commit 4bd763568d ("HID: amd_sfh: Support for additional light sensor")
adds additional sensor devices, but forgets to add the number of HID
devices to match. Thus, the number of HID devices does not match the
actual number of sensors.
In order to prevent corruption and system hangs when more than the
allowed number of HID devices are accessed, the number of HID devices is
increased accordingly.
Fixes: 4bd763568d ("HID: amd_sfh: Support for additional light sensor")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217354
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Link: https://lore.kernel.org/r/20230424160406.2579888-1-Basavaraj.Natikar@amd.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Some devices will include battery status usages in the HID descriptor
but we won't see that battery data for one reason or another. For example,
AES sensors won't send battery data unless an AES pen is in proximity.
If a user does not have an AES pen but instead only interacts with the
AES touchscreen with their fingers then there is no need for us to create
a battery object. Similarly, if a family of peripherals shares the same
HID descriptor between wired-only and wireless-capable SKUs, users of the
former may never see a battery event and will not want a power_supply
object created.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217062
Link: https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/2354
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Rather than creating batteries as part of the initial device probe, let's
make the process lazy. This gives us the opportunity to prevent batteries
from being created in situations where they are unnecessary.
There are two cases in particular where batteries are being unnecessarily
created at initialization. These are AES sensors (for which we don't know
any battery status information until a battery-powered pen actually comes
into prox) peripheral tablets which share HID descriptors between the
wired-only and wireless-capable SKUs of a family of devices.
This patch will delay battery initialization of the former until a pen
actually comes into prox. It will delay battery initialization of the
latter until either a pen comes into prox or a "heartbeat" packet is
processed.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217062
Link: https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/2354
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Daniel Borkmann says:
====================
pull-request: bpf-next 2023-04-13
We've added 260 non-merge commits during the last 36 day(s) which contain
a total of 356 files changed, 21786 insertions(+), 11275 deletions(-).
The main changes are:
1) Rework BPF verifier log behavior and implement it as a rotating log
by default with the option to retain old-style fixed log behavior,
from Andrii Nakryiko.
2) Adds support for using {FOU,GUE} encap with an ipip device operating
in collect_md mode and add a set of BPF kfuncs for controlling encap
params, from Christian Ehrig.
3) Allow BPF programs to detect at load time whether a particular kfunc
exists or not, and also add support for this in light skeleton,
from Alexei Starovoitov.
4) Optimize hashmap lookups when key size is multiple of 4,
from Anton Protopopov.
5) Enable RCU semantics for task BPF kptrs and allow referenced kptr
tasks to be stored in BPF maps, from David Vernet.
6) Add support for stashing local BPF kptr into a map value via
bpf_kptr_xchg(). This is useful e.g. for rbtree node creation
for new cgroups, from Dave Marchevsky.
7) Fix BTF handling of is_int_ptr to skip modifiers to work around
tracing issues where a program cannot be attached, from Feng Zhou.
8) Migrate a big portion of test_verifier unit tests over to
test_progs -a verifier_* via inline asm to ease {read,debug}ability,
from Eduard Zingerman.
9) Several updates to the instruction-set.rst documentation
which is subject to future IETF standardization
(https://lwn.net/Articles/926882/), from Dave Thaler.
10) Fix BPF verifier in the __reg_bound_offset's 64->32 tnum sub-register
known bits information propagation, from Daniel Borkmann.
11) Add skb bitfield compaction work related to BPF with the overall goal
to make more of the sk_buff bits optional, from Jakub Kicinski.
12) BPF selftest cleanups for build id extraction which stand on its own
from the upcoming integration work of build id into struct file object,
from Jiri Olsa.
13) Add fixes and optimizations for xsk descriptor validation and several
selftest improvements for xsk sockets, from Kal Conley.
14) Add BPF links for struct_ops and enable switching implementations
of BPF TCP cong-ctls under a given name by replacing backing
struct_ops map, from Kui-Feng Lee.
15) Remove a misleading BPF verifier env->bypass_spec_v1 check on variable
offset stack read as earlier Spectre checks cover this,
from Luis Gerhorst.
16) Fix issues in copy_from_user_nofault() for BPF and other tracers
to resemble copy_from_user_nmi() from safety PoV, from Florian Lehner
and Alexei Starovoitov.
17) Add --json-summary option to test_progs in order for CI tooling to
ease parsing of test results, from Manu Bretelle.
18) Batch of improvements and refactoring to prep for upcoming
bpf_local_storage conversion to bpf_mem_cache_{alloc,free} allocator,
from Martin KaFai Lau.
19) Improve bpftool's visual program dump which produces the control
flow graph in a DOT format by adding C source inline annotations,
from Quentin Monnet.
20) Fix attaching fentry/fexit/fmod_ret/lsm to modules by extracting
the module name from BTF of the target and searching kallsyms of
the correct module, from Viktor Malik.
21) Improve BPF verifier handling of '<const> <cond> <non_const>'
to better detect whether in particular jmp32 branches are taken,
from Yonghong Song.
22) Allow BPF TCP cong-ctls to write app_limited of struct tcp_sock.
A built-in cc or one from a kernel module is already able to write
to app_limited, from Yixin Shen.
Conflicts:
Documentation/bpf/bpf_devel_QA.rst
b7abcd9c65 ("bpf, doc: Link to submitting-patches.rst for general patch submission info")
0f10f647f4 ("bpf, docs: Use internal linking for link to netdev subsystem doc")
https://lore.kernel.org/all/20230307095812.236eb1be@canb.auug.org.au/
include/net/ip_tunnels.h
bc9d003dc4 ("ip_tunnel: Preserve pointer const in ip_tunnel_info_opts")
ac931d4cde ("ipip,ip_tunnel,sit: Add FOU support for externally controlled ipip devices")
https://lore.kernel.org/all/20230413161235.4093777-1-broonie@kernel.org/
net/bpf/test_run.c
e5995bc7e2 ("bpf, test_run: fix crashes due to XDP frame overwriting/corruption")
294635a816 ("bpf, test_run: fix &xdp_frame misplacement for LIVE_FRAMES")
https://lore.kernel.org/all/20230320102619.05b80a98@canb.auug.org.au/
====================
Link: https://lore.kernel.org/r/20230413191525.7295-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ignore the reported battery level of the built-in touchscreen to suppress
battery warnings when a stylus is used. The device ID was added and the
battery ignore quirk was enabled.
Signed-off-by: weiliang1503 <weiliang1503@gmail.com>
Link: https://lore.kernel.org/r/20230330115638.16146-1-weiliang1503@gmail.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
I was finally able to obtain a MacBook1,1 to test and I've now confirmed
that it has the tilde key quirk as well:
Product Model Year System CPU Shape Labels Country Quirky
============================================================================
05ac:0218 A1181 2006 MacBook1,1 T2500 ISO British 13 Yes
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Link: https://lore.kernel.org/r/20230404024829.13982-1-alexhenrie24@gmail.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The mcp2221_raw_event retrieves the value and direction of gpio on the
same command, by setting the value on mcp->status and the direction on
mcp->gpio_dir; and the offset at which they are read is based on
mcp->gp_idx, set by the gpiochip callbacks.
However, the individual gpiochip calls set the index to look for
directly on the field they want to track. This create a "double offset"
in the final read in the response report.
Align the behaviour of mcp2221_raw_event and
mcp_gpio_get/mcp_gpio_get_direction by putting gp_idx on those calls to
the base offset of the gpio status struct.
Signed-off-by: Louis Morhet <lmorhet@kalrayinc.com>
Link: https://lore.kernel.org/r/dd0b23800a79d2a464e1e9ed429b018b69fd5df2.1680602387.git.lmorhet@kalrayinc.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The documentation of the component (section 3.1.12 GET GPIO VALUES)
describes the hid report structure with two fields per gpio:
its value, followed by its direction.
However, the driver describes it with a wrong order:
direction followed by value.
Fix the structure representing the report answered by the chip to the
GET GPIO VALUES command.
Fixes commit 567b8e9fed ("HID: mcp2221: Fix GPIO output handling")
Signed-off-by: Louis Morhet <lmorhet@kalrayinc.com>
Link: https://lore.kernel.org/r/945967fbab56d53f9630ad3844b64734f8c3107e.1680602387.git.lmorhet@kalrayinc.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Some older tablets may not report physical maximum for X/Y
coordinates. Set a default to prevent undefined resolution.
Signed-off-by: Ping Cheng <ping.cheng@wacom.com>
Link: https://lore.kernel.org/r/20230409164229.29777-1-ping.cheng@wacom.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Add reset GPIO support to the generic i2c-hid-of driver
This is necessary to make the Wacom digitizer on the Lenovo Yoga Book 1
(yb1-x90f/l) work and this will also allow consolidating the 2 specialized
i2c-hid-of-elan.c and i2c-hid-of-goodix.c drivers into the generic
i2c-hid-of driver.
For now the new "post-reset-deassert-delay-ms" property is only used on
x86/ACPI (non devicetree) devs. IOW it is not used in actual devicetree
files and the same goes for the reset GPIO. The devicetree-bindings
maintainers have requested properties like these to not be added to
the devicetree-bindings, so the new property + GPIO are deliberately
not added to the existing devicetree-bindings.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230413093625.71146-4-hdegoede@redhat.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
There are some x86 tablets / 2-in-1s which ship with Android as their
factory OS image. These have pretty broken ACPI tables, relying on
everything being hardcoded in the factory kernel image.
platform/x86/x86-android-tablets.c manually instantiates i2c-clients for
i2c devices on these tablets to make them work with the mainline kernel.
The Lenovo Yoga Book 1 (yb1-x90f/l) is such a 2-in-1. It has 2 I2C-HID
devices its main touchscreen and a Wacom digitizer. Its main touchscreen
can alternatively also be used in HiDeep's native protocol mode but
for the Wacom digitizer we really need I2C-HID.
This patch allows using i2c-hid-of on non OF platforms so that it can
bind to a non ACPI instantiated i2c_client on x86 for the Wacom digitizer.
Note the driver already has an "i2c-over-hid" i2c_device_id (rather then
an of_device_id).
Besides enabling building on non-OF platforms this also replaces
the only of_property_read_u32() call with device_property_read_u32() note
that other properties where already read using device_property_read_...().
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230413093625.71146-3-hdegoede@redhat.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
i2c_hid_of_probe() has a dev local variable pointing to &i2c_client->dev,
consistently use this everywhere in i2c_hid_of_probe().
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230413093625.71146-2-hdegoede@redhat.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
There is support for additional light sensors in the SFH firmware.
As a result, add support for additional light sensors.
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Based on num_hid_devices, each sensor device is initialized. If
"no sensors" is initialized, amd_sfh work initialization and scheduling
doesn’t make sense and returns EOPNOTSUPP to stop driver probe. Hence,
add a check for "no sensors" enabled to handle the special case.
Fixes: 93ce5e0231 ("HID: amd_sfh: Implement SFH1.1 functionality")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The initialization of SFH1.1 sensors may take some time. Hence, increase
sensor command timeouts in order to obtain status responses within a
maximum timeout.
Fixes: 93ce5e0231 ("HID: amd_sfh: Implement SFH1.1 functionality")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Misinterpreted the stop all command in SHF1.1 firmware. Therefore, it is
necessary to update the stop all command accordingly to disable all
sensors.
Fixes: 93ce5e0231 ("HID: amd_sfh: Implement SFH1.1 functionality")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
As soon as the system is booted after shutdown, the sensors may remain in
a weird state and fail to initialize. Therefore, all sensors should be
turned off during shutdown.
Fixes: 4f567b9f81 ("SFH: PCIe driver to add support of AMD sensor fusion hub")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
In order to start or stop sensors, the firmware command needs to be
changed to add an additional default subcommand value. For this reason,
add a subcommand value to enable or disable sensors accordingly.
Fixes: 93ce5e0231 ("HID: amd_sfh: Implement SFH1.1 functionality")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Set the USB interface "wireless_status" for the G935 receiver when
receiving battery notifications.
This will allow sound daemons such as Pipewire or PulseAudio to know
whether or not the headset is turned on and connected.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230302105555.51417-6-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Add the Logitech G935 headset that uses the HID++ protocol to the
list of supported devices.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230302105555.51417-3-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Use the compiler to force a 100-length array, rather than check the
length after the fact.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230302105555.51417-1-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Now that USB HID++ devices can gather a serial number that matches the
one that would be gathered when connected through a Unifying receiver,
remove the last difference by dropping the product ID as devices
usually have different product IDs when connected through USB or
Unifying.
For example, on the serials on a G903 wired/wireless mouse:
- Unifying before patch: 4067-e8-ce-cd-45
- USB before patch: c086-e8-ce-cd-45
- Unifying and USB after patch: e8-ce-cd-45
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230302130117.3975-2-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
For devices that support the 0x0003 feature (Device Information) version 4,
set the serial based on the output of that feature, rather than relying
on the usbhid code setting the USB serial.
This should allow the serial when connected through USB to (nearly)
match the one when connected through a unifying receiver.
For example, on the serials on a G903 wired/wireless mouse:
- Unifying: 4067-e8-ce-cd-45
- USB before patch: 017C385C3837
- USB after patch: c086-e8-ce-cd-45
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230302130117.3975-1-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
We need the fixes in here for testing, as well as the driver core
changes for documentation updates to build on.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
During warm reset device->fw_client is set to NULL. If a bus driver is
registered after this NULL setting and before new firmware clients are
enumerated by ISHTP, kernel panic will result in the function
ishtp_cl_bus_match(). This is because of reference to
device->fw_client->props.protocol_name.
ISH firmware after getting successfully loaded, sends a warm reset
notification to remove all clients from the bus and sets
device->fw_client to NULL. Until kernel v5.15, all enabled ISHTP kernel
module drivers were loaded right after any of the first ISHTP device was
registered, regardless of whether it was a matched or an unmatched
device. This resulted in all drivers getting registered much before the
warm reset notification from ISH.
Starting kernel v5.16, this issue got exposed after the change was
introduced to load only bus drivers for the respective matching devices.
In this scenario, cros_ec_ishtp device and cros_ec_ishtp driver are
registered after the warm reset device fw_client NULL setting.
cros_ec_ishtp driver_register() triggers the callback to
ishtp_cl_bus_match() to match ISHTP driver to the device and causes kernel
panic in guid_equal() when dereferencing fw_client NULL pointer to get
protocol_name.
