Author: rpaulo
Date: Sun Jun 30 06:04:00 2013
New Revision: 252405
URL: http://svnweb.freebsd.org/changeset/base/252405
Log:
Fix the RSSI calculation.
Modified:
head/sys/dev/usb/wlan/if_urtwn.c
Modified: head/sys/dev/usb/wlan/if_urtwn.c
==============================================================================
--- head/sys/dev/usb/wlan/if_urtwn.c Sun Jun 30 05:56:13 2013
(r252404)
+++ head/sys/dev/usb/wlan/if_urtwn.c Sun Jun 30 06:04:00 2013
(r252405)
@@ -80,6 +80,7 @@ SYSCTL_INT(_hw_usb_urtwn, OID_AUTO, debu
"Debug level");
#endif
+#define URTWN_RSSI((r)) (r) - 110
#define IEEE80211_HAS_ADDR4(wh) \
(((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
@@ -610,6 +611,11 @@ urtwn_rx_frame(struct urtwn_softc *sc, u
rssi = urtwn_get_rssi(sc, rate, &stat[1]);
/* Update our average RSSI. */
urtwn_update_avgrssi(sc, rate, rssi);
+ /*
+ * Convert the RSSI to a range that will be accepted
+ * by net80211.
+ */
+ rssi = URTWN_RSSI(rssi);
}
m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
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