Commit Graph

150 Commits

Author SHA1 Message Date
Thomas Renninger c3d6de698c ACPI video: if no ACPI backlight support, use vendor drivers
If an ACPI graphics device supports backlight brightness functions (cmp. with
latest ACPI spec Appendix B), let the ACPI video driver control backlight and
switch backlight control off in vendor specific ACPI drivers (asus_acpi,
thinkpad_acpi, eeepc, fujitsu_laptop, msi_laptop, sony_laptop, acer-wmi).

Currently it is possible to load above drivers and let both poke on the
brightness HW registers, the video and vendor specific ACPI drivers -> bad.

This patch provides the basic support to check for BIOS capabilities before
driver loading time. Driver specific modifications are in separate follow up
patches.

"acpi_backlight=vendor"
	Prever vendor driver over ACPI driver for backlight.
"acpi_backlight=video" (default)
	Prever ACPI driver over vendor driver for backlight.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-07 23:57:55 -05:00
Kay Sievers 0794469da3 ACPI: struct device - replace bus_id with dev_name(), dev_set_name()
This patch is part of a larger patch series which will remove
the "char bus_id[20]" name string from struct device. The device
name is managed in the kobject anyway, and without any size
limitation, and just needlessly copied into "struct device".

To set and read the device name dev_name(dev) and dev_set_name(dev)
must be used. If your code uses static kobjects, which it shouldn't
do, "const char *init_name" can be used to statically provide the
name the registered device should have. At registration time, the
init_name field is cleared, to enforce the use of dev_name(dev) to
access the device name at a later time.

We need to get rid of all occurrences of bus_id in the entire tree
to be able to enable the new interface. Please apply this patch,
and possibly convert any remaining remaining occurrences of bus_id.

We want to submit a patch to -next, which will remove bus_id from
"struct device", to find the remaining pieces to convert, and finally
switch over to the new api, which will remove the 20 bytes array
and does no longer have a size limitation.

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-Off-By: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-06 21:37:19 -05:00
Myron Stowe ad93a765c1 ACPI: Disambiguate processor declaration type
Declaring processors in ACPI namespace can be done using either a
"Processor" definition or a "Device" definition (see section 8.4 -
Declaring Processors; "Advanced Configuration and Power Interface
Specification", Revision 3.0b).  Currently the two processor
declaration types are conflated.

This patch disambiguates the processor declaration's definition type
enabling subsequent code to behave uniquely based explicitly on the
declaration's type.

Signed-off-by: Myron Stowe <myron.stowe@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-06 20:11:15 -05:00
Len Brown 5f50ef453d Merge branch 'misc' into test 2008-10-22 23:28:38 -04:00
Len Brown 0fbb3726f2 Merge branch 'ec' into test 2008-10-22 23:27:59 -04:00
Len Brown 462af435b3 Merge branch 'bugzilla-10503' into test 2008-10-22 23:20:01 -04:00
Len Brown bcb631f318 Merge branch 'acpica' into test 2008-10-22 23:19:51 -04:00
Lin Ming 55ac9a018f ACPI: replace ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ...) with printk
ACPI_DB_ERROR and ACPI_DB_WARN were removed from ACPICA core.
So replace ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ...) with printk(KERN_ERR PREFIX ...)
and ACPI_DEBUG_PRINT((ACPI_DB_WARN, ...) with printk(KERN_WARNING PREFIX ...)

We do not use ACPI_ERROR/ACPI_WARNING since they're not exported, see
-------------------------------------------------------------
commit 6468463abd
Author: Len Brown <len.brown@intel.com>
Date:   Mon Jun 26 23:41:38 2006 -0400

    ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)

    Signed-off-by: Len Brown <len.brown@intel.com>
-------------------------------------------------------------

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:41 -04:00
Len Brown ea5c8af9b1 ACPI: remove unused acpi_is_child_device()
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 18:01:12 -04:00
Zhao Yakui 39a0ad8710 ACPI : Load device driver according to the status of acpi device
According to ACPI spec when the status of some device is not present
but functional, the device is valid and the children of this device
should be enumerated. It means that the device should be added to
linux acpi device tree. But the device driver for this device should not
be loaded.
    The detailed info can be found in the section 6.3.7 of ACPI 3.0b spec.
    _STA may return bit 0 clear (not present) with bit 3 set (device is
functional). This case is used to indicate a valid device for which no
device driver should be loaded (for example, a bridge device.).
Children of this device may be present and valid. OS should continue
enumeration below a device whose _STA returns this bit combination

http://bugzilla.kernel.org/show_bug.cgi?id=3358

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 18:00:50 -04:00
Zhao Yakui eab4b64576 ACPI: Attach the ACPI device to the ACPI handle as early as possible
Attach the ACPI device to the ACPI handle as early as possible so that OS
can get the corresponding ACPI device by the acpi handle in the course
of getting the power/wakeup/performance flags.

