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2025-02-03HID: topre: Fix n-key rollover on Realforce R3S TKL boardsDaniel Brackenbury1-1/+2
Newer model R3* Topre Realforce keyboards share an issue with their older R2 cousins where a report descriptor fixup is needed in order for n-key rollover to work correctly, otherwise only 6-key rollover is available. This patch adds some new hardware IDs for the R3S 87-key keyboard and makes amendments to the existing hid-topre driver in order to change the correct byte in the new model. Signed-off-by: Daniel Brackenbury <daniel.brackenbury@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2025-02-03HID: intel-thc: fix CONFIG_HID dependencyArnd Bergmann1-4/+6
In drivers/hid/, most drivers depend on CONFIG_HID, while a couple of the drivers in subdirectories instead depend on CONFIG_HID_SUPPORT and use 'select HID'. With the newly added INTEL_THC_HID, this causes a build warning for a circular dependency: WARNING: unmet direct dependencies detected for HID Depends on [m]: HID_SUPPORT [=y] && INPUT [=m] Selected by [y]: - INTEL_THC_HID [=y] && HID_SUPPORT [=y] && X86_64 [=y] && PCI [=y] && ACPI [=y] WARNING: unmet direct dependencies detected for INPUT_FF_MEMLESS Depends on [m]: INPUT [=m] Selected by [y]: - HID_MICROSOFT [=y] && HID_SUPPORT [=y] && HID [=y] - GREENASIA_FF [=y] && HID_SUPPORT [=y] && HID [=y] && HID_GREENASIA [=y] - HID_WIIMOTE [=y] && HID_SUPPORT [=y] && HID [=y] && LEDS_CLASS [=y] - ZEROPLUS_FF [=y] && HID_SUPPORT [=y] && HID [=y] && HID_ZEROPLUS [=y] Selected by [m]: - HID_ACRUX_FF [=y] && HID_SUPPORT [=y] && HID [=y] && HID_ACRUX [=m] - HID_EMS_FF [=m] && HID_SUPPORT [=y] && HID [=y] - HID_GOOGLE_STADIA_FF [=m] && HID_SUPPORT [=y] && HID [=y] - PANTHERLORD_FF [=y] && HID_SUPPORT [=y] && HID [=y] && HID_PANTHERLORD [=m] It's better to be consistent and always use 'depends on HID' for HID drivers. The notable exception here is USB_KBD/USB_MOUSE, which are alternative implementations that do not depend on the HID subsystem. Do this by extending the "if HID" section below, which means that a few of the duplicate "depends on HID" and "depends on INPUT" statements can be removed in the process. Fixes: 1b2d05384c29 ("HID: intel-thc-hid: Add basic THC driver skeleton") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> Reviewed-by: Even Xu <even.xu@intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2025-02-03HID: lenovo: select CONFIG_ACPI_PLATFORM_PROFILEArnd Bergmann1-0/+2
A previous patch tried to fix this link failure: x86_64-linux-ld: drivers/hid/hid-lenovo.o: in function `lenovo_raw_event': hid-lenovo.c:(.text+0x22c): undefined reference to `platform_profile_cycle' but got it wrong in three ways: - the link failure still exists with CONFIG_ACPI_PLATFORM_PROFILE=m when hid-lenovo is built-in - There is no way to manually enable CONFIG_ACPI_PLATFORM_PROFILE, as it is intended to be selected by its users. Remove the broken #if check again and instead select the symbol like the other users do. This requires adding a dependency on CONFIG_ACPI. Fixes: 52e7d1f7c2fd ("HID: lenovo: Fix undefined platform_profile_cycle in ThinkPad X12 keyboard patch") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2025-01-20Merge branch 'for-6.14/nintendo' into for-linusJiri Kosina1-1/+1
- support for MD/GEN 6B controller (Ryan McClelland)
2025-01-09HID: intel-thc-hid: Add basic THC driver skeletonXinpeng Sun1-0/+2
Create intel-thc-hid folder and add Kconfig and Makefile for THC drivers. Add basic THC device context structure, definitions and related initialization APIs for THC Hardware layer driver. Also initialize regmap struct for future THC registers access. Co-developed-by: Even Xu <even.xu@intel.com> Signed-off-by: Even Xu <even.xu@intel.com> Signed-off-by: Xinpeng Sun <xinpeng.sun@intel.com> Tested-by: Rui Zhang <rui1.zhang@intel.com> Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca> Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Tested-by: Aaron Ma <aaron.ma@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2025-01-09HID: nintendo: add support for md/gen 6B controllerRyan McClelland1-1/+1
