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4 Commits

Author SHA1 Message Date
Rahul Rameshbabu
8bcf314b92 HID: nvidia-shield: Pack inner/related declarations in HOSTCMD reports 
Match alignment information in composite type declarations used by packed
HOSTCMD report structures. Compiler packing attribute is not recursive for
inner declarations. Mismatched alignment information can cause undefined
behavior in code generated for accessing composite type members. struct
pointers passed to thunderstrike_parse_board_info_payload and
thunderstrike_parse_haptics_payload are an example of this being
potentially problematic since alignment information from the packed HOSTCMD
report is lost.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202307041500.6bKn7nCl-lkp@intel.com/
Link: https://github.com/llvm/llvm-project/issues/55520#issuecomment-1128617570
Link: https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/Common-Type-Attributes.html#index-packed-type-attribute
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Link: https://lore.kernel.org/r/20230705060414.581468-1-rrameshbabu@nvidia.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
 2023-07-09 12:47:58 +02:00
Rahul Rameshbabu
f88af60e74 HID: nvidia-shield: Support LED functionality for Thunderstrike 
Expose the 2017 SHIELD controller (Thunderstrike) LED through the kernel
LED API.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
 2023-06-09 17:52:42 +02:00
Rahul Rameshbabu
13d02c69e4 HID: nvidia-shield: Add mappings for consumer HID USAGE buttons 
Map Android Home, Back, Search, VolumeUp, VolumeDown, and PlayPause buttons
to the appropriate input event codes.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
 2023-06-09 17:52:42 +02:00
Rahul Rameshbabu
09308562d4 HID: nvidia-shield: Initial driver implementation with Thunderstrike support 
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>
 2023-06-09 17:45:31 +02:00