Add a void *user_data pointer to the input callback structure. This is
useful for driver to get back the driver data structure and avoid
defining wrapper functions.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Change the input callback function name to make it easier to identify
what it belongs to. This clears some ambiguity when observing the symbol
names corresponding to the function pointers in the callback section.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Change row and col static types to unsigned, this should prevent really
bad things from happening if a negative number ends up there for
whatever reasons without having to explicitly check for < 0.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Add a "input kbd_matrix_state" shell command. This prints the state of
a keyboard matrix in a much more compact representation than the normal
input event dump, but also keeps track of any key seen during the
execution and reports that on the "off" command. The output can be used
to help setting the actual-key-mask property.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Looking back at the current INPUT_LISTENER_CB_DEFINE api naming, it
feels like it's a bit overloaded. Rename it to a simpler
INPUT_CALLBACK_DEFINE.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Add two input subsystem options: one for dumping input events, one for
triggering input reports from the shell.
The two are independent from each other, so dumping can be enabled on
any application that has no shell, but if the shell command is present
logging can be toggled on and off with a shell command.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
