drivers/ili9341 : Expose to Kconfig

Group display drivers in menuconfig.

drivers/Kconfig

@@ -19,17 +19,20 @@ rsource "motor_driver/Kconfig"
 rsource "my9221/Kconfig"
 endmenu # Actuator Device Drivers
 
+menu "Display Device Drivers"
+rsource "disp_dev/Kconfig"
+rsource "dsp0401/Kconfig"
+rsource "hd44780/Kconfig"
+rsource "ili9341/Kconfig"
+endmenu # Display Device Drivers
+
 menu "Miscellaneous Device Drivers"
 rsource "at/Kconfig"
 rsource "at24mac/Kconfig"
-rsource "disp_dev/Kconfig"
 rsource "ds1307/Kconfig"
 rsource "ds3231/Kconfig"
 rsource "ds3234/Kconfig"
-rsource "dsp0401/Kconfig"
 rsource "edbg_eui/Kconfig"
-rsource "hd44780/Kconfig"
-rsource "ili9341/Kconfig"
 rsource "io1_xplained/Kconfig"
 rsource "uart_half_duplex/Kconfig"
 endmenu # Miscellaneous Device Drivers

drivers/ili9341/Kconfig

@@ -13,3 +13,47 @@ config MODULE_ILI9341
     select MODULE_PERIPH_SPI
     select MODULE_PERIPH_GPIO
     select MODULE_XTIMER
+
+menuconfig KCONFIG_USEMODULE_ILI9341
+    bool "Configure ILI9341 driver"
+    depends on USEMODULE_ILI9341
+    help
+        Configure the ILI9341 display driver using Kconfig.
+
+if KCONFIG_USEMODULE_ILI9341
+
+config ILI9341_GVDD
+    int "GVDD voltage level (in millivolts)"
+    default 4800
+    range 3000 6000
+    help
+        Configure GVDD level, which is a reference level for the VCOM level and
+        the grayscale voltage level. GVDD should be ≦ (AVDD - 0.5) V .
+
+config ILI9341_VCOMH
+    int "VCOMH voltage level (in millivolts)"
+    default 4250
+    range 2700 5875
+    help
+        Configure the high level of VCOM AC voltage. VCOM needs to be adjusted
+        to match the capacitance and performance specifications of the TFT panel
+        to maximize contrast and minimize flickering
+
+config ILI9341_VCOML
+    int "VCOML voltage level (in millivolts)"
+    default -2000
+    range -2500 0
+    help
+        Configure the low level of VCOM AC voltage. VCOM needs to be adjusted to
+        match the capacitance and performance specifications of the TFT panel to
+        maximize contrast and minimize flickering
+
+config ILI9341_LE_MODE
+    bool "Enable little endian to big endian conversion"
+    help
+        Enable this configuration to convert little endian colors to big endian.
+        ILI9341 device requires colors to be send in big endian RGB-565 format.
+        Enabling this option allows for little endian colors. Enabling this
+        however will slow down the driver as it cannot use DMA anymore.
+
+endif # KCONFIG_USEMODULE_ILI9341

tests/driver_ili9341/Makefile

@@ -4,10 +4,13 @@ include ../Makefile.tests_common
 USEMODULE += ili9341
 USEMODULE += xtimer
 
-CFLAGS += -DCONFIG_ILI9341_LE_MODE
-
 include $(RIOTBASE)/Makefile.include
 
+# Check if being configured via Kconfig
+ifndef CONFIG_KCONFIG_USEMODULE_ILI9341
+CFLAGS += -DCONFIG_ILI9341_LE_MODE
+endif
+
 # The AVR architecture stores the image in the RAM, this usually doesn't fit.
 # This flag excludes the image from the test
 ifneq (,$(filter arch_avr8,$(FEATURES_USED)))