diff options
| author | Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de> | 2013-08-14 08:01:38 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-08-16 20:17:50 +0200 |
| commit | d074e8d547853cc8b40cf93a460e8fbf9eaa3d00 (patch) | |
| tree | 9b7285946795fb7ed20336770453ec7b16822db9 /drivers/net/wireless/ath/ath9k/main.c | |
| parent | ath5k: enable support for 5 MHz and 10 MHz channels (diff) | |
| download | linux-d074e8d547853cc8b40cf93a460e8fbf9eaa3d00.tar.xz linux-d074e8d547853cc8b40cf93a460e8fbf9eaa3d00.zip | |
ath9k: enable CSA functionality in ath9k
CSA is only enabled for one interface, but the same limitation applies
for mac80211 too. It checks whether the beacon has been sent (different
approaches for non-EDMA-enabled and EDMA-enabled devices), and completes
the channel switch after that.
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index ba382a8c8b9a..ac9f18fa0729 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1032,6 +1032,9 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, if (ath9k_uses_beacons(vif->type)) ath9k_beacon_remove_slot(sc, vif); + if (sc->csa_vif == vif) + sc->csa_vif = NULL; + ath9k_ps_wakeup(sc); ath9k_calculate_summary_state(hw, NULL); ath9k_ps_restore(sc); @@ -2318,6 +2321,19 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) clear_bit(SC_OP_SCANNING, &sc->sc_flags); } +static void ath9k_channel_switch_beacon(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_chan_def *chandef) +{ + struct ath_softc *sc = hw->priv; + + /* mac80211 does not support CSA in multi-if cases (yet) */ + if (WARN_ON(sc->csa_vif)) + return; + + sc->csa_vif = vif; +} + struct ieee80211_ops ath9k_ops = { .tx = ath9k_tx, .start = ath9k_start, @@ -2365,4 +2381,5 @@ struct ieee80211_ops ath9k_ops = { #endif .sw_scan_start = ath9k_sw_scan_start, .sw_scan_complete = ath9k_sw_scan_complete, + .channel_switch_beacon = ath9k_channel_switch_beacon, }; |