target/linux/generic-2.6/patches/903-hostap_txpower.patch

   1 Index: linux-2.6.21.7/drivers/net/wireless/hostap/hostap_ap.c
   2 ===================================================================
   3 --- linux-2.6.21.7.orig/drivers/net/wireless/hostap/hostap_ap.c
   4 +++ linux-2.6.21.7/drivers/net/wireless/hostap/hostap_ap.c
   5 @@ -2346,13 +2346,13 @@ int prism2_ap_get_sta_qual(local_info_t
   6                 addr[count].sa_family = ARPHRD_ETHER;
   7                 memcpy(addr[count].sa_data, sta->addr, ETH_ALEN);
   8                 if (sta->last_rx_silence == 0)
   9 -                       qual[count].qual = sta->last_rx_signal < 27 ?
  10 -                               0 : (sta->last_rx_signal - 27) * 92 / 127;
  11 +                        qual[count].qual = (sta->last_rx_signal - 156) == 0 ?
  12 +                                0 : (sta->last_rx_signal - 156) * 92 / 64;
  13                 else
  14 -                       qual[count].qual = sta->last_rx_signal -
  15 -                               sta->last_rx_silence - 35;
  16 -               qual[count].level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal);
  17 -               qual[count].noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence);
  18 +                        qual[count].qual = (sta->last_rx_signal -
  19 +                                sta->last_rx_silence) * 92 / 64;
  20 +                qual[count].level = sta->last_rx_signal;
  21 +                qual[count].noise = sta->last_rx_silence;
  22                 qual[count].updated = sta->last_rx_updated;
  23
  24                 sta->last_rx_updated = IW_QUAL_DBM;
  25 @@ -2417,13 +2417,13 @@ int prism2_ap_translate_scan(struct net_
  26                 memset(&iwe, 0, sizeof(iwe));
  27                 iwe.cmd = IWEVQUAL;
  28                 if (sta->last_rx_silence == 0)
  29 -                       iwe.u.qual.qual = sta->last_rx_signal < 27 ?
  30 -                               0 : (sta->last_rx_signal - 27) * 92 / 127;
  31 +                       iwe.u.qual.qual = (sta->last_rx_signal -156) == 0 ?
  32 +                               0 : (sta->last_rx_signal - 156) * 92 / 64;
  33                 else
  34 -                       iwe.u.qual.qual = sta->last_rx_signal -
  35 -                               sta->last_rx_silence - 35;
  36 -               iwe.u.qual.level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal);
  37 -               iwe.u.qual.noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence);
  38 +                        iwe.u.qual.qual = (sta->last_rx_signal -
  39 +                                sta->last_rx_silence) * 92 / 64;
  40 +                iwe.u.qual.level = sta->last_rx_signal;
  41 +                iwe.u.qual.noise = sta->last_rx_silence;
  42                 iwe.u.qual.updated = sta->last_rx_updated;
  43                 iwe.len = IW_EV_QUAL_LEN;
  44                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
  45 Index: linux-2.6.21.7/drivers/net/wireless/hostap/hostap_config.h
  46 ===================================================================
  47 --- linux-2.6.21.7.orig/drivers/net/wireless/hostap/hostap_config.h
  48 +++ linux-2.6.21.7/drivers/net/wireless/hostap/hostap_config.h
  49 @@ -47,4 +47,9 @@
  50   */
  51  /* #define PRISM2_NO_STATION_MODES */
  52
  53 +/* Enable TX power Setting functions
  54 + * (min att = -128 , max att =  127)
  55 + */
  56 +#define RAW_TXPOWER_SETTING
  57 +
  58  #endif /* HOSTAP_CONFIG_H */
  59 Index: linux-2.6.21.7/drivers/net/wireless/hostap/hostap.h
  60 ===================================================================
  61 --- linux-2.6.21.7.orig/drivers/net/wireless/hostap/hostap.h
  62 +++ linux-2.6.21.7/drivers/net/wireless/hostap/hostap.h
  63 @@ -90,6 +90,7 @@ extern const struct iw_handler_def hosta
  64  extern const struct ethtool_ops prism2_ethtool_ops;
