Replace the
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
with
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
to help coreboot community consume this file without relaxing their
licensing checks.
Signed-off-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20200329172513.133548-1-rajatja@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We should try to keep keycodes sequential unless there is a reason to leave
a gap in numbering, so let's move it from 0x280 to 0x27a while we still
can.
Fixes: 3b059da983 ("Input: allocate keycode for Selective Screenshot key")
Acked-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20200326182711.GA259753@dtor-ws
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
New Chrome OS keyboards have a "snip" key that is basically a selective
screenshot (allows a user to select an area of screen to be copied).
Allocate a keycode for it.
Signed-off-by: Rajat Jain <rajatja@google.com>
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Link: https://lore.kernel.org/r/20200313180333.75011-1-rajatja@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull more input updates from Dmitry Torokhov:
- fixups for Synaptics RMI4 driver
- a quirk for Goodinx touchscreen on Teclast tablet
- a new keycode definition for activating privacy screen feature found
on a few "enterprise" laptops
- updates to snvs_pwrkey driver
- polling uinput device for writing (which is always allowed) now works
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers
Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash
Input: goodix - add upside-down quirk for Teclast X89 tablet
Input: add privacy screen toggle keycode
Input: uinput - fix returning EPOLLOUT from uinput_poll
Input: snvs_pwrkey - remove gratuitous NULL initializers
Input: snvs_pwrkey - send key events for i.MX6 S, DL and Q
Add keycode for toggling electronic privacy screen to the keycodes
definition. Some new laptops have a privacy screen which can be toggled
with a key on the keyboard.
Signed-off-by: Mathew King <mathewk@chromium.org>
Link: https://lore.kernel.org/r/20191017163208.235518-1-mathewk@chromium.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Various keyboards have macro keys, which are intended to have user
programmable actions / key-sequences bound to them. In some cases these
macro keys are actually programmable in hardware, but more often they
basically are just extra keys and the playback of the key-sequence is done
by software running on the host.
One example of keyboards with macro-keys are various "internet" / "office"
keyboards have a set of so-called "Smart Keys", typically a set of 4 keys
labeled "[A]" - "[D]".
Another example are gaming keyboards, such as the Logitech G15 Gaming
keyboard, which has 18 "G"aming keys labeled "G1" to G18", 3 keys to select
macro presets labeled "M1" - "M3" and a key to start recording a macro
called "MR" note that even though there us a record key everything is
handled in sw on the host.
Besides macro keys the G15 (and other gaming keyboards) also has a buildin
LCD panel where the contents are controlled by the host. There are 5 keys
directly below the LCD intended for controlling a menu shown on the LCD.
The Microsoft SideWinder X6 keyboard is another gaming keyboard example,
this keyboard has 30 "S"idewinder keys and a key to cycle through
macro-presets.
After discussion between various involved userspace people we've come to
the conclusion that since these are all really just extra keys we should
simply treat them as such and give them their own event-codes, see:
https://github.com/libratbag/libratbag/issues/172
This commit adds the following new KEY_ defines for this:
KEY_MACRO1 - KEY_MACRO30. KEY_MACRO_RECORD_START/-STOP,
KEY_MACRO_PRESET_CYCLE, KEY_MACRO_PRESET1 - KEY_MACRO_PRESET3,
KEY_KBD_LCD_MENU1 - KEY_KBD_LCD_MENU5.
The defines leave room for adding some more LCD-menu, preset or macro keys,
the maximum values above are based on the maximum values to support all
currently known internet, office and gaming keyboards.
BugLink: https://github.com/libratbag/libratbag/issues/172
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull input updates from Dmitry Torokhov:
"A few new drivers:
- driver for Azoteq IQS550/572/525 touch controllers
- driver for Microchip AT42QT1050 keys
- driver for GPIO controllable vibrators
- support for GT5663 in Goodix driver
... along with miscellaneous driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: libps2 - mark expected switch fall-through
Input: qt1050 - add Microchip AT42QT1050 support
Input: add support for Azoteq IQS550/572/525
Input: add a driver for GPIO controllable vibrators
Input: synaptics-rmi4 - fix enum_fmt
Input: synaptics-rmi4 - fill initial format
HID: input: add mapping for KEY_KBD_LAYOUT_NEXT
Input: add KEY_KBD_LAYOUT_NEXT
Input: hyperv-keyboard - add module description
Input: olpc_apsp - depend on ARCH_MMP
Input: sun4i-a10-lradc-keys - add support for A83T
Input: snvs_pwrkey - use dev_pm_set_wake_irq() to simplify code
Input: lpc32xx-key - add clocks property and fix DT binding example
Input: i8042 - signal wakeup from atkbd/psmouse
Input: goodix - add GT5663 CTP support
Input: goodix - add regulators suppot
Input: evdev - use struct_size() in kzalloc() and vzalloc()
Input: edt-ft5x06 - convert to use SPDX identifier
Input: edt-ft5x06 - enable ACPI enumeration
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Merge tag 'v5.1' into next
Sync up with mainline to bring in the latest APIs.
