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# 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