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 --- v2 remove trailing whitespace --- drivers/video/vidconsole-uclass.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/video/vidconsole-uclass.c b/drivers/video/vidconsole-uclass.c index 1874887f2f3..5564cfe9930 100644 --- a/drivers/video/vidconsole-uclass.c +++ b/drivers/video/vidconsole-uclass.c @@ -271,6 +271,14 @@ static void vidconsole_escape_char(struct udevice *dev, char ch) s = parsenum(s, &row); 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);