The HID usage tables define a key to cycle through a set of keyboard
layouts, let's add corresponding keycode.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
- several new key mappings for HID
- a host of new ACPI IDs used to identify Elan touchpads in Lenovo
laptops
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ
HID: input: add mapping for "Toggle Display" key
HID: input: add mapping for "Full Screen" key
HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys
HID: input: add mapping for Expose/Overview key
HID: input: fix mapping of aspect ratio key
[media] doc-rst: switch to new names for Full Screen/Aspect keys
Input: document meanings of KEY_SCREEN and KEY_ZOOM
Input: elan_i2c - add hardware ID for multiple Lenovo laptops
It is hard to say what KEY_SCREEN and KEY_ZOOM mean, but historically DVB
folks have used them to indicate switch to full screen mode. Later, they
converged on using KEY_ZOOM to switch into full screen mode and KEY)SCREEN
to control aspect ratio (see Documentation/media/uapi/rc/rc-tables.rst).
Let's commit to these uses, and define:
- KEY_FULL_SCREEN (and make KEY_ZOOM its alias)
- KEY_ASPECT_RATIO (and make KEY_SCREEN its alias)
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This event code represents scroll reports from high-resolution wheels and
is modelled after the approach Windows uses. The value 120 is one detent
(wheel click) of movement. Mice with higher-resolution scrolling can send
fractions of 120 which must be accumulated in userspace. Userspace can either
wait for a full 120 to accumulate or scroll by fractions of one logical scroll
movement as the events come in. 120 was picked as magic number because it has
a high number of integer fractions that can be used by high-resolution wheels.
For more information see
https://docs.microsoft.com/en-us/previous-versions/windows/hardware/design/dn613912(v=vs.85)
These new axes obsolete REL_WHEEL and REL_HWHEEL. The legacy axes are emulated
by the kernel but the most accurate (and most granular) data is available
through the new axes.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
ABS_RESERVED was added in d9ca1c990a and accidentally removed as part of
ffe0e7cf29 when the high-resolution scrolling code was removed.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
This reverts commit aaf9978c3c.
Quoting Peter:
There is a HID feature report called "Resolution Multiplier"
Described in the "Enhanced Wheel Support in Windows" doc and
the "USB HID Usage Tables" page 30.
http://download.microsoft.com/download/b/d/1/bd1f7ef4-7d72-419e-bc5c-9f79ad7bb66e/wheel.docxhttps://www.usb.org/sites/default/files/documents/hut1_12v2.pdf
This was new for Windows Vista, so we're only a decade behind here. I only
accidentally found this a few days ago while debugging a stuck button on a
Microsoft mouse.
The docs above describe it like this: a wheel control by default sends
value 1 per notch. If the resolution multiplier is active, the wheel is
expected to send a value of $multiplier per notch (e.g. MS Sculpt mouse) or
just send events more often, i.e. for less physical motion (e.g. MS Comfort
mouse).
For the latter, you need the right HW of course. The Sculpt mouse has
tactile wheel clicks, so nothing really changes. The Comfort mouse has
continuous motion with no tactile clicks. Similar to the free-wheeling
Logitech mice but without any inertia.
Note that the doc also says that Vista and onwards *always* enable this
feature where available.
An example HID definition looks like this:
Usage Page Generic Desktop (0x01)
Usage Resolution Multiplier (0x48)
Logical Minimum 0
Logical Maximum 1
Physical Minimum 1
Physical Maximum 16
Report Size 2 # in bits
Report Count 1
Feature (Data, Var, Abs)
So the actual bits have values 0 or 1 and that reflects real values 1 or 16.
We've only seen single-bits so far, so there's low-res and hi-res, but
nothing in between.
The multiplier is available for HID usages "Wheel" and "AC Pan" (horiz wheel).
Microsoft suggests that
> Vendors should ship their devices with smooth scrolling disabled and allow
> Windows to enable it. This ensures that the device works like a regular HID
> device on legacy operating systems that do not support smooth scrolling.
