mac80211: add command to get current rssi

Get current rssi (in dBm) from the driver/FW.

Instead of reporting the signal received in the last
rx packet, which might be inaccurate if rx traffic is
low and beacon filtering is enabled, get the signal
from the driver/FW.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 6de00b2c268c..a0f7d357884d 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -1218,6 +1218,32 @@ DEFINE_EVENT(release_evt, drv_allow_buffered_frames,
         TP_ARGS(local, sta, tids, num_frames, reason, more_data)
 );
 
+TRACE_EVENT(drv_get_rssi,
+        TP_PROTO(struct ieee80211_local *local, struct ieee80211_sta *sta,
+                 s8 rssi, int ret),
+
+        TP_ARGS(local, sta, rssi, ret),
+
+        TP_STRUCT__entry(
+                LOCAL_ENTRY
+                STA_ENTRY
+                __field(s8, rssi)
+                __field(int, ret)
+        ),
+
+        TP_fast_assign(
+                LOCAL_ASSIGN;
+                STA_ASSIGN;
+                __entry->rssi = rssi;
+                __entry->ret = ret;
+        ),
+
+        TP_printk(
+                LOCAL_PR_FMT STA_PR_FMT " rssi:%d ret:%d",
+                LOCAL_PR_ARG, STA_PR_ARG, __entry->rssi, __entry->ret
+        )
+);
+
 /*
  * Tracing for API calls that drivers call.
  */