Commit Graph

1412 Commits

Author SHA1 Message Date
David Malone
041b706b2f Despite several examples in the kernel, the third argument of
sysctl_handle_int is not sizeof the int type you want to export.
The type must always be an int or an unsigned int.

Remove the instances where a sizeof(variable) is passed to stop
people accidently cut and pasting these examples.

In a few places this was sysctl_handle_int was being used on 64 bit
types, which would truncate the value to be exported.  In these
cases use sysctl_handle_quad to export them and change the format
to Q so that sysctl(1) can still print them.
2007-06-04 18:25:08 +00:00
John Baldwin
90dea4f9a7 When trying to allocate a PnP BIOS memory resource, the code loops trying
to move up the start address until the allocation succeeds.  If the
alignment of the resource was 0, then the code would keep trying the same
request in an infinite loop and hang.  Force the request to always move
start up by at least 1 byte each time through the loop.
2007-04-17 15:14:23 +00:00
Bruce Evans
d78180f8f5 Partial fix for a bug in rev.1.231. If suspend/resume clobbers the
RTC state, then it may clobber the RTC index register, so the index
register must be restored before using it to restore control registers
in rtc_restore().

The following problems remain:
- rtc_restore() is only called if pmtimer is configured.  Buggy
  suspend/resumes are more likely to clobber the index register than
  a control register, so pmtimer is more needed than it used to be.
- pmtimer doesn't exist for amd64.
- Restoring of the RTC state may race with rtcintr().  If an RTC
  interrupt is handled before the state is restored, then rtcin(RTC_INTR)
  in rtcintr() may read from the wrong register, so rtcintr() may spin
  forever.  This may be mitigated by the most common state clobbering
  being to turn off RTC interrupts.
2007-03-05 09:10:17 +00:00
Yoshihiro Takahashi
de038d5ffc style(9). 2007-03-04 04:55:19 +00:00
John Baldwin
84d37a463a Use pause() rather than tsleep() on explicit global dummy variables. 2007-02-27 17:22:30 +00:00
Paolo Pisati
ef544f6312 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@
2007-02-23 12:19:07 +00:00
Bruce Evans
71799af2d5 Cleaned up declaration and initialization of clock_lock. It is only
used by clock code, so don't export it to the world for machdep.c to
initialize.  There is a minor problem initializing it before it is
used, since although clock initialization is split up so that parts
of it can be done early, the first part was never done early enough
to actually work.  Split it up a bit more and do the first part as
late as possible to document the necessary order.  The functions that
implement the split are still bogusly exported.

Cleaned up initialization of the i8254 clock hardware using the new
split.  Actually initialize it early enough, and don't work around it
not being initialized in DELAY() when DELAY() is called early for
initialization of some console drivers.

This unfortunately moves a little more code before the early debugger
breakpoint so that it is harder to debug.  The ordering of console and
related initialization is delicate because we want to do as little as
possible before the breakpoint, but must initialize a console.
2007-01-23 08:01:20 +00:00
Ceri Davies
18929073b9 Be consistent with the spelling of "dependent" in user-visible places.
PR:		kern/27429
Submitted by:	T. William Wells
2006-12-30 11:55:47 +00:00
Bruce Evans
b73057227b Optimized RTC accesses by avoiding null writes to the index register
and by only delaying when an RTC register is written to.  The delay
after writing to the data register is now not just a workaround.

This reduces the number of ISA accesses in the usual case from 4 to
1.  The usual case is 2 rtcin()'s for each RTC interrupt.  The index
register is almost always RTC_INTR for this.  The 3 extra ISA accesses
were 1 for writing the index and 2 for delays.  Some delays are needed
in theory, but in practice they now just slow down slow accesses some
more since almost eveyone including us does them wrong so modern systems
enforce sufficient delays in hardware.  I used to have the delays ifdefed
out, but with the index register optimization the delays are rarely
executed so the old magic ones can be kept or even implemented non-
magically without significant cost.

Optimizing RTC interrupt handling is more interesting than it used to
be because RTC interrupts are currently needed to fix the more efficient
apic timer interrupts on some systems.  apic_timer_hz is normally 2000
so the RTC interrupt rate needs to be 2048 to keep the apic timer
firing on such systems.  Without these changes, each RTC interrupt
normally took 10 ISA accesses (2 PIC accesses and 2 sets of 4 RTC
accesses).  Each ISA access takes 1-1.5uS so 10 of then at 2048 Hz
takes 2-3% of a CPU.  Now 4 of them take 0.8-1.2% of a CPU.
2006-12-03 03:49:28 +00:00
Poul-Henning Kamp
e4c9547050 Use calendaric calculation support from subr_clock.c instead of home-rolled.
Eventually, this RTC should probably use subr_rtc.c as well
2006-10-02 16:18:40 +00:00
Poul-Henning Kamp
b69f71eb29 Second part of a little cleanup in the calendar/timezone/RTC handling.
Split subr_clock.c in two parts (by repo-copy):
   subr_clock.c contains generic RTC and calendaric stuff. etc.
   subr_rtc.c contains the newbus'ified RTC interface.

