Several models of HP laptops using the same DSDT have hotkey buttons
that do not work until the EC is configured to enable them.
Signed-off-by: NKyle Evans <kvans32@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Fix the following build warning

CC [M]  drivers/platform/x86/asus-wmi.o
drivers/platform/x86/asus-wmi.c:1356:13: warning: ‘do_nothing’ defined but not used [-Wunused-function]
Signed-off-by: NShuah Khan <shuah.khan@hp.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Fengguang Wu run kernel build test to platform-drivers-x86/linux-next git tree
on x86_64 architecture and found a warning that was introduced by
727651bf738b6b917335025d09323d0962eda114 commit:

drivers/platform/x86/acer-wmi.c: In function ‘WMID_set_capabilities’:
drivers/platform/x86/acer-wmi.c:1211: warning: ‘devices’ may be used
uninitialized in this function

This patch fixes the above warning message.

Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Handle HKEY event generated on AC power change. The current message
asks users to submit data related to this event which leads to
a lot of confusion and noise on the mailing list.

The following is a list affected models and 'Message-Id'
from ibm-acpi-devel@lists.sourceforge.net of people who saw this
event when either plugging or unplugging the AC adapter or
docking or undocking their laptop.

X120e - CAAAujb5v9dHdbdxDVvhNJoG4UrZC1TgKqeB_zGpAy7q8kZHMEQ@mail.gmail.com
X121e - 20120817143459.GB3462@x1.osrc.amd.com
X220  - Confirmed by Richard Hartmann
X220i - 4F406274.7070807@gmail.com
X220t - 4F489F5B.9040705@cs.tu-berlin.de
X230  - CAKx4u7kqvVH0-gstomsiVYdGC0i6=bGxzaQ8sq9gbg76TGme3w@mail.gmail.com
T420  - 9c848ee30b006737d0534d906bab0cf6@niklaas-baudet.net
T420s - 20120608080824.GS25324@hexapodia.org
W520  - 20121008181050.GF2549@ericlaptop.home.christensenplace.us
Signed-off-by: NRichard Hartmann <richih.mailinglist@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Add support for the HP Pavilion 14 Chromebook's trackpad, which is a reuse
of the Samsung Series 5 550 trackpad.
Signed-off-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

The Samsung Series 5 Chromebook is equipped with  a Taos tsl2583
light sensor. Instatiate it here.
Signed-off-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Two legacy Chromebooks, the Cr-48, and the Acer AC700,
are equipped with a Taos tsl2563 light sensor.
This will instantiate the sensor on those laptops.
Signed-off-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Add support for the Acer C7's trackpad, which is a reuse
of the Samsung Series 5 550 trackpad.
Signed-off-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

The Cypress trackpad on smbus is used on other systems
as well. Lets make the name more generic.
Signed-off-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Signed-off-by: NCorentin Chary <corentin.chary@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Signed-off-by: NCorentin Chary <corentin.chary@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Z series and other recent models have 0x14? for lid and keyboard
backlight.
Signed-off-by: NMattia Dongili <malattia@linux.it>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Signed-off-by: NMattia Dongili <malattia@linux.it>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

The call to handlers 0x124 and 0x135 (rfkill control) seems to take a
bitmask to control various states of the device. For our rfkill we need
a fully on/off. SVZ1311Z9R/X's LTE modem needs more bits up.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47751Signed-off-by: NMattia Dongili <malattia@linux.it>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>
Cc: stable@kernel.org

This adds the chromeos_laptop driver. It supports
the Cypress APA SMBUS touchpad as well as the isl29018 i2c ambient
light sensor on the Samsung Series 5 550 Chromebook.
Signed-off-by: NBenson Leung <bleung@chromium.org>
Reviewed-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

The new B series BIOS has version string 43CN46WW. The driver
requires that 2nd and 3rd characters be 'E' and 'T' respectively,
where as the newer BIOS has 'C' and 'N' respectively. Failing to
load the module causes some of the hotkeys to not work.

