cleaning up some machdep/mutex.h code - specifically updated the
"optimized" inlined code in alpha/mutex.h and wrote MTX_LOCK_SPIN
and MTX_UNLOCK_SPIN asm macros for the i386/mutex.h as we presently
need those.

Finally, caught up to the interface changes in all sys code.

Contributors: jake, jhb, jasone (in no particular order)
2001-02-09 06:11:45 +00:00
peter
9b4aea27e5 Remove count for NSIO. The only places it was used it were incorrect.
(alpha-gdbstub.c got sync'ed up a bit with the i386 version)
2001-01-31 10:54:45 +00:00
tanimura
2b28b87554 Add OZO8008 - Zoom (33.6k Modem).
PR:		kern/23336
Submitted by:	Paulo Menezes <root@samurai.dee.uc.pt>
2000-12-26 06:52:57 +00:00
jhb
66a2ef9e85 Convert the sio driver to use a spin mutex instead of a s_lock. This is
going to hurt sio(4) performance for the time being.  As we get closer to
release and have more of the kernel unlocked we can come back to doing
arcane optimizations to workaround the limitations of the sio hardware.
2000-12-18 23:56:16 +00:00
jhb
ff18363a3e - Overhaul the software interrupt code to use interrupt threads for each
type of software interrupt.  Roughly, what used to be a bit in spending
  now maps to a swi thread.  Each thread can have multiple handlers, just
  like a hardware interrupt thread.
- Instead of using a bitmask of pending interrupts, we schedule the specific
  software interrupt thread to run, so spending, NSWI, and the shandlers
  array are no longer needed.  We can now have an arbitrary number of
  software interrupt threads.  When you register a software interrupt
  thread via sinthand_add(), you get back a struct intrhand that you pass
  to sched_swi() when you wish to schedule your swi thread to run.
- Convert the name of 'struct intrec' to 'struct intrhand' as it is a bit
  more intuitive.  Also, prefix all the members of struct intrhand with
  'ih_'.
- Make swi_net() a MI function since there is now no point in it being
  MD.

Submitted by:	cp
2000-10-25 05:19:40 +00:00
tanimura
14c1fd8d89 Add MAE0021 - Jetstream Int V.90 56k Voice Series 2.
PR:		i386/19920
Submitted by:	Peter Ortner <port@iname.com>
2000-10-10 10:06:26 +00:00
bde
9a732eea7b Use schedsofttty() again so that siopoll() gets scheduled as designed
(SMPng casualty in rev.1.308 with wrong fix in rev.1.310).
2000-10-08 14:13:31 +00:00
jhb
71938e9fcd - Heavyweight interrupt threads on the alpha for device I/O interrupts.
- Make softinterrupts (SWI's) almost completely MI, and divorce them
  completely from the x86 hardware interrupt code.
  - The ihandlers array is now gone.  Instead, there is a MI shandlers array
    that just contains SWI handlers.
  - Most of the former machine/ipl.h files have moved to a new sys/ipl.h.
- Stub out all the spl*() functions on all architectures.

Submitted by:	dfr
2000-10-05 23:09:57 +00:00
jhb
cc0d71a81f - Wrap functions and variables that aren't used in the alpha console probe
with #ifndef __alpha__/#endif
- Add function prototypes for functions used during the alpha console
  probe and gdb port setup inside of #ifdef __alpha__/#endif.
2000-09-22 08:42:30 +00:00
jhb
7013b83225 - Remove the inthand2_t type and use the equivalent driver_intr_t type from
newbus for referencing device interrupt handlers.
- Move the 'struct intrec' type which describes interrupt sources into
  sys/interrupt.h instead of making it just be a x86 structure.
- Don't create 'ithd' and 'intrec' typedefs, instead, just use 'struct ithd'
  and 'struct intrec'
- Move the code to translate new-bus interrupt flags into an interrupt thread
  priority out of the x86 nexus code and into a MI ithread_priority()
  function in sys/kern/kern_intr.c.
- Remove now-uneeded x86-specific headers from sys/dev/ata/ata-all.c and
  sys/pci/pci_compat.c.
2000-09-13 18:33:25 +00:00
jhb
25c0ff28f3 Add a nasty hack to get remote kernel gdb working from ddb. ddb would
complain before that a suitable gdb port had not been setup because gdbdev
was NULL.  This abuses the fact that the gdb port is hard-coded to the
address normally assigned to sio1 and thus hard-codes in sio1 as the gdb
port.  Yuck.
2000-09-11 04:33:36 +00:00
jhb
26e551127d Back out my previous commit as well as some SMPng changes to revert the
siosetwater() function to its previous behavior of always disabling
interrupts and obtaining the com_lock before returning.

Requested by:	bde (in principle)
2000-09-08 08:50:25 +00:00
grog
5d888c38ed siointr1: Schedule soft interrupt when needed. This fixes the "no
interrupt" problem people had seen with SMPng.

Approved by:       jasone
Tested by:         bp
2000-09-08 06:58:58 +00:00
jhb
7818bcb78c Fix a problem where we would recursively try to get the com lock within
comparam when calling siosetwater().

Noticed by:	bp
2000-09-08 00:35:46 +00:00
jasone
769e0f974d Major update to the way synchronization is done in the kernel. Highlights
include:

* Mutual exclusion is used instead of spl*().  See mutex(9).  (Note: The
  alpha port is still in transition and currently uses both.)

* Per-CPU idle processes.

* Interrupts are run in their own separate kernel threads and can be
  preempted (i386 only).

Partially contributed by:	BSDi (BSD/OS)
Submissions by (at least):	cp, dfr, dillon, grog, jake, jhb, sheldonh
2000-09-07 01:33:02 +00:00
sheldonh
75c63c707d Add ZTIA001 - Zoom Internal V90 Faxmodem.
PR:		21028
Submitted by:	Glenn Johnson <glennpj@charter.net>
2000-09-05 09:42:47 +00:00
sheldonh
9384a16e49 Add Boca K56Flex PnP modem.
PR:		21000
Submitted by:	Andrew Sparrow <spadger@best.com>
2000-09-04 13:50:37 +00:00
phk
7173fac529 Call destroy_dev() when sio devices go away. 2000-08-27 14:46:13 +00:00
peter
c4b3a3ad92 Add another USR modem.
PR: 20621
Submitted by: Masanori Taira <mtaira@logicaleffect.com>
2000-08-15 21:03:28 +00:00
phk
e5de271d47 Previous commit changing SYSCTL_HANDLER_ARGS violated KNF.
Pointed out by:	bde
2000-07-04 11:25:35 +00:00
phk
61ff05be25 Style police catches up with rev 1.26 of src/sys/sys/sysctl.h:
Sanitize SYSCTL_HANDLER_ARGS so that simplistic tools can grog our
sources:

        -sysctl_vm_zone SYSCTL_HANDLER_ARGS
        +sysctl_vm_zone (SYSCTL_HANDLER_ARGS)
2000-07-03 09:35:31 +00:00
ps
27235775e1 Add option ALT_BREAK_TO_DEBUGGER.
Implement the Solaris way to break into DDB over a serial console
instead of sending a break.  Sending the character sequence
CR ~ ^b will break the kernel into DDB (if DDB is enabled).

Reviewed by:	peter
2000-06-14 06:41:33 +00:00
tanimura
2b7240682f Add SUP1670 - Supra 336i V+ Intl. Since we update the PnP IDs
more frequently than the core part of the sio driver, it might
be good to move the PnP IDs to sio_isapnp.h or something like
that.

PR:		i386/18828
Submitted by:	J.P. King <jpk28@cam.ac.uk>
2000-05-26 11:41:08 +00:00
tanimura
afbefc468c Add RSS0262 - 5614Jx3[G] V90+K56Flex Modem.
PR:		kern/18168
Submitted by:	Tony Voet <voet@engineer.com>
2000-05-19 10:02:15 +00:00
tanimura
ddbca3f99d Add ACH2012 - 5634BTS 56K Video Ready Modem.
PR:		kern/17351
Submitted by:	Eric D. Futch <efutch@nyct.net>
2000-05-19 03:41:22 +00:00
tanimura
b5dca9211a Add a couple of new PnP IDs.
o OZO800f - Zoom 2812 (56k Modem)
PR:		kern/18603
Submitted by:	Matt Loschert <loschert@servint.com>

o DAV0336 - DAVICOM 336PNP MODEM
PR:		kern/18608
Submitted by:	Martijn Plak <martijn@be3.com>
2000-05-18 02:06:24 +00:00
nyan
0dcfdccf0d Use bus_space stuff except where it needs high performance.
Reviewed by:	bde
2000-05-12 12:37:28 +00:00
tanimura
9b0438a751 Add the logical ID of FUJITSU Modem 33600 PNP/I2.
PR:		kern/18257
Submitted by:	Takanori Watanabe <takawata@shidahara1.planet.sci.kobe-u.ac.jp>
2000-05-02 05:54:11 +00:00
imp
af231a92f5 Add support for pci modems. ONLY CONTROLLER BASED MODEMS. This
doesn't support winmodems, softmodems, hcf or any other modem that
relies on the host to do any sort of soft control for any aspect of
the modem's function.  There are two modems known to work:
	3COM FaxModem PCI.
	ActionTec 56k VoiceMessaging PCI Modem
and the following modem might work
	Multitech PCI FaxModem	(not sure about this)
and the serial pci cards might work too.  I have neither these
hardware items so I can't add support for them.
2000-04-01 06:14:21 +00:00
peter
66fbac6708 Recognize USR3050 "U.S. Robotics 56K FAX INT" fax modem.
PR:		17702
Submitted by:	Scot W. Hetzel <hetzels@westbend.net>
2000-03-31 07:09:08 +00:00
phk
1a34cea0e8 Isolate the Timecounter internals in their own two files.
Make the public interface more systematically named.

