Unfortunately details of USB HID transport bled into HID core and
handling of numbered/unnumbered reports is quite a mess, with
hid_report_len() calculating the length according to USB rules,
and hid_hw_raw_request() adding report ID to the buffer for both
numbered and unnumbered reports.
Untangling it all requres a lot of changes in HID, so for now let's
handle this in the driver.
[jkosina@suse.cz: microoptimize field->report->id to report->id]
Fixes: 14c9c014ba ("HID: add vivaldi HID driver")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Stephen Boyd <swboyd@chromium.org> # CoachZ
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Battery status on Elan tablet driver is reported for the HP ENVY x360
15t-dr100. There is no separate battery for the Elan controller resulting in a
battery level report of 0% or 1% depending on whether a stylus has interacted
with the screen. These low battery level reports causes a variety of bad
behavior in desktop environments. This patch adds the appropriate quirk to
indicate that the batery status is unused for this target.
Cc: stable@vger.kernel.org
Signed-off-by: Karl Kurbjun <kkurbjun@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
- support for USI style pens (Tero Kristo, Mika Westerberg)
- quirk for devices that need inverted X/Y axes (Alistair Francis)
- small core code cleanups and deduplication (Benjamin Tissoires)
If the timer introduced by the commit below is started, then it must be
deleted in the error handling of the probe. Otherwise it would trigger
once the driver is no more.
Fixes: 0b91b4e4da ("HID: magicmouse: Report battery level over USB")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Tested-by: José Expósito <jose.exposito89@gmail.com>
Reported-by: <syzbot+a437546ec71b04dfb5ac@syzkaller.appspotmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This function had kernel-doc that not used a hash to separate
the function name from the one line description.
The warning was found by running scripts/kernel-doc, which is
caused by using 'make W=1'.
drivers/hid/intel-ish-hid/ishtp-fw-loader.c:271: warning: This comment
starts with '/**', but isn't a kernel-doc comment. Refer
Documentation/doc-guide/kernel-doc.rst
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Specify that both TGL and ADL don't support DMA cache snooping.
Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The function performs a check on the hdev input parameters, however, it
is used before the check.
Initialize the udev variable after the sanity check to avoid a
possible NULL pointer dereference.
Fixes: 9614219e93 ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443763 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The function performs a check on its input parameters, however, the
hdev parameter is used before the check.
Initialize the stack variables after checking the input parameters to
avoid a possible NULL pointer dereference.
Fixes: 9614219e93 ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443804 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The function performs a check on the hdev input parameters, however, it
is used before the check.
Initialize the udev variable after the sanity check to avoid a
possible NULL pointer dereference.
Fixes: 9614219e93 ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443827 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The function performs a check on its input parameters, however, the
hdev parameter is used before the check.
Initialize the stack variables after checking the input parameters to
avoid a possible NULL pointer dereference.
Fixes: 9614219e93 ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443831 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a new driver for the LetSketch / VSON WP9620N drawing tablet. This
drawing tablet is also sold under other brand names such as Case U,
presumably this driver will work for all of them. But it has only been
tested with a LetSketch WP9620N model.
These tablets also work without a special HID driver, but then only
part of the active area works and both the pad and stylus buttons are
hardwired to special key-combos. E.g. the 2 stylus buttons send right
mouse clicks / resp. "e" key presses.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=2005575
BugLink: https://github.com/DIGImend/digimend-kernel-drivers/issues/528
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Use the function key table introduced for the Magic Keyboard 2021
without fingerprint reader in the models with fingerprint reader and/or
numpad.
Tested with the ANSI variant of the keyboard with and without numpad.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The new 2021 apple models have a different FN key assignment. Add a new
translation table and use that for the 2021 magic keyboard.
Signed-off-by: Benjamin Berg <bberg@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The Apple Magic Trackpad 2021 (3rd generation) has the same product ID
as the 2nd generation. However, when connected through Bluetooth, the
version has changed from 0x107 to 0x110.
The other meaningful change is that the name has dropped the generation
number and now it is just "Apple Inc. Magic Trackpad", like the first
generation model.
Set the device name correctly to ensure the same driver settings are
loaded, whether connected via Bluetooth or USB.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
If the Apple Magic Trackpad 2 has been connected to a Mac, the name
is automatically personalized showing its owner name. For example:
"José Expósito's Trackpad".
When connected through Bluetooth, the personalized name is reported,
however, when connected through USB the generic name is reported.
Set the device name correctly to ensure the same driver settings are
loaded, whether connected via Bluetooth or USB.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Allow the touchscreen-inverted-x/y device tree properties to control the
HID_QUIRK_X_INVERT/HID_QUIRK_Y_INVERT quirks for the hid-input device.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Acked-by: Rob Herring <robh@kernel.org>
[bentiss: silence checkpatch warnings]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211208124045.61815-3-alistair@alistair23.me
Add a HID_QUIRK_X_INVERT/HID_QUIRK_Y_INVERT quirk that can be used
to invert the X/Y values.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
[bentiss: silence checkpatch warning]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211208124045.61815-2-alistair@alistair23.me
Currently, the table that stores information about the connected hidraw
devices has a mutex to prevent concurrent hidraw users to manipulate the
hidraw table (e.g. delete an entry) while someone is trying to use
the table (e.g. issuing an ioctl to the device), preventing the kernel
to referencing a NULL pointer. However, since that every user that wants
to access the table for both manipulating it and reading it content,
this prevents concurrent access to the table for read-only operations
for different or the same device (e.g. two hidraw ioctls can't happen at
the same time, even if they are completely unrelated).
This proves to be a bottleneck and gives performance issues when using
multiple HID devices at same time, like VR kits where one can have two
controllers, the headset and some tracking sensors.
