aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/zd1211rw/zd_mac.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_mac.c')
-rw-r--r--drivers/net/wireless/zd1211rw/zd_mac.c43
1 files changed, 35 insertions, 8 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 0eda534a648..0ddccf89398 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -814,13 +814,25 @@ static int filter_rx(struct ieee80211_device *ieee,
return -EINVAL;
}
-static void update_qual_rssi(struct zd_mac *mac, u8 qual_percent, u8 rssi)
+static void update_qual_rssi(struct zd_mac *mac,
+ const u8 *buffer, unsigned int length,
+ u8 qual_percent, u8 rssi_percent)
{
unsigned long flags;
+ struct ieee80211_hdr_3addr *hdr;
+ int i;
+
+ hdr = (struct ieee80211_hdr_3addr *)buffer;
+ if (length < offsetof(struct ieee80211_hdr_3addr, addr3))
+ return;
+ if (memcmp(hdr->addr2, zd_mac_to_ieee80211(mac)->bssid, ETH_ALEN) != 0)
+ return;
spin_lock_irqsave(&mac->lock, flags);
- mac->qual_average = (7 * mac->qual_average + qual_percent) / 8;
- mac->rssi_average = (7 * mac->rssi_average + rssi) / 8;
+ i = mac->stats_count % ZD_MAC_STATS_BUFFER_SIZE;
+ mac->qual_buffer[i] = qual_percent;
+ mac->rssi_buffer[i] = rssi_percent;
+ mac->stats_count++;
spin_unlock_irqrestore(&mac->lock, flags);
}
@@ -851,7 +863,6 @@ static int fill_rx_stats(struct ieee80211_rx_stats *stats,
if (stats->rate)
stats->mask |= IEEE80211_STATMASK_RATE;
- update_qual_rssi(mac, stats->signal, stats->rssi);
return 0;
}
@@ -875,6 +886,8 @@ int zd_mac_rx(struct zd_mac *mac, const u8 *buffer, unsigned int length)
sizeof(struct rx_status);
buffer += ZD_PLCP_HEADER_SIZE;
+ update_qual_rssi(mac, buffer, length, stats.signal, stats.rssi);
+
r = filter_rx(ieee, buffer, length, &stats);
if (r <= 0)
return r;
@@ -979,17 +992,31 @@ struct iw_statistics *zd_mac_get_wireless_stats(struct net_device *ndev)
{
struct zd_mac *mac = zd_netdev_mac(ndev);
struct iw_statistics *iw_stats = &mac->iw_stats;
+ unsigned int i, count, qual_total, rssi_total;
memset(iw_stats, 0, sizeof(struct iw_statistics));
/* We are not setting the status, because ieee->state is not updated
* at all and this driver doesn't track authentication state.
*/
spin_lock_irq(&mac->lock);
- iw_stats->qual.qual = mac->qual_average;
- iw_stats->qual.level = mac->rssi_average;
- iw_stats->qual.updated = IW_QUAL_QUAL_UPDATED|IW_QUAL_LEVEL_UPDATED|
- IW_QUAL_NOISE_INVALID;
+ count = mac->stats_count < ZD_MAC_STATS_BUFFER_SIZE ?
+ mac->stats_count : ZD_MAC_STATS_BUFFER_SIZE;
+ qual_total = rssi_total = 0;
+ for (i = 0; i < count; i++) {
+ qual_total += mac->qual_buffer[i];
+ rssi_total += mac->rssi_buffer[i];
+ }
spin_unlock_irq(&mac->lock);
+ iw_stats->qual.updated = IW_QUAL_NOISE_INVALID;
+ if (count > 0) {
+ iw_stats->qual.qual = qual_total / count;
+ iw_stats->qual.level = rssi_total / count;
+ iw_stats->qual.updated |=
+ IW_QUAL_QUAL_UPDATED|IW_QUAL_LEVEL_UPDATED;
+ } else {
+ iw_stats->qual.updated |=
+ IW_QUAL_QUAL_INVALID|IW_QUAL_LEVEL_INVALID;
+ }
/* TODO: update counter */
return iw_stats;
}