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authorOleksij Rempel <linux@rempel-privat.de>2013-06-09 18:51:24 +0200
committerJohn W. Linville <linville@tuxdriver.com>2013-06-12 15:06:53 -0400
commita226c3d96d920ba88a28f463ba77c9693988ff1e (patch)
tree4835cc5a32062584f5f00e6e43f1c8cbca090e54
parent4c895f41a750b3f81bf0890d2730ac6b867357f8 (diff)
downloadlinux-a226c3d96d920ba88a28f463ba77c9693988ff1e.tar.bz2
ath9k_htc: add STBC TX support
All known ar7010+ar* device and current FW support STBC TX. This patch make use of it and suggest to send STBC if peer support it. I use wort "suggest" since currenly we have separate rate controller in FW which will make decision based on rate and hardware. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/htc.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_init.c3
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_main.c2
3 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 0085e643132f..69581031f2cd 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -142,6 +142,7 @@ struct ath9k_htc_target_aggr {
#define WLAN_RC_40_FLAG 0x02
#define WLAN_RC_SGI_FLAG 0x04
#define WLAN_RC_HT_FLAG 0x08
+#define ATH_RC_TX_STBC_FLAG 0x20
struct ath9k_htc_rateset {
u8 rs_nrates;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 59f64367e8ca..bb0ba9e3e083 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -517,6 +517,9 @@ static void setup_ht_cap(struct ath9k_htc_priv *priv,
ath_dbg(common, CONFIG, "TX streams %d, RX streams: %d\n",
tx_streams, rx_streams);
+ if (tx_streams >= 2)
+ ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
+
if (tx_streams != rx_streams) {
ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
ht_info->mcs.tx_params |= ((tx_streams - 1) <<
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 34869c2405aa..eaa94feb4333 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -627,6 +627,8 @@ static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv,
trate->rates.ht_rates.rs_nrates = j;
caps = WLAN_RC_HT_FLAG;
+ if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC)
+ caps |= ATH_RC_TX_STBC_FLAG;
if (sta->ht_cap.mcs.rx_mask[1])
caps |= WLAN_RC_DS_FLAG;
if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&