The NSO MD/GEN 6B was a Japan-only controller released which has 6 buttons on the face of the controller. This adds support for this controller. It still enumerates just like the 3B controller, but will use extra bits in it's report for the 3 extra controllers. This also changes the events reported to match the letter on the controller for the NSO MD/GEN controller. The VID/PID it reports is the same as the 3B controller. This also removes a comment on the N64 Controllers which didn't mean anything. Signed-off-by: Ryan McClelland <rymcclel@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2024-11-18Merge branch 'for-6.13/corsair' into for-linusJiri Kosina1-0/+3
- support for Corsair Void headset family (Stuart Hayhurst)
2024-11-18Merge branch 'for-6.13/kysona' into for-linusJiri Kosina1-0/+9
- initial vendor-specific driver for Kysona, currently adding support for Kysona M600 (Lode Willems)
2024-11-06HID: rmi: Add select RMI4_F3A in KconfigVincent Huang1-0/+1
Add `select RMI4_F3A` under `HID_RMI` in Kconfig to support buttons and GPIOs on newer Synaptics HID RMI devices. Future devices will use F3A instead of F30, but F30 is still selected for backward compatibility. Signed-off-by: Vincent Huang <vincenth@synaptics.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2024-10-18HID: Kysona: Add basic battery reporting for Kysona M600Lode Willems1-0/+9
In this initial the battery is only probed once, a following patch will add periodic checking. Signed-off-by: Lode Willems <me@lodewillems.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2024-10-11HID: corsair-void: Add Corsair Void headset family driverStuart Hayhurst1-0/+3
Introduce a driver for the Corsair Void family of headsets, supporting: - Battery reporting (power_supply) - Sidetone setting support - Physical microphone location reporting - Headset and receiver firmware version reporting - Built-in alert triggering - USB wireless_status Tested with a Void Pro Wireless, Void Elite Wireless and a Void Elite Wired Signed-off-by: Stuart Hayhurst <stuart.a.hayhurst@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2024-08-19HID: hid-goodix: Add Goodix HID-over-SPI driverCharles Wang1-0/+6
This patch introduces a new driver to support the Goodix GT7986U touch controller. This device is not compatible with Microsoft's HID-over-SPI protocol and therefore needs to implement its own flavor. The data reported is packaged according to the HID protocol but uses SPI for communication to improve speed. This enables the device to transmit not only coordinate data but also corresponding raw data that can be accessed by user-space programs through the hidraw interface. The raw data can be utilized for functions like palm rejection, thereby improving the touch experience. Key features: - Device connection confirmation and initialization - IRQ-based event reporting to the input subsystem - Support for HIDRAW operations (GET_REPORT and SET_REPORT) Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Charles Wang <charles.goodix@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2024-04-03HID: Add WinWing Orion2 throttle supportIvan Gorinov1-0/+16
WinWing Orion2 throttle works with Linux out of box, but the kernel sees only 16 of 47 buttons on the throttle base. This module enables all buttons, and also adds LED controls. Button numbers 0 .. 63 on Orion2 are reserved for throttle grip; the throttle base buttons have numbers 64 .. 110. Linux kernel HID subsystem only supports up to 80 buttons. Remap throttle base buttons to numbers 32 .. 78, reserving only numbers 0 .. 31 for buttons on the grip handle. Changes since v2: - Fixed automatic line wraps added by mail client Changes since v1: - Fixed formatting of descriptor byte array; - Using product codes of Winwing grips in config. Signed-off-by: Ivan Gorinov <ivan.gorinov@jobyaviation.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2024-01-08Merge branch 'for-6.8/nintendo' into for-linusJiri Kosina1-6/+7
- support for Nintendo NSO controllers -- SNES, Genesis and N64 (Ryan McClelland)
2023-12-12HID: nintendo: add support for nso controllersRyan McClelland1-6/+7
