The owner field provides the link between drivers and modules in sysfs,
but no ACPI driver was setting it.
After setting the owner field, we can see which module provides which
driver and vice versa by looking at /sys/bus/acpi/driver/*/module and
/sys/module/*/drivers/acpi:*.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
The owner field provides the link between drivers and modules in sysfs,
but no ACPI driver was setting it.
After setting the owner field, we can see which module provides which
driver and vice versa by looking at /sys/bus/acpi/driver/*/module and
/sys/module/*/drivers/acpi:*.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
acpi_bus_register_driver() already checks acpi_disabled, so acpi bus
drivers don't need to.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
acpi_bus_register_driver() already checks acpi_disabled, so acpi bus
drivers don't need to.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
The acpi device callbacks add, start, remove, suspend and resume can
never be called with a NULL acpi_device. Each callsite in acpi/scan.c
has to dereference the device in order to get the ops structure, e.g.
struct acpi_device *acpi_dev = to_acpi_device(dev);
struct acpi_driver *acpi_drv = acpi_dev->driver;
if (acpi_drv && acpi_drv->ops.suspend)
return acpi_drv->ops.suspend(acpi_dev, state);
Remove all checks for acpi_dev == NULL within these callbacks.
Also remove the checks for acpi_driver_data(acpi_dev) == NULL. None of
these checks could fail unless the driver does something strange
(which none of them do), the acpi core did something terribly wrong,
or we have a memory corruption issue. If this does happen then it's
best to dereference the pointer and crash noisily.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
The acpi device callbacks add, start, remove, suspend and resume can
never be called with a NULL acpi_device. Each callsite in acpi/scan.c
has to dereference the device in order to get the ops structure, e.g.
struct acpi_device *acpi_dev = to_acpi_device(dev);
struct acpi_driver *acpi_drv = acpi_dev->driver;
if (acpi_drv && acpi_drv->ops.suspend)
return acpi_drv->ops.suspend(acpi_dev, state);
Remove all checks for acpi_dev == NULL within these callbacks.
Also remove the checks for acpi_driver_data(acpi_dev) == NULL. None of
these checks could fail unless the driver does something strange
(which none of them do), the acpi core did something terribly wrong,
or we have a memory corruption issue. If this does happen then it's
best to dereference the pointer and crash noisily.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
Currently, reading from the disp attribute fails with "No such device",
which is misleading. According to CMSG table on acpi4asus project site,
no models have a getter method corresponding to SDSP. Change the file
permission to disallow reads.
If some joker changes the permission to permit reads, then return -EIO
to be consistent with sysfs' behaviour when no show() method is
provided.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
Return temperature in milidegree instead of degree, as sysfs-api requires
the temperature in milidegree.
Signed-off-by: Peter Feuerer <peter@piie.net>
Tested-by: Borislav Petkov <petkovbb@gmail.com>
Cc: Andreas Mohr <andi@lisas.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
There is a problem in the quirk tables used by tpacpi_is_fw_known() and
tpacpi_check_outdated_fw(), which causes outdated BIOSes that are lacking
the EC firmware ID DMI field to never match.
This breaks module loading on, e.g. a T23 with outdated BIOS, and the
module will refuse to load unless the "force_load=1" parameter is given.
Fix the quirk tables so that they can also match the outdated BIOSes,
which in turn will both fix the module loading, and also warn the user
that he is using outdated firmware and should upgrade.
This fixes a serious regression, introduced by commit
e675abafcc, "thinkpad-acpi: be more strict
when detecting a ThinkPad".
http://bugzilla.kernel.org/show_bug.cgi?id=14597
Reported-by: Paul Kimoto <kimoto@lightlink.com>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Paul Kimoto <kimoto@lightlink.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
The returned error should be negative
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Switching the camera takes 500ms, checking if it's on is almost free...
The BIOS remembers the setting through reboots, so there's good chance the
camera is already enabled.
Signed-off-by: Luca Niccoli <lultimouomo@gmail.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
rt2860sta is fine with the patch as is, but iwl3945 isn't
(eeepc_rfkill_set() needs to call eeepc_rfkill_hotplug(true) – which means
that we're back to causing the rt2860sta panic
This reverts commit b56ab33d68.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
This works around what I think is actually a bug in rt2860sta which is
triggered when the hardware "disappears" from beneath the driver, i.e. when
wireless is toggled off via ACPI. It does so by ensuring that the rfkill
soft-block flag is set before the hardware is disabled.
I do not know whether this patch is required if rt2800pci is in use instead
of rt2860sta; at the time of submission of this patch, I've not been able to
test this.
(Ref. http://bugzilla.kernel.org/show_bug.cgi?id=13390)
Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
Currently the annotation for function eeepc_enable_camera() is
__init, and refers to a
function eeepc_hotk_add() which is non-init. Use __devinit for both
functions which is
more appropriate and fixes a section mismatch warning.
We were warned by the following warning:
LD drivers/platform/x86/built-in.o
WARNING: drivers/platform/x86/built-in.o(.text+0x12e1): Section
mismatch in reference from the function eeepc_hotk_add() to the
function .init.text:eeepc_enable_camera()
The function eeepc_hotk_add() references
the function __init eeepc_enable_camera().
This is often because eeepc_hotk_add lacks a __init
annotation or the annotation of eeepc_enable_camera is wrong.
Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
A follow-up 2.6.32-rc1's
1e384cb0f9
"fujitsu-laptop: support led-class as module"
It's a trivial fix for one of the CONFIG_LEDS_CLASS ifdefs
which was somehow missed in the original patch.
