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ath5k: run NF calibration only every 60 seconds

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Since NF calibration interferes with TX and RX and also has been the cause of
other problems (when it's run concurrently with ath5k_reset) we want to run it
less often - every 60 seconds for now.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bruno Randolf 2010-05-19 10:31:10 +09:00 committed by John W. Linville
parent 0e8e02dddc
commit afe86286a1
2 changed files with 13 additions and 7 deletions
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2
drivers/net/wireless/ath/ath5k/ath5k.h
View File

@ -204,6 +204,7 @@
#define AR5K_TUNE_TPC_TXPOWER false #define AR5K_TUNE_TPC_TXPOWER false
#define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 10000 /* 10 sec */ #define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 10000 /* 10 sec */
#define ATH5K_TUNE_CALIBRATION_INTERVAL_ANI 1000 /* 1 sec */ #define ATH5K_TUNE_CALIBRATION_INTERVAL_ANI 1000 /* 1 sec */
#define ATH5K_TUNE_CALIBRATION_INTERVAL_NF 60000 /* 60 sec */
#define AR5K_INIT_CARR_SENSE_EN 1 #define AR5K_INIT_CARR_SENSE_EN 1
@ -1118,6 +1119,7 @@ struct ath5k_hw {
/* Calibration timestamp */ /* Calibration timestamp */
unsigned long ah_cal_next_full; unsigned long ah_cal_next_full;
unsigned long ah_cal_next_ani; unsigned long ah_cal_next_ani;
unsigned long ah_cal_next_nf;
/* Calibration mask */ /* Calibration mask */
u8 ah_cal_mask; u8 ah_cal_mask;

18
drivers/net/wireless/ath/ath5k/base.c
View File

@ -2803,14 +2803,16 @@ ath5k_tasklet_calibrate(unsigned long data)
ieee80211_frequency_to_channel( ieee80211_frequency_to_channel(
sc->curchan->center_freq)); sc->curchan->center_freq));
/* TODO: We don't need to run noise floor calibration as often
* as I/Q calibration.*/
/* Noise floor calibration interrupts rx/tx path while I/Q calibration /* Noise floor calibration interrupts rx/tx path while I/Q calibration
* doesn't. Stop queues so that calibration doesn't interfere with tx */ * doesn't. We stop the queues so that calibration doesn't interfere
ieee80211_stop_queues(sc->hw); * with TX and don't run it as often */
ath5k_hw_update_noise_floor(ah); if (time_is_before_eq_jiffies(ah->ah_cal_next_nf)) {
ieee80211_wake_queues(sc->hw); ah->ah_cal_next_nf = jiffies +
msecs_to_jiffies(ATH5K_TUNE_CALIBRATION_INTERVAL_NF);
ieee80211_stop_queues(sc->hw);
ath5k_hw_update_noise_floor(ah);
ieee80211_wake_queues(sc->hw);
}
ah->ah_cal_mask &= ~AR5K_CALIBRATION_FULL; ah->ah_cal_mask &= ~AR5K_CALIBRATION_FULL;
} }
@ -2931,6 +2933,8 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan)
ah->ah_cal_next_full = jiffies; ah->ah_cal_next_full = jiffies;
ah->ah_cal_next_ani = jiffies; ah->ah_cal_next_ani = jiffies;
ah->ah_cal_next_nf = jiffies;
/* /*
* Change channels and update the h/w rate map if we're switching; * Change channels and update the h/w rate map if we're switching;
* e.g. 11a to 11b/g. * e.g. 11a to 11b/g.