Remove the alternate method, it doesn't do any good, only ruins performance.

Add counters to profile the usage of the 8 access functions.

Apply the beer-ware to my code.

The weird +/- counts are caused by two repocopies behind the scenes:
	kern/kern_clock.c -> kern/kern_tc.c
	sys/time.h -> sys/timetc.h
(thanks peter!)
2000-03-20 14:09:06 +00:00
imp
036c5aaf83 Fix crashes on card eject for pccard modems. We check for NULL when
we get the com address.  If so, we go ahead and return.  Bruce thinks
there's a bug in the pccard layer that it terminates devices with
extreme prejustice rather than letting them deside for themselves when
to terminate (and he's likely right).  This fix doesn't change that,
but instead works around it by checking for NULL pointers at more
places than before.

The detach routine still calls functions at interrupt level that
aren't reentrant.  In theory this could cause a problem, but none
showed up in practice.  Future versions should correct this problem,
likely by making the detach process a thread/process at the pccard
level.  NEWCARD will do this, and the current pccard layer should
likely be modified to that as well, should it live long enough.

A few style nits of the same form that were in my original patch sent
off to bde were also fixed as part of this process.  Mostly use of
!ptr and return ENOPARENS.

This should prevent a crash on suspend with an active ppp link as
well, but that wasn't tested.

Reviewed by:	bde
Approved by:	jkh
2000-03-11 20:22:09 +00:00
peter
0df8e6120e Recognize another modem, "PMC2430 - Pace 56 Voice Internal Modem"
Submitted by:	Mark Ovens <mark@ukug.uk.freebsd.org>
2000-03-05 14:44:05 +00:00
peter
43f5583c5c Fix two more problems with freeing the softc data manually. subr_bus.c
is responsible for this and this will lead to malloc 'freeing already
free' type panics.  One was in the probe code, the other was in the
pccard eject? code.

Not explicitly approved by: jkh (but the first is fallout from subr_bus.c
rev 1.54 which was an approved commit, the second is the same problem)
2000-03-02 03:45:41 +00:00
bde
54489bb749 Fixed regressions in rev.1.274:
1) Non-AST4 multiport cards were broken by bypassing the code that changes
   `idev' to the multiport master device.
2) AST4 multiport cards apparently were broken by inverting the test for
   the master device having an irq.
3) Error handling for nonexistent master devices was broken by removing a
   check for a null pointer.
4) `int' error codes returned by bus_get_resource() were assigned directly
   to the boolean variable com->no_irq.  Probably harmless, since the
   boolean is implemented as a u_char.

Submitted by:	part 1) by Chris Radek <cradek@in221.inetnebr.com>
		part 2) by yokota
Approved by:	jkh
2000-02-15 17:29:09 +00:00
bde
4c824a9165 "Completed" the previous fix. Return ENOMEM on memory allocation failure
in sioattach(), not ENXIO.  Free resources before returning early in
sioprobe() and sioattach().
2000-01-29 03:02:55 +00:00
n_hibma
b675bb30c4 Return ENXIO on error, not 0. Seems to have been skipped when converting
to newbus.

Reviewed by:	bde
2000-01-23 15:11:15 +00:00
peter
e4a289662a Add another four device ID's for isa pnp modems. The USR's seem to use
the same vendor and logical ID.  The rest I am not sure whether they
are vendor or logical, but it won't hurt if I've put a vendor ID here
as merely will not match.  These came from the old sio-pnp code, hence
the uncertainty about which ID it is.
2000-01-18 09:30:58 +00:00
gallatin
358f7018d7 Make this compile on alpha 2000-01-13 02:09:44 +00:00
yokota
715966bf8a Add a new mechanism, cndbctl(), to tell the console driver that
ddb is entered.  Don't refer to `in_Debugger' to see if we
are in the debugger.  (The variable used to be static in Debugger()
and wasn't updated if ddb is entered via traps and panic anyway.)

- Don't refer to `in_Debugger'.
- Add `db_active' to i386/i386/db_interface.d (as in
  alpha/alpha/db_interface.c).
- Remove cnpollc() stub from ddb/db_input.c.
- Add the dbctl function to syscons, pcvt, and sio. (The function for
  pcvt and sio is noop at the moment.)

Jointly developed by: bde and me

(The final version was tweaked by me and not reviewed by bde.  Thus,
if there is any error in this commit, that is entirely of mine, not
his.)

Some changes were obtained from: NetBSD
2000-01-11 14:54:01 +00:00
peter
b21353b480 Recognize the GVC0505 (GVC 56k Faxmodem) as a sio device.
Obtained from: Dan J Fraser <dfraser@capybara.org> (for NetBSD)
1999-12-27 05:02:25 +00:00
peter
6c96f03d92 Extract a list of extra isa pnp modem ID's from NetBSD and OpenBSD. Some
of these are bound to have a PNP05xx compatid, but there's no easy way to
tell.  Since it's just an ID list and uses the pnp header's description
strings rather than encoding strings here, it doesn't seem to be too
expensive to err on the safe side.
1999-12-21 09:16:03 +00:00
peter
c0e22cb9c0 Add SUP2070 (Diamond SupraExpress 56i)
Submitted by:  Kenneth Wayne Culver <culverk@wam.umd.edu>

Add MOT4560
Obtained from: wollman
1999-12-20 20:31:23 +00:00
imp
80e1fa6d2b o Make pccard work at all by including card.h
o fix return type of sio_pccard_detach
o don't free softc in deatch, since that is done by newbus
o disconnect interrupt we used to have.  Add cookie to com so that we can
  tear down the interrupt on unload
o Set gone earlier, but likely doesn't matter

This makes sio pccards work again.  Cards that are active when ejects may
not work (but they might, softc goes away quickly).

These changes are unreviewed by bde.  I'll make any style changes he wants.
1999-12-10 08:19:19 +00:00
peter
b0a0898508 Fix a pair of silly warnings that I introduced (that would have been
nasty on an Alpha or some other sizeof(int) != sizeof(long) machine).
1999-12-06 17:52:20 +00:00
peter
8bc1a5a150 Use bus_get_resource() instead of bus_get_resource_start() as the latter
returns "0" on failure, which is indistinguishable from (say) irq 0.  This
should stop a couple of stray messages that turn up.

Also, if a BUS_SETUP_INTR() fails with INTR_TYPE_FAST, try falling back to
a normal interrupt.  This might help pccard folks with a shared slot
interrupt.  This whole thing needs to be revisited.
1999-12-06 06:47:02 +00:00
imp
737361b49b Fix the hang on card eject problem and maybe the hang on suspend
problem.

o Create new timeout routine so we don't detach the card inside a ISR
  but instead drop back to spl0 via a timeout of 0.
o Actually delete the child of the pccard device rather than just faking
  it badly.
o Fix sio, ed and ep to have pccard detach routines that are int rather
  than void.
o Fix ep and ed pccard detach routines to use if_detach rather than just
  if_down.  if_detach destroys the device, while if_down just marks it
  down.  In this incarnation of the pccard things, we map the disable
  the slot action to detach the driver, which removes the driver from the
  device tree.  When that is done, a panic would soon follow as the
  ifconfig tried to down the device.

Didn't fix:
o Should cache the pccard dev child's pointer in struct slot
o remove now unused parts of struct slot
o Any driver using softc after detach has been called.  sio's softc used
  to be statically allocated, so you could check sc->gone, but that is
  now gone.
o Didn't remove gone from softc of drivers that use the old pccard method.

Didn't test:
o ed driver changes
o sio driver changes on pccards
o suspend (no laptop or apm support on my desktop)
1999-12-01 07:38:54 +00:00
peter
c9973ec034 Argh, don't turn the IIR test on unless it's a pccard. These tests mess
up the subsequent probes.
1999-11-18 10:29:06 +00:00
peter
37f3e03a47 Merge some typo fixes from dev/sio/sio.c (siostop -> comstop)
Remove EXTRA_SIO/NSIOTOT and make it fully dynamic (from dev/sio/sio.c)
Make sio work for pccard here - pccardd doesn't activate interrupts
until after prove has succeeded.
Mark the initial reset of likely sio ports as broken as it depended on
config supplying a list of locations to probe, devices are now proved
standalone.
Optimize a bit of COM_NOAST4() logic.
Use bus_get_resource_start() etc rather than using isa-centric calls.
Reactivate the IIR_TXRDYBUG test, I've got a card here with it.
Try to be a bit smarter about activating interrupts (ie: don't panic
if polled)
Fix some style bugs that have crept in over time (there are still more).
1999-11-18 07:22:41 +00:00
imp
5a6df965a1 Last change to pccard_nbk now obviates the need to check the name of
the device in question.
Also fix warnings on if_ep_pccard.c
1999-10-28 05:06:14 +00:00
imp
94464bc92e Add newbus pccard attachment for sio. Some of this code was written
by Peter Wemm, but I've not merged all the changes he sent to me yet.
This has not been reviewed by bde, so I'm committing to resolve any
issues he has with this when he returns from FreeBSD CON 99.

