+#define PP_DATA 0
+#define PP_STATUS 1
+#define PP_CONTROL 2
+#define PP_ECP_CFGA 0
+#define PP_ECP_CFGB 1
+#define PP_ECP_ECR 2
+#define PP_READ 10
+#define PP_WRITE 13
+
+#define PP_TDI 0x01
+#define PP_TDO 0x10
+#define PP_PROG 0x10
+#define PP_TCK 0x02
+#define PP_TMS 0x04
+#define PP_CTRL 0x08
+
+#ifdef DEBUG
+#define DPRINTF(format, args...) fprintf(stderr, format, ##args)
+#else
+#define DPRINTF(format, args...)
+#endif
+
+void hexdump(unsigned char *buf, int len);
+
+#define WDU_GET_MAX_PACKET_SIZE(x) ((unsigned short) (((x) & 0x7ff) * (1 + (((x) & 0x1800) >> 11))))
+