RTL818X_CMD_RX_ENABLE
reg |= RTL818X_CMD_RX_ENABLE;
reg &= ~RTL818X_CMD_RX_ENABLE;
reg |= RTL818X_CMD_RX_ENABLE;
reg &= ~RTL818X_CMD_RX_ENABLE;
reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE;