WLAN_SPEC_SIFS
rtw_write16(rtwdev, REG_SPEC_SIFS, WLAN_SPEC_SIFS);
rtw_write16(rtwdev, REG_MAC_SPEC_SIFS, WLAN_SPEC_SIFS);
rtw_write16(rtwdev, REG_SIFS, WLAN_SPEC_SIFS); /* CCK */
rtw_write16(rtwdev, REG_SIFS + 2, WLAN_SPEC_SIFS); /* OFDM */
rtw_write16(rtwdev, REG_MAC_SPEC_SIFS, WLAN_SPEC_SIFS);
rtw_write16(rtwdev, REG_SIFS, WLAN_SPEC_SIFS);
rtw_write16(rtwdev, REG_SIFS + 2, WLAN_SPEC_SIFS);