CVS log for src/sys/arch/mac68k/dev/adb_direct.c

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Keyword substitution: kv
Default branch: MAIN

Remove duplicate "when" word in comments.

Fix up the mac68k interrupt handlers to work with the new style common
clockframe layout and remove the CLOCK_FORMAT0 work-around.  As a nice
side-effect, this also eliminates the super-sketchy stack unwinding used
by rtclock_intr to get at the interrupt stack frame.

s/anthing/anything/ and s/be to/too/ in comments.

s/ for for / for / in comment.

Sync with HEAD

Synch with HEAD

no need to include <machine/param.h> if <sys/param.h> already included

update from HEAD

src is too big these days to tolerate superfluous apostrophes.  It's
"its", people!

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

Mark potentially unused variable

Make sure we don't accidently pass an unsolicited packet as "ack only"
(which would dereference unitialized pointers)

Remove set but unused variables.

Sync with HEAD.

adb_read_date_time: remove an unused variable.

Sync with HEAD.

Factor out ADB spin-wait timeout loop, and use it for synchronous
operations to access the PRAM RTC, etc. in the IIsi and Cuda cases.
Thanks to Martin Husemann for pointing out the flaw.

This is a slightly more thorough workaround for the issue Martin found
in PR 37611, as it affected more than just adb_read_date_time().

Add timeout to busy loops waiting for ADB command completition.
Turns the hard hang in PR port-mac68k/37611 into a warning.

sync with HEAD

Sync with HEAD.

Sync with HEAD.

sync with head

Sync with HEAD.

Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

sync with HEAD

Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree.  Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches.  The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Sync with HEAD

sync with head.

Sync with head.

Sync with head.

Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

Sync with HEAD.

MI softintr(9)'fy.
Probably problematic, but LC630 is running at single user.

sync with head.

Sync with head.

Remove duplicate #includes, patch contributed in private mail
by Slava Semushin <slava.semushin@gmail.com>.

To verify that no nasty side effects of duplicate includes (or their
removal) have an effect here, I've compiled an i386/ALL kernel with
and without the patch, and the only difference in the resulting .o
files was in shifted line numbers in some assert() calls.
The comparison of the .o files was based on the output of "objdump -D".

Thanks to martin@ for the input on testing.

Sync with head.

sync with head.

sync with head.

s/independant/independent/, from Zafer.

sync with head

Merge from HEAD.

sync with head.

sync with head.

Rename shadowing time variable.

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

Fixes for volatile problems

Sync with HEAD.

de-__P, remove register, ansify, b* -> mem*.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

__KERNEL_RCSID()

Catch up to -current

Support internal ADB keyboard of PowerBook 190,190cs.
The keyboard works fine now. I don't confirm working internal
ADB track pad.

But an internal IDE drive is not recognized, and
an internal SCSI host controller(sbc driver) don't work yet.

catch up with -current.

catch up with -current on kqueue branch

Catch up to -current.

- Don't use multi-line string literals.
- Statements must follow labels.

Catch up to -current.
(CVS: It's not just a program. It's an adventure!)

Catch up with -current.

Fix up a bug which PB150 shuts down when one boots up in progress.
PB150 will work with SCSI disk. But we cannot use an internal IDE
disk yet.

Reviewed by briggs

Sync kqueue branch with -current.

Catch up to -current.

prepare for ELF:
 - add "%" prefix to register names in assembly code.
 - use _C_LABEL() where necessary.
 - use packed structures where necessary to match the old ABI.

Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.

Pull up rev 1.44 from scottr (approved by thorpej):
  Set up ADB hardware type before making decisions based on same.

Set up ADB hardware type before making decisions based on same.
This is part of PR 9852 from Daishi Kato.

Pull up rev 1.43 from scottr:
  Stabilize ADB support for some non-Apple ADB peripherals.

Stabilize ADB support for some non-Apple ADB peripherals.  This is the
second (and final) part of the fix for PR 10086.  (There are no longer
any infinite-wait busy loops in the ADB driver!)

New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
  resource allocation.
- Insertion and removal of callouts is constant time, important as
  this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.

Add and use macros to build ADB FLUSH, LISTEN, and TALK commands.

Check to make sure we get a valid handler ID in response to a TALK R3.

Low-level drivers, like the Power Manager driver, can get us into a major
funk when they misbehave and give us unexpected results.  Specifically:

 - Don't assume that the first free slot is at the top of the table if
   we can't find one.
 - Don't increment ADBNumDevices when backfilling "holes" left by devices
   that didn't respond to a TALK R3 during the initial device scan.
 - Don't assume that an address reassignment worked; make sure something
   responds on the new address before plowing forward.
 - If after device reassignment there are no free slots, make sure to
   indicate this fact.
 - Failing all else, handle the situation where we run out of slots in
   the device table -- which now should "never" happen -- gracefully.

While the Power Manager driver still sometimes misbehaves, it shouldn't
cause the system to crash/hang due to us walking off the end of the
device table.

Explicitly include headers needed by iopreg.h

Bracket disabled IIfx IOP code with #ifdef __notyet__, rather than
commenting it out or using #if 0.

Pull up to last week's -current.

Sync with main branch.

Apparently, the Mac TV is a re-packaged Performa 550.  Add code to
recognize this so that Mac TV users can finally ditch the MRG_ADB option.

Pull up revision 1.35 (requested by scottr):
  Make adbInCount volatile to fix problems uncovered by aggressive
  optimization.

Sync with main branch.

An interrupt handler may change adbInCount underneath us, so qualify the declaration
with volatile.  The bug didn't show its face until more agressive
optimization showed up, apparently a result of the last egcs upgrade.
(The interrupt handling changes from June have certainly also played
a part.)  Thanks to Ken'ichi Ishizaka for discovering the problem.

bring in latest KAME (as of 19991130, KAME/NetBSD141) into kame branch
just for reference purposes.
This commit includes 1.4 -> 1.4.1 sync for kame branch.

The branch does not compile at all (due to the lack of ALTQ and some other
source code).  Please do not try to modify the branch, this is just for
referenre purposes.

synchronization to latest KAME will take place on HEAD branch soon.

Pull up revision 1.34 (requested by scottr):
  Make it possible to have only one ADB device on machines with
  first-generation ADB hardware.  Fixes PR#7407.

Sync with main branch.

If there is only one ADB device, it will do us no good to avoid it
when guessing which device to poll next.  Resolves PR 7407, but the
bug is a lot older than that.

Pull up revisions 1.26-1.33 (via patch, requested by sr):
  Clean up the ADB driver, and eliminate duplicate keystrokes under
  heavy load, fixing PR#7870.

Sync with -current

Sync with main branch.

In the interrupt handlers, check adb_polling instead of
adb_initted to decide whether to handle 'recovered' interrupts
immediately.

Oops... last rev created an unused variable.  While here, clean up
adb_reinit()'s variables a bit, too.

Convert one more buffer copy that I missed in rev 1.28.

Always using polling for poweroff (from macppc).

ite_polling -> adb_polling

Convert buffer copies to memcpy().

Add more delay in adb_reinit() (from macppc).

Don't invoke the upper half handler unless we're still
initializing the ADB bus.  This fixes PR 7870.

file adb_direct.c was added on branch comdex-fall-1999 on 1999-11-06 22:25:21 +0000

Don't invoke the upper half handler unless we're still
initializing the ADB bus.  This fixes PR 7870.

[Redo] Sync with main branch.

Sync w/ -current.

Poll for serial interrupts.  Return to 3000us delay instead of 4000us in init.