Fixes: f155dfeaa4 ("platform/x86: isthp_eclite: only load for matching devices")
Fixes: facfe0a4fd ("platform/chrome: chros_ec_ishtp: only load for matching devices")
Fixes: 0d0cccc0fd ("HID: intel-ish-hid: hid-client: only load for matching devices")
Fixes: 44e2a58cb8 ("HID: intel-ish-hid: fw-loader: only load for matching devices")
Cc: <stable@vger.kernel.org> # 5.16+
Signed-off-by: Tanu Malhotra <tanu.malhotra@intel.com>
Tested-by: Shaunak Saha <shaunak.saha@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Now that we're not invoking kfunc destructors when the kptr in a map was
NULL, we no longer require NULL checks in many of our KF_RELEASE kfuncs.
This patch removes those NULL checks.
Signed-off-by: David Vernet <void@manifault.com>
Link: https://lore.kernel.org/r/20230325213144.486885-3-void@manifault.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
On some platforms there are some platform devices created with
invalid names. For example: "HID-SENSOR-INT-020b?.39.auto" instead
of "HID-SENSOR-INT-020b.39.auto"
This string include some invalid characters, hence it will fail to
properly load the driver which will handle this custom sensor. Also
it is a problem for some user space tools, which parses the device
names from ftrace and dmesg.
This is because the string, real_usage, is not NULL terminated and
printed with %s to form device name.
To address this, initialize the real_usage string with 0s.
Reported-and-tested-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217169
Fixes: 98c062e824 ("HID: hid-sensor-custom: Allow more custom iio sensors")
Cc: stable@vger.kernel.org
Suggested-by: Philipp Jungkamp <p.jungkamp@gmx.net>
Signed-off-by: Philipp Jungkamp <p.jungkamp@gmx.net>
Signed-off-by: Todd Brandt <todd.e.brandt@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Physical data for all kye tablets are collected from Windows driver, to
generate correct HID reports.
Signed-off-by: David Yang <mmyangfl@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The module pointer in class_create() never actually did anything, and it
shouldn't have been requred to be set as a parameter even if it did
something. So just remove it and fix up all callers of the function in
the kernel tree at the same time.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The tenkeyless version of the Realforce R2 has the same issue of the
full size one, the report fixup is needed to make n-key rollover
work instead of 6 key rollover
Signed-off-by: Alessandro Manca <crizan.git@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
I recently tested several old MacBooks and as far as I can tell, all
MacBooks that have an ISO keyboard have the tilde key quirk:
Product Model Year System CPU Shape Labels Country Quirky
============================================================================
05ac:021b A1181 2006 MacBook2,1 T5600 ISO British 13 Yes
05ac:021b A1181 2007 MacBook2,1 T7200 ISO Québécois 13 Yes
05ac:0229 A1181 2007 MacBook4,1 T8300 ANSI Usonian 33 No
05ac:022a A1181 2007 MacBook4,1 T8100 ISO English 13 Yes
05ac:022a A1181 2007 MacBook5,2 P7350 ISO Québécois 13 Yes
05ac:0237 A1278 2008 MacBook5,1 P7350 ISO Dutch 13 Yes
05ac:0237 A1278 2009 MacBook5,5 P7550 ISO British 13 Yes
The model number and year are from the laptop case. Since Apple printed
the same model and year on many different laptops, the system name (as
reported in the SMBIOS tables) and CPU form a more precise identifier.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Similar to many other devices using the Synopsys Designware Elantech
hardware, HP Spectre x360 13t-aw100 and 14t-ea100 report an empty
battery devices, supposedly for the active stylus.
Apply the HID_BATTERY_QUIRK_IGNORE quirk to ignore the battery reports
from these devices. Note that there are multiple versions of the panel
installed in the 14t-ea100.
Signed-off-by: Philippe Troin <phil@fifi.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Our HID device need KEY_CAMERA_FOCUS event to control camera,
but this event is non-existent in current HID driver.
So we add this event in hid-input.c.
Signed-off-by: fengqi <fengqi@xiaomi.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Remove duplicated descriptor structures and make it easier to discover
bugs.
Signed-off-by: David Yang <mmyangfl@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Genius digitizer tablets send incorrect (vendor-defined) report descriptors
by default. Descriptors for several models were added to override original
ones. Since they share the same structure and are handled by the same
Windows driver routine, extract the descriptor template and dynamic
parameters for easier new device adoption.
Signed-off-by: David Yang <mmyangfl@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
It's been discovered that BT controller disconnect events correlate to
erratic input report timestamp deltas.
In experimentation, it's been found that ensuring that multiple
timestamp deltas are consistent prior to transmitting a rumble packet
drastically reduces the occurence rate of BT disconnects.
Alter the joycon_enforce_subcmd_rate() function to use this new
approach.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Reviewed-by: Silvan Jegen <s.jegen@gmail.com
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Make sure that we never throw out the most recent rumble setting,
opting to overwrite the prior queue head instead. This prevents
instances where we could get rumble stuck on if there were an overrun at
the wrong time.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Reviewed-by: Silvan Jegen <s.jegen@gmail.com
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
To fully utilize the BT polling/refresh rate, a few input events
are sent together to reduce event delay. This causes issue to the
timestamp generated by input_sync since all the events in the same
packet would pretty much have the same timestamp. This patch inserts
time interval to the events by averaging the total time used for
sending the packet.
This decision was mainly based on observing the actual time interval
between each BT polling. The interval doesn't seem to be constant,
due to the network and system environment. So, using solutions other
than averaging doesn't end up with valid timestamps.
Signed-off-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Merge tag 'for-linus-2023030901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Benjamin Tissoires:
- fix potential out of bound write of zeroes in HID core with a
specially crafted uhid device (Lee Jones)
- fix potential use-after-free in work function in intel-ish-hid (Reka
Norman)
- selftests config fixes (Benjamin Tissoires)
- few device small fixes and support
* tag 'for-linus-2023030901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: intel-ish-hid: ipc: Fix potential use-after-free in work function
HID: logitech-hidpp: Add support for Logitech MX Master 3S mouse
HID: cp2112: Fix driver not registering GPIO IRQ chip as threaded
selftest: hid: fix hid_bpf not set in config
HID: uhid: Over-ride the default maximum data buffer value with our own
HID: core: Provide new max_buffer_size attribute to over-ride the default
When a reset notify IPC message is received, the ISR schedules a work
function and passes the ISHTP device to it via a global pointer
ishtp_dev. If ish_probe() fails, the devm-managed device resources
including ishtp_dev are freed, but the work is not cancelled, causing a
use-after-free when the work function tries to access ishtp_dev. Use
devm_work_autocancel() instead, so that the work is automatically
cancelled if probe fails.
Signed-off-by: Reka Norman <rekanorman@chromium.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work falls
into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be moved
into read-only memory (i.e. const) The recent work with Rust has
pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only making
things safer overall. This is the contuation of that work (started
last release with kobject changes) in moving struct bus_type to be
constant. We didn't quite make it for this release, but the
remaining patches will be finished up for the release after this
one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work
falls into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be
moved into read-only memory (i.e. const) The recent work with Rust
has pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only
making things safer overall. This is the contuation of that work
(started last release with kobject changes) in moving struct
bus_type to be constant. We didn't quite make it for this release,
but the remaining patches will be finished up for the release after
this one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems"
[ Geert Uytterhoeven points out that that last sentence isn't true, and
that there's a pending report that has a fix that is queued up - Linus ]
* tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits)
debugfs: drop inline constant formatting for ERR_PTR(-ERROR)
OPP: fix error checking in opp_migrate_dentry()
debugfs: update comment of debugfs_rename()
i3c: fix device.h kernel-doc warnings
dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place
Revert "driver core: add error handling for devtmpfs_create_node()"
Revert "devtmpfs: add debug info to handle()"
Revert "devtmpfs: remove return value of devtmpfs_delete_node()"
driver core: cpu: don't hand-override the uevent bus_type callback.
devtmpfs: remove return value of devtmpfs_delete_node()
devtmpfs: add debug info to handle()
driver core: add error handling for devtmpfs_create_node()
driver core: bus: update my copyright notice
driver core: bus: add bus_get_dev_root() function
driver core: bus: constify bus_unregister()
driver core: bus: constify some internal functions
driver core: bus: constify bus_get_kset()
driver core: bus: constify bus_register/unregister_notifier()
driver core: remove private pointer from struct bus_type
...
The CP2112 generates interrupts from a polling routine on a thread,
and can only support threaded interrupts. This patch configures the
gpiochip irq chip with this flag, disallowing consumers to request
a hard IRQ from this driver, which resulted in a segfault previously.
Signed-off-by: Danny Kaehn <kaehndan@gmail.com>
Link: https://lore.kernel.org/r/20230210170044.11835-1-kaehndan@gmail.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The default maximum data buffer size for this interface is UHID_DATA_MAX
(4k). When data buffers are being processed, ensure this value is used
when ensuring the sanity, rather than a value between the user provided
value and HID_MAX_BUFFER_SIZE (16k).
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Presently, when a report is processed, its proposed size, provided by
the user of the API (as Report Size * Report Count) is compared against
the subsystem default HID_MAX_BUFFER_SIZE (16k). However, some
low-level HID drivers allocate a reduced amount of memory to their
buffers (e.g. UHID only allocates UHID_DATA_MAX (4k) buffers), rending
this check inadequate in some cases.
In these circumstances, if the received report ends up being smaller
than the proposed report size, the remainder of the buffer is zeroed.
That is, the space between sizeof(csize) (size of the current report)
and the rsize (size proposed i.e. Report Size * Report Count), which can
be handled up to HID_MAX_BUFFER_SIZE (16k). Meaning that memset()
shoots straight past the end of the buffer boundary and starts zeroing
out in-use values, often resulting in calamity.
This patch introduces a new variable into 'struct hid_ll_driver' where
individual low-level drivers can over-ride the default maximum value of
HID_MAX_BUFFER_SIZE (16k) with something more sympathetic to the
interface.
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Merge tag 'for-linus-2023022201' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Benjamin Tissoires:
- HID-BPF infrastructure: this allows to start using HID-BPF. Note that
the mechanism to ship HID-BPF program through the kernel tree is
still not implemented yet (but is planned).
This should be a no-op for 99% of users. Also we are gaining
kselftests for the HID tree (Benjamin Tissoires)
- Some UAF fixes in workers when using uhid (Pietro Borrello & Benjamin
Tissoires)
- Constify hid_ll_driver (Thomas Weißschuh)
- Allow more custom IIO sensors through HID (Philipp Jungkamp)
- Logitech HID++ fixes for scroll wheel, protocol and debug (Bastien
Nocera)
- Some new device support: Steam Deck (Vicki Pfau), UClogic (José
Expósito), Logitech G923 Xbox Edition steering wheel (Walt Holman),
EVision keyboards (Philippe Valembois)
- other assorted code cleanups and fixes
* tag 'for-linus-2023022201' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (99 commits)
HID: mcp-2221: prevent UAF in delayed work
hid: bigben_probe(): validate report count
HID: asus: use spinlock to safely schedule workers
HID: asus: use spinlock to protect concurrent accesses
HID: bigben: use spinlock to safely schedule workers
HID: bigben_worker() remove unneeded check on report_field
HID: bigben: use spinlock to protect concurrent accesses
HID: logitech-hidpp: Add myself to authors
HID: logitech-hidpp: Retry commands when device is busy
HID: logitech-hidpp: Add more debug statements
HID: Add support for Logitech G923 Xbox Edition steering wheel
HID: logitech-hidpp: Add Signature M650
HID: logitech-hidpp: Remove HIDPP_QUIRK_NO_HIDINPUT quirk
HID: logitech-hidpp: Don't restart communication if not necessary
HID: logitech-hidpp: Add constants for HID++ 2.0 error codes
Revert "HID: logitech-hidpp: add a module parameter to keep firmware gestures"
HID: logitech-hidpp: Hard-code HID++ 1.0 fast scroll support
HID: i2c-hid: goodix: Add mainboard-vddio-supply
dt-bindings: HID: i2c-hid: goodix: Add mainboard-vddio-supply
HID: i2c-hid: goodix: Stop tying the reset line to the regulator
...
Initial support of HID-BPF (Benjamin Tissoires)
The history is a little long for this series, as it was intended to be
sent for v6.2. However some last minute issues forced us to postpone it
to v6.3.
