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* Documentation: fix minor typos/spellingSylvestre Ledru2011-04-041-2/+2
| | | | | | | | | | | Fix some minor typos: * informations => information * there own => their own * these => this Signed-off-by: Sylvestre Ledru <sylvestre.ledru@scilab.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sony-laptop: documentation updatesMattia Dongili2011-03-281-7/+30
| | | | | Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* Move hp_accel to drivers/platform/x86Jean Delvare2011-03-211-0/+146
| | | | | | | | | | | | | The hp_accel driver isn't a hardware monitoring driver, so it doesn't belong to drivers/hwmon. Move it to drivers/platform/x86, assuming HP doesn't ship non-x86 laptops. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Tested-by: Eric Piel <eric.piel@tremplin-utc.net> Tested-by: Takashi Iwai <tiwai@suse.de>
* thinkpad-acpi: untangle ACPI/vendor backlight selectionHenrique de Moraes Holschuh2010-08-161-0/+4
| | | | | | | | | | | | acpi_video_backlight_support() already tells us if ACPI is handling backlight control through the generic ACPI handle. It is better to just trust it. While at it, adjust down a printk priority, and test earlier for brightness_enable=0. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* Merge branch 'for-next' of ↵Linus Torvalds2010-08-041-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (48 commits) Documentation: update broken web addresses. fix comment typo "choosed" -> "chosen" hostap:hostap_hw.c Fix typo in comment Fix spelling contorller -> controller in comments Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault fs/Kconfig: Fix typo Userpace -> Userspace Removing dead MACH_U300_BS26 drivers/infiniband: Remove unnecessary casts of private_data fs/ocfs2: Remove unnecessary casts of private_data libfc: use ARRAY_SIZE scsi: bfa: use ARRAY_SIZE drm: i915: use ARRAY_SIZE drm: drm_edid: use ARRAY_SIZE synclink: use ARRAY_SIZE block: cciss: use ARRAY_SIZE comment typo fixes: charater => character fix comment typos concerning "challenge" arm: plat-spear: fix typo in kerneldoc reiserfs: typo comment fix update email address ...
| * Documentation: update broken web addresses.Justin P. Mattock2010-08-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Below you will find an updated version from the original series bunching all patches into one big patch updating broken web addresses that are located in Documentation/* Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult, the best way to deal with these is to use web.archive.org to locate these addresses that are outdated. Now there are also some addresses pointing to .spec files some are located, but some(after searching on the companies site)where still no where to be found. In this case I just changed the address to the company site this way the users can contact the company and they can locate them for the users. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Cc: Paulo Marques <pmarques@grupopie.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | X86 platform drivers: Remove EC dump from thinkpad_acpiThomas Renninger2010-08-031-60/+11
|/ | | | | | | | | | | | | | | | | There is a general interface for that now (provided by other patches in this patch series): /sys/kernel/debug/ec/*/io Signed-off-by: Thomas Renninger <trenn@suse.de> CC: Alexey Starikovskiy <astarikovskiy@suse.de> CC: Len Brown <lenb@kernel.org> CC: linux-kernel@vger.kernel.org CC: linux-acpi@vger.kernel.org CC: platform-driver-x86@vger.kernel.org CC: Henrique de Moraes Holschuh <hmh@hmh.eng.br> CC: ibm-acpi-devel@lists.sourceforge.net Signed-off-by: Matthew Garrett <mjg@redhat.com>
* Merge branch 'for_linus' of ↵Linus Torvalds2010-05-211-17/+49
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (32 commits) Move N014, N051 and CR620 dmi information to load scm dmi table drivers/platform/x86/eeepc-wmi.c: fix build warning X86 platfrom wmi: Add debug facility to dump WMI data in a readable way X86 platform wmi: Also log GUID string when an event happens and debug is set X86 platform wmi: Introduce debug param to log all WMI events Clean up all objects used by scm model when driver initial fail or exit msi-laptop: fix up some coding style issues found by checkpatch msi-laptop: Add i8042 filter to sync sw state with BIOS when function key pressed msi-laptop: Set rfkill init state when msi-laptop intiial msi-laptop: Add MSI CR620 notebook dmi information to scm models table msi-laptop: Add N014 N051 dmi information to scm models table drivers/platform/x86: Use kmemdup drivers/platform/x86: Use kzalloc drivers/platform/x86: Clarify the MRST IPC driver description slightly eeepc-wmi: depends on BACKLIGHT_CLASS_DEVICE IPC driver for Intel Mobile Internet Device (MID) platforms classmate-laptop: Add RFKILL support. thinkpad-acpi: document backlight level writeback at driver init thinkpad-acpi: clean up ACPI handles handling thinkpad-acpi: don't depend on led_path for led firmware type (v2) ...