Unfortunately, several changes that are intermingled:
- Add initial IOP support.  ADB doesn't work yet for me, but it's here so
  that others will be encouraged to work on it.  ADB_HW_IOP basically
  is configured as a NOP so that serial consoles will continue to work.
- Roll via1_intr and via2_intr into the intr.c scheme--this also required
  changing rtclock_intr to grovel the stack differently so that hardclock
  gets the right arguments and softclock() doesn't get all reentrant.
- Make via1 interrupts parallel to via2 interrupts--handlers get a pass-
  through pointer and we can register handlers.  Register via1 interrupt
  with intr_establish()--normally level 1, level 6 for A/UX scheme.
- Use intr_establish() to set real via2 interrupt handler instead of the
  hacked function pointer.
- Reorganize adb-direct interrupts so that a function call is removed.
- Implement A/UX interrupts for all Quadras right now.  We may need to
  special case some Quadras, but Linux folks are reporting success on
  several models.
- Fix intrnames to be accurate for the normal, PSC, and A/UX interrupt
  configurations.

Sync w/ -current.

pullup 1.22->1.23 (scottr): make auto power off work on Performa 58x's

Sync with main branch.

From Yasuhiro Endoh:  Performa 58x uses ADB soft poweroff.

pull up rev 1.22 from trunk (scottr)

Correct two more problems of the same type as in rev 1.21:  use the length
of the buffer you're copying from as the loop interator, not the length
of the buffer you're copying to.  Also, rewrite print_single() with
pointer instead of array operators.  Appears to correct some ADB-related
`hangs' during autoconfig.

Fix an obscure bug in send_adb_cuda() found be comparison with
the macppc version.

checkpoint:  input side code should work.  no output side yet.

o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839.  Patch supplied by
Frederick Bruckman <fb@enteract.com>

Make this compile _and_ link with DEBUG / ADB_DEBUG defined.

Allow this to compile with DEBUG defined.

Make it compile for MRG_ADB kernels.

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

New framework for handling processor interrupts, derived in part from
the hp300 port.

 - Interrupts 3-6 use this immediately.  Interrupt 7 is a special case,
   and the VIA interrupts (1 and 2) will be addressed when that code is
   rototilled.

 - Modify the zs front end to register with the appropriate interrupt
   controller:  through the PSC on the AV Quadras, and direct to
   interrupt 4 on the rest.  Arrange to have the appropriate zsc_softc
   supplied to us at interrupt time.

 - Modify the direct ADB driver (and its PowerManager cousin) to call
   intr_dispatch(), rather than zshard().  XXX This is a kludge, but at
   least limits the brokenness to the ADB drivers, now.

As a side effect, this should fix PR 5590.  Thanks to Bill Studenmund for
correctly determining the cause of the problem reported there.

Better integration of Power Manager IC ADB driver into the direct ADB driver framework,
from Takashi Hamada.  Also includes a handler for unsolicited ADB
packets.

Add Performa 580/588 to the list of machines which have a Cuda chip.
XXX - we should really be using machine ID symbolic constants here, not
numbers.

Rewritten II-series ADB code from John Wittkoski.  Also, a whole
lotta KNF.

Unify ADB options and place them all into opt_adb.h.  Provide a knob to
enable ADB debugging messages if ADB_DEBUG is configured.

Pull up 1.9

Another update from John:  if we're polling, e.g. in ddb, pass the
keystroke to the upper half directly.

Update from John Wittkoski:  the Color Classic and Color Classic II
have Cuda hardware, not IIsi-based.

Pull rev 1.7 and 1.8 up from trunk (scottr)

Update from John Wittkoski:  bug fixes for Cuda support.

remove an obsolete comment.

Update marc-pcmcia branch from trunk.

Make #include directives consistent.  All MD headers are of the form:

	#include <mac68k/{dev,mac68k}/foo.h>

April 18 update from John Wittkoski, w/space vs. tab KNFing by me.

Make sure to call adbop() on Power Manager-based machines.  Noted by
Takashi Hamada, who also provided the code I based this modifcation
on.

Use the new opt_mrg_adb.h header.

Fix several more instances where the volatile modifier was needed.
From Allen.

Direct-to-hardware ADB interface/driver, written by John P. Wittkoski.