summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/mwl8k.c
diff options
context:
space:
mode:
authorJohn W. Linville <linville@tuxdriver.com>2010-07-28 14:04:24 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-07-29 12:46:45 -0400
commit0d462bbb0e20863b6c796abd779bfdb534d60278 (patch)
tree4e3d3baf1ea55ed16a36ff634bbbeccde1827e51 /drivers/net/wireless/mwl8k.c
parent4c85ab11ca56da1aa59b58c80cc6a356515cc645 (diff)
mwl8k: add get_survