Add Menu Framework

Introduce a menu framework that allow us to create list menu to simplify
barebox and make it more user-frendly

This kind of menu is very usefull when you do not have a keyboard or a
serial console attached to your board to allow you to interract with
barebox

For the develloper part,
The framework introduce two API

1) C
that allow you to create menu, submenu, entry and complex menu action

2) Command
that allow you as the C API to create menu, submenu, entry and complex
menu action but this time the actions will be store in a function and
then be evaluated and excecuted at runtime.

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

1 files changed, 87 insertions, 0 deletions

diff --git a/include/menu.h b/include/menu.h
new file mode 100644
index 0000000000..29f18f206a
--- /dev/null
+++ b/include/menu.h
@@ -0,0 +1,87 @@
+/*
+ * (C) Copyright 2009-2010 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __MENU_H__
+#define __MENU_H__
+
+#include <linux/list.h>
+#include <malloc.h>
+
+struct menu;
+
+struct menu_entry {
+	int num;
+	char *display;
+	void (*action)(struct menu *m, struct menu_entry *me);
+	int non_re_ent;
+
+	struct list_head list;
+	void *priv;
+};
+
+struct menu {
+	char *name;
+	char *display;
+
+	struct list_head list;
+	struct menu_entry entries;
+	int nb_entries;
+	int width;
+	struct menu_entry *selected;
+	void *priv;
+};
+
+/*
+ * menu functions
+ */
+static inline struct menu* menu_alloc(void)
+{
+	return calloc(1, sizeof(struct menu));
+}
+void menu_free(struct menu *m);
+int menu_add(struct menu* m);
+void menu_remove(struct menu *m);
+struct menu* menu_get_by_name(char *name);
+int menu_show(struct menu *m);
+int menu_set_selected_entry(struct menu *m, struct menu_entry* me);
+int menu_set_selected(struct menu *m, int num);
+struct menu* menu_get_menus(void);
+
+/*
+ * menu entry functions
+ */
+static inline struct menu_entry* menu_entry_alloc(void)
+{
+	return calloc(1, sizeof(struct menu_entry));
+}
+void menu_entry_free(struct menu_entry *me);
+int menu_add_entry(struct menu *m, struct menu_entry* me);
+void menu_remove_entry(struct menu *m, struct menu_entry *me);
+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_exit(struct menu *m, struct menu_entry *me);
+
+#endif /* __MENU_H__ */