Commit Graph

41 Commits

Author SHA1 Message Date
Nate Lawson
656b9dd5c3 Consistently print attach messages. 2003-09-26 05:24:55 +00:00
Nate Lawson
c87cfaedf2 Bump the EC timeout from 50 to 100 ms. I believe the underlying issue is
global lock contention as symptoms only appear under heavy load (i.e. the
nightly periodic run).
2003-09-15 21:20:55 +00:00
David E. O'Brien
aad970f1fe Use __FBSDID().
Also some minor style cleanups.
2003-08-24 17:55:58 +00:00
Nate Lawson
a329ebca91 Add and document the hw.acpi.ec.poll_timeout tunable. 2003-07-30 16:22:53 +00:00
Nate Lawson
44904c4020 Add an informational debugging printf of the maximum time spent in
EcEventWait().  If you get AE_HARDWARE_NO_RESPONSE errors, please enable
this info by setting hw.acpi.verbose=1 in loader.conf.
2003-07-25 16:49:46 +00:00
Nate Lawson
c72508e283 Do not call acpi_MatchHid() for all probe cases since it accesses the
namespace.  To compensate for it only being used in the !ECDT case, use
a more robust approach to indicate a device was probed via ECDT by setting
the private ivar to be &acpi_ec_devclass.  Without the acpi_MatchHid() call
now, it might have been possible for a non-EC device to have had its magic
match our previous flag.

Pointed out by:		takawata
2003-07-20 21:12:21 +00:00
Nate Lawson
3a371f32b3 Close a race condition by passing status retrieved via a non-SCI call
to EcGpeQueryHandler on to any waiting threads through the softc.  Similar
behavior was in the original version.

Also:
* Merge EcQuery into EcGpeQueryHandler to simplify locking
* Hold EcLock from the initial read of the CSR down to the wakeup or
  until after the query command has been processed.
* ec_gpebit only needs to be a UINT8
2003-07-20 21:11:32 +00:00
Nate Lawson
f8335e3a97 Add ECDT (ACPI 2.0) support. This allows the EC to be enabled before the
namespace has been evaluated.  Machines with ACPI 2.0 expect this behavior
and have AML which calls EC functions early in the boot process.  If the
ECDT is not available, fall back to original probe behavior.

Other minor changes:
* Add GPE bit and GLK usage to the device announcement
* Always use the global lock in the ECDT case, but potentially downgrade to
  not using it if _GLK is 0 once the namespace is available.  This is
  announced with "Changing GLK from 1 to 0"
* Remove the acpi_object_list definitions which were earlier deprecated

Ideas from:	takawata
2003-07-20 00:48:38 +00:00
Nate Lawson
ff40920e9e Change the msleep part of EcWaitEvent to be a separate loop, fixing a
problem that for some very slow ECs (~6 ms occasionally) causes a
timeout.  Also finish resource cleanup in the error case in attach.

Tested by:	ume
2003-07-15 19:24:36 +00:00
Nate Lawson
6fca9360db Update code to work with 0619 dist
* Use ACPI_BUFFER as the type for AcpiGetObjectInfo
* Remove AcpiEnableEvent/AcpiClearEvent for ACPI_EVENT_FIXED (power/sleep
  buttons) as they are no longer needed
* Change calls to use the new GPE functions
* Add AcpiOs*Lock functions
2003-07-13 22:57:16 +00:00
Nate Lawson
1f04e8f501 Rewrite much of the embedded controller driver.
* Always use polled mode.  The intr approach did not work for many
  controllers and required the hw.acpi.ec.event_driven workaround.
* Only use an edge (not level) triggered GPE handler
* Add sc->ec_mtx for locking operations to a single EC.  There were
  many race conditions earlier between an SCI event and EcRead/Write.
* Use 1 ms as the global lock timeout
* Only acquire global lock if _GLK != 0
* Update EcWaitEvent to use an incremental backoff delay in its
  poll loop.  Wait 50 ms max instead of 10.  Most ECs respond
  in < 5 us (50 us when heavily loaded).  However, some time out
  occasionally even with a 10 ms timeout.  For delays past 1 ms, use
  msleep instead of DELAY to give SCI interrupts a chance to occur.
* Add EcCommand to send a command and wait for the appropriate event.
* The hw.acpi.ec.event_driven tunable is no longer applicable and
  has been removed.