| * thinkpad-acpi: update HKEY and hotkey subdriver documentation (v2)Henrique de Moraes Holschuh2010-05-161-17/+49
| | | | | | | | | | | | | | | | | | | | Update the hotkey driver documentation to match the behaviour of the fixed NVRAM polling code. This also documents some HKEY events such as the alarms, which is very important information. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
* | Documentation/: it's -> its where appropriateFrancis Galiegue2010-04-231-1/+1
|/ | | | | | | | Fix obvious cases of "it's" being used when "its" was meant. Signed-off-by: Francis Galiegue <fgaliegue@gmail.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-03-121-0/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits) doc: fix typo in comment explaining rb_tree usage Remove fs/ntfs/ChangeLog doc: fix console doc typo doc: cpuset: Update the cpuset flag file Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed Remove drivers/parport/ChangeLog Remove drivers/char/ChangeLog doc: typo - Table 1-2 should refer to "status", not "statm" tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h devres/irq: Fix devm_irq_match comment Remove reference to kthread_create_on_cpu tree-wide: Assorted spelling fixes tree-wide: fix 'lenght' typo in comments and code drm/kms: fix spelling in error message doc: capitalization and other minor fixes in pnp doc devres: typo fix s/dev/devm/ Remove redundant trailing semicolons from macros fix typo "definetly" -> "definitely" in comment tree-wide: s/widht/width/g typo in comments ... Fix trivial conflict in Documentation/laptops/00-INDEX
| * Merge branch 'for-next' into for-linusJiri Kosina2010-03-081-0/+4
| |\ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
| | * doc: update 00-INDEX for Documentation/laptops/Thadeu Lima de Souza Cascardo2010-02-051-0/+4
| | | | | | | | | | | | | | | Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Documentation/laptop/: split txt and source filesRandy Dunlap2010-03-124-169/+177
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Documentation/laptops/laptop-mode.txt: Expose example and tool source files in the Documentation/ directory in their own files instead of being buried (almost hidden) in readme/txt files. This should help to prevent bitrot. This will make them more visible/usable to users who may need to use them, to developers who may need to test with them, and to anyone who would fix/update them if they were more visible. Also, if any of these possibly should not be in the kernel tree at all, it will be clearer that they are here and we can discuss if they should be removed. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | thinkpad-acpi: lock down video output state accessHenrique de Moraes Holschuh2010-02-251-0/+4
|/ | | | | | | | | | | | | | | | | | Given the right combination of ThinkPad and X.org, just reading the video output control state is enough to hard-crash X.org. Until the day I somehow find out a model or BIOS cut date to not provide this feature to ThinkPads that can do video switching through X RandR, change permissions so that only processes with CAP_SYS_ADMIN can access any sort of video output control state. This bug could be considered a local DoS I suppose, as it allows any non-privledged local user to cause some versions of X.org to hard-crash some ThinkPads. Reported-by: Jidanni <jidanni@jidanni.org> Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: stable@kernel.org
* thinkpad-acpi: update volume subdriver documentationHenrique de Moraes Holschuh2009-12-261-8/+50
| | | | | Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* thinkpad-acpi: bump version to 0.24Henrique de Moraes Holschuh2009-12-161-2/+2
| | | | | Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* thinkpad-acpi: basic ALSA mixer support (v2)Henrique de Moraes Holschuh2009-12-151-3/+4
