-extern void init_mem_param(mem_param_t *param, uint32_t address, uint32_t size, enum param_direction direction);
-extern void destroy_mem_param(mem_param_t *param);
-extern void init_reg_param(reg_param_t *param, char *reg_name, uint32_t size, enum param_direction direction);
-extern void destroy_reg_param(reg_param_t *param);
+void init_reg_param(struct reg_param *param,
+ char *reg_name, uint32_t size, enum param_direction dir);
+void destroy_reg_param(struct reg_param *param);