WI_COMMAND
if ((CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY) == 0)
CSR_WRITE_2(sc, WI_COMMAND, cmd);
if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);