| | | | | | | | | | | | | | Add the basic ALSA mixer functionality. The mixer is event-driven, and will work fine on IBM ThinkPads. I expect Lenovo ThinkPads will cause some trouble with the event interface. Heavily based on work by Lorne Applebaum <lorne.applebaum@gmail.com> and ideas from Matthew Garrett <mjg@redhat.com>. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Lorne Applebaum <lorne.applebaum@gmail.com> Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* thinkpad-acpi: disable volume controlHenrique de Moraes Holschuh2009-12-151-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Disable volume control by default. It can be enabled at module load time by a module parameter (volume_control=1). The audio control mixer that thinkpad-acpi interacts with is fully functional without any drivers, and operated by hotkeys. The idea behind the console audio control is that the human operator is the only one that can interact with it. The ThinkVantage suite in Windows does not allow any software-based overrides, and only does OSD (on-screen-display) functions. The Linux driver will, with the addition of the ALSA interface, try to follow and enforce the ThinkVantage UI design: The user is supposed to use the keyboard hotkeys to interact with the console audio control. The kernel and the desktop environment is supposed to cooperate to provide proper user feedback through on-screen-display functions. Distros are urged to not to enable volume control by default. Enabling this must be a local admin's decision. This is the reason why there is no Kconfig option. Keep in mind that all ThinkPads have a normal, main mixer (AC97 or HDA) for regular software-based audio control. We are not talking about that mixer here. Advanced users are, of course, free to enable volume control and do as they please. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Lorne Applebaum <lorne.applebaum@gmail.com> Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* thinkpad-acpi: support MUTE-only ThinkPadsHenrique de Moraes Holschuh2009-12-151-2/+17
| | | | | | | | | | | | | | | | | | | | Lenovo removed the extra mixer since the T61 and thereabouts. Newer Lenovo models only have the mute gate function, and leave the volume control to the HDA mixer. Until a way to automatically query the firmware about its audio control capabilities is discovered (there might not be any), use a white/black list. We will likely need to ask T60 (old and new model) and Z60/Z61 users whether they have volume control to populate the black/white list. Meanwhile, provide a volume_capabilities parameter that can be used to override the defaults. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Lorne Applebaum <lorne.applebaum@gmail.com> Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* thinkpad-acpi: volume subdriver rewriteHenrique de Moraes Holschuh2009-12-151-5/+17
| | | | | | | | | | | | | | | | | | | I don't trust the coupled EC writes and SMI calls the current volume control code does very much, although it is exactly what the IBM DSDTs seem to do (they never do more than a single step though). Change the driver to stop issuing SMIs, and just drive the EC directly to the desired level (DSDTs seem to confirm this will work even on very old models like the 570 and 600e/x). We checkpoint directly to NVRAM (this can be turned off) at suspend/shutdown/driver unload, which from what I can see in tbp, should also work on every ThinkPad. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Lorne Applebaum <lorne.applebaum@gmail.com> Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* thinkpad-acpi: issue backlight class eventsHenrique de Moraes Holschuh2009-12-091-39/+12
| | | | | | | | | | | | | Take advantage of the new events capabilities of the backlight class to notify userspace of backlight changes. This depends on "backlight: Allow drivers to update the core, and generate events on changes", by Matthew Garrett. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Matthew Garrett <mjg@redhat.com> Cc: Richard Purdie <rpurdie@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'thinkpad-2.6.32-part2' into releaseLen Brown2009-09-261-21/+27
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| * thinkpad-acpi: hotkey event driver updateHenrique de Moraes Holschuh2009-09-201-20/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the HKEY event driver to: 1. Handle better the second-gen firmware, which has no HKEY mask support but does report FN+F3, FN+F4 and FN+F12 without the need for NVRAM polling. a) always make the mask-related attributes available in sysfs; b) use DMI quirks to detect the second-gen firmware; c) properly report that FN+F3, FN+F4 and FN+F12 are enabled, and available even on mask-less second-gen firmware; 2. Decouple the issuing of hotkey events towards userspace from their reception from the firmware. ALSA mixer and brightness event reporting support will need this feature. 