diff options
| author | Sujith <Sujith.Manoharan@atheros.com> | 2010-03-17 14:25:20 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-03-23 16:50:14 -0400 |
| commit | 2cbfaea48500ce98588e31bd806bbfb524b36b31 (patch) | |
| tree | 43794b07ff48ac6f81777fd4049ffa21471ed661 /drivers/net/wireless | |
| parent | 6398dc039d92b12805a900b3f82a033007a5b465 (diff) | |
ath9k_hw: restrict valid nf readings for AR9271 to -114
Noisefloor values read on AR9271 are unreliable if they
are less than -114, set those statically to -116.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/calib.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index 0c3e9c8fa01..e76dd749865 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -101,6 +101,10 @@ static void ath9k_hw_do_getnf(struct ath_hw *ah, nf = 0 - ((nf ^ 0x1ff) + 1); ath_print(common, ATH_DBG_CALIBRATE, "NF calibrated [ctl] [chain 0] is %d\n", nf); + + if (AR_SREV_9271(ah) && (nf >= -114)) + nf = -116; + nfarray[0] = nf; if (!AR_SREV_9285(ah) && !AR_SREV_9271(ah)) { @@ -139,6 +143,10 @@ static void ath9k_hw_do_getnf(struct ath_hw *ah, nf = 0 - ((nf ^ 0x1ff) + 1); ath_print(common, ATH_DBG_CALIBRATE, "NF calibrated [ext] [chain 0] is %d\n", nf); + + if (AR_SREV_9271(ah) && (nf >= -114)) + nf = -116; + nfarray[3] = nf; if (!AR_SREV_9285(ah) && !AR_SREV_9271(ah)) { |