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ath9k: check for Rx-STBC flag and pass it to ieee80211

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This patch make use of STBC flag in DMA RX descriptor.
Only devices after ar9280 can provide this information.

If card support it we will set HAVE_STBC flag, to show
clint programm thet STBC is supported but not received.

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
2013-05-24 20:30:59 +02:00
committed by John W. Linville
parent ab27610335
commit b0a1ae976d
3 changed files with 15 additions and 3 deletions
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5
drivers/net/wireless/ath/ath9k/mac.c
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@@ -593,6 +593,11 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
(ads.ds_rxstatus3 & AR_GI) ? RX_FLAG_SHORT_GI : 0;
rs->flag |=
(ads.ds_rxstatus3 & AR_2040) ? RX_FLAG_40MHZ : 0;
if (AR_SREV_9280_20_OR_LATER(ah))
rs->flag |=
(ads.ds_rxstatus3 & AR_STBC) ?
/* we can only Nss=1 STBC */
(1 << RX_FLAG_STBC_SHIFT) : 0;
if (ads.ds_rxstatus8 & AR_PreDelimCRCErr)
rs->rs_flags |= ATH9K_RX_DELIM_CRC_PRE;