3. Clean up the mess in the hotkey driver a great deal. It is still very convoluted, and wants a full refactoring into a proper event API interface, but that is not going to happen today. 4. Fully reset firmware interface on resume (restore hotkey mask and status). 5. Stop losing polled events for no good reason when changing the mask and poll frequencies. We will still lose them when the hotkey_source_mask is changed, as well as any that happened between driver suspend and driver resume. The hotkey subdriver now has the notion of user-space-visible hotkey event mask, as well as of the set of "hotkey" events the driver needs (because brightness/volume change reports are not just keypress reports in most ThinkPad models). With this rewrite, the ABI level is bumped to 0x020500 should userspace need to know it is dealing with the updated hotkey subdriver. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| * thinkpad-acpi: drop HKEY event 0x5010Henrique de Moraes Holschuh2009-09-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | HKEY event 0x5010 is useless to us: old ThinkPads don't issue it. Newer ThinkPads won't issue it anymore. And all ThinkPads issue 0x1010 and 0x1011 events. Just silently drop it instead of sending it to userspace. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'asus' into releaseLen Brown2009-09-191-0/+258
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| * asus-laptop: document the moduleCorentin Chary2009-08-281-0/+258
| | | | | | | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* | thinkpad-acpi: Fix procfs hotkey reset commandHenrique de Moraes Holschuh2009-09-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | echo "reset" > /proc/acpi/ibm/hotkey should do something non-useless, so instead of setting it to Fn+F2, Fn+F3, Fn+F5, set it to hotkey_recommended_mask. It is not like it will survive for much longer, anyway. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* | thinkpad-acpi: deprecate hotkey_bios_maskHenrique de Moraes Holschuh2009-09-191-1/+5
|/ | | | | | | | | | | | | | | | Some analysis of the ACPI DSDTs shows that the HKEY pre-enabled mask is always 0x80c (FN+F3,FN+F4 and FN+F12), which are the hotkeys that the second gen of HKEY firmware supported (the first gen didn't report any hotkeys, the second reported these tree hotkeys but had no mask support, and the third added mask support). So, this is probably some sort of backwards compatibility with older versions of the IBM ThinkVantage suite. We have no use for that, and I know of exactly ZERO users of that attribute, anyway. Start the process of getting rid of it. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* thinkpad-acpi: remove dock and bay subdriversHenrique de Moraes Holschuh2009-08-011-127/+0
| | | | | | | | | | | | | | | | | | | | | | | | The standard ACPI dock driver can handle the hotplug bays and docks of the ThinkPads just fine (including batteries) as of 2.6.27, and the code in thinkpad-acpi for the dock and bay subdrivers is currently broken anyway... Userspace needs some love to support the two-stage ejection nicely, but it is simple enough to do through udev rules (you don't even need HAL) so this wouldn't justify fixing the dock and bay subdrivers, either. That leaves warm-swap bays (_EJ3) support for thinkpad-acpi, as well as support for the weird dock of the model 570, but since such support has never left the "experimental" stage, it is also not a strong enough reason to find a way to fix this code. Users of ThinkPads with warm-swap bays are urged to request that _EJ3 support be added to the regular ACPI dock driver, if such feature is indeed useful for them. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
*-. Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', ↵Len Brown2009-06-241-10/+37
|\ \ | | | | | | | | | 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release
