Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-02 02:01:29 +00:00
Code Issues Packages Projects Releases Wiki Activity

ath5k: run NF calibration only every 60 seconds

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/ath/ath5k/ath5k.h
View File

@ -204,6 +204,7 @@
#define AR5K_TUNE_TPC_TXPOWER false
#define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 10000 /* 10 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
@ -1118,6 +1119,7 @@ struct ath5k_hw {
/* Calibration timestamp */
unsigned long ah_cal_next_full;
unsigned long ah_cal_next_ani;
unsigned long ah_cal_next_nf;
/* Calibration 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(
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
* doesn't. Stop queues so that calibration doesn't interfere with tx */
ieee80211_stop_queues(sc->hw);
ath5k_hw_update_noise_floor(ah);
ieee80211_wake_queues(sc->hw);
* doesn't. We stop the queues so that calibration doesn't interfere
* with TX and don't run it as often */
if (time_is_before_eq_jiffies(ah->ah_cal_next_nf)) {
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;
}
@ -2931,6 +2933,8 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan)
ah->ah_cal_next_full = 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;
* e.g. 11a to 11b/g.