diff options
| author | Rajkumar Manoharan <rmanohar@qca.qualcomm.com> | 2012-03-15 00:04:26 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-04-09 20:05:52 (GMT) |
| commit | 54da20d83f0e7fe87b75aec44bc2b1448d119320 (patch) | |
| tree | aee471dfdc06698c83ce38b563e4926a5838bb0c /drivers/net/wireless/ath/ath9k/ani.h | |
| parent | 7dd30d447b7f4a129586cce8e57d0163dde876b0 (diff) | |
| download | linux-54da20d83f0e7fe87b75aec44bc2b1448d119320.tar.xz | |
ath9k_hw: improve ANI processing and rx desensitizing parameters
This patch improves ANI operations by switching among the immunity
levels based on PHY errors and beacon rssi which will adjust receiver
desensitizing parameters. The changes are
* Configure the Weak Signal Detection based on current immunity value.
* At highest OFDM immunity level poor performance was observed with
strong interference. By tuning the FIR step and spur immunity levels
and not changing any weak signal detection thresholds at any level
helped to improve the performance.
* ANI took long time to recover back to lower immunity levels on heavy
data load. As the listen time got reset to zero before reaching to
the 5x of aniperiod, the immunity level is not lowering back even
without any interference. This patch fix that.
Cc: Paul Stewart <pstew@google.com>
Cc: Susinder Gulasekaran <susinder@qca.qualcomm.com>
Signed-off-by: Suresh Chandrasekaran <csuresh@qca.qualcomm.com>
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/ani.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ani.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h index 83029d6..72e2b87 100644 --- a/drivers/net/wireless/ath/ath9k/ani.h +++ b/drivers/net/wireless/ath/ath9k/ani.h @@ -25,11 +25,13 @@ /* units are errors per second */ #define ATH9K_ANI_OFDM_TRIG_HIGH_OLD 500 -#define ATH9K_ANI_OFDM_TRIG_HIGH_NEW 1000 +#define ATH9K_ANI_OFDM_TRIG_HIGH_NEW 3500 +#define ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI 1000 /* units are errors per second */ #define ATH9K_ANI_OFDM_TRIG_LOW_OLD 200 #define ATH9K_ANI_OFDM_TRIG_LOW_NEW 400 +#define ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI 900 /* units are errors per second */ #define ATH9K_ANI_CCK_TRIG_HIGH_OLD 200 @@ -53,7 +55,7 @@ #define ATH9K_ANI_RSSI_THR_LOW 7 #define ATH9K_ANI_PERIOD_OLD 100 -#define ATH9K_ANI_PERIOD_NEW 1000 +#define ATH9K_ANI_PERIOD_NEW 300 /* in ms */ #define ATH9K_ANI_POLLINTERVAL_OLD 100 |