| | * thinkpad-acpi: support the second fan on the X61Henrique de Moraes Holschuh2009-06-181-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support reading the tachometer of the auxiliary fan of a X60/X61. It was found out by sheer luck, that bit 0 of EC register 0x31 (formely HBRV) selects which fan is active for tachometer readings through EC 0x84/0x085: 0 for fan1, 1 for fan2. Many thanks to Christoph Kl??nter, to Whoopie, and to weasel, who helped confirm that behaviour. Fan control through EC HFSP applies to both fans equally, regardless of the state of bit 0 of EC 0x31. That matches the way the DSDT uses HFSP. In order to better support the secondary fan, export a second tachometer over hwmon, and add defensive measures to make sure we are reading the correct tachometer. Support for the second fan is whitelist-based, as I have not found anything obvious to look for in the DSDT to detect the presence of the second fan. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| | * thinkpad-acpi: forbid the use of HBRV on Lenovo ThinkPadsHenrique de Moraes Holschuh2009-06-181-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Forcing thinkpad-acpi to do EC-based brightness control (HBRV) on a X61 has very... interesting effects, instead of doing nothing (since it doesn't have EC-based backlight control), it causes "weirdness" in the fan tachometer readings, for example. This means the EC register that used to be HBRV has been reused by Lenovo for something else, but they didn't remove it from the DSDT. Make sure the documentation reflects this data, and forbid the user from forcing the driver to access HBRV on Lenovo ThinkPads. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| | * thinkpad-acpi: enhance led supportHenrique de Moraes Holschuh2009-06-171-3/+20
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Add support for extra LEDs on recent ThinkPads, and avoid registering with the led class the LEDs which are not available for a given ThinkPad model. All non-restricted LEDs are always available through the procfs interface, as the firmware doesn't care if an attempt is made to access an invalid LED. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* | trivial: Miscellaneous documentation typo fixesMatt LaPlante2009-06-123-3/+3
|/ | | | | | | Fix various typos in documentation txts. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* thinkpad-acpi: bump up version to 0.23Henrique de Moraes Holschuh2009-04-181-2/+2
| | | | | | | | | | | | | | | | | | Plenty of high-profile changes, so it deserves a new version number. Features added since 0.22: * Restrict unsafe LEDs * New race-less brightness control strategy for IBM ThinkPads * Disclose TGID of driver access from userspace (debug) * Warn when deprecated functions are used Other changes: * Better debug messages in some subdrivers * Removed "hotkey disable" support, since it breaks the driver * Dropped "ibm-acpi" alias Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'thinkpad-acpi' into releaseLen Brown2009-04-051-47/+97
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| * thinkpad-acpi: rework brightness supportHenrique de Moraes Holschuh2009-04-041-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor and redesign the brightness control backend... In order to fix bugzilla #11750... Add a new brightness control mode: support direct NVRAM checkpointing of the backlight level (i.e. store directly to NVRAM without the need for UCMS calls), and use that together with the EC-based control. Disallow UCMS+EC, thus avoiding races with the SMM firmware. Switch the models that define HBRV (EC Brightness Value) in the DSDT to the new mode. These are: T40-T43, R50-R52, R50e, R51e, X31-X41. Change the default for all other IBM ThinkPads to UCMS-only. The Lenovo models already default to UCMS-only. Reported-by: Alexey Fisher <bug-track@fisher-privat.net> Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| * thinkpad-acpi: enhanced debugging messages for the fan subdriverHenrique de Moraes Holschuh2009-04-041-0/+1
| | | | | | | | | | | | | | Enhance debugging messages for the fan subdriver. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| * thinkpad-acpi: enhanced debugging messages for the hotkey subdriverHenrique de Moraes Holschuh2009-04-041-0/+1
| | | | | | | | | | | | | | Enhance debugging messages for the hotkey subdriver. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| * thinkpad-acpi: enhanced debugging messages for rfkill subdriversHenrique de Moraes Holschuh2009-04-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Enhance debugging messages for all rfkill subdrivers in thinkpad-acpi. Also, log a warning if the deprecated sysfs attributes are in use. These attributes are going to be removed sometime in 2010. There is an user-visible side-effect: we now coalesce attempts to enable/disable bluetooth or WWAN in the procfs interface, instead of hammering the firmware with multiple requests. