diff options
| author | Andrea Merello <andrea.merello@gmail.com> | 2014-05-07 17:54:46 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-05-07 16:08:09 -0400 |
| commit | d294d0286af8afbb714e046a7cb9caa4c44fe133 (patch) | |
| tree | 9907d06ce87bc0fd104b529d1026ec8cebcd5408 | |
| parent | 5d0d1e9489a3cf40c8712d8c1fdfd73afc7acc2b (diff) | |
rtl8187: make CTS-to-self protection work
CTS protection was not working properly because the HW needs
RTS flag to be asserted, and it need also 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>
| -rw-r--r-- | drivers/net/wireless/rtl818x/rtl8187/dev.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8187/dev.c b/drivers/net/wireless/rtl818x/rtl8187/dev.c index 6e4b1776bf0e..629ad8cfa17b 100644 --- a/drivers/net/wireless/rtl818x/rtl8187/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8187/dev.c @@ -253,14 +253,21 @@ static void rtl8187_tx(struct ieee80211_hw *dev, flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24; if (ieee80211_has_morefrags(tx_hdr->frame_control)) flags |= RTL818X_TX_DESC_FLAG_MOREFRAG; + + /* 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 (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { flags |= RTL818X_TX_DESC_FLAG_RTS; flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; rts_dur = ieee80211_rts_duration(dev, priv->vif, skb->len, info); } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { - flags |= RTL818X_TX_DESC_FLAG_CTS; + flags |= RTL818X_TX_DESC_FLAG_RTS | RTL818X_TX_DESC_FLAG_CTS; flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; + rts_dur = ieee80211_ctstoself_duration(dev, priv->vif, + skb->len, info); } if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { |