kernel: cons: Clear entire screen on demand

- Flush the entire output buffer
- Wipe the whole screen with "bg"
- The entire console will now be cleared when a "\033[H" sequence is
  encountered

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/include/dev/cons/cons.h b/sys/include/dev/cons/cons.h
index 9868493..7599dd5 100644
--- a/sys/include/dev/cons/cons.h
+++ b/sys/include/dev/cons/cons.h
@@ -67,6 +67,7 @@ struct cons_screen {
 void cons_init(void);
 void cons_expose(void);
 void cons_update_color(struct cons_screen *scr, uint32_t fg, uint32_t bg);
+void cons_clear_scr(struct cons_screen *scr, uint32_t bg);
 void cons_reset_color(struct cons_screen *scr);
 void cons_reset_cursor(struct cons_screen *scr);
 int cons_putch(struct cons_screen *scr, char c);