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| author | David S. Miller <davem@davemloft.net> | 2009-11-18 10:55:32 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-18 10:55:32 -0800 |
| commit | dfef948ed2ba69cf041840b5e860d6b4e16fa0b1 (patch) | |
| tree | eab385cabe589346bcf19385c997ab8dabaef7bd /drivers/net/wireless/ath/ath9k/hw.c | |
| parent | ea31ba359c55e0734ff895692185d4c50cf0c537 (diff) | |
| parent | c85e9d7739fc8d879c4293ea020760926d6f87cd (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 111ff049f75..b25eedf67e0 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -3710,6 +3710,21 @@ void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting) } EXPORT_SYMBOL(ath9k_hw_set_tsfadjust); +/* + * Extend 15-bit time stamp from rx descriptor to + * a full 64-bit TSF using the current h/w TSF. +*/ +u64 ath9k_hw_extend_tsf(struct ath_hw *ah, u32 rstamp) +{ + u64 tsf; + + tsf = ath9k_hw_gettsf64(ah); + if ((tsf & 0x7fff) < rstamp) + tsf -= 0x8000; + return (tsf & ~0x7fff) | rstamp; +} +EXPORT_SYMBOL(ath9k_hw_extend_tsf); + bool ath9k_hw_setslottime(struct ath_hw *ah, u32 us) { if (us < ATH9K_SLOT_TIME_9 || us > ath9k_hw_mac_to_usec(ah, 0xffff)) { |