bts: Move the frame_number into the BTS sructure
The current_frame is an attribute of the BTS. Move it from the
pcu_l1_if.cpp into the BTS. As the next step we can trigger
actions depending on the change of the frame.
diff --git a/src/gsm_timer.cpp b/src/gsm_timer.cpp
index 95513b4..d3c59cb 100644
--- a/src/gsm_timer.cpp
+++ b/src/gsm_timer.cpp
@@ -33,9 +33,21 @@
#include <limits.h>
#include <gsm_timer.h>
#include <pcu_l1_if.h>
+#include <bts.h>
+
static struct rb_root timer_root = RB_ROOT;
+/*
+ * TODO: make this depend on the BTS. This means that
+ * all time functions schedule based on the BTS they
+ * are scheduled on.
+ */
+static int get_current_fn()
+{
+ return BTS::main_bts()->current_frame_number();
+}
+
static void __add_gsm_timer(struct osmo_gsm_timer_list *timer)
{
struct rb_node **new_node = &(timer_root.rb_node);