Conflicts:
* drivers/hid/i2c-hid/Kconfig:
commit bf7660dab3 ("HID: stop drivers from selecting CONFIG_HID")
conflicts with commit 2afac81dd1 ("HID: fix I2C_HID not selected
when I2C_HID_OF_ELAN is")
the resolution is simple enough: just drop the "default" and "select"
lines as the new commit from Arnd is doing
- dev_dbg cleanup (Thomas Weißschuh)
- cleanup i2c-hid-acpi (Andy Shevchenko)
- goodix: revert/fixes for an actual production device compared to the
manufacturer sample (Douglas Anderson)
- constify hid_ll_driver (Thomas Weißschuh)
- map standard Battery System Charging to upower (José Expósito)
- couple of assorted fixes and new handling of HID usages (Jingyuan
Liang & Ronald Tschalär)
Highlights:
- AMD PMC: Improvements to aid s2idle debugging
- Dell WMI-DDV: hwmon support
- INT3472 camera sensor power-management: Improve privacy LED support
- Intel VSEC: Base TPMI (Topology Aware Register and PM Capsule Interface) support
- Mellanox: SN5600 and Nvidia L1 switch support
- Microsoft Surface Support: Various cleanups + code improvements
- tools/intel-speed-select: Various improvements
- Miscellaneous other cleanups / fixes
The following is an automated git shortlog grouped by driver:
Add include/linux/platform_data/x86 to MAINTAINERS:
- Add include/linux/platform_data/x86 to MAINTAINERS
Documentation/ABI:
- Add new attribute for mlxreg-io sysfs interfaces
Fix header inclusion in linux/platform_data/x86/soc.h:
- Fix header inclusion in linux/platform_data/x86/soc.h
HID:
- surface-hid: Use target-ID enum instead of hard-coding values
MAINTAINERS:
- dell-wmi-sysman: drop Divya Bharathi
- Add entry for TPMI driver
Merge tag 'ib-leds-led_get-v6.3' into HEAD:
- Merge tag 'ib-leds-led_get-v6.3' into HEAD
acerhdf:
- Drop empty platform remove function
apple_gmux:
- Drop no longer used ACPI_VIDEO Kconfig dependency
dell-ddv:
- Prefer asynchronous probing
- Add hwmon support
- Add "force" module param
- Replace EIO with ENOMSG
- Return error if buffer is empty
- Add support for interface version 3
dell-smo8800:
- Use min_t() for comparison and assignment
dell-wmi-sysman:
- Make kobj_type structure constant
hp-wmi:
- Ignore Win-Lock key events
int1092:
- Switch to use acpi_evaluate_dsm_typed()
int3472/discrete:
- add LEDS_CLASS dependency
- Drop unnecessary obj->type == string check
- Get the polarity from the _DSM entry
- Move GPIO request to skl_int3472_register_clock()
- Create a LED class device for the privacy LED
- Refactor GPIO to sensor mapping
intel:
- punit_ipc: Drop empty platform remove function
- oaktrail: Drop empty platform remove function
intel/pmc:
- Switch to use acpi_evaluate_dsm_typed()
leds:
- led-class: Add generic [devm_]led_get()
- led-class: Add __devm_led_get() helper
- led-class: Add led_module_get() helper
- led-class: Add missing put_device() to led_put()
media:
- v4l2-core: Make the v4l2-core code enable/disable the privacy LED if present
nvidia-wmi-ec-backlight:
- Add force module parameter
platform:
- mellanox: mlx-platform: Move bus shift assignment out of the loop
- mellanox: mlx-platform: Add mux selection register to regmap
- mellanox: Extend all systems with I2C notification callback
- mellanox: Split logic in init and exit flow
- mellanox: Split initialization procedure
- mellanox: Introduce support of new Nvidia L1 switch
- mellanox: Introduce support for next-generation 800GB/s switch
- mellanox: Cosmetic changes - rename to more common name
- mellanox: Change "reset_pwr_converter_fail" attribute
- mellanox: Introduce support for rack manager switch
platform/mellanox:
- mlxreg-hotplug: Allow more flexible hotplug events configuration
platform/surface:
- Switch to use acpi_evaluate_dsm_typed()
- aggregator: Rename top-level request functions to avoid ambiguities
- aggregator_registry: Fix target-ID of base-hub
- aggregator: Enforce use of target-ID enum in device ID macros
- dtx: Use target-ID enum instead of hard-coding values
- aggregator_tabletsw: Use target-ID enum instead of hard-coding values
- aggregator_hub: Use target-ID enum instead of hard-coding values
- aggregator: Add target and source IDs to command trace events
- aggregator: Improve documentation and handling of message target and source IDs
platform/x86/amd:
- pmc: Add line break for readability
- pmc: differentiate STB/SMU messaging prints
- pmc: Write dummy postcode into the STB DRAM
- pmc: Add num_samples message id support to STB
platform/x86/amd/pmf:
- Add depends on CONFIG_POWER_SUPPLY
platform/x86/intel:
- Intel TPMI enumeration driver
platform/x86/intel/tpmi:
- ADD tpmi external interface for tpmi feature drivers
- Process CPU package mapping
platform/x86/intel/vsec:
- Use mutex for ida_alloc() and ida_free()
- Support private data
- Enhance and Export intel_vsec_add_aux()
- Add TPMI ID
platform_data/mlxreg:
- Add field with mapped resource address
think-lmi:
- Make kobj_type structure constant
- Use min_t() for comparison and assignment
tools/power/x86/intel-speed-select:
- v1.14 release
- Adjust uncore max/min frequency
- Add Emerald Rapid quirk
- Fix display of uncore min frequency
- turbo-freq auto mode with SMT off
- cpufreq reads on offline CPUs
- Use null-terminated string
- Remove duplicate dup()
- Handle open() failure case
- Remove unused non_block flag
- Remove wrong check in set_isst_id()
x86/platform/uv:
- Make kobj_type structure constant
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Merge tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
- AMD PMC: Improvements to aid s2idle debugging
- Dell WMI-DDV: hwmon support
- INT3472 camera sensor power-management: Improve privacy LED support
- Intel VSEC: Base TPMI (Topology Aware Register and PM Capsule
Interface) support
- Mellanox: SN5600 and Nvidia L1 switch support
- Microsoft Surface Support: Various cleanups + code improvements
- tools/intel-speed-select: Various improvements
- Miscellaneous other cleanups / fixes
* tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (80 commits)
platform/x86: nvidia-wmi-ec-backlight: Add force module parameter
platform/x86/amd/pmf: Add depends on CONFIG_POWER_SUPPLY
platform/x86: dell-ddv: Prefer asynchronous probing
platform/x86: dell-ddv: Add hwmon support
Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
platform: mellanox: mlx-platform: Move bus shift assignment out of the loop
platform: mellanox: mlx-platform: Add mux selection register to regmap
platform_data/mlxreg: Add field with mapped resource address
platform/mellanox: mlxreg-hotplug: Allow more flexible hotplug events configuration
platform: mellanox: Extend all systems with I2C notification callback
platform: mellanox: Split logic in init and exit flow
platform: mellanox: Split initialization procedure
platform: mellanox: Introduce support of new Nvidia L1 switch
platform: mellanox: Introduce support for next-generation 800GB/s switch
platform: mellanox: Cosmetic changes - rename to more common name
platform: mellanox: Change "reset_pwr_converter_fail" attribute
platform: mellanox: Introduce support for rack manager switch
MAINTAINERS: dell-wmi-sysman: drop Divya Bharathi
x86/platform/uv: Make kobj_type structure constant
platform/x86: think-lmi: Make kobj_type structure constant
...
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Merge tag 'hyperv-next-signed-20230220' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- allow Linux to run as the nested root partition for Microsoft
Hypervisor (Jinank Jain and Nuno Das Neves)
- clean up the return type of callback functions (Dawei Li)
* tag 'hyperv-next-signed-20230220' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
x86/hyperv: Fix hv_get/set_register for nested bringup
Drivers: hv: Make remove callback of hyperv driver void returned
Drivers: hv: Enable vmbus driver for nested root partition
x86/hyperv: Add an interface to do nested hypercalls
Drivers: hv: Setup synic registers in case of nested root partition
x86/hyperv: Add support for detecting nested hypervisor
If the device is plugged/unplugged without giving time for mcp_init_work()
to complete, we might kick in the devm free code path and thus have
unavailable struct mcp_2221 while in delayed work.
Canceling the delayed_work item is enough to solve the issue, because
cancel_delayed_work_sync will prevent the work item to requeue itself.
Fixes: 960f9df7c6 ("HID: mcp2221: add ADC/DAC support via iio subsystem")
CC: stable@vger.kernel.org
Acked-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/r/20230215-wip-mcp2221-v2-1-109f71fd036e@redhat.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
bigben_probe() does not validate that the output report has the
needed report values in the first field.
A malicious device registering a report with one field and a single
value causes an head OOB write in bigben_worker() when
accessing report_field->value[1] to report_field->value[7].
Use hid_validate_values() which takes care of all the needed checks.
Fixes: 256a90ed9e ("HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230211-bigben-oob-v1-1-d2849688594c@diag.uniroma1.it
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Use spinlocks to deal with workers introducing a wrapper
asus_schedule_work(), and several spinlock checks.
Otherwise, asus_kbd_backlight_set() may schedule led->work after the
structure has been freed, causing a use-after-free.
Fixes: af22a610bc ("HID: asus: support backlight on USB keyboards")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230125-hid-unregister-leds-v4-5-7860c5763c38@diag.uniroma1.it
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Use spinlocks to deal with workers introducing a wrapper
bigben_schedule_work(), and several spinlock checks.
Otherwise, bigben_set_led() may schedule bigben->worker after the
structure has been freed, causing a use-after-free.
Fixes: 4eb1b01de5 ("HID: hid-bigbenff: fix race condition for scheduled work during removal")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230125-hid-unregister-leds-v4-3-7860c5763c38@diag.uniroma1.it
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
bigben_worker() checks report_field to be non-NULL.
The check has been added in commit
918aa1ef10 ("HID: bigbenff: prevent null pointer dereference")
to prevent a NULL pointer crash.
However, the true root cause was a missing check for output
reports, patched in commit
c7bf714f87 ("HID: check empty report_list in bigben_probe()"),
where the type-confused report list_entry was overlapping with
a NULL pointer, which was then causing the crash.
Fixes: 918aa1ef10 ("HID: bigbenff: prevent null pointer dereference")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230125-hid-unregister-leds-v4-2-7860c5763c38@diag.uniroma1.it
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
bigben driver has a worker that may access data concurrently.
Proct the accesses using a spinlock.
Fixes: 256a90ed9e ("HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230125-hid-unregister-leds-v4-1-7860c5763c38@diag.uniroma1.it
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
As discussed with HID maintainer Benjamin Tissoires, add myself to the
authors list and MAINTAINERS file.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230209154916.462158-2-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Handle the busy error coming from the device or receiver. The
documentation says a busy error can be returned when:
"
Device (or receiver) cannot answer immediately to this request
for any reason i.e:
- already processing a request from the same or another SW
- pipe full
"
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230209154916.462158-1-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Add support for HID++ over Bluetooth for the Logitech Signature
M650 mouse. It comes with a dongle but can also be used over Bluetooth
without one.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20220404100311.3304-1-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
HIDPP_QUIRK_NO_HIDINPUT isn't used by any devices but still happens to
work as HIDPP_QUIRK_DELAYED_INIT is defined to the same value. Remove
HIDPP_QUIRK_NO_HIDINPUT and use HIDPP_QUIRK_DELAYED_INIT everywhere
instead.
Tested on a T650 which requires that quirk, and a number of unifying and
Bluetooth devices that don't.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230125121723.3122-2-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Don't stop and restart communication with the device unless we need to
modify the connect flags used because of a device quirk.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230125121723.3122-1-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Now that we're in 2022, and the majority of desktop environments can and
should support touchpad gestures through libinput, remove the legacy
module parameter that made it possible to use gestures implemented in
firmware.
This will eventually allow simplifying the driver's initialisation code.
This reverts commit 9188dbaed6.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20221220154345.474596-1-hadess@hadess.net
HID++ 1.0 devices only export whether Fast Scrolling is enabled, not
whether they are capable of it. Reinstate the original quirks for the 3
supported mice so fast scrolling works again on those devices.
Fixes: 908d325e16 ("HID: logitech-hidpp: Detect hi-res scrolling support")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216903
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230116130937.391441-1-hadess@hadess.net
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Merge tag 'for-linus-2023020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Benjamin Tissoires:
- fix potential infinite loop with a badly crafted HID device (Xin
Zhao)
- fix regression from 6.1 in USB logitech devices potentially making
their mouse wheel not working (Bastien Nocera)
- clean up in AMD sensors, which fixes a long time resume bug (Mario
Limonciello)
- few device small fixes and quirks
* tag 'for-linus-2023020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: Ignore battery for ELAN touchscreen 29DF on HP
HID: amd_sfh: if no sensors are enabled, clean up
HID: logitech: Disable hi-res scrolling on USB
HID: core: Fix deadloop in hid_apply_multiplier.
HID: Ignore battery for Elan touchscreen on Asus TP420IA
HID: elecom: add support for TrackBall 056E:011C
As talked about in the patch ("dt-bindings: HID: i2c-hid: goodix: Add
mainboard-vddio-supply") we may need to power up a 1.8V rail on the
host associated with touchscreen IO. Let's add support in the driver
for it.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/20230206184744.6.Ic234b931025d1f920ce9e06fff294643943a65ad@changeid
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
In commit 18eeef46d3 ("HID: i2c-hid: goodix: Tie the reset line to
true state of the regulator"), we started tying the reset line of
Goodix touchscreens to the regulator.
The primary motivation for that patch was some pre-production hardware
(specifically sc7180-trogdor-homestar) where it was proposed to hook
the touchscreen's main 3.3V power rail to an always-on supply. In such
a case, when we turned "off" the touchscreen in Linux it was bad to
assert the "reset" GPIO because that was causing a power drain. The
patch accomplished that goal and did it in a general sort of way that
didn't require special properties to be added in the device tree for
homestar.
It turns out that the design of using an always-on power rail for the
touchscreen was rejected soon after the patch was written and long
before sc7180-trogdor-homestar went into production. The final design
of homestar actually fully separates the rail for the touchscreen and
the display panel and both can be powered off and on. That means that
the original motivation for the feature is gone.
There are 3 other users of the goodix i2c-hid driver in mainline.
I'll first talk about 2 of the other users in mainline: coachz and
mrbland. On both coachz and mrbland the touchscreen power and panel
power _are_ shared. That means that the patch to tie the reset line to
the true state of the regulator _is_ doing something on those
boards. Specifically, the patch reduced power consumption by tens of
mA in the case where we turned the touchscreen off but left the panel
on. Other than saving a small bit of power, the patch wasn't truly
necessary. That being said, even though a small bit of power was saved
in the state of "panel on + touchscreen off", that's not actually a
state we ever expect to be in, except perhaps for very short periods
of time at boot or during suspend/resume. Thus, the patch is truly not
necessary. It should be further noted that, as documented in the
original patch, the current code still didn't optimize power for every
corner case of the "shared rail" situation.
The last user in mainline was very recently added: evoker. Evoker is
actually the motivation for me removing this bit of code. It turns out
that for evoker we need to manage a second power rail for IO to the
touchscreen. Trying to fit the management of this IO rail into the
regulator notifiers turns out to be extremely hard. To avoid lockdep
splats you shouldn't enable/disable other regulators in regulator
notifiers and trying to find a way around this was going to be fairly
difficult.
Given the lack of any true motivation to tie the reset line to the
regulator, lets go back to the simpler days and remove the code. This
is, effectively, a revert of commit bdbc65eb77 ("HID: i2c-hid:
goodix: Fix a lockdep splat"), commit 25ddd7cfc5 ("HID: i2c-hid:
goodix: Use the devm variant of regulator_register_notifier()"), and
commit 18eeef46d3 ("HID: i2c-hid: goodix: Tie the reset line to true
state of the regulator").
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20230206184744.4.I085b32b6140c7d1ac4e7e97b712bff9dd5962b62@changeid
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
In certain circumstances, such as when creating I2C-connected HID
devices, we want to pass and retain some quirks (axis inversion, etc).
The source of such quirks may be device tree, or DMI data, or something
else not readily available to the HID core itself and therefore cannot
be reconstructed easily. To allow this, introduce "initial_quirks" field
in hid_device structure and use it when determining the final set of
quirks.
This fixes the problem with i2c-hid setting up device-tree sourced
quirks too late and losing them on device rebind, and also allows to
sever the tie between hid-code and i2c-hid when applying DMI-based
quirks.