I've had four reports of this working for them.  I've been able to
communicate to both my built in modem and a pccard modem with these
patches.
1999-10-25 02:46:52 +00:00
steve
064f8661d9 Add support for the USRobotics Courier V.Everything (USR0101) modem.
Submitted by:	Robert Blayzor <robert@superior.net>
1999-10-11 15:06:14 +00:00
deischen
22eb72a42c Change pnp ID for the SupraExpress 56i Sp V.90 modem (logical ID
0x8024b04e) so that the cards description is used instead of overriding
it.  While I'm here, add an ID for the SUP2080 and the SUP2030.

PR:		kern/13983
Submitted by:	Kurt D. Zeilenga <Kurt@OpenLDAP.Org> (SUP2030)
		dfr  (rest of change)
Reviewed by:	dfr
1999-10-03 22:25:19 +00:00
deischen
ca2541a602 Add logical device ID for the Diamond SupraExpress 56K PnP modem:
Vendor ID SUP2480 (0x8024b04e), Serial Number 0x00001334
  PnP Version 1.0, Vendor Version 0
  Device Description: SupraExpress 56i Sp V.90

Reviewed by:	dfr
1999-10-03 17:50:09 +00:00
phk
e9e0512210 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
phk
a2c68c62db This patch clears the way for removing a number of tty related
fields in struct cdevsw:

        d_stop          moved to struct tty.
        d_reset         already unused.
        d_devtotty      linkage now provided by dev_t->si_tty.

These fields will be removed from struct cdevsw together with
d_params and d_maxio Real Soon Now.

The changes in this patch consist of:

        initialize dev->si_tty in *_open()
        initialize tty->t_stop
        remove devtotty functions
        rename ttpoll to ttypoll
        a few adjustments to these changes in the generic code
        a bump of __FreeBSD_version
        add a couple of FreeBSD tags
1999-09-25 16:21:39 +00:00
peter
1ac919681f Make it build, copy from dev/sio/sio.c:
isa_set_flags -> device_set_flags
isa_get_flags -> device_get_flags
1999-09-08 13:46:54 +00:00
peter
969f541a66 Restore the old sio* - bruce can fix it himself. 1999-09-08 10:59:03 +00:00
peter
6c707b6334 Repo copy isa/sio* to dev/sio/sio* in preperation for extra bus methods
including pci.
Also, eliminate NSIOTOT and do it dynamically where it matters.
1999-09-06 14:06:23 +00:00
peter
95c2400fb2 Move the #if 0 to catch the card.h include and make sure it's zero. 1999-09-06 13:30:36 +00:00
imp
ac1dd5e877 Start to disentangle the isa attachments from other buses. Partially
rewrite the pccard attachment case.  This is a work in progress, but
doesn't break the isa case.

I left the #if 0...#endif around the pccard stuff, at Peter's request,
so that normal users don't shoot themselves in the foot.

While I was here:
	o Indent a comment to the right location
	o Spell Unknown with a final 'n'.

Reviewed by: peter
1999-09-06 06:45:20 +00:00
dfr
210a63233e Add USR3031 pnp id.
Submitted by: Steve Price <sprice@hiwaay.net>
1999-09-04 14:31:56 +00:00
dfr
12f5d4eca8 Remove the last vestiges of the old pnp code in favour of the new one. 1999-09-03 20:01:08 +00:00
dfr
f351c4f3dc This represents essentially a complete rewrite of the ISA PnP code. The
new system is integrated with the ISA bus code more cleanly and allows
the future addition of more enumerators such as PnPBIOS and ACPI.

This commit also enables the new pcm driver since it is somewhat tied to
the new PnP code.
1999-09-01 20:53:43 +00:00
phk
f62fb86505 s/si_tty_tty/si_tty/g 1999-08-30 10:35:37 +00:00
peter
3b842d34e8 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
phk
663cbe4fc2 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
phk
7f2d7ecb55 make alpha compile again. 1999-08-09 11:02:45 +00:00
phk
ee871b6440 Merge the cons.c and cons.h to the best of my ability. alpha may or
may not compile, I can't test it.
1999-08-09 10:35:05 +00:00
phk
0c67d78c0d Allocate and register struct tty on the fly. 1999-08-08 20:25:14 +00:00
phk
2a99fba980 Remove cmaj and bmaj args from DEV_DRIVER_MODULE. 1999-07-04 14:58:56 +00:00
yokota
8d2a7d799c Skip the device if it is disabled, when searching for a serial port
to be used for the kernel console in sccnprobe().
1999-06-29 17:34:16 +00:00
yokota
4f4eb0cfe5 The second phase of syscons reorganization.
- Split syscons source code into manageable chunks and reorganize
  some of complicated functions.

- Many static variables are moved to the softc structure.

- Added a new key function, PREV.  When this key is pressed, the vty
  immediately before the current vty will become foreground.  Analogue
  to PREV, which is usually assigned to the PrntScrn key.
  PR: kern/10113
  Submitted by: Christian Weisgerber <naddy@mips.rhein-neckar.de>

- Modified the kernel console input function sccngetc() so that it
  handles function keys properly.

- Reorganized the screen update routine.

- VT switching code is reorganized.  It now should be slightly more
  robust than before.

- Added the DEVICE_RESUME function so that syscons no longer hooks the
  APM resume event directly.

- New kernel configuration options: SC_NO_CUTPASTE, SC_NO_FONT_LOADING,
  SC_NO_HISTORY and SC_NO_SYSMOUSE.
  Various parts of syscons can be omitted so that the kernel size is
  reduced.

  SC_PIXEL_MODE
  Made the VESA 800x600 mode an option, rather than a standard part of
  syscons.

  SC_DISABLE_DDBKEY
  Disables the `debug' key combination.

  SC_ALT_MOUSE_IMAGE
  Inverse the character cell at the mouse cursor position in the text
  console, rather than drawing an arrow on the screen.
  Submitted by: Nick Hibma (n_hibma@FreeBSD.ORG)

  SC_DFLT_FONT
  makeoptions "SC_DFLT_FONT=_font_name_"
  Include the named font as the default font of syscons.  16-line,
  14-line and 8-line font data will be compiled in.  This option replaces
  the existing STD8X16FONT option, which loads 16-line font data only.

- The VGA driver is split into /sys/dev/fb/vga.c and /sys/isa/vga_isa.c.

- The video driver provides a set of ioctl commands to manipulate the
  frame buffer.

- New kernel configuration option: VGA_WIDTH90
  Enables 90 column modes: 90x25, 90x30, 90x43, 90x50, 90x60.  These
  modes are mot always supported by the video card.
  PR: i386/7510
  Submitted by: kbyanc@freedomnet.com and alexv@sui.gda.itesm.mx.

- The header file machine/console.h is reorganized; its contents is now
  split into sys/fbio.h, sys/kbio.h (a new file) and sys/consio.h
  (another new file).  machine/console.h is still maintained for
  compatibility reasons.

- Kernel console selection/installation routines are fixed and
  slightly rebumped so that it should now be possible to switch between
  the interanl kernel console (sc or vt) and a remote kernel console
  (sio) again, as it was in 2.x, 3.0 and 3.1.

- Screen savers and splash screen decoders
  Because of the header file reorganization described above, screen
  savers and splash screen decoders are slightly modified.  After this
  update, /sys/modules/syscons/saver.h is no longer necessary and is
  removed.
1999-06-22 14:14:06 +00:00
peter
615565283a Use the proper interfaces to find if a device is enabled, don't dig into
the bus mechanism's private internals!
1999-06-20 13:10:09 +00:00
grog
06c3ad86b4 sioprobe: Don't try to initialize disabled ports. In particular,
attempting to initialize sio3 caused problems with ATI video boards,
which cleverly share the I/O space.

PR: kern/12295
1999-06-19 08:14:56 +00:00
mckusick
ac0e96a2d8 COM_LLCONSOLE should over-ride COM_DEBUGGER request. 1999-06-15 22:15:10 +00:00
phk
ad85d13d8a The PPSAPI group defines the polarity in draft 3, we guessed it wrong. 1999-05-31 06:57:31 +00:00
phk
7e4a9dced9 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
dfr
89255a036a Simplistic pnp support. Needs more ids to be added. 1999-05-30 11:14:39 +00:00
dfr
f26594f08b Allow a sio port with its flags set to DEBUGGER+LLCONSOLE to be used for
gdb. This allows the sio probe for that port to be disabled which stops
it from confusing the debugger.
1999-05-28 09:37:11 +00:00
dfr
b22d4cf457 Use the resource apis to manipulate resources. 1999-05-22 15:47:34 +00:00
dfr
56809581f0 Adjust console stuff now that makedev is no longer a macro. 1999-05-10 14:01:35 +00:00
peter
f8c4605317 Make COM_ESP and COM_MULTIPORT compile for LINT. It might even work.. 1999-05-09 20:35:02 +00:00
peter
4889b510f0 Optimize out a couple of places where com_addr() is used twice in a row,
although this is pretty trivial.  devclass_get_softc() is a tad more
expensive than the old com_addr() implementation.  If Bruce is really
worried about the cost of this, it could always be changed so that the
softc pointer is stored in a local array again.
1999-05-09 16:56:38 +00:00
peter
cecd2635d9 Move opt_sio.h options to conf/options and activate in isa/sio.c 1999-05-09 13:10:49 +00:00
phk
e05bc3b49a Unconfuse DEV_MODULE() and DEV_DRIVER_MODULE() about the difference between
a major number for a dev_t.
1999-05-09 13:00:50 +00:00
phk
e8f4fc4a1d add some amount of sanity to the way the gdb stuff finds its device.
I'm not too happy about the result either, but at least it has less
chance of backfiring.

