diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2010-04-19 19:57:36 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-04-20 11:52:36 -0400 |
| commit | 074a8c0db255e79960593122b5458c9a9c0551fa (patch) | |
| tree | 7d1beb94abbca5fdd6b6e1c39e1d482be51cff5a /drivers | |
| parent | f79d9bad37cb1e7ef23d60b1dd0b7859957ced9e (diff) | |
| download | linux-074a8c0db255e79960593122b5458c9a9c0551fa.tar.gz linux-074a8c0db255e79960593122b5458c9a9c0551fa.tar.bz2 linux-074a8c0db255e79960593122b5458c9a9c0551fa.zip | |
ath9k: add support for Tx and Rx STBC
Supported only for single stream rates by the hardware
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/init.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/mac.h | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/xmit.c | 2 |
3 files changed, 15 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 351538cd8e4c..70e5aa415c89 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -214,6 +214,12 @@ static void setup_ht_cap(struct ath_softc *sc, else max_streams = 2; + if (AR_SREV_9280_10_OR_LATER(ah)) { + if (max_streams >= 2) + ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; + ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); + } + /* set up supported mcs set */ memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); tx_streams = count_streams(common->tx_chainmask, max_streams); diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h index 66d0d5e56149..00f3e0c7528a 100644 --- a/drivers/net/wireless/ath/ath9k/mac.h +++ b/drivers/net/wireless/ath/ath9k/mac.h @@ -37,6 +37,8 @@ AR_2040_##_index : 0) \ |((_series)[_index].RateFlags & ATH9K_RATESERIES_HALFGI ? \ AR_GI##_index : 0) \ + |((_series)[_index].RateFlags & ATH9K_RATESERIES_STBC ? \ + AR_STBC##_index : 0) \ |SM((_series)[_index].ChSel, AR_ChainSel##_index)) #define CCK_SIFS_TIME 10 @@ -434,7 +436,10 @@ struct ar5416_desc { #define AR_ChainSel3_S 17 #define AR_RTSCTSRate 0x0ff00000 #define AR_RTSCTSRate_S 20 -#define AR_TxCtlRsvd70 0xf0000000 +#define AR_STBC0 0x10000000 +#define AR_STBC1 0x20000000 +#define AR_STBC2 0x40000000 +#define AR_STBC3 0x80000000 #define AR_TxRSSIAnt00 0x000000ff #define AR_TxRSSIAnt00_S 0 @@ -647,6 +652,7 @@ enum ath9k_rx_filter { #define ATH9K_RATESERIES_RTS_CTS 0x0001 #define ATH9K_RATESERIES_2040 0x0002 #define ATH9K_RATESERIES_HALFGI 0x0004 +#define ATH9K_RATESERIES_STBC 0x0008 struct ath9k_11n_rate_series { u32 Tries; diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 2237658144e6..b0d345a675fe 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1607,6 +1607,8 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) series[i].Rate = rix | 0x80; series[i].PktDuration = ath_pkt_duration(sc, rix, bf, is_40, is_sgi, is_sp); + if (rix < 8 && (tx_info->flags & IEEE80211_TX_CTL_STBC)) + series[i].RateFlags |= ATH9K_RATESERIES_STBC; continue; } |