graphics/input: Add getevent input event monitor tool.

Add getevent utility for monitoring input events including
mouse clicks/movement, multi-touch coordinates/pressure,
and keyboard key presses. Supports automatic device detection
in /dev and command-line device path specification with
non-blocking I/O.

Signed-off-by: liuhongchao <liuhongchao@xiaomi.com>

Author: HongChao6

graphics/input/CMakeLists.txt

@@ -62,3 +62,17 @@ if(CONFIG_GRAPHICS_INPUT_TOOL)
     SRCS
     generator/input.c)
 endif()
+
+if(CONFIG_GRAPHICS_INPUT_GETEVENT)
+  nuttx_add_application(
+    MODULE
+    ${CONFIG_GRAPHICS_INPUT_GETEVENT}
+    NAME
+    getevent
+    STACKSIZE
+    ${CONFIG_GRAPHICS_INPUT_GETEVENT_STACKSIZE}
+    PRIORITY
+    ${CONFIG_GRAPHICS_INPUT_GETEVENT_PRIORITY}
+    SRCS
+    getevent/getevent.c)
+endif()

graphics/input/Kconfig

@@ -59,3 +59,39 @@ config GRAPHICS_INPUT_TOOL_PRIORITY
 		The priority of the input task.
 
 endif # GRAPHICS_INPUT_TOOL
+
+menuconfig GRAPHICS_INPUT_GETEVENT
+	tristate "Enable getevent tool"
+	default n
+	---help---
+		The getevent is a command-line input event monitor. It
+		captures and displays real-time events from mouse,
+		touchscreen, and keyboard devices via the input subsystem.
+
+		Use getevent to debug and verify input drivers, inspect
+		raw event data during device bring-up, or diagnose
+		input issues on a running system. It supports automatic
+		device detection in /dev as well as manual device path
+		specification.
+
+if GRAPHICS_INPUT_GETEVENT
+
+config GRAPHICS_INPUT_GETEVENT_STACKSIZE
+	int "getevent stack size"
+	default DEFAULT_TASK_STACKSIZE
+	---help---
+		The size of stack allocated for the getevent task.
+
+config GRAPHICS_INPUT_GETEVENT_PRIORITY
+	int "getevent priority"
+	default 100
+	---help---
+		The priority of the getevent task.
+
+config GRAPHICS_INPUT_GETEVENT_DETAIL_INFO
+	bool "getevent detail info"
+	default n
+	---help---
+		Enable detailed information in getevent output.
+
+endif # GRAPHICS_INPUT_GETEVENT

graphics/input/Make.defs

@@ -20,6 +20,6 @@
 #
 ############################################################################
 
-ifneq ($(CONFIG_GRAPHICS_INPUT_GENERATOR),)
+ifneq ($(CONFIG_GRAPHICS_INPUT_GENERATOR)$(CONFIG_GRAPHICS_INPUT_GETEVENT),)
 CONFIGURED_APPS += $(APPDIR)/graphics/input
 endif

graphics/input/Makefile

@@ -50,4 +50,16 @@ MODULE    += $(CONFIG_GRAPHICS_INPUT_TOOL)
 MAINSRC   += generator/input.c
 endif
 
+# getevent tool
+
+ifneq ($(CONFIG_GRAPHICS_INPUT_GETEVENT),)
+PROGNAME  += getevent
+PRIORITY  += $(CONFIG_GRAPHICS_INPUT_GETEVENT_PRIORITY)
+STACKSIZE += $(CONFIG_GRAPHICS_INPUT_GETEVENT_STACKSIZE)
+MODULE    += $(CONFIG_GRAPHICS_INPUT_GETEVENT)
+
+MAINSRC   += getevent/getevent.c
+CFLAGS    += -Wno-discarded-qualifiers
+endif
+
 include $(APPDIR)/Application.mk