From: Simon Glass <sjg@chromium.org> Implement the mark_start() method for the truetype console by recording which pos[] record corresponds to this event. We can be sure that the user will not be able to backspace past this point. Signed-off-by: Simon Glass <sjg@chromium.org> --- drivers/video/console_truetype.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/video/console_truetype.c b/drivers/video/console_truetype.c index d87b3828bb0..edd2eb0a309 100644 --- a/drivers/video/console_truetype.c +++ b/drivers/video/console_truetype.c @@ -173,6 +173,8 @@ struct console_tt_metrics { * start of the current command line. * @pos_ptr: Current position in the position history * @cur_fontdata: Current fixed font data (NULL if using TrueType) + * @pos_start: Value of pos_ptr when the cursor is at the start of the text + * being entered by the user */ struct console_tt_priv { struct console_tt_metrics *cur_met; @@ -181,6 +183,7 @@ struct console_tt_priv { struct pos_info pos[POS_HISTORY_SIZE]; int pos_ptr; struct video_fontdata *cur_fontdata; + int pos_start; }; /** @@ -1060,6 +1063,15 @@ const char *console_truetype_get_font_size(struct udevice *dev, uint *sizep) } } +static int truetype_mark_start(struct udevice *dev) +{ + struct console_tt_priv *priv = dev_get_priv(dev); + + priv->pos_start = priv->pos_ptr; + + return 0; +} + static int console_truetype_probe(struct udevice *dev) { struct console_tt_priv *priv = dev_get_priv(dev); @@ -1106,6 +1118,7 @@ struct vidconsole_ops console_truetype_ops = { .entry_save = truetype_entry_save, .entry_restore = truetype_entry_restore, .get_cursor_info = truetype_get_cursor_info, + .mark_start = truetype_mark_start, }; U_BOOT_DRIVER(vidconsole_truetype) = { -- 2.43.0