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| * thinkpad-acpi: restrict access to some firmware LEDsHenrique de Moraes Holschuh2009-04-041-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of the ThinkPad LEDs indicate critical conditions that can cause data loss or cause hardware damage when ignored (e.g. force-ejecting a powered up bay; ignoring a failing battery, or empty battery; force- undocking with the dock buses still active, etc). On almost all ThinkPads, LED access is write-only, and the firmware usually does fire-and-forget signaling on them, so you effectively lose whatever message the firmware was trying to convey to the user when you override the LED state, without any chance to restore it. Restrict access to all LEDs that can convey important alarms, or that could mislead the user into incorrectly operating the hardware. This will make the Lenovo engineers less unhappy about the whole issue. Allow users that really want it to still control all LEDs, it is the unaware user that we have to worry about. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| * thinkpad-acpi: remove HKEY disable functionalityHenrique de Moraes Holschuh2009-04-041-20/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The HKEY disable functionality basically cripples the entire event model of the ThinkPad firmware and of the thinkpad-acpi driver. Remove this functionality from the driver. HKEY must be enabled at all times while thinkpad-acpi is loaded, and disabled otherwise. For sysfs, according to the sysfs ABI and the thinkpad-acpi sysfs rules of engagement, we will just remove the attributes. This will be done in two stages: disable their function now, after two kernel releases, remove the attributes. For procfs, we call WARN(). If nothing triggers it, I will simply remove the enable/disable commands entirely in the future along with the sysfs attributes. I don't expect much, if any fallout from this. There really isn't any reason to mess with hotkey_enable or with the enable/disable commands to /proc/acpi/ibm/hotkey, and this has been true for years... Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| * thinkpad-acpi: add new debug helpers and warn of deprecated attsHenrique de Moraes Holschuh2009-04-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a debug helper that discloses the TGID of the userspace task attempting to access the driver. This is highly useful when dealing with bug reports, since often the user has no idea that some userspace application is accessing thinkpad-acpi... Also add a helper to log warnings about sysfs attributes that are deprecated. Use the new helpers to issue deprecation warnings for bluetooth_enable and wwan_enabled, that have been deprecated for a while, now. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
| * thinkpad-acpi: documentation cleanupHenrique de Moraes Holschuh2009-04-041-24/+52
| | | | | | | | | | | | | | Some cleanups to the documentation of the driver. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* | acer-wmi: Update copyright notice & documentationCarlos Corbacho2009-04-041-3/+7
|/ | | | | | | | Explicitly note in the documentation that the Acer Aspire One is not supported. Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: thinkpad-acpi: bump up version to 0.22Henrique de Moraes Holschuh2009-01-151-3/+3
| | | | | | | | | | | It is about time to bump up the version. Features added since 0.21: fan suspend/resume support, preserve radio state across power off (for some radio types), built-in UWB radio rfkill support and thermal alarm events support. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: thinkpad-acpi: add UWB radio supportHenrique de Moraes Holschuh2009-01-151-0/+18
| | | | | | | | | | | Add rfkill support for USB UWB radio devices on very recent ThinkPad laptop models. The new subdriver is moslty a trimmed down copy of the wwan subdriver. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: thinkpad-acpi: update documents for the new locationHenrique de Moraes Holschuh2009-01-151-1/+2
| | | | | | | | Update documentation to reflect the new location of the thinkpad-acpi driver. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* trivial: fix an -> a typos in documentation and commentsFrederik Schwarzer2009-01-061-1/+1
| | | | | | | | | | | It is always "an" if there is a vowel _spoken_ (not written). So it is: "an hour" (spoken vowel) but "a uniform" (spoken 'j') Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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