--- a/ath/if_ath.c
+++ b/ath/if_ath.c
@@ -2996,6 +2996,19 @@ ath_fetch_idle_time(struct ath_softc *sc
 #undef AR5K_RXCLEAR
 #undef AR5K_CYCLES
 
+static void
+ath_set_silent(struct ath_softc *sc)
+{
+	struct ath_hal *ah = sc->sc_ah;
+
+	if (!sc->sc_silent)
+		return;
+
+	del_timer_sync(&sc->sc_bcntimer);
+	ath_hal_intrset(ah, 0);
+	OS_REG_WRITE(ah, 0x8048, 0x60); /* set tx loopback and rx disable */
+}
+
 /*
  * Reset the hardware w/o losing operational state.  This is
  * basically a more efficient way of doing ath_stop, ath_init,
@@ -3073,6 +3086,7 @@ ath_reset(struct net_device *dev)
 		ath_grppoll_start(vap, sc->sc_xrpollcount);
 	}
 #endif
+	ath_set_silent(sc);
 	return 0;
 }
 
@@ -10972,6 +10986,7 @@ enum {
  * mirrored in /proc/sys.
  */
 enum {
+	ATH_SILENT,
 	ATH_SLOTTIME,
 	ATH_ACKTIMEOUT,
 	ATH_CTSTIMEOUT,
@@ -11294,6 +11309,13 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
 					sc->sc_ctstimeconf = 0;
 				ath_set_timing(sc);
 				break;
+			case ATH_SILENT:
+				sc->sc_silent = !!val;
+				if (val)
+					ath_set_silent(sc);
+				else
+					ath_reset(sc->sc_dev);
+				break;
 			case ATH_DISTANCE:
 				if (val > 0) {
 					sc->sc_coverage = ((val - 1) / 300) + 1;
@@ -11477,6 +11499,9 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
 		case ATH_CTSTIMEOUT:
 			val = ath_hal_getctstimeout(ah);
 			break;
+		case ATH_SILENT:
+			val = sc->sc_silent;
+			break;
 		case ATH_SOFTLED:
 			val = sc->sc_softled;
 			break;
@@ -11598,6 +11623,12 @@ static const ctl_table ath_sysctl_templa
 	  .extra2	= (void *)ATH_DISTANCE,
 	},
 	{ .ctl_name	= CTL_AUTO,
+	  .procname	= "silent",
+	  .mode		= 0644,
+	  .proc_handler	= ath_sysctl_halparam,
+	  .extra2	= (void *)ATH_SILENT,
+	},
+	{ .ctl_name	= CTL_AUTO,
 	  .procname	= "softled",
 	  .mode		= 0644,
 	  .proc_handler	= ath_sysctl_halparam,
--- a/ath/if_athvar.h
+++ b/ath/if_athvar.h
@@ -737,6 +737,7 @@ struct ath_softc {
 						 * 'channel availability check' indefinately,
 						 * reporting radar and interference detections.
 						 */
+	unsigned int	sc_silent:1;	/* Turn RF silent */
 	unsigned int sc_txcont_power; /* Continuous transmit power in 0.5dBm units */
 	unsigned int sc_txcont_rate;  /* Continuous transmit rate in Mbps */