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Commit a226c3d9 authored by Oleksij Rempel's avatar Oleksij Rempel Committed by John W. Linville
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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: default avatarOleksij Rempel <linux@rempel-privat.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4c895f41

drivers/net/wireless/ath/ath9k/htc.h

+1 −0
Original line number Diff line number Diff line
@@ -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;

drivers/net/wireless/ath/ath9k/htc_drv_init.c

+3 −0
Original line number Diff line number Diff line
@@ -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) <<

drivers/net/wireless/ath/ath9k/htc_drv_main.c

+2 −0
Original line number Diff line number Diff line
@@ -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) &&