svn commit: r292203 - head/sys/dev/usb/wlan
Andriy Voskoboinyk
avos at FreeBSD.org
Mon Dec 14 12:36:11 UTC 2015
Author: avos
Date: Mon Dec 14 12:36:10 2015
New Revision: 292203
URL: https://svnweb.freebsd.org/changeset/base/292203
Log:
urtwn: add TSF field into RX radiotap header.
Tested with RTL8188EU, MONITOR/STA modes.
Reviewed by: kevlo
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D3831
Modified:
head/sys/dev/usb/wlan/if_urtwn.c
head/sys/dev/usb/wlan/if_urtwnvar.h
Modified: head/sys/dev/usb/wlan/if_urtwn.c
==============================================================================
--- head/sys/dev/usb/wlan/if_urtwn.c Mon Dec 14 11:39:46 2015 (r292202)
+++ head/sys/dev/usb/wlan/if_urtwn.c Mon Dec 14 12:36:10 2015 (r292203)
@@ -259,6 +259,7 @@ static int urtwn_key_delete(struct ieee
static void urtwn_tsf_task_adhoc(void *, int);
static void urtwn_tsf_sync_enable(struct urtwn_softc *,
struct ieee80211vap *);
+static void urtwn_get_tsf(struct urtwn_softc *, uint64_t *);
static void urtwn_set_led(struct urtwn_softc *, int, int);
static void urtwn_set_mode(struct urtwn_softc *, uint8_t);
static void urtwn_ibss_recv_mgmt(struct ieee80211_node *,
@@ -784,6 +785,16 @@ urtwn_rx_frame(struct urtwn_softc *sc, u
struct urtwn_rx_radiotap_header *tap = &sc->sc_rxtap;
tap->wr_flags = 0;
+
+ urtwn_get_tsf(sc, &tap->wr_tsft);
+ if (__predict_false(le32toh((uint32_t)tap->wr_tsft) <
+ le32toh(stat->rxdw5))) {
+ tap->wr_tsft = le32toh(tap->wr_tsft >> 32) - 1;
+ tap->wr_tsft = (uint64_t)htole32(tap->wr_tsft) << 32;
+ } else
+ tap->wr_tsft &= 0xffffffff00000000;
+ tap->wr_tsft += stat->rxdw5;
+
/* Map HW rate index to 802.11 rate. */
if (!(rxdw3 & R92C_RXDW3_HT)) {
tap->wr_rate = ridx2rate[rate];
@@ -2110,6 +2121,12 @@ urtwn_tsf_sync_enable(struct urtwn_softc
}
static void
+urtwn_get_tsf(struct urtwn_softc *sc, uint64_t *buf)
+{
+ urtwn_read_region_1(sc, R92C_TSFTR, (uint8_t *)buf, sizeof(*buf));
+}
+
+static void
urtwn_set_led(struct urtwn_softc *sc, int led, int on)
{
uint8_t reg;
@@ -2162,7 +2179,6 @@ urtwn_ibss_recv_mgmt(struct ieee80211_no
(subtype == IEEE80211_FC0_SUBTYPE_BEACON ||
subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)) {
ni_tstamp = le64toh(ni->ni_tstamp.tsf);
-#ifdef D3831
URTWN_LOCK(sc);
urtwn_get_tsf(sc, &curr_tstamp);
URTWN_UNLOCK(sc);
@@ -2170,10 +2186,6 @@ urtwn_ibss_recv_mgmt(struct ieee80211_no
if (ni_tstamp >= curr_tstamp)
(void) ieee80211_ibss_merge(ni);
-#else
- (void) sc;
- (void) curr_tstamp;
-#endif
}
}
Modified: head/sys/dev/usb/wlan/if_urtwnvar.h
==============================================================================
--- head/sys/dev/usb/wlan/if_urtwnvar.h Mon Dec 14 11:39:46 2015 (r292202)
+++ head/sys/dev/usb/wlan/if_urtwnvar.h Mon Dec 14 12:36:10 2015 (r292203)
@@ -33,6 +33,7 @@
struct urtwn_rx_radiotap_header {
struct ieee80211_radiotap_header wr_ihdr;
+ uint64_t wr_tsft;
uint8_t wr_flags;
uint8_t wr_rate;
uint16_t wr_chan_freq;
@@ -42,7 +43,8 @@ struct urtwn_rx_radiotap_header {
} __packed __aligned(8);
#define URTWN_RX_RADIOTAP_PRESENT \
- (1 << IEEE80211_RADIOTAP_FLAGS | \
+ (1 << IEEE80211_RADIOTAP_TSFT | \
+ 1 << IEEE80211_RADIOTAP_FLAGS | \
1 << IEEE80211_RADIOTAP_RATE | \
1 << IEEE80211_RADIOTAP_CHANNEL | \
1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL | \
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