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ath9k: add support for DFS master mode

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These are the remaining knobs in ath9k to support DFS:
* mark AR9280 and AR9580 as DFS tested
* synchronize DFS regulatory domain to reg notifyer
* set required RX filter flags for radar detection
* process radar PHY errors at DFS detector
* notify DFS master on radar detection

DFS support requires CONFIG_ATH9K_DFS_CERTIFIED to be set.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Zefir Kurtisi
2013-04-03 18:31:31 +02:00
committed by John W. Linville
parent e39282ee1b
commit 73e4937d48
5 changed files with 35 additions and 6 deletions
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7
drivers/net/wireless/ath/ath9k/recv.c
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@@ -381,6 +381,10 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
rfilt = ATH9K_RX_FILTER_UCAST | ATH9K_RX_FILTER_BCAST
| ATH9K_RX_FILTER_MCAST;
/* if operating on a DFS channel, enable radar pulse detection */
if (sc->hw->conf.radar_enabled)
rfilt |= ATH9K_RX_FILTER_PHYRADAR | ATH9K_RX_FILTER_PHYERR;
if (sc->rx.rxfilter & FIF_PROBE_REQ)
rfilt |= ATH9K_RX_FILTER_PROBEREQ;
@@ -1228,6 +1232,9 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
unlikely(tsf_lower - rs.rs_tstamp > 0x10000000))
rxs->mactime += 0x100000000ULL;
if (rs.rs_phyerr == ATH9K_PHYERR_RADAR)
ath9k_dfs_process_phyerr(sc, hdr, &rs, rxs->mactime);
if (rs.rs_status & ATH9K_RXERR_PHY) {
if (ath_process_fft(sc, hdr, &rs, rxs->mactime)) {
RX_STAT_INC(rx_spectral);