diff options
| author | Rajkumar Manoharan <rmanoharan@atheros.com> | 2011-05-20 17:52:14 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-23 15:28:39 -0700 |
| commit | 1a32d86b9e73db139ecda70c98c28d840fd04211 (patch) | |
| tree | 0389c5432cf0c895eef2c72575a33042acd3ea3d /drivers | |
| parent | c2c9073744f36963c052aa02a453ba347600d95f (diff) | |
ath9k: set 40 Mhz rate only if hw is configured in ht40
commit 41e2b05b9598d6bdf91fc20280bfc538d853f769 upstream.
Whenever there is a channel width change from 40 Mhz to 20 Mhz,
the hardware is reconfigured to ht20. Meantime before doing
the rate control updation, the packets are being transmitted are
selected rate with IEEE80211_TX_RC_40_MHZ_WIDTH.
While transmitting ht40 rate packets in ht20 mode is causing
baseband panic with AR9003 based chips.
==== BB update: BB status=0x02001109 ====
ath: ** BB state: wd=1 det=1 rdar=0 rOFDM=1 rCCK=1 tOFDM=0 tCCK=0 agc=2
src=0 **
ath: ** BB WD cntl: cntl1=0xffff0085 cntl2=0x00000004 **
ath: ** BB mode: BB_gen_controls=0x000033c0 **
ath: ** BB busy times: rx_clear=99%, rx_frame=0%, tx_frame=0% **
ath: ==== BB update: done ====
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/rc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 171ce2bfc24f..16cb5290aa89 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -614,7 +614,8 @@ static void ath_rc_rate_set_series(const struct ath_rate_table *rate_table, if (WLAN_RC_PHY_HT(rate_table->info[rix].phy)) { rate->flags |= IEEE80211_TX_RC_MCS; - if (WLAN_RC_PHY_40(rate_table->info[rix].phy)) + if (WLAN_RC_PHY_40(rate_table->info[rix].phy) && + conf_is_ht40(&txrc->hw->conf)) rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; if (WLAN_RC_PHY_SGI(rate_table->info[rix].phy)) rate->flags |= IEEE80211_TX_RC_SHORT_GI; |