Commit Graph

12 Commits

Author SHA1 Message Date
Mike Smith
72e5754cfb Match namespace cleanup changes in ACPI CA 20020217 update. 2002-02-23 05:31:38 +00:00
Mike Smith
3273b00523 Staticise devclasses and some unnecessarily global variables. 2002-01-08 06:46:01 +00:00
Mike Smith
b2c98acc5e The Intel 440MX ACPI timer seems to work properly, so add it to the list
here.  Restructure slightly so that adding more devices is easier.

Submitted by:	Jose Gabriel J Marcelino <gabriel@maquina.com>
2001-08-05 23:20:32 +00:00
Mike Smith
feade91944 Reverse the logic here again with regards to "trusted" ACPI timer
implementations.  More of them seem to be broken, so only "trust"
timers we know work.
2001-08-03 09:52:53 +00:00
Mike Smith
d8a9fe36a1 Minor updates (no functional changes)
- Remove the beer-ware license (reqested by phk)
 - Reorganise so that the PIIX4 workaround code is kept together, and
   switch the workaround function via the timecounter struct, saving
   a compare in the read-timecounter codepath.  Also indicate that
   the workaround is active by changing the timecounter hardware string.
2001-07-30 08:57:55 +00:00
Mike Smith
7b60d04d2c The ACPI timer register corruption problem is resolved in the PIIX4
starting with the PIIX4M.  Restrict enabling the workaround to those
chips known to be buggy.
2001-07-27 09:01:13 +00:00
Mike Smith
787fa5b805 Implement a "proper" timecounter hung off the ACPI timer device.
This code is based on the mp_clock code by phk.  It attempts to
detect the PIIX4 (see comments for details) and use a workaround
for its problems.

This code is experimental, and could use some testing and review by a
timekeeping enthusiast.
2001-07-21 04:08:42 +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
Mike Smith
91467fc61d ACPI_NUMBER becomes ACPI_INTEGER. acpi_EvaluateNumber becomes
acpi_EvaluateInteger.

Use acpi_EvaluateInteger instead of doing things the hard way where
possible.

AcpiSetSystemSleepState (unofficial) becomes AcpiEnterSleepState.

Use the AcpiGbl_FADT pointer rather than searching for the FADT.
2001-01-31 09:30:57 +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