In current implementation, store_ledd() does not return error if
write_acpi_int fail. This patch fixes it by return -ENODEV if
write_acpi_int fail.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
According to the comments of write_acpi_int_ret(), write_acpi_int_ret()
should return 0 if write is successful, -1 else. Thus if handle is NULL,
the write does not happen, it should return -1.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
rfkill uses a const struct rfkill_ops pointer.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
The following symbols are needlessly defined global:
logolamp_led
kblamps_led
This patch makes the symbols static.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
cmpc_accel_sensitivity_attr is needlessly defined global.
This patch makes the symbol static.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Cc: Daniel Oliveira Nascimento <don@syst.com.br>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
The following symbols are needlessly defined global:
thz_dev
cl_dev
acerhdf_dev
acerhdf_dev_ops
acerhdf_cooling_ops
This patch makes the symbols static.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Borislav Petkov <bp@alien8.de>
Acked-by: Peter Feuerer <peter@piie.net>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
In the case of no match ( hotk->model == END_MODEL ), the only posible
case to return 0 is to have a Samsung P30 detected. This patch improves
readability by moving related code after if/else clause to be inside if
clause.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Karol Kozimor <sziwan@users.sourceforge.net>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
In the case of no match ( hotk->model == END_MODEL ), model sholud be
kfreed before return AE_OK.
This patch includes below fixes:
1. adds a missing kfree(model) before return AE_OK.
2. asus_hotk_get_info should return int, thus return 0 instead of AE_OK.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Karol Kozimor <sziwan@users.sourceforge.net>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
dmi_check_system() walks the table running matching functions until
someone returns non zero or we hit the end.
This patch makes dmi_check_cb to return 1 so dmi_check_system() return
immediately when a match is found.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Cc: Matthew Garrett <mjg@redhat.com>a
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
The driver now supports the Compal JHL90 (which I use) and it has some
added features. The biggest novelties are a battery interface
(power_supply) and a temperature and fan control interface (hmwon). It
also adds a power-off feature to the backlight subsystem and it exports a
few files that can enable/disable wake_on_XXX events.
Much of the original code of the old features is still there, but I've
changed some names to keep the naming more coherent with the added
functionalities. (Sorry for the huge patch)
Some technical stuff about the new driver:
First of all, I'm not sure if the extra features also work on the other
Compal boards. Currently they only get enabled if the DMI data indicates
you are on a JHL90 board.
Secondly, I've noticed a quirk in my fan controller. I have to re-send
the wanted pwm-level to the controller every so often. If I don't do
this, the fanspeed will slowly rise until after a couple of minutes it's
at full speed. (Note that every normal userland application will probably
update the pwm-level every so often anyway, based on temperature readings,
so this might not be an issue in practice) If this turns out to be a
problem with all the controllers, maybe we should implement a kernel timer
and have the driver re-send the pwm level every XX seconds to make this
transparent to userspace? (However, I couldn't immediately find a way to
do this cleanly.)
Additional information can be found in the source comments.
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: add missing semicolon]
Signed-off-by: Roald Frederickx <roald.frederickx@gmail.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
compal-laptop uses hwmon interfaces, so it should depend on HWMON.
compal-laptop.c:(.devinit.text+0x4071f): undefined reference to `hwmon_device_register'
compal-laptop.c:(.devexit.text+0x6ec0): undefined reference to `hwmon_device_unregister'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Roald Frederickx <roald.frederickx@gmail.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
input_free_device() should only be used if input_register_device() was not
called yet or if it failed. This patch removes unnecessary
input_free_device calls.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Matthew Garrett <mjg@redhat.com>a
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Peter Feuerer <peter@piie.net>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Len Brown <lenb@kernel.org>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Driver didn't verify the pointers in which it got product information back
from DMI; on QEMU one of the pointers came back null, which made the
driver crash and subsequently caused a kernel panic.
Signed-off-by: Rahul Chaturvedi <rkc@chromium.org>
Signed-off-by: Peter Feuerer <peter@piie.net>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Len Brown <lenb@kernel.org>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Remove "chk_off" as it was only needed for T31 netbooks. But those
netbooks can also be handled just with "cmd_off" register (0x9e) for
reading the state back.
Signed-off-by: Peter Feuerer <peter@piie.net>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Len Brown <lenb@kernel.org>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Add new BIOS versions for Acer 1410 and 1810xx and Packard Bell netbooks.