http://bugzilla.kernel.org/show_bug.cgi?id=8049
http://bugzilla.kernel.org/show_bug.cgi?id=11000

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 17:59:36 -04:00
Zhao Yakui a51e145f37 ACPI: Get the device power state in the course of scanning device
Get the device power state in the course of scanning device if the device
power flag is power_managable. i.e. The device has the _PSx/_PRx object.

At the same time before the drivers/acpi/power module is loaded, there is no
relation between acpi_power_resource and acpi device. So the first parameter
of acpi_power_get_state is changed to acpi_handle.

http://bugzilla.kernel.org/show_bug.cgi?id=8049
http://bugzilla.kernel.org/show_bug.cgi?id=11000

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 17:58:00 -04:00
Zhao Yakui 455c8793d2 ACPI: Enable EC device immediately after ACPI full initialization
when there is no ECDT table and no _INI object for EC device, it will be
enabled before scanning ACPI device. But it is too late after the following
the commit is merged.
    >commit 7752d5cfe3
    > Author: Robert Hancock <hancockr@shaw.ca>
    > Date:   Fri Feb 15 01:27:20 2008 -0800
       >x86: validate against acpi motherboard resources

   After the above commit is merged, OS will check whether MCFG area is
reserved in ACPI motherboard resources by calling the function of
acpi_get_devices when there exists MCFG table. In the acpi_get_devices the _STA
object will be evaluated to check the status of the ACPI device. On some broken
BIOS the MYEC object of EC device is initialized as one, which indicates that
EC operation region is already accessible before enabling EC device.So on these
broken BIOS the EC operation region will be accessed in course of evaluating
the _STA object before enabling EC device, which causes that OS will print the
following warning messages:
    >ACPI Error (evregion-0315): No handler for Region [EC__] (ffff88007f8145e8)
[EmbeddedControl] [20080609]
    >ACPI Error (exfldio-0290): Region EmbeddedControl(3) has no handler [20080321]
    >ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.SBRG.
         EC__.BAT1._STA] (Node ffff81013fc17a00), AE_NOT_EXIST
    >ACPI Error (uteval-0233): Method execution failed [\_SB_.PCI0.SBRG.EC__.BAT1.
         _STA] (Node ffff81013fc17a00), AE_NOT_EXIST

Although the above warning message is harmless, it looks confusing.
So it is necessary to enable EC device as early as possible.Maybe it is
appropriate to enable it immediately after ACPI full initialization.

http://bugzilla.kernel.org/show_bug.cgi?id=11255
http://bugzilla.kernel.org/show_bug.cgi?id=11374
http://bugzilla.kernel.org/show_bug.cgi?id=11660

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-11 02:00:02 -04:00
Pavel Machek db89b4f0db ACPI: catch calls of acpi_driver_data on pointer of wrong type
Catch attempts to use of acpi_driver_data on pointers of wrong type.

akpm: rewritten to use proper C typechecking and remove the
"function"-used-as-lvalue thing.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10 18:05:53 -04:00
Alexey Starikovskiy 4b5fcb353b ACPI: acpi_driver_data could only be applied to acpi_device
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Hannes Reinecke <hare@suse.de>

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10 18:05:52 -04:00
Zhang Rui faee816b15 ACPI: don't enable control method power button as wakeup device when Fixed Power button is used
don't enable control method power button as wakeup device
when Fixed Power button is used.

http://bugzilla.kernel.org/show_bug.cgi?id=10503

Tested-by: walken@zoy.org <walken@zoy.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-06 22:31:11 -04:00
Greg Kroah-Hartman fc3a8828b1 driver core: fix a lot of printk usages of bus_id
We have the dev_printk() variants for this kind of thing, use them
instead of directly trying to access the bus_id field of struct device.

