drivers/net/wireless/orinoco/cfg.c

   1 /* cfg80211 support
   2  *
   3  * See copyright notice in main.c
   4  */
   5 #include <linux/ieee80211.h>
   6 #include <net/cfg80211.h>
   7 #include "hw.h"
   8 #include "main.h"
   9 #include "orinoco.h"
  10
  11 #include "cfg.h"
  12
  13 /* Supported bitrates. Must agree with hw.c */
  14 static struct ieee80211_rate orinoco_rates[] = {
  15         { .bitrate = 10 },
  16         { .bitrate = 20 },
  17         { .bitrate = 55 },
  18         { .bitrate = 110 },
  19 };
  20
  21 static const void * const orinoco_wiphy_privid = &orinoco_wiphy_privid;
  22
  23 /* Called after orinoco_private is allocated. */
  24 void orinoco_wiphy_init(struct wiphy *wiphy)
  25 {
  26         struct orinoco_private *priv = wiphy_priv(wiphy);
  27
  28         wiphy->privid = orinoco_wiphy_privid;
  29
  30         set_wiphy_dev(wiphy, priv->dev);
  31 }
  32
  33 /* Called after firmware is initialised */
  34 int orinoco_wiphy_register(struct wiphy *wiphy)
  35 {
  36         struct orinoco_private *priv = wiphy_priv(wiphy);
  37         int i, channels = 0;
  38
  39         if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
  40                 wiphy->max_scan_ssids = 1;
  41         else
  42                 wiphy->max_scan_ssids = 0;
  43
  44         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
  45
  46         /* TODO: should we set if we only have demo ad-hoc?
  47          *       (priv->has_port3)
  48          */
  49         if (priv->has_ibss)
  50                 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
  51
  52         if (!priv->broken_monitor || force_monitor)
  53                 wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
  54
  55         priv->band.bitrates = orinoco_rates;
  56         priv->band.n_bitrates = ARRAY_SIZE(orinoco_rates);
  57
  58         /* Only support channels allowed by the card EEPROM */
  59         for (i = 0; i < NUM_CHANNELS; i++) {
  60                 if (priv->channel_mask & (1 << i)) {
  61                         priv->channels[i].center_freq =
  62                                 ieee80211_dsss_chan_to_freq(i+1);
  63                         channels++;
  64                 }
  65         }
  66         priv->band.channels = priv->channels;
  67         priv->band.n_channels = channels;
  68
  69         wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
  70         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
  71
  72         i = 0;
  73         if (priv->has_wep) {
  74                 priv->cipher_suites[i] = WLAN_CIPHER_SUITE_WEP40;
  75                 i++;
  76
  77                 if (priv->has_big_wep) {
  78                         priv->cipher_suites[i] = WLAN_CIPHER_SUITE_WEP104;
  79                         i++;
  80                 }
  81         }
  82         if (priv->has_wpa) {
  83                 priv->cipher_suites[i] = WLAN_CIPHER_SUITE_TKIP;
  84                 i++;
  85         }
  86         wiphy->cipher_suites = priv->cipher_suites;
  87         wiphy->n_cipher_suites = i;
  88
  89         wiphy->rts_threshold = priv->rts_thresh;
  90         if (!priv->has_mwo)
  91                 wiphy->frag_threshold = priv->frag_thresh;
  92
  93         return wiphy_register(wiphy);
  94 }
  95
  96 static int orinoco_change_vif(struct wiphy *wiphy, struct net_device *dev,
  97                               enum nl80211_iftype type, u32 *flags,
  98                               struct vif_params *params)
  99 {
 100         struct orinoco_private *priv = wiphy_priv(wiphy);
 101         int err = 0;
 102         unsigned long lock;
 103
 104         if (orinoco_lock(priv, &lock) != 0)
 105                 return -EBUSY;
 106
 107         switch (type) {
 108         case NL80211_IFTYPE_ADHOC:
 109                 if (!priv->has_ibss && !priv->has_port3)
 110                         err = -EINVAL;
 111                 break;
 112
 113         case NL80211_IFTYPE_STATION:
 114                 break;
 115
 116         case NL80211_IFTYPE_MONITOR:
 117                 if (priv->broken_monitor && !force_monitor) {
 118                         printk(KERN_WARNING "%s: Monitor mode support is "
 119                                "buggy in this firmware, not enabling\n",
 120                                wiphy_name(wiphy));
 121                         err = -EINVAL;
 122                 }
 123                 break;
 124
 125         default:
 126                 err = -EINVAL;
 127         }
 128
 129         if (!err) {
 130                 priv->iw_mode = type;
 131                 set_port_type(priv);
 132                 err = orinoco_commit(priv);
 133         }
 134
 135         orinoco_unlock(priv, &lock);
 136
 137         return err;
 138 }
 139
 140 static int orinoco_scan(struct wiphy *wiphy, struct net_device *dev,
 141                         struct cfg80211_scan_request *request)
 142 {
 143         struct orinoco_private *priv = wiphy_priv(wiphy);
 144         int err;
 145
 146         if (!request)
 147                 return -EINVAL;
 148
 149         if (priv->scan_request && priv->scan_request != request)
 150                 return -EBUSY;
 151
 152         priv->scan_request = request;
 153
 154         err = orinoco_hw_trigger_scan(priv, request->ssids);
 155
 156         return err;
 157 }
 158
 159 static int orinoco_set_channel(struct wiphy *wiphy,
 160                         struct ieee80211_channel *chan,
 161                         enum nl80211_channel_type channel_type)
 162 {
 163         struct orinoco_private *priv = wiphy_priv(wiphy);
 164         int err = 0;
 165         unsigned long flags;
 166         int channel;
 167
 168         if (!chan)
 169                 return -EINVAL;
 170
 171         if (channel_type != NL80211_CHAN_NO_HT)
 172                 return -EINVAL;
 173
 174         if (chan->band != IEEE80211_BAND_2GHZ)
 175                 return -EINVAL;
 176
 177         channel = ieee80211_freq_to_dsss_chan(chan->center_freq);
 178
 179         if ((channel < 1) || (channel > NUM_CHANNELS) ||
 180              !(priv->channel_mask & (1 << (channel-1))))
 181                 return -EINVAL;
 182
 183         if (orinoco_lock(priv, &flags) != 0)
 184                 return -EBUSY;
 185
 186         priv->channel = channel;
 187         if (priv->iw_mode == NL80211_IFTYPE_MONITOR) {
 188                 /* Fast channel change - no commit if successful */
 189                 hermes_t *hw = &priv->hw;
 190                 err = hw->ops->cmd_wait(hw, HERMES_CMD_TEST |
 191                                             HERMES_TEST_SET_CHANNEL,
 192                                         channel, NULL);
 193         }
 194         orinoco_unlock(priv, &flags);
 195
 196         return err;
 197 }
 198
 199 const struct cfg80211_ops orinoco_cfg_ops = {
 200         .change_virtual_intf = orinoco_change_vif,
 201         .set_channel = orinoco_set_channel,
 202         .scan = orinoco_scan,
 203 };