-#define TCODE_WRITE_QUADLET 0x0
-#define TCODE_WRITE_BLOCK 0x1
-#define TCODE_WRITE_RESPONSE 0x2
-#define TCODE_READ_QUADLET 0x4
-#define TCODE_READ_BLOCK 0x5
-#define TCODE_READ_QUADLET_RESPONSE 0x6
-#define TCODE_READ_BLOCK_RESPONSE 0x7
-#define TCODE_CYCLE_START 0x8
-#define TCODE_LOCK_REQUEST 0x9
-#define TCODE_ISO_DATA 0xa
-#define TCODE_LOCK_RESPONSE 0xb
-#define TCODE_PHY_PACKET 0x10
-
-#define ACK_NO_ACK 0x0
-#define ACK_COMPLETE 0x1
-#define ACK_PENDING 0x2
-#define ACK_BUSY_X 0x4
-#define ACK_BUSY_A 0x5
-#define ACK_BUSY_B 0x6
-#define ACK_DATA_ERROR 0xd
-#define ACK_TYPE_ERROR 0xe
-