This adds support for the nintendo switch online controllers which include the SNES, Genesis, and N64 Controllers. As each nso controller only implements a subset of what a pro controller can do. Each of these 'features' were broken up in to seperate functions which include right stick, left stick, imu, and dpad and depending on the controller type that it is, it will call the supported functions appropriately. Each controller now has a struct which maps the bit within the hid in report to a button. The name given to the device now comes directly from the hid device name rather than looking up a predefined string. Signed-off-by: Ryan McClelland <rymcclel@gmail.com> Reviewed-by: Daniel J. Ogorchock <djogorchock@gmail.com> Tested-by: Daniel J. Ogorchock <djogorchock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2023-11-21HID: mcp2200: added driver for GPIOs of MCP2200Johannes Roith1-0/+9
Added a gpiochip compatible driver to control the 8 GPIOs of the MCP2200 by using the HID interface. Using GPIOs with alternative functions (GP0<->SSPND, GP1<->USBCFG, GP6<->RXLED, GP7<->TXLED) will reset the functions, if set (unset by default). The driver was tested while also using the UART of the chip. Setting and reading the GPIOs has no effect on the UART communication. However, a reset is triggered after the CONFIGURE command. If the GPIO Direction is constantly changed, this will affect the communication at low baud rates. This is a hardware problem of the MCP2200 and is not caused by the driver. Signed-off-by: Johannes Roith <johannes@gnu-linux.rocks> Reviewed-by: Rahul Rameshbabu <sergeantsagara@protonmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-10-23BackMerge tag 'v6.6-rc7' into drm-nextDave Airlie1-0/+2
This is needed to add the msm pr which is based on a higher base. Signed-off-by: Dave Airlie <airlied@redhat.com>
2023-10-04HID: nvidia-shield: Select POWER_SUPPLY Kconfig optionRahul Rameshbabu1-0/+1
Battery information reported by the driver depends on the power supply subsystem. Select the required subsystem when the HID_NVIDIA_SHIELD Kconfig option is enabled. Fixes: 3ab196f88237 ("HID: nvidia-shield: Add battery support for Thunderstrike") Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-09-22Merge tag 'drm-misc-next-2023-09-11-1' of ↵Dave Airlie1-6/+2
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v6.7-rc1: UAPI Changes: - Nouveau changed to not set NO_PREFETCH flag explicitly. Cross-subsystem Changes: - Update documentation of dma-buf intro and uapi. - fbdev/sbus fixes. - Use initializer macros in a lot of fbdev drivers. - Add Boris Brezillon as Panfrost driver maintainer. - Add Jessica Zhang as drm/panel reviewer. - Make more fbdev drivers use fb_ops helpers for deferred io. - Small hid trailing whitespace fix. - Use fb_ops in hid/picolcd Core Changes: - Assorted small fixes to ttm tests, drm/mst. - Documentation updates to bridge. - Add kunit tests for some drm_fb functions. - Rework drm_debugfs implementation. - Update xe documentation to mark todos as completed. Driver Changes: - Add support to rockchip for rv1126 mipi-dsi and vop. - Assorted small fixes to nouveau, bridge/samsung-dsim, bridge/lvds-codec, loongson, rockchip, panfrost, gma500, repaper, komeda, virtio, ssd130x. - Add support for simple panels Mitsubishi AA084XE01, JDI LPM102A188A, - Documentation updates to accel/ivpu. - Some nouveau scheduling/fence fixes. - Power management related fixes and other fixes to ivpu. - Assorted bridge/it66121 fixes. - Make platform drivers return void in remove() callback. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/3da6554b-3b47-fe7d-c4ea-21f4f819dbb6@linux.intel.com
2023-09-18HID: nvidia-shield: add LEDS_CLASS dependencyRandy Dunlap1-0/+1
The hid-nvidia-shield driver uses functions that are built only when LEDS_CLASS is set, so make the driver depend on that symbol to prevent build errors. riscv32-linux-ld: drivers/hid/hid-nvidia-shield.o: in function `.L11': hid-nvidia-shield.c:(.text+0x192): undefined reference to `led_classdev_unregister' riscv32-linux-ld: drivers/hid/hid-nvidia-shield.o: in function `.L113': hid-nvidia-shield.c:(.text+0xfa4): undefined reference to `led_classdev_register_ext' Fixes: 09308562d4af ("HID: nvidia-shield: Initial driver implementation with Thunderstrike support") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Rahul Rameshbabu <rrameshbabu@nvidia.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com> Cc: linux-input@vger.kernel.org Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-09-05hid/picolcd: Use fb_ops helpers for deferred I/OThomas Zimmermann1-5/+1