Fixed registers of Acer AOA150 BIOS version v0.3114: Old registers caused
Fan to spin up at every temperature check.
Signed-off-by: Peter Feuerer <peter@piie.net>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Thomas Bächler reports that his machine generates two keycodes for zooming
in and out. Add these to the default keymap.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Thomas Bächler <thomas@archlinux.org>
platform_device_unregister calls platform_device_del and platform_device_put,
thus this change is logically equivalent to original code.
I made this change because the documents in platform.c shows that:
platform_device_del and platform_device_put must _only_ be externally called
in error cases. All other usage is a bug.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
If dell_new_hk_type is true, dell_legacy_wmi_keymap will point to a memory
allocated in setup_new_hk_map().
In this case, the memory is not freed in current implementation.
This patch fixes the leak by kfree(dell_wmi_keymap) if dell_new_hk_type is true.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
dmi_check_system() walks the table running matching functions until someone
returns non zero or we hit the end.
This patch makes dmi_matched to return 1 so dmi_check_system() return
immediately when a match is found.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
The interface file is not writable, thus set permissions to S_IRUGO.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
The callers of write_acpi_int_ret() pass ACPI_ALLOCATE_BUFFER,
the caller must kfree the returned buffer if AE_OK is returned.
This patch adds a missing kfree(buffer.pointer) before return -ENOMEM
if kstrdup fail.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
When acpi_evaluate_object() is passed ACPI_ALLOCATE_BUFFER,
the caller must kfree the returned buffer if AE_OK is returned.
The callers of wmi_get_event_data() pass ACPI_ALLOCATE_BUFFER,
and thus must check its return value before accessing
or kfree() on the buffer.
This patch adds return value checking for wmi_get_event_data()
and adds a missing kfree(obj) in the end of wmi_notify_debug
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Fixes pressing the eject key on Dell Studio 1555 does not work and produces
message :
dell-wmi: Unknown key 0 pressed
Signed-off-by: Islam Amer <pharon@gmail.com>
platform_device_unregister will also call platform_device_put() to drop reference count.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This patch properly kfree out.pointer and gblock in error path.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This patch fixes the resource reclaim in acer_wmi_init error path.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Stanse found that there are two NULL checks missing in ips_monitor. So
check their value too and bail out appropriately if the allocation
failed.
While at it, add one more kfree to the fail path. It is not necessary
now, but may be needed in the future when a new allocation is added.
And for completeness.
Also remove unneeded initialization of the variables. They are all set
right after their declaration.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Current implementation in hp_wmi_init does not check any error and always
return success.
This patch properly handles recource reclaim and return err in error path.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
rfkill_alloc returns NULL when it fails if RFKILL is enabled. When RFKILL is
disabled, its return value of ERR_PTR(-ENODEV) is OK to use as all rfkill
functions will work with it, as they are simply empty stubs.
Reported-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: platform-driver-x86@vger.kernel.org
Cc: mjg@redhat.com
Cc: don@syst.com.br
Cc: rpurdie@rpsys.net
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Be sure to enable GPU turbo by default at load time and check GPU busy
and MCP exceeded status correctly. Also fix up CPU power comparison and
work around buggy MCH temp reporting.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Intel Core i3/5 platforms with integrated graphics support both CPU and
GPU turbo mode. CPU turbo mode is opportunistic: the CPU will use any
available power to increase core frequencies if thermal headroom is
available. The GPU side is more manual however; the graphics driver
must monitor GPU power and temperature and coordinate with a core
thermal driver to take advantage of available thermal and power headroom
in the package.
The intelligent power sharing (IPS) driver is intended to coordinate
this activity by monitoring MCP (multi-chip package) temperature and
power, allowing the CPU and/or GPU to increase their power consumption,
and thus performance, when possible. The goal is to maximize
performance within a given platform's TDP (thermal design point).
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
msi-laptop uses i8042_*() interfaces, so it should depend on
SERIO_I8042. E.g., when SERIO_I8042=m and MSI_LAPTOP=y:
msi-laptop.c:(.text+0x18a7fe): undefined reference to `i8042_install_filter'
msi-laptop.c:(.init.text+0xd69d): undefined reference to `i8042_remove_filter'
msi-laptop.c:(.exit.text+0x19c3): undefined reference to `i8042_remove_filter'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Lennart Poettering <mzxreary@0pointer.de>
Randy Dunlap has reported that building classmate-laptop fails when
CONFIG_RFKILL=m and CONFIG_ACPI_CMPC=y. He suggested depending on
RFKILL, but, then, it will not be possible to select classmate-laptop
when RFKILL is off. There's no known problem with building and using
classmate-laptop with RFKILL off. So depend on RFKILL or RFKILL=n.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: platform-driver-x86@vger.kernel.org
Cc: Daniel Oliveira Nascimento <don@syst.com.br>
Give different error messages if device_enum is NULL or if its type field
has the wrong value.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@
if ((E == NULL && ...) || ...)
{
... when != if (...) S1 else S2
when != E = E1
* E->f
... when any
return ...;
}
else S3
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
- Improve error handling, by explictly return zero for success, error otherwise
- WMI query command can have arbitrary input sized params
- WMI query command can have specific output sized params (0, 4, 128,..) byte
I like to go on here, but this is a rather intrusive change that should
be looked at first. I am sure the one or other thing can be done better or
there might be typo/bug somewhere.
This did not get any testing yet, only compile tested.
Next steps could be:
- Eventually introduce hp_wmi_perform_{read,write}_query macros
- Introduce new wireless query interface (0x1B)
- more
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
CC: linux-acpi@vger.kernel.org
CC: platform-driver-x86@vger.kernel.org
Depending on ACPI version (1.0 -> 32 bit) an integer could be
32 or 64 bit long. _WED internal concatenates two integers and
the return value will be 8 byte (2* 32 bit) or 16 byte (2* 64 bit)
long, depending on the ACPI version.
Also the data send with the WMI event is defined to be splitted into:
- Event ID -> 4 bytes
- Event Data -> 4 bytes
This gets messed up with new ACPI versions.
But it's a HP BIOS bug that may get fixed in the future
-> Support both, 16 and 8 byte _WED buffers.
Also the wrong assumption that from the event data sent, only the
first byte is relevant got cleaned up that it fits event_id/event_data
as described above.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: robert.moore@intel.com
Signed-off-by: Matthew Garrett <mjg@redhat.com>
CC: platform-driver-x86@vger.kernel.org
CC: linux-acpi@vger.kernel.org
Event id 0x4 defines the hotkey event.
No need (or even wrong) to query HPWMI_HOTKEY_QUERY if event id is != 0x4.
Reorder the eventcode conditionals and use switch case instead of if/else.
Use an enum for the event ids cases.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
CC: linux-acpi@vger.kernel.org
CC: platform-driver-x86@vger.kernel.org
This patch includes below fixes in error path:
1. fix a memory leak if device_create_file failed in
intel_menlow_add_one_attribute
2. properly free added attributes before return error in
intel_menlow_register_sensor error handler
3. properly call acpi_bus_unregister_driver before return error in
intel_menlow_module_init
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
- fix reversing of command/sub arguments
- fix a crash if the i2c interface is called before the device is found
Signed-off-by: Sreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commands with data must set the length in the message.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Found the N014, N051 and CR620 are must the same with N034 there are
load scm serial model. So, this patch move N014, N051 and CR620 dmi
information to right dmi table: msi_load_scm_models_dmi_table[]
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
drivers/platform/x86/eeepc-wmi.c: In function ‘eeepc_wmi_notify’:
drivers/platform/x86/eeepc-wmi.c:209: warning: ‘new’ may be used uninitialized in this function
drivers/platform/x86/eeepc-wmi.c:209: note: ‘new’ was declared here
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Yong Wang <yong.y.wang@intel.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Tejun Heo <tj@kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Acked-By: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
To give people easily an idea what could be WMI driven on their system.
Introduces:
wmi.debug=[01]
Tested on an acer:
ACPI: WMI: DEBUG Event INTEGER_TYPE - 65535
Situation where a driver registers for specific event and debug
handler gets overridden and set again if the registering driver gets
unloaded again is untested, but should work.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: platform-driver-x86@vger.kernel.org
CC: mjg59@srcf.ucam.org
CC: corentin.chary@gmail.com
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Clean up i8042 filter, rfkill and cancel delayed work when msi-laptop driver initial fail or exit on MSI scm model.
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
There have some MSI netbook change devices state by EC when user press
wlan/bluetooth/wwan function keys. So, add a i8042 filter to sync sw
state with BIOS when function keys pressed.
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Setup Wlan/Bluetooth/3G rfkill initial state to sync with the hardware
state from EC 0x2e address.