This is done in order to remove bus_id entirely.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21 21:54:53 -07:00
Linus Torvalds dc7c65db28 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (72 commits)
  Revert "x86/PCI: ACPI based PCI gap calculation"
  PCI: remove unnecessary volatile in PCIe hotplug struct controller
  x86/PCI: ACPI based PCI gap calculation
  PCI: include linux/pm_wakeup.h for device_set_wakeup_capable
  PCI PM: Fix pci_prepare_to_sleep
  x86/PCI: Fix PCI config space for domains > 0
  Fix acpi_pm_device_sleep_wake() by providing a stub for CONFIG_PM_SLEEP=n
  PCI: Simplify PCI device PM code
  PCI PM: Introduce pci_prepare_to_sleep and pci_back_from_sleep
  PCI ACPI: Rework PCI handling of wake-up
  ACPI: Introduce new device wakeup flag 'prepared'
  ACPI: Introduce acpi_device_sleep_wake function
  PCI: rework pci_set_power_state function to call platform first
  PCI: Introduce platform_pci_power_manageable function
  ACPI: Introduce acpi_bus_power_manageable function
  PCI: make pci_name use dev_name
  PCI: handle pci_name() being const
  PCI: add stub for pci_set_consistent_dma_mask()
  PCI: remove unused arch pcibios_update_resource() functions
  PCI: fix pci_setup_device()'s sprinting into a const buffer
  ...

Fixed up conflicts in various files (arch/x86/kernel/setup_64.c,
arch/x86/pci/irq.c, arch/x86/pci/pci.h, drivers/acpi/sleep/main.c,
drivers/pci/pci.c, drivers/pci/pci.h, include/acpi/acpi_bus.h) from x86
and ACPI updates manually.
2008-07-16 17:25:46 -07:00
Alok N Kataria 74523c9013 ACPI: fix checkpatch.pl complaints in scan.c
http://bugzilla.kernel.org/show_bug.cgi?id=9772

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-07-16 23:27:01 +02:00
Zhang Rui 26d46867b7 fix a deadlock issue when poking "eject" file
"/sys/devices/LNXSYSTM:00/.../eject" is used to evaluate _EJx method
and eject a device in user space.
But system hangs when poking the "eject" file because that
the device hot-removal code invoke the driver .remove method which will
try to remove the "eject" file as a result.

Queues the hot-removal function for deferred execution in this patch.
http://bugzilla.kernel.org/show_bug.cgi?id=9772

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-07-16 23:27:00 +02:00
Rafael J. Wysocki 77e766099e ACPI: Introduce acpi_device_sleep_wake function
The currect ACPI code attempts to execute _PSW at three different
places and in one of them only it tries to execute _DSW before _PSW,
which is inconsistent with the other two cases.

Move the execution of _DSW and _PSW into a separate function called
acpi_device_sleep_wake() and call it wherever appropriate instead of
executing _DSW and/or _PSW directly.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-07-07 16:25:57 -07:00
Len Brown 96916090f4 Merge branches 'release', 'acpica', 'bugzilla-10224', 'bugzilla-9772', 'bugzilla-9916', 'ec', 'eeepc', 'idle', 'misc', 'pm-legacy', 'sysfs-links-2.6.26', 'thermal', 'thinkpad' and 'video' into release 2008-04-30 13:58:00 -04:00
Thomas Renninger 66fb9d120e ACPI: Cleanup: Remove unneeded, multiple local dummy variables
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29 10:51:45 -04:00
Bob Moore cd0b224824 ACPICA: Fixes for external Reference Objects
All Reference Objects returned via the AcpiEvaluteObject interface
are now marked as type "REFERENCE" instead of "ANY". The type ANY
is now reservered for NULL objects - either NULL package elements
or unresolved named references.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-22 19:08:51 -04:00
Zhao Yakui 729b2bdbfa ACPI : Disable the device's ability to wake the sleeping system in the boot phase
In some machines some GPE is shared by several ACPI devices, for example:
sleep button, keyboard, mouse. At the same time one of them is
non-wake(runtime) device and the other are wake devices. In such case OSPM
should call the _PSW object to disable the device's ability to
wake the sleeping system in the boot phase.
Otherwise there will be ACPI interrupt flood triggered by the GPE input.

The _PSW object is depreciated in ACPI 3.0 and is replaced by _DSW.
So it is necessary to call _DSW object first. Only when it is not
present will the _PSW object used.

http://bugzilla.kernel.org/show_bug.cgi?id=10224

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui  <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-09 21:57:22 -04:00
Zhang Rui 5c9fcb5dee ACPI: fix a regression of ACPI device driver autoloading
commit 3620f2f2f3 sets the cid of
ACPI video/dock/bay device and leaves the hid empty.
As a result, "modalias" should export the cid for
devices which don't have a hid.