Before the patch
================
sudo modprobe thinkpad_acpi
FATAL: Error inserting thinkpad_acpi (/lib/modules/3.5.0-15-generic/kernel/drivers/platform/x86/thinkpad_acpi.ko): No such device

After the patch
===============
[44937.265438] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[44937.265445] thinkpad_acpi: http://ibm-acpi.sf.net/
[44937.265449] thinkpad_acpi: ThinkPad BIOS 43CN46WW, EC unknown
[44937.265453] thinkpad_acpi: Lenovo Lenovo B470e, model HuronRiver Platform
[44937.266479] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[44937.266557] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[44937.267846] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[44937.268131] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input17
Signed-off-by: NManoj Iyer <manoj.iyer@canonical.com>
Tested-by: NJames Ferguson <james.ferguson@canonical.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Add rfkill support for the GPS radio found in HP laptops (HP Elitebook 2170p and the like)
using the Ericsson F5321/H5321 Mobile Broadband Module.
Signed-off-by: NViliam Trepák <trepo@netcomga.sk>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Found another Lenovo ideapad S205 the product name is 1038DPG, it has
a 0x78 EC register exposes the state of wifi hardware switch on the machine.

So, add this patch to support Lenovo ideapad S205-1038DPG wifi hardware
switch in acer-wmi driver.

Evidently the Ideapad S205 is just a model name on the market, but they have
totally different product name in DMI table.

Reference: bko#43007
        https://bugzilla.kernel.org/show_bug.cgi?id=43007Tested-by: NColin <colin.newell@gmail.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Found another Lenovo ideapad S205 the product name is 10382JG, it has
a 0x78 EC register exposes the state of wifi hardware switch on the machine.

So, add this patch to support Lenovo ideapad S205-10382JG wifi hardware
switch in acer-wmi driver.

Evidently the Ideapad S205 is just a model name on the market, but they have
totally different product name in DMI table.

Reference: bko#43007
        https://bugzilla.kernel.org/show_bug.cgi?id=43007Tested-by: NIvo Anjo <knuckles@gmail.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Fill up all the video switch keys in the map.
Signed-off-by: NAceLan Kao <acelan.kao@canonical.com>
Signed-off-by: NCorentin Chary <corentin.chary@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

For machines with AMD graphic chips, it will send out WMI event and ACPI
interrupt at the same time while hitting the hotkey. BIOS will notify the
system the next display output mode throught WMI event code, so that
windows' application can show an OSD to tell the user which mode will be
taken effect. User can hit the display toggle key many times within 2
seconds to choose the mode they want. After 2 seconds, WMI dirver should
send a WMIMethod(SDSP) command to tell the BIOS which mode the user chose.
And then BIOS will raise another ACPI interrupt to tell the system to
really switch the display mode.

In Linux desktop, we don't have this kind of OSD to let users to choose
the mode they want, so we don't need to call WMIMethod(SDSP) to have
another ACPI interrupt. To simplify the problem, we just have to ignore
the WMI event, and let the first ACPI interrupt to send out the key event.

For the need, here comes another quirk to add machines with this kind of
behavior. When the WMI driver receives the display toggle WMI event, and
found the machin is in the list, it will do nothing and let ACPI video
driver to report the key event.
Signed-off-by: NAceLan Kao <acelan.kao@canonical.com>
Signed-off-by: NCorentin Chary <corentincj@iksaif.net>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Fill up all the video switch keys in the map.
Signed-off-by: NAceLan Kao <acelan.kao@canonical.com>
Signed-off-by: NCorentin Chary <corentin.chary@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

0x60 is touchpad enable key, but is misdefined in the keymap.
Signed-off-by: NAceLan Kao <acelan.kao@canonical.com>
Signed-off-by: NCorentin Chary <corentin.chary@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

