Added button_get_w_tmo()

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1576 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 19 insertions, 0 deletions

diff --git a/firmware/drivers/button.c b/firmware/drivers/button.c
index 878f041c78..d709b012de 100644
--- a/firmware/drivers/button.c
+++ b/firmware/drivers/button.c
@@ -149,6 +149,24 @@ int button_get(bool block)
     return BUTTON_NONE;
 }
 
+int button_get_w_tmo(int ticks)
+{
+    struct event ev;
+    unsigned int timeout = current_tick + ticks;
+
+    while (TIME_BEFORE( current_tick, timeout ))
+    {
+        if(!queue_empty(&button_queue))
+        {
+            queue_wait(&button_queue, &ev);
+            return ev.id;
+        }
+        yield();
+    }
+
+    return BUTTON_NONE;
+}
+
 int button_set_repeat(int newmask)
 {
     int oldmask = repeat_mask;
diff --git a/firmware/drivers/button.h b/firmware/drivers/button.h
index 22d648caf6..035fedd739 100644
--- a/firmware/drivers/button.h
+++ b/firmware/drivers/button.h
@@ -26,6 +26,7 @@ extern struct event_queue button_queue;
 
 void button_init (void);
 int button_get (bool block);
+int button_get_w_tmo(int ticks);
 int button_set_repeat(int newmask);
 int button_set_release(int newmask);