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ath9k_hw: do not run NF and periodic calibration at the same time

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It can cause inconsistent calibration results or in some cases turn the
radio deaf.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2014-10-25 17:19:31 +02:00 committed by John W. Linville
parent 7b8aaead95
commit 6339244b3b
1 changed files with 13 additions and 14 deletions
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27
drivers/net/wireless/ath/ath9k/ar9002_calib.c
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@ -660,27 +660,26 @@ static void ar9002_hw_olc_temp_compensation(struct ath_hw *ah)
static int ar9002_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
u8 rxchainmask, bool longcal)
{
bool iscaldone = true;
struct ath9k_cal_list *currCal = ah->cal_list_curr;
bool nfcal, nfcal_pending = false;
bool nfcal, nfcal_pending = false, percal_pending;
int ret;
nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF);
if (ah->caldata)
nfcal_pending = test_bit(NFCAL_PENDING, &ah->caldata->cal_flags);
if (currCal && !nfcal &&
(currCal->calState == CAL_RUNNING ||
currCal->calState == CAL_WAITING)) {
iscaldone = ar9002_hw_per_calibration(ah, chan,
rxchainmask, currCal);
if (iscaldone) {
ah->cal_list_curr = currCal = currCal->calNext;
percal_pending = (currCal &&
(currCal->calState == CAL_RUNNING ||
currCal->calState == CAL_WAITING));
if (currCal->calState == CAL_WAITING) {
iscaldone = false;
ath9k_hw_reset_calibration(ah, currCal);
}
if (percal_pending && !nfcal) {
if (!ar9002_hw_per_calibration(ah, chan, rxchainmask, currCal))
return 0;
ah->cal_list_curr = currCal = currCal->calNext;
if (currCal->calState == CAL_WAITING) {
ath9k_hw_reset_calibration(ah, currCal);
return 0;
}
}
@ -710,7 +709,7 @@ static int ar9002_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
}
}
return iscaldone;
return !percal_pending;
}
/* Carrier leakage Calibration fix */