mac80211/cfg80211: move iwrange handler to cfg80211
Johannes Berg [Wed, 18 Feb 2009 18:32:08 +0000 (19:32 +0100)]
The previous patch made cfg80211 generally aware of the signal
type a given hardware will give, so now it can implement
SIOCGIWRANGE itself, removing more wext stuff from mac80211.
Might need to be a little more parametrized once we have
more hardware using cfg80211 and new hardware capabilities.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

include/net/cfg80211.h
net/mac80211/wext.c
net/wireless/wext-compat.c

index e031274..43ac90d 100644 (file)
@@ -765,6 +765,9 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 int cfg80211_wext_giwscan(struct net_device *dev,
                          struct iw_request_info *info,
                          struct iw_point *data, char *extra);
+int cfg80211_wext_giwrange(struct net_device *dev,
+                          struct iw_request_info *info,
+                          struct iw_point *data, char *extra);
 
 /**
  * cfg80211_scan_done - notify that scan finished
index a8d4b61..f6924fc 100644 (file)
@@ -144,124 +144,6 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
        return -EOPNOTSUPP;
 }
 
-static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local)
-{
-       u8 wstats_flags = 0;
-
-       wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
-                                          IEEE80211_HW_SIGNAL_DBM) ?
-                               IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
-       wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
-                               IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
-       if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
-               wstats_flags |= IW_QUAL_DBM;
-
-       return wstats_flags;
-}
-
-static int ieee80211_ioctl_giwrange(struct net_device *dev,
-                                struct iw_request_info *info,
-                                struct iw_point *data, char *extra)
-{
-       struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-       struct iw_range *range = (struct iw_range *) extra;
-       enum ieee80211_band band;
-       int c = 0;
-
-       data->length = sizeof(struct iw_range);
-       memset(range, 0, sizeof(struct iw_range));
-
-       range->we_version_compiled = WIRELESS_EXT;
-       range->we_version_source = 21;
-       range->retry_capa = IW_RETRY_LIMIT;
-       range->retry_flags = IW_RETRY_LIMIT;
-       range->min_retry = 0;
-       range->max_retry = 255;
-       range->min_rts = 0;
-       range->max_rts = 2347;
-       range->min_frag = 256;
-       range->max_frag = 2346;
-
-       range->encoding_size[0] = 5;
-       range->encoding_size[1] = 13;
-       range->num_encoding_sizes = 2;
-       range->max_encoding_tokens = NUM_DEFAULT_KEYS;
-
-       /* cfg80211 requires this, and enforces 0..100 */
-       if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
-               range->max_qual.level = 100;
-       else if  (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
-               range->max_qual.level = -110;
-       else
-               range->max_qual.level = 0;
-
-       if (local->hw.flags & IEEE80211_HW_NOISE_DBM)
-               range->max_qual.noise = -110;
-       else
-               range->max_qual.noise = 0;
-
-       range->max_qual.updated = ieee80211_get_wstats_flags(local);
-
-       if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
-               /*
-                * cfg80211 assumes -110 to -40 dBm and clamps to that range
-                * for qual.qual, so tell userspace this is what we give it
-                * but take into account that we have to start from 0.
-                */
-               range->max_qual.qual = 70;
-               range->avg_qual.qual = 35;
-       } else {
-               /*
-                * cfg80211 just uses the level value for qual too, and it
-                * requires the level value to be 0 .. 100.
-                */
-               range->max_qual.qual = 100;
-               range->avg_qual.qual = 50;
-       }
-       /* not always true but better than nothing */
-       range->avg_qual.level = range->max_qual.level / 2;
-       range->avg_qual.noise = range->max_qual.noise / 2;
-       range->avg_qual.updated = ieee80211_get_wstats_flags(local);
-
-       range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
-                         IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
-
-
-       for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
-               int i;
-               struct ieee80211_supported_band *sband;
-
-               sband = local->hw.wiphy->bands[band];
-
-               if (!sband)
-                       continue;
-
-               for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
-                       struct ieee80211_channel *chan = &sband->channels[i];
-
-                       if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
-                               range->freq[c].i =
-                                       ieee80211_frequency_to_channel(
-                                               chan->center_freq);
-                               range->freq[c].m = chan->center_freq;
-                               range->freq[c].e = 6;
-                               c++;
-                       }
-               }
-       }
-       range->num_channels = c;
-       range->num_frequency = c;
-
-       IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
-       IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
-       IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
-
-       range->scan_capa |= IW_SCAN_CAPA_ESSID;
-
-       return 0;
-}
-
-
 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
                                   struct iw_request_info *info,
                                   struct iw_freq *freq, char *extra)
@@ -1004,6 +886,21 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
        return ret;
 }
 