This particular feature could be called "a mess" without offending
anybody.
1999-05-09 10:51:13 +00:00
phk
20c48466e9 siocngetc & putc can be staticized. 1999-05-09 10:28:50 +00:00
dfr
e4989c23fe 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
mckusick
6106d6252c Get rid of extern declarations on gdb stuff so systems compiled without
DDB will compile. Warn users that try to use GDB without specifying a GDB
port in their configuration file.
1999-05-07 23:08:23 +00:00
mjacob
f00b96b7b7 fix it so it compiles on alpha again 1999-05-07 17:52:01 +00:00
phk
693dd58bb3 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
mckusick
87d0bb82af Generalize to allow any serial port to be used as the GDB port.
Mark the GDB port in the config file with flags 0x80. Currently
only the sio driver checks these flags and sets up a GDB port,
but adding similar code to other serial drivers would be easy.
For backward compatibility, if an sio port is marked as the console
and no port is marked as the gdb port, the GDB port will be mapped
to the console port. This hack should go away at some point.
1999-05-07 06:50:41 +00:00
peter
459d4a2cc5 Fix up a few easy 'assignment used as truth value' and 'suggest parens
around && within ||' type warnings.  I'm pretty sure I have not masked
any problems here, I've committed real problem fixes seperately.
1999-05-06 18:44:42 +00:00
phk
16e3fbd2c1 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
dt
98cf21bf1e Modify the non-i386 version of disable_intr() and enable_intr() so that they
don't produce a warning on every use.
1999-04-24 10:41:21 +00:00
peter
d7c3fd16a8 Merge missing changes from i386/isa/sioreg.h (PC98 related) 1999-04-18 14:37:47 +00:00
peter
8095c1f136 Tidy up a few things left over from the conversion from i386/isa/sio.c.
Leave two #if 0'd notes about the way things used to be done for reference.
1999-04-18 14:35:28 +00:00
dfr
44d8b46bff Register sio interrupts as fast (fixing some silo overflow messages). 1999-04-18 14:11:01 +00:00
peter
3f4f549a18 Merge up to rev 1.234 (nice revision number!) of i386/isa/sio.c. 1999-04-17 01:02:27 +00:00
peter
267905b9c3 Merge up to rev 1.226 of i386/isa/sio.c 1999-04-17 00:37:01 +00:00
peter
087d4857e5 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
phk
67f187760e Use suser() to check for super user rather than examining cr_uid directly.
Use TTYDEF_SPEED rather than 9600 a couple of places.

Reviewed by:	bde, with a few grumbles.
1999-01-30 12:17:38 +00:00
peter
5cf49b590f Update the pccard hooks to use a module style declaration instead. 1999-01-19 00:21:53 +00:00
steve
f8cec29a5c Add support for another 3COM/USR PNP modem, USR3031. 1998-12-13 23:12:54 +00:00
dfr
3331f029dc * Add hooks to allow the X server to access I/O ports and memory.
* Update drivers to the latest version of the bus interface.

The ISA drivers' use of the new resource api is minimal.  Garrett has
some much cleaner drivers which should be more easily shared between
i386 and alpha.  This has only been tested on cia based machines.  It
should work on lca and apecs but I might have broken something.
1998-11-15 18:25:17 +00:00
dfr
ae218f4364 Merge changes from i386/isa/sio.c up to revision 1.215. 1998-09-26 14:47:16 +00:00
peter
75b8dc0791 Underlying ,v files were copied and detagged. Re-commit old versions
onto the head revision.  (mainly using sys/bus.h etc for alpha)
1998-09-26 14:00:29 +00:00
eivind
27ef9ec914 Support PnP compatibility IDs. This allow e.g. the ed driver to pick
up any PnP NE2000 compatible card, instead of forcing us to always
update ID lists.

Submitted by:	Ugo Paternostro <paterno@dsi.unifi.it>
1998-09-13 22:15:44 +00:00
bde
1275a52cea Fixed printf format errors. 1998-08-23 10:16:26 +00:00
bde
35fa873125 Added D_TTY to the cdevswitch flags for all tty drivers. This is required
for the Lite2 fix for always returning EIO in dead_read().

Cleaned up the cdevswitch initializers for all tty drivers.

Removed explicit calls to ttsetwater() from all (tty) drivers.  ttsetwater()
is now called centrally for opens, not just for parameter changes.
1998-08-23 08:26:42 +00:00
bde
cdfa36e28b Fixed devfs initialization which I broke in the previous commit. 1998-08-20 05:12:48 +00:00
bde
1524621152 Enabled dynamically sized tty input buffers (with enough buffering
for 1 second's worth of input) and larger tty output buffers.  The
interrupt-level buffers are still too small for speeds above 115200
bps (only a little too small for 230400 bps if RTS flow control is
enabled).

Don't call ttsetwater() explicitly in open().  It is now called for
the TTYDISC l_open() and should be static.

Don't attempt to register the cdevsw more than once.
1998-08-19 04:17:38 +00:00
bde
d22b2d54d1 Register tty software interrupt handlers at run time using register_swi()
instead of at compile time using ifdefs.

Use _swi_null instead of dummycamisr.  CAM and dpt should call
register_swi() instead of hacking on ihandlers[] directly.
1998-08-11 17:01:32 +00:00
bde
8b2af4315e Changed %n to %r in devfs name format strings. %n has almost gone away. 1998-07-15 12:18:34 +00:00
phk
f07cfaed29 Avoid some panics in sio_unload which gets called with various dirt
if the attach of a modem card failed.
1998-06-24 09:23:32 +00:00
bde
0fd89b46c5 Don't log "unexpected" events on never-opened devices. Events left
over from the probe are now expected for incompatible UARTs that
deliver IRQs as a strobe (low) instead of a level (high).

Discard events on going-away devices too.  Endless loops may have
been possible when an active pccard was removed.
1998-06-16 11:05:59 +00:00
dfr
1d5f38ac22 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
bde
0d80f93df9 Force success of the probe (after doing it as before except in one
miscconfigured case) if the port is the console.  This fixes several
bugs:
- if all sioprobe()s failed, then the console driver followed null
  pointers in cdevsw[].
- if the sioprobe() for the console failed but another sioprobe()
  succeeded, then init hung early when the console couldn't be
  opened.
- it was silly for the console to not be there after printing boot
  messages on it.
Bugs introduced by this are hopefully no worse than old ones caused
by forcing the success of the `cn' level probe.
1998-06-03 12:30:10 +00:00
bde
e32c63389f Fixed a printf() arg botch in the previous commit.
Only complain about an irq mismatch in the probe if the configured
irq doesn't become active, and then print the bitmap of irqs that
became active (including clock irqs) instead of just the first
(not including clock irqs).

Bugs reported by: msmith
1998-06-03 09:43:38 +00:00
bde
ec6c6de5c6 Converted the ICU-level interrupt tests (3, 5 and 8) in sioprobe() into
a test of the irq number, and made failure of this test non-fatal.
Removed related unused complications for the APIC_IO case.  Removed the
no-test3 flag.

Deverbosified the failure messages for the other tests.  Removed the
per-port verbose flag - just use the general verbose flag.
1998-05-31 10:53:55 +00:00
phk
9aa9ab1fb2 LoadSoftModem() routine at sio.c does not trap general serial I/Os.
It fauls to probe eather DSI Modem or others.

PR:		4657
Reviewed by:	phk
Submitted by:	Kenji Saito <marukun@mx2.nisiq.net>
1998-05-20 06:46:58 +00:00
phk
cad4243e61 The PnP code in 2.2.6 detects the Motorola ModemSurfer 56K,
but doesn't do much of anything with it.  I added it to siopnp_ids[]
and it was found and recognized as a serial port.

