Migrate the power-save functions to be overridable VAP methods.

This turns ieee80211_node_pwrsave(), ieee80211_sta_pwrsave() and
ieee80211_recv_pspoll() into methods.

The intent is to let drivers override these and tie into the power save
management pathway.

For ath(4), this is the beginning of forcing a node software queue to
stop and start as needed, as well as supporting "leaking" single frames
from the software queue to the hardware.

Right now, ieee80211_recv_pspoll() will attempt to transmit a single frame
to the hardware (whether it be a data frame on the power-save queue or
a NULL data frame) but the driver may have hardware/software queued frames
queued up.  This initial work is an attempt at providing the hooks required
to implement correct behaviour.

Allowing ieee80211_node_pwrsave() to be overridden allows the ath(4)
driver to pause and unpause the entire software queue for a given node.
It doesn't make sense to transmit anything whilst the node is asleep.

Please note that there are other corner cases to correctly handle -
specifically, setting the MORE data bit correctly on frames to a station,
as well as keeping the TIM updated.  Those particular issues can be
addressed later.

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/net80211/ieee80211_adhoc.c b/sys/net80211/ieee80211_adhoc.c
index 8d9bcce..e3d9272 100644
--- a/sys/net80211/ieee80211_adhoc.c
+++ b/sys/net80211/ieee80211_adhoc.c
@@ -242,7 +242,7 @@ adhoc_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
 			ic->ic_newassoc(ni, ostate != IEEE80211_S_RUN);
 		break;
 	case IEEE80211_S_SLEEP:
-		ieee80211_sta_pwrsave(vap, 0);
+		vap->iv_sta_ps(vap, 0);
 		break;
 	default:
 	invalid: