-// Options for the HF reader, tx to tag
-#define FPGA_HF_READER_TX_SHALLOW_MOD (1<<0)
+// Options for the HF reader
+#define FPGA_HF_READER_MODE_RECEIVE_IQ (0<<0)
+#define FPGA_HF_READER_MODE_RECEIVE_AMPLITUDE (1<<0)
+#define FPGA_HF_READER_MODE_RECEIVE_PHASE (2<<0)
+#define FPGA_HF_READER_MODE_SEND_FULL_MOD (3<<0)
+#define FPGA_HF_READER_MODE_SEND_SHALLOW_MOD (4<<0)
+#define FPGA_HF_READER_MODE_SNOOP_IQ (5<<0)
+#define FPGA_HF_READER_MODE_SNOOP_AMPLITUDE (6<<0)
+#define FPGA_HF_READER_MODE_SNOOP_PHASE (7<<0)