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ath9k_hw: use standard SIFS time as reference for half/quarter channels

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2012-04-19 21:18:22 +02:00 committed by John W. Linville
parent 0466e2547d
commit e88e486115
1 changed files with 7 additions and 6 deletions
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13
drivers/net/wireless/ath/ath9k/hw.c
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@ -1041,6 +1041,11 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah)
rx_lat = 37;
tx_lat = 54;
if (IS_CHAN_5GHZ(chan))
sifstime = 16;
else
sifstime = 10;
if (IS_CHAN_HALF_RATE(chan)) {
eifs = 175;
rx_lat *= 2;
@ -1048,8 +1053,8 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah)
if (IS_CHAN_A_FAST_CLOCK(ah, chan))
tx_lat += 11;
sifstime *= 2;
slottime = 13;
sifstime = 32;
} else if (IS_CHAN_QUARTER_RATE(chan)) {
eifs = 340;
rx_lat = (rx_lat * 4) - 1;
@ -1057,8 +1062,8 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah)
if (IS_CHAN_A_FAST_CLOCK(ah, chan))
tx_lat += 22;
sifstime *= 4;
slottime = 21;
sifstime = 64;
} else {
if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
@ -1072,10 +1077,6 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah)
tx_lat = MS(reg, AR_USEC_TX_LAT);
slottime = ah->slottime;
if (IS_CHAN_5GHZ(chan))
sifstime = 16;
else
sifstime = 10;
}
/* As defined by IEEE 802.11-2007 17.3.8.6 */