# STM32 LTDC display driver configuration options

# Copyright (c) 2022 Byte-Lab d.o.o. <dev@byte-lab.com>
# SPDX-License-Identifier: Apache-2.0

menuconfig STM32_LTDC
	bool "STM32 LCD-TFT display controller driver"
	default y
	depends on DT_HAS_ST_STM32_LTDC_ENABLED
	select USE_STM32_HAL_LTDC
	select CACHE_MANAGEMENT if CPU_HAS_DCACHE
	help
	  Enable driver for STM32 LCT-TFT display controller periheral.

if STM32_LTDC

choice STM32_LTDC_PIXEL_FORMAT
	prompt "Color pixel format"
	default STM32_LTDC_RGB565
	depends on STM32_LTDC
	help
	  Specify the color pixel format for the STM32 LCD-TFT display controller.

config STM32_LTDC_ARGB8888
	bool "ARGB8888"
	help
	  One pixel consists of 8-bit alpha, 8-bit red, 8-bit green and 8-bit blue value
	  (4 bytes per pixel)

config STM32_LTDC_RGB888
	bool "RGB888"
	help
	  One pixel consists of 8-bit red, 8-bit green and 8-bit blue value
	  (3 bytes per pixel)

config STM32_LTDC_RGB565
	bool "RGB565"
	help
	  One pixel consists of 5-bit red, 6-bit green and 5-bit blue value
	  (2 bytes per pixel)

endchoice

config STM32_LTDC_FB_NUM
	int "Frame buffer number"
	default 1
	range 0 2
	help
	  STM32 LTDC frame buffer number config:
	    - 0 frame buffer maintained by application, must write with full screen pixels.
	    - 1 single frame buffer in stm32 ltdc driver.
	    - 2 double frame buffer in stm32 ltdc driver.

config STM32_LTDC_DISABLE_FMC_BANK1
	bool "Disable FMC bank1 for STM32F7/H7 series"
	depends on SOC_SERIES_STM32H7X || SOC_SERIES_STM32F7X
	default y
	help
	  Disable FMC bank1 if not used to prevent speculative read accesses.
	  Refer to AN4861 "4.6 Special recommendations for Cortex-M7 (STM32F7/H7)".

endif # STM32_LTDC