ACPI Video driver is not autoloaded with
commit 3620f2f2f3 applied.
"cat /sys/.../device:03(acpi video bus)/modalias" shows nothing.

ACPI Video driver is autoloaded after revert that commit.
"cat /sys/.../LNXVIDEO:0x/modalias" shows "acpi:LNXVIDEO:"

ACPI Video driver is autoloaded with commit
3620f2f2f3 and this patch applied.
"cat /sys/.../device:03(acpi video bus)/modalias"
shows "acpi:LNXVIDEO:"

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-03-25 22:48:37 -04:00
Len Brown b4de123a0b Merge branches 'release', 'ejd', 'sony' and 'wmi' into release 2008-03-13 01:59:52 -04:00
Harvey Harrison 96b2dd1f1f ACPI: replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-03-11 01:58:41 -04:00
Holger Macht 3b5fee5952 ACPI: Do not pass NULL to acpi_get_handle() when looking for _EJD
When trying to get the acpi_handle from an acpi_buffer, pass
ACPI_ROOT_OBJECT instead of NULL to acpi_get_handle(). This fixes the
detection of dock dependent bays.

Signed-off-by: Holger Macht <hmacht@suse.de>
Tested-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-21 07:25:47 -05:00
Len Brown a733a5da97 Merge branches 'release' and 'fluff' into release
Conflicts:

	drivers/acpi/scan.c
	include/linux/acpi.h

Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07 03:38:22 -05:00
Len Brown 87ecd5cdda ACPI: add missing prink prefix strings
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07 03:32:27 -05:00
Len Brown 8f859016ea Merge branches 'release' and 'autoload' into release 2008-02-07 03:07:55 -05:00
Joe Perches 3c5f9be461 drivers/acpi/: Spelling fixes
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 17:06:17 +02:00
Alexey Starikovskiy c04209a794 ACPI: EC: Enable boot EC before bus_scan
Some _STA methods called during bus_scan() might require EC region handler,
which might be enabled later in the scan.
Enable it explicitly before scan to avoid errors.

Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9627

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-01 14:12:55 -05:00
Frank Seidel 3620f2f2f3 ACPI: Fix autloading of dock, video, bay and all linux specific HID drivers
References: https://bugzilla.novell.com/show_bug.cgi?id=302482

Due to the new autloading of acpi drivers, the dock driver
wasn't loaded anymore as there is no HID to identify it with
(dock is needed if ACPI has a  _DCK method).
This patch is a workaround for this, original by Thomas Renninger,
revised first by Kay Sievers and last by Frank Seidel.
V2 of this patch fixed problems on systems without a defined _CID for
the docking devices.

Signed-off-by: Thomas Renninger <trenn@novell.com>
Signed-off-by: Kay Sievers <kasievers@novell.com>
Signed-off-by: Frank Seidel <fseidel@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-08 01:51:27 -05:00
Kay Sievers 7eff2e7a8b Driver core: change add_uevent_var to use a struct
This changes the uevent buffer functions to use a struct instead of a
long list of parameters. It does no longer require the caller to do the
proper buffer termination and size accounting, which is currently wrong
in some places. It fixes a known bug where parts of the uevent
environment are overwritten because of wrong index calculations.

Many thanks to Mathieu Desnoyers for finding bugs and improving the
error handling.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:01 -07:00
Adrian Bunk b3e572d2eb make drivers/acpi/scan.c:create_modalias() static
This patch makes the needlessly global create_modalias() static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 01:38:51 -04:00
Thomas Renninger 29b71a1ca7 ACPI: autoload modules - Create ACPI alias interface
Modify modpost (file2alias.c) to add acpi*:XYZ0001: alias in modules.alias
like:
grep acpi /lib/modules/2.6.22-rc4-default/modules.alias
alias acpi*:SNY5001:* sony_laptop
alias acpi*:SNY6001:* sony_laptop
for e.g. the sony_laptop module.
This module matches against all ACPI devices with a HID or CID of SNY5001
or SNY6001

Export an uevent and modalias sysfs file containing the string:
[MODALIAS=]acpi:PNP0C0C:
additional CIDs are concatenated at the end.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-07-23 13:56:16 -04:00
David Brownell 55955aad7c PNPACPI sets pnpdev->dev.archdata
Teach PNPACPI how to hook up its devices to their ACPI nodes, so that
pnpdev->dev.archdata points to the parallel acpi device node.  Previously
this only worked for PCI, leaving a notable hole.

