From a226c3d96d920ba88a28f463ba77c9693988ff1e Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Sun, 9 Jun 2013 18:51:24 +0200 Subject: [PATCH] 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 Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/htc.h | 1 + drivers/net/wireless/ath/ath9k/htc_drv_init.c | 3 +++ drivers/net/wireless/ath/ath9k/htc_drv_main.c | 2 ++ 3 files changed, 6 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 0085e64..6958103 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 59f6436..bb0ba9e 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 34869c2..eaa94fe 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) && -- 2.7.4