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urtw(4): export TSF timestamp for received frames via radiotap

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Tested with Netgear WG111 v3 (RTL8187B), STA mode.

MFC after:	1 week
This commit is contained in:
Andriy Voskoboinyk 2019-03-30 09:24:06 +00:00
parent af4f9e5f00
commit cb5d2742ff
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=345729
2 changed files with 11 additions and 1 deletions
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8
sys/dev/usb/wlan/if_urtw.c
View File

@ -3932,6 +3932,7 @@ urtw_rxeof(struct usb_xfer *xfer, struct urtw_data *data, int *rssi_p,
struct urtw_softc *sc = data->sc;
struct ieee80211com *ic = &sc->sc_ic;
uint8_t noise = 0, rate;
uint64_t mactime;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
@ -3951,6 +3952,9 @@ urtw_rxeof(struct usb_xfer *xfer, struct urtw_data *data, int *rssi_p,
/* XXX correct? */
rssi = rx->rssi & URTW_RX_RSSI_MASK;
noise = rx->noise;
if (ieee80211_radiotap_active(ic))
mactime = rx->mactime;
} else {
struct urtw_8187l_rxhdr *rx;
@ -3967,6 +3971,9 @@ urtw_rxeof(struct usb_xfer *xfer, struct urtw_data *data, int *rssi_p,
/* XXX correct? */
rssi = rx->rssi & URTW_RX_8187L_RSSI_MASK;
noise = rx->noise;
if (ieee80211_radiotap_active(ic))
mactime = rx->mactime;
}
if (flen < IEEE80211_ACK_LEN)
@ -3986,6 +3993,7 @@ urtw_rxeof(struct usb_xfer *xfer, struct urtw_data *data, int *rssi_p,
if (ieee80211_radiotap_active(ic)) {
struct urtw_rx_radiotap_header *tap = &sc->sc_rxtap;
tap->wr_tsf = mactime;
tap->wr_flags = 0;
tap->wr_dbm_antsignal = (int8_t)rssi;
}

4
sys/dev/usb/wlan/if_urtwvar.h
View File

@ -55,6 +55,7 @@ typedef STAILQ_HEAD(, urtw_data) urtw_datahead;
struct urtw_rx_radiotap_header {
struct ieee80211_radiotap_header wr_ihdr;
uint64_t wr_tsf;
uint8_t wr_flags;
uint8_t wr_pad;
uint16_t wr_chan_freq;
@ -63,7 +64,8 @@ struct urtw_rx_radiotap_header {
} __packed __aligned(8);
#define URTW_RX_RADIOTAP_PRESENT \
((1 << IEEE80211_RADIOTAP_FLAGS) | \
((1 << IEEE80211_RADIOTAP_TSFT) | \
(1 << IEEE80211_RADIOTAP_FLAGS) | \
(1 << IEEE80211_RADIOTAP_CHANNEL) | \
(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL))