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| author | Andrea Merello <andrea.merello@gmail.com> | 2014-05-07 17:53:17 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-05-07 16:08:09 -0400 |
| commit | 5d0d1e9489a3cf40c8712d8c1fdfd73afc7acc2b (patch) | |
| tree | aa032ed2a43d42dcf163985ce8d4b6ae8efd50c2 /drivers/net/wireless/rtl818x | |
| parent | e58342d9c8e2342688a804404c5636e32f1fa64e (diff) | |
| download | linux-stable-5d0d1e9489a3cf40c8712d8c1fdfd73afc7acc2b.tar.gz linux-stable-5d0d1e9489a3cf40c8712d8c1fdfd73afc7acc2b.tar.bz2 linux-stable-5d0d1e9489a3cf40c8712d8c1fdfd73afc7acc2b.zip | |
rtl8180: make CTS-to-self protection work
CTS protection was not working properly because the HW still need
RTS flag to be asserted, and it need also RTS rate field to be
set with CTS-to-self rate and RTS duration field to be filled with
CTS-to-self duration.
This patch makes the driver to do this.
Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rtl818x')
| -rw-r--r-- | drivers/net/wireless/rtl818x/rtl8180/dev.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c index 8d07df274262..2c1c02bafa10 100644 --- a/drivers/net/wireless/rtl818x/rtl8180/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c @@ -463,18 +463,23 @@ static void rtl8180_tx(struct ieee80211_hw *dev, RTL818X_TX_DESC_FLAG_NO_ENC; rc_flags = info->control.rates[0].flags; + + /* HW will perform RTS-CTS when only RTS flags is set. + * HW will perform CTS-to-self when both RTS and CTS flags are set. + * RTS rate and RTS duration will be used also for CTS-to-self. + */ if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { tx_flags |= RTL818X_TX_DESC_FLAG_RTS; tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; + rts_duration = ieee80211_rts_duration(dev, priv->vif, + skb->len, info); } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { - tx_flags |= RTL818X_TX_DESC_FLAG_CTS; + tx_flags |= RTL818X_TX_DESC_FLAG_RTS | RTL818X_TX_DESC_FLAG_CTS; tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; + rts_duration = ieee80211_ctstoself_duration(dev, priv->vif, + skb->len, info); } - if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) - rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len, - info); - if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8180) { unsigned int remainder; |