radar_counter.patch

gehe zur Dokumentation dieser Datei

Author: Kai-Uwe
 
Index: on_firmware/openwrt/package/kernel/mac80211/patches/ath/496_radar_counter.patch
===================================================================
--- /dev/null
+++ on_firmware/openwrt/package/kernel/mac80211/patches/ath/496_radar_counter.patch
@@ -0,0 +1,45 @@
+--- a/drivers/net/wireless/ath/dfs_pattern_detector.c
++++ b/drivers/net/wireless/ath/dfs_pattern_detector.c
+@@ -131,6 +131,8 @@
+   &jp_radar_types,
+ };
+ 
++static int radar_found_counter = 0;
++
+ /**
+  * get_dfs_domain_radar_types() - get radar types for a given DFS domain
+  * @param domain DFS domain
+@@ -290,6 +292,15 @@
+       dpd_reset(dpd);
+   dpd->last_pulse_ts = event->ts;
+ 
++  /* Apply radar threshold according to ETSI EN 301893 V2.1.1, D2.
++   * Only signals stronger than -64 dBm (at 0 dBi) have to be detected. 
++   * To be safe we use a very conservative threshold of rssi 20.
++   */
++
++  if (20 > event->rssi) 
++      return false;
++
++
+   /* do type individual pattern matching */
+   for (i = 0; i < dpd->num_radar_types; i++) {
+       struct pri_detector *pd = cd->detectors[i];
+@@ -297,8 +308,15 @@
+       if (ps != NULL) {
+           if (rs != NULL)
+               memcpy(rs, pd->rs, sizeof(*rs));
+-          ath_dbg(dpd->common, DFS,
+-              "DFS: radar found on freq=%d: id=%d, pri=%d, "
++
++          if (radar_found_counter < 2) {
++              radar_found_counter++;
++              return false;
++          }
++          radar_found_counter = 0;
++
++
++          printk( "DFS: radar found on freq=%d: id=%d, pri=%d, "
+               "count=%d, count_false=%d\n",
+               event->freq, pd->rs->type_id,
+               ps->pri, ps->count, ps->count_falses);