Generate callback functions for struct fb_ops with the fbdev macro FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS(). Initialize struct fb_ops to the generated functions with an fbdev initializer macro. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Jiri Kosina <jikos@kernel.org> Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com> Cc: "Bruno Prémont" <bonbons@linux-vserver.org> Acked-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230828132131.29295-7-tzimmermann@suse.de
2023-09-05hid: Remove trailing whitespaceThomas Zimmermann1-1/+1
Fix coding style in Kconfig. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Jiri Kosina <jikos@kernel.org> Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230828132131.29295-6-tzimmermann@suse.de
2023-08-31Merge branch 'for-6.6/steelseries' into for-linusBenjamin Tissoires1-2/+4
Add support for the Steelseries Arctis 1 XBox headset by Bastien Nocera
2023-08-14HID: hid-google-stadiaff: add support for Stadia force feedbackFabio Baltieri1-0/+7
Add a hid-google-stadiaff module to support rumble based force feedback on the Google Stadia controller. This works using the HID output endpoint exposed on both the USB and BLE interface. Signed-off-by: Fabio Baltieri <fabiobaltieri@chromium.org> Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14HID: steelseries: Add support for Arctis 1 XBoxBastien Nocera1-2/+4
Add support for the Steelseries Arctis 1 XBox headset. This driver will export the battery information from the headset, as well as the "wireless_status" property. Signed-off-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-06-27Merge branch 'for-6.5/nvidia' into for-linusJiri Kosina1-0/+18
- support for nVidia Thunderstrike (SHIELD 2017) controller (Rahul Rameshbabu)
2023-06-09HID: nvidia-shield: Initial driver implementation with Thunderstrike supportRahul Rameshbabu1-0/+18
Supports the Thunderstrike (SHIELD 2017) controller. Implements support for the Thunderstrike HOSTCMD firmware interface. Adds sysfs attributes about a SHIELD device and introduces haptics support for controllers. Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-06-09HID: uclogic: Modular KUnit tests should not depend on KUNIT=yGeert Uytterhoeven1-1/+1
While KUnit tests that cannot be built as a loadable module must depend on "KUNIT=y", this is not true for modular tests, where it adds an unnecessary limitation. Fix this by relaxing the dependency to "KUNIT". Fixes: 08809e482a1c44d9 ("HID: uclogic: KUnit best practices and naming conventions") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: David Gow <davidgow@google.com> Reviewed-by: José Expósito <jose.exposito89@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-03-10HID: topre: Add support for 87 keys Realforce R2Alessandro Manca1-1/+1
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>
2023-02-22Merge branch 'for-6.3/hid-bpf' into for-linusBenjamin Tissoires1-5/+14
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 bf7660dab30d ("HID: stop drivers from selecting CONFIG_HID") conflicts with commit 2afac81dd165 ("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
2023-02-22Merge branch 'for-6.3/steam' into for-linusBenjamin Tissoires1-2/+10
Add Steam Deck support (Vicki Pfau)
2023-02-22Merge branch 'for-6.3/evision' into for-linusBenjamin Tissoires1-0/+7
New hid-evision driver for EVision keyboards (Philippe Valembois)
2023-02-22Merge branch 'for-6.3/hid-core' into for-linusBenjamin Tissoires1-0/+1
- 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)
2023-02-06HID: evision: Add preliminary support for EVision keyboardsPhilippe Valembois1-0/+7
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>
2023-02-06HID: hid-steam: Add rumble on DeckVicki Pfau1-0/+8
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>
2023-02-06HID: hid-steam: Add Steam Deck supportVicki Pfau1-2/+2
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>
