package/madwifi/patches/306-bstuck_calibrate.patch

   1 Index: madwifi-ng-r2568-20070710/ath/if_ath.c
   2 ===================================================================
   3 --- madwifi-ng-r2568-20070710.orig/ath/if_ath.c 2007-07-23 01:48:45.690583928 +0200
   4 +++ madwifi-ng-r2568-20070710/ath/if_ath.c      2007-07-23 01:48:46.026603077 +0200
   5 @@ -153,6 +153,7 @@
   6  static void ath_turbo_switch_mode(unsigned long);
   7  static int ath_check_beacon_done(struct ath_softc *);
   8  #endif
   9 +static void ath_do_calibrate(struct net_device *);
  10  static void ath_beacon_send(struct ath_softc *, int *);
  11  static void ath_beacon_start_adhoc(struct ath_softc *, struct ieee80211vap *);
  12  static void ath_beacon_return(struct ath_softc *, struct ath_buf *);
  13 @@ -4175,7 +4176,7 @@
  14                 DPRINTF(sc, ATH_DEBUG_BEACON_PROC,
  15                         "%s: missed %u consecutive beacons\n",
  16                         __func__, sc->sc_bmisscount);
  17 -               if (sc->sc_bmisscount > BSTUCK_THRESH)
  18 +               if (sc->sc_bmisscount > BSTUCK_CALIBR_THR)
  19                         ATH_SCHEDULE_TQUEUE(&sc->sc_bstucktq, needmark);
  20                 return;
  21         }
  22 @@ -4314,8 +4315,17 @@
  23          *     check will be true, in which case return
  24          *     without resetting the driver.
  25          */
  26 -       if (sc->sc_bmisscount <= BSTUCK_THRESH)
  27 +       if (sc->sc_bmisscount <= BSTUCK_CALIBR_THR)
  28                 return;
  29 +
  30 +       if (sc->sc_bmisscount <= BSTUCK_RESET_THR) {
  31 +               ATH_LOCK(sc);
  32 +               ath_do_calibrate(dev);
  33 +               mod_timer(&sc->sc_cal_ch, jiffies + (ath_calinterval * HZ));
  34 +               ATH_UNLOCK(sc);
  35 +               return;
  36 +       }
  37 +
  38         printk("%s: stuck beacon; resetting (bmiss count %u)\n",
  39                 DEV_NAME(dev), sc->sc_bmisscount);
  40         ath_reset(dev);
  41 @@ -8029,17 +8039,13 @@
  42   * Periodically recalibrate the PHY to account
  43   * for temperature/environment changes.
  44   */
  45 -static void
  46 -ath_calibrate(unsigned long arg)
  47 +static void ath_do_calibrate(struct net_device *dev)
  48  {
  49 -       struct net_device *dev = (struct net_device *) arg;
  50         struct ath_softc *sc = dev->priv;
  51         struct ath_hal *ah = sc->sc_ah;
  52 -       /* u_int32_t nchans; */
  53         HAL_BOOL isIQdone = AH_FALSE;
  54
  55         sc->sc_stats.ast_per_cal++;
  56 -
  57         DPRINTF(sc, ATH_DEBUG_CALIBRATE, "%s: channel %u/%x\n",
  58                 __func__, sc->sc_curchan.channel, sc->sc_curchan.channelFlags);
  59
  60 @@ -8057,15 +8063,26 @@
  61                         __func__, sc->sc_curchan.channel);
  62                 sc->sc_stats.ast_per_calfail++;
  63         }
  64 -
  65 -       ath_hal_process_noisefloor(ah);
  66         if (isIQdone == AH_TRUE)
  67                 ath_calinterval = ATH_LONG_CALINTERVAL;
  68         else
  69                 ath_calinterval = ATH_SHORT_CALINTERVAL;
  70 +}
  71 +
  72 +static void
  73 +ath_calibrate(unsigned long arg)
  74 +{
  75 +       struct net_device *dev = (struct net_device *) arg;
  76 +       struct ath_softc *sc = dev->priv;
  77 +       struct ath_hal *ah = sc->sc_ah;
  78 +
  79 +       ATH_LOCK(sc);
  80 +       ath_do_calibrate(dev);
  81 +       ath_hal_process_noisefloor(ah);
  82
  83         sc->sc_cal_ch.expires = jiffies + (ath_calinterval * HZ);
  84         add_timer(&sc->sc_cal_ch);
  85 +       ATH_UNLOCK(sc);
  86  }
  87
  88  static void
  89 Index: madwifi-ng-r2568-20070710/ath/if_athvar.h
  90 ===================================================================
  91 --- madwifi-ng-r2568-20070710.orig/ath/if_athvar.h      2007-07-23 01:48:45.406567742 +0200
  92 +++ madwifi-ng-r2568-20070710/ath/if_athvar.h   2007-07-23 01:48:46.026603077 +0200
  93 @@ -538,7 +538,8 @@
  94   */
  95  #define ATH_TXQ_MOVE_Q(_tqs,_tqd)  ATH_TXQ_MOVE_MCASTQ(_tqs,_tqd)
  96
  97 -#define        BSTUCK_THRESH   10      /* # of stuck beacons before resetting NB: this is a guess*/
  98 +#define        BSTUCK_CALIBR_THR       3       /* # of stuck beacons before restarting calibration */
  99 +#define        BSTUCK_RESET_THR        10      /* # of stuck beacons before resetting NB: this is a guess*/
 100
 101  struct ath_softc {
 102         struct ieee80211com sc_ic;              /* NB: must be first */