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use kmemdup when some other buffer is immediately copied into the
allocated region.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
statement S;
@@
- to = \(kmalloc\|kzalloc\)(size,flag);
+ to = kmemdup(from,size,flag);
if (to==NULL || ...) S
- memcpy(to, from, size);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Use kzalloc rather than the combination of kmalloc and memset.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression x,size,flags;
statement S;
@@
-x = kmalloc(size,flags);
+x = kzalloc(size,flags);
if (x == NULL) S
-memset(x, 0, size);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
eeepc-wmi uses backlight*() interfaces so it should depend on
BACKLIGHT_CLASS_DEVICE.
eeepc-wmi.c:(.text+0x2d7f54): undefined reference to `backlight_force_update'
eeepc-wmi.c:(.text+0x2d8012): undefined reference to `backlight_device_register'
eeepc-wmi.c:(.devinit.text+0x1c31c): undefined reference to `backlight_device_unregister'
eeepc-wmi.c:(.devexit.text+0x2f8b): undefined reference to `backlight_device_unregister'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: stable@kernel.org
The IPC (inter processor communications) is used to provide the
communications between kernel and system control units on some embedded
Intel x86 platforms.
(Various bits of clean up and restructuring by Alan Cox)
Signed-off-by: Sreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
The RFKILL device shares the same ACPI device used for backlight. So, it
required a new struct sharing both a backlight_device and a rfkill
device.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Document this, it is no fun to try to second guess why this sort of
stuff is in place years after it was added...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
1. Remove <handle>_path, as its only user was already removed in
a previous commit
2. Move all handle initialization, as well as <handle>_parent and
<handle>_paths to __init.* sections. This reduces the driver's
runtime footprint nicely.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Don't depend on the contents of led_path to know which LED interface
the firmware wants.
This removes the only user of *_path for the thinkpad-acpi ACPI
handlers, which will simplify future code.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Log more human-friendly errors instead of numeric values when
setup_acpi_notify() fails to install a notification handler.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Use acpi_format_exception() in acpi_evalf() instead of logging numeric
errors.
Also, when ACPICA returns an error, we should not be touching the return
object, as it is invalid. In debug mode, acpi_evalf() callers would
printk the returned crap (but fortunately, not use it).
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Use the EC HID (PNP0C09) to locate its main node, instead of a static
list.
Suggested-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Matthew Garrett <mjg@redhat.com>
Extract the backlight level range size detection from the brightness
subdriver, and allow the other subdrivers access to that information.
This also allows us to relocate some code to a more convenient place.
The moved code was largerly unmodified, except for the return type of
tpacpi_check_std_acpi_brightness_support(), which now is correctly
marked as returning "unsigned int", and and two cosmetic fixes to make
checkpatch.pl happy.
Fixes for the NVRAM polling mode for the brightness hotkeys will need
this.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Move the driver initial greetings out of the first subdriver, as we do a
lot of other initialization before that point, and the initial greetings
should go as soon as the driver decides that it should load.
These greetings are not cosmetic, they make my life easier when users
report bugs.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
The hotkey polling code is supposed to generate hotkey messages as
close to the way the IBM event-based volume hotkey firmware does as
possible, i.e:
* Pressing MUTE issues a mute hotkey event, even if already mute;
* Pressing Volume up/down issues a volume up/down hotkey event,
even if already at maximum or minumum volume;
* The act of unmuting issues a volume up/down event, depending on
which hotkey was used to unmute.
Fix the code to do just that (mute handling was incorrect), and handle
multiple hotkey presses between two polling cycles.
The new code uses the volume_toggle bit in NVRAM only to detect
repeated presses of the mute key and multiple presses of the volume
keys trying to go past the end of the volume scale. This will work
around a bug in recent Lenovo firmware (e.g. T400), which causes the
firmware to not update the volume_toggle bit in certain situations.
Reported-by: Yang Zhe <yangzhe1990@gmail.com>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
The X100e needs some quick fixes to work semi-right with this driver.
There are much better ways to do this, but we can start with a quick
update and do it properly later.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Lenovo is playing around with its ACPI BIOS, and will end up reusing
method names. Their memory is not nearly as long as thinkpad-acpi's...
Secure most of the old IBM codepaths against running in a non-IBM box.
This would happen on the Lenovo X100e in video_init(), for example. We
would misdetect it as an ancient model 570 firmware.
