Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d294d028 authored by Andrea Merello's avatar Andrea Merello Committed by John W. Linville
Browse files

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: default avatarAndrea Merello <andrea.merello@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 5d0d1e94

drivers/net/wireless/rtl818x/rtl8187/dev.c

+8 −1
Original line number Diff line number Diff line
@@ -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) {