Fixes: b60d3c803d ("HID: i2c-hid-of: Expose the touchscreen-inverted properties")
Fixes: a2f416bf06 ("HID: multitouch: Add quirks for flipped axes")
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Tested-by: Allen Ballway <ballway@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Alistair Francis <alistair@alistair23.me>
Link: https://lore.kernel.org/r/Y+LYwu3Zs13hdVDy@google.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
For now only supports one model and only filters out bogus reports sent
when the keyboard has been configured through hidraw.
Without this, as events are not released, soft repeat floods userspace
with unknown key events.
Signed-off-by: Philippe Valembois <lephilousophe@gmail.com>
Link: https://lore.kernel.org/r/20230125211511.12266-1-lephilousophe@gmail.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The touchscreen reports a battery status of 0% and jumps to 1% when a
stylus is used. The device ID was added and the battery ignore quirk was
enabled for it.
Signed-off-by: Luka Guzenko <l.guzenko@web.de>
Link: https://lore.kernel.org/r/20230120223741.3007-1-l.guzenko@web.de
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The custom "debug" module parameter is fairly inflexible.
It can only manage debugging for all calls dbg_hid() at the same time.
Furthermore it creates a mismatch between calls to hid_dbg() which can
be managed by CONFIG_DYNAMIC_DEBUG and dbg_hid() which is managed by the
module parameter.
Furthermore the change to pr_debug() allows the debugging statements to
be completely compiled-out if desired.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Tested-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20221223-hid-dbg-v1-1-5dcf8794f7f9@weissschuh.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Since commit 52d2253469 ("HID: Make lowlevel driver structs const")
the lowlevel HID drivers are only exposed as const.
Take advantage of this to constify the underlying structure, too.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230130-hid-const-ll-driver-v1-6-3fc282b3b1d0@weissschuh.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Since commit 52d2253469 ("HID: Make lowlevel driver structs const")
the lowlevel HID drivers are only exposed as const.
Take advantage of this to constify the underlying structure, too.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230130-hid-const-ll-driver-v1-5-3fc282b3b1d0@weissschuh.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Since commit 52d2253469 ("HID: Make lowlevel driver structs const")
the lowlevel HID drivers are only exposed as const.
Take advantage of this to constify the underlying structure, too.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230130-hid-const-ll-driver-v1-4-3fc282b3b1d0@weissschuh.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Since commit 52d2253469 ("HID: Make lowlevel driver structs const")
the lowlevel HID drivers are only exposed as const.
Take advantage of this to constify the underlying structure, too.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230130-hid-const-ll-driver-v1-3-3fc282b3b1d0@weissschuh.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Since commit 52d2253469 ("HID: Make lowlevel driver structs const")
the lowlevel HID drivers are only exposed as const.
Take advantage of this to constify the underlying structure, too.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Wei Liu <wei.liu@kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230130-hid-const-ll-driver-v1-2-3fc282b3b1d0@weissschuh.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Since commit 52d2253469 ("HID: Make lowlevel driver structs const")
the lowlevel HID drivers are only exposed as const.
Take advantage of this to constify the underlying structure, too.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230130-hid-const-ll-driver-v1-1-3fc282b3b1d0@weissschuh.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
It was reported that commit b300667b33 ("HID: amd_sfh: Disable the
interrupt for all command") had caused increased resume time on HP Envy
x360.
Before this commit 3 sensors were reported, but they were not actually
functional. After this commit the sensors are no longer reported, but
also the resume time increased.
To avoid this problem explicitly look for the number of disabled sensors.
If all the sensors are disabled, clean everything up.
Fixes: b300667b33 ("HID: amd_sfh: Disable the interrupt for all command")
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2115
Reported-by: Xaver Hugl <xaver.hugl@gmail.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Link: https://lore.kernel.org/r/20230203220850.13924-1-mario.limonciello@amd.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
On some Logitech mice, such as the G903, and possibly the G403, the HID
events are generated on a different interface to the HID++ one.
If we enable hi-res through the HID++ interface, the HID interface
wouldn't know anything about it, and handle the events as if they were
regular scroll events, making the mouse unusable.
Disable hi-res scrolling on those devices until we implement scroll
events through HID++.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Tobias Klausmann <klausman@schwarzvogel.de>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216885
Fixes: 908d325e16 ("HID: logitech-hidpp: Detect hi-res scrolling support")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230203101800.139380-1-hadess@hadess.net
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The initial value of hid->collection[].parent_idx if 0. When
Report descriptor doesn't contain "HID Collection", the value
remains as 0.
In the meanwhile, when the Report descriptor fullfill
all following conditions, it will trigger hid_apply_multiplier
function call.
1. Usage page is Generic Desktop Ctrls (0x01)
2. Usage is RESOLUTION_MULTIPLIER (0x48)
3. Contain any FEATURE items
The while loop in hid_apply_multiplier will search the top-most
collection by searching parent_idx == -1. Because all parent_idx
is 0. The loop will run forever.
There is a Report Descriptor triggerring the deadloop
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x48, // Usage (0x48)
0x95, 0x01, // Report Count (1)
0x75, 0x08, // Report Size (8)
0xB1, 0x01, // Feature
Signed-off-by: Xin Zhao <xnzhao@google.com>
Link: https://lore.kernel.org/r/20230130212947.1315941-1-xnzhao@google.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The Steam Deck includes a new report that allows for emulating XInput-style
rumble motors with the Deck's actuators. This adds support for passing these
values directly to the Deck.
Signed-off-by: Vicki Pfau <vi@endrift.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20230126030126.895670-3-vi@endrift.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Add preliminary support for the Steam Deck's controller interface. Currently,
this only supports the controller inputs and toggling lizard mode (Valve's name
for a hardware kb/m emulation mode). It does not support any of the advanced
features, such as the motion sensors or force-feedback.
The Steam Deck also includes a heartbeat for lizard mode that switches it back
on if no reports have been received within a few milliseconds. The official
Steam client handles this by sending a handful of configuration reports every
few ms, so we copy this behavior by sending configuration reports to disable
the mouse and reset the digital mappings every 5ms. As this isn't needed for
the older Steam Controller, this is only done on the Steam Deck.
Signed-off-by: Vicki Pfau <vi@endrift.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20230126030126.895670-2-vi@endrift.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
We currently have a struct ssam_request_sync and a function
ssam_request_sync(). While this is valid C, there are some downsides to
it.
One of these is that current Sphinx versions (>= 3.0) cannot
disambiguate between the two (see disucssion and pull request linked
below). It instead emits a "WARNING: Duplicate C declaration" and links
for the struct and function in the resulting documentation link to the
same entry (i.e. both to either function or struct documentation)
instead of their respective own entries.
While we could just ignore that and wait for a fix, there's also a point
to be made that the current naming can be somewhat confusing when
searching (e.g. via grep) or trying to understand the levels of
abstraction at play:
We currently have struct ssam_request_sync and associated functions
ssam_request_sync_[alloc|free|init|wait|...]() operating on this struct.
However, function ssam_request_sync() is one abstraction level above
this. Similarly, ssam_request_sync_with_buffer() is not a function
operating on struct ssam_request_sync, but rather a sibling to
ssam_request_sync(), both using the struct under the hood.
Therefore, rename the top level request functions:
ssam_request_sync() -> ssam_request_do_sync()
ssam_request_sync_with_buffer() -> ssam_request_do_sync_with_buffer()
ssam_request_sync_onstack() -> ssam_request_do_sync_onstack()
Link: https://lore.kernel.org/all/085e0ada65c11da9303d07e70c510dc45f21315b.1656756450.git.mchehab@kernel.org/
Link: https://github.com/sphinx-doc/sphinx/pull/8313
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221220175608.1436273-2-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Similar to the target category (TC), the target ID (TID) can be one
value out of a small number of choices, given in enum ssam_ssh_tid.
In the device ID macros, SSAM_SDEV() and SSAM_VDEV() we already use text
expansion to, both, remove some textual clutter for the target category
values and enforce that the value belongs to the known set. Now that we
know the names for the target IDs, use the same trick for them as well.
Also rename the SSAM_ANY_x macros to SSAM_SSH_x_ANY to better fit in.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20221202223327.690880-9-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Instead of hard-coding the target ID, use the respective enum
ssam_ssh_tid value.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221202223327.690880-8-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The uevent() callback in struct bus_type should not be modifying the
device that is passed into it, so mark it as a const * and propagate the
function signature changes out into all relevant subsystems that use
this callback.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230111113018.459199-16-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This device has a touchscreen thats report a battery even if it doesn't
have one.
Ask Linux to ignore the battery so it will not always report it as low.
[jkosina@suse.cz: fix whitespace damage]
Signed-off-by: Marco Rodolfi <marco.rodolfi@tuta.io>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Make function buttons on ELECOM M-HT1DRBK trackball mouse work. This model
has two devices with different device IDs (010D and 011C). Both of
them misreports the number of buttons as 5 in the report descriptor, even
though they have 8 buttons. hid-elecom overwrites the report to fix them,
but supports only on 010D and does not work on 011C. This patch fixes
011C in the similar way but with specialized position parameters.
In fact, it is sufficient to rewrite only 17th byte (05 -> 08). However I
followed the existing way.
Signed-off-by: Takahiro Fujii <fujii@xaxxi.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Merge tag 'for-linus-2023011801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- fixes for potential empty list handling in HID core (Pietro Borrello)
- fix for NULL pointer dereference in betop driver that could be
triggered by malicious device (Pietro Borrello)
- fixes for handling calibration data preventing division by zero in
Playstation driver (Roderick Colenbrander)
- fix for memory leak on error path in amd-sfh driver (Basavaraj
Natikar)
- other few assorted small fixes and device ID-specific handling
* tag 'for-linus-2023011801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: betop: check shape of output reports
HID: playstation: sanity check DualSense calibration data.
HID: playstation: sanity check DualShock4 calibration data.
HID: uclogic: Add support for XP-PEN Deco 01 V2
HID: revert CHERRY_MOUSE_000C quirk
HID: check empty report_list in bigben_probe()
HID: check empty report_list in hid_validate_values()
HID: amd_sfh: Fix warning unwind goto
HID: intel_ish-hid: Add check for ishtp_dma_tx_map
Given that our initial BPF program is not using any kfuncs anymore,
we can reorder the initialization to first try to load it and then
register the kfuncs. This has the advantage of not exporting kfuncs
when HID-BPF is not working.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
We don't need to watch for calls on bpf_prog_put_deferred(), so remove
that from the entrypoints.bpf.c file.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Previously, HID-BPF was relying on a bpf tracing program to be notified
when a program was released from userspace. This is error prone, as
LLVM sometimes inline the function and sometimes not.
So instead of messing up with the bpf prog ref count, we can use the
bpf_link concept which actually matches exactly what we want:
- a bpf_link represents the fact that a given program is attached to a
given HID device
- as long as the bpf_link has fd opened (either by the userspace program
still being around or by pinning the bpf object in the bpffs), the
program stays attached to the HID device
- once every user has closed the fd, we get called by
hid_bpf_link_release() that we no longer have any users, and we can
disconnect the program to the device in 2 passes: first atomically clear
the bit saying that the link is active, and then calling release_work in
a scheduled work item.
This solves entirely the problems of BPF tracing not showing up and is
definitely cleaner.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
betopff_init() only checks the total sum of the report counts for each
report field to be at least 4, but hid_betopff_play() expects 4 report
fields.
A device advertising an output report with one field and 4 report counts
would pass the check but crash the kernel with a NULL pointer dereference
in hid_betopff_play().
Fixes: 52cd7785f3 ("HID: betop: add drivers/hid/hid-betopff.c")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The bias for the gyroscope is not used correctly. The sensor bias
needs to be used in calculation of the 'sensivity' instead of being
an offset.
In practice this has little input on the values as the bias values
tends to be small (+/- 20).
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The bias for the gyroscope is not used correctly. The sensor bias
needs to be used in calculation of the 'sensivity' instead of being
an offset.
In practice this has little input on the values as the bias values
tends to be small (+/- 20).
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Make sure calibration values are defined to prevent potential kernel
crashes. This fixes a hypothetical issue for virtual or clone devices
inspired by a similar fix for DS4.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Some DualShock4 devices report invalid calibration data resulting
in kernel oopses due to division by zero during report handling.
The devices affected generally appear to be clone devices, which don't
implement all reports properly and don't populate proper calibration
data. The issue may have been seen on an official device with erased
calibration reports.
This patch prevents the crashes by essentially disabling calibration
when invalid values are detected.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Tested-by: Alain Carlucci <alain.carlucci@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Certain touchscreen devices, such as the ELAN9034, are oriented
incorrectly and report touches on opposite points on the X and Y axes.
For example, a 100x200 screen touched at (10,20) would report (90, 180)
and vice versa.
This is fixed by adding device quirks to transform the touch points
into the correct spaces, from X -> MAX(X) - X, and Y -> MAX(Y) - Y.
Signed-off-by: Allen Ballway <ballway@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Unify ACPI ID tables format by:
- surrounding HID by spaces
- dropping unnecessary driver_data assignment to 0
- dropping comma at the terminator entry
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The driver is enumerated on ACPI platforms, so adev is valid.
Since there is no valid I²C ID table provided, there is no
possibility to bind a device to this driver via user space.
Hence, drop unneeded NULL check of adev.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
According to HUTRR39 logical sensor devices may be nested inside
physical collections or may be specified in multiple top-level
application collections (see page 59, strategies 1 and 2). However,
the current code was only recognizing those with physical collections.
This issue turned up in the T2 MacBook Pros which define the ALS in
a top-level application collection.
Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Now that hid-playstation provides DualShock4 support, remove
DualShock4 support from hid-sony as it is redundant.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Commit b8a926bea8 ("kunit: Introduce KUNIT_EXPECT_MEMEQ and
KUNIT_EXPECT_MEMNEQ macros") introduced a new macro to compare blocks of
memory and, if the test fails, print the result in a human friendly
format. For example, this is the output of a test failure:
Expected res == params->expected, but
res ==
01 02 aa 00 00 00 03 bb 00 <00> 00 04 05
params->expected ==
01 02 aa 00 00 00 03 bb 00 <01> 00 04 05
Use this new macro to replace KUNIT_EXPECT_EQ + memcmp.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The XP-PEN Deco Pro MW is a UGEE v2 device with a frame with 8 buttons,
a bitmap dial and a mouse. Its pen has 2 buttons, supports tilt and
pressure.
It can be connected using a USB cable or, to use it in wireless mode,
using a USB Bluetooth dongle. When it is connected in wireless mode the
device battery is used to power it.
All the pieces to support it are already in place. Add its ID and
quirks in order to support the device.
Link: https://github.com/DIGImend/digimend-kernel-drivers/issues/622
Tested-by: Andreas Grosse <andig.mail@t-online.de>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The XP-PEN Deco Pro SW is a UGEE v2 device with a frame with 8 buttons,
a bitmap dial and a mouse; however, the UCLOGIC_MOUSE_FRAME_QUIRK is
required because it reports an incorrect frame type. Its pen has 2
buttons, supports tilt and pressure.
It can be connected using a USB cable or, to use it in wireless mode,
using a USB Bluetooth dongle. When it is connected in wireless mode the
device battery is used to power it.
All the pieces to support it are already in place. Add its ID and
quirks in order to support the device.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
UGEEv2 tablets with battery can be connected using a USB cable or a USB
Bluetooth dongle.
When the Bluetooth dongle is used, the connection to that tablet can be
lost because the tablet is out of the range of the receiver or because
it was switched off using the switch placed in the back of the tablet's
frame.
After losing connection, the tablet is able to reconnect automatically
and its firmware sends a special packet indicating that the device was
reconnected. In response to this packet, the tablet needs to receive the
same array of magic data it expects on probe to enable its interfaces.
This patch implements a generic mechanism to hook raw events and
schedule a work to perform any custom action.
Tested-by: Mia Kanashi <chad@redpilled.dev>
Tested-by: Andreas Grosse <andig.mail@t-online.de>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
A fututure patch will need to use the array of magic data that the
UGEEv2 devices expect on probe and the endpoint number. Move them to a
common place.
Refactor, no functional changes.
Tested-by: Mia Kanashi <chad@redpilled.dev>
Tested-by: Andreas Grosse <andig.mail@t-online.de>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Some UGEE v2 tablets have a wireless version with an internal battery
and their firmware is able to report their battery level.
However, there was not found a field on their descriptor indicating
whether the tablet has battery or not, making it mandatory to classify
such devices through the UCLOGIC_BATTERY_QUIRK quirk.
Tested-by: Mia Kanashi <chad@redpilled.dev>
Tested-by: Andreas Grosse <andig.mail@t-online.de>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The report descriptor used to get information about UGEE v2 devices is
incorrect in the XP-PEN Deco Pro SW. It indicates that the device frame
is of type UCLOGIC_PARAMS_FRAME_BUTTONS but the device has a frame of
type UCLOGIC_PARAMS_FRAME_MOUSE.
Here is the original report descriptor:
0x0e 0x03 0xc8 0xb3 0x34 0x65 0x08 0x00 0xff 0x1f 0xd8 0x13 0x00 0x00
^ This byte should be 2
Add a quirk to be able to fix the reported frame type.
Tested-by: Mia Kanashi <chad@redpilled.dev>
Tested-by: Andreas Grosse <andig.mail@t-online.de>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The XP-PEN Deco 01 V2 is a UGEE v2 device with a frame with 8 buttons.
Its pen has 2 buttons, supports tilt and pressure.
Add its ID in order to support the device.
Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/839
Tested-by: Mark Waddoups <mwaddoups@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Only two locations in i2c-hid are using the standard dev_dbg() APIs.
The rest are all using the custom i2c_hid_dbg(), which in turn uses
dev_dbg().
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Instead of implementing a custom form of dynamic debugging we can use
the standard debugging APIs. If the kernel is built with
CONFIG_DYNAMIC_DEBUG this will be more discoverable and featureful.
Also the previous module parameter "debug" is read-only so it can't
actually be enabled.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This partially reverts commit f6d910a89a ("HID: usbhid: Add ALWAYS_POLL quirk
for some mice"), as it turns out to break reboot on some platforms for reason
yet to be understood.
Fixes: f6d910a89a ("HID: usbhid: Add ALWAYS_POLL quirk for some mice")
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Since commit fc7a6209d5 ("bus: Make remove callback return
void") forces bus_type::remove be void-returned, it doesn't
make much sense for any bus based driver implementing remove
callbalk to return non-void to its caller.
As such, change the remove function for Hyper-V VMBus based
drivers to return void.
Signed-off-by: Dawei Li <set_pte_at@outlook.com>
Link: https://lore.kernel.org/r/TYCP286MB2323A93C55526E4DF239D3ACCAFA9@TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Nothing is nor should be modifying these structs so mark them as const.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: David Rheinsberg <david.rheinsberg@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
As there are no external users this implementation detail does not need
to be exported.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: David Rheinsberg <david.rheinsberg@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
As there are no external users this implementation detail does not need
to be exported.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: David Rheinsberg <david.rheinsberg@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
As no external users remain this implementation detail does not need to
be exported anymore.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: David Rheinsberg <david.rheinsberg@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
By making hid_is_usb() a non-inline function the lowlevel usbhid driver
does not have to be exported anymore.
Also mark the argument as const as it is not modified.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: David Rheinsberg <david.rheinsberg@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Don't open code existing functionality.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: David Rheinsberg <david.rheinsberg@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a check for empty report_list in bigben_probe().
The missing check causes a type confusion when issuing a list_entry()
on an empty report_list.
The problem is caused by the assumption that the device must
have valid report_list. While this will be true for all normal HID
devices, a suitably malicious device can violate the assumption.
Fixes: 256a90ed9e ("HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a check for empty report_list in hid_validate_values().
The missing check causes a type confusion when issuing a list_entry()
on an empty report_list.
The problem is caused by the assumption that the device must
have valid report_list. While this will be true for all normal HID
devices, a suitably malicious device can violate the assumption.
Fixes: 1b15d2e5b8 ("HID: core: fix validation of report id 0")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
struct hid_sensor_custom_properties is currently 384 bytes big, which consumes
too much stack space for no good reason. Make it dynamically allocated.
Fixes: 98c062e824 ("HID: hid-sensor-custom: Allow more custom iio sensors")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
As the kcalloc may return NULL pointer,
it should be better to check the ishtp_dma_tx_map
before use in order to avoid NULL pointer dereference.
Fixes: 3703f53b99 ("HID: intel_ish-hid: ISH Transport layer")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Due to several bugs caused by timers being re-armed after they are
shutdown and just before they are freed, a new state of timers was added
called "shutdown". After a timer is set to this state, then it can no
longer be re-armed.
The following script was run to find all the trivial locations where
del_timer() or del_timer_sync() is called in the same function that the
object holding the timer is freed. It also ignores any locations where
the timer->function is modified between the del_timer*() and the free(),
as that is not considered a "trivial" case.
This was created by using a coccinelle script and the following
commands:
$ cat timer.cocci
@@
expression ptr, slab;
identifier timer, rfield;
@@
(
- del_timer(&ptr->timer);
+ timer_shutdown(&ptr->timer);
|
- del_timer_sync(&ptr->timer);
+ timer_shutdown_sync(&ptr->timer);
)
... when strict
when != ptr->timer
(
kfree_rcu(ptr, rfield);
|
kmem_cache_free(slab, ptr);
|
kfree(ptr);
)
$ spatch timer.cocci . > /tmp/t.patch
$ patch -p1 < /tmp/t.patch
Link: https://lore.kernel.org/lkml/20221123201306.823305113@linutronix.de/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Pavel Machek <pavel@ucw.cz> [ LED ]
Acked-by: Kalle Valo <kvalo@kernel.org> [ wireless ]
Acked-by: Paolo Abeni <pabeni@redhat.com> [ networking ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Compiling this driver without setting "CONFIG_SONY_FF" generates the
following warning:
drivers/hid/hid-sony.c:2358:20: warning: unused function
'sony_send_output_report' [-Wunused-function]
static inline void sony_send_output_report(struct sony_sc *sc)
^
1 warning generated.
Add the missing preprocessor check to fix it.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
I no longer work for Plantronics (aka Poly, aka HP) and do not have
access to the headsets in order to test. However, as noted by Maxim,
the other 32xx models that share the same base code set as the 3220
would need the same quirk. This patch adds the PIDs for the rest of
the Blackwire 32XX product family that require the quirk.
Plantronics Blackwire 3210 Series (047f:c055)
Plantronics Blackwire 3215 Series (047f:c057)
Plantronics Blackwire 3225 Series (047f:c058)
Quote from previous patch by Maxim Mikityanskiy
Plantronics Blackwire 3220 Series (047f:c056) sends HID reports twice
for each volume key press. This patch adds a quirk to hid-plantronics
for this product ID, which will ignore the second volume key press if
it happens within 5 ms from the last one that was handled.
The patch was tested on the mentioned model only, it shouldn't affect
other models, however, this quirk might be needed for them too.
Auto-repeat (when a key is held pressed) is not affected, because the
rate is about 3 times per second, which is far less frequent than once
in 5 ms.
End quote
Signed-off-by: Terry Junge <linuxhid@cosmicgizmosystems.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The HID descriptor of this device contains two mouse collections, one
for mouse emulation and the other for the trackpoint.
Both collections get merged and, because the first one defines X and Y,
the movemenent events reported by the trackpoint collection are
ignored.
Set the MT_CLS_WIN_8_FORCE_MULTI_INPUT class for this device to be able
to receive its reports.
This fix is similar to/based on commit 40d5bb8737 ("HID: multitouch:
enable multi-input as a quirk for some devices").
Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/825
Reported-by: Akito <the@akito.ooo>
Tested-by: Akito <the@akito.ooo>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Battery status is reported for the HP Envy x360 eu0009nv stylus even
though it does not have battery.
Prevent it from always reporting the battery as low (1%).
Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/823
Reported-by: Ioannis Iliopoulos <jxftw2424@gmail.com>
Tested-by: Ioannis Iliopoulos <jxftw2424@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
HUTRR110 added a new usage code for a key that is supposed to
mute/unmute microphone system-wide.
Map the new usage code(0x01 0xa9) to keycode KEY_MICMUTE.
Additionally hid-debug is adjusted to recognize this keycode as well.
Signed-off-by: Jingyuan Liang <jingyliang@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
HID descriptors with Battery System (0x85) Charging (0x44) usage are
ignored and POWER_SUPPLY_STATUS_DISCHARGING is always reported to user
space, even when the device is charging.
Map this usage and when it is reported set the right charging status.
In addition, add KUnit tests to make sure that the charging status is
correctly set and reported. They can be run with the usual command:
$ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/hid
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Some Wacom devices have a special "bootloader" mode that is used for
firmware flashing. When operating in this mode, the device cannot be
used for input, and the HID descriptor is not able to be processed by
the driver. The driver generates an "Unknown device_type" warning and
then returns an error code from wacom_probe(). This is a problem because
userspace still needs to be able to interact with the device via hidraw
to perform the firmware flash.
This commit adds a non-generic device definition for 056a:0094 which
is used when devices are in "bootloader" mode. It marks the devices
with a special BOOTLOADER type that is recognized by wacom_probe() and
wacom_raw_event(). When we see this type we ensure a hidraw device is
created and otherwise keep our hands off so that userspace is in full
control.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Tested-by: Tatsunosuke Tobita <tatsunosuke.tobita@wacom.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add the Lenovo Intelligent Sensing Solution (LISS) custom sensors to the
known custom sensors.
Signed-off-by: Philipp Jungkamp <p.jungkamp@gmx.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The known LUID table for established/known custom HID sensors was
limited to sensors with "INTEL" as manufacturer. But some vendors such
as Lenovo also include fairly standard iio sensors (e.g. ambient light)
in their custom sensors.
Expand the known custom sensors table by a tag used for the platform
device name and match sensors based on the LUID as well as optionally
on model and manufacturer properties.
Signed-off-by: Philipp Jungkamp <p.jungkamp@gmx.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add check for the return value of the dma_alloc_coherent since
it may return NULL pointer if allocation fails.
Fixes: 4b2c53d93a ("SFH:Transport Driver to add support of AMD Sensor Fusion Hub (SFH)")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20221220024921.21992-1-jiasheng@iscas.ac.cn
The 'buf' variable is only used in the USB (if-path) and not in the Bluetooth
else-path. Since it is not set to NULL. this results in freeing an uninitialized
pointer. Since the else code-path doesn't need buf, just return 0.
Fixes: 2d77474a23 ("HID: playstation: add DualShock4 bluetooth support.")
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20221213044935.1775499-2-roderick.colenbrander@sony.com
The MCP2221 driver should not connect to the hidraw userspace interface,
as it needs exclusive access to the chip.
If you want to use /dev/hidrawX with the MCP2221, you need to avoid
binding this driver to the device and use the hid generic driver instead
(e.g. using udev rules).
Cc: stable@vger.kernel.org
Reported-by: Sven Zühlsdorf <sven.zuehlsdorf@vigem.de>
Signed-off-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20221103222714.21566-2-Enrik.Berkhan@inka.de
The Force Feedback code assumes that all the devices passed to it will
be USB devices, but that might not be the case for emulated devices.
Guard against a crash by checking the device type before poking at USB
properties.
Cc: stable@vger.kernel.org # v5.16+
Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20221215154416.111704-1-hadess@hadess.net
Here is the set of driver core and kernfs changes for 6.2-rc1.
The "big" change in here is the addition of a new macro,
container_of_const() that will preserve the "const-ness" of a pointer
passed into it.
The "problem" of the current container_of() macro is that if you pass in
a "const *", out of it can comes a non-const pointer unless you
specifically ask for it. For many usages, we want to preserve the
"const" attribute by using the same call. For a specific example, this
series changes the kobj_to_dev() macro to use it, allowing it to be used
no matter what the const value is. This prevents every subsystem from
having to declare 2 different individual macros (i.e.
kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce
the const value at build time, which having 2 macros would not do
either.
The driver for all of this have been discussions with the Rust kernel
developers as to how to properly mark driver core, and kobject, objects
as being "non-mutable". The changes to the kobject and driver core in
this pull request are the result of that, as there are lots of paths
where kobjects and device pointers are not modified at all, so marking
them as "const" allows the compiler to enforce this.
So, a nice side affect of the Rust development effort has been already
to clean up the driver core code to be more obvious about object rules.
All of this has been bike-shedded in quite a lot of detail on lkml with
different names and implementations resulting in the tiny version we
have in here, much better than my original proposal. Lots of subsystem
maintainers have acked the changes as well.
Other than this change, included in here are smaller stuff like:
- kernfs fixes and updates to handle lock contention better
- vmlinux.lds.h fixes and updates
- sysfs and debugfs documentation updates
- device property updates
All of these have been in the linux-next tree for quite a while with no
problems, OTHER than some merge issues with other trees that should be
obvious when you hit them (block tree deletes a driver that this tree
modifies, iommufd tree modifies code that this tree also touches). If
there are merge problems with these trees, please let me know.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of driver core and kernfs changes for 6.2-rc1.
