Until now module dell-laptop registered rfkill device which used i8042
filter function for receiving HW switch rfkill events (handling special
keycode).
But for some dell laptops there is native ACPI driver dell-rbtn which can
receive rfkill events (without i8042 hooks).
So this patch will combine best from both sides. It will use native ACPI
driver dell-rbtn for receiving events and dell-laptop SMBIOS interface for
enabling or disabling radio devices. If ACPI driver or device will not be
available fallback to i8042 filter function will be used.
Patch also changes module_init() to late_initcall() to ensure that init
function will be called after initializing dell-rbtn.c driver.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch exports notifier functions so other modules can receive HW
switch events. By default when some module register notifier, dell-rbtn
driver automatically remove rfkill interfaces from system (it is expected
that other module will use events for other rfkill interface). This
behaviour can be changed with new module parameter "auto_remove_rfkill".
This patch is designed for dell-laptop module for receiving those events.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
[dvhart@linux.intel.com: Cleanup MODULE_PARM_DESC formatting and grammar]
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This is an ACPI driver for Dell laptops which receive HW slider radio
switch or hotkey toggle wifi button events. It exports rfkill device
dell-rbtn (which provide correct hard rfkill state) or hotkey input device.
Alex Hung is author of original hotkey input device code.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Cc: Alex Hung <alex.hung@canonical.com>
[fengguang.wu@intel.com: rbtn_ops can be static]
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
[dvhart@linux.intel.com: Correct multi-line comment formatting]
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
acpi_video_unregister() not only unregisters the acpi-video backlight
interface but also unregisters the acpi video bus event listener, causing
e.g. brightness hotkey presses to no longer generate keypress events.
The unregistering of the acpi video bus event listener usually is
undesirable, which by itself is a good reason to switch to
acpi_video_unregister_backlight().
Another problem with using acpi_video_unregister() rather then using
acpi_video_unregister_backlight() is that on systems with an intel video
opregion (most systems) and a broken_acpi_video quirk, whether or not
the acpi video bus event listener actually gets unregistered depends on
module load ordering:
Scenario a:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) intel.ko gets loaded, calls acpi_video_register() which registers both
the listener and the acpi backlight interface
3) samsung-laptop.ko gets loaded, calls acpi_video_unregister() causing
both the listener and the acpi backlight interface to unregister
Scenario b:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) samsung-laptop.ko gets loaded, calls acpi_video_dmi_promote_vendor(),
calls acpi_video_unregister(), which is a nop since acpi_video_register
has not yet been called
2) intel.ko gets loaded, calls acpi_video_register() which registers
the listener, but does not register the acpi backlight interface due to
the call to the preciding call to acpi_video_dmi_promote_vendor()
*) acpi/video.ko always loads first as both other modules depend on it.
So we end up with or without an acpi video bus event listener depending
on module load ordering, not good.
Switching to using acpi_video_unregister_backlight() means that independ
of ordering we will always have an acpi video bus event listener fixing
this.
Note that this commit means that systems without an intel video opregion,
and systems which were hitting scenario a wrt module load ordering, are
now getting an acpi video bus event listener while before they were not!
On some systems this may cause the brightness hotkeys to start generating
keypresses while before they were not (good), while on other systems this
may cause the brightness hotkeys to generate multiple keypress events for
a single press (not so good). Since on most systems the acpi video bus is
the canonical source for brightness events I believe that the latter case
will needs to be handled on a case by case basis by filtering out the
duplicate keypresses at the other source for them.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Corentin Chary <corentin.chary@gmail.com)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
acpi_video_unregister() not only unregisters the acpi-video backlight
interface but also unregisters the acpi video bus event listener, causing
e.g. brightness hotkey presses to no longer generate keypress events.
The unregistering of the acpi video bus event listener usually is
undesirable, which by itself is a good reason to switch to
acpi_video_unregister_backlight().
Another problem with using acpi_video_unregister() rather then using
acpi_video_unregister_backlight() is that on systems with an intel video
opregion (most systems) and a wmi_backlight_power quirk, whether or not
the acpi video bus event listener actually gets unregistered depends on
module load ordering:
Scenario a:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) intel.ko gets loaded, calls acpi_video_register() which registers both
the listener and the acpi backlight interface
3) asus-wmi.ko gets loaded, calls acpi_video_unregister() causing both
the listener and the acpi backlight interface to unregister
Scenario b:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) asus-wmi.ko gets loaded, calls acpi_video_dmi_promote_vendor(),
calls acpi_video_unregister(), which is a nop since acpi_video_register
has not yet been called
2) intel.ko gets loaded, calls acpi_video_register() which registers
the listener, but does not register the acpi backlight interface due to
the call to the preciding call to acpi_video_dmi_promote_vendor()
*) acpi/video.ko always loads first as both other modules depend on it.
