diff options
| author | Sujith <Sujith.Manoharan@atheros.com> | 2010-04-16 10:23:57 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-04-16 23:47:09 +0400 |
| commit | 7d0d0df0eca695c83a08dc386824a9d1d7c526a4 (patch) | |
| tree | df2104a15ef84bcd15478e956b3458241b3b7a78 /drivers/net/wireless/ath/ath9k/ani.c | |
| parent | 6819d57f07440a8f9540967d9212a70e9c98eceb (diff) | |
| download | linux-7d0d0df0eca695c83a08dc386824a9d1d7c526a4.tar.xz | |
ath9k_hw: Use buffered register writes
This patch adds macros at certain places
which could be optimized for multiple register writes.
The performance of ath9k_htc improves considerably,
especially reducing the latency involved in a scan run.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ani.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ani.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c index 5a2d867a4e92..cec62d311c78 100644 --- a/drivers/net/wireless/ath/ath9k/ani.c +++ b/drivers/net/wireless/ath/ath9k/ani.c @@ -79,11 +79,17 @@ static void ath9k_ani_restart(struct ath_hw *ah) "Writing ofdmbase=%u cckbase=%u\n", aniState->ofdmPhyErrBase, aniState->cckPhyErrBase); + + ENABLE_REGWRITE_BUFFER(ah); + REG_WRITE(ah, AR_PHY_ERR_1, aniState->ofdmPhyErrBase); REG_WRITE(ah, AR_PHY_ERR_2, aniState->cckPhyErrBase); REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING); REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING); + REGWRITE_BUFFER_FLUSH(ah); + DISABLE_REGWRITE_BUFFER(ah); + ath9k_hw_update_mibstats(ah, &ah->ah_mibStats); aniState->ofdmPhyErrCount = 0; @@ -357,8 +363,14 @@ void ath9k_ani_reset(struct ath_hw *ah) ath9k_hw_setrxfilter(ah, ath9k_hw_getrxfilter(ah) & ~ATH9K_RX_FILTER_PHYERR); ath9k_ani_restart(ah); + + ENABLE_REGWRITE_BUFFER(ah); + REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING); REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING); + + REGWRITE_BUFFER_FLUSH(ah); + DISABLE_REGWRITE_BUFFER(ah); } void ath9k_hw_ani_monitor(struct ath_hw *ah, @@ -456,6 +468,8 @@ void ath9k_enable_mib_counters(struct ath_hw *ah) ath9k_hw_update_mibstats(ah, &ah->ah_mibStats); + ENABLE_REGWRITE_BUFFER(ah); + REG_WRITE(ah, AR_FILT_OFDM, 0); REG_WRITE(ah, AR_FILT_CCK, 0); REG_WRITE(ah, AR_MIBC, @@ -463,6 +477,9 @@ void ath9k_enable_mib_counters(struct ath_hw *ah) & 0x0f); REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING); REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING); + + REGWRITE_BUFFER_FLUSH(ah); + DISABLE_REGWRITE_BUFFER(ah); } /* Freeze the MIB counters, get the stats and then clear them */ @@ -626,8 +643,14 @@ void ath9k_hw_ani_init(struct ath_hw *ah) ath_print(common, ATH_DBG_ANI, "Setting cckErrBase = 0x%08x\n", ah->ani[0].cckPhyErrBase); + ENABLE_REGWRITE_BUFFER(ah); + REG_WRITE(ah, AR_PHY_ERR_1, ah->ani[0].ofdmPhyErrBase); REG_WRITE(ah, AR_PHY_ERR_2, ah->ani[0].cckPhyErrBase); + + REGWRITE_BUFFER_FLUSH(ah); + DISABLE_REGWRITE_BUFFER(ah); + ath9k_enable_mib_counters(ah); ah->aniperiod = ATH9K_ANI_PERIOD; |