erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

lib: Integrate splash text rendering into low-battery/off-mode boot

Browse source 
Enable rendering of system status messages during the `low-battery`
bootsplash sequence when `FRAMEBUFFER_SPLASH_TEXT` Kconfig is enabled.

This change adds a 32-byte buffer to capture platform-specific text
(such as battery status) and draws it at the footer of the framebuffer
alongside the logo.

TEST=Able to build and boot google/fatcat.

Change-Id: I298804869eb909201a9056b83e4954e223e2b9bb
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91093
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
This commit is contained in:
Subrata Banik 2026-02-04 20:52:35 +05:30
commit c1db700d43
1 changed files with 17 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

17
src/lib/render_bmp.c
View file

@ -10,6 +10,8 @@
#include "render_bmp.h"
#define MAX_SPLASH_TEXT_WIDTH 32
static bool is_bmp_image_valid(struct bmp_image_header *header)
{
/* Check if the BMP Header Signature is valid */
@ -708,6 +710,13 @@ void render_logo_to_framebuffer(struct logo_config *config)
if (load_and_render_logo_to_framebuffer(BOOTSPLASH_LOW_BATTERY, config) != 0) {
printk(BIOS_ERR, "%s: Failed to render low-battery logo.\n", __func__);
}
/* Display Text message at the footer of splash screen if supported */
if (CONFIG(FRAMEBUFFER_SPLASH_TEXT)) {
char msg[MAX_SPLASH_TEXT_WIDTH];
if (platform_get_splash_text(BOOTSPLASH_LOW_BATTERY, msg, MAX_SPLASH_TEXT_WIDTH))
render_text_to_framebuffer(config, msg, BOOTSPLASH_TEXT_FOOTER);
}
return;
}
@ -718,6 +727,14 @@ void render_logo_to_framebuffer(struct logo_config *config)
if (platform_is_off_mode_charging_active()) {
if (load_and_render_logo_to_framebuffer(BOOTSPLASH_OFF_MODE_CHARGING, config) != 0)
printk(BIOS_ERR, "%s: Failed to render off-mode charging logo.\n", __func__);
/* Display Text message at the footer of splash screen if supported */
if (CONFIG(FRAMEBUFFER_SPLASH_TEXT)) {
char msg[MAX_SPLASH_TEXT_WIDTH];
if (platform_get_splash_text(BOOTSPLASH_OFF_MODE_CHARGING, msg,
MAX_SPLASH_TEXT_WIDTH))
render_text_to_framebuffer(config, msg, BOOTSPLASH_TEXT_FOOTER);
}
return;
}