So we end up with or without an acpi video bus event listener depending
on module load ordering, not good.
Switching to using acpi_video_unregister_backlight() means that independ
of ordering we will always have an acpi video bus event listener fixing
this.
Note that this commit means that systems without an intel video opregion,
and systems which were hitting scenario a wrt module load ordering, are
now getting an acpi video bus event listener while before they were not!
On some systems this may cause the brightness hotkeys to start generating
keypresses while before they were not (good), while on other systems this
may cause the brightness hotkeys to generate multiple keypress events for
a single press (not so good). Since on most systems the acpi video bus is
the canonical source for brightness events I believe that the latter case
will needs to be handled on a case by case basis by filtering out the
duplicate keypresses at the other source for them.
Cc: acpi4asus-user@lists.sourceforge.net
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Corentin Chary <corentin.chary@gmail.com)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
acpi_video_unregister() not only unregisters the acpi-video backlight
interface but also unregisters the acpi video bus event listener, causing
e.g. brightness hotkey presses to no longer generate keypress events.
The unregistering of the acpi video bus event listener usually is
undesirable, which by itself is a good reason to switch to
acpi_video_unregister_backlight().
Another problem with using acpi_video_unregister() rather then using
acpi_video_unregister_backlight() is that on systems with an intel video
opregion (most systems) whether or not the acpi video bus event listener
actually gets unregistered depends on module load ordering:
Scenario a:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) intel.ko gets loaded, calls acpi_video_register() which registers both
the listener and the acpi backlight interface
3) apple-gmux.ko gets loaded, calls acpi_video_unregister() causing both
the listener and the acpi backlight interface to unregister
Scenario b:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) apple-gmux.ko gets loaded, calls acpi_video_dmi_promote_vendor(),
calls acpi_video_unregister(), which is a nop since acpi_video_register
has not yet been called
2) intel.ko gets loaded, calls acpi_video_register() which registers
the listener, but does not register the acpi backlight interface due to
the call to the preciding call to acpi_video_dmi_promote_vendor()
*) acpi/video.ko always loads first as both other modules depend on it.
So we end up with or without an acpi video bus event listener depending
on module load ordering, not good.
Switching to using acpi_video_unregister_backlight() means that independ
of ordering we will always have an acpi video bus event listener fixing
this.
Note that this commit means that systems without an intel video opregion,
and systems which were hitting scenario a wrt module load ordering, are
now getting an acpi video bus event listener while before they were not!
On some systems this may cause the brightness hotkeys to start generating
keypresses while before they were not (good), while on other systems this
may cause the brightness hotkeys to generate multiple keypress events for
a single press (not so good). Since on most systems the acpi video bus is
the canonical source for brightness events I believe that the latter case
will needs to be handled on a case by case basis by filtering out the
duplicate keypresses at the other source for them.
Cc: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
pvpanic was not properly detected when _STA was missing.
ACPI 6.0 April 2015, 6.3.7 _STA (Status)
If a device object (including the processor object) does not have an
_STA object, then OSPM assumes that all of the above bits are set
(i.e., the device is present, enabled, shown in the UI, and
functioning).
Not adhering to the specification made pvpanic dormant under QEMU 2.3.
The original patch used acpi_bus_get_status_handle, which was not
being exported, so module build blew up; switch to acpi_bus_get_status
and use the status it populates.
Populated status is a bitfield so we can make the code self-documenting.
We do not check 'present' because 'enabled' has to be false in that case
by specification. Older QEMUs set 0xff to status and newer ones do 0xb.
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
[dvhart@linux.intel.com: Merge acpi_bug_get_status fix to avoid bisect breakage]
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
As the first argument of gf_write64() was of type unsigned long, and as
some calls to gf_write64() were casting the first argument from void *
to u64 the compiler and/or sparse were printing warnings for casts of
wrong sizes when compiling for i386.