PR:		6605
Reviewed by:	phk
Submitted by:	Dave Marquardt <marquard@zilker.net>
1998-05-13 07:26:55 +00:00
phk
3a0a98290a Detect USR PnP x2 modem.
PR:		6496
Reviewed by:	phk
Submitted by:	Kurt D. Zeilenga <Kurt@Boolean.NET>
1998-05-04 10:35:13 +00:00
msmith
e3c9e3f7a5 PCCARD-code related style nits, as requested.
Submitted by:	bde
1998-02-27 06:39:32 +00:00
msmith
54cbf8c44a Fix some style nits and remove an unused header.
Submitted by:	bde
1998-02-27 05:38:32 +00:00
nate
ee159ceede - If a PCCARD serial device is removed from the system, let the serial
driver 'break out' of the infinite loop waiting for a response from
  it.  This is a bad thing, but no worse than having the kernel hang.
1998-02-14 16:17:17 +00:00
phk
76528cc622 Implement the spirit but not the letter of Terrys hot-char patch.
The differences Terrys patch and this patch are:
 * Remove a lot of un-needed comments.
 * Don't put l_hotchar at the front of stuct linesw, there is no need to.
 * Use the #defines for the hotchar in the SLIP and PPP line disciplines
1998-02-13 12:46:28 +00:00
eivind
71ddd31390 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
amurai
6c81cb515e 1. Supporting a bogus 16550A compatible PCMCIA CARD stuffs
- IIR_TXRDY is never off even if reading a IIR register.
    - Know as PIAFS "Palido 321S", "DC-*S" oemed by Sharp corp.

 2. Omiting a restrict probing if it's already probed by pccardd.
    Note: Define a new id_flags as follows

           0x40000 - NO PROBE (Already probed as serial)
           0x80000 - Has a bogus IIR_TXRDY register

	Sato Junichi <junichi@astec.co.jp>
	Nrihiro Kumagai <kuma@slab.tnr.sharp.co.jp>
	Hirao Tetsuya <ai.cs.fujitsu.co.jp>
	Toshiharu Asai <asai@mbc.infoshere.or.jp>
	Shin'ya Kumabuchi <kumabu@t3.rim.or.jp>
        Freebsd-users-jp@jp.freebsd.org
	bsd-nomads@ai.cs.fujitsu.co.jp
1998-01-08 04:53:43 +00:00
bde
c4f9529d8c Fixed initialization of the divisor latch. We depended on siocnopen()
initializing it for the (usual) (siocniobase != 0) case, but
siocnopen() doesn't initialize it if the latch registers already
have the correct values.
1997-12-28 06:36:35 +00:00
bde
6923614d1d Always call ttwwakeup() before returning from comstart(). It isn't
necessary to call it when the tty layer's output state has not been
changed, but siostop() sometimes changes the TS_BUSY state and then
calls comstart() mainly for its side effect of calling ttwwakeup().
1997-12-28 06:20:47 +00:00
eivind
01dd6091ed Make COMPAT_43 and COMPAT_SUNOS new-style options. 1997-12-16 17:40:42 +00:00
bde
e868842f11 Use ENOIOCTL instead of -1 (= ERESTART) for tty ioctls that are
not handled at a particular level.  This fixes mainly restarting
of interrupted TIOCDRAINs and TIOCSETA{W,F}s.
1997-12-06 13:25:01 +00:00
nate
35689e7efe - Renamed <pccard/card.h> -> <pccard/cardinfo.h>.
Forgotten by:		me
Reminded by:		Bruce
1997-11-20 15:48:41 +00:00
nate
f792549af6 - MF22: (I reversed these). Simplify code. 1997-11-02 21:26:14 +00:00
nate
fa55951ed5 - Instead of relying on a functional call to register PCARD-capable drivers,
use a Linker Set.  Note, if a driver is loaded as an LKM  if will have
  to use the function call, but since none of the existing drivers
  are loadable, this made things cleaner and boot messages nicer.

Obtained from:	PAO-970616
1997-10-26 21:08:42 +00:00
nate
2f55d3018b - Functional changes to PCCARD support.
* Kill individual drivers 'suspend' routines, since there's no simple/safe
   way to suspend/resume a card w/out going through the complete probe
   at initialization time.
 * Default to using the apm_pccard_resume sysctl code, which basically
   pretends the card was removed, and then re-inserted.  Suspend/resume
   is now 'emulated' with a fake insert/removal.  (Hence we no longer
   need the driver-specific suspend routines.)
1997-10-26 04:54:16 +00:00
nate
c68183d0b8 - Do a bunch of gratuitous changes intended to make the code easier to
follow.
 * Rename/reorder all of the pccard structures, change many of the member
   names to be descriptive, and follow more closely other 'bus' drivers
   naming schemes.
 * Rename a bunch of parameter and local variable names to be more
   consistant in the code.
 * Renamed the PCCARD 'crd' device to be the 'card' device
 * KNF and make the code consistant where it was obvious.
 * ifdef'd out some unused code
1997-10-26 04:36:24 +00:00
phk
36e7a51ea1 Last major round (Unless Bruce thinks of somthing :-) of malloc changes.
Distribute all but the most fundamental malloc types.  This time I also
remembered the trick to making things static:  Put "static" in front of
them.

A couple of finer points by:	bde
1997-10-12 20:26:33 +00:00
gibbs
e1b0aaaa76 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
jmg
13be81370a teach sio how to attach to isa PnP cards. This is mainly for use with
internal modems.  Currently detects a USR modem, and a couple Supra
modems...  vendor id's for sio capabile cards welcomed...

document new option EXTRA_SIO that will increase sio's internal data
structures to support X more serial ports...  these are used by the
PnP part of sio for attaching...  If you don't have it specified, it
will default to 2...  This is defaulted to 0 if you don't have PnP
compiled into your kernel...

also document that if you set the PnP flags (pnp x flags y) to 0x1 that
the modem will be refused to be recognized by the sio driver... this
is for people that want the traditional isa driver to probe and attach
the modem... (for keeping legacy sio numbering)
1997-09-19 15:25:49 +00:00
peter
796eb5ce0a Update select -> poll in drivers. 1997-09-14 03:19:42 +00:00
fsmp
e771ecca0f General cleanup of the sub-system locking macros.
Eliminated the RECURSIVE_MPINTRLOCK.
clock.c and microtime use clock_lock.
sio.c and cy.c use com_lock.

Suggestions by:	Bruce Evans <bde@zeta.org.au>
1997-09-01 07:45:37 +00:00
fsmp
92287f9b58 Created a private simple_lock to control accesses to com data structs
and hardware.
There is now another simple_lock around clock data/hardware accesses in
clock.c and microtime.s.  It is my belief that this is the only area
sio/cy might stumble into during an unblocked INTerrupt.  Thus I separated
the sio/cy code from the generic disable_intr()/enable_intr() routines.

Controlled by smptests.h: USE_COMLOCK, ON by default.
1997-08-31 03:17:18 +00:00
fsmp
e2310cdbcf Another round of lock pushdown.
Add a simplelock to deal with disable_intr()/enable_intr() as used in UP kernel.
UP kernel expects that this is enough to guarantee exclusive access to
regions of code bracketed by these 2 functions.
Add a simplelock to bracket clock accesses in clock.c: clock_lock.

Help from:	Bruce Evans <bde@zeta.org.au>
1997-08-30 08:08:10 +00:00
fsmp
7511b8f464 Fixed a warning about undefined isa_irq_pending(). (UP kernel only) 1997-08-21 06:16:12 +00:00
fsmp
21623b13bc Moved the COM_LOCK and COM_UNLOCK macros to machine/param.h. 1997-08-21 05:47:25 +00:00
fsmp
2c414e3eff Preperation for moving cpl into critical region access.
Several new fine-grained locks.
New FAST_INTR() methods:
 - separate simplelock for FAST_INTR, no more giant lock.
 - FAST_INTR()s no longer checks ipending on way out of ISR.
sio made MP-safe (I hope).
1997-08-20 05:25:48 +00:00
fsmp
315ebe1a90 Added include of intr_machdep.h to eliminate compiler warning for APIC_IO. 1997-08-04 19:12:54 +00:00
bde
26179d3e8d Removed unused #includes. 1997-07-20 14:10:18 +00:00
dyson
926b6969fa Add some support for the 16650 type UARTS. 1997-07-17 06:01:15 +00:00
pst
d3c9fa6b5e Bring back CONSPEED as a last-ditch default if you can't change the speed
any other way.

Requested by: dfr
1997-06-04 16:25:15 +00:00
pst
21afca66c6 If the boot blocks were using the serial port, read the system console
speed using the boot blocks, instead of a hardcoded value stuck in the
kernel.  This way, you can have systems using the same kernel but different
console speeds.

Add a sysctl entry for changing the system console speed.
Lock the user tty speed to match the system console speed.

Nuke CONSPEED.
Reviewed by:	bde
1997-06-04 04:52:40 +00:00
phk
f5c480f8c2 I've given up on the idea of sizing FIFO's. You can set it with a flag
value now, if you know that you have a fifo deeper than 16.
1997-06-01 20:42:01 +00:00
peter
37a0f54086 No longer need opt_smp.h here 1997-05-29 05:00:35 +00:00
phk
b267ceab3d Whoops, missed a zero there. Flags 0x10000 it is. 1997-05-18 21:22:11 +00:00
phk
bdc03328fb Flags 0x1000 on sio now disables the dreaded test#3.
PR:		3395
1997-05-18 21:19:04 +00:00
phk
051d52fdad Detect various supersets of 16550A based on fifo depth.
PR:		i386/3523
Reviewed by:	phk
Submitted by:	vak@cronyx.ru
1997-05-18 20:53:52 +00:00
peter
6323aa10bf Man the liferafts! Here comes the long awaited SMP -> -current merge!
There are various options documented in i386/conf/LINT, there is more to
come over the next few days.

