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authorBruno Randolf <bruno@thinktube.com>2008-01-18 21:51:40 +0900
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:10:50 -0800
commite535c1ac7e431f85e9c8ead6dbc977a1e1906736 (patch)
tree04eb2e73445240cb7d3745c219255269f1ea0da4 /drivers
parent1008e0f7b9dd211f918e93090f615e8064aca900 (diff)
downloadop-kernel-dev-e535c1ac7e431f85e9c8ead6dbc977a1e1906736.zip
op-kernel-dev-e535c1ac7e431f85e9c8ead6dbc977a1e1906736.tar.gz
ath5k: beacon interval is in TU
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath5k/ath5k.h4
-rw-r--r--drivers/net/wireless/ath5k/base.c4
-rw-r--r--drivers/net/wireless/ath5k/base.h2
3 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath5k/ath5k.h b/drivers/net/wireless/ath5k/ath5k.h
index 878609f..c79066b 100644
--- a/drivers/net/wireless/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath5k/ath5k.h
@@ -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)
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 5ff115d..de59016 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -2554,7 +2554,7 @@ ath5k_config(struct ieee80211_hw *hw,
{
struct ath5k_softc *sc = hw->priv;
- sc->bintval = conf->beacon_int * 1000 / 1024;
+ sc->bintval = conf->beacon_int;
ath5k_setcurmode(sc, conf->phymode);
return ath5k_chan_set(sc, conf->chan);
@@ -2570,7 +2570,7 @@ ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
/* Set to a reasonable value. Note that this will
* be set to mac80211's value at ath5k_config(). */
- sc->bintval = 1000 * 1000 / 1024;
+ sc->bintval = 1000;
mutex_lock(&sc->lock);
if (sc->vif != vif) {
ret = -EIO;
diff --git a/drivers/net/wireless/ath5k/base.h b/drivers/net/wireless/ath5k/base.h
index 7ba2223..20c9469 100644
--- a/drivers/net/wireless/ath5k/base.h
+++ b/drivers/net/wireless/ath5k/base.h
@@ -164,7 +164,7 @@ struct ath5k_softc {
struct ath5k_buf *bbuf; /* beacon buffer */
unsigned int bhalq, /* SW q for outgoing beacons */
bmisscount, /* missed beacon transmits */
- bintval, /* beacon interval */
+ bintval, /* beacon interval in TU */
bsent;
struct timer_list calib_tim; /* calibration timer */
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