madwifi: add sysctl for turning the radio silent

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19376 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/madwifi/patches/456-rfsilent.patch b/package/madwifi/patches/456-rfsilent.patch
new file mode 100644 (file)
index 0000000..21031e7
--- /dev/null
+++ b/package/madwifi/patches/456-rfsilent.patch
@@ -0,0 +1,85 @@
+--- 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 */
+