+static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local)
+{
+       u8 wstats_flags = 0;
+
+       wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
+                                          IEEE80211_HW_SIGNAL_DBM) ?
+                               IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
+       wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
+                               IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
+       if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+               wstats_flags |= IW_QUAL_DBM;
+
+       return wstats_flags;
+}
+
 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
 {
@@ -1149,7 +1046,7 @@ static const iw_handler ieee80211_handler[] =
        (iw_handler) NULL,                              /* SIOCSIWSENS */
        (iw_handler) NULL,                              /* SIOCGIWSENS */
        (iw_handler) NULL /* not used */,               /* SIOCSIWRANGE */
-       (iw_handler) ieee80211_ioctl_giwrange,          /* SIOCGIWRANGE */
+       (iw_handler) cfg80211_wext_giwrange,            /* SIOCGIWRANGE */
        (iw_handler) NULL /* not used */,               /* SIOCSIWPRIV */
        (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
        (iw_handler) NULL /* not used */,               /* SIOCSIWSTATS */
index 58e489f..b84a9b4 100644 (file)
@@ -137,3 +137,100 @@ int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
        return 0;
 }
 EXPORT_SYMBOL(cfg80211_wext_giwmode);
+
+
+int cfg80211_wext_giwrange(struct net_device *dev,
+                          struct iw_request_info *info,
+                          struct iw_point *data, char *extra)
+{
+       struct wireless_dev *wdev = dev->ieee80211_ptr;
+       struct iw_range *range = (struct iw_range *) extra;
+       enum ieee80211_band band;
+       int c = 0;
+
+       if (!wdev)
+               return -EOPNOTSUPP;
+
+       data->length = sizeof(struct iw_range);
+       memset(range, 0, sizeof(struct iw_range));
+
+       range->we_version_compiled = WIRELESS_EXT;
+       range->we_version_source = 21;
+       range->retry_capa = IW_RETRY_LIMIT;
+       range->retry_flags = IW_RETRY_LIMIT;
+       range->min_retry = 0;
+       range->max_retry = 255;
+       range->min_rts = 0;
+       range->max_rts = 2347;
+       range->min_frag = 256;
+       range->max_frag = 2346;
+
+       range->encoding_size[0] = 5;
+       range->encoding_size[1] = 13;
+       range->num_encoding_sizes = 2;
+       range->max_encoding_tokens = 4;
+
+       range->max_qual.updated = IW_QUAL_NOISE_INVALID;
+
+       switch (wdev->wiphy->signal_type) {
+       case CFG80211_SIGNAL_TYPE_NONE:
+               break;
+       case CFG80211_SIGNAL_TYPE_MBM:
+               range->max_qual.level = -110;
+               range->max_qual.qual = 70;
+               range->avg_qual.qual = 35;
+               range->max_qual.updated |= IW_QUAL_DBM;
+               range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
+               range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
+               break;
+       case CFG80211_SIGNAL_TYPE_UNSPEC:
+               range->max_qual.level = 100;
+               range->max_qual.qual = 100;
+               range->avg_qual.qual = 50;
+               range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
+               range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
+               break;
+       }
+
+       range->avg_qual.level = range->max_qual.level / 2;
+       range->avg_qual.noise = range->max_qual.noise / 2;
+       range->avg_qual.updated = range->max_qual.updated;
+
+       range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
+                         IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
+
+
+       for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
+               int i;
+               struct ieee80211_supported_band *sband;
+
+               sband = wdev->wiphy->bands[band];
+
+               if (!sband)
+                       continue;
+
+               for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
+                       struct ieee80211_channel *chan = &sband->channels[i];
+
+                       if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
+                               range->freq[c].i =
+                                       ieee80211_frequency_to_channel(
+                                               chan->center_freq);
+                               range->freq[c].m = chan->center_freq;
+                               range->freq[c].e = 6;
+                               c++;
+                       }
+               }
+       }
+       range->num_channels = c;
+       range->num_frequency = c;
+
+       IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
+       IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
+       IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
+
+       range->scan_capa |= IW_SCAN_CAPA_ESSID;
+
+       return 0;
+}
+EXPORT_SYMBOL(cfg80211_wext_giwrange);