Centralize the machdep.{adjkerntz,disable_rtc_set,wall_cmos_clock}
sysctls and associated variables into subr_clock.c.  They are
not machine dependent and we have generic code that relies on being
present so they are not even optional.
2006-10-02 15:42:02 +00:00
Poul-Henning Kamp
f645b0b51c First part of a little cleanup in the calendar/timezone/RTC handling.
Move relevant variables to <sys/clock.h> and fix #includes as necessary.

Use libkern's much more time- & spamce-efficient BCD routines.
2006-10-02 12:59:59 +00:00
Warner Losh
ddebcb409b Eliminate one set of XBOX #ifdefs. The Xbox code just needs to set a
different TIMER_FREQ value than default.  Accomplish this via the
config file rather than via an #ifdef.
2006-08-09 23:47:38 +00:00
Warner Losh
360de69338 (apply '(lambda (reformat-region 'style-9-parens)) (read-file isahint.c))
remove redundant parens, per style(9) to reduce that limp, lispy feeling.
2006-07-08 16:50:10 +00:00
Warner Losh
3c7c9eb558 Remove old GENERIC kludge. We no longer need to skip devices named
atkbd.  Version 1.162 of GENERIC fixed this problem in April of 1999.
Subsequent to that, the hints data was removed from GENERIC and move
to hints files.  All the hints file ever created have atkbd at the
right location.  This should have been removed just after RELENG_4 was
branched (and likely around 4.5 in RELENG_4).

MFC After: 3 days
2006-07-08 15:51:55 +00:00
Marius Strobl
acb8c14985 Make the ISAPNP code optional and only enable it on i386 and pc98 (used
for CBUS-PNP cards there) by default, as there are no amd64 and sparc64
machines with ISA slots and which therefore could make use of this code
known to exist. For sparc64 this additionally allows to get rid of the
compat shims for in{b,w,l}()/out{b,w,l}() etc and the associated hacks.

OK'ed by:	imp, peter
2006-06-12 21:07:13 +00:00
John Baldwin
73dbd3da73 Remove various bits of conditional Alpha code and fixup a few comments. 2006-05-12 05:04:46 +00:00
Rink Springer
5fa7c51ff6 Committed the xbox syscons(8)-able console driver.
Reviewed by:    arch@ (no comments)
Approved by:    imp (mentor)
2006-03-03 14:52:57 +00:00
John Baldwin
b439e431bf Tweak how the MD code calls the fooclock() methods some. Instead of
passing a pointer to an opaque clockframe structure and requiring the
MD code to supply CLKF_FOO() macros to extract needed values out of the
opaque structure, just pass the needed values directly.  In practice this
means passing the pair (usermode, pc) to hardclock() and profclock() and
passing the boolean (usermode) to hardclock_cpu() and hardclock_process().
Other details:
- Axe clockframe and CLKF_FOO() macros on all architectures.  Basically,
  all the archs were taking a trapframe and converting it into a clockframe
  one way or another.  Now they can just extract the PC and usermode values
  directly out of the trapframe and pass it to fooclock().
- Renamed hardclock_process() to hardclock_cpu() as the latter is more
  accurate.
- On Alpha, we now run profclock() at hz (profhz == hz) rather than at
  the slower stathz.
- On Alpha, for the TurboLaser machines that don't have an 8254
  timecounter, call hardclock() directly.  This removes an extra
  conditional check from every clock interrupt on Alpha on the BSP.
  There is probably room for even further pruning here by changing Alpha
  to use the simplified timecounter we use on x86 with the lapic timer
  since we don't get interrupts from the 8254 on Alpha anyway.
- On x86, clkintr() shouldn't ever be called now unless using_lapic_timer
  is false, so add a KASSERT() to that affect and remove a condition
  to slightly optimize the non-lapic case.
- Change prototypeof  arm_handler_execute() so that it's first arg is a
  trapframe pointer rather than a void pointer for clarity.
- Use KCOUNT macro in profclock() to lookup the kernel profiling bucket.

Tested on:	alpha, amd64, arm, i386, ia64, sparc64
Reviewed by:	bde (mostly)
2005-12-22 22:16:09 +00:00
Peter Wemm
737429bc96 MFamd64 rev 1.223: Use the TSC to implement DELAY() if not marked broken
and it has been calibrated.
2005-12-13 19:08:55 +00:00
Ruslan Ermilov
f4e9888107 Fix -Wundef. 2005-12-04 02:12:43 +00:00
Warner Losh
51ef421d92 Add support for XBOX to the FreeBSD port. The xbox architecture is
nearly identical to wintel/ia32, with a couple of tweaks.  Since it is
so similar to ia32, it is optionally added to a i386 kernel.  This
port is preliminary, but seems to work well.  Further improvements
will improve the interaction with syscons(4), port Linux nforce driver
and future versions of the xbox.

This supports the 64MB and 128MB boxes.  You'll need the most recent
CVS version of Cromwell (the Linux BIOS for the XBOX) to boot.

Rink will be maintaining this port, and is interested in feedback.
He's setup a website http://xbox-bsd.nl to report the latest
developments.

Any silly mistakes are my fault.

