diff options
| author | Jouni Malinen <jouni.malinen@atheros.com> | 2009-05-19 17:01:38 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-05-20 14:46:32 -0400 |
| commit | 9a23f9ca50943c1b4535d22b3acda3c31b4ad072 (patch) | |
| tree | c8e4e3398279f6ac461e5ebfdb2d22d974e5f6c3 /drivers/net/wireless/ath/ath9k/recv.c | |
| parent | cce4c77b87ce7e71a0f244a3dfb6ac1c3a1bc67e (diff) | |
| download | talos-op-linux-9a23f9ca50943c1b4535d22b3acda3c31b4ad072.tar.gz talos-op-linux-9a23f9ca50943c1b4535d22b3acda3c31b4ad072.zip | |
ath9k: Wake up for TX in mac80211 timeout=0 sleep mode
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>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/recv.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/recv.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 5567517aa641..5e046b58ad93 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -560,7 +560,8 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb) hdr = (struct ieee80211_hdr *)skb->data; /* Process Beacon and CAB receive in PS state */ - if (ieee80211_is_beacon(hdr->frame_control)) + if ((sc->sc_flags & SC_OP_WAIT_FOR_BEACON) && + ieee80211_is_beacon(hdr->frame_control)) ath_rx_ps_beacon(sc, skb); else if ((sc->sc_flags & SC_OP_WAIT_FOR_CAB) && (ieee80211_is_data(hdr->frame_control) || @@ -574,6 +575,16 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb) * point. */ ath_rx_ps_back_to_sleep(sc); + } else if ((sc->sc_flags & SC_OP_WAIT_FOR_PSPOLL_DATA) && + !is_multicast_ether_addr(hdr->addr1) && + !ieee80211_has_morefrags(hdr->frame_control)) { + sc->sc_flags &= ~SC_OP_WAIT_FOR_PSPOLL_DATA; + DPRINTF(sc, ATH_DBG_PS, "Going back to sleep after having " + "received PS-Poll data (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)); } } @@ -798,7 +809,8 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) sc->rx.rxotherant = 0; } - if (unlikely(sc->sc_flags & SC_OP_WAIT_FOR_BEACON)) + if (unlikely(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | + SC_OP_WAIT_FOR_PSPOLL_DATA))) ath_rx_ps(sc, skb); ath_rx_send_to_mac80211(sc, skb, &rx_status); |
