radar_silent_chirp.patch

gehe zur Dokumentation dieser Datei

Deactivate messages "not enough packets for chirp".

Author: Kai-Uwe

Index: on_firmware/openwrt/package/kernel/mac80211/patches/ath/495_silent_chirp.patch
===================================================================
--- /dev/null
+++ on_firmware/openwrt/package/kernel/mac80211/patches/ath/495_silent_chirp.patch
@@ -0,0 +1,75 @@
+--- a/drivers/net/wireless/ath/ath9k/dfs.c
++++ b/drivers/net/wireless/ath/ath9k/dfs.c
+@@ -112,16 +112,16 @@
+      if (num_fft_packets == 0)
+          return false;
+ 
+-     ath_dbg(common, DFS, "HT40: datalen=%d, num_fft_packets=%d\n",
+-         datalen, num_fft_packets);
++     //ath_dbg(common, DFS, "HT40: datalen=%d, num_fft_packets=%d\n",
++         //datalen, num_fft_packets);
+      if (num_fft_packets < FFT_NUM_SAMPLES) {
+-         ath_dbg(common, DFS, "not enough packets for chirp\n");
++         //ath_dbg(common, DFS, "not enough packets for chirp\n");
+          return false;
+      }
+      /* HW sometimes adds 2 garbage bytes in front of FFT samples */
+      if ((datalen % sizeof(*fft)) == 2) {
+          fft = (struct ath9k_dfs_fft_40 *) (data + 2);
+-         ath_dbg(common, DFS, "fixing datalen by 2\n");
++         //ath_dbg(common, DFS, "fixing datalen by 2\n");
+      }
+      if (IS_CHAN_HT40MINUS(ah->curchan))
+          swap(is_ctl, is_ext);
+@@ -134,18 +134,18 @@
+      int num_fft_packets = datalen / sizeof(*fft);
+      if (num_fft_packets == 0)
+          return false;
+-     ath_dbg(common, DFS, "HT20: datalen=%d, num_fft_packets=%d\n",
+-         datalen, num_fft_packets);
++     //ath_dbg(common, DFS, "HT20: datalen=%d, num_fft_packets=%d\n",
++         //datalen, num_fft_packets);
+      if (num_fft_packets < FFT_NUM_SAMPLES) {
+-         ath_dbg(common, DFS, "not enough packets for chirp\n");
++         //ath_dbg(common, DFS, "not enough packets for chirp\n");
+          return false;
+      }
+      /* in ht20, this is a 6-bit signed number => shift it to 0 */
+      for (i = 0; i < FFT_NUM_SAMPLES; i++)
+          max_bin[i] = fft_max_index(fft[i].lower_bins) ^ 0x20;
+  }
+- ath_dbg(common, DFS, "bin_max = [%d, %d, %d, %d]\n",
+-     max_bin[0], max_bin[1], max_bin[2], max_bin[3]);
++ //ath_dbg(common, DFS, "bin_max = [%d, %d, %d, %d]\n",
++     //max_bin[0], max_bin[1], max_bin[2], max_bin[3]);
+ 
+  /* Check for chirp attributes within specs
+   * a) delta of adjacent max_bins is within range
+@@ -158,21 +158,21 @@
+ 
+      /* ensure gradient is within valid range */
+      if (abs(delta) < BIN_DELTA_MIN || abs(delta) > BIN_DELTA_MAX) {
+-         ath_dbg(common, DFS, "CHIRP: invalid delta %d "
+-             "in sample %d\n", delta, i);
++         //ath_dbg(common, DFS, "CHIRP: invalid delta %d "
++             //"in sample %d\n", delta, i);
+          return false;
+      }
+      if (i == 0)
+          goto done;
+      ddelta = delta - prev_delta;
+      if (abs(ddelta) > MAX_DIFF) {
+-         ath_dbg(common, DFS, "CHIRP: ddelta %d too high\n",
+-             ddelta);
++         //ath_dbg(common, DFS, "CHIRP: ddelta %d too high\n",
++             //ddelta);
+          return false;
+      }
+ done:
+-     ath_dbg(common, DFS, "CHIRP - %d: delta=%d, ddelta=%d\n",
+-         i, delta, ddelta);
++     //ath_dbg(common, DFS, "CHIRP - %d: delta=%d, ddelta=%d\n",
++         //i, delta, ddelta);
+      prev_delta = delta;
+  }
+  return true;