The kernel should run pretty much "as before" without the options to
activate SMP mode.

There are a handful of known "loose ends" that need to be fixed, but
have been put off since the SMP kernel is in a moderately good condition
at the moment.

This commit is the result of the tinkering and testing over the last 14
months by many people.  A special thanks to Steve Passe for implementing
the APIC code!
1997-04-26 11:46:25 +00:00
bde
385cd60e05 Don't call timeout() for DTR wakeup or busy check if the relevant timeout
is already active.  This fixes "timeout table full" panics under 100%
interrupt load and other weird conditions.
1997-04-18 18:28:09 +00:00
bde
65125ed0f6 Removed defaults for dead options CONADDR and CONUNIT. 1997-04-05 13:15:50 +00:00
bde
2c1d5635c4 Use device flags instead of options for serial console configuration
(see LINT).  There is a new low-level console type that is more suitable
for use with gdb-remote.

Fixed setting of speed at probe time for the serial console (if any).

Reviewed by:	dfr
1997-04-05 13:11:27 +00:00
bde
117209856b 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
bde
0d3591bdbd 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
94b6d72794 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
bde
ae22a22184 Fixed the SMC fifo bug fix. sioopen() hung while input was streaming in
with <= 100 usec between each character arrival time.  This didn't happen
until rev.1.75 of clock.c because DELAY(100) used to delay for closer to
80 usec than 100 usec, and the minimum time between character arrivals is
87.8 usec at the maximum supported speed of 115200 bps 8N1.

Clear DCD timestamp flag on close (the input timestamp flag is already
cleared).
1997-02-01 16:04:16 +00:00
bde
637e1706b9 Fixes and workarounds for Hayes ESP:
- don't uselessly initialize the fifo "DMA" bit at attach time.
- initialize the fifo "DMA" bit at open time.  Without this, the device
  interrupts for every character received, reducing input performance
  to that of an 8250.
- don't uselessly initialize the fifo trigger level to 8 (scaled to
  256) at attach time.
- don't scale the fifo trigger level to 512 bytes.  The driver's pseudo-
  dma buffer has size 256, so it can't handle bursts of size 512 or 256.
  It should be able to handle the second lowest ftl (2 scaled to 64).
- don't reset the fifos in siostop().  Reset triggers a hardware bug
  involving wedging of the output interrupt bit  This workaround
  unfortunately requires ESP support to be configured.
1997-01-29 21:50:02 +00:00
jkh
808a36ef65 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
bde
3ba43f51b4 Use breakpoint() instead of Debugger() in siointr1(). Debugger() doesn't
work in fast interrupt handlers because it calls db_printf() which uses
%es for string stuff and %es isn't initialized.
1996-12-23 19:57:33 +00:00
bde
168274b4d6 Fixed input of BREAKs when IGNPAR is set and IGNBRK is not set. BREAKs
are always together with Framing Errors and they were incorrectly
treated as FE's and discarded.

Reorganized the BREAK/FE/PE tests.

Found by:	NIST-PCTS
1996-11-30 15:52:56 +00:00
bde
87d2c32ceb Reset h/w fifos (if any) in siostop(). Now ttyflush() works fairly well
with sio devices (not perfectly, since there is no way to flush the tx
holding register on 8250-16450's.  I'm not sure if resetting the fifos
flushes the tx shift register).

Reminded by:	NIST-PCTS
1996-11-30 15:29:31 +00:00
bde
e7c48f3870 Fixed sloppy clearing of TS_BUSY. Don't clear it until the transmitter
is completely empty.  There is no interrupt for output completion, so
poll for it every 10 ms after output is nearly complete.  Now ttywait()
works right.

Reminded by:	NIST-PCTS
1996-11-30 15:19:19 +00:00
bde
b456a83743 Throw away input if CREAD is not set. POSIX requires no characters to be
received in this case even if the hardware doesn't have a CREAD bit.

Found by:	NIST-PCTS
1996-11-30 15:03:05 +00:00
bde
7b61f45bf3 Cleaned up CONSPEED changes. `comdefaultrate' gives the default
speed for the "com" console, not for general purpose "com" ports,
so there was no need to split it into comdefaultrate and condefaultrate.
1996-11-30 14:51:04 +00:00
bde
9f1b68b597 Don't fiddle with RTS if RTS flow control is off. This gives applications
almost complete control over RTS (control of its initial value is still
missing).

This fixes PR 1644 for sio.

The author of PR 1644 wants it in 2.1.6 and 2.2.  This may be safe since
the complications are only in rarely used cases that I hope I've covered.
1996-11-13 18:31:57 +00:00
pst
2ccb731676 add in CONSPEED option which controls console serial port speed 1996-11-02 02:26:06 +00:00
bde
b5f59abb8b Work around UMC8669F and Startech UART bugs by not writing to the
divisor latch registers if the registers wouldn't change.

Use the default console cfcr setting while setting the divisor
latch registers for console i/o.  Input may be messed up by
transiently changing the cfcr.

Use a usual cfcr setting while setting the divisor latch registers
in the probe.  This shouldn't matter, but this is not the place to
test the UART's handling of 5 bit words.

Removed a stale devfs comment.
1996-09-30 12:22:27 +00:00
bde
c51d5ab188 Changed cncheckc() interface so that it is 8-bit clean - return -1
instead of 0 if there is no input.

syscons.c:
Added missing spl locking in sccncheckc().  Return the same value as
sccngetc() would.  It is wrong for sccngetc() to return non-ASCII, but
stripping the non-ASCII bits doesn't help.
1996-09-14 04:27:46 +00:00
phk
bca885205d Remove devconf, it never grew up to be of any use. 1996-09-06 23:09:20 +00:00
julian
88c897a67d some internal modems need LOTS of time to generate an interrupt
on demand.. increase DELAY from 1000 uS to 10000uS
1996-07-17 22:07:23 +00:00
bde
4e855e9322 Added support for TIOCDCDTIMESTAMP (enable/get timestamp of last DCD rise).
Original version by John Hay.

Simplified timestamp code by reading the time exactly when necessary.
This may slow down the interrupt handler with extra calls to microtime(),
but only in bad configurations - the input fifo should normally be
disabled if timestamps on input are being used, since otherwise the
timestamp won't be precisely associated with any particular input event.
The interrupt handler remains slowed down by one test and branch for
each input (and now DCD change) event - avoiding this is not practical
yet.

The simplifications also fixed:
- timestamps for input sometimes being clobbered by output and modem
  status interrupts.
- valid timestamps not being available unless the port is configured with
  vector siointrts.  siointrts no longer exists.
- compiler warnings about siointr* in some configurations.

Simplified timestamp and probe code by depending on recent changes in
microtime() and DELAY() to preserve the interrupt enable flag.
1996-06-17 14:23:39 +00:00
phk
7bfc0101cb KGDB is dead. It may come back one day if somebody does it. 1996-05-02 09:34:51 +00:00
nate
d41d7b99af Format the already applied PCCARD additions to use KNF form. No
functional changes.
1996-04-23 18:36:56 +00:00
bde
a8973daccf Another try: fixed bogus change of the fifo settings for the non-speed of 0.
rev.1.30 incorrectly changed the behaviour from always disabling the fifo
to always enabling it.
1996-04-13 14:55:18 +00:00
bde
de77142595 Moved AUTO_EOI_[12] and most sio and pcvt options out of the makefile. 1996-04-11 21:18:49 +00:00
scrappy
ca60561595 removed RS_IBUFSIZE #ifndef - have been informed it was a bad idea 1996-04-10 18:09:58 +00:00
scrappy
563a581ee6 Placed an #ifndef around RS_IBUFSIZE so that it can be changed in the
config file ... PR#528 is reportly fixed by adding 'options RS_IBUFSIZE=1024'
to the config file
1996-04-10 04:18:36 +00:00
bde
c8f7ae16bf Fixed ownerships of callout devices. 1996-03-27 20:03:32 +00:00
bde
24e4ca7828 Added some delays to the probe. This might fix some incompatible UARTs
(the ones that take more than a few hundred nsec and less than 1 msec to
switch their IRQ output).
1996-02-25 21:10:54 +00:00
phk
8891fd7f8c Avoid local sprintfs and other printf'isms. 1996-01-25 07:21:50 +00:00
wollman
39d3a9a3d3 Convert DDB to new-style option. 1996-01-04 21:13:23 +00:00
bde
e083626a92 Restored likely_com_ports[] from rev.1.122 so that Hayes ESP support at
least compiles.
1995-12-30 03:52:58 +00:00
bde
a1ea079977 Added support for the Hayes ESP serial card.
Submitted by:	Sean Eric Fagan (sef@kithrup.com)
Based on code by John Vinopal (banshee@resort.com)
Cosmetic (I hope) changes by me (bde).
1995-12-29 12:51:32 +00:00
bde
2aec697e08 Fixed bugs introduced in rev. 1.127 (some broken 16650 support was
unintentionally committed):
- the fifo was completely disabled for low speeds.  Apart from being
  unnecessarily inefficient, this invalidated com->tx_fifo_size.
- `ftl' became a bogus name.
- the 16650 probe breaks the COM_NOFIFO() case and has other bugs
  (disabled, not fixed).

