Commit Graph

65 Commits

Author SHA1 Message Date
Julian Elischer
3745c395ec Rename the kthread_xxx (e.g. kthread_create()) calls
to kproc_xxx as they actually make whole processes.
Thos makes way for us to add REAL kthread_create() and friends
that actually make theads. it turns out that most of these
calls actually end up being moved back to the thread version
when it's added. but we need to make this cosmetic change first.

I'd LOVE to do this rename in 7.0  so that we can eventually MFC the
new kthread_xxx() calls.
2007-10-20 23:23:23 +00:00
Nate Lawson
4d44d81742 Check the _TMP value for sanity also. On some systems (HP NX laptops), the
EC occasionally times out and provides bogus values (3000C).  This change
prevents those systems from prematurely shutting down while we work on the
underlying problem.  Also, bump the sanity value to 0...200C from 0...150C.
2007-03-05 21:39:53 +00:00
Hajimu UMEMOTO
d45564dcfe Support Celsius (nn.nC), Fahrenheit (nn.nF) and Kelvin (nnnn) to
specify temperature.

Reviewed by:	njl
MFC after:	3 days
2006-09-03 15:10:04 +00:00
Nate Lawson
cf90f178b9 Add support for overriding the values for _CRT, _HOT, and _PSV via sysctl.
Prevent casual modification by requiring hw.acpi.thermal.user_override to
be set first.  Fix printing of negative temperatures in the K->C conversion.
Document the remaining thermal sysctls.

MFC after:	3 days
2006-07-25 02:27:38 +00:00
Nate Lawson
197b4dcc64 Minor sysctl cleanup. The RW flag means read|write and so it is redundant
to add the RD flag.  Also, the debug node does not need to be writable.
2006-06-10 08:04:38 +00:00
David E. O'Brien
2a191126de Canonize the include of acpi.h. 2005-09-11 18:39:03 +00:00
Alexander Kabaev
83582626ad Unbreak compiles with ACPI_DEBUG. 2005-08-26 02:21:02 +00:00
Hajimu UMEMOTO
b3130703e6 get current temperature from _TMP during passive cooling is active.
it makes CPU freq transition smooth.
2005-08-25 11:31:30 +00:00
Hajimu UMEMOTO
9b96aa9ad7 initialize only ACPI_BUFFER to avoid race condition with passive
cooling thread which refers psv, tc1, tc2 and tsp.  The previous
code made the period where sc->tz_zone.tsp was zero, and it caused
panic at msleep().

Reported by:	keramida
Tested by:	keramida
2005-08-25 10:50:36 +00:00
Hajimu UMEMOTO
c219fd0c5e don't raise cpu speed over the value when passive cooling is in
effect.  since CPU speed is restored by degrees, we cannot use
the facility of saving cpu speed by CPUFREQ_set() effectively.
so, we need to save the value when passive cooling is in effect.

Repoeted by:	Kevin Oberman <oberman__at__es.net>
2005-08-17 17:01:25 +00:00
Hajimu UMEMOTO
fa4679950b don't do mutex locking around kthread_create() call.
Reported by:	Maxim Maximov <mcsi__at__mcsi.pp.ru>
2005-08-04 18:34:26 +00:00
Hajimu UMEMOTO
e71de913d8 Implement passive cooling. It is enabled for tz0 by default where
it is available.

Reviewed by:	njl
2005-07-18 20:12:23 +00:00
Nate Lawson
a1adf35e65 Set the start of the cooling time later on, when we're actually performing
the switch.  Other interim tests (i.e., for minimum runtime) could
invalidate the start time.  This fixes transitions to cooler states in that
now they go to the next active state (_AC0 -> _AC1) instead of going
straight to off (_AC0 -> off).

