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authorJussi Kivilinna <jussi.kivilinna@mbnet.fi>2009-08-28 13:28:03 +0300
committerJohn W. Linville <linville@tuxdriver.com>2009-08-28 14:40:59 -0400
commit8b89a2883be4b6bad8ac0c5928784febb2b34172 (patch)
treeb05da4e342dbab77e5d74315e94ac777850f9ea7 /drivers/net/wireless/rndis_wlan.c
parent84bf8400cee127be3b58a9d9b8cfa453dad999ab (diff)
rndis_wlan: add cfg80211 get_station
Add cfg80211 get_station and convert SIOCGIWRATE and get_wireless_stats to cfg80211. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rndis_wlan.c')
-rw-r--r--drivers/net/wireless/rndis_wlan.c118
1 files changed, 57 insertions, 61 deletions
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index 93b504bc2dc..061bfec14a9 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -444,17 +444,14 @@ struct rndis_wlan_private {
struct delayed_work scan_work;
struct work_struct work;
struct mutex command_lock;
- spinlock_t stats_lock;
unsigned long work_pending;
+ int last_qual;
struct ieee80211_supported_band band;
struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
- struct iw_statistics iwstats;
- struct iw_statistics privstats;
-
int caps;
int multicast_size;
@@ -472,6 +469,7 @@ struct rndis_wlan_private {
int radio_on;
int infra_mode;
bool connected;
+ u8 bssid[ETH_ALEN];
struct ndis_80211_ssid essid;
__le32 current_command_oid;
@@ -530,6 +528,9 @@ static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index);
+static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_info *sinfo);
+
static struct cfg80211_ops rndis_config_ops = {
.change_virtual_intf = rndis_change_virtual_intf,
.scan = rndis_scan,
@@ -544,6 +545,7 @@ static struct cfg80211_ops rndis_config_ops = {
.add_key = rndis_add_key,
.del_key = rndis_del_key,
.set_default_key = rndis_set_default_key,
+ .get_station = rndis_get_station,
};
static void *rndis_wiphy_privid = &rndis_wiphy_privid;
@@ -1931,6 +1933,7 @@ static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
devdbg(usbdev, "cfg80211.disconnect(%d)", reason_code);
priv->connected = false;
+ memset(priv->bssid, 0, ETH_ALEN);
return deauthenticate(usbdev);
}
@@ -2037,6 +2040,7 @@ static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
devdbg(usbdev, "cfg80211.leave_ibss()");
priv->connected = false;
+ memset(priv->bssid, 0, ETH_ALEN);
return deauthenticate(usbdev);
}
@@ -2114,6 +2118,43 @@ static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
return add_wep_key(usbdev, key.material, key.len, key_index);
}
+static void rndis_fill_station_info(struct usbnet *usbdev,
+ struct station_info *sinfo)
+{
+ __le32 linkspeed, rssi;
+ int ret, len;
+
+ memset(sinfo, 0, sizeof(*sinfo));
+
+ len = sizeof(linkspeed);
+ ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
+ if (ret == 0) {
+ sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
+ sinfo->filled |= STATION_INFO_TX_BITRATE;
+ }
+
+ len = sizeof(rssi);
+ ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
+ if (ret == 0) {
+ sinfo->signal = level_to_qual(le32_to_cpu(rssi));
+ sinfo->filled |= STATION_INFO_SIGNAL;
+ }
+}
+
+static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_info *sinfo)
+{
+ struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+ struct usbnet *usbdev = priv->usbdev;
+
+ if (compare_ether_addr(priv->bssid, mac))
+ return -ENOENT;
+
+ rndis_fill_station_info(usbdev, sinfo);
+
+ return 0;
+}
+
/*
* wireless extension handlers
*/
@@ -2459,7 +2500,6 @@ static int rndis_iw_set_encode_ext(struct net_device *dev,
(u8 *)&ext->addr.sa_data, ext->rx_seq, cipher,
flags);
}
-#endif
static int rndis_iw_get_rate(struct net_device *dev,
@@ -2492,6 +2532,7 @@ static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
return &priv->iwstats;
}
+#endif
#define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
@@ -2510,7 +2551,7 @@ static const iw_handler rndis_iw_handler[] =
IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
IW_IOCTL(SIOCSIWESSID) = (iw_handler) cfg80211_wext_siwessid,
IW_IOCTL(SIOCGIWESSID) = (iw_handler) cfg80211_wext_giwessid,
- IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
+ IW_IOCTL(SIOCGIWRATE) = (iw_handler) cfg80211_wext_giwrate,
IW_IOCTL(SIOCSIWRTS) = (iw_handler) cfg80211_wext_siwrts,
