start refactoring lb router in openfpga namespace

openfpga/src/repack/lb_router.h

@@ -0,0 +1,40 @@
+/********************************************************************
+ * Intra-logic block router determines if a candidate packing solution (or intermediate solution) can route.
+ * Adapted from original VPR cluster router to the use of LbRRGraph object 
+ *******************************************************************/
+#ifndef LB_ROUTER_H
+#define LB_ROUTER_H
+
+/********************************************************************
+ * Include header files that are required by function declaration
+ *******************************************************************/
+#include <vector>
+#include "atom_netlist_fwd.h"
+#include "pack_types.h"
+
+/********************************************************************
+ * Function declaration
+ *******************************************************************/
+
+/* begin namespace openfpga */
+namespace openfpga {
+
+/* Constructors/Destructors */
+t_lb_router_data* alloc_and_load_router_data(std::vector<t_lb_type_rr_node>* lb_type_graph, t_logical_block_type_ptr type);
+void free_router_data(t_lb_router_data* router_data);
+void free_intra_lb_nets(std::vector<t_intra_lb_net>* intra_lb_nets);
+
+/* Routing Functions */
+void add_atom_as_target(t_lb_router_data* router_data, const AtomBlockId blk_id);
+void remove_atom_from_target(t_lb_router_data* router_data, const AtomBlockId blk_id);
+void set_reset_pb_modes(t_lb_router_data* router_data, const t_pb* pb, const bool set);
+bool try_intra_lb_route(t_lb_router_data* router_data, int verbosity, t_mode_selection_status* mode_status);
+void reset_intra_lb_route(t_lb_router_data* router_data);
+
+/* Accessor Functions */
+t_pb_routes alloc_and_load_pb_route(const std::vector<t_intra_lb_net>* intra_lb_nets, t_pb_graph_node* pb_graph_head);
+void free_pb_route(t_pb_route* free_pb_route);
+
+} /* end namespace openfpga */
+
+#endif