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authorJohannes Berg <johannes@sipsolutions.net>2008-02-18 18:53:55 +0100
committerJohn W. Linville <linville@tuxdriver.com>2008-02-29 15:37:12 -0500
commitd007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736 (patch)
tree55bc6a2d04105489f6919b6c422e64fd3ff21ce2 /drivers/net/wireless/b43/xmit.c
parentaa68cbfb20b417d68dc45c9ef5f3e51546b438b0 (diff)
b43(legacy): include full timestamp in beacon frames
Having the full RX timestamp in beacons is necessary for IBSS merge to work properly so extend the 16-bit timestamp to the full 64 bits for beacon frames (as well as when monitor mode is active.) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/xmit.c')
-rw-r--r--drivers/net/wireless/b43/xmit.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index 4014b6c8272..187c11bee0f 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -589,12 +589,16 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT);
/*
- * If monitors are present get full 64-bit timestamp. This
- * code assumes we get to process the packet within 16 bits
- * of timestamp, i.e. about 65 milliseconds after the PHY
- * received the first symbol.
+ * All frames on monitor interfaces and beacons always need a full
+ * 64-bit timestamp. Monitor interfaces need it for diagnostic
+ * purposes and beacons for IBSS merging.
+ * This code assumes we get to process the packet within 16 bits
+ * of timestamp, i.e. about 65 milliseconds after the PHY received
+ * the first symbol.
*/
- if (dev->wl->radiotap_enabled) {
+ if (((fctl & (IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE))
+ == (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON)) ||
+ dev->wl->radiotap_enabled) {
u16 low_mactime_now;
b43_tsf_read(dev, &status.mactime);