Fixed bogus change of the fifo settings for the non-speed of 0.  This
bug made the above fifo bug occur even at non-low speeds.

Fixed the modes of the cua devices.  It isn't possible to set the uid
and gid correctly since the kernel can't know who uucp.dialer is.

Register the devswitch at device attach time.  SYSINIT() is not
the right way to initialize devswitches (if anything :->).
Eventually, the devswitch should be deregistered at device detach
and/or unload time and reregistered at device attach time ...  Then
some com->gone tests could be removed.

Cleaned up some other recent changes.
1995-12-22 14:58:55 +00:00
bde
644a38f2a8 Replaced nxreset by noreset (if the reset function gets called, then the
device must be configured.  It's hard to tell whether a reset function
should be noreset or nullreset since reset functions are never called.
Most drivers use nullreset but noreset has the advantage of complaining
if somehow gets called).
1995-12-10 20:54:38 +00:00
bde
99e5039c72 Removed new alias d_size_t for d_psize_t.
Removed old aliases d_rdwr_t and d_ttycv_t for d_read_t/d_write_t and
d_devtotty_t.

Sorted declarations of switch functions into switch order.

Removed duplicated comments and declarations of nonexistent switch
functions.
1995-12-10 15:55:34 +00:00
phk
e7008a284e Staticize and cleanup. 1995-12-10 13:40:44 +00:00
phk
a69d1dfbcb Julian forgot to make the *devsw structures static. 1995-12-08 23:23:00 +00:00
julian
1900eea896 Pass 3 of the great devsw changes
most devsw referenced functions are now static, as they are
in the same file as their devsw structure. I've also added DEVFS
support for nearly every device in the system, however
many of the devices have 'incorrect' names under DEVFS
because I couldn't quickly work out the correct naming conventions.
(but devfs won't be coming on line for a month or so anyhow so that doesn't
matter)

If you "OWN" a device which would normally have an entry in /dev
then search for the devfs_add_devsw() entries and munge to make them right..
check out similar devices to see what I might have done in them in you
can't see what's going on..
for a laugh compare conf.c conf.h defore and after... :)
I have not doen DEVFS entries for any DISKSLICE devices yet as that will be
a much more complicated job.. (pass 5 :)

pass 4 will be to make the devsw tables of type (cdevsw * )
rather than (cdevsw)
seems to work here..
complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
bde
369f41ad46 Removed unnecessary #includes of <sys/user.h>. Some of these were just
to get the definitions of TRUE and FALSE which happen to be defined in
a deeply nested include.

Added nearby #includes of <sys/conf.h> where appropriate.
1995-12-06 23:44:23 +00:00
bde
71abdb8aca Removed builtin list of port addresses. The address for sio3
conflicted with S3 graphics cards.  Now users should put sio[2-3]
in the config file if the hardware exisst, even if the probe is
certain to fail due to an interrupt conflict.  Otherwise, ports
sharing the interrupt may fail the probe if the system is warm
booted while sio[2-3] are active (perhaps under another OS).  The
same problem for nonstandard ports is now handled better than
before.
1995-11-29 15:00:07 +00:00
julian
198d88e0ae If you're going to mechanically replicate something in 50 files
it's best to not have a (compiles cleanly) typo in it! (sigh)
1995-11-29 14:41:20 +00:00
julian
f2f63c6ece OK, that's it..
That's EVERY SINGLE driver that has an entry in conf.c..
my next trick will be to define cdevsw[] and bdevsw[]
as empty arrays and remove all those DAMNED defines as well..

Each of these drivers has a SYSINIT linker set entry
that comes in very early.. and asks teh driver to add it's own
entry to the two devsw[] tables.

some slight reworking of the commits from yesterday (added the SYSINIT
stuff and some usually wrong but token DEVFS entries to all these
devices.

BTW does anyone know where the 'ata' entries in conf.c actually reside?
seems we don't actually have a 'ataopen() etc...

If you want to add a new device in conf.c
please  make sure I know
so I can keep it up to date too..

as before, this is all dependent on #if defined(JREMOD)
(and #ifdef DEVFS in parts)
1995-11-29 10:49:16 +00:00
julian
67727fc1c1 the second set of changes in a move towards getting devices to be
totally dynamic.

this is only the devices in i386/isa
I'll do more tomorrow.
they're completely masked by #ifdef JREMOD at this stage...
the eventual aim is that every driver will do a SYSINIT
at startup BEFORE the probes, which will effectively
link it into the devsw tables etc.

If I'd thought about it more I'd have put that in in this set (damn)
The ioconf lines generated by config will also end up in the
device's own scope as well, so ioconf.c will eventually be gutted
the SYSINIT call to the driver will include a phase where the
driver links it's ioconf line into a chain of such. when this phase is done
then the user can modify them with the boot: -c
config menu if he wants, just like now..
config will put the config lines out in the .h file
(e.g. in aha.h will be the addresses for the aha driver to look.)
as I said this is a very small first step..
the aim of THIS set of edits is to not have to edit conf.c at all when
adding a new device.. the tabe will be a simple skeleton..

when this is done, it will allow other changes to be made,
all teh time still having a fully working kernel tree,
but the logical outcome is the complete REMOVAL of the devsw tables.

By the end of this, linked in drivers will be exactly the same as
run-time loaded drivers, except they JUST HAPPEN to already be linked
and present at startup..
the SYSINIT calls will be the equivalent of the "init" call
made to a newly loaded driver in every respect.

For this edit,
each of the files has the following code inserted into it:

obviously, tailored to suit..
----------------------somewhere at the top:
#ifdef JREMOD
#include <sys/conf.h>
#define CDEV_MAJOR 13
#define BDEV_MAJOR 4
static void 	sd_devsw_install();
#endif /*JREMOD */
---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT
#ifdef JREMOD
        sd_devsw_install();
#endif /*JREMOD*/
-----------------------at the bottom:
#ifdef JREMOD
struct bdevsw sd_bdevsw =
	{ sdopen,	sdclose,	sdstrategy,	sdioctl,	/*4*/
	  sddump,	sdsize,		0 };

struct cdevsw sd_cdevsw =
	{ sdopen,	sdclose,	rawread,	rawwrite,	/*13*/
	  sdioctl,	nostop,		nullreset,	nodevtotty,/* sd */
	  seltrue,	nommap,		sdstrategy };

static sd_devsw_installed = 0;

static void 	sd_devsw_install()
{
	dev_t descript;
	if( ! sd_devsw_installed ) {
		descript = makedev(CDEV_MAJOR,0);
		cdevsw_add(&descript,&sd_cdevsw,NULL);
#if defined(BDEV_MAJOR)
		descript = makedev(BDEV_MAJOR,0);
		bdevsw_add(&descript,&sd_bdevsw,NULL);
#endif /*BDEV_MAJOR*/
		sd_devsw_installed = 1;
	}
}
#endif /* JREMOD */
1995-11-28 09:42:06 +00:00
bde
e15706373f Restored static variable `nsio_tty' which is used only by pstat(8). Made
it `const' to inhibit compiler warnings.

Added #include of <pccard/driver.h> to get prototypes.  <pccard/slot.h>
is still necessary for its side effect of exporting non-slot things.
1995-11-21 09:15:04 +00:00
phk
220a07c995 Fix compiler warnings. 1995-11-20 12:13:32 +00:00
bde
6073486300 Added `#include "ioconf.h"' to <machine/conf.h> and cleaned up the
misplaced extern declarations (mostly prototypes of interrupt handlers)
that this exposed.  The prototypes should be moved back to the driver
sources when the functions are staticalized.

Added idempotency guards to <machine/conf.h>.  "ioconf.h" can't be
included when building LKMs so define a wart in bsd.kmod.mk to help
guard against including it.
1995-11-04 17:08:13 +00:00
bde
336a6f070b Moved prototypes for devswitch functions from conf.c and driver sources
to <machine/conf.h>.  conf.h was mechanically generated by
`grep ^d_ conf.c >conf.h'.  This accounts for part of its ugliness.  The
prototypes should be moved back to the driver sources when the functions
are staticalized.
1995-11-04 13:25:33 +00:00
bde
2b02753359 sio.c:
Fix the tests for being a console by reverting to the ones that
were used before the the RB_SERIAL changes.  RB_SERIAL only needs
to be tested in one place.  The initialization of comconsole was
wrong before the RB_SERIAL changes for the COMCONSOLE case.  This
may have been the cause of the unnecessary changes.

Start eliminating #includes of <i386/i386/cons.h>.  This header is
supposed to be included from <machine> although it should be
completely machine-independent and included from <sys>.