Also, refuse to load the driver if we cannot identify the vendor. No
ACPI ThinkPad in existence lacks this information, AFAIK.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
-tip testing found:
eeepc-wmi.c:(.text+0x36673c): undefined reference to `sparse_keymap_report_event'
drivers/built-in.o: In function `eeepc_wmi_init':
eeepc-wmi.c:(.init.text+0x19cd0): undefined reference to `sparse_keymap_setup'
eeepc-wmi.c:(.init.text+0x19cf0): undefined reference to `sparse_keymap_free'
eeepc-wmi.c:(.init.text+0x19d0b): undefined reference to `sparse_keymap_free'
drivers/built-in.o: In function `eeepc_wmi_exit':
eeepc-wmi.c:(.exit.text+0x2e87): undefined reference to `sparse_keymap_free'
To fix this select INPUT_SPARSEKMAP, like the ASUS driver does.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
We were storing -1 as an unsigned int and as a result the effect of
passing -1 was the same as using 1.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Corentin Chary <corentincj@iksaif.net>
The output of wmi_get_event_data shall be freed before return.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Yong Wang <yong.y.wang@linux.intel.com>
Add backlight support for WMI based Eee PC laptops.
Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Corentin Chary <corentincj@iksaif.net>
Add a platform device and use it as the parent device of all sub-devices.
Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Corentin Chary <corentincj@iksaif.net>
Add an eeepc_wmi context structure to manage all the sub-devices
that will be implemented later on. Put input device into it first.
Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Corentin Chary <corentincj@iksaif.net>
Made necessary by 6992f53349 ("sysfs: Use
one lockdep class per sysfs attribute").
Prevents further "key xxx not in .data" bug-reports. Although some
attributes could probably be converted to static ones, this is left for
people having hardware to test.
Found by this semantic patch:
@ init @
type T;
identifier A;
@@
T {
...
struct device_attribute A;
...
};
@ main extends init @
expression E;
statement S;
identifier err;
T *name;
@@
... when != sysfs_attr_init(&name->A.attr);
(
+ sysfs_attr_init(&name->A.attr);
if (device_create_file(E, &name->A))
S
|
+ sysfs_attr_init(&name->A.attr);
err = device_create_file(E, &name->A);
)
While reviewing, I put the initialization to apropriate places.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Greg KH <gregkh@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Mike Isely <isely@pobox.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Sujith Thomas <sujith.thomas@intel.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a WMI driver for Eee PC laptops. Currently it only supports hotkeys.
Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
In function 'asus_laptop_get_info':
warning: passing argument 3 of 'asus_handle_init' from incompatible pointer type
note: expected 'char **' but argument is of type 'const char **'
Introduced by commit c21085108a02e1b838c34f3650c8cc9fbd178615
("asus-laptop: fix style problems reported by checkpath.pl").
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Properly return backlight registration error to parent.
Mark struct backlight_ops as const.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Harald Welte <laforge@gnumonks.org> (registration failure)
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Properly return backlight registration error to parent.
Mark struct backlight_ops as const.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Reviewed-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Check newly registered backlight_device for error and properly
return error to parent.
Mark struct backlight_ops as const.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Values such as max_brightness should be set before backlights are
registered, but the current API doesn't allow that. Add a parameter to
backlight_device_register and update drivers to ensure that they
set this correctly.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - add ALDI/MEDION netbook E1222 to qurik reset table
Input: ALPS - fix stuck buttons on some touchpads
Input: wm831x-on - convert to use genirq
Input: ads7846 - add wakeup support
Input: appletouch - fix integer overflow issue
Input: ad7877 - increase pen up imeout
Input: ads7846 - add support for AD7843 parts
Input: bf54x-keys - fix system hang when pressing a key
Input: alps - add support for the touchpad on Toshiba Tecra A11-11L
Input: remove BKL, fix input_open_file() locking
Input: serio_raw - remove BKL
Input: mousedev - remove BKL
Input: add driver for TWL4030 vibrator device
Input: enable remote wakeup for PNP i8042 keyboard ports
Input: scancode in get/set_keycodes should be unsigned
Input: i8042 - use platfrom_create_bundle() helper
Input: wacom - merge out and in prox events
Input: gamecon - fix off by one range check
Input: wacom - replace WACOM_PKGLEN_PENABLED
* '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
The HID layer has some scan codes of the form 0xffbc0000 for logitech
devices which do not work if scancode is typed as signed int, so we need
to switch to unsigned it instead. While at it keycode being signed does
not make much sense either.
Acked-by: Márton Németh <nm127@freemail.hu>
Acked-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
