ra8_display_pal_lcd.h File Reference

LCD backend (ra8_glcdc) for the display PAL. More...

#include "ra8_display_pal.h"

Include dependency graph for ra8_display_pal_lcd.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Variables
const display_backend_iface_t	k_display_backend_lcd_ra8_glcdc
	LCD backend vtable – pass its address through display_cfg_t.iface to drive the EK-RA8D2 panel.

Detailed Description

LCD backend (ra8_glcdc) for the display PAL.

Tag

[Ring 4 / PAL] {World: NS}

Exports the const display_backend_iface_t instance that wraps libs/ra8_hal/src/ra8_glcdc.c plus the EK-RA8D2 panel power-on sequence. Apps select this backend by setting display_cfg_t.iface = &k_display_backend_lcd_ra8_glcdc; – the rest of the PAL API is identical regardless of which backend is bound.

Copyright

Copyright (c) 2026 Brighton Sikarskie SPDX-License-Identifier: MIT

Since

0.1.0

Definition in file ra8_display_pal_lcd.h.

Variable Documentation

k_display_backend_lcd_ra8_glcdc

const display_backend_iface_t k_display_backend_lcd_ra8_glcdc

extern

LCD backend vtable – pass its address through display_cfg_t.iface to drive the EK-RA8D2 panel.

The vtable's init callback runs the full GLCDC bring-up:

1. ra8_board_lcd_panel_power_on – toggle RESET_L low/high and assert BLEN.
2. ra8_board_glcdc_init(k_ra8_board_glcdc_fmt_rgb888) – pin and clock setup for the parallel-RGB bus.
3. 200 ms settle delay (panel POR + pin direction).
4. ra8_glcdc_init with the caller's framebuffer / dimensions.
5. ra8_glcdc_set_background_color(0x000000) – BG plane black.
6. ra8_glcdc_start(true) – enable scan-out.
7. ra8_glcdc_layer1_show – expose Graphics 1 over the FB.

The matching deinit callback turns the panel back off.

Note

Only one display can be initialised at a time; calling display_init while a previous handle is still live returns k_ra8_err_busy.

Since

0.1.0

Definition at line 566 of file ra8_display_pal_lcd.c.