Remove a wrong XXX comment.  `comconsole' is used to test for being
a console and even the tests for deciding the default termios state
are necessary (the semi-reentrant i/o routines don't handle ordinary
device i/o).

cy.c:
Sync with sio.c.  The console tests are present but always fail.
1995-10-22 15:38:08 +00:00
phk
6d6a401f8b A mixed bag of changes, relating to getting the state in "lsdev" right,
and pccard support to work sensibly.  Better by far, but still not good.
1995-10-21 00:55:36 +00:00
dg
8791f3d54e siostop() is a void function, so don't return a value. 1995-09-24 04:59:16 +00:00
phk
c042686c77 The stuff needed to remove a pccard with a sio port on it...
Not optimal, but pretty solid.
1995-09-19 12:37:41 +00:00
phk
cb797b9f3a Andrew McRae's pcmcia/pccard code, the kernel part.
This is still very green, but I have managed to get my modem working.
Lots of work still to do, but now at least we can commit it. /phk

Reviewed by:	phk
Submitted by:	Andrew McRae <andrew@mega.com.au>
1995-08-24 08:56:20 +00:00
bde
567c62b040 Disable fifos in sioclose(). Closes PR 576. 1995-08-13 07:49:35 +00:00
bde
17d6fa2126 Sleep on a better address to wait for output to drain out of the
hardware.  Set the sleep-on flag for the address so there is more
than a small chance that the sleep address is actually used (this
used to work by timing out).  Don't bother clearing the sleep-on
flag after a timeout here or elsewhere since leaving it set just
generates a few null calls to wakeup().
1995-07-31 21:10:36 +00:00
bde
105a5302c8 Improve input flow control.
Use input buffer watermarks of TTYHOG-512 (high) and (high)*7/8
(low) instead of TTYHOG/2 (high) and TTYHOG/5 (low) to agree with
some drivers.  512 is magic and some things depended on TTYHOG/2
>= TTYHOG-512 to work; now they depend on the 512 magic not changing
and TTYHOG-512 being significantly larger than 0.  This should be
handled in ttsetwater().

Separate the decision about whether to do input flow control from
doing it.  ttyblock() now just starts input flow control (hardware
and/or software) and there is a new function ttyunblock() to stop
it.  The decisions are the same except for the watermark changes
and allowing for input expansion for PARMRK.

When flushing input, try harder at first to send a start character
if required, but give up if the first attempt fails.

cy.c, rc.c, sio.c:
Simplify: let ttyinput() handle input flow control if it is not
being bypassed.  Use ttyblock() to start flow control otherwise.

rc.c:
Use same input flow control test as elsewhere: test in a more
efficient order and start flow control at >= highwater instead of
at > highwater.
1995-07-31 18:29:51 +00:00
bde
76510cf9d2 Don't let IXOFF or ECHONL stop the setting of TS_CAN_BYPASS_L_RINT. IXOFF
is handled at a low level, and ECHONL only applies if ICANON is set,
although tty.c sometimes bogusly applies it when ICANON isn't set.
1995-07-29 08:33:13 +00:00
bde
fc1f58e6bb Always wake up writers after clearing TS_BUSY. This will soon be
essential when I fix excessive wakeups for output-below-low-water.
In cy.c and sio.c, wake up via the driver start routine to also
eliminate duplicated code involving the clearing of TS_TTSTOP.

Always (except in code to be replaced soon) call driver start
routine directly instead of going through ttstart().
1995-07-29 04:05:57 +00:00
bde
35509aece9 Obtained from: partly from ancient patches of mine via 1.1.5
Give names to the magic tty i/o sleep addresses and use them.  This makes
it easier to remember what the addresses are for and to keep them unique.
1995-07-22 16:45:22 +00:00
bde
688f94b143 Move the inline code for waking up writers to a new function
ttwwakeup().  The conditions for doing the wakeup will soon become
more complicated and I don't want them duplicated in all drivers.

It's probably not worth making ttwwakeup() a macro or an inline
function.  The cost of the function call is relatively small when
there is a process to wake up.  There is usually a process to wake
up for large writes and the system call overhead dwarfs the function
call overhead for small writes.
1995-07-22 01:30:45 +00:00
bde
94cb7648d6 Obtained from: partly from ancient patches of mine via 1.1.5
Move static termioschars() from a couple of drivers to tty.c.  Now there
is only one copy of ttydefchars[].
1995-07-21 22:52:01 +00:00
bde
c2bda5b590 Fix error logging:
- get the timeout countdown right
- report everything before turning timeouts off.
1995-07-05 14:30:07 +00:00
ache
6b90340edb Fight with hanging modems continued:
return EIO after t_timeout expired instead infinite looping in "siotx"
in comparam, consuming CPU time.
1995-06-28 17:58:14 +00:00
bde
6b1a9bd0a2 Reduce timeout frequency from `hz' to 0 if no ports are open or to 1 if
no ports are active, provided there are no polled ports and no
`LOSESOUTINTS' ports.  Do a little more in the interrupt handler instead.
This is a little less efficient if there are are many active ports but
a little more efficient otherwise.  Polled ports are ones with no irq
specified (as before).  `LOSESOUTINTS' ports are ones with 0x08 set in
their config flags.  Unless this flag is set, it will now take up to one
second to recover from lost output interrupts, if any.  Some 8250s and
16450s lose output interrupts.

Improve output buffering: copy the clist buffer to 2 linear buffers if
necessary and possible instead of to 1.  Handle an arbitrary queue of
buffers in the interrupt handler.  Check for waking up sleepers after
copying characters out of the clist buffer instead of before.

Delay translation of TIOCM_DTR to MCR_DTR etc. so that the top level
routines are more machine independent.

Fix bogus device register in unused code.
1995-06-25 04:51:01 +00:00
rgrimes
c86f0c7a71 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
rgrimes
0e1db07cf9 Fix -Wformat warnings from LINT kernel. 1995-05-11 19:26:53 +00:00
ache
125aa8907e Add hook for pstat -t 1995-05-07 23:00:02 +00:00
bde
bca0e031b5 Move declarations of console functions to cons.h (they should be
config(8)ed).

Update other misplaced prototypes.
1995-04-23 12:41:57 +00:00
bde
2b606ed43f Fix initializations of kdc_state for serial consoles.
Change order of RTS flow control tests so that less tests are required
in the usual case.

Clean up parts of previous commits.  Cosmetic.
1995-04-15 21:45:16 +00:00
wollman
7e90d0e2aa Forgot two things in yesterday's massive devconf update:
initialized class for sio
don't bogusly re-initialize it in sio_registerdev()
1995-04-13 15:03:29 +00:00
ache
fdacac9026 Move setcompat code to another place, initial/locked devices
not supposed to work with old style ioctls
1995-04-13 11:11:11 +00:00
ache
84030e5de8 Comment out ttcompat via COMPAT_SUNOS too
Fix error handling initial/callout devices
1995-04-13 09:22:40 +00:00
phk
1ffa98c382 ttsetcompat is a '#ifdef COMPAT_43' feature.
Dropping into the debugger when a break comes down the serial line is a
>MISFEATURE (1st class)< and has been put under it's own #ifdef.  This
should be a magic sequence of chars instead.
1995-04-12 22:00:41 +00:00
wollman
6a8d3a357d Add a class field to devconf and mst drivers.
For those where it was easy, drivers were also fixed to call
dev_attach() during probe rather than attach (in keeping with the
new design articulated in a mail message five months ago).  For
a few that were really easy, correct state tracking was added as well.
The `fd' driver was fixed to correctly fill in the description.
The CPU identify code was fixed to attach a `cpu' device.  The code
was also massively reordered to fill in cpu_model with somethingremotely
resembling what identifycpu() prints out.  A few bytes saved by using
%b to format the features list rather than lots of ifs.
1995-04-12 20:48:13 +00:00
ache
2486829178 Call new ttsetcompat() function for proper working
old v7 ioctls with locking bits.
1995-04-11 17:58:09 +00:00
ache
4a06ed7d30 Move unit structure member down to optimize com->state per Bruce
suggestion. Move hotchar setting to set_bypass routine and rename it
to disc_optim
1995-04-04 16:26:04 +00:00
ache
20dc61c2a1 Allow serial console BREAK to DDB
Use com->unit in several places
1995-04-03 10:29:14 +00:00
ache
eab75a8312 Back out changes related to locked bits until more elegant
solution will be found. Remove some unused variables sneaked in.
1995-04-02 19:28:58 +00:00
ache
6f677cd55f Fix error:
old type (stty) ioctls can easily bypass locking bits.
It involves manual conversion from old ioctls to new ones,
large piece of code duplicated from tty_compat.c
1995-04-02 04:21:09 +00:00
ache
c52ef7084e Move SET_BYPASS macro to function per Bruce suggestion.
Add set_bypass() call after l_close.
Move ttioctl()/set_bypass() pair under spltty() protection
1995-04-02 01:47:06 +00:00
ache
f8689ba88f Move setting BYPASS state to macro, use it in several times,
after ttioctl too, because it can change t_line.
Remove (TS_CNTTB | TS_LNCH) test, it is always inherits from
old tty mode and can't be reach in currently setted mode.
1995-04-01 23:56:08 +00:00
ache
141a7c0b20 Adjust TS_CAN_BYPASS_L_RINT state after l_open(), t_line
can be changed there.
1995-04-01 22:57:43 +00:00
ache
f73cd7c9f1 Use new TS_CAN_BYPASS_L_RINT state to avoid complex test
each time.
Remove unefficient loop of zeroing error chars in siopoll(),
now done at interrupt level.
1995-04-01 12:01:13 +00:00