diff options
| author | Andriy Voskoboinyk <avos@FreeBSD.org> | 2017-03-01 00:42:38 +0000 |
|---|---|---|
| committer | Andriy Voskoboinyk <avos@FreeBSD.org> | 2017-03-01 00:42:38 +0000 |
| commit | 7ab1926316902a74784b4224b3f91107b8c8f4d6 (patch) | |
| tree | 048d4219a43e9f213fed444148a236cc680da09f /sys/dev/iwn/if_iwn.c | |
| parent | 4b6c378be3fb98948d7f451e5b78d18e029e3c52 (diff) | |
iwn: fix data rate parsing for Rx radiotap header.
Tested with Intel 6205, MONITOR mode + RTL8188EU, STA mode.
Notes
Notes:
svn path=/head/; revision=314443
Diffstat (limited to 'sys/dev/iwn/if_iwn.c')
| -rw-r--r-- | sys/dev/iwn/if_iwn.c | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/sys/dev/iwn/if_iwn.c b/sys/dev/iwn/if_iwn.c index f430127e0aa2..c1e7f8a422c4 100644 --- a/sys/dev/iwn/if_iwn.c +++ b/sys/dev/iwn/if_iwn.c @@ -2667,6 +2667,26 @@ rate2plcp(int rate) return 0; } +static __inline uint8_t +plcp2rate(const uint8_t rate_plcp) +{ + switch (rate_plcp) { + case 0xd: return 12; + case 0xf: return 18; + case 0x5: return 24; + case 0x7: return 36; + case 0x9: return 48; + case 0xb: return 72; + case 0x1: return 96; + case 0x3: return 108; + case 10: return 2; + case 20: return 4; + case 55: return 11; + case 110: return 22; + default: return 0; + } +} + static int iwn_get_1stream_tx_antmask(struct iwn_softc *sc) { @@ -3078,6 +3098,7 @@ iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, if (ieee80211_radiotap_active(ic)) { struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap; + uint32_t rate = le32toh(stat->rate); tap->wr_flags = 0; if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE)) @@ -3085,24 +3106,11 @@ iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, tap->wr_dbm_antsignal = (int8_t)rssi; tap->wr_dbm_antnoise = (int8_t)nf; tap->wr_tsft = stat->tstamp; - switch (stat->rate) { - /* CCK rates. */ - case 10: tap->wr_rate = 2; break; - case 20: tap->wr_rate = 4; break; - case 55: tap->wr_rate = 11; break; - case 110: tap->wr_rate = 22; break; - /* OFDM rates. */ - case 0xd: tap->wr_rate = 12; break; - case 0xf: tap->wr_rate = 18; break; - case 0x5: tap->wr_rate = 24; break; - case 0x7: tap->wr_rate = 36; break; - case 0x9: tap->wr_rate = 48; break; - case 0xb: tap->wr_rate = 72; break; - case 0x1: tap->wr_rate = 96; break; - case 0x3: tap->wr_rate = 108; break; - /* Unknown rate: should not happen. */ - default: tap->wr_rate = 0; - } + if (rate & IWN_RFLAG_MCS) { + tap->wr_rate = rate & IWN_RFLAG_RATE_MCS; + tap->wr_rate |= IEEE80211_RATE_MCS; + } else + tap->wr_rate = plcp2rate(rate & IWN_RFLAG_RATE); } /* |