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ath5k: beacon interval is in TU

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the beacon interval is passed by mac80211 in TU already, so we can directly use
it without conversion. also update the comments about TU (1 TU is defined by
802.11 as 1024usec).

drivers/net/wireless/ath5k/ath5k.h:     Changes-licensed-under: ISC
drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD
drivers/net/wireless/ath5k/base.h:      Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bruno Randolf
2008-01-18 21:51:40 +09:00
committed by David S. Miller
parent 1008e0f7b9
commit e535c1ac7e
3 changed files with 5 additions and 5 deletions
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4
drivers/net/wireless/ath5k/ath5k.h
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@@ -486,8 +486,8 @@ struct ath5k_beacon_state {
* TSF to TU conversion:
*
* TSF is a 64bit value in usec (microseconds).
* TU is a 32bit value in roughly msec (milliseconds): usec / 1024
* (1000ms equals 976 TU)
* TU is a 32bit value and defined by IEEE802.11 (page 6) as "A measurement of
* time equal to 1024 usec", so it's roughly milliseconds (usec / 1024).
*/
#define TSF_TO_TU(_tsf) (u32)((_tsf) >> 10)