diff options
| author | Sujith Manoharan <c_manoha@qualcomm.com> | 2012-09-26 12:22:08 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-09-28 13:54:06 -0400 |
| commit | 365d2ebcaba5f08590b8a988d137f7139a8163a5 (patch) | |
| tree | 30580b799a6e2599f447b3fecc9ce87507b8a1cb /drivers/net/wireless/ath/ath9k/xmit.c | |
| parent | 8b4509f642743e87f9a5c34bacb5d4b63ac730b4 (diff) | |
ath9k: Fix chainmask selection for AR9462
Force chain 1 to be used for CCK rates since the target power
table stored in EEPROM is too high to transmit with both chains.
This is needed to avoid regulatory violation.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/xmit.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/xmit.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index b088fa0eb02..36618e3a5e6 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1820,10 +1820,14 @@ u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate) { struct ath_hw *ah = sc->sc_ah; struct ath9k_channel *curchan = ah->curchan; + if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (curchan->channelFlags & CHANNEL_5GHZ) && (chainmask == 0x7) && (rate < 0x90)) return 0x3; + else if (AR_SREV_9462(ah) && ath9k_hw_btcoex_is_enabled(ah) && + IS_CCK_RATE(rate)) + return 0x2; else return chainmask; } |