Submitted by:	Alexandre "Sunny" Kovalenko (Alex.Kovalenko / verizon.net)
2005-02-22 00:40:13 +00:00
Nate Lawson
95c973ff52 Initialize the flags value properly. We used to do this in acpi_tz_all_off()
but that function has been removed.  This avoids a potential unnecessary
fan switch on boot.  Also remove some commented out code.

MFC after:	3 days
2004-09-21 18:39:10 +00:00
Nate Lawson
f6cb6ecd55 Clean up rev 1.49 by using the temperature conversion for _PSV also and
wrap a long line.
2004-09-08 19:36:07 +00:00
Nate Lawson
f387ed7e06 Don't change the state of the system in acpi_tz_establish(). Before, we
would turn off all fans when initializing a zone.  However, the HP Omnibook
500 generates a notify saying the zone needs to be re-evaluated whenever
its fan is switched on or off.  This produced an infinite loop.  Also, note
that running _SCP can generate the same notify.

Since we need to make sure old fan references are turned off when getting
new ones, run acpi_tz_monitor() first.  This will turn off any unneeded
fans.  Then, check for new settings.  After that, run acpi_tz_monitor()
again to turn on/off any fans referenced by the new settings.

Tested by:	brooks
2004-09-07 17:02:08 +00:00
Peter Wemm
c591d41f7c Add a suffix descriptor for the acpi thermal values as a hint for the userland
sysctl tool to print a more readable value for temperatures.
2004-08-30 22:42:10 +00:00
Nate Lawson
956690d41b MPSAFE locking
* Restructure the event handling path.  acpi_tz_thread() now calls
  acpi_tz_timeout() any time an event occurs.  acpi_tz_timeout() checks
  the flags and calls acpi_tz_power_profile(), acpi_tz_establish(), and
  acpi_tz_monitor() as appropriate.  Notifies only do a wakeup and let
  acpi_tz_thread() do the actual work.  This path is cleaner and allows
  locking since the call path is now always a D.A.G.
* Add the acpi_tz_signal() function to set flags and wake the thread.
* Remove the tz_tmp_updating flag since calls are serialized by
  acpi_tz_thread().
* Remove Giant locking.
2004-08-13 06:22:17 +00:00
Poul-Henning Kamp
fe12f24bb0 Add missing <sys/module.h> includes 2004-05-30 20:08:47 +00:00
Nate Lawson
09a98d8ce9 Remove call to _INI for thermal devices. ACPI-CA now calls _INI for
Devices, ThermalZones, and Processors.
2004-05-25 04:18:22 +00:00
Nate Lawson
2fb3498126 Add back sys/reboot.h which is needed. 2004-05-06 02:57:24 +00:00
Nate Lawson
869ec176fc Make unnecessary globals static and remove unused includes.
Pointed out by:	cscout
2004-05-06 02:18:58 +00:00
Nate Lawson
881c6e063e Remove a check for the return value added in rev 1.41. It's not an error
to fail to turn off a fan, since the case is that it's usually already off.
2004-04-12 05:04:47 +00:00
Nate Lawson
64278df5e0 Add MODULE_DEPEND entries so some of these drivers can eventually be
loaded separately from ACPI (i.e., embedded use).
2004-04-09 18:14:32 +00:00
Nate Lawson
aa95c5b148 Replace more ad-hoc versions of acpi_GetReference(). Since the type of
Reference objects changed from ACPI_TYPE_ANY to ACPI_TYPE_LOCAL_REFERENCE
in Oct. 2002, this may help systems where switching the cooler on failed.
We support both types for now until this sorts out.
2004-04-09 06:55:50 +00:00
Nate Lawson
9db195a8d1 A user can set tz_requested via the hw.acpi.thermal.tzX.active sysctl.
The previous logic meant that if a user sets it to a minimal cooling value
acpi_thermal will not use higher cooling levels.  Reverse the logic so that
the user requesting a level (say, 2) also gets 0 - 1 also.