2022-12-20HID: input: map battery system chargingJosé Expósito1-0/+1
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>
2022-12-19HID: playstation: fix free of uninialized pointer for DS4 in Bluetooth.Roderick Colenbrander1-1/+1
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: 2d77474a2392 ("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
2022-11-21HID: force HID depending on INPUTBenjamin Tissoires1-0/+1
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: 25621bcc8976 ("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>
2022-11-15HID: initial BPF implementationBenjamin Tissoires1-0/+2
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>
2022-11-15HID: Kconfig: split HID support and hid-core compilationBenjamin Tissoires1-5/+11
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>
2022-10-18HID: mcp2221: add ADC/DAC support via iio subsystemMatt Ranostay1-0/+1
Add support for 3x 10-bit ADC and 1x DAC channels registered via the iio subsystem. To prevent breakage and unexpected dependencies this support only is only built if CONFIG_IIO is enabled, and is only weakly referenced by 'imply IIO' within the respective Kconfig. Additionally the iio device only gets registered if at least one channel is enabled in the power-on configuration read from SRAM. Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-10-18HID: mcp2221: change 'select GPIOLIB' to implyMatt Ranostay1-1/+1
To avoid recursive dependencies on GPIOLIB when 'imply IIO' is requested with other drivers we should switch GPIOLIB to an imply. This isn't the most ideal solution but avoids modifiying the Kconfig for other drivers, and only requires a singular IS_REACHABLE(CONFIG_GPIOLIB) check. Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-10-05Merge branch 'for-6.1/uclogic' into for-linusBenjamin Tissoires1-1/+1
- Add UGEEv2 support (XP-PEN Deco Pro S and Parblo A610 PRO) (José Expósito)
2022-10-05Merge branch 'for-6.1/rc-controllers' into for-linusBenjamin Tissoires1-0/+19
- Support for various RC controllers (Marcus Folkesson)
2022-10-05Merge branch 'for-6.1/topre' into for-linusBenjamin Tissoires1-0/+6
- Fix Topre REALFORCE R2 keyboard so it can send more than 6 keys at the time (Harry Stern)
2022-09-20hid: topre: Add driver fixing report descriptorHarry Stern1-0/+6
The Topre REALFORCE R2 firmware incorrectly reports that interface descriptor number 1, input report descriptor 2's events are array events rather than variable events. That particular report descriptor is used to report keypresses when there are more than 6 keys held at a time. This bug prevents events from this interface from being registered properly, so only 6 keypresses (from a different interface) can be registered at once, rather than full n-key rollover. This commit fixes the bug by setting the correct value in a report_fixup function. The original bug report can be found here: Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/804 Thanks to Benjamin Tissoires for diagnosing the issue with the report descriptor. Signed-off-by: Harry Stern <harry@harrystern.net> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Link: https://lore.kernel.org/r/20220911003614.297613-1-harry@harrystern.net
2022-09-20HID: Add driver for PhoenixRC Flight ControllerMarcus Folkesson1-0/+9
The PhoenixRC is a controller with 8 channels for use in flight simulators. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Link: https://lore.kernel.org/r/20220914184345.270456-1-marcus.folkesson@gmail.com
2022-09-20HID: Add driver for VRC-2 Car ControllerMarcus Folkesson1-0/+10
VRC-2 is 2-axis controller often used in car simulators. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Link: https://lore.kernel.org/r/20220902082552.2433744-2-marcus.folkesson@gmail.com
2022-08-25HID: Kconfig: remove redundant "depends on HID" linesRandy Dunlap1-72/+1
Remove all occurrences of "depends on HID" that are inside the "if HID" / "endif" block since they are redundant. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jiri Kosina <jikos@kernel.org> Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com> Cc: linux-input@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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