This is useful for MCC debugging and bug fixing.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@xxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ath9k.h | 1 +
drivers/net/wireless/ath/ath9k/channel.c | 19 +++++++++++++++++--
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 4616229..952a467 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -983,6 +983,7 @@ struct ath_softc {
struct ath_offchannel offchannel;
struct ath_chanctx *next_chan;
struct completion go_beacon;
+ struct timespec last_event_time;
#endif
unsigned long driver_data;
diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c
index 8ab856c..65ad7be 100644
--- a/drivers/net/wireless/ath/ath9k/channel.c
+++ b/drivers/net/wireless/ath/ath9k/channel.c
@@ -226,6 +226,20 @@ static const char *chanctx_state_string(enum ath_chanctx_state state)
}
}
+static const u32 chanctx_event_delta(struct ath_softc *sc)
+{
+ u64 ms;
+ struct timespec ts, *old;
+
+ getrawmonotonic(&ts);
+ old = &sc->last_event_time;
+ ms = ts.tv_sec * 1000 + ts.tv_nsec / 1000000;
+ ms -= old->tv_sec * 1000 + old->tv_nsec / 1000000;
+ sc->last_event_time = ts;
+
+ return (u32)ms;
+}
+
void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
@@ -507,10 +521,11 @@ void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
spin_lock_bh(&sc->chan_lock);
- ath_dbg(common, CHAN_CTX, "cur_chan: %d MHz, event: %s, state: %s\n",
+ ath_dbg(common, CHAN_CTX, "cur_chan: %d MHz, event: %s, state: %s, delta: %u ms\n",
sc->cur_chan->chandef.center_freq1,
chanctx_event_string(ev),
- chanctx_state_string(sc->sched.state));
+ chanctx_state_string(sc->sched.state),
+ chanctx_event_delta(sc));
switch (ev) {
case ATH_CHANCTX_EVENT_BEACON_PREPARE:
--
1.9.1
--
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