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common, menu: use abortboot for menu timeout

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Signed-off-by: Jason Hobbs <jason.hobbs@calxeda.com>
This commit is contained in:
Jason Hobbs
2011-08-23 11:06:50 +00:00
committed by Wolfgang Denk
parent b69bf52dfe
commit b41bc5a82d
5 changed files with 47 additions and 14 deletions
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40
common/menu.c
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@@ -43,6 +43,7 @@ struct menu_item {
*/
struct menu {
struct menu_item *default_item;
int timeout;
char *title;
int prompt;
void (*item_data_print)(void *);
@@ -157,14 +158,30 @@ static inline struct menu_item *menu_item_by_key(struct menu *m,
return menu_items_iter(m, menu_item_key_match, item_key);
}
/*
* Wait for the user to hit a key according to the timeout set for the menu.
* Returns 1 if the user hit a key, or 0 if the timeout expired.
*/
static inline int menu_interrupted(struct menu *m)
{
if (!m->timeout)
return 0;
if (abortboot(m->timeout/10))
return 1;
return 0;
}
/*
* Checks whether or not the default menu item should be used without
* prompting for a user choice. If the menu is set to always prompt, return
* 0. Otherwise, return 1 to indicate we should use the default menu item.
* prompting for a user choice. If the menu is set to always prompt, or the
* user hits a key during the timeout period, return 0. Otherwise, return 1 to
* indicate we should use the default menu item.
*/
static inline int menu_use_default(struct menu *m)
{
return !m->prompt;
return !m->prompt && !menu_interrupted(m);
}
/*
@@ -250,7 +267,8 @@ int menu_default_set(struct menu *m, char *item_key)
/*
* menu_get_choice() - Returns the user's selected menu entry, or the default
* if the menu is set to not prompt. This is safe to call more than once.
* if the menu is set to not prompt or the timeout expires. This is safe to
* call more than once.
*
* m - Points to a menu created by menu_create().
*
@@ -259,8 +277,8 @@ int menu_default_set(struct menu *m, char *item_key)
* written at the location it points to.
*
* Returns 1 if successful, -EINVAL if m or choice is NULL, -ENOENT if no
* default has been set and the menu is set to not prompt, or -EINTR if the
* user exits the menu via ^c.
* default has been set and the menu is set to not prompt or the timeout
* expires, or -EINTR if the user exits the menu via ^c.
*/
int menu_get_choice(struct menu *m, void **choice)
{
@@ -330,7 +348,12 @@ int menu_item_add(struct menu *m, char *item_key, void *item_data)
* list of menu items. It will be copied to internal storage, and is safe to
* discard after passing to menu_create().
*
* prompt - If 0, don't ask for user input.
* timeout - A delay in seconds to wait for user input. If 0, timeout is
* disabled, and the default choice will be returned unless prompt is 1.
*
* prompt - If 0, don't ask for user input unless there is an interrupted
* timeout. If 1, the user will be prompted for input regardless of the value
* of timeout.
*
* item_data_print - If not NULL, will be called for each item when the menu
* is displayed, with the pointer to the item's data passed as the argument.
@@ -341,7 +364,7 @@ int menu_item_add(struct menu *m, char *item_key, void *item_data)
* Returns a pointer to the menu if successful, or NULL if there is
* insufficient memory available to create the menu.
*/
struct menu *menu_create(char *title, int prompt,
struct menu *menu_create(char *title, int timeout, int prompt,
void (*item_data_print)(void *))
{
struct menu *m;
@@ -353,6 +376,7 @@ struct menu *menu_create(char *title, int prompt,
m->default_item = NULL;
m->prompt = prompt;
m->timeout = timeout;
m->item_data_print = item_data_print;
if (title) {