IW_IOCTL(SIOCGIWRTS) = (iw_handler) cfg80211_wext_giwrts,
IW_IOCTL(SIOCSIWFRAG) = (iw_handler) cfg80211_wext_siwfrag,
@@ -2539,7 +2580,7 @@ static const struct iw_handler_def rndis_iw_handlers = {
.standard = (iw_handler *)rndis_iw_handler,
.private = (iw_handler *)rndis_wlan_private_handler,
.private_args = (struct iw_priv_args *)rndis_wlan_private_args,
- .get_wireless_stats = rndis_get_wireless_stats,
+ .get_wireless_stats = cfg80211_wireless_stats,
};
@@ -2614,6 +2655,7 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
priv->connected = true;
+ memcpy(priv->bssid, bssid, ETH_ALEN);
usbnet_resume_rx(usbdev);
netif_carrier_on(usbdev->net);
@@ -2928,64 +2970,30 @@ static void rndis_update_wireless_stats(struct work_struct *work)
struct rndis_wlan_private *priv =
container_of(work, struct rndis_wlan_private, stats_work.work);
struct usbnet *usbdev = priv->usbdev;
- struct iw_statistics iwstats;
__le32 rssi, tmp;
int len, ret, j;
- unsigned long flags;
int update_jiffies = STATS_UPDATE_JIFFIES;
void *buf;
- spin_lock_irqsave(&priv->stats_lock, flags);
- memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
- spin_unlock_irqrestore(&priv->stats_lock, flags);
-
- /* only update stats when connected */
- if (!is_associated(usbdev)) {
- iwstats.qual.qual = 0;
- iwstats.qual.level = 0;
- iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
- | IW_QUAL_LEVEL_UPDATED
- | IW_QUAL_NOISE_INVALID
- | IW_QUAL_QUAL_INVALID
- | IW_QUAL_LEVEL_INVALID;
+ /* Only check/do workaround when connected. Calling is_associated()
+ * also polls device with rndis_command() and catches for media link
+ * indications.
+ */
+ if (!is_associated(usbdev))
goto end;
- }
len = sizeof(rssi);
ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
+ if (ret == 0)
+ priv->last_qual = level_to_qual(le32_to_cpu(rssi));
devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
le32_to_cpu(rssi));
- if (ret == 0) {
- memset(&iwstats.qual, 0, sizeof(iwstats.qual));
- iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
- iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
- iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
- | IW_QUAL_LEVEL_UPDATED
- | IW_QUAL_NOISE_INVALID;
- }
-
- memset(&iwstats.discard, 0, sizeof(iwstats.discard));
-
- len = sizeof(tmp);
- ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
- if (ret == 0)
- iwstats.discard.misc += le32_to_cpu(tmp);
-
- len = sizeof(tmp);
- ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
- if (ret == 0)
- iwstats.discard.misc += le32_to_cpu(tmp);
-
- len = sizeof(tmp);
- ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
- if (ret == 0)
- iwstats.discard.misc += le32_to_cpu(tmp);
/* Workaround transfer stalls on poor quality links.
* TODO: find right way to fix these stalls (as stalls do not happen
* with ndiswrapper/windows driver). */
- if (iwstats.qual.qual <= 25) {
+ if (priv->last_qual <= 25) {
/* Decrease stats worker interval to catch stalls.
* faster. Faster than 400-500ms causes packet loss,
* Slower doesn't catch stalls fast enough.
@@ -3013,9 +3021,6 @@ static void rndis_update_wireless_stats(struct work_struct *work)
kfree(buf);
}
end:
- spin_lock_irqsave(&priv->stats_lock, flags);
- memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
- spin_unlock_irqrestore(&priv->stats_lock, flags);
if (update_jiffies >= HZ)
update_jiffies = round_jiffies_relative(update_jiffies);
@@ -3146,7 +3151,6 @@ static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
priv->usbdev = usbdev;
mutex_init(&priv->command_lock);
- spin_lock_init(&priv->stats_lock);
/* because rndis_command() sleeps we need to use workqueue */
priv->workqueue = create_singlethread_workqueue("rndis_wlan");
@@ -3183,14 +3187,6 @@ static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
else
usbdev->net->flags &= ~IFF_MULTICAST;
- priv->iwstats.qual.qual = 0;
- priv->iwstats.qual.level = 0;
- priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
- | IW_QUAL_LEVEL_UPDATED
- | IW_QUAL_NOISE_INVALID
- | IW_QUAL_QUAL_INVALID
- | IW_QUAL_LEVEL_INVALID;
-
/* fill-out wiphy structure and register w/ cfg80211 */
memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
wiphy->privid = rndis_wiphy_privid;