wlc_lcnphy_get_current_tx_pwr_idx
s8 wlc_lcnphy_get_current_tx_pwr_idx(struct brcms_phy *pi);
pi_lcn->lcnphy_tssi_idx = wlc_lcnphy_get_current_tx_pwr_idx(pi);
SAVE_txpwrindex = wlc_lcnphy_get_current_tx_pwr_idx(pi);