Menu/cmd: add sub menu entry command support

this will simplify the creation of navigation link

as this

menu -a -m boot -d "Boot Menu"
menu -a -m network -d "Network settings"
menu -e -a -m network -u boot -d "Back"
menu -e -a -m boot -u network -d "Network settings ->"
menu -e -a -m boot -c reset -R -d "Reset"
menu -e -a -m boot -c clear -d "Exit"
menu -s -m boot

in C

struct menu m_boot = {
	.name = "boot",
	.display = "Boot Menu",
};

struct menu m_network = {
	.name = "network",
	.display = "Network settings",
};

struct menu_entry e_to_network = {
	.display = "Network settings ->",
	.action = menu_action_show,
	.priv = &m_network,
};

struct menu_entry e_to_boot = {
	.display = "Back",
	.action = menu_action_show,
	.priv = &m_boot,
};

struct menu_entry e_reset = {
	.display = "Reset",
	.action = menu_action_run,
	.priv = "reset",
};

struct menu_entry e_exit = {
	.display = "Exit",
	.action = menu_action_run,
	.non_re_ent = 1,
	.priv = "clear",
};

void menu_test(void)
{
	menu_add(&m_boot);
	menu_add(&m_network);
	menu_add_entry(&m_boot, &e_to_network);
	menu_add_entry(&m_boot, &e_reset);
	menu_add_entry(&m_boot, &e_exit);
	menu_add_entry(&m_network, &e_to_boot);
	menu_show(&m_boot);
}

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/menu.h b/include/menu.h
index 29f18f206a..4405cedfac 100644
--- a/include/menu.h
+++ b/include/menu.h
@@ -82,6 +82,7 @@ struct menu_entry* menu_entry_get_by_num(struct menu* m, int num);
  * menu entry action functions
  */
 void menu_action_run(struct menu *m, struct menu_entry *me);
+void menu_action_show(struct menu *m, struct menu_entry *me);
 void menu_action_exit(struct menu *m, struct menu_entry *me);
 
 #endif /* __MENU_H__ */