diff --git a/lib/include/utils.h b/lib/include/utils.h
index 3f5f10838..5c985feab 100644
--- a/lib/include/utils.h
+++ b/lib/include/utils.h
@@ -14,4 +14,10 @@
 #define clear_bit(val, bit)  (val = (val & ~(1 << bit)))
 #define set_bit(val, bit)  (val = (val | (1 << bit)))
 
+#define ones(num) ( (1<<num) - 1 )
+#define bit_mask(length, shift) (ones(length) << shift)
+#define get_field(val, field) ((val & field##_MASK) >> field)
+//#define bitfield(name, length, shift) ( #define #name length  #define #name##_MASK bit_mask(length, shift))
+#define bitfield(name, length, shift) ( define #name length )
+
 #endif /* UTILS_H */