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video: Provide an idle function for the console

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Add a way to tell the console that the machine is idle. This will be
used (later) to show the cursor.

Call the video console sync after that, so that any updates are shown.

Keep the video_sync_all() for the case where CONFIG_CURSOR is not
enabled, to reduce code size.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-09-18 07:43:37 -06:00
parent 2ce18b5a14
commit 4f5c8dcf7b
3 changed files with 25 additions and 1 deletions
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4
drivers/video/vidconsole-uclass.c
View File

@@ -837,3 +837,7 @@ void vidconsole_set_bitmap_font(struct udevice *dev,
}
vc_priv->xstart_frac = 0;
}
void vidconsole_idle(struct udevice *dev)
{
}

15
drivers/video/video-uclass.c
View File

@@ -621,7 +621,20 @@ int video_default_font_height(struct udevice *dev)
static void video_idle(struct cyclic_info *cyc)
{
video_sync_all();
if (CONFIG_IS_ENABLED(CURSOR)) {
struct udevice *cons;
struct uclass *uc;
/* Handle cursor display for each video console */
uclass_id_foreach_dev(UCLASS_VIDEO_CONSOLE, cons, uc) {
if (device_active(cons)) {
vidconsole_idle(cons);
video_sync(cons->parent, true);
}
}
} else {
video_sync_all();
}
}
void video_set_white_on_black(struct udevice *dev, bool white_on_black)