drivers/display/Kconfig.mcux_elcdif

# Copyright 2019,2023 NXP
# Copyright (c) 2022, Basalte bv
# SPDX-License-Identifier: Apache-2.0


menuconfig DISPLAY_MCUX_ELCDIF
	bool "MCUX eLCDIF driver"
	default y
	depends on DT_HAS_NXP_IMX_ELCDIF_ENABLED
	help
	  Enable support for mcux eLCDIF driver.

if DISPLAY_MCUX_ELCDIF

config MCUX_ELCDIF_FB_NUM
	int "Framebuffers to allocate in driver"
	default 2
	range 0 2
	help
	  Number of framebuffers to allocate in ELCDIF driver. Driver allocated
	  framebuffers are required to support partial display updates.
	  The driver has been validated to support 0 through 2 framebuffers.
	  Note that hardware will likely perform best if zero driver
	  framebuffers are allocated by the driver, and the application
	  implements double framebuffering by always calling display_write with
	  a buffer equal in size to the connected panel.

	  NOTE: when no framebuffers are allocated, the ELCDIF will be
	  set to display an empty buffer during initialization. This means
	  the display will show what is effectively a dump of
	  system RAM until a new framebuffer is written. If the security
	  implications of this concern you, leave at least one driver
	  framebuffer enabled.

config MCUX_ELCDIF_FB_SIZE
	int "Framebuffer size required by the eLCDIF driver"
	default 3686400
	help
	  eLCDIF driver allocates framebuffers to support partial display updates.
	  The framebuffer size is computed as : panel_width * panel_height * bpp.
	  The default value is set to afford for a default resolution of 1280x720 and
	  4-bytes pixel format, e.g. ARGB8888. Applications should change this value
	  according to the actual used resolution and format to optimize the heap size.

config MCUX_ELCDIF_PXP
	bool "Use PXP for display rotation"
	depends on MCUX_PXP
	depends on (MCUX_ELCDIF_FB_NUM > 0)
	help
	  Use the PXP for display rotation. This requires the LCDIF node
	  have a "nxp,pxp" devicetree property pointing to the PXP device node.
	  The ELCDIF will only utilize the PXP to rotate frames if
	  display_write is called with a framebuffer equal in size to the
	  display.

if MCUX_ELCDIF_PXP

choice MCUX_ELCDIF_PXP_ROTATE_DIRECTION
	default MCUX_ELCDIF_PXP_ROTATE_0
	prompt "Rotation angle of PXP"
	help
	  Set rotation angle of PXP. The ELCDIF cannot detect the correct
	  rotation angle based on the call to display_write, so the user
	  should configure it here.

config MCUX_ELCDIF_PXP_ROTATE_0
	bool "Rotate display by 0 degrees"
	help
	  Rotate display by 0 degrees. Primarily useful for testing,
	  production applications should simply disable the PXP.

config MCUX_ELCDIF_PXP_ROTATE_90
	bool "Rotate display by 90 degrees"
	help
	  Rotate display clockwise by 90 degrees

config MCUX_ELCDIF_PXP_ROTATE_180
	bool "Rotate display by 180 degrees"
	help
	  Rotate display clockwise by 180 degrees

config MCUX_ELCDIF_PXP_ROTATE_270
	bool "Rotate display by 270 degrees"
	help
	  Rotate display clockwise by 270 degrees

endchoice

endif # MCUX_ELCDIF_PXP

endif # DISPLAY_MCUX_ELCDIF