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ath9k_hw: Improve fast channel change for AR9003 chips

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In order to reduce the overall scan time, fast channel change
should be implemented properly. This patch adds fast channel
change support across band switch or channel mode switch
instead of doing full chip reset. During the fastcc, tx iqcal
measurements are preserved and will be reloaded after successful
the channel change.

This patch also addressed fast channel issue where the STA can not
see APs in higher than operating channel on 5GHz band after
the association.

Cc: Paul Stewart <pstew@google.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan
2011-10-13 11:00:35 +05:30
committed by John W. Linville
parent a240dc7b3c
commit 5f0c04ea1e
6 changed files with 186 additions and 5 deletions
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7
drivers/net/wireless/ath/ath9k/hw-ops.h
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@@ -205,4 +205,11 @@ static inline void ath9k_hw_setup_calibration(struct ath_hw *ah,
ath9k_hw_private_ops(ah)->setup_calibration(ah, currCal);
}
static inline int ath9k_hw_fast_chan_change(struct ath_hw *ah,
struct ath9k_channel *chan,
u8 *ini_reloaded)
{
return ath9k_hw_private_ops(ah)->fast_chan_change(ah, chan,
ini_reloaded);
}
#endif /* ATH9K_HW_OPS_H */