1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright 2010-2011 Calxeda, Inc.
12 struct menu *menu_create(char *title, int timeout, int prompt,
13 void (*display_statusline)(struct menu *),
14 void (*item_data_print)(void *),
15 char *(*item_choice)(void *),
16 bool (*need_reprint)(void *),
17 void *item_choice_data);
18 int menu_default_set(struct menu *m, char *item_key);
19 int menu_get_choice(struct menu *m, void **choice);
20 int menu_item_add(struct menu *m, char *item_key, void *item_data);
21 int menu_destroy(struct menu *m);
22 int menu_default_choice(struct menu *m, void **choice);
25 * menu_show() Show a boot menu
27 * This shows a menu and lets the user select an option. The menu is defined by
28 * environment variables (see README.bootmenu).
30 * This function doesn't normally return, but if the users requests the command
33 * @bootdelay: Delay to wait before running the default menu option (0 to run
34 * the entry immediately)
35 * Return: If it returns, it always returns -1 to indicate that the boot should
36 * be aborted and the command prompt should be provided
38 int menu_show(int bootdelay);
40 struct bootmenu_data {
41 int delay; /* delay for autoboot */
42 int active; /* active menu entry */
43 int last_active; /* last active menu entry */
44 int count; /* total count of menu entries */
45 struct bootmenu_entry *first; /* first menu entry */
48 /** enum bootmenu_key - keys that can be returned by the bootmenu */
57 /* 'extra' keys, which are used by menus but not cedit */
64 /* Keys from here on are not used by cedit */
65 BKEY_FIRST_EXTRA = BKEY_PLUS,
69 * bootmenu_autoboot_loop() - handle autobooting if no key is pressed
71 * This shows a prompt to allow the user to press a key to interrupt auto boot
72 * of the first menu option.
74 * It then waits for the required time (menu->delay in seconds) for a key to be
75 * pressed. If nothing is pressed in that time, @key returns KEY_SELECT
76 * indicating that the current option should be chosen.
78 * @menu: Menu being processed
79 * @esc: Set to 1 if the escape key is pressed, otherwise not updated
80 * Returns: code for the key the user pressed:
83 * anything else: KEY_NONE
85 enum bootmenu_key bootmenu_autoboot_loop(struct bootmenu_data *menu,
86 struct cli_ch_state *cch);
89 * bootmenu_loop() - handle waiting for a keypress when autoboot is disabled
91 * This is used when the menu delay is negative, indicating that the delay has
92 * elapsed, or there was no delay to begin with.
94 * It reads a character and processes it, returning a menu-key code if a
95 * character is recognised
97 * @menu: Menu being processed
98 * @esc: On input, a non-zero value indicates that an escape sequence has
99 * resulted in that many characters so far. On exit this is updated to the
100 * new number of characters
101 * Returns: code for the key the user pressed:
105 * Down arrow: BKEY_DOWN
106 * Escape (by itself): BKEY_QUIT
111 enum bootmenu_key bootmenu_loop(struct bootmenu_data *menu,
112 struct cli_ch_state *cch);
115 * bootmenu_conv_key() - Convert a U-Boot keypress into a menu key
117 * @ichar: Keypress to convert (ASCII, including control characters)
118 * Returns: Menu key that corresponds to @ichar, or BKEY_NONE if none
120 enum bootmenu_key bootmenu_conv_key(int ichar);
122 #endif /* __MENU_H__ */