This patch changes the type of the first argument of gf_write64() to
const void *, and update calls to the function. This change fixed the
warnings and allowed to remove casts from 3 calls to gf_write64().
In addition gf_write64() was renamed to gf_write_ptr() as the name was
misleading because it only writes 32 bits on 32 bit systems.
gf_write_dma_addr() was added to handle dma_addr_t values which is
used at drivers/staging/goldfish/goldfish_audio.c.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The conversion to DEVICE_ATTR_* macros failed to fixup a few cases where
the old attribute names didn't match the show/store function names.
Instead of renaming the functions, the attributes were renamed. This
caused an unintentional API change. The hwmon required 'name' attribute
were among the renamed attribute, causing libsensors to fail to detect
the hwmon device at all.
Fix by using the DEVICE_ATTR macro for these attributes, allowing the
show/store functions to keep their system specific prefixes.
Fixes: b4dd04ac6e ("thinkpad_acpi: use DEVICE_ATTR_* macros")
Cc: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch is partially based on Felipe Contrera's earlier patch, that
was discussed here: https://lkml.org/lkml/2013/10/8/800
Some problems of that patch are solved, now:
1) The main obstacle for the earlier patch seemed to be the use of
virt_to_phys, which is accepted, now
2) random memory corruption occurred on my notebook, thus DMA-able memory
is allocated now, which solves this problem
3) hwmon interface is used instead of the thermal interface, as a
hwmon device is already set up by this driver and seemed more
appropriate than the thermal interface
4) Calling the ACPI-functions was modularized thus it's possible to call
some multifunctions easily, now (by using
asus_wmi_evaluate_method_agfn).
Unfortunately the WMI doesn't support controlling both fans on
a dual-fan notebook because of an restriction in the acpi-method
"SFNS", that is callable through the wmi. If "SFNV" would be called
directly even dual fan configurations could be controlled, but not by using
wmi.
Speed readings only work on auto-mode, thus "-1" will be reported in
manual mode.
Additionally the speed readings are reported as hundreds of RPM thus
they are not too precise.
This patch is tested only on one notebook (N551JK) but a similar module,
that contained some code to try to control the second fan also, was
reported to work on an UX32VD, at least for the first fan.
As Felipe already mentioned the low-level functions are described here:
http://forum.notebookreview.com/threads/fan-control-on-asus-prime-ux31-ux31a-ux32a-ux32vd.705656/
Signed-off-by: Kast Bernd <kastbernd@gmx.de>
Acked-by: Corentin Chary <corentin.chary@gmail.com>
Cc: Corentin Chary <corentin.chary@gmail.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch makes use of DEVICE_ATTR_{RW, WO} macros, simplifying
device attributes creation.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch simply replaces the use of sscanf with kstrtoint returning
the error code in case that something went bad.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch simply bumps the driver version to 0.22, as significant
changes were made to the driver, such as cleanups, updated events,
keymap handling, fixes and the bluetooth rfkill code removal.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch removes the check for TOS_FAILURE whenever we are using
the tci_raw function call, as that code is only returned by the
{hci, sci}_{read, write} functions and never by the tci_raw, and
thus making that check irrelevant.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch simply does some misc cleanup to comments, mainly
capitalizes some left over comments from a previous clean up and
adds some comments at the beginning of some feature function calls,
as well as some misc changes to some comments.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch simply renames the hci_{read, write}1 functions to
hci_{read, write}.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch removes the hci_{read, write}2 functions from the driver,
and the toshiba_hotkey_event_type_get function was adapted to use the
tci_raw function.
The hci_write2 function was only used by the bluetooth rfkill code,
but since its removal, it was causing build warnings, and the
hci_read2 function was only used by the toshiba_hotkey_event_type_get
function.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
The function toshiba_bluetooth_status is currently printing the
status of the device whenever it is queried, but since the
introduction of the rfkill poll code, this value will get printed
everytime the poll occurs.
This patch removes the status message from the *_status function, and
adds a debug message to the *_sync_status function printing the
bluetooth device raw status, killswitch, plug and power states of the
device as well.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This patch adapts toshiba_bluetooth_enable, toshiba_bt_rfkill_notify
and toshiba_bt_resume functions to rfkill.
The *_enable function was cleaned from code that the rfkill code now
provides, and the other two functions were modified to update the rfkill
switch status, as they were only calling toshiba_bluetooth_enable.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