Submitted by: Rink P.W. Springer rink at stack dot nl and
	Ed Schouten ed at fxq dot nl
2005-11-09 03:55:40 +00:00
Marius Strobl
c7974ff135 Fix an endianness issue in pnp_eisaformat(). This corrects printing PnP IDs
on big-endian archs like sparc64, e.g.:
uart0: <16550 or compatible> at port 0x3f8-0x3ff irq 43 pnpid @HEd041 on isa0
is now correctly printed as:
uart0: <16550 or compatible> at port 0x3f8-0x3ff irq 43 pnpid PNP0501 on isa0

There are probably other endianness issues lurking in the PnP code which
however aren't exhibited on sparc64 as the PnP devices there are sort of
PnP BIOS devices rather than ISA PnP devices.

Tested on:	i386, sparc64
MFC after:	1 week
2005-09-28 15:01:58 +00:00
Warner Losh
a81804d94f Add pnp and location info for the ISA bus. The pnp info is the
primary vendor id for this device.  The location is empty because ISA
doesn't give one a way to generally locate a card.  PNP BIOS entries
do provide a way to locate cards, as do isa pnp cards.  These
locations will be added as soon as the code to remember them is
written.
2005-08-01 07:03:10 +00:00
John Baldwin
db015a9153 Fixup some more fallout from the lapic/i8254 changes:
- Make sure timer0_max_count is set to a correct value in the lapic case.
- Revert i8254_restore() to explicitly reprogram timer 0 rather than
  calling set_timer_freq() to do it.  set_timer_freq() only reprograms
  the counter if the max count changes which it never does on resume.  This
  unbreaks suspend/resume for several people.

Tested by:	marks, others
Reviewed by:	bde
MFC after:	3 days
2005-07-13 15:43:21 +00:00
John Baldwin
623b1a868e Remove a || 1 that crept into the i8254 commit and was subsequently
copied and pasted.  I had actually tested without this change in my
trees as had the other testers.

Reported by:	bde, Rostislav Krasny rosti dot bsd at gmail dot com
Approved by:	re (scottl)
Pointy hat to:	jhb
2005-07-05 20:13:12 +00:00
John Baldwin
7df0015945 Use a simpler implementation for the i8254 timecounter when using the lapic
timer since irq0 isn't being driven at hz in that case and we don't need to
try to handle edge cases with rollover, etc. that require irq0 to be firing
for the timecounter to actually work.

Submitted by:	phk
Tested by:	schweikh
Approved by:	re (scottl)
2005-07-01 15:47:27 +00:00
Marius Strobl
520b635320 - Hook up the new locations of the atkbdc(4), atkbd(4) and psm(4) source
files after they were repo-copied to sys/dev/atkbdc. The sources of
  atkbdc(4) and its children were moved to the new location in preparation
  for adding an EBus front-end to atkbdc(4) for use on sparc64; i.e. in
  order to not further scatter them over the whole tree which would have
  been the result of adding atkbdc_ebus.c in e.g. sys/sparc64/ebus. Another
  reason for the repo-copies was that some of the sources were misfiled,
  e.g. sys/isa/atkbd_isa.c wasn't ISA-specific at all but for hanging
  atkbd(4) off of atkbdc(4) and was renamed to atkbd_atkbdc.c accordingly.
  Most of sys/isa/psm.c, i.e. expect for its PSMC PNP part, also isn't
  ISA-specific.
- Separate the parts of atkbdc_isa.c which aren't actually ISA-specific
  but are shareable between different atkbdc(4) bus front-ends into
  atkbdc_subr.c (repo-copied from atkbdc_isa.c). While here use
  bus_generic_rl_alloc_resource() and bus_generic_rl_release_resource()
  respectively in atkbdc_isa.c instead of rolling own versions.
- Add sparc64 MD bits to atkbdc(4) and atkbd(4) and an EBus front-end for
  atkbdc(4). PS/2 controllers and input devices are used on a couple of
  Sun OEM boards and occur on either the EBus or the ISA bus. Depending on
  the board it's either the only on-board mean to connect a keyboard and
  mouse or an alternative to either RS232 or USB devices.
- Wrap the PSMC PNP part of psm.c in #ifdef DEV_ISA so it can be compiled
  without isa(4) (e.g. for EBus-only machines). This ISA-specific part
  isn't separated into its own source file, yet, as it requires more work
  than was feasible for 6.0 in order to do it in a clean way. Actually
  philip@ is working on a rewrite of psm(4) so a more comprehensive
  clean-up and separation of hardware dependent and independent parts is
  expected to happen after 6.0.

Tested on:	i386, sparc64 (AX1105, AXe and AXi boards)
Reviewed by:	philip
2005-06-10 20:56:38 +00:00
Yoshihiro Takahashi
d4fcf3cba5 Remove bus_{mem,p}io.h and related code for a micro-optimization on i386
and amd64.  The optimization is a trivial on recent machines.

Reviewed by:	-arch (imp, marcel, dfr)
2005-05-29 04:42:30 +00:00
Yoshihiro Takahashi
b22bf66063 - Move bus dependent defines to {isa,cbus}_dmareg.h.
- Use isa/isareg.h rather than <arch>/isa/isa.h.