To improve the performance, replace the table mutex with a read-write
semaphore, enabling multiple threads to issue parallel syscalls to
multiple devices at the same time while protecting the table for
concurrent modifications.
Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211130132957.8480-2-andrealmeid@collabora.com
Fix the following coccicheck REVIEW:
Use swap() instead of reimplementing it.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: chiminghao <chi.minghao@zte.com.cn>
[bentiss: rewrote commit title]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211109082610.131341-1-chi.minghao@zte.com.cn
Add USI defined usages to the HID debug code.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211210111138.1248187-6-tero.kristo@linux.intel.com
This function is not called outside of hid-input.c so we can make it
static.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211210111138.1248187-5-tero.kristo@linux.intel.com
This and HID_DG_STYLUS are pretty much the same thing so add suffix for
HID_DG_PEN too. This makes the input device name look better.
While doing this, remove the suffix override from hid-multitouch, as it
is now handled by hid-input. Also, the suffix override done by
hid-multitouch was wrong, as it mapped HID_DG_PEN => "Stylus" and
HID_DG_STYLUS => "Pen".
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
[bentiss: amended to keep the same name for hid-multitouch devices]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211210111138.1248187-3-tero.kristo@linux.intel.com
Since we are going to have more MSC events too, add map_msc() that can
be used to fill in necessary fields and avoid boilerplate code.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211210111138.1248187-2-tero.kristo@linux.intel.com
Battery status is reported for the Asus UX550VE touchscreen even though
it does not have a battery. Prevent it from always reporting the
battery as low.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1897823
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fixes spurious wakeups from s0ix on Lenovo ThinkPad X1 Cargon Gen 9 on
lid close.
These wakeups are generated by interrupts from the ISH on changes to the
lid status.
By disabling the wake IRQ from the ISH we inhibit these spurious
wakeups while keeping the resume from LID open through the ACPI
interrupt.
Reports on the Lenovo forums indicate that Lenovo ThinkPad X1 Yoga Gen6
is also affected.
Fixes: ae02e5d40d ("HID: intel-ish-hid: ipc layer")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214855
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211130060117.3026-1-linux@weissschuh.net
The prodikeys HID driver only controls USB devices, yet did not have a
dependancy on USB_HID. This causes build errors on some configurations
like nios2 when building due to new changes to the prodikeys driver.
Reported-by: kernel test robot <lkp@intel.com>
Cc: stable@vger.kernel.org
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211203081231.2856936-1-gregkh@linuxfoundation.org
The chicony HID driver only controls USB devices, yet did not have a
dependancy on USB_HID. This causes build errors on some configurations
like sparc when building due to new changes to the chicony driver.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: stable@vger.kernel.org
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211203075927.2829218-1-gregkh@linuxfoundation.org
We don't gain much by having them as inline, and it
actually prevents us to attach a probe to those helpers.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211202095334.14399-5-benjamin.tissoires@redhat.com
There is a lot of duplication of code in the HID low level drivers.
Better have everything in one place so we can eventually extend it
in a generic way.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211202095334.14399-4-benjamin.tissoires@redhat.com
When the setup of the GHL fails, we are not calling hid_hw_stop().
This leads to the hidraw node not being released, meaning a crash
whenever somebody attempts to open the file.
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211202095334.14399-2-benjamin.tissoires@redhat.com
Some HID drivers are only for USB drivers, yet did not depend on
CONFIG_USB_HID. This was hidden by the fact that the USB functions were
stubbed out in the past, but now that drivers are checking for USB
devices properly, build errors can occur with some random
configurations.
Reported-by: kernel test robot <lkp@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211202114819.2511954-1-gregkh@linuxfoundation.org
Many HID drivers assume that the HID device assigned to them is a USB
device as that was the only way HID devices used to be able to be
created in Linux. However, with the additional ways that HID devices
can be created for many different bus types, that is no longer true, so
properly check that we have a USB device associated with the HID device
before allowing a driver that makes this assumption to claim it.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Michael Zaidman <michael.zaidman@gmail.com>
Cc: Stefan Achatz <erazor_de@users.sourceforge.net>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
[bentiss: amended for thrustmater.c hunk to apply]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211201183503.2373082-3-gregkh@linuxfoundation.org
The wacom driver accepts devices of more than just USB types, but some
code paths can cause problems if the device being controlled is not a
USB device due to a lack of checking. Add the needed checks to ensure
that the USB device accesses are only happening on a "real" USB device,
and not one on some other bus.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211201183503.2373082-2-gregkh@linuxfoundation.org
A number of HID drivers already call hid_is_using_ll_driver() but only
for the detection of if this is a USB device or not. Make this more
obvious by creating hid_is_usb() and calling the function that way.
Also converts the existing hid_is_using_ll_driver() functions to use the
new call.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211201183503.2373082-1-gregkh@linuxfoundation.org
Add a HID_QUIRK_NO_INIT_REPORTS quirk for the
Microsoft Surface 3 (non pro) type-cover.
Trying to init the reports seems to confuse the type-cover and
causes 2 issues:
1. Despite hid-multitouch sending the command to switch the
touchpad to multitouch mode, it keeps sending events on the
mouse emulation interface.
2. The touchpad completely stops sending events after a reboot.
Adding the HID_QUIRK_NO_INIT_REPORTS quirk fixes both issues.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When connected over USB, the Apple Magic Keyboard 2015 registers 3
different interfaces. One of them is used to report the battery level.
However, unlike when connected over Bluetooth, the battery level is not
reported automatically and it is required to fetch it manually.
Add a new quirk to fix the battery report descriptor and a timer to
fetch the battery level.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Replace the existing quirk hardcoded values with the BIT macro in order
to simplify including new quirks.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When a keyboard without a function key is detected, instead of removing
all quirks, remove only the APPLE_HAS_FN quirk.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