Export "acpi_bus_type" so this can work.

Remove some extraneous whitespace.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:08 -07:00
Bjorn Helgaas 0c0e892101 ACPI: use _STA bit names rather than 0x0F
Be explicit about what "device->status = 0x0F" really means.

syntax only.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-04-25 14:20:58 -04:00
Len Brown 7cda93e008 ACPI: delete extra #defines in /drivers/acpi/ drivers
Cosmetic only.

Except in a single case, #define ACPI_*_DRIVER_NAME
were invoked 0 or 1 times.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-12 23:50:52 -05:00
Len Brown f52fd66d2e ACPI: clean up ACPI_MODULE_NAME() use
cosmetic only

Make "module name" actually match the file name.
Invoke with ';' as leaving it off confuses Lindent and gcc doesn't care.
Fix indentation where Lindent did get confused.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-12 22:42:12 -05:00
Len Brown 6b259707d5 Pull trivial into test branch
Conflicts:

	drivers/acpi/scan.c

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-03 01:39:07 -05:00
Zhang Rui 5473526605 ACPI: bay: Convert ACPI Bay driver to be compatible with sysfs update.
Set fake hid for ejectable drive bay.
	Match bay devices by checking the hid.
	Remove .match method of Bay driver.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-03 01:14:56 -05:00
Len Brown 975a8e3ed2 Pull sysfs into test branch
Conflicts:

	Documentation/feature-removal-schedule.txt
	include/acpi/acpi_drivers.h

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-03 01:14:35 -05:00
Alexey Starikovskiy cee324b145 ACPICA: use new ACPI headers.
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:28 -05:00
Alexey Starikovskiy ad71860a17 ACPICA: minimal patch to integrate new tables into Linux
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:22 -05:00
Len Brown 7ac2735462 ACPI: delete unused acpi_device_get_debug_info()
Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-30 02:13:44 -05:00
Robert P. J. Day 37cabc8164 ACPI: Correct ACPI_DEBUG_OUTPUT typo
-#ifdef CONFIG_ACPI_DEBUG_OUTPUT
+#ifdef ACPI_DEBUG_OUTPUT

As the former doesn't exist.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-30 01:54:51 -05:00
Zhang Rui bb0958544f ACPI: use more understandable bus_id for ACPI devices
Some of the ACPI devices use the internal fake hids
which are exposed to userspace as devces' bus_id after sysfs conversion.
To make it more friendly, we convert them to more understandable strings.

For those devices w/o PNPids, we use "device:instance_no" as the bus_id
instead of "PNPIDNON:instance_no".

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-05 23:43:00 -05:00
Rui Zhang 2786f6e388 ACPI: fix Supermicro X7DB8+ Boot regression
http://bugzilla.kernel.org/show_bug.cgi?id=7695

Originally we converted bind/unbind to use a new pci bridge driver.
The driver will add/remove _PRT, so we can eventually remove
.bind/.unbind methods.

But we found that some of the _ADR-Based devices don't have _PRT,
i.e. they are not managed by the new ACPI PCI bridge driver.
So that .bind method is not called for some _ADR-Based devices,
which leads to a failure.

Now we make ACPI PCI Root Bridge Driver scan and binds all _ADR-Based devices
once the driver is loaded, in the .add method of ACPI PCI Root Bridge driver.

Extra code path for calling .bind/.unbind when _ADR-Based devices
are hot added/removed is also added.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-21 03:07:37 -05:00
Zhang Rui e49bd2dd5a ACPI: use PNPID:instance_no as bus_id of ACPI device
Previously we used the device name in the DSDT, but would
crash upon encountering a duplicate. Also, exposing the
DSDT device name to the user in a patch isn't a good idea,
because it is arbitrary.

After some discussion, we finally decided to use
"PNPID:instance_no" as the bus_id of ACPI devices.

Two attributes for each device are added at the same time,
the full pathname in ACPI namespace and hardware_id if it has.

NOTE:	acpi_bus_id_list is used to keep the information of PNPID
	and instance number of the given PNPID. Loop the
	acpi_bus_id_list to find the instance_no of the	same PNPID
	when register a device. If failed, i.e. we don't have a
	node with this PNPID, allocate one and link it to this list.

NOTE:	Now I don't take the memory free work in charge.
	If necessary, I can add a reference count in
	struct acpi_device_bus_id, and check the reference and
	when unregister a device, i.e. memory is freed when
	the reference count of a given PNPID is 0.

Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-21 03:05:51 -05:00
Burman Yan 36bcbec7ce ACPI: replace kmalloc+memset with kzalloc
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-20 16:54:54 -05:00
Zhang Rui ae8433324b ACPI: Set fake hid for non-PNPID ACPI devices
We do this mainly because:
1.	hid is used to match ACPI devices and drivers.
	.match method which is incompatible to driver model
	can be deleted from acpi_driver.ops then.
2.	As the .uevent method mark ACPI drivers by PNPID,
	fake hid is set to non-PNPID devices so that udev script
	can load the right ACPI driver by looking for
	"HWID = " or "COMPTID = ".

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:35 -05:00
Li Shaohua db3e1cc325 ACPI: Convert ACPI PCI .bind/.unbind to use PCI bridge driver
acpi_device had a .bind/.unbind methods, but Linux driver model does not.
Cut ACPI PCI code over to use the Linux driver model methods.

Convert bind/unbind to use a new pci bridge driver.
The driver will add/remove _PRT, so we can eventually
remove .bind/.unbind methods.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:35 -05:00
Li Shaohua 96333578b0 ACPI: add acpi_bus_removal_type in acpi_device
Add removal_type in structure acpi_device for hot removal.

ACPI_BUS_REMOVAL_EJECT is used for ACPI device hot removal.
Only one parameter is allowed in .remove method due to driver model.
So removal_type is added to indicate different removal type.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:35 -05:00
Li Shaohua c4168bff32 ACPI: add acpi_bus_ops in acpi_device
Add acpi_bus_ops in acpi_device to support acpi hot plug.

NOTE:	Two methods .add and .start in acpi_driver.ops are
	called separately to probe ACPI devices, while only
	.probe method is called in driver model.
	As executing .add and .start separately is critical
	for ACPI device hot plug, we use acpi_bus_ops to
	distinguish different code path.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:34 -05:00
Patrick Mochel f883d9db00 ACPI: convert to sysfs framework
Setup new sysfs framework

1.	Remove /sys/firmware/acpi
2.	Add ACPI device in device tree.

File "eject" for every device that has _EJ0 method is moved from
/sys/firmware to /sys/devices.
Operation on this file is exactly the same as before.
i.e. echo 1 to "eject" will cause hot removal of this device.
Corresponding changes should be made in userspace for hot removal.

Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Zhang Rui<rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:34 -05:00
Patrick Mochel 1890a97ab3 ACPI: change registration interface to follow driver model
ACPI device/driver registration Interfaces are modified
to follow Linux driver model.

Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:34 -05:00
Patrick Mochel 5d9464a469 ACPI: add ACPI bus_type for driver model
Add ACPI bus_type for Linux driver model.

1.	.shutdown method is added into acpi_driver.ops
	needed by bus_type operations.
2.	remove useless parameter 'int state' in .resume method.
3.	change parameter 'int state'
	to 'pm_message_t state' in .suspend method.

Note:	The new .uevent method mark ACPI drivers by PNPID instead of by name.
	Udev script needs to look for "HWID=" or "COMPTID=" to load
	ACPI drivers as a result.

Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:34 -05:00
Patrick Mochel d43ec68e98 ACPI: add device_driver and hepler functions
Add device_driver into acpi_driver for driver model.
Add helper functions 'to_acpi_device' and 'to_acpi_driver'
to get structure acpi_device/acpi_driver by device/device_driver.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:34 -05:00
Zhang Rui 1d268b0a0f ACPI: rename some functions
We want the name 'to_acpi_device'.
And the current macro 'to_acpi_device' will be removed
after device model is setup.
So just simply rename them.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:34 -05:00
Zhang Rui 9e89dde2b0 ACPI: clean up scan.c
Adjust the code and make code doing similar things together.
No logic changes.

Signed-off-by : Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-12-15 23:38:34 -05:00
Randy Dunlap 9b6d97b64e ACPI: scan: handle kset/kobject errors
Check and handle kset_register() and kobject_register() init errors.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-07-12 12:51:18 -04:00
Len Brown c8f7a62cdd Revert "Revert "ACPI: dock driver""
This reverts 953969ddf5 commit.
2006-07-09 17:22:28 -04:00
Linus Torvalds 953969ddf5 Revert "ACPI: dock driver"
This reverts commit a5e1b94008.

