Function ieee80211_node_setuptxparms

freebsd/net80211/ieee80211_node.c:243–276

* Fix tx parameters for a node according to ``association state''. */

 * Fix tx parameters for a node according to ``association state''.
 */
void
ieee80211_node_setuptxparms(struct ieee80211_node *ni)
{
	struct ieee80211vap *vap = ni->ni_vap;
	enum ieee80211_phymode mode;

	if (ni->ni_flags & IEEE80211_NODE_VHT) {
		if (IEEE80211_IS_CHAN_5GHZ(ni->ni_chan))
			mode = IEEE80211_MODE_VHT_5GHZ;
		else
			mode = IEEE80211_MODE_VHT_2GHZ;
	} else if (ni->ni_flags & IEEE80211_NODE_HT) {
		if (IEEE80211_IS_CHAN_5GHZ(ni->ni_chan))
			mode = IEEE80211_MODE_11NA;
		else
			mode = IEEE80211_MODE_11NG;
	} else {				/* legacy rate handling */
		if (IEEE80211_IS_CHAN_ST(ni->ni_chan))
			mode = IEEE80211_MODE_STURBO_A;
		else if (IEEE80211_IS_CHAN_HALF(ni->ni_chan))
			mode = IEEE80211_MODE_HALF;
		else if (IEEE80211_IS_CHAN_QUARTER(ni->ni_chan))
			mode = IEEE80211_MODE_QUARTER;
		/* NB: 108A should be handled as 11a */
		else if (IEEE80211_IS_CHAN_A(ni->ni_chan))
			mode = IEEE80211_MODE_11A;
		else if (IEEE80211_IS_CHAN_108G(ni->ni_chan) ||
		    (ni->ni_flags & IEEE80211_NODE_ERP))
			mode = IEEE80211_MODE_11G;
		else
			mode = IEEE80211_MODE_11B;
	}
	ni->ni_txparms = &vap->iv_txparms[mode];
}

/*
 * Set/change the channel.  The rate set is also updated as