邱名碩 <ccchi...@gmail.com> 於 2021年3月2日 週二 下午6:21寫道： > > Hi guys, > I'm planning to implement the get_txpower hook function of the > struct ieee80211_ops and handle the IEEE80211_CONF_CHANGE_POWER for > rtl8xxxu driver. So that users can get the information of the current > tx power limit and set a new limit value with iw commands. > > I found there's phy_txpwr_idx_to_dbm() of each driver in > realtek/rtlwifi to translate the tx power index parsed from efuse to > tx power level in dBm. Does the power level translated represent the > current tx power limit in dBm? In my RTL8188CUS module, the power > index of CCK/OFDM from efuse for each channel is basically 36/38, thus > the translated txpower level is 11dBm. Is this the expected value for > the default txpower limit value? Or do I need some other formula to > compute? > > And for the handler of IEEE80211_CONF_CHANGE_POWER, can I > translate the hw->conf.power_level with the phy_dbm_to_txpwr_idx > functions I found in some rtlwifi family drivers, then directly set > the txpower index with phy_set_txpower_index functions which write > power index to bbreg for different rates (CCK and OFDM)? Are there > some invalid values I should take care of because the TCP RX > performance seems to be extremely low when I write the power index > value translated from 20dBm to bbreg. Any suggestions for what I > should handle before writing the bbreg? > > Chris
Sorry for confusion. I'm removing and correcting the invalid mail address here.