Adrian Bunk points out that it has build errors, and apparently no
maintenance. Throw it out.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-09 08:47:46 -07:00
Len Brown b197ba3c70 Pull acpi_os_free into release branch 2006-07-01 17:19:08 -04:00
Adrian Bunk 9e5289f4dd ACPI: drivers/acpi/scan.c: make acpi_bus_type static
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-30 14:28:50 -04:00
Len Brown 02438d8771 ACPI: delete acpi_os_free(), use kfree() directly
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-30 03:19:10 -04:00
Kristen Accardi a5e1b94008 ACPI: dock driver
Create a driver which lives in the acpi subsystem to handle dock events.
This driver is not an "ACPI" driver, because acpi drivers require that the
object be present when the driver is loaded.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-28 03:07:16 -04:00
Patrick Mochel d550d98d33 ACPI: delete tracing macros from drivers/acpi/*.c
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-27 00:41:40 -04:00
Len Brown 6468463abd ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-27 00:01:06 -04:00
Thomas Renninger a6fc67202e ACPI: Enable ACPI error messages w/o CONFIG_ACPI_DEBUG
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-26 23:58:43 -04:00
Len Brown 8f2ddb37e5 Pull bugzilla-5000 into release branch 2006-06-15 21:36:11 -04:00
Len Brown c080a3e69d Pull sem2mutex into release branch 2006-06-15 21:31:47 -04:00
Len Brown 69cd291c6b Pull acpi_bus_register_driver into release branch
Conflicts:

	drivers/acpi/asus_acpi.c
	drivers/acpi/scan.c
2006-06-15 21:28:57 -04:00
Len Brown 63518472c0 Pull trivial1 into release branch 2006-06-15 15:37:09 -04:00
Len Brown 531881d665 ACPI: pass pm_message_t from acpi_device_suspend() to root_suspend()
in case we want to decode it for future use in acpi_op_suspend(..., state)

also, inline new 1-liner static function

http://bugzilla.kernel.org/show_bug.cgi?id=5000

Signed-off-by: Len Brown <len.brown@intel.com>
2006-05-15 03:06:41 -04:00
Patrick Mochel 5b3272655a ACPI: create acpi_device_suspend()/acpi_device_resume()
updated and tested by Konstantin Karasyov

http://bugzilla.kernel.org/show_bug.cgi?id=5000

Signed-off-by: Patrick Mochel <patrick.mochel@intel.com>
Signed-off-by: Konstantin Karasyov <konstantin.karasyov @intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-05-15 02:44:47 -04:00
Bjorn Helgaas 06ea8e08ae ACPI: acpi_bus_unregister_driver() returns void
Nobody looks at the return value, and this brings it into line with
pci_unregister_driver(), etc.  Also removed validation of the driver
pointer passed in to register and unregister.  More consistent, and we'll
find bugs faster if we fault rather than returning an error that's ignored.

Also makes internal functions acpi_device_unregister() and
acpi_driver_detach() void, since nobody uses their returns either.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-05-13 23:23:57 -04:00
Len Brown 415d320a23 ACPI: delete unused acpi_bus_drivers_lock
acpi_bus_drivers is protected by acpi_device_lock

Signed-off-by: Len Brown <len.brown@intel.com>
2006-05-13 21:35:56 -04:00
Ashok Raj eefa27a93a ACPI: Allow hot-add of ejected processor
acpi_eject_store() didn't trim processors, causing subsequent
hot-add to fail.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-01 22:45:30 -05:00
Bjorn Helgaas 1a36561607 ACPI: simplify scan.c coding
No functional changes; just remove leftover, unused "buffer" and simplify
control flow (no need to remember error values and goto the end, when we can
simply return the value directly).

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-01 21:53:51 -05:00
Bjorn Helgaas 9d9f749b31 ACPI: make acpi_bus_register_driver() return success/failure, not device count
acpi_bus_register_driver() should not return the number of devices claimed.
We're not asking to find devices, we're making a driver available to devices,
including hot-pluggable devices that may appear in the future.

I audited all callers of acpi_bus_register_driver(), and except asus_acpi.c
and sonypi.c (fixed in previous patches), all either ignore the return value
or test only for failure (<0).

