expo: Update bootflow_menu_poll() to return a sequence ID
Rather than returning a bootflow, return the index of the bootflow. This
will allow callers to do their own translation to bootflows or some
other data structure.
Also return a special code when the user tries to move the pointer, so
that the caller can cancel the boot-menu timeout, if this is in use.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/bootflow.h b/include/bootflow.h
index 615fb97..75d88d4 100644
--- a/include/bootflow.h
+++ b/include/bootflow.h
@@ -670,10 +670,10 @@
* bootflow_menu_poll() - Poll a menu for user action
*
* @exp: Expo to poll
- * @bflowp: Returns chosen bootflow (set to NULL if nothing is chosen)
- * Return 0 if a bootflow was chosen, -EAGAIN if nothing is chosen yet, -EPIPE
- * if the user quit
+ * @seqp: Returns the bootflow chosen or currently pointed to (numbered from 0)
+ * Return: 0 if a bootflow was chosen, -EAGAIN if nothing is chosen yet, -EPIPE
+ * if the user quit, -ERESTART if the expo needs refreshing
*/
-int bootflow_menu_poll(struct expo *exp, struct bootflow **bflowp);
+int bootflow_menu_poll(struct expo *exp, int *seqp);
#endif