(see the wheel doc linked above)
The mice that we tested so far do reset on unplug.
Device Support looks to be all (?) Microsoft mice but nothing else
Not supported:
- Logitech G500s, G303
- Roccat Kone XTD
- all the cheap Lenovo, HP, Dell, Logitech USB mice that come with a
workstation that I could find don't have it.
- Etekcity something something
- Razer Imperator
Supported:
- Microsoft Comfort Optical Mouse 3000 - yes, physical: 1:4
- Microsoft Sculpt Ergonomic Mouse - yes, physical: 1:12
- Microsoft Surface mouse - yes, physical: 1:4
So again, I think this is really just available on Microsoft mice, but
probably all decent MS mice released over the last decade.
Looking at the hardware itself:
- no noticeable notches in the weel
- low-res: 18 events per 360deg rotation (click angle 20 deg)
- high-res: 72 events per 360deg → matches multiplier of 4
- I can feel the notches during wheel turns
- low-res: 24 events per 360 deg rotation (click angle 15 deg)
- horiz wheel is tilt-based, continuous output value 1
- high-res: 24 events per 360deg with value 12 → matches multiplier of 12
- horiz wheel output rate doubles/triples?, values is 3
- It's a touch strip, not a wheel so no notches
- high-res: events have value 4 instead of 1
a bit strange given that it doesn't actually have notches.
Ok, why is this an issue for the current API? First, because the logitech
multiplier used in Harry's patches looks suspiciously like the Resolution
Multiplier so I think we should assume it's the same thing. Nestor, can you
shed some light on that?
- `REL_WHEEL` is defined as the number of notches, emulated where needed.
- `REL_WHEEL_HI_RES` is the movement of the user's finger in microns.
- `WM_MOUSEWHEEL` (Windows) is is a multiple of 120, defined as "the threshold
for action to be taken and one such action"
https://docs.microsoft.com/en-us/windows/desktop/inputdev/wm-mousewheel
If the multiplier is set to M, this means we need an accumulated value of M
until we can claim there was a wheel click. So after enabling the multiplier
and setting it to the maximum (like Windows):
- M units are 15deg rotation → 1 unit is 2620/M micron (see below). This is
the `REL_WHEEL_HI_RES` value.
- wheel diameter 20mm: 15 deg rotation is 2.62mm, 2620 micron (pi * 20mm /
(360deg/15deg))
- For every M units accumulated, send one `REL_WHEEL` event
The problem here is that we've now hardcoded 20mm/15 deg into the kernel and
we have no way of getting the size of the wheel or the click angle into the
kernel.
In userspace we now have to undo the kernel's calculation. If our click angle
is e.g. 20 degree we have to undo the (lossy) calculation from the kernel and
calculate the correct angle instead. This also means the 15 is a hardcoded
option forever and cannot be changed.
In hid-logitech-hidpp.c, the microns per unit is hardcoded per device.
Harry, did you measure those by hand? We'd need to update the kernel for
every device and there are 10 years worth of devices from MS alone.
The multiplier default is 8 which is in the right ballpark, so I'm pretty
sure this is the same as the Resolution Multiplier, just in HID++ lingo. And
given that the 120 magic factor is what Windows uses in the end, I can't
imagine Logitech rolling their own thing here. Nestor?
And we're already fairly inaccurate with the microns anyway. The MX Anywhere
2S has a click angle of 20 degrees (18 stops) and a 17mm wheel, so a wheel
notch is approximately 2.67mm, one event at multiplier 8 (1/8 of a notch)
would be 334 micron. That's only 80% of the fallback value of 406 in the
kernel. Multiplier 6 gives us 445micron (10% off). I'm assuming multiplier 7
doesn't exist because it's not a factor of 120.
Summary:
Best option may be to simply do what Windows is doing, all the HW manufacturers
have to use that approach after all. Switch `REL_WHEEL_HI_RES` to report in
fractions of 120, with 120 being one notch and divide that by the multiplier
for the actual events. So e.g. the Logitech multiplier 8 would send value 15
for each event in hi-res mode. This can be converted in userspace to
whatever userspace needs (combined with a hwdb there that tells you wheel
size/click angle/...).
Conflicts:
include/uapi/linux/input-event-codes.h -> I kept the new
reserved event in the code, so I had to adapt the revert
slightly
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Prior to commit 190d7f02ce ("HID: input: do not increment usages when
a duplicate is found") from the v4.18 kernel, HID used to shift the
event codes if a duplicate usage was found. This ended up in a situation
where a device would export a ton of ABS_MISC+n event codes, or a ton
of REL_MISC+n event codes.