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-01 21:42:57 -05:00
Kristen Accardi ceaba66305 [PATCH] acpi: export acpi_bus_trim
Export the acpi_bus_trim function so that the pci hotplug driver can
use it.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23 14:35:15 -08:00
Len Brown 9fdb62af92 [ACPI] merge 3549 4320 4485 4588 4980 5483 5651 acpica asus fops pnpacpi branches into release
Signed-off-by: Len Brown <len.brown@intel.com>
2006-01-24 17:52:48 -05:00
Randy Dunlap d758a8fa8c [ACPI] fix kernel-doc warnings in acpi/scan.c
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-01-07 05:05:31 -05:00
Len Brown ed03f430cd Pull pnpacpi into acpica branch 2006-01-07 03:50:18 -05:00
Kay Sievers 312c004d36 [PATCH] driver core: replace "hotplug" by "uevent"
Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:08 -08:00
Bob Moore c51a4de85d [ACPI] ACPICA 20051117
Fixed a problem in the AML parser where the method thread
count could be decremented below zero if any errors
occurred during the method parse phase. This should
eliminate AE_AML_METHOD_LIMIT exceptions seen on some
machines. This also fixed a related regression with the
mechanism that detects and corrects methods that cannot
properly handle reentrancy (related to the deployment of
the new OwnerId mechanism.)

Eliminated the pre-parsing of control methods (to detect
errors) during table load. Related to the problem above,
this was causing unwind issues if any errors occurred
during the parse, and it seemed to be overkill. A table
load should not be aborted if there are problems with
any single control method, thus rendering this feature
rather pointless.

Fixed a problem with the new table-driven resource manager
where an internal buffer overflow could occur for small
resource templates.

Implemented a new external interface, acpi_get_vendor_resource()
This interface will find and return a vendor-defined
resource descriptor within a _CRS or _PRS
method via an ACPI 3.0 UUID match. (from Bjorn Helgaas)

Removed the length limit (200) on string objects as
per the upcoming ACPI 3.0A specification. This affects
the following areas of the interpreter: 1) any implicit
conversion of a Buffer to a String, 2) a String object
result of the ASL Concatentate operator, 3) the String
object result of the ASL ToString operator.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-12-10 00:27:56 -05:00
Thomas Renninger bd7ce5b5ff [ACPI] fix HP nx8220 boot hang regression
This patch reverts the acpi_bus_find_driver() return value check
that came in via the PCI tree via 3fb02738b0

        [PATCH] acpi bridge hotadd: Allow ACPI .add and .start
	operations to be done independently

This particular change broke booting of some HP/Compaq laptops unless
acpi=noirq is used.

http://bugzilla.kernel.org/show_bug.cgi?id=5221
https://bugzilla.novell.com/show_bug.cgi?id=116763

Signed-off-by: Thomas Renninger <trenn@suse.de>
Cc: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-11-30 04:35:02 -05:00
Jesper Juhl 6044ec8882 [PATCH] kfree cleanup: misc remaining drivers
This is the remaining misc drivers/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in misc files in
drivers/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
Acked-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Len Brown <len.brown@intel.com>
Acked-by: "Antonino A. Daplas" <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:54:05 -08:00
Adrian Bunk 8713cbefaf [ACPI] add static to function definitions
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 00:20:13 -04:00
Len Brown 4be44fcd3b [ACPI] Lindent all ACPI files
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-05 00:45:14 -04:00
Len Brown 5028770a42 [ACPI] merge acpi-2.6.12 branch into latest Linux 2.6.13-rc...
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 17:21:56 -04:00
Keiichiro Tokunaga 6940fabaa3 [ACPI] hotplug Processor consideration in acpi_bus_add()
Signed-off-by: Keiichiro Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 00:00:14 -04:00
Rajesh Shah 3fb02738b0 [PATCH] acpi bridge hotadd: Allow ACPI .add and .start operations to be done independently
Create new interfaces to recursively add an acpi namespace object to the acpi
device list, and recursively start the namespace object.  This is needed for
ACPI based hotplug of a root bridge hierarchy where the add operation must be
performed first and the start operation must be performed separately after the
hot-plugged devices have been properly configured.

Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-27 21:52:42 -07:00
Dmitry Torokhov 70f2817a43 [PATCH] sysfs: (rest) if show/store is missing return -EIO
sysfs: fix the rest of the kernel so if an attribute doesn't
       implement show or store method read/write will return
       -EIO instead of 0 or -EINVAL or -EPERM.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20 15:15:03 -07:00
Martin Waitz 67be2dd1ba [PATCH] DocBook: fix some descriptions
Some KernelDoc descriptions are updated to match the current code.
No code changes.

Signed-off-by: Martin Waitz <tali@admingilde.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01 08:59:26 -07:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00