Tested on: i386, pc98
2005-05-14 10:14:56 +00:00
Yoshihiro Takahashi
24072ca35b - Move timerreg.h to <arch>/include and split i8253 specific defines into
i8253reg.h, and add some defines to control a speaker.
- Move PPI related defines from i386/isa/spkr.c into ppireg.h and use them.
- Move IO_{PPI,TIMER} defines into ppireg.h and timerreg.h respectively.
- Use isa/isareg.h rather than <arch>/isa/isa.h.

Tested on: i386, pc98
2005-05-14 09:10:02 +00:00
Yoshihiro Takahashi
d6c331a30d Remove unused IO_NPX* defines. 2005-05-12 12:36:31 +00:00
Matthew N. Dodd
2ca94fca7e Add ISACFGATTR_HINTS flag to allow detection of a device that was created
as a result of the hints mechanism.
2005-04-13 03:26:24 +00:00
Matthew N. Dodd
93fa9a8d72 Replace spl protection in rtcin() and writertc() with spinlocks
using the existing clock_lock mutex.
2005-04-12 20:49:31 +00:00
John Baldwin
d336ab43c6 - Don't enable periodic interrupts from the RTC by default in rtc_statusb.
Instead, explicitly enable them when we setup the interrupt handler.
  Also, move the setting of stathz and profhz down to the same place so
  that the code flow is simpler and easier to follow.
- Don't setup an interrupt handler for IRQ0 if we are using the lapic timer
  as it doesn't do anything productive in that case.
2005-03-24 21:34:16 +00:00
Warner Losh
36fed96550 Use STAILQ in preference to SLIST for the resources. Insert new resources
last in the list rather than first.

This makes the resouces print in the 4.x order rather than the 5.x order
(eg fdc0 at 0x3f0-0x3f5,0x3f7 is 4.x, but 0x3f7,0x3f0-0x3f5 is 5.x).  This
also means that the pci code will once again print the resources in BAR
ascending order.
2005-03-18 05:19:50 +00:00
Peter Wemm
0cd202bb09 Whitespace sync with amd64. (Rather than re-add the extra blank lines
on amd64, I'm removing them here)
2005-03-11 22:10:25 +00:00
John Baldwin
dd1d2889f2 - Remove the BURN_BRIDGES marked support for hooking into the ISA timer 0
interrupt.
- Remove the timer_func variable as it now has a static value of
  hardclock() and is only used in one place.

Axe borrowed from:	phk
2005-03-09 15:33:58 +00:00
Ian Dowse
528433ba71 Save and restore the VGA state across a suspend-resume cycle. This
is particularly useful when VESA is available (either `options VESA'
or load the vesa module), as BIOSes in some notebooks may correctly
save and restore LCD panel settings using VESA in cases where calling
the video BIOS POST is not effective. On some systems it may also
be necessary to set the hw.acpi.reset_video sysctl to 0.
2005-02-28 21:06:14 +00:00
Poul-Henning Kamp
e70377df79 Use dynamic major number allocation. 2005-02-27 22:16:30 +00:00
John Baldwin
e8ce55117b Use the local APIC timer to drive the various kernel clocks on SMP machines
rather than forwarding interrupts from the clock devices around using IPIs:
- Add an IDT vector that pushes a clock frame and calls
  lapic_handle_timer().
- Add functions to program the local APIC timer including setting the
  divisor, and setting up the timer to either down a periodic countdown
  or one-shot countdown.
- Add a lapic_setup_clock() function that the BSP calls from
  cpu_init_clocks() to setup the local APIC timer if it is going to be
  used.  The setup uses a one-shot countdown to calibrate the timer.  We
  then program the timer on each CPU to fire at a frequency of hz * 3.
  stathz is defined as freq / 23 (hz * 3 / 23), and profhz is defined as
  freq / 2 (hz * 3 / 2).  This gives the clocks relatively prime divisors
  while keeping a low LCM for the frequency of the clock interrupts.
  Thanks to Peter Jeremy for suggesting this approach.
- Remove the hardclock and statclock forwarding code including the two
  associated IPIs.  The bitmap IPI handler has now effectively degenerated
  to just IPI_AST.
- When the local APIC timer is used we don't turn the RTC on at all, but
  we still enable interrupts on the ISA timer 0 (i8254) for timecounting
  purposes.
2005-02-08 20:25:07 +00:00
Poul-Henning Kamp
0c3c54da63 Since we are quite unlikely to ever face another platform which
uses the i8237 without trying to emulate the PC architecture move
the register definitions for the i8237 chip into the central include
file for the chip, except for the PC98 case which is magic.

Add new isa_dmatc() function which tells us as cheaply as possible
if the terminal count has been reached for a given channel.
2005-02-06 13:46:39 +00:00
John Baldwin
aa96fcdb61 Anytime we write to the RTC's status B register to possibly enable
interrupts, read from the interrupt status register to clear any pending
interrupts.  Otherwise in some rare cases the RTC would never fire any
interrupts as it constantly thinks it has an interrupt pending.

PR:		i386/17800
PR:		kern/76776
Submitted by:	Jose M. Alcaide jose at we dot lc dot ehu dot es
MFC after:	2 weeks
2005-02-03 19:06:03 +00:00
Warner Losh
784d07b40d Protect against wrapping. This appaers to fix some hangs that people
have seen in the isa pnp case where a resource buts up against
0xffffffff.  This would only impact when the board was booted without
ACPI.

