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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: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Oleksij Rempel 2013-06-09 18:51:24 +02:00 committed by John W. Linville
parent 4c895f41a7
commit a226c3d96d
3 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/ath/ath9k/htc.h
View File

@ -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;

3
drivers/net/wireless/ath/ath9k/htc_drv_init.c
View File

@ -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) <<

2
drivers/net/wireless/ath/ath9k/htc_drv_main.c
View File

@ -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) &&