0x60 is touchpad enable key, but is misdefined in the keymap.
Signed-off-by: NAceLan Kao <acelan.kao@canonical.com>
Signed-off-by: NCorentin Chary <corentin.chary@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Maybe this should be shared in another module...
Signed-off-by: NCorentin Chary <corentin.chary@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Signed-off-by: NCorentin Chary <corentin.chary@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Add MSI Wind support to msi-wmi driver. MSI Wind has different GUID for
key events, different WMI key scan codes, it does not need filtering
consecutive identical events and it does not support backlight control
via MSIWMI_BIOS_GUID WMI. Tested on MSI Wind U100.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Introduced quirk_last_pressed variable that would indicate if
last_pressed is used or not. Also converted last_pressed to simple
variable in order to allow keymap to be non-contiguous.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Introduced function msi_wmi_backlight_setup() that initializes backlight
device. Made driver load and work if only one WMI (only for hotkeys or
only for backlight) is present.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Use enums for consecutive scancodes, rename key names from MSI_WMI_* to
MSI_KEY_* and use tabs for whitespace in msi_wmi_keymap.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Acked-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Use UUID defines in MODULE_ALIAS strings to avoid repeating strings.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Acked-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Fix memory leak - don't forget to kfree ACPI object when returning from
msi_wmi_notify() after suppressing key event.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Acked-by: NAnisse Astier <anisse@astier.eu>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

It seems that existing brightness control works only for old EC models.
On newer ones auto_brightness access always timeouts and lcd_level
always shows 0. So disable brightness control for new EC models. It
works fine with ACPI video driver anyway.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Add ABI documentation for all sysfs files exposed by msi-laptop driver.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Add MSI Wind U90/U100 to DMI table and add some missing EC features
support such as basic fan control, turbo and ECO modes and touchpad
state. Tested on MSI Wind U100.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

This patch introduced a quirk_entry struct, then we merged all quirk
tables to msi_dmi_table. Then we can more easily to set different quirk
attributes for different machine.
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>

Changed this patch so that it could be applied before MSI Wind U100
support patch. Changed rfkill logic for ec_read_only quirk support.
Removed delays if ec_delay = false.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Acked-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Assign initial value to variable in order to prevent gcc warning about
uninitialized variable.
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

Use proper function return codes instead of -1
Signed-off-by: NMaxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

For those machines with wapf=4, BIOS won't update the wireless LED,
since wapf=4 means user application will take in chage of the wifi and bt.
So, we have to update wlan LED status explicitly.

But I found there is another wireless LED bug in launchpad and which is
not in the wapf=4 quirk.
So, it might be better to set wireless LED status explicitly for all
machines.

BugLink: https://launchpad.net/bugs/901105Signed-off-by: NAceLan Kao <acelan.kao@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Pull signal handling cleanups from Al Viro:
 "This is the first pile; another one will come a bit later and will
  contain SYSCALL_DEFINE-related patches.

   - a bunch of signal-related syscalls (both native and compat)
     unified.

   - a bunch of compat syscalls switched to COMPAT_SYSCALL_DEFINE
     (fixing several potential problems with missing argument
     validation, while we are at it)

   - a lot of now-pointless wrappers killed

   - a couple of architectures (cris and hexagon) forgot to save
     altstack settings into sigframe, even though they used the
     (uninitialized) values in sigreturn; fixed.

   - microblaze fixes for delivery of multiple signals arriving at once

   - saner set of helpers for signal delivery introduced, several
     architectures switched to using those."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (143 commits)
  x86: convert to ksignal
  sparc: convert to ksignal
  arm: switch to struct ksignal * passing
  alpha: pass k_sigaction and siginfo_t using ksignal pointer
  burying unused conditionals
  make do_sigaltstack() static
  arm64: switch to generic old sigaction() (compat-only)
  arm64: switch to generic compat rt_sigaction()
  arm64: switch compat to generic old sigsuspend
  arm64: switch to generic compat rt_sigqueueinfo()
  arm64: switch to generic compat rt_sigpending()
  arm64: switch to generic compat rt_sigprocmask()
  arm64: switch to generic sigaltstack
  sparc: switch to generic old sigsuspend
  sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINE
  sparc: kill sign-extending wrappers for native syscalls
  kill sparc32_open()
  sparc: switch to use of generic old sigaction
  sparc: switch sys_compat_rt_sigaction() to COMPAT_SYSCALL_DEFINE
  mips: switch to generic sys_fork() and sys_clone()
  ...