The "big" change in here is the addition of a new macro,
container_of_const() that will preserve the "const-ness" of a pointer
passed into it.
The "problem" of the current container_of() macro is that if you pass
in a "const *", out of it can comes a non-const pointer unless you
specifically ask for it. For many usages, we want to preserve the
"const" attribute by using the same call. For a specific example, this
series changes the kobj_to_dev() macro to use it, allowing it to be
used no matter what the const value is. This prevents every subsystem
from having to declare 2 different individual macros (i.e.
kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce
the const value at build time, which having 2 macros would not do
either.
The driver for all of this have been discussions with the Rust kernel
developers as to how to properly mark driver core, and kobject,
objects as being "non-mutable". The changes to the kobject and driver
core in this pull request are the result of that, as there are lots of
paths where kobjects and device pointers are not modified at all, so
marking them as "const" allows the compiler to enforce this.
So, a nice side affect of the Rust development effort has been already
to clean up the driver core code to be more obvious about object
rules.
All of this has been bike-shedded in quite a lot of detail on lkml
with different names and implementations resulting in the tiny version
we have in here, much better than my original proposal. Lots of
subsystem maintainers have acked the changes as well.
Other than this change, included in here are smaller stuff like:
- kernfs fixes and updates to handle lock contention better
- vmlinux.lds.h fixes and updates
- sysfs and debugfs documentation updates
- device property updates
All of these have been in the linux-next tree for quite a while with
no problems"
* tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (58 commits)
device property: Fix documentation for fwnode_get_next_parent()
firmware_loader: fix up to_fw_sysfs() to preserve const
usb.h: take advantage of container_of_const()
device.h: move kobj_to_dev() to use container_of_const()
container_of: add container_of_const() that preserves const-ness of the pointer
driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion.
driver core: fix up missed scsi/cxlflash class.devnode() conversion.
driver core: fix up some missing class.devnode() conversions.
driver core: make struct class.devnode() take a const *
driver core: make struct class.dev_uevent() take a const *
cacheinfo: Remove of_node_put() for fw_token
device property: Add a blank line in Kconfig of tests
device property: Rename goto label to be more precise
device property: Move PROPERTY_ENTRY_BOOL() a bit down
device property: Get rid of __PROPERTY_ENTRY_ARRAY_EL*SIZE*()
kernfs: fix all kernel-doc warnings and multiple typos
driver core: pass a const * into of_device_uevent()
kobject: kset_uevent_ops: make name() callback take a const *
kobject: kset_uevent_ops: make filter() callback take a const *
kobject: make kobject_namespace take a const *
...
API:
- Optimise away self-test overhead when they are disabled.
- Support symmetric encryption via keyring keys in af_alg.
- Flip hwrng default_quality, the default is now maximum entropy.
Algorithms:
- Add library version of aesgcm.
- CFI fixes for assembly code.
- Add arm/arm64 accelerated versions of sm3/sm4.
Drivers:
- Remove assumption on arm64 that kmalloc is DMA-aligned.
- Fix selftest failures in rockchip.
- Add support for RK3328/RK3399 in rockchip.
- Add deflate support in qat.
- Merge ux500 into stm32.
- Add support for TEE for PCI ID 0x14CA in ccp.
- Add mt7986 support in mtk.
- Add MaxLinear platform support in inside-secure.
- Add NPCM8XX support in npcm.
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Merge tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Optimise away self-test overhead when they are disabled
- Support symmetric encryption via keyring keys in af_alg
- Flip hwrng default_quality, the default is now maximum entropy
Algorithms:
- Add library version of aesgcm
- CFI fixes for assembly code
- Add arm/arm64 accelerated versions of sm3/sm4
Drivers:
- Remove assumption on arm64 that kmalloc is DMA-aligned
- Fix selftest failures in rockchip
- Add support for RK3328/RK3399 in rockchip
- Add deflate support in qat
- Merge ux500 into stm32
- Add support for TEE for PCI ID 0x14CA in ccp
- Add mt7986 support in mtk
- Add MaxLinear platform support in inside-secure
- Add NPCM8XX support in npcm"
* tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits)
crypto: ux500/cryp - delete driver
crypto: stm32/cryp - enable for use with Ux500
crypto: stm32 - enable drivers to be used on Ux500
dt-bindings: crypto: Let STM32 define Ux500 CRYP
hwrng: geode - Fix PCI device refcount leak
hwrng: amd - Fix PCI device refcount leak
crypto: qce - Set DMA alignment explicitly
crypto: octeontx2 - Set DMA alignment explicitly
crypto: octeontx - Set DMA alignment explicitly
crypto: keembay - Set DMA alignment explicitly
crypto: safexcel - Set DMA alignment explicitly
crypto: hisilicon/hpre - Set DMA alignment explicitly
crypto: chelsio - Set DMA alignment explicitly
crypto: ccree - Set DMA alignment explicitly
crypto: ccp - Set DMA alignment explicitly
crypto: cavium - Set DMA alignment explicitly
crypto: img-hash - Fix variable dereferenced before check 'hdev->req'
crypto: arm64/ghash-ce - use frame_push/pop macros consistently
crypto: arm64/crct10dif - use frame_push/pop macros consistently
crypto: arm64/aes-modes - use frame_push/pop macros consistently
...
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Merge tag 'for-linus-2022121301' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- iio support for the MCP2221 HID driver (Matt Ranostay)
- support for more than one hinge sensor in hid-sensor-custom (Yauhen
Kharuzhy)
- PS DualShock 4 controller support (Roderick Colenbrander)
- XP-PEN Deco LW support (José Expósito)
- other assorted code cleanups and device ID/quirk addtions
* tag 'for-linus-2022121301' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (51 commits)
HID: logitech HID++: Send SwID in GetProtocolVersion
HID: hid-elan: use default remove for hid device
HID: hid-alps: use default remove for hid device
HID: hid-sensor-custom: set fixed size for custom attributes
HID: i2c: let RMI devices decide what constitutes wakeup event
HID: playstation: fix DualShock4 bluetooth CRC endian issue.
HID: playstation: fix DualShock4 bluetooth memory corruption bug.
HID: apple: Swap Control and Command keys on Apple keyboards
HID: intel-ish-hid: ishtp: remove variable rb_count
HID: uclogic: Standardize test name prefix
HID: hid-sensor-custom: Allow more than one hinge angle sensor
HID: ft260: fix 'cast to restricted' kernel CI bot warnings
HID: ft260: missed NACK from busy device
HID: ft260: fix a NULL pointer dereference in ft260_i2c_write
HID: ft260: wake up device from power saving mode
HID: ft260: missed NACK from big i2c read
HID: ft260: remove SMBus Quick command support
HID: ft260: skip unexpected HID input reports
HID: ft260: do not populate /dev/hidraw device
HID: ft260: improve i2c large reads performance
...
- a new driver for Cypress Generation 5 touchscreens
- a new driver for Hynitron cstxxx touchscreens
- a new driver for Himax hx83112b touchscreen
- I2C input devices have been converted to use i2c's probe_new()
- a large number of input devices are now using DEFINE_SIMPLE_DEV_PM_OPS
and pm_sleep_ptr() and no longer use __maybe_unused annotations
- improvements to msg2638 touchscreen driver to also support msg2138
- conversion of several input deevine bindings to yaml/DT schema
- changes to select touch drivers to move handling of wake irqs to the
PM core
- other assorted fixes and improvements.
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Merge tag 'input-for-v6.2-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for Cypress Generation 5 touchscreens
- a new driver for Hynitron cstxxx touchscreens
- a new driver for Himax hx83112b touchscreen
- I2C input devices have been converted to use i2c's probe_new()
- a large number of input devices are now using
DEFINE_SIMPLE_DEV_PM_OPS and pm_sleep_ptr() and no longer use
__maybe_unused annotations
- improvements to msg2638 touchscreen driver to also support msg2138
- conversion of several input deevine bindings to yaml/DT schema
- changes to select touch drivers to move handling of wake irqs to the
PM core
- other assorted fixes and improvements.
* tag 'input-for-v6.2-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (165 commits)
Input: elants_i2c - delay longer with reset asserted
dt-bindings: input: Convert ti,drv260x to DT schema
dt-bindings: input: gpio-beeper: Convert to yaml schema
Input: pxspad - fix unused data warning when force feedback not enabled
Input: lpc32xx - allow building with COMPILE_TEST
Input: nomadik-ske-keypad - allow building with COMPILE_TEST
Input: pxa27xx-keypad - allow build with COMPILE_TEST
Input: spear-keyboard - improve build coverage using COMPILE_TEST
Input: tegra-kbc - allow build with COMPILE_TEST
Input: tegra-kbc - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: tca6416-keypad - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: tc3589x - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: st-keyscan - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: sh-keysc - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: qt1070 - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: pxa27x_keypad - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: pmic8xxx-keypad - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: nomadik-ske-keypad - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: mcs-touchkey - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Input: max7359-keypad - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
...
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Merge tag 'for-linus-2022120801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
"A regression fix for handling Logitech HID++ devices and memory
corruption fixes:
- regression fix (revert) for catch-all handling of Logitech HID++
Bluetooth devices; there are devices that turn out not to work with
this, and the root cause is yet to be properly understood. So we
are dropping it for now, and it will be revisited for 6.2 or 6.3
(Benjamin Tissoires)
- memory corruption fix in HID core (ZhangPeng)
- memory corruption fix in hid-lg4ff (Anastasia Belova)
- Kconfig fix for I2C_HID (Benjamin Tissoires)
- a few device-id specific quirks that piggy-back on top of the
important fixes above"
* tag 'for-linus-2022120801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
Revert "HID: logitech-hidpp: Enable HID++ for all the Logitech Bluetooth devices"
Revert "HID: logitech-hidpp: Remove special-casing of Bluetooth devices"
HID: usbhid: Add ALWAYS_POLL quirk for some mice
HID: core: fix shift-out-of-bounds in hid_report_raw_event
HID: uclogic: Add HID_QUIRK_HIDINPUT_FORCE quirk
HID: fix I2C_HID not selected when I2C_HID_OF_ELAN is
HID: hid-lg4ff: Add check for empty lbuf
HID: ite: Enable QUIRK_TOUCHPAD_ON_OFF_REPORT on Acer Aspire Switch V 10
HID: uclogic: Fix frame templates for big endian architectures
This reverts commit 532223c8ac.
As reported in [0], hid-logitech-hidpp now binds on all bluetooth mice,
but there are corner cases where hid-logitech-hidpp just gives up on
the mouse. This leads the end user with a dead mouse.
Given that we are at -rc8, we are definitively too late to find a proper
fix. We already identified 2 issues less than 24 hours after the bug
report. One in that ->match() was never designed to be used anywhere else
than in hid-generic, and the other that hid-logitech-hidpp has corner
cases where it gives up on devices it is not supposed to.
So we have no choice but postpone this patch to the next kernel release.
[0] https://lore.kernel.org/linux-input/CAJZ5v0g-_o4AqMgNwihCb0jrwrcJZfRrX=jv8aH54WNKO7QB8A@mail.gmail.com/
Reported-by: Rafael J . Wysocki <rjw@rjwysocki.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This reverts commit 8544c812e4.
We need to revert commit 532223c8ac ("HID: logitech-hidpp: Enable HID++
for all the Logitech Bluetooth devices") because that commit might make
hid-logitech-hidpp bind on mice that are not well enough supported by
hid-logitech-hidpp, and the end result is that the probe of those mice
is now returning -ENODEV, leaving the end user with a dead mouse.
Given that commit 8544c812e4 ("HID: logitech-hidpp: Remove special-casing
of Bluetooth devices") is a direct dependency of 532223c8ac, revert it
too.
Note that this also adapt according to commit 908d325e16 ("HID:
logitech-hidpp: Detect hi-res scrolling support") to re-add support of
the devices that were removed from that commit too.
I have locally an MX Master and I tested this device with that revert,
ensuring we still have high-res scrolling.
Reported-by: Rafael J . Wysocki <rjw@rjwysocki.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The U2F zero apparently has a real TRNG in it with maximum quality, not
one with quality of "1", which was likely a misinterpretation of the
field as a boolean. So remove the assignment entirely, so that we get
the default quality setting.
In the u2f-zero firmware, the 0x21 RNG command used by this driver is
handled as such [1]:
case U2F_CUSTOM_GET_RNG:
if (atecc_send_recv(ATECC_CMD_RNG,ATECC_RNG_P1,ATECC_RNG_P2,
NULL, 0,
appdata.tmp,
sizeof(appdata.tmp), &res) == 0 )
{
memmove(msg->pkt.init.payload, res.buf, 32);
U2FHID_SET_LEN(msg, 32);
usb_write((uint8_t*)msg, 64);
}
else
{
U2FHID_SET_LEN(msg, 0);
usb_write((uint8_t*)msg, 64);
}
This same call to `atecc_send_recv(ATECC_CMD_RNG,ATECC_RNG_P1,
ATECC_RNG_P2,...)` is then also used in the token's cryptographically
critical "u2f_new_keypair" function, as its rather straightforward
source of random bytes [2]:
int8_t u2f_new_keypair(uint8_t * handle, uint8_t * appid, uint8_t * pubkey)
{
struct atecc_response res;
uint8_t private_key[36];
int i;
watchdog();
if (atecc_send_recv(ATECC_CMD_RNG,ATECC_RNG_P1,ATECC_RNG_P2,
NULL, 0,
appdata.tmp,
sizeof(appdata.tmp), &res) != 0 )
{
return -1;
}
So it seems rather plain that the ATECC RNG is considered to provide
good random numbers.
[1] https://github.com/conorpp/u2f-zero/blob/master/firmware/src/custom.c
[2] https://github.com/conorpp/u2f-zero/blob/master/firmware/src/u2f_atecc.c
Cc: Andrej Shadura <andrew.shadura@collabora.co.uk>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Andrej Shadura <andrew.shadura@collabora.co.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
HUTRR72 added 3 new usage codes for keys that are supposed to enable,
disable and toggle camera access. These are useful, considering many
laptops today have key(s) for toggling access to camera.
This patch adds new key definitions for KEY_CAMERA_ACCESS_ENABLE,
KEY_CAMERA_ACCESS_DISABLE and KEY_CAMERA_ACCESS_TOGGLE. Additionally
hid-debug is adjusted to recognize this new usage codes as well.
