[PATCH 2/4] readkey: add define for Ascii keys

[Jean-Christophe PLAGNIOL-VILLARD]

this will simplify the usage of gpio keyboard

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
 common/menu.c     |    6 +++---
 include/readkey.h |    4 ++++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/common/menu.c b/common/menu.c
index 5291fcb..fd21e52 100644
--- a/common/menu.c
+++ b/common/menu.c
@@ -296,7 +296,7 @@ int menu_show(struct menu *m)
 
 	do {
 		if (m->auto_select >= 0)
-			ch = '\n';
+			ch = KEY_ENTER;
 		else
 			ch = getc();
 
@@ -339,8 +339,8 @@ int menu_show(struct menu *m)
 				m->selected->action(m, m->selected);
 			print_menu_entry(m, m->selected, 1);
 			break;
-		case '\n':
-		case '\r':
+		case KEY_ENTER:
+		case KEY_RETURN:
 			clear();
 			gotoXY(1,1);
 			m->selected->action(m, m->selected);
diff --git a/include/readkey.h b/include/readkey.h
index aabb835..f134846 100644
--- a/include/readkey.h
+++ b/include/readkey.h
@@ -3,6 +3,10 @@
 
 #define CTL_CH(c)		((c) - 'a' + 1)
 
+/* Ascii keys */
+#define KEY_ENTER		'\n'
+#define KEY_RETURN		'\r'
+
 /* Misc. non-Ascii keys */
 #define KEY_UP			CTL_CH('p')	/* cursor key Up	*/
 #define KEY_DOWN		CTL_CH('n')	/* cursor key Down	*/
-- 
1.7.7