Submitted by: Ed Maste (freebsd-stable <20050103145720.GA90754@sandvine.com>)
MFC After: 5 days
2005-01-23 03:03:58 +00:00
Philip Paeps
df616c9022 Make life for owners of Synaptics Touchpads more pleasant :-)
o Implement a shiny new algorithm to keep track of finger movement at
   slow speeds.  This dramatically reduces the level of questionable
   language from users trying to resize windows.

 o Properly catch the many extra buttons and dials which manufacturers
   are known to screw onto Synaptics touchpad controllers.  Currently,
   up to seven buttons are known to work, more should work too.

 o Add a number of sysctls allowing one to tune the driver to taste in
   a simple way:

     # Should the extra buttons act as axes or as middle button
     hw.psm.synaptics.directional_scrolls

     # These control the 'stickiness' at low speeds
     hw.psm.synaptics.low_speed_threshold
     hw.psm.synaptics.min_movement
     hw.psm.synaptics.squelch_level

PR:		kern/75725
Submitted by:	Jason Kuri <jay@oneway.com>
MFC after:	1 month
2005-01-10 13:05:58 +00:00
Warner Losh
86cb007f9f /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
Philip Paeps
9fd851bb17 Reduce diffs to work in progress before checking in serious changes.
o Move the sysctls under debug.psm.* and hw.psm.* making them a bit
   clearer and more consistent with other drivers.

 o Remove the debug.psm_soft_timeout sysctl.  It was introduced many
   moons ago in r1.64 but never referenced anywhere.

 o Introduce hw.psm.tap_threshold and hw.psm.tap_timeout to control
   the behaviour of taps on touchpads.  People might like to fiddle
   with these if tapping seems to slow or too fast for them.

 o Add debug.psm.loglevel as a tunable so that verbosity can be set
   easily at boot-time (to watch probes and such) without having to
   compile a kernel with options PSM_DEBUG=N.
2005-01-03 13:19:49 +00:00
Warner Losh
9b01161ec3 Formatting nits 2004-12-27 18:18:38 +00:00
Warner Losh
812fb8f294 Get rid of #ifdef for legacy system. Move that into the MD code.
Export minimal symbols to allow this to happen.
2004-12-24 23:03:17 +00:00
Warner Losh
09aafea1c6 A few style(9) changes before more extensive changes:
o u_intXX_t -> uintXX_t
o use 8 character tabs
o proper wrapping
o return (value);
2004-12-24 22:31:47 +00:00
Warner Losh
934bd5ede9 Make the other pnp messages more explicit as well... 2004-12-24 22:18:19 +00:00
Warner Losh
2e63992f34 Note when we're done probing PNP. There's been several reports over the
years of hangs that turned out to be in the PNP code.  Add an explicit end
marker so such hangs are more apparent.
2004-12-24 22:16:06 +00:00
Warner Losh
7a83aa6339 Various style(9) items before of some more extensive work:
o return (value);
o u_intXX_t -> uintXX_t
o break lines
o consistantly use 8 space tab stops
o minor grammar nits in a few printfs
2004-12-24 22:08:57 +00:00
Warner Losh
b4e9316e7b GC #if 0'd code. It can go away now... 2004-12-24 21:53:21 +00:00
Warner Losh
993fd0c509 PNP BIOS devices are fundamentally different than ISA PNP devices.
These devices should be probed first because they are at fixed
locations and cannot be turned off.  ISA PNP devices, on the other
hand, can be turned off and often can be flexible in the resources
they use.  Probe them last, as always.
2004-12-07 05:30:02 +00:00
Poul-Henning Kamp
61eb992fc2 Stop printing the VGA registers during verbose boot, in order to not
needlessly overflow the msgbuffer.  Can be reenabled if somebody ever
takes an interest in syscons again.
2004-11-03 09:07:44 +00:00
Nate Lawson
e5979322ba Remove local hacks to set flags now that the device probe does this for us.
Tested on every device except sio_pci and the pc98 fd.c.  Perhaps something
similar should be done for the "disabled" hints also.

MFC after:	2 weeks
2004-10-14 22:21:59 +00:00
Philip Paeps
34ed91b45b Introduce a tunable to disable support for Synaptics touchpads. A number of
people have reported problems (stickyness, aiming difficulty) which is proving
difficult to fix, so this will default to disable until sometime after 5.3R.

To enable Synaptics support, set the 'hw.psm.synaptics_support=1' tunable.

MT5 candidate.

Approved by:	njl
2004-09-29 23:49:57 +00:00
Peter Wemm
2169193596 Converge towards i386. I originally resisted creating <machine/pc/bios.h>
because it was mostly irrelevant - except for the silly BIOS_PADDRTOVADDR
etc macros.  Along the way of working around this, I missed a few things.

* Make syscons properly inherit the bios capslock/shiftlock/etc state like
  i386 does.  Note that we cannot inherit the bios key repeat rate because
  that requires a bios call (which is impossible for us).
* Give syscons the ability to beep on amd64.  Oops.

