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ath9k: Wake up for TX in mac80211 timeout=0 sleep mode

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When using timeout=0 (PS-Poll) with mac80211, the driver will need to
wake up for TX requests and remain awake until the TX has been
completed (ACK received or timeout) or until the buffer frame(s) have
been received (in case the TX is for a PS-Poll frame).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen
2009-05-19 17:01:38 +03:00
committed by John W. Linville
parent cce4c77b87
commit 9a23f9ca50
4 changed files with 58 additions and 4 deletions
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10
drivers/net/wireless/ath/ath9k/xmit.c
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@ -1790,6 +1790,16 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
skb_pull(skb, padsize);
}
if (sc->sc_flags & SC_OP_WAIT_FOR_TX_ACK) {
sc->sc_flags &= ~SC_OP_WAIT_FOR_TX_ACK;
DPRINTF(sc, ATH_DBG_PS, "Going back to sleep after having "
"received TX status (0x%x)\n",
sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
SC_OP_WAIT_FOR_CAB |
SC_OP_WAIT_FOR_PSPOLL_DATA |
SC_OP_WAIT_FOR_TX_ACK));
}
if (frame_type == ATH9K_NOT_INTERNAL)
ieee80211_tx_status(hw, skb);
else