package/madwifi/patches/330-beaconcal.patch

   1 Index: madwifi-trunk-r3314/ath/if_ath.c
   2 ===================================================================
   3 --- madwifi-trunk-r3314.orig/ath/if_ath.c       2008-02-06 20:27:16.005587752 +0100
   4 +++ madwifi-trunk-r3314/ath/if_ath.c    2008-02-06 22:06:51.778996341 +0100
   5 @@ -395,6 +395,7 @@
   6  static int maxvaps = -1;
   7  static int outdoor = -1;
   8  static int xchanmode = -1;
   9 +static int beacon_cal = 1;
  10
  11  static const char *hal_status_desc[] = {
  12         "No error",
  13 @@ -420,6 +421,7 @@
  14  };
  15
  16  #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,52))
  17 +MODULE_PARM(beacon_cal, "i");
  18  MODULE_PARM(countrycode, "i");
  19  MODULE_PARM(maxvaps, "i");
  20  MODULE_PARM(outdoor, "i");
  21 @@ -432,6 +434,7 @@
  22  MODULE_PARM(ratectl, "s");
  23  #else
  24  #include <linux/moduleparam.h>
  25 +module_param(beacon_cal, int, 0600);
  26  module_param(countrycode, int, 0600);
  27  module_param(maxvaps, int, 0600);
  28  module_param(outdoor, int, 0600);
  29 @@ -2594,7 +2597,8 @@
  30                 }
  31                 if (!sc->sc_invalid) {
  32                         del_timer_sync(&sc->sc_dfs_cac_timer);
  33 -                       del_timer_sync(&sc->sc_cal_ch);
  34 +                       if (!sc->sc_beacon_cal)
  35 +                               del_timer_sync(&sc->sc_cal_ch);
  36                 }
  37                 ath_draintxq(sc);
  38                 if (!sc->sc_invalid) {
  39 @@ -2611,6 +2615,20 @@
  40         return 0;
  41  }
  42
  43 +static void ath_set_beacon_cal(struct ath_softc *sc, int val)
  44 +{
  45 +       if (sc->sc_beacon_cal == !!val)
  46 +               return;
  47 +
  48 +       if (val) {
  49 +               del_timer_sync(&sc->sc_cal_ch);
  50 +       } else {
  51 +               sc->sc_cal_ch.expires = jiffies + (ath_calinterval * HZ);
  52 +               add_timer(&sc->sc_cal_ch);
  53 +       }
  54 +       sc->sc_beacon_cal = !!val && beacon_cal;
  55 +}
  56 +
  57  /*
  58   * Stop the device, grabbing the top-level lock to protect
  59   * against concurrent entry through ath_init (which can happen
  60 @@ -5141,6 +5159,8 @@
  61                         "Invoking ath_hal_txstart with sc_bhalq: %d\n",
  62                         sc->sc_bhalq);
  63                 ath_hal_txstart(ah, sc->sc_bhalq);
  64 +               if (sc->sc_beacon_cal && (jiffies > sc->sc_lastcal + (ath_calinterval * HZ)))
  65 +                       ath_calibrate((unsigned long) sc->sc_dev);
  66
  67                 sc->sc_stats.ast_be_xmit++;             /* XXX per-VAP? */
  68         }
  69 @@ -5390,6 +5410,7 @@
  70                 ath_hal_beacontimers(ah, &bs);
  71                 sc->sc_imask |= HAL_INT_BMISS;
  72                 ath_hal_intrset(ah, sc->sc_imask);
  73 +               ath_set_beacon_cal(sc, 0);
  74         } else {
  75                 ath_hal_intrset(ah, 0);
  76                 if (reset_tsf)
  77 @@ -5401,8 +5422,11 @@
  78                          */
  79                         intval |= HAL_BEACON_ENA;
  80                         sc->sc_imask |= HAL_INT_SWBA;
  81 +                       ath_set_beacon_cal(sc, 1);
  82                         ath_beaconq_config(sc);
  83 -               }
  84 +               } else
  85 +                       ath_set_beacon_cal(sc, 0);
  86 +
  87  #ifdef ATH_SUPERG_DYNTURBO
  88                 ath_beacon_dturbo_config(vap, intval &
  89                                 ~(HAL_BEACON_RESET_TSF | HAL_BEACON_ENA));
  90 @@ -8864,6 +8888,9 @@
  91                         /* Enter DFS wait period */
  92                         mod_timer(&sc->sc_dfs_cac_timer,
  93                                 jiffies + (sc->sc_dfs_cac_period * HZ));
  94 +
  95 +                       /* This is a good time to start a calibration */
  96 +                       ath_set_beacon_cal(sc, 1);
  97                 }
  98                 /*
  99                  * re configure beacons when it is a turbo mode switch.
