input: Q10 BlackBerry Keyboard from Solder Party

This adds support for the Q10 BlackBerry based keyboard
from Solder Party. https://www.solder.party/docs/keyboard-pmod/

They keyboard device registered at /dev/kbdN is fully compatible
with hidkbd and has been testing with the Keyboard FeatherWing
on the nRF52 platform.

The buttons are added as a standard discrete joystick if
optionally enabled.  The PMOD variant of this does not
include these buttons, but the Keyboard FeatherWing does.
This joystick is usually defined at /dev/djoyN and
can be used with the djoy example application.

Signed-off-by: Brennan Ashton <bashton@brennanashton.com>

drivers/input/Kconfig

@@ -514,4 +514,36 @@ config NUNCHUCK_NPOLLWAITERS
 
 endif # INPUT_NUNCHUCK
 
+config INPUT_SPQ10KBD
+	bool "Solder Party Q10 BlackBerry Keyboard"
+	default n
+	select I2C
+	---help---
+		Enable the Solder Party Q10 BlackBerry Keyboard support.  This
+		exposes itself as a standard keyboard at /dev/kbdN.
+		This keyboard exists both as a standalone module and integrated
+		into the Solder Party Keyboard FeatherWing.  Information on this
+		can be found at https://www.solder.party/docs/keyboard-pmod/
+
+if INPUT_SPQ10KBD
+
+config SPQ10KBD_DJOY
+    bool "Joystick Interface for Buttons"
+	select DJOYSTICK
+	default n
+
+config SPQ10KBD_REGDBG
+	bool "Keyboard Register Debug"
+	default n
+
+config SPQ10KBD_BUFSIZE
+	int "Keyboard Buffer Size"
+	default 10
+
+config SPQ10KBD_NPOLLWAITERS
+	int "Max Number of Poll Waiters"
+	default 2
+
+endif # INPUT_SPQ10KBD
+
 endif # INPUT

drivers/input/Make.defs

@@ -99,6 +99,10 @@ ifeq ($(CONFIG_INPUT_NUNCHUCK),y)
   CSRCS += nunchuck.c
 endif
 
+ifeq ($(CONFIG_INPUT_SPQ10KBD),y)
+  CSRCS += spq10kbd.c
+endif
+
 # Include input device driver build support
 
 DEPPATH += --dep-path input