While here, make bios.c compile and add it to files.amd64.
2004-09-24 01:08:34 +00:00
Poul-Henning Kamp
7ce1979be6 Add new a function isa_dma_init() which returns an errno when it fails
and which takes a M_WAITOK/M_NOWAIT flag argument.

Add compatibility isa_dmainit() macro which whines loudly if
isa_dma_init() fails.

Problem uncovered by:	tegge
2004-09-15 12:09:50 +00:00
Justin T. Gibbs
5fb0f52712 Improve sync recovery algorithm:
o Remove PSM_SYNCERR_THRESHOLD1.  This value specified how many sync
   errors were required before the mouse is re-initialised.
   Re-initialisation is now done after (packetsize * 2) sync errors as
   things aren't likely to improve after that.

 o Reset lastinputerror when re-initialisation occurs.  We don't want
   to continue to drop data after re-initialisation.

 o Count the number of failed packets independently of the syncerrors
   statistic.  syncerrors is useful for recovering sync within a single
   packet.  pkterrors allows us to detect when the mouse changes its
   packet mode due to some external event (e.g. KVM switch).

 o Reinitialize the mouse if we see more than psmpkterrthresh errors
   during the validation period.  The validation period begins as soon
   as a sync error is detected and continues until psmerrsecs/msecs
   time has elapsed.  The defaults for these two values force a reset
   if we see two packet errors in a 2 second period.  This allows rapid
   detection of packet framing errors caused by the mouse changing packet
   modes.

 o Export psmpkterrthresh as a sysctl

 o Export psmloglevel as a sysctl.

 o Enable more debugging code to be enabled at runtime via psmloglevel.

 o Simplify verbose conditioned loging by using a VLOG macro.

 o Add several comments describing the sync recovery algorithm of
   this driver.

Large Portions by: Brian Somers <brian@Awfulhak.org>
Inspired and Frustrated by: Belkin KVMs
Reviewed by: njl, philip
2004-08-27 21:25:16 +00:00
Justin T. Gibbs
e55a65d092 Defer the capture of the "expected sync bits" until the first "normal"
data packet is received from the mouse.  In the case of many KVM's,
this avoids a bug in their mouse emulation that sends back incorrect
sync when you explicitly request a data packet from the mouse.  Without
this change, you must force the driver into stock PS/2 mode or be flooded
with a never ending stream of "out of sync" messages on these KVMs.

Approved by: re
2004-08-17 18:12:37 +00:00
Philip Paeps
5459a0063b Don't initialize static variables to 0 (C should just take care of that).
Spotted by:	njl
2004-08-16 20:19:09 +00:00
Philip Paeps
8547e74f4f Update support for Synaptics Touchpads (Volume V)
o Add (long awaited) support for guest devices

Submitted by:	Arne Schwabe <arne@rfc2549.org>
Approved by:	njl (in a former revision)
2004-08-16 16:28:27 +00:00
Philip Paeps
c4dbfe3893 Assume a finger of regular width when no width value is reported by
the touchpad (which happens when it has no extended capabilities).

Spotted by:	dhw
Forgotten by:	philip
2004-08-08 01:26:00 +00:00
Philip Paeps
1b5dd3aee5 Update support for Synaptics Touchpads (Volume IV)
o Change the motion calculation to result in
   a more reasonable speed of motion

This should fix the 'aiming' problems people have reported.  It also
mitigates (but doesn't completely solve) the 'stalling' problems at
very low speeds.

Tested by:	many subscribers to -current
Approved by:	njl
2004-08-08 01:10:23 +00:00
Philip Paeps
bc1418f61c Update support for Synaptics Touchpads (Volume III)
o Catch 'taps' as button presses

 o One finger sends button1, two fingers send button3,
   three fingers send button2 (double-click)

Tested by:	many subscribers to -current
Approved by:	njl
2004-08-08 01:00:31 +00:00
Philip Paeps
7589cb5cae Update support for Synaptics Touchpads (Volume II)
o Handle the 'up/down' buttons some touchpads have as
   a z-axis (scrollwheel) as recommended by the specs

 o Report the buttons as button4 and button5 instead
   of button2 and button4, button2 can be emulated by
   pressing button1 and button3 simultaneously.  This
   allows one to use the two extra buttons for other
   purposes if one so desires.

Tested by:	many subscribers to -current
Approved by:	njl
2004-08-08 00:57:07 +00:00
Philip Paeps
4079d722ac Update support for Synaptics Touchpads (Volume I)
o Clean up whitespace and comments in the
   enable_synaptics() probing function

 o Only use (and rely on) the extended capability
   bits when we are told they actually exist

 o Partly ignore the (possibly dated?) part of the
   specification about the mode byte so that we
   can support 'guest devices' too.

Tested by:	many subscribers to -current
Approved by:	njl
2004-08-08 00:52:11 +00:00
Nate Lawson
a4cdf60c7d Add support for the Synaptics Touchpad mouse driver. I reworked the
submitted version with style cleanups and changes to comments.  I also
modified the ioctl interface.  This version only has one ioctl (to get
the Synaptics-specific config parameters) since this is the only
information a user might want.

Submitted by:	Arne Schwabe <arne -at- rfc2549.org>
2004-07-30 00:59:40 +00:00
Maxime Henrion
d49311a74f Ignore more strange return values of the test_aux_port() function,
because some notebooks (apparently Compaq, Toshiba and Acer ones)
erroneously return 2 or 3 there.