Ideas from:	Linux
2003-07-10 17:22:46 +00:00
Nate Lawson
464c662efa Whitespace cleanups (verified with MD5 1832ce5ede6c58c844dfb53fd48f0eea).
Also clarify a macro expansion with an XXX.  I will be fixing access to
Acpi Global Lock in a subsequent commit.
2003-06-27 21:57:42 +00:00
Mitsuru IWASAKI
21b5fd3cfd Resolve conflicts arising from the ACPI CA 20021118 import. 2002-11-27 18:09:20 +00:00
Mitsuru IWASAKI
4690674e12 Add new loader tunable hw.acpi.ec.event_driven so that we control
EcWaitEventIntr()'s behavior.
Some EC controllers require this for working properly (including
sleep/wakeup).
2002-10-24 10:56:33 +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
Takanori Watanabe
4ec593593a Make interrupt driven EC transaction optional. 2002-07-02 03:38:07 +00:00
Peter Wemm
b4a052380f Brutally deal with __func__ being 'const char *' on gcc-3.1. 2002-05-19 06:16:47 +00:00
Mike Smith
dbd0058a4e Match namespace cleanup changes in ACPI CA 20020217 update.
Use ACPI_SUCCESS/ACPI_FAILURE consistently.

The ACPI global lock acquire takes a timeout value.  I'm not sure what
we should do about timeouts on it; a deadlock against this lock is
catastrophic.
2002-02-23 05:26:31 +00:00
Takanori Watanabe
f8372ade81 Fix error handling.
PR:30665
Submitted by:TOMITA Yoshinori <yoshint@flab.fujitsu.co.jp>
2002-01-31 01:23:22 +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
Mike Smith
76f2b644fd Synch with minor changes in the ACPI CA 20011120 snapshot. 2001-11-28 04:36:29 +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
Mike Smith
43896e913a Update usage of AcpiEnableEvent to reflect a new argument.
Fix acpi_DeviceIsPresent to check for valid _STA data and to check
the "present" and "functioning" bits.

Use acpi_DeviceIsPresent in acpi_pcib rather than rolling our own
(also broken) version.
2001-10-04 23:21:09 +00:00
Mike Smith
2668fa394a Don't parse our resources ourself, the ACPI core code must do it. 2001-08-30 00:45:12 +00:00
Mike Smith
4c1cdee628 Updates to match the ACPI CA 20010816 import:
- New debug macro (ACPI_DEBUG_PRINT), reducing debug-case code size.
 - New debug level/subsystem codes.
2001-08-26 22:50:15 +00:00
Mike Smith
bfae45aa43 Convert from acpi_strerror() to AcpiFormatException()
Fix dangling include of the dear departed acpi_ecreg.h
2001-07-21 10:24:37 +00:00
Mike Smith
da3b867e37 Merge the EC register definitions into the EC module proper, they're not
used anywhere else.

AcpiOsSleepUsec() -> AcpiOsStall()
2001-07-21 04:06:44 +00:00
Mike Smith
76d1dff4b4 Improve some error messages slightly. 2001-07-05 07:21:12 +00:00
Mike Smith
a9cf0dff08 Use msleep() when we sleep waiting for a GPE, since we are holding the
ACPI mutex.

Add some comments to EcWaitEventIntr.

Clean up deviant style, add debugging to be consistent.
2001-06-29 20:31:37 +00:00
Mike Smith
2a4ac806d7 - Updates for new constant naming in the ACPI CA 20010518 update.
- Use __func__ instead of __FUNCTION.
 - Support power-off to S3 or S5 (takawata)
 - Enable ACPI debugging earlier (with a sysinit)
 - Fix a deadlock in the EC code (takawata)
 - Improve arithmetic and reduce the risk of spurious wakeup in
   AcpiOsSleep.
 - Add AcpiOsGetThreadId.
 - Simplify mutex code (still disabled).
2001-05-29 20:13:42 +00:00
John Baldwin
ee785aa9e8 - Use a loop to read consecutive bytes from the embedded controller to
handle read and write requests for widths of multiple bytes.  This
  can be used to read 16-bit battery status registers for example.
- Remove some unused variables and #if 0'd debugging cruft.
- Don't complain about a GPE query that fails due to AE_NOT_FOUND if the
  query method was _Q00.
2001-02-26 20:36:56 +00:00
Mike Smith
42f6d122ed Add some debugging.
Use acpi_EvaluateInteger where possible.