PR:		kern/61592
Submitted by:	Andrew Thompson <andy@fud.org.nz>
2004-03-05 18:06:31 +00:00
Nate Lawson
c310653ea1 Change to acpi_{Get,Set}Integer to provide both methods. Convert all
callers to the new API.

Submitted by:	Mark Santcroos <marks@ripe.net>
2004-03-03 18:34:42 +00:00
Nate Lawson
2881b39793 Call _INI on Thermal Zones as well as devices. 2004-02-28 22:43:18 +00:00
Nate Lawson
526785c638 Notify the user (at kern.emerg) that the system will be shutting down if
it is still above the critical temperature on the next poll cycle.  This
is a 10 second advance notice by default.  Document the private
(non-standard) notify we will be using with devd(8).
2004-02-03 04:18:56 +00:00
Nate Lawson
322141f1e2 If the temperature is at _HOT or _CRT for 3 sequential readings, shutdown
the system.  Also, decrease the poll interval to 10 seconds from 30
seconds.  This is needed because some systems will report an invalid high
temperature for one poll cycle.  It is suspected this is due to the
embedded controller timing out.  A typical value is 138C for one cycle on a
system that is otherwise 65C.  This prevents the system from prematurely
shutting down after one invalid reading.  It will still shut down after 30
seconds of high temperature, which is the same as previous default
behavior.

Tested by:	Scott Lambert <lambert AT lambertfam.org>
2004-02-02 18:03:35 +00:00
Nate Lawson
5ce6805764 Bite the bullet and uncomment the shutdown() in case we hit the _CRT or
_HOT temperatures.  We have to do this at some point to keep from getting
imp(tm) melted hardware.
2004-01-12 17:59:10 +00:00
Nate Lawson
3fb343ac12 Use the appropriate values for the notifies. No change in behavior
since both notifies result in the same function being called.

Found by:	documenting the code
2003-12-31 19:11:19 +00:00
Nate Lawson
9b937d4836 Add devctl(4) notify support to ACPI. Various subsystems now notify
userland whenever events occur.  See the example in devd.conf below
to see how to use it.
2003-10-25 05:03:25 +00:00
Nate Lawson
656b9dd5c3 Consistently print attach messages. 2003-09-26 05:24:55 +00:00
Nate Lawson
be2b179704 Style and whitespace changes. Also, make the ivar functions non-inline
since inlining failed due to the size of BUS_*
2003-08-28 16:06:30 +00:00
David E. O'Brien
aad970f1fe Use __FBSDID().
Also some minor style cleanups.
2003-08-24 17:55:58 +00:00
John Baldwin
fc0ea94a7d Catch up to changes in acpivar.h to add support for using ACPI on
4-stable systems.

Sponsored by:	The Weather Channel
2002-10-16 17:28:53 +00:00
Scott Long
316ec49abd Some kernel threads try to do significant work, and the default KSTACK_PAGES
doesn't give them enough stack to do much before blowing away the pcb.
This adds MI and MD code to allow the allocation of an alternate kstack
who's size can be speficied when calling kthread_create.  Passing the
value 0 prevents the alternate kstack from being created.  Note that the
ia64 MD code is missing for now, and PowerPC was only partially written
due to the pmap.c being incomplete there.
Though this patch does not modify anything to make use of the alternate
kstack, acpi and usb are good candidates.

Reviewed by:	jake, peter, jhb
2002-10-02 07:44:29 +00:00
Mitsuru IWASAKI
cfd820d382 Fix a bug about the cooling system controlling in acpi_thermal driver.
Recent version of ACPI CA returns the package object which contains
object reference elements if the elements are named objects.
We need to be careful when you use acpi_ForeachPackageObject() in new
code...
2002-08-27 07:53:55 +00:00
Bruce Evans
e788f79698 Fixed printf format errors which apparently crept in while -Wformat was
disabled for gcc-3.
2002-05-25 11:18:03 +00:00
Peter Wemm
b4a052380f Brutally deal with __func__ being 'const char *' on gcc-3.1. 2002-05-19 06:16:47 +00:00
Mitsuru IWASAKI
899ccf541a Add generalized power profile code.
This makes other power-management system (APM for now) to be able to
generate power profile change events (ie. AC-line status changes), and
other kernel components, not only the ACPI components, can be notified
the events.

 - move subroutines in acpi_powerprofile.c (removed) to kern/subr_power.c
 - call power_profile_set_state() also from APM driver when AC-line
   status changes
 - add call-back function for Crusoe LongRun controlling on power
   profile changes for a example
2002-03-04 18:46:13 +00:00
Mike Smith
5da19f398a The thermal thread needs to take Giant before it does anything with the
interpreter.

Submitted by:	Magnus B{ckstr|m <b@etek.chalmers.se>
2002-02-25 02:21:22 +00:00
Mike Smith
1a6f2d2ab3 Match namespace cleanup changes in ACPI CA 20020217 update.
Use ACPI_SUCCESS/ACPI_FAILURE consistently.
The AcpiGetInto* interfaces are obsoleted by ACPI_ALLOCATE_BUFFER.

Convert to using a kthread rather than timeout() to avoid problems
with the interpreter sleeping.
2002-02-23 05:29:23 +00:00
Mike Smith
3273b00523 Staticise devclasses and some unnecessarily global variables. 2002-01-08 06:46:01 +00:00
Mitsuru IWASAKI
c573e654b7 Add OS layer ACPI mutex and threading support.
- Temporary fix a bug of Intel ACPI CA core code.
 - Add OS layer ACPI mutex support.  This can be disabled by
   specifying option ACPI_NO_SEMAPHORES.
 - Add ACPI threading support.  Now that we have a dedicate taskqueue for
   ACPI tasks and more ACPI task threads can be created by specifying option
   ACPI_MAX_THREADS.
 - Change acpi_EvaluateIntoBuffer() behavior slightly to reuse given
   caller's buffer unless AE_BUFFER_OVERFLOW occurs.  Also CM battery's
   evaluations were changed to use acpi_EvaluateIntoBuffer().
 - Add new utility function acpi_ConvertBufferToInteger().
 - Add simple locking for CM battery and temperature updating.
 - Fix a minor problem on EC locking.
 - Make the thermal zone polling rate to be changeable.
 - Change minor things on AcpiOsSignal(); in ACPI_SIGNAL_FATAL case,
   entering Debugger is easier to investigate the problem rather than panic.
2001-12-22 16:05:41 +00:00
Mitsuru IWASAKI
6971b3c7d1 Cleanups of verbose printing. All the messages for the debugging is
disabled unless verbose flag is set.  Also fix some messages in terms
of English.
The critical messages and error messages in probe/attach routine are
unchanged by this commit.
2001-11-18 18:12:07 +00:00
Mitsuru IWASAKI
e0157e3edc Two minor changes.
- Change _ACx sysctl oid from ten of _AC[0-9] to one _ACx.
 - Better error printing on _TMP evaluation.

Reviewed by:    msmith
2001-11-15 12:00:48 +00:00
Mitsuru IWASAKI
2d64460768 Some small improvements of ACPI thermal driver.
- Give a guaranteed minimum cooling run time to avoid too frequent
   cooling system On/Off switching.  The minimum cooling run time can be
   specified by hw.acpi.thermal.min_runtime in sec.
 - Refine message printing (_AC-1 -> NONE).
 - Add verbose mode enable/disable capability by hw.acpi.verbose in bool.

Reviewed by:	acpi-jp@ folks
2001-10-29 18:09:43 +00:00
Mitsuru IWASAKI
dbad09ef38 Just print a message in acpi_tz_monitor() only when new active state
is different from the previous active state.
This reduce tons of 'acpi_tz0: _AC0: temperature 64.0 >= setpoint 64.0'
messages.

Reviewed by:	msmith
2001-09-04 15:40:12 +00:00