diff options
| author | Rajkumar Manoharan <rmanohar@qca.qualcomm.com> | 2012-10-10 13:33:02 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-10-19 16:16:14 -0400 |
| commit | 424749c75daf3611a68a49eca5940ac2b74e4406 (patch) | |
| tree | 10b86b2f70aac788ead6c49381ebe324be0dd982 /drivers/net/wireless/ath/ath9k/main.c | |
| parent | b4764c809a306ea37b6409494896e919bbb5ec5f (diff) | |
ath9k: perform ANI cycle in idle state
As of now the ANI cycle is executed only when the chip is awake.
On idle state case, the station wakes up from network sleep for
beacon reception. Since most of the time, ANI cycle is not syncing
with beacon wakeup, ANI cycle is ignored. Approx 5 mins once, the
calibration is performed. This could affect the connection stability
when the station is idle for long. Even though the OFDM and CCK phy
error rates are too high, ANI is unable to tune its immunity level
as quick enough due to rare execution.
Here the experiment shows that OFDM and CCK levels are at default
even on higher phy error rate.
listenTime=44 OFDM:3 errs=121977/s CCK:2 errs=440818/s ofdm_turn=1
This change ensures that ANI calibration will be exectued atleast
once for every 10 seconds. The below result shows improvements and
immunity levels are adopted quick enough.
listenTime=557 OFDM:4 errs=752/s CCK:4 errs=125/s ofdm_turn=0
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index dd45edfa6bae..2da62be081f7 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c | |||
| @@ -131,7 +131,8 @@ void ath9k_ps_restore(struct ath_softc *sc) | |||
| 131 | !(sc->ps_flags & (PS_WAIT_FOR_BEACON | | 131 | !(sc->ps_flags & (PS_WAIT_FOR_BEACON | |
| 132 | PS_WAIT_FOR_CAB | | 132 | PS_WAIT_FOR_CAB | |
| 133 | PS_WAIT_FOR_PSPOLL_DATA | | 133 | PS_WAIT_FOR_PSPOLL_DATA | |
| 134 | PS_WAIT_FOR_TX_ACK))) { | 134 | PS_WAIT_FOR_TX_ACK | |
| 135 | PS_WAIT_FOR_ANI))) { | ||
| 135 | mode = ATH9K_PM_NETWORK_SLEEP; | 136 | mode = ATH9K_PM_NETWORK_SLEEP; |
| 136 | if (ath9k_hw_btcoex_is_enabled(sc->sc_ah)) | 137 | if (ath9k_hw_btcoex_is_enabled(sc->sc_ah)) |
| 137 | ath9k_btcoex_stop_gen_timer(sc); | 138 | ath9k_btcoex_stop_gen_timer(sc); |