dm: video: correctly set the cursor position
The terminal escape sequence ESC [ <x> ; <y> H is used to set the cursor
position. According to the ECMA 48 standard the upper left corner in the
escape sequences is [1, 1]. The video uclass uses [0, 0] as upper left
corner.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/vidconsole-uclass.c b/drivers/video/vidconsole-uclass.c
index 1874887..db40a13 100644
--- a/drivers/video/vidconsole-uclass.c
+++ b/drivers/video/vidconsole-uclass.c
@@ -272,6 +272,14 @@
s++; /* ; */
s = parsenum(s, &col);
+ /*
+ * Video origin is [0, 0], terminal origin is [1, 1].
+ */
+ if (row)
+ --row;
+ if (col)
+ --col;
+
set_cursor_position(priv, row, col);
break;