 100 @@ -8973,8 +9000,11 @@
 101                 sc->sc_curchan.channel, sc->sc_curchan.channelFlags,
 102                 isIQdone ? "done" : "not done");
 103
 104 -       sc->sc_cal_ch.expires = jiffies + (ath_calinterval * HZ);
 105 -       add_timer(&sc->sc_cal_ch);
 106 +       sc->sc_lastcal = jiffies;
 107 +       if (!sc->sc_beacon_cal) {
 108 +               sc->sc_cal_ch.expires = jiffies + (ath_calinterval * HZ);
 109 +               add_timer(&sc->sc_cal_ch);
 110 +       }
 111  }
 112
 113  static void
 114 @@ -9081,7 +9111,8 @@
 115                 ieee80211_state_name[vap->iv_state],
 116                 ieee80211_state_name[nstate]);
 117
 118 -       del_timer(&sc->sc_cal_ch);              /* periodic calibration timer */
 119 +       if (!sc->sc_beacon_cal)
 120 +               del_timer(&sc->sc_cal_ch);              /* periodic calibration timer */
 121
 122         ath_hal_setledstate(ah, leds[nstate]);  /* set LED */
 123         netif_stop_queue(dev);                  /* before we do anything else */
 124 @@ -9306,7 +9337,8 @@
 125                                 "VAP -> DFSWAIT_PENDING \n");
 126                         /* start calibration timer with a really small value
 127                          * 1/10 sec */
 128 -                       mod_timer(&sc->sc_cal_ch, jiffies + (HZ/10));
 129 +                       if (!sc->sc_beacon_cal)
 130 +                               mod_timer(&sc->sc_cal_ch, jiffies + (HZ/10));
 131                         /* wake the receiver */
 132                         netif_wake_queue(dev);
 133                         /* don't do the other usual stuff... */
 134 @@ -9349,7 +9381,7 @@
 135         error = avp->av_newstate(vap, nstate, arg);
 136
 137         /* Finally, start any timers. */
 138 -       if (nstate == IEEE80211_S_RUN) {
 139 +       if (nstate == IEEE80211_S_RUN && !sc->sc_beacon_cal) {
 140                 /* start periodic recalibration timer */
 141                 mod_timer(&sc->sc_cal_ch, jiffies + (ath_calinterval * HZ));
 142         }
 143 Index: madwifi-trunk-r3314/ath/if_athvar.h
 144 ===================================================================
 145 --- madwifi-trunk-r3314.orig/ath/if_athvar.h    2008-02-06 20:27:08.969186784 +0100
 146 +++ madwifi-trunk-r3314/ath/if_athvar.h 2008-02-06 20:27:24.670081522 +0100
 147 @@ -778,6 +778,8 @@
 148         struct ieee80211vap **sc_bslot;         /* beacon xmit slots */
 149         int sc_bnext;                           /* next slot for beacon xmit */
 150
 151 +       int sc_beacon_cal;                      /* use beacon timer for calibration */
 152 +       u_int64_t sc_lastcal;                   /* last time the calibration was performed */
 153         struct timer_list sc_cal_ch;            /* calibration timer */
 154         HAL_NODE_STATS sc_halstats;             /* station-mode rssi stats */
 155