xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/net/wireless/ath/ath9k/recv.c
View File

@@ -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);