diff options
Diffstat (limited to 'drivers/net/wireless/ath/ar9170/mac.c')
| -rw-r--r-- | drivers/net/wireless/ath/ar9170/mac.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ar9170/mac.c b/drivers/net/wireless/ath/ar9170/mac.c index 0e5967dd119c..45986b6eadbc 100644 --- a/drivers/net/wireless/ath/ar9170/mac.c +++ b/drivers/net/wireless/ath/ar9170/mac.c @@ -72,6 +72,24 @@ int ar9170_set_qos(struct ar9170 *ar) return ar9170_regwrite_result(); } +static int ar9170_set_ampdu_density(struct ar9170 *ar, u8 mpdudensity) +{ + u32 val; + + /* don't allow AMPDU density > 8us */ + if (mpdudensity > 6) + return -EINVAL; + + /* Watch out! Otus uses slightly different density values. */ + val = 0x140a00 | (mpdudensity ? (mpdudensity + 1) : 0); + + ar9170_regwrite_begin(ar); + ar9170_regwrite(AR9170_MAC_REG_AMPDU_SET, val); + ar9170_regwrite_finish(); + + return ar9170_regwrite_result(); +} + int ar9170_init_mac(struct ar9170 *ar) { ar9170_regwrite_begin(ar); @@ -296,6 +314,11 @@ int ar9170_set_operating_mode(struct ar9170 *ar) if (err) return err; + /* set AMPDU density to 8us. */ + err = ar9170_set_ampdu_density(ar, 6); + if (err) + return err; + ar9170_regwrite_begin(ar); ar9170_regwrite(AR9170_MAC_REG_POWERMANAGEMENT, pm_mode); |