PR:		kern/61482, kern/54188
Submitted by:	Ulf Lilleengen <lulf@kerneled.org>,
		Victor Balada Diaz <victor@alf.dyndns.ws>
MFC after:	3 days
2004-07-16 22:04:29 +00:00
Marcel Moolenaar
45cfc0a914 Partially revert previous commit. Calling getit() unconditionally fixed
a problem that could also be fixed differently without reverting previous
attempts to fix DELAY while the debugger is active (rev 1.204). The bug
was that the i8254 implements a countdown timer, while for (k)db_active
a countup timer was implemented. This resulted in premature termination
and consequently the breakage of DELAY. The fix (relative to rev 1.211)
is to implement a countdown timer for the kdb_active case. As such the
ability to step clock initialization is preserved and DELAY does what is
expected of it.

Blushed: bde :-)
Submitted by: bde
2004-07-11 17:50:59 +00:00
Marcel Moolenaar
7f46949fdf Call getit() unconditionally and only grab clock_lock when the
debugger is not active. The fixes breakages of DELAY() when
running in the debugger, because not calling getit() when the
debugger is active yields a DELAY that doesn't.
2004-07-10 22:16:18 +00:00
Warner Losh
969947cbe7 These option roms are defined in the ISA standard, and in the ISA
hole, so call them ISA Options rom(s).
2004-07-05 17:26:04 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
John Baldwin
092a5c4530 Remove atdevbase and replace it's remaining uses with direct references to
KERNBASE instead.
2004-06-10 20:31:00 +00:00
Poul-Henning Kamp
5dba30f15a add missing #include <sys/module.h> 2004-05-30 20:27:19 +00:00
Poul-Henning Kamp
41ee9f1c69 Add some missing <sys/module.h> includes which are masked by the
one on death-row in <sys/kernel.h>
2004-05-30 17:57:46 +00:00
Warner Losh
6cd91141eb Move fdc from isa/fd.c to dev/fdc/fdc.c. The old files were
repocopied.  Soon there will be additional bus attachments and
specialization for isa, acpi and pccard (and maybe pc98's cbus).

This was approved by nate, joerg and myself.  bde dissented on the new
location, but appeared to be OK after some discussion.
2004-05-17 05:46:16 +00:00
John Baldwin
d4d4ece72d Trim unused includes. 2004-05-11 20:14:53 +00:00
John Baldwin
f9acc6410e - The i8254 uses IRQ 0, not IRQ 8. Correct i8254_intsrc to reference the
correct interrupt source.
- Cache a pointer to the i8254_intsrc's pending method to avoid several
  pointer indirections in i8254_get_timecount().

Reported by:	bde
2004-04-27 20:03:26 +00:00
Bruce Evans
a3a10d1c3c Fixed breakage of the formatting operation in rev.1.266. The wrong
clause of an if-else statement was removed.

Reviewed by:	no response from maintainer in 12 days
2004-04-25 04:33:56 +00:00
Maxime Henrion
0335702b9f Don't check for device_get_softc() returning NULL, it can't happen. 2004-04-17 10:25:04 +00:00
Warner Losh
f36cfd49ad Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.

Approved by: core, peter, alc, rwatson
2004-04-07 20:46:16 +00:00
Mark Murray
44e421c906 Put a bunch of output that us really only useful in a debug
scenario into #ifdef DEBUG. This makes my cluster with Belkin
KVM switch completely usable, even if the KVM switch and mouse
get a bit confused sometimes.

Without this, when the mouse gets confused, all sorts of crud
gets spammed all over the screen. With this, the mouse may appear
dead for a second or three, but it recovers silently.
2004-04-04 16:36:21 +00:00
Nate Lawson
5f96beb9e0 Convert callers to the new bus_alloc_resource_any(9) API.
Submitted by:	Mark Santcroos <marks@ripe.net>
Reviewed by:	imp, dfr, bde
2004-03-17 17:50:55 +00:00
Poul-Henning Kamp
db42ff97da Remove unused FDNUMTOUNIT() macro 2004-02-29 10:21:40 +00:00
Poul-Henning Kamp
503799ea5c Make mode setting with fdcontrol(8) stick.
Recognize when configured for "auto".
2004-02-25 13:44:58 +00:00
Poul-Henning Kamp
dc08ffec87 Device megapatch 4/6:
Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
Poul-Henning Kamp
c9c7976f7f Device megapatch 1/6:
Free approx 86 major numbers with a mostly automatically generated patch.

A number of strategic drivers have been left behind by caution, and a few
because they still (ab)use their major number.
2004-02-21 19:42:58 +00:00
Nate Lawson
64746d0689 Workaround some ACPI BIOSen which break the IO port into multiple
resources.  (Note that the correct range is 0x3f7,0x3f0-0x3f5.)  Such
devices will be detected as follows:

  fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port
  0x3f7,0x3f4-0x3f5,0x3f2-0x3f3,0x3f0-0x3f1 irq 6 drq 2 on acpi0

To do this, we find the minimum and maximum start addresses for the
resources and use them as the base for the IO and control ports.

