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ath5k: honor the RTS/CTS bits

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The ath5k driver didn't use set_rts_threshold or use_cts_prot, and also
didn't check the IEEE80211_TX_RC_USE_{RTS_CTS,CTS_PROTECT} RC flags.
Tell the hardware about these so RTS/CTS will work, and so the device
will work better in mixed b/g environments.

Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bob Copeland 2009-01-22 08:44:21 -05:00 committed by John W. Linville
parent 8902ff4e56
commit 07c1e85251
1 changed files with 17 additions and 1 deletions
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18
drivers/net/wireless/ath5k/base.c
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@ -1180,6 +1180,8 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
unsigned int mrr_rate[3], mrr_tries[3];
int i, ret;
u16 hw_rate;
u16 cts_rate = 0;
u16 duration = 0;
u8 rc_flags;
flags = AR5K_TXDESC_INTREQ | AR5K_TXDESC_CLRDMASK;
@ -1199,6 +1201,19 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
pktlen = skb->len;
if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
flags |= AR5K_TXDESC_RTSENA;
cts_rate = ieee80211_get_rts_cts_rate(sc->hw, info)->hw_value;
duration = le16_to_cpu(ieee80211_rts_duration(sc->hw,
sc->vif, pktlen, info));
}
if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
flags |= AR5K_TXDESC_CTSENA;
cts_rate = ieee80211_get_rts_cts_rate(sc->hw, info)->hw_value;
duration = le16_to_cpu(ieee80211_ctstoself_duration(sc->hw,
sc->vif, pktlen, info));
}
if (info->control.hw_key) {
keyidx = info->control.hw_key->hw_key_idx;
pktlen += info->control.hw_key->icv_len;
@ -1207,7 +1222,8 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL,
(sc->power_level * 2),
hw_rate,
info->control.rates[0].count, keyidx, 0, flags, 0, 0);
info->control.rates[0].count, keyidx, 0, flags,
cts_rate, duration);
if (ret)
goto err_unmap;