Use FuncName rather than &FuncName when passing function addresses.

Don't evaluate the _REG method when we attach to an address space -
AcpiInstallAddressSpaceHandler does it for us.
2001-01-31 09:32:44 +00:00
John Baldwin
705a513a29 Axe an unused static softc. 2001-01-23 21:51:26 +00:00
Takanori Watanabe
7a1d55dfd0 Change Embedded Controller lock to ACPI Global Lock.This is needed for
mutual execution between  BIOS and OS.
2001-01-02 05:22:35 +00:00
Takanori Watanabe
b37c9b907b Change priority of procedure queueing.
This is needed to next ACPICA import.
2000-12-20 17:00:33 +00:00
Takanori Watanabe
874d21b468 Fix with debugging option.
Submitted by:	haro@tk.kubota.co.jp
2000-12-15 09:18:11 +00:00
Takanori Watanabe
c07572e7ad Make Embedded Controller driver interrupt driven. 2000-12-14 12:43:22 +00:00
Mike Smith
0ae554237c - Convert a lot of homebrew debugging output to use the ACPI CA debugging
infrastructure.  It's not perfect, but it's a lot better than what
   we've been using so far.  The following rules apply to this:
    o BSD component names should be capitalised
    o Layer names should be taken from the non-CA set for now.  We
      may elect to add some new BSD-specific layers later.

 - Make it possible to turn off selective debugging flags or layers
   by listing them in debug.acpi.layer or debug.acpi.level prefixed
   with !.

 - Fully implement support for avoiding nodes in the ACPI namespace.
   Nodes may be listed in the debug.acpi.avoid environment variable;
   these nodes and all their children will be ignored (although still
   scanned over) by ACPI functions which scan the namespace.  Multiple
   nodes can be specified, separated by whitespace.

 - Implement support for selectively disabling ACPI subsystem components
   via the debug.acpi.disable environment variable.  The following
   components can be disabled:
    o bus	creation/scanning of the ACPI 'bus'
    o children	attachment of children to the ACPI 'bus'
    o button	the acpi_button control-method button driver
    o ec	the acpi_ec embedded-controller driver
    o isa	acpi replacement of PnP BIOS for ISA device discovery
    o lid	the control-method lid switch driver
    o pci	pci root-bus discovery
    o processor CPU power/speed management
    o thermal	system temperature detection and control
    o timer	ACPI timecounter
   Multiple components may be disabled by specifying their name(s)
   separated by whitespace.

 - Add support for ioctl registration.  ACPI subsystem components may
   register ioctl handlers with the /dev/acpi generic ioctl handler,
   allowing us to avoid the need for a multitude of /dev/acpi* control
   devices, etc.
2000-12-08 09:16:20 +00:00
Mike Smith
042283a67b Update to work with the new ACPI CA snapshot.
- Use ACPI_PHYSICAL_ADDRESS
 - RSDT -> XSDT
 - FACP -> FADT
 - No APIC table support
 - Don't install a global EC handler; this has bad side-effects
   (it invokes _REG in *all* EC spaces in the namespace!)
 - Check for PCI bus instances already existing before adding them
2000-12-01 10:18:57 +00:00
Mike Smith
15e32d5d03 Initial FreeBSD OSPM (operating system power management) modules for
ACPICA.  Most of these are still works in progress.  Support exists for:

 - Fixed feature and control method power, lid and sleep buttons.
 - Detection of ISA PnP devices using ACPI namespace.
 - Detection of PCI root busses using ACPI namespace.
 - CPU throttling and sleep states (incomplete)
 - Thermal monitoring and cooling control (incomplete)
 - Interface to platform embedded controllers (mostly complete)
 - ACPI timer (incomplete)
 - Simple userland control of sleep states.
 - Shutdown and poweroff.
2000-10-28 06:59:48 +00:00