Signed-off-by: Eray Orçunus <erayorcunus@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/r/20221029120311.11152-3-erayorcunus@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The I2C hid driver is currently manually managing the wake
IRQ. This change removes the explicit enable_irq_wake/disable_irq_wake
and instead relies on the PM subsystem. This is done by calling
dev_pm_set_wake_irq.
i2c_device_probe already calls dev_pm_set_wake_irq when using device
tree, and i2c_device_remove also already calls dev_pm_clear_wake_irq.
There could be some device tree systems that have incorrectly declared
`wake` capabilities, so this change will set the wake irq if one is
missing. This matches the previous behavior.
I tested this on an ACPI system that has a HID touchscreen and verified
the IRQ was armed for wake on suspend.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20220929093200.v6.1.Id4b4bdfe06e2caf2d5a3c9dd4a9b1080c38b539c@changeid
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some additional USB mouse devices are needing ALWAYS_POLL quirk without
which they disconnect and reconnect every 60s.
Add below devices to the known quirk list.
CHERRY VID 0x046a, PID 0x000c
MICROSOFT VID 0x045e, PID 0x0783
PRIMAX VID 0x0461, PID 0x4e2a
Signed-off-by: Ankit Patel <anpatel@nvidia.com>
Signed-off-by: Haotien Hsu <haotienh@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
According to docs a SwID should be sent for GetProtocolVersion.
> 0x10.DeviceIndex.0x00.0x1n
where n is SwID.
Signed-off-by: Andreas Bergmeier <abergmeier@gmx.net>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hid_device_remove() will call hid_hw_stop() as default .remove function
if no function is specified.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hid_device_remove() will call hid_hw_stop() as default .remove function
if no function is specified.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This is no bugfix (so no Fixes: tag is necessary) as it is
taken care of in hid_sensor_custom_add_attributes().
The motivation for this patch is that:
hid_sensor_custom_field.attr_name and
hid_sensor_custom_field.attrs
has the size of HID_CUSTOM_TOTAL_ATTRS and used in same context.
We compare against HID_CUSTOM_TOTAL_ATTRS when
looping through hid_custom_attrs.
We will silent the smatch error:
hid_sensor_custom_add_attributes() error: buffer overflow
'hid_custom_attrs' 8 <= 10
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Syzbot reported shift-out-of-bounds in hid_report_raw_event.
microsoft 0003:045E:07DA.0001: hid_field_extract() called with n (128) >
32! (swapper/0)
======================================================================
UBSAN: shift-out-of-bounds in drivers/hid/hid-core.c:1323:20
shift exponent 127 is too large for 32-bit type 'int'
CPU: 0 PID: 0 Comm: swapper/0 Not tainted
6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #0
Hardware name: Google Compute Engine/Google Compute Engine, BIOS
Google 10/26/2022
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
ubsan_epilogue lib/ubsan.c:151 [inline]
__ubsan_handle_shift_out_of_bounds+0x3a6/0x420 lib/ubsan.c:322
snto32 drivers/hid/hid-core.c:1323 [inline]
hid_input_fetch_field drivers/hid/hid-core.c:1572 [inline]
hid_process_report drivers/hid/hid-core.c:1665 [inline]
hid_report_raw_event+0xd56/0x18b0 drivers/hid/hid-core.c:1998
hid_input_report+0x408/0x4f0 drivers/hid/hid-core.c:2066
hid_irq_in+0x459/0x690 drivers/hid/usbhid/hid-core.c:284
__usb_hcd_giveback_urb+0x369/0x530 drivers/usb/core/hcd.c:1671
dummy_timer+0x86b/0x3110 drivers/usb/gadget/udc/dummy_hcd.c:1988
call_timer_fn+0xf5/0x210 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers+0x76a/0x980 kernel/time/timer.c:1790
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
__do_softirq+0x277/0x75b kernel/softirq.c:571
__irq_exit_rcu+0xec/0x170 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107
======================================================================
If the size of the integer (unsigned n) is bigger than 32 in snto32(),
shift exponent will be too large for 32-bit type 'int', resulting in a
shift-out-of-bounds bug.
Fix this by adding a check on the size of the integer (unsigned n) in
snto32(). To add support for n greater than 32 bits, set n to 32, if n
is greater than 32.
Reported-by: syzbot+8b1641d2f14732407e23@syzkaller.appspotmail.com
Fixes: dde5845a52 ("[PATCH] Generic HID layer - code split")
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
HID-RMI is special in the sense that it does not carry HID events
directly, but rather uses HID protocol as a wrapper/transport for RMI
protocol. Therefore we should not assume that all data coming from the
device via interrupt is associated with user activity and report wakeup
event indiscriminately, but rather let HID-RMI do that when appropriate.
HID-RMI devices tag responses to the commands issued by the host as
RMI_READ_DATA_REPORT_ID whereas motion and other input events from the
device are tagged as RMI_ATTN_REPORT_ID. Change hid-rmi to report wakeup
events when receiving the latter packets. This allows ChromeOS to
accurately identify wakeup source and make correct decision on the mode
of the resume the system should take ("dark" where the display stays off
vs normal one).
Fixes: d951ae1ce8 ("HID: i2c-hid: Report wakeup events")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
In most configurations, INPUT is actually a boolean: either y or disabled,
but when it's disabled, you can't do much on your average laptop.
But it turns out that there is a possibility to have INPUT as a module:
you have to disable VT and TTY (of course), but also enable EXPERT.
I'll leave how to disable VT and TTY as an exercise for the bravest.
Anyway, if INPUT is m, we can still configure HID as y, which is not
correct because hid-input.c depends on the input API, meaning that
vmlinuz can not link.
So: add depends on INPUT too at the HID level, to ensure that if INPUT=m,
HID can only be m or disabled.
Fixes: 25621bcc89 ("HID: Kconfig: split HID support and hid-core compilation")
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/202211181742.QYJY6Gug-lkp@intel.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Commit f7d8e387d9 ("HID: uclogic: Switch to Digitizer usage for
styluses") changed the usage used in UCLogic from "Pen" to "Digitizer".
However, the IS_INPUT_APPLICATION() macro evaluates to false for
HID_DG_DIGITIZER causing issues with the XP-Pen Star G640 tablet.
Add the HID_QUIRK_HIDINPUT_FORCE quirk to bypass the
IS_INPUT_APPLICATION() check.
Reported-by: Torge Matthies <openglfreak@googlemail.com>
Reported-by: Alexander Zhang <alex@alexyzhang.dev>
Tested-by: Alexander Zhang <alex@alexyzhang.dev>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The driver was by accident reading the CRC directly from a hardware
structure instead of using get_unaligned_le32.
Fixes: 2d77474a23 ("HID: playstation: add DualShock4 bluetooth support.")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The size of the output buffer used for output reports was not updated
to the larger size needed for Bluetooth. This ultimately resulted
in memory corruption of surrounding structures e.g. due to memsets.
Fixes: 2d77474a23 ("HID: playstation: add DualShock4 bluetooth support.")
Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a new tracepoint hid_bpf_rdesc_fixup() so we can trigger a
report descriptor fixup in the bpf world.
Whenever the program gets attached/detached, the device is reconnected
meaning that userspace will see it disappearing and reappearing with
the new report descriptor.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This function can not be called under IRQ, thus it is only available
while in SEC("syscall").
For consistency, this function requires a HID-BPF context to work with,
and so we also provide a helper to create one based on the HID unique
ID.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
--
changes in v12:
- variable dereferenced before check 'ctx'
|Reported-by: kernel test robot <lkp@intel.com>
|Reported-by: Dan Carpenter <error27@gmail.com>
no changes in v11
no changes in v10
changes in v9:
- fixed kfunc declaration aaccording to latest upstream changes
no changes in v8
changes in v7:
- hid_bpf_allocate_context: remove unused variable
- ensures buf is not NULL
changes in v6:
- rename parameter size into buf__sz to teach the verifier about
the actual buffer size used by the call
- remove the allocated data in the user created context, it's not used
new-ish in v5
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
We need to also be able to change the size of the report.
Reducing it is easy, because we already have the incoming buffer that is
big enough, but extending it is harder.
Pre-allocate a buffer that is big enough to handle all reports of the
device, and use that as the primary buffer for BPF programs.
To be able to change the size of the buffer, we change the device_event
API and request it to return the size of the buffer.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Kind of a hack, but works for now:
Instead of listening for any close of eBPF program, we now
decrement the refcount when we insert it in our internal
map of fd progs.
This is safe to do because:
- we listen to any call of destructor of programs
- when a program is being destroyed, we disable it by removing
it from any RCU list used by any HID device (so it will never
be called)
- we then trigger a job to cleanup the prog fd map, but we overwrite
the removal of the elements to not do anything on the programs, just
remove the allocated space
This is better than previously because we can remove the map of known
programs and their usage count. We now rely on the refcount of
bpf, which has greater chances of being accurate.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Declare an entry point that can use fmod_ret BPF programs, and
also an API to access and change the incoming data.
A simpler implementation would consist in just calling
hid_bpf_device_event() for any incoming event and let users deal
with the fact that they will be called for any event of any device.
The goal of HID-BPF is to partially replace drivers, so this situation
can be problematic because we might have programs which will step on
each other toes.
For that, we add a new API hid_bpf_attach_prog() that can be called
from a syscall and we manually deal with a jump table in hid-bpf.
Whenever we add a program to the jump table (in other words, when we
attach a program to a HID device), we keep the number of time we added
this program in the jump table so we can release it whenever there are
no other users.
HID devices have an RCU protected list of available programs in the
jump table, and those programs are called one after the other thanks
to bpf_tail_call().
To achieve the detection of users losing their fds on the programs we
attached, we add 2 tracing facilities on bpf_prog_release() (for when
a fd is closed) and bpf_free_inode() (for when a pinned program gets
unpinned).
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Currently, we step into drivers/hid/ based on the value of
CONFIG_HID.
However, that value is a tristate, meaning that it can be a module.
As per the documentation, if we jump into the subdirectory by
following an obj-m, we can not compile anything inside that
subdirectory in vmlinux. It is considered as a bug.
To make things more friendly to HID-BPF, split HID (the HID core
parameter) from HID_SUPPORT (do we want any kind of HID support in the
system?), and make this new config a boolean.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When I2C_HID_OF_ELAN is set, we need to turn on I2C_HID_CORE to
ensure we get all the HID requirements.
Fixes: bd3cba00dc ("HID: i2c-hid: elan: Add support for Elan eKTH6915 i2c-hid touchscreens")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
If an empty buf is received, lbuf is also empty. So lbuf is
accessed by index -1.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: f31a2de3fe ("HID: hid-lg4ff: Allow switching of Logitech gaming wheels between compatibility modes")
Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The Acer Aspire Switch V 10 (SW5-017)'s keyboard-dock uses the same
ITE controller setup as other Acer Switch 2-in-1's.
This needs special handling for the wifi on/off toggle hotkey as well as
to properly report touchpad on/off keypresses.
Add the USB-ids for the SW5-017's keyboard-dock with a quirk setting of
QUIRK_TOUCHPAD_ON_OFF_REPORT to fix both issues.
Cc: Rudolf Polzer <rpolzer@google.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch allows users to swap the control and command keys. This can be
useful for the Mac users who are used to using Command instead of Control
in macOS for various commonly used shortcuts.
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The variable rb_count is being incremented but it
is never referenced, it is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Commit 961bcdf956 ("drm/tests: Change "igt_" prefix to "drm_test_"")
introduced a new naming convention for the KUnit tests present in the
DRM subsystem: "drm_test_<module>_<test name>".
This naming convention is very convenient because it allows to easily
run all subsystem tests or all driver tests using kunit.py's wildcards.
Follow the naming conventions used in the DRM subsystem adapted to the
HID subsystem: "hid_test_<module>_<test name>".
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When parsing a frame template with a placeholder indicating the number
of buttons present on the frame its value was incorrectly set on big
endian architectures due to double little endian conversion.
In order to reproduce the issue and verify the fix, run the HID KUnit
tests on the PowerPC architecture:
$ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/hid \
--arch=powerpc --cross_compile=powerpc64-linux-gnu-
Fixes: 867c892544 ("HID: uclogic: Allow to generate frame templates")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Some devices has two sets of accelerometers and the sensor hub exports
two hinge angle 'sensors' based on accelerometer values. To allow more
than one sensor of the same type, use PLATFORM_DEVID_AUTO instead of
PLATFORM_DEVID_NONE when registering platform device for it.
Checked on the Lenovo Yoga Book YB1-X91L tablet.
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fix 'cast to restricted' sparse warnings reported by kernel test robot
in https://lore.kernel.org/all/202211021607.ssjymlKi-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When writing into a slow device like an EEPROM chip, the
controller may exit the busy state before the device releases
the bus. In this case, the ft260_xfer_status returns success
before the data transfer completion.
The patch fixes it by returning from the ft260_xfer_status()
with the "-EAGAIN" on both controller and bus busy status when
appropriate.
It does not apply to the i2c combined transactions when after
the write IO, the controller keeps the bus busy until the read
IO and then between reading IOs to ensure an atomic operation.
Co-developed-by: Germain Hebert <germain.hebert@ca.abb.com>
Signed-off-by: Germain Hebert <germain.hebert@ca.abb.com>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The zero-length passed into the ft260_i2c_write() triggered the
NULL pointer dereference in the debug message on data[0] access.
Since the controller does not support a write of zero length,
let's not allow it.
Before:
$ sudo i2ctransfer -y 13 w0@0x51
Killed
After:
$ sudo i2ctransfer -y 13 w0@0x51
Error: Sending messages failed: Invalid argument
Reported-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The FT260 can enter a power saving mode after being idle for longer
than 5 seconds.
When being woken up from power saving mode by an I2C write request,
a possible NACK is not correctly reported by the controller. As a
workaround, the driver will issue an I2C status report two times in
ft260_xfer_status() after the chip has been idle for more than 5s.
Co-developed-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The FT260 controller does not return NACK when performing a big
read (of multiple hid reports size) from a non-existing device
or from the device responding with NACK when it is not ready
to serve the request. However, it responds correctly with NACK
to a read of up to a single hid report size.
To overcome this issue, we split the muli-report read request
into a read of a single HID report of 60 bytes size and a
multi-report read.
