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path: root/drivers/acpi/button.c
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2009-10-13ACPI button: don't try to use a non-existent lid deviceJesse Barnes
If a call comes in to check the lid state but there's no lid device present, we should return -ENODEV. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-24Merge branch 'drm-intel-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: (57 commits) drm/i915: Handle ERESTARTSYS during page fault drm/i915: Warn before mmaping a purgeable buffer. drm/i915: Track purged state. drm/i915: Remove eviction debug spam drm/i915: Immediately discard any backing storage for uneeded objects drm/i915: Do not mis-classify clean objects as purgeable drm/i915: Whitespace correction for madv drm/i915: BUG_ON page refleak during unbind drm/i915: Search harder for a reusable object drm/i915: Clean up evict from list. drm/i915: Add tracepoints drm/i915: framebuffer compression for GM45+ drm/i915: split display functions by chip type drm/i915: Skip the sanity checks if the current relocation is valid drm/i915: Check that the relocation points to within the target drm/i915: correct FBC update when pipe base update occurs drm/i915: blacklist Acer AspireOne lid status ACPI: make ACPI button funcs no-ops if not built in drm/i915: prevent FIFO calculation overflows on 32 bits with high dotclocks drm/i915: intel_display.c handle latency variable efficiently ... Fix up trivial conflicts in drivers/gpu/drm/i915/{i915_dma.c|i915_drv.h}
2009-09-10ACPI button: provide lid status functionsJesse Barnes
Some drivers need to know when a lid event occurs and get the current status. This can be useful for when a platform firmware clobbers some hardware state at lid time, and a driver needs to restore things when the lid is opened again. Acked-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
2009-08-28ACPI: Move definition of PREFIX from acpi_bus.h to internal..hLen Brown
Linux/ACPI core files using internal.h all PREFIX "ACPI: ", however, not all ACPI drivers use/want it -- and they should not have to #undef PREFIX to define their own. Add GPL commment to internal.h while we are there. This does not change any actual console output, asside from a whitespace fix. Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-11ACPI: button: remove control method/fixed hardware distinctionsBjorn Helgaas
This patch removes the driver distinction between control method (CM) and fixed hardware (FF) buttons. We previously needed that so we could install either a fixed event handler or a notify handler, but the Linux/ACPI code now handles that for us, so we don't need to worry about it. Note that this removes the FF/CM annotation from the "info" files in /proc. For example, /proc/acpi/button/PWRF/info: -type: Power Button (FF) +type: Power Button I don't think there's anything meaningful user-space can do by knowing whether a button is a control method or a fixed hardware button, so nobody should be looking at the FF/CM. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-11ACPI: button: remove button->device pointerBjorn Helgaas
We no longer need a pointer from struct acpi_button back to the struct acpi_device. Everywhere we used that pointer, we either already have, or can easily get, the acpi_device pointer without using the copy from acpi_button. So this patch removes the structure element. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-11ACPI: button: cache hid/name/class pointersBjorn Helgaas
This patch adds temporaries to cache the acpi_device_hid(), acpi_device_name(), and acpi_device_class() pointers so we don't have to clutter the code with so many uses of those interfaces. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-11ACPI: button: use Linux style for getting driver_dataBjorn Helgaas
It's typical and slightly more compact to look up the driver_data structure by initializing the automatic variable at its definition. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-11ACPI: button: remove unnecessary null pointer checksBjorn Helgaas
Better to oops and learn about a bug than to silently cover it up. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-11ACPI: button: whitespace changesBjorn Helgaas
This patch changes a bit of whitespace to follow Linux conventions. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05ACPI: button: use .notify method instead of installing handler directlyBjorn Helgaas
This patch adds a .notify() method. The presence of .notify() causes Linux/ACPI to manage event handlers and notify handlers on our behalf, so we don't have to install and remove them ourselves. Note that events from fixed hardware buttons now show up as a special notify event, so to preserve user-space backward compatibility, we convert that back to ACPI_BUTTON_NOTIFY_STATUS. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Reviewed-by: Alex Chiang <achiang@hp.com> CC: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-31proc 2/2: remove struct proc_dir_entry::ownerAlexey Dobriyan
Setting ->owner as done currently (pde->owner = THIS_MODULE) is racy as correctly noted at bug #12454. Someone can lookup entry with NULL ->owner, thus not pinning enything, and release it later resulting in module refcount underflow. We can keep ->owner and supply it at registration time like ->proc_fops and ->data. But this leaves ->owner as easy-manipulative field (just one C assignment) and somebody will forget to unpin previous/pin current module when switching ->owner. ->proc_fops is declared as "const" which should give some thoughts. ->read_proc/->write_proc were just fixed to not require ->owner for protection. rmmod'ed directories will be empty and return "." and ".." -- no harm. And directories with tricky enough readdir and lookup shouldn't be modular. We definitely don't want such modular code. Removing ->owner will also make PDE smaller. So, let's nuke it. Kudos to Jeff Layton for reminding about this, let's say, oversight. http://bugzilla.kernel.org/show_bug.cgi?id=12454 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-11-11Merge branch 'ec' into releaseLen Brown
2008-11-11ACPICA: Use spinlock for acpi_{en|dis}able_gpeAlexey Starikovskiy
Disabling gpe might interfere with gpe detection/handling, thus producing "interrupt not handled" errors. Ironically, disabling of GPE from interrupt context is already under spinlock, so only userspace needs to start using it. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-07ACPI: consolidate ACPI_*_COMPONENT definitions in acpi_drivers.hBjorn Helgaas