Help from:	jhb
2004-02-15 20:30:22 +00:00
Alfred Perlstein
de75fd6d2b Significantly reduce the "jitter" that is typical for PS/2 mice
when using a KVM.

There is no actual solution possible, but this gets us pretty close.

Typically when switching back to a FreeBSD box and moving the mouse
wild data is produced, because the protocol's validation/checksum
system is extremely weak it is impossible to determine that we're
out of sync before dropping several bogus packets to user land.

The actual solution that appears to offer the best clamping of
jitter is to buffer the mouse packets if we've not seen mouse
activity for more than .5 seconds.  Then waiting to flush that data
for 1/20th of a second.  If within that 20th of a second we get any
packets that do fail the weak test we drop the entire queue and
back off accepting data from the mouse for 2 seconds and then repeat
the whole deal.

You can still get _some_ jitter, notably if you switch to the FreeBSD
box, then move the mouse just enough to generate one or two packets.
Those packets may be bogus, but may still pass the validity check.

One way to finally kill the problem once and for all is to check
the initial packets for "wild" values.  Typically one sees packets
in the +/-60 range during normal operation, however when bogus data
is generated it's typically near the outer range of +/-120 or more,
those packets would be a good candidate for dropping or clamping.

I've been running with this for several weeks now and it has
significantly helped me stay sane even with a piece of junk Belkin
KVM causing wild jitter each and every time I switch.

Lastly I'd like to note that my experience with Windows shows me that
somehow the Microsoft PS/2 driver typically avoids this problem, but
that may only be possible when running the mouse in a dumb-ed down PS/2
mode that Belkin recommends on their site.
2003-12-11 11:28:11 +00:00
Poul-Henning Kamp
daf9092bcd Don't disable the TSC with statclock_disable. 2003-11-13 10:02:12 +00:00
Seigo Tanimura
512824f8f7 - Implement selwakeuppri() which allows raising the priority of a
thread being waken up.  The thread waken up can run at a priority as
  high as after tsleep().

- Replace selwakeup()s with selwakeuppri()s and pass appropriate
  priorities.

- Add cv_broadcastpri() which raises the priority of the broadcast
  threads.  Used by selwakeuppri() if collision occurs.

Not objected in:	-arch, -current
2003-11-09 09:17:26 +00:00
John Baldwin
6f92bdd0c1 New APIC support code:
- The apic interrupt entry points have been rewritten so that each entry
  point can serve 32 different vectors.  When the entry is executed, it
  uses one of the 32-bit ISR registers to determine which vector in its
  assigned range was triggered.  Thus, the apic code can support 159
  different interrupt vectors with only 5 entry points.
- We now always to disable the local APIC to work around an errata in
  certain PPros and then re-enable it again if we decide to use the APICs
  to route interrupts.
- We no longer map IO APICs or local APICs using special page table
  entries.  Instead, we just use pmap_mapdev().  We also no longer
  export the virtual address of the local APIC as a global symbol to
  the rest of the system, but only in local_apic.c.  To aid this, the
  APIC ID of each CPU is exported as a per-CPU variable.
- Interrupt sources are provided for each intpin on each IO APIC.
  Currently, each source is given a unique interrupt vector meaning that
  PCI interrupts are not shared on most machines with an I/O APIC.
  That mapping for interrupt sources to interrupt vectors is up to the
  APIC enumerator driver however.
- We no longer probe to see if we need to use mixed mode to route IRQ 0,
  instead we always use mixed mode to route IRQ 0 for now.  This can be
  disabled via the 'NO_MIXED_MODE' kernel option.
- The npx(4) driver now always probes to see if a built-in FPU is present
  since this test can now be performed with the new APIC code.  However,
  an SMP kernel will panic if there is more than one CPU and a built-in
  FPU is not found.
- PCI interrupts are now properly routed when using APICs to route
  interrupts, so remove the hack to psuedo-route interrupts when the
  intpin register was read.
- The apic.h header was moved to apicreg.h and a new apicvar.h header
  that declares the APIs used by the new APIC code was added.
2003-11-03 21:53:38 +00:00
Nate Lawson
e8c321c92f Fix a panic that occurs when resuming. For some reason, sc->cur_scp is
NULL.

Submitted by:	Andrew Thompson <andy@fud.org.nz>
2003-10-29 20:48:13 +00:00
Peter Wemm
042093540c Look at the equipment list for amd64 as well as i386 for autodetecting
floppy drives in the absence of hints.
2003-10-23 05:52:52 +00:00
Poul-Henning Kamp
b52b7f465d Eliminate use bio_blkno. 2003-10-18 17:51:26 +00:00
Poul-Henning Kamp
4866f95d76 Change fb_attach() and fb_detach() to take a integer unit number rather
than a dev_t.

All of the dev_t's passed were bogusly created with makedev()
2003-09-26 10:41:44 +00:00
Warner Losh
00dc18b5a8 Per TRB vote: restore the aquire_timer0 and associated goo. This will
be gone in FreeBSD 6, so put BURN_BRIDGES around it.  The TRB also
felt that if something better comes along sooner, it can be used to
replace this code.

Delayed by: BSDcon and subsequent disk crash.
2003-09-24 15:33:33 +00:00