This is now fixed, however userspace needs to detect those situation.
Fortunately, ABS_MT_SLOT-1 (ABS_MISC+6) was never assigned a code, and
so libinput can detect fake multitouch devices from genuine ones by
checking if ABS_MT_SLOT-1 is set.
Now that we have REL_WHEEL_HI_RES, libinput won't be able to differentiate
true high res mice from some other device in a pre-v4.18 kernel.
Set in stone that the ABS_MISC+6 and REL_MISC+1 are reserved and should not
be used so userspace can properly work around those old kernels.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This event code represents scroll reports from high-resolution wheels,
and will be used by future patches in this series. See the linux-input
"Reporting high-resolution scroll events" thread [0] for more details.
[0]: https://www.spinics.net/lists/linux-input/msg57380.html
Signed-off-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The key has the same use as the SW_ROTATE_LOCK, but is used on devices
where the state is not tracked by the hardware but has to be handled
in software.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Pull HID updates from Jiri Kosina:
- high resolution mode for Dell canvas support, from Benjamin Tissoires
- pen handling fixes for the Wacom driver, from Jason Gerecke
- i2c-hid: Apollo-Lake based laptops improvements, from Hans de Goede
- Input/Core: eraser tool support, from Ping Cheng
- new ALPS touchpad (T4, found currently on HP EliteBook 1000, Zbook
Stduio and HP Elite book x360) supportm from Masaki Ota
- other smaller assorted fixes
* 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (33 commits)
HID: cp2112: fix broken gpio_direction_input callback
HID: cp2112: fix interface specification URL
HID: Wacom: switch Dell canvas into highres mode
HID: wacom: generic: Send BTN_STYLUS3 when both barrel switches are set
HID: sony: Fix SHANWAN pad rumbling on USB
HID: i2c-hid: Add no-irq-after-reset quirk for 0911:5288 device
HID: add backlight level quirk for Asus ROG laptops
HID: cp2112: add HIDRAW dependency
HID: Add ID 044f:b605 ThrustMaster, Inc. force feedback Racing Wheel
HID: hid-logitech: remove redundant assignment to pointer value
HID: wacom: generic: Recognize WACOM_HID_WD_PEN as a type of pen collection
HID: rmi: Check that a device is a RMI device before calling RMI functions
HID: add multi-input quirk for GamepadBlock
HID: alps: add new U1 device ID
HID: alps: add support for Alps T4 Touchpad device
HID: alps: remove variables local to u1_init() from the device struct
HID: alps: properly handle max_fingers and minimum on X and Y axis
HID: alps: Separate U1 device code
HID: alps: delete unnecessary struct u1_dev devInfo
HID: usbhid: Convert timers to use timer_setup()
...
The Wacom Pro Pen 3D includes a third barrel switch which is intended to
be particularly useful in applications where one frequency uses pan, zoom,
and rotate to navigate around a scene or model. The pen is compatible with
the MobileStudio Pro, 2nd-gen Intuos Pro, and Cintiq Pro. When the third
button is pressed, these devices set both the HID_DG_BARRELSWITCH and
HID_DG_BARRELSWITCH2 usages since their HID descriptors do not include a
usage specific to the button.
Rather than send both BTN_STYLUS and BTN_STYLUS2 when the third button is
pressed, userspace (libinput) has requested that we detect this condition
and report a newly-defined BTN_STYLUS3 event instead. We could define a
quirk specific to devices compatible with the Pro Pen 3D, but the liklihood
of seeing both barrel switch bits set with other pens/devices is low enough
to not worry about (pens mechanically prevent accidental activation of
multiple switches).
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds a new keycode to allow users invoke a context-aware desktop
assistant application.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch add support to the 3 touch keys on Wacom Cintiq Pro. These touch
keys are in the middle of the other two keys on the top edge of the tablet.
Signed-off-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Some devices with a pen may have a switch that can be used to detect
when the pen is inserted or removed to a slot on the device. Let's add
a define to the input event codes so that everyone can be on the same
page for what event we should generate when the pen is inserted or
removed.
In general the pen switch could be used by the software on the device to
kick off any number of actions when the pen is inserted or removed.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add input-event-codes header file and move all type and axis defines
there.
The purpose of this new header file is to have a single canonical source
for event-codes which can be used outside of C-code too. One example of
such usage is the use of event-codes in devicetree source files.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