Move all the component definitions for drivers to a single shared place, include/acpi/acpi_drivers.h. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-25ACPI: Always report a sync event after a lid state changeGuillem Jover
Currently not always an EV_SYN event is reported to userland after the EV_SW SW_LID event has been sent. This is easy to verify by using “input-events” from input-utils and just closing and opening the lid. Signed-off-by: Guillem Jover <guillem.jover@nokia.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22Merge branch 'ull' into testLen Brown
Conflicts: drivers/acpi/bay.c drivers/acpi/dock.c drivers/ata/libata-acpi.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-11ACPI: Change acpi_evaluate_integer to support 64-bit on 32-bit kernelsMatthew Wilcox
As of version 2.0, ACPI can return 64-bit integers. The current acpi_evaluate_integer only supports 64-bit integers on 64-bit platforms. Change the argument to take a pointer to an acpi_integer so we support 64-bit integers on all platforms. lenb: replaced use of "acpi_integer" with "unsigned long long" lenb: fixed bug in acpi_thermal_trips_update() Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10ACPI: catch calls of acpi_driver_data on pointer of wrong typePavel Machek
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>
2008-04-29acpi: use non-racy method for proc entries creationDenis V. Lunev
Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Len Brown <lenb@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-11ACPI: button: make real parent for input devices in device treeAndrey Borzenkov
Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2007-10-25ACPI: button: send initial lid state after add and resumeAlexey Starikovskiy
Input layer should know about initial state of lid switch, even before first notify. Reference: https://bugzilla.novell.com/show_bug.cgi?id=326814 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2007-10-19get rid of input BIT* duplicate definesJiri Slaby
get rid of input BIT* duplicate defines use newly global defined macros for input layer. Also remove includes of input.h from non-input sources only for BIT macro definiton. Define the macro temporarily in local manner, all those local definitons will be removed further in this patchset (to not break bisecting). BIT macro will be globally defined (1<<x) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: <dtor@mail.ru> Acked-by: Jiri Kosina <jkosina@suse.cz> Cc: <lenb@kernel.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Cc: <perex@suse.cz> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: <vernux@us.ibm.com> Cc: <malattia@linux.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-23ACPI: Schedule /proc/acpi/event for removalLen Brown
Schedule /proc/acpi/event for removal in 6 months. Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event() to make sure there is no confusion that it is for /proc/acpi/event only. Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event. There is no functional change if CONFIG_ACPI_PROC_EVENT=y Signed-off-by: Len Brown <len.brown@intel.com>
2007-07-23ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI ↵Thomas Renninger
drivers modpost is going to use these to create e.g. acpi:ACPI0001 in modules.alias. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-12ACPI: delete extra #defines in /drivers/acpi/ driversLen Brown
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>
2007-02-12ACPI: fix acpi_driver.name usageLen Brown
It was erroneously used as a description rather than a name. ie. turn this: lenb@se7525gp2:/sys> ls bus/acpi/drivers ACPI AC Adapter Driver ACPI Embedded Controller Driver ACPI Power Resource Driver ACPI Battery Driver ACPI Fan Driver ACPI Processor Driver ACPI Button Driver ACPI PCI Interrupt Link Driver ACPI Thermal Zone Driver ACPI container driver ACPI PCI Root Bridge Driver hpet into this: lenb@se7525gp2:~> ls /sys/bus/acpi/drivers ac battery button container ec fan hpet pci_link pci_root power processor thermal Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-12ACPI: clean up ACPI_MODULE_NAME() useLen Brown
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>
2007-02-03Pull sysfs into test branchLen Brown
Conflicts: Documentation/feature-removal-schedule.txt include/acpi/acpi_drivers.h Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-01ACPI: correct id for fixed buttonsAlexey Starikovskiy
ACPI_BUTTON_HID_POWERF was changed, but this change was not propogated to button.c, thus breaking detection of fixed power and sleep buttons. Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
2006-11-09ACPI: button: register with input layerDmitry Torokhov
In addition to signalling button/lid events through /proc/acpi/event, create separate input devices and report KEY_POWER, KEY_SLEEP and SW_LID through input layer. Also remove unnecessary casts and variable initializations, clean up formatting. Sleep button may autorepeat but userspace will have to filter duplicate sleep requests anyway (and discard unprocessed events right after wakeup). Unlike /proc/acpi/event interface input device corresponding to LID switch reports true lid state instead of just a counter. SW_LID is active when lid is closed. The driver now depends on CONFIG_INPUT. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Len Brown <len.brown@intel.com>
2006-07-10ACPI: add 'const' to several ACPI file_operationsArjan van de Ven
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-30ACPI: button: Remove unneeded acpi_handle from driver.Patrick Mochel
Signed-off-by: Patrick Mochel <mochel@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-30ACPI: button: Use acpi_device's handle instead of driver'sPatrick Mochel
Signed-off-by: Patrick Mochel <mochel@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-27ACPI: delete tracing macros from drivers/acpi/*.cPatrick Mochel
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-27ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)Len Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-26ACPI: Enable ACPI error messages w/o CONFIG_ACPI_DEBUGThomas Renninger
Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-05[ACPI] Lindent all ACPI filesLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-03[ACPI] restore /proc/acpi/button/ (ala 2.6.12)Alexey Starikovskiy
Signed-off-by Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by Len Brown <len.brown@intel.com>
2005-07-11[ACPI] Allow simultaneous Fixed Feature and Control Method buttonsAlexey Starikovskiy
delete /proc/acpi/button http://bugzilla.kernel.org/show_bug.cgi?id=1920 Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
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!
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