  65
  66  int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
  67 +int hostap_restore_power(struct net_device *dev);
  68
  69
  70  #endif /* HOSTAP_H */
  71 Index: linux-2.6.21.7/drivers/net/wireless/hostap/hostap_hw.c
  72 ===================================================================
  73 --- linux-2.6.21.7.orig/drivers/net/wireless/hostap/hostap_hw.c
  74 +++ linux-2.6.21.7/drivers/net/wireless/hostap/hostap_hw.c
  75 @@ -933,6 +933,7 @@ static int hfa384x_set_rid(struct net_de
  76                         prism2_hw_reset(dev);
  77         }
  78
  79 +       hostap_restore_power(dev);
  80         return res;
  81  }
  82
  83 Index: linux-2.6.21.7/drivers/net/wireless/hostap/hostap_info.c
  84 ===================================================================
  85 --- linux-2.6.21.7.orig/drivers/net/wireless/hostap/hostap_info.c
  86 +++ linux-2.6.21.7/drivers/net/wireless/hostap/hostap_info.c
  87 @@ -428,6 +428,11 @@ static void handle_info_queue_linkstatus
  88         }
  89
  90         /* Get BSSID if we have a valid AP address */
  91 +
  92 +       if ( val == HFA384X_LINKSTATUS_CONNECTED ||
  93 +            val == HFA384X_LINKSTATUS_DISCONNECTED )
  94 +                       hostap_restore_power(local->dev);
  95 +
  96         if (connected) {
  97                 netif_carrier_on(local->dev);
  98                 netif_carrier_on(local->ddev);
  99 Index: linux-2.6.21.7/drivers/net/wireless/hostap/hostap_ioctl.c
 100 ===================================================================
 101 --- linux-2.6.21.7.orig/drivers/net/wireless/hostap/hostap_ioctl.c
 102 +++ linux-2.6.21.7/drivers/net/wireless/hostap/hostap_ioctl.c
 103 @@ -1504,23 +1504,20 @@ static int prism2_txpower_hfa386x_to_dBm
 104                 val = 255;
 105
 106         tmp = val;
 107 -       tmp >>= 2;
 108
 109 -       return -12 - tmp;
 110 +       return tmp;
 111  }
 112
 113  static u16 prism2_txpower_dBm_to_hfa386x(int val)
 114  {
 115         signed char tmp;
 116
 117 -       if (val > 20)
 118 -               return 128;
 119 -       else if (val < -43)
 120 +       if (val > 127)
 121                 return 127;
 122 +       else if (val < -128)
 123 +               return 128;
 124
 125         tmp = val;
 126 -       tmp = -12 - tmp;
 127 -       tmp <<= 2;
 128
 129         return (unsigned char) tmp;
 130  }
 131 @@ -4080,3 +4077,35 @@ int hostap_ioctl(struct net_device *dev,
 132
 133         return ret;
 134  }
 135 +
 136 +/* BUG FIX: Restore power setting value when lost due to F/W bug */
 137 +
 138 +int hostap_restore_power(struct net_device *dev)
 139 +{
 140 +        struct hostap_interface *iface = dev->priv;
 141 +       local_info_t *local = iface->local;
 142 +
 143 +       u16 val;
 144 +       int ret = 0;
 145 +
 146 +       if (local->txpower_type == PRISM2_TXPOWER_OFF) {
 147 +                       val = 0xff; /* use all standby and sleep modes */
 148 +                       ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
 149 +                                              HFA386X_CR_A_D_TEST_MODES2,
 150 +                                              &val, NULL);
 151 +       }
 152 +
 153 +#ifdef RAW_TXPOWER_SETTING
 154 +       if (local->txpower_type == PRISM2_TXPOWER_FIXED) {
 155 +               val = HFA384X_TEST_CFG_BIT_ALC;
 156 +               local->func->cmd(dev, HFA384X_CMDCODE_TEST |
 157 +                                (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL);
 158 +               val = prism2_txpower_dBm_to_hfa386x(local->txpower);
 159 +               ret = (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
 160 +                            HFA386X_CR_MANUAL_TX_POWER, &val, NULL));
 161 +       }
 162 +#endif /* RAW_TXPOWER_SETTING */
 163 +       return (ret ? -EOPNOTSUPP : 0);
 164 +}
 165 +
 166 +EXPORT_SYMBOL(hostap_restore_power);