video: Provide a signal when a new console line is started
When we start a new line (due to the user pressing return), signal this to
the driver so that it can flush its buffer of character positions.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/vidconsole-uclass.c b/drivers/video/vidconsole-uclass.c
index 884db01..bea563a 100644
--- a/drivers/video/vidconsole-uclass.c
+++ b/drivers/video/vidconsole-uclass.c
@@ -47,6 +47,15 @@
return ops->set_row(dev, row, clr);
}
+static int vidconsole_entry_start(struct udevice *dev)
+{
+ struct vidconsole_ops *ops = vidconsole_get_ops(dev);
+
+ if (!ops->entry_start)
+ return -ENOSYS;
+ return ops->entry_start(dev);
+}
+
/* Move backwards one space */
static void vidconsole_back(struct udevice *dev)
{
@@ -82,6 +91,8 @@
vid_priv->colour_bg);
priv->ycur -= rows * priv->y_charsize;
}
+ priv->last_ch = 0;
+
video_sync(dev->parent);
}
@@ -99,6 +110,7 @@
break;
case '\n':
vidconsole_newline(dev);
+ vidconsole_entry_start(dev);
break;
case '\t': /* Tab (8 chars alignment) */
priv->xcur_frac = ((priv->xcur_frac / priv->tab_width_frac)
@@ -109,6 +121,7 @@
break;
case '\b':
vidconsole_back(dev);
+ priv->last_ch = 0;
break;
default:
/*
@@ -125,6 +138,7 @@
if (ret < 0)
return ret;
priv->xcur_frac += ret;
+ priv->last_ch = ch;
if (priv->xcur_frac >= priv->xsize_frac)
vidconsole_newline(dev);
break;