diff options
Diffstat (limited to 'libcons/cons.h')
| -rw-r--r-- | libcons/cons.h | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/libcons/cons.h b/libcons/cons.h index 783aeb6a..67f4e45b 100644 --- a/libcons/cons.h +++ b/libcons/cons.h @@ -189,7 +189,7 @@ void cons_vcons_scroll (vcons_t vcons, int delta); void cons_vcons_update (vcons_t vcons); /* The user must define this function. Make the virtual console - VCONS, which is locked, beep audible. */ + VCONS, which is locked, beep audibly. */ void cons_vcons_beep (vcons_t vcons); /* The user must define this function. Make the virtual console @@ -218,8 +218,27 @@ void cons_vcons_remove (cons_t cons, vcons_list_t vcons_entry); be locked. */ error_t cons_switch (vcons_t vcons, int id, int delta, vcons_t *r_vcons); -/* Scroll back into the history of VCONS by DELTA lines. */ -int cons_vcons_scrollback (vcons_t vcons, int delta); +/* Enter SIZE bytes from the buffer BUF into the virtual console + VCONS. */ +error_t cons_vcons_input (vcons_t vcons, char *buf, size_t size); + +typedef enum + { + CONS_SCROLL_DELTA_LINES, CONS_SCROLL_DELTA_SCREENS, + CONS_SCROLL_ABSOLUTE_LINE, CONS_SCROLL_ABSOLUTE_PERCENTAGE + } cons_scroll_t; + +/* Scroll back into the history of VCONS. If TYPE is + CONS_SCROLL_DELTA_LINES, scroll up or down by VALUE lines. If TYPE + is CONS_SCROLL_DELTA_SCREENS, scroll up or down by VALUE multiples + of a screen height. If TYPE is CONS_SCROLL_ABSOLUTE_LINE, scroll to + line VALUE (where 0 is the lowest line). If TYPE is + CONS_SCROLL_ABSOLUTE_PERCENTAGE, scroll to the position determined + by VALUE, where 0 is the bottom and 1 is the top. + + The function returns the number of lines actually scrolled up or + down. */ +int cons_vcons_scrollback (vcons_t vcons, cons_scroll_t type, float value); extern const struct argp cons_startup_argp; |