| # Copyright 2023 NXP |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| |
| menuconfig DISPLAY_MCUX_DCNANO_LCDIF |
| bool "MCUX DCNano LCDIF driver" |
| default y |
| depends on DT_HAS_NXP_DCNANO_LCDIF_ENABLED |
| help |
| Enable support for mcux DCNano LCDIF driver. |
| |
| |
| if DISPLAY_MCUX_DCNANO_LCDIF |
| |
| config MCUX_DCNANO_LCDIF_DOUBLE_FRAMEBUFFER |
| bool "Double framebuffer" |
| help |
| Enable dual framebuffer for LCDIF peripheral. Two framebuffers |
| will be allocated, and switched between for each frame. |
| Note that for partial display updates, the prior framebuffer must |
| be copied into the next one. This can have significant performance |
| impact. |
| |
| config MCUX_DCNANO_LCDIF_MAINTAIN_CACHE |
| bool "Maintain cache coherency" |
| default y |
| help |
| Maintain cache coherency for LCDIF framebuffer. This is generally |
| required, unless an external framebuffer is utilized with custom |
| caching settings, or caching is disabled. |
| |
| config MCUX_DCNANO_LCDIF_EXTERNAL_FB_MEM |
| bool "Use external memory for framebuffer" |
| imply MEMC |
| help |
| Use external memory for framebuffer. Configures the LCDIF to write |
| framebuffer data to a memory mapped external device. |
| |
| Note that no specific linker section is used for this framebuffer, so |
| if the application uses the external memory for other purposes, care |
| should be taken to ensure that the memory allocated for the LCDIF |
| does not overlap with other data. Each allocated LCDIF buffer will |
| utilize (lcd_width * lcd_height * bytes_per_pixel) bytes of data, |
| and buffers will be allocated contiguously. |
| |
| if MCUX_DCNANO_LCDIF_EXTERNAL_FB_MEM |
| |
| config MCUX_DCNANO_LCDIF_EXTERNAL_FB_ADDR |
| hex "LCDIF framebuffer address" |
| help |
| Address of memory mapped external framebuffer. |
| Must be 128 byte aligned |
| |
| endif # MCUX_DCNANO_LCDIF_EXTERNAL_FB_MEM |
| |
| endif # DISPLAY_MCUX_ELCDIF |
