menu: Factor out menu-keypress decoding
Move this code into a separate function so that it can be used in the new
VBE menu.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/menu.c b/common/menu.c
index 45f36ae..cdcdbb2 100644
--- a/common/menu.c
+++ b/common/menu.c
@@ -483,26 +483,11 @@
return key;
}
-enum bootmenu_key bootmenu_loop(struct bootmenu_data *menu,
- struct cli_ch_state *cch)
+enum bootmenu_key bootmenu_conv_key(int ichar)
{
- enum bootmenu_key key = BKEY_NONE;
- int c;
+ enum bootmenu_key key;
- c = cli_ch_process(cch, 0);
- if (!c) {
- while (!c && !tstc()) {
- schedule();
- mdelay(10);
- c = cli_ch_process(cch, -ETIMEDOUT);
- }
- if (!c) {
- c = getchar();
- c = cli_ch_process(cch, c);
- }
- }
-
- switch (c) {
+ switch (ichar) {
case '\n':
/* enter key was pressed */
key = BKEY_SELECT;
@@ -527,7 +512,34 @@
case ' ':
key = BKEY_SPACE;
break;
+ default:
+ key = BKEY_NONE;
+ break;
}
return key;
}
+
+enum bootmenu_key bootmenu_loop(struct bootmenu_data *menu,
+ struct cli_ch_state *cch)
+{
+ enum bootmenu_key key;
+ int c;
+
+ c = cli_ch_process(cch, 0);
+ if (!c) {
+ while (!c && !tstc()) {
+ schedule();
+ mdelay(10);
+ c = cli_ch_process(cch, -ETIMEDOUT);
+ }
+ if (!c) {
+ c = getchar();
+ c = cli_ch_process(cch, c);
+ }
+ }
+
+ key = bootmenu_conv_key(c);
+
+ return key;
+}
diff --git a/include/menu.h b/include/menu.h
index 3996075..1e88141 100644
--- a/include/menu.h
+++ b/include/menu.h
@@ -53,6 +53,8 @@
BKEY_PLUS,
BKEY_MINUS,
BKEY_SPACE,
+
+ BKEY_COUNT,
};
/**
@@ -101,4 +103,12 @@
enum bootmenu_key bootmenu_loop(struct bootmenu_data *menu,
struct cli_ch_state *cch);
+/**
+ * bootmenu_conv_key() - Convert a U-Boot keypress into a menu key
+ *
+ * @ichar: Keypress to convert (ASCII, including control characters)
+ * Returns: Menu key that corresponds to @ichar, or BKEY_NONE if none
+ */
+enum bootmenu_key bootmenu_conv_key(int ichar);
+
#endif /* __MENU_H__ */