Big read of 256 bytes with first read of 60 bytes:
$ sudo ./i2cperf -d 2 -o 2 -s 256 -r 0-0xff 1 0x50 -S
[ +5.633280] ft260_i2c_write_read: off 0x0 rlen 255 wlen 2
[ +0.000006] ft260_i2c_write: rep 0xd0 addr 0x50 off 0 len 2 wlen 2 flag 0x2 d[0] 0x0
[ +0.013205] ft260_xfer_status: bus_status 0x20, clock 100
[ +0.000007] ft260_i2c_read: rep 0xc2 addr 0x50 len 255 rlen 60 flag 0x3
[ +0.010932] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.004733] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000006] ft260_i2c_read: rep 0xc2 addr 0x50 len 195 rlen 128 flag 0x0
[ +0.012572] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.005789] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.003189] ft260_raw_event: i2c resp: rep 0xd1 len 8
[ +0.004092] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000010] ft260_i2c_read: rep 0xc2 addr 0x50 len 67 rlen 67 flag 0x4
[ +0.011688] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.004700] ft260_raw_event: i2c resp: rep 0xd1 len 7
[ +0.004858] ft260_xfer_status: bus_status 0x20, clock 100
Read from non-existing device at address 8. The first 60 read responded
with NACK.
$ sudo ./i2cperf -d 2 -o 2 -s 256 -r 0-0xff 1 0x8 -S
[Oct19 15:37] ft260_i2c_write_read: off 0x0 rlen 255 wlen 2
[ +0.000007] ft260_i2c_write: rep 0xd0 addr 0x8 off 0 len 2 wlen 2 flag 0x2 d[0] 0x0
[ +0.022820] ft260_xfer_status: bus_status 0x20, clock 100
[ +0.000007] ft260_i2c_read: rep 0xc2 addr 0x8 len 255 rlen 60 flag 0x3
[ +0.010658] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.005965] ft260_xfer_status: bus_status 0x46, clock 100 <-- NACK
[ +0.000009] ft260 0003:0403:6030.0004: i2c bus error: 0x46
[ +0.007784] ft260_i2c_reset: done
Co-developed-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The i2cdetect uses the SMBus Quick command by default to scan devices
on the I2C bus. The FT260 implements an I2C bus controller. The SMBus
is derived from I2C, but there are several differences between the
specifications of the two buses in the areas of timing, protocols,
operation modes, and electrical characteristics.
One of the differences is that the I2C devices allow the slave not
to ACK its slave address, but SMBus requires it to always ACK it as
a mechanism to detect a detachable device’s presence on the bus.
Since FT260 is the I2C bus controller, it does not acknowledge the
SMBus Quick write command, which sends a single bit to the device at
the place of the RD/WR bit.
The ft260 driver attempted to mimic the SMBus Quick Write functionality
by writing a single byte as the SMBus Byte Write command does.
Usually, one byte in the SMBus Quick Write will be fine. However, it may
cause problems with devices with a control register at offset 0, like
i2c muxes, for example, when scanned with the i2cdetect utility.
The i2cdetect with the "-r" option uses the SMBus Read Byte command,
which is a reasonable workaround. To prevent the I2C bus from locking
at write-only devices (most notably clock chips at address 0x69), use
the "-r" option in conjunction with scanning range parameters.
This patch removes the SMBus Quick command support.
$ sudo i2cdetect -y 13
Warning: Can't use SMBus Quick Write command, will skip some addresses
0 1 2 3 4 5 6 7 8 9 a b c d e f
00:
10:
20:
30: -- -- -- -- -- -- -- --
40:
50: 50 51 -- -- -- -- -- -- -- -- -- -- -- -- -- --
60:
70:
$ sudo i2cdetect -y -r 13
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: 50 51 -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
Reported-by: Vince Asbridge <VAsbridge@sanblaze.com>
Reported-by: Stephen Shirron <SShirron@sanblaze.com>
Reported-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The FT260 is not supposed to generate unexpected HID reports. However,
in theory, the unsolicited HID Input reports can be issued by a specially
crafted malicious USB device masquerading as FT260 when the attacker has
physical access to the USB port. In this case, the read_buf pointer points
to the final data portion of the previous I2C Read transfer, and the memcpy
invoked in the ft260_raw_event() will try copying the content of the
unexpected report into the wrong location.
This commit sets the Read buffer pointer to NULL on the I2C Read
transaction completion and checks it in the ft260_raw_event() to detect
and skip the unsolicited Input report.
Reported-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Do not populate the /dev/hidraw on ft260 interfaces when the hid-ft260
driver is loaded.
$ sudo insmod hid-ft260.ko
$ ls /dev/hidraw*
/dev/hidraw0
$ sudo rmmod hid-ft260.ko
$ ls /dev/hidraw*
/dev/hidraw0 /dev/hidraw1 /dev/hidraw2
Reported-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
A random i2c read operation in EEPROM devices is implemented as a dummy
write operation, followed by a current address read operation. The dummy
write operation is used to load the target byte or word address (a.k.a
offset) into the offset counter, from which the subsequent read operation
then reads.
To support longer than one HID report size random read, the ft260 driver
issues multiple pairs of i2c write offset + read data transactions of HID
report size so that the EEPROM device sees many i2c random read requests
from different offsets.
Two issues with the current implementation:
- This approach suffers from extra overhead caused by writing offset
requests.
- Necessity to handle offset per HID report in big-endian representation
as EEPROM devices expect. The current implementation does not do it and
correctly handles the reads up to 60 bytes only.
This patch addresses both issues by implementing more efficient approach.
It issues a single i2c read request of up to the EEPROM page size and then
waits for the data to arrive in multiple HID reports. For example, to read
the 256 bytes from a 24LC512 chip, which has 128 bytes page size, the old
method performs six ft260_i2c_write_read transactions while the new - two
only.
Before:
$ sudo ./i2cperf -d 2 -o 2 -s 128 -r 0-0xff 13 0x51 -S
Read block via i2ctransfer by chunks
-------------------------------------------------------------------
data rate(bps) efficiency(%) data size(B) total IOs IO size(B)
-------------------------------------------------------------------
40803 85 256 2 128
Kernel log of a single 128 bytes read request:
[ +2.376308] ft260_i2c_write_read: read_off 0x0 left_len 128 len 60
[ +0.000002] ft260_i2c_write: rep 0xd0 addr 0x51 off 0 len 2 wlen 2 flag 0x2 d[0] 0x0
[ +0.000707] ft260_xfer_status: bus_status 0x41, clock 100
[ +0.000173] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000001] ft260_i2c_read: rep 0xc2 addr 0x51 len 60
[ +0.008660] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.000156] ft260_xfer_status: bus_status 0x20, clock 100
[ +0.000001] ft260_i2c_write_read: read_off 0x3c left_len 68 len 60
[ +0.000001] ft260_i2c_write: rep 0xd0 addr 0x51 off 0 len 2 wlen 2 flag 0x2 d[0] 0x3c
[ +0.001034] ft260_xfer_status: bus_status 0x41, clock 100
[ +0.000191] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000001] ft260_i2c_read: rep 0xc2 addr 0x51 len 60
[ +0.008614] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.000203] ft260_xfer_status: bus_status 0x20, clock 100
[ +0.000001] ft260_i2c_write_read: read_off 0x78 left_len 8 len 8
[ +0.000001] ft260_i2c_write: rep 0xd0 addr 0x51 off 0 len 2 wlen 2 flag 0x2 d[0] 0x78
[ +0.000987] ft260_xfer_status: bus_status 0x41, clock 100
[ +0.000192] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000001] ft260_i2c_read: rep 0xc2 addr 0x51 len 8
[ +0.002614] ft260_raw_event: i2c resp: rep 0xd1 len 8
[ +0.000200] ft260_xfer_status: bus_status 0x20, clock 100
After:
$ sudo ./i2cperf -d 2 -o 2 -s 128 -r 0-0xff 13 0x51 -S
Read block via i2ctransfer by chunks
-------------------------------------------------------------------
data rate(bps) efficiency(%) data size(B) total IOs IO size(B)
-------------------------------------------------------------------
43990 85 256 2 128
Kernel log of a single 128 bytes read request:
[ +1.464346] ft260_i2c_write_read: off 0x0 rlen 128 wlen 2
[ +0.000002] ft260_i2c_write: rep 0xd0 addr 0x51 off 0 len 2 wlen 2 flag 0x2 d[0] 0x0
[ +0.001653] ft260_xfer_status: bus_status 0x41, clock 100
[ +0.000188] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000002] ft260_i2c_read: rep 0xc2 addr 0x51 len 128 rlen 60 flag 0x3
[ +0.008609] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.000157] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000002] ft260_i2c_read: rep 0xc2 addr 0x51 len 68 rlen 60 flag 0x0
[ +0.008840] ft260_raw_event: i2c resp: rep 0xde len 60
[ +0.000203] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000002] ft260_i2c_read: rep 0xc2 addr 0x51 len 8 rlen 8 flag 0x4
[ +0.002794] ft260_raw_event: i2c resp: rep 0xd1 len 8
[ +0.000201] ft260_xfer_status: bus_status 0x20, clock 100
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Tested-by: Guillaume Champagne <champagne.guillaume.c@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
To support longer than one HID report size write, the driver splits a
single i2c message data payload into multiple i2c messages of HID report
size. However, it does not replicate the offset bytes within the EEPROM
chip in every consequent HID report because it is not and should not be
aware of the EEPROM type. It breaks the i2c write message integrity and
causes the EEPROM device not to acknowledge the second HID report keeping
the i2c bus busy until the ft260 controller reports failure.
This patch preserves the i2c write message integrity by manipulating the
i2c flag bits across multiple HID reports to be seen by the EEPROM device
as a single i2c write transfer.
Before:
$ sudo ./i2cperf -f 2 -o 2 -s 64 -r 0-0xff 13 0x51 -S
Error: Sending messages failed: Input/output error
[ +3.667741] ft260_i2c_write: rep 0xde addr 0x51 off 0 len 60 d[0] 0x0
[ +0.007330] ft260_hid_output_report_check_status: wait 6400 usec, len 64
[ +0.000203] ft260_xfer_status: bus_status 0x40, clock 100
[ +0.000001] ft260_i2c_write: rep 0xd1 addr 0x51 off 60 len 6 d[0] 0x0
[ +0.002337] ft260_hid_output_report_check_status: wait 1000 usec, len 10
[ +0.000157] ft260_xfer_status: bus_status 0x2e, clock 100
[ +0.000241] ft260_i2c_reset: done
[ +0.000003] ft260_i2c_write: failed to start transfer, ret -5
After:
$ sudo ./i2cperf -f 2 -o 2 -s 128 -r 0-0xff 13 0x51 -S
Fill block with increment via i2ctransfer by chunks
-------------------------------------------------------------------
data rate(bps) efficiency(%) data size(B) total IOs IO size(B)
-------------------------------------------------------------------
71260 86 256 2 128
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Tested-by: Guillaume Champagne <champagne.guillaume.c@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
After clarifying with FTDI's support, it turned out that the error
condition (bit 1) in byte 1 of the i2c status HID report is a status
bit reflecting all error conditions. When bits 2, 3, or 4 are raised
to 1, bit 1 is set to 1 also. Since the ft260_xfer_status routine tests
the error condition bit and exits in the case of an error, the program
flow never reaches the conditional expressions for 2, 3, and 4 bits when
any of them indicates an error state. Though these expressions are never
evaluated to true, they are checked several times per IO, increasing the
ft260_xfer_status polling cycle duration.
The patch removes the conditional expressions for 2, 3, and 4 bits in
byte 1 of the i2c status HID report.
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Tested-by: Guillaume Champagne <champagne.guillaume.c@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds support for the DualShock4 dongle in a very similar
way we contributed to hid-sony before.
The dongle is a USB to Bluetooth bridge and uses the same HID reports
as a USB device. It reports data through the DS4's main USB input
report independent on whether a Bluetooth controller is connected.
For this reason there is custom dongle report parsing code to
detect controller hotplug and kick of calibration work until we
are ready to process actual input reports.
The logic also incorporates a workaround needed for Steam in which
hid-playstation and Steam using hidraw can fight.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The poll interval for DualShock4 in Bluetooth mode is adjustable
through the main output report. Configure it to 4ms, which is
similar to USB.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add support for DualShock4 in Bluetooth mode. In Bluetooth, the device
is a bit strange in that after 'calibration' it switches sending all its
input data from a basic report (only containing buttons/sticks) to an
extended report, which also contains touchpad, motion sensors and other
data. The overall design of this code is similar to the DualSense code.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds a parameter to ps_get_report to ignore CRC checks.
This prepares for DualShock4, which has some HID reports, which lack CRC.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Expose the lightbar LEDs in the same manner as hid-sony through
individual LEDs for backwards compatibility reasons. There is a
slight change in LED naming to use the input device name as opposed
to the MAC address like hid-sony did. This is expected to not
cause any issues and should make the naming more compliant.
In addition set a default lightbar color based on player ID.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Make the max_brightness adjustable through ps_led_info struct. This
paves the way for a next DualShock4 patch to allow larger brightness
values.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch implements DualShock4 rumble support in a similar manner
as the DualSense implementation. It adds an output worker with
granular control of different features of the main DualShock4 output
report.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Support accelerometer and gyroscope as separate input devices similar
how DualSense and hid-sony do it.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Support the DualShock4 touchpad as a separate input device. The code
describes the touchpad input reports through structures similar a bit
to the DualSense code.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Provide DualShock4 battery support through powersupply framework.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Report DualShock4 hardware and firmware version info through sysfs.
It uses the same sysfs nodes as the DualSense did (and hid-sony).
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add basic support for DualShock4 USB controller with buttons and sticks.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The XP-PEN Deco LW is a UGEE v2 device with a frame with 8 buttons.
Its pen has 2 buttons, supports tilt and pressure.
It can be connected by USB cable or using a USB Bluetooth dongle to use
it in wireless mode. When it is connected using the dongle, the device
battery is used to power it.
Its vendor, product and version are identical to the Deco L. The only
difference reported by its firmware is the product name.
In order to add support for battery reporting, add a new HID descriptor
and a quirk to detect the wireless version of the tablet.
Link: https://github.com/DIGImend/digimend-kernel-drivers/issues/635
Tested-by: Mia Kanashi <chad@redpilled.dev>
Tested-by: Andreas Grosse <andig.mail@t-online.de>
Tested-by: Mia Kanashi <chad@redpilled.dev>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The XP-PEN Deco LW drawing tablet can be connected by USB cable or using
a USB Bluetooth dongle. When it is connected using the dongle, there
might be a small delay until the tablet is paired with the dongle.
Fetching the device battery during this delay results in random battery
percentage values.
Add a quirk to avoid actively querying the battery percentage and wait
for the device to report it on its own.
Reported-by: Mia Kanashi <chad@redpilled.dev>
Tested-by: Mia Kanashi <chad@redpilled.dev>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
