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ath9k: add stbc support

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20976 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2010-04-18 00:56:38 +00:00
parent accf7948da
commit bf1e04335e
3 changed files with 99 additions and 0 deletions
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29
package/mac80211/patches/565-mac80211_rx_stbc_define.patch Normal file
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@ -0,0 +1,29 @@
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -876,6 +876,7 @@ struct ieee80211_ht_cap {
#define IEEE80211_HT_CAP_SGI_40 0x0040
#define IEEE80211_HT_CAP_TX_STBC 0x0080
#define IEEE80211_HT_CAP_RX_STBC 0x0300
+#define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
#define IEEE80211_HT_CAP_DELAY_BA 0x0400
#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
#define IEEE80211_HT_CAP_DSSSCCK40 0x1000
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -275,6 +275,8 @@ struct ieee80211_bss_conf {
* MLME command (internal to mac80211 to figure out whether to send TX
* status to user space)
* @IEEE80211_TX_CTL_LDPC: tells the driver to use LDPC for this frame
+ * @IEEE80211_TX_CTL_STBC: tells the driver to use Space-Time Block Coding
+ * (STBC) for this frame.
*/
enum mac80211_tx_control_flags {
IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0),
@@ -299,6 +301,7 @@ enum mac80211_tx_control_flags {
IEEE80211_TX_INTFL_HAS_RADIOTAP = BIT(20),
IEEE80211_TX_INTFL_NL80211_FRAME_TX = BIT(21),
IEEE80211_TX_CTL_LDPC = BIT(22),
+ IEEE80211_TX_CTL_STBC = BIT(23),
};
/**

57
package/mac80211/patches/566-ath9k_stbc_support.patch Normal file
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@ -0,0 +1,57 @@
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -217,6 +217,12 @@ static void setup_ht_cap(struct ath_soft
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);
--- 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;
--- 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_
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;
}

13
package/mac80211/patches/567-ath9k_rc_stbc_support.patch Normal file
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@ -0,0 +1,13 @@
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -700,6 +700,10 @@ static void ath_get_rate(void *priv, str
(sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING))
tx_info->flags |= IEEE80211_TX_CTL_LDPC;
+ if (conf_is_ht(&sc->hw->conf) &&
+ (sta->ht_cap.cap & IEEE80211_HT_CAP_TX_STBC))
+ tx_info->flags |= IEEE80211_TX_CTL_STBC;
+
if (is_probe) {
/* set one try for probe rates. For the
* probes don't enable rts */