Signed-off-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits)
sony-laptop: re-read the rfkill state when resuming from suspend
sony-laptop: check for rfkill hard block at load time
wext: add back wireless/ dir in sysfs for cfg80211 interfaces
wext: Add bound checks for copy_from_user
mac80211: improve/fix mlme messages
cfg80211: always get BSS
iwlwifi: fix 3945 ucode info retrieval after failure
iwlwifi: fix memory leak in command queue handling
iwlwifi: fix debugfs buffer handling
cfg80211: don't set privacy w/o key
cfg80211: wext: don't display BSSID unless associated
net: Add explicit bound checks in net/socket.c
bridge: Fix double-free in br_add_if.
isdn: fix netjet/isdnhdlc build errors
atm: dereference of he_dev->rbps_virt in he_init_group()
ax25: Add missing dev_put in ax25_setsockopt
Revert "sit: stateless autoconf for isatap"
net: fix double skb free in dcbnl
net: fix nlmsg len size for skb when error bit is set.
net: fix vlan_get_size to include vlan_flags size
...
Without this, the hard-blocked state will be reported incorrectly if
the hardware switch is changed while the laptop is suspended.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Tested-by: Norbert Preining <preining@logic.at>
Acked-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
"I recently (on a flight) I found out that when I boot with the hard-switch
activated, so turning off all wireless activity on my laptop, the state
is not correctly announced in /dev/rfkill (reading it with rfkill command,
or my own gnome applet)...
After turning off and on again the hard-switch the events were right."
We can fix this by querying the firmware at load time and calling
rfkill_set_hw_state().
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Tested-by: Norbert Preining <preining@logic.at>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Mattia Dongili <malattia@linux.it>
CC: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This is unnecessary as OSPM is supposed to call the method already when
the device is discovered.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
The SPIC irq is not really shareable, the IO port cannot be cleared and
always returns some data so there is no real way to understand if the irq
is for us or not. Moreover the _PRS acpi method says the irq is not
shareable.
In addition to this, in some cases, an additional write to the IO port has
to be performed in order to properly decode the event received from the
device. This generates another interrupt which may overlap with the
previous one. In the future this is going to be important for properly
decoding events.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
Having separate drivers for SPIC showed to be useless, only type3 has a
slightly different behaviour than the others and there seem to be no real
conflict between them.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
Fix this problem when CONFIG_THINKPAD_ACPI_HOTKEY_POLL is undefined:
CHECK drivers/platform/x86/thinkpad_acpi.c
drivers/platform/x86/thinkpad_acpi.c:1968:21: error: not an lvalue
CC [M] drivers/platform/x86/thinkpad_acpi.o
drivers/platform/x86/thinkpad_acpi.c: In function 'tpacpi_hotkey_driver_mask_set':
drivers/platform/x86/thinkpad_acpi.c:1968: error: lvalue required as left operand of assignment
Reported-by: Noah Dain <noahdain@gmail.com>
Reported-by: Audrius Kazukauskas <audrius@neutrino.lt>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
backlight: new driver for ADP5520/ADP5501 MFD PMICs
backlight: extend event support to also support poll()
backlight/eeepc-laptop: Update the backlight state when we change brightness
backlight/acpi: Update the backlight state when we change brightness
backlight: Allow drivers to update the core, and generate events on changes
backlight: switch to da903x driver to dev_pm_ops
backlight: Add support for the Avionic Design Xanthos backlight device.
backlight: spi driver for LMS283GF05 LCD
backlight: move hp680-bl's probe function to .devinit.text
backlight: Add support for new Apple machines.
backlight: mbp_nvidia_bl: add support for MacBookAir 1,1
backlight: Add WM831x backlight driver
Trivial conflicts due to '#ifdef CONFIG_PM' differences in
drivers/video/backlight/da903x_bl.c
Trigger a status update when the user hits a brightness key, allowing
userspace to present appropriate UI.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Reduce the number of magic numbers in the driver... note that they
were all explained and documented already.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Add an internal API to the driver, to allow subdrivers to request and
receive HKEY 0x1000 events. This API will be used by the backlight
(brightness up/down) and upcoming ALSA mixer (volume up/down/mute)
subdrivers.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
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>
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>
hotkey_exit() is only called if hotkey_init() finished sucessfully, or
by direct calls inside hotkey_init(). The tp_features.hotkey test is
always true, and just adds to the confusion, remove it. Also, avoid
calling hotkey_mask_set() when it won't do anything useful.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
backlight_device_register returns ERR_PTR() in case of problems, and
the current code would leave that ERR_PTR in ibm_backlight_device.
The current code paths won't touch it in that situation, but that could
change. Make sure to set ibm_backlight_device to NULL in the error
path.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Peter Feuerer <peter@piie.net>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
- Apply Borislav Petkov's patch (convert the fancmd[] array to a real
struct thus disambiguating command handling and making code more
readable.)
- Add BIOS product to BIOS table as AOA110 and AOA150 have different
register values
- Add force_product parameter to allow forcing different product
- fix linker warning caused by "acerhdf_drv" not being named
"acerhdf_driver"
Signed-off-by: Peter Feuerer <peter@piie.net>
Cc: Andreas Mohr <andi@lisas.de>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
rfkill_unregister() should always be followed by rfkill_destroy()
In this case, rfkill_destroy was called two times on wifi_rfkill and
never on bluetooth_rfkill.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This adds Topstar Laptop Extras ACPI driver. It enables hotkeys
functionality with Topstar N01 netbook. Besides hotkeys there are
other functions exposed by its ACPI firmware, but for now only
hotkeys reporting on Topstar N01 is supported. Topstar is a chinese
manufacturer, its website can be currently reached at
http://www.topstardigital.cn/
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Reviewed-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
rfkill_unregister() should always be followed by rfkill_destroy()
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
