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authorPeter Oh <poh@qca.qualcomm.com>2015-03-04 15:43:46 +0200
committerKalle Valo <kvalo@qca.qualcomm.com>2015-03-05 15:55:35 +0200
commitdab74cde38dab36cad20caa8aba26cc0e244dbb5 (patch)
tree01ebaaeb822f95f6f1672387b1bedefce0efd8e3 /drivers/net/wireless/ath/dfs_pri_detector.c
parent2c3f26a065054ec942e5b48fc273b592c3f45238 (diff)
ath: enhance radar detection by looking up chirp
Certain radar types such as FCC radar type 5 are using chirp in their pulses, hence looking up the chirp status will enhance to avoid false radar detection. Signed-off-by: Peter Oh <poh@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/dfs_pri_detector.c')
-rw-r--r--drivers/net/wireless/ath/dfs_pri_detector.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/dfs_pri_detector.c b/drivers/net/wireless/ath/dfs_pri_detector.c
index 43b608178884..1b5ad1965607 100644
--- a/drivers/net/wireless/ath/dfs_pri_detector.c
+++ b/drivers/net/wireless/ath/dfs_pri_detector.c
@@ -390,6 +390,10 @@ static struct pri_sequence *pri_detector_add_pulse(struct pri_detector *de,
if ((ts - de->last_ts) < rs->max_pri_tolerance)
/* if delta to last pulse is too short, don't use this pulse */
return NULL;
+ /* radar detector spec needs chirp, but not detected */
+ if (rs->chirp && rs->chirp != event->chirp)
+ return NULL;
+
de->last_ts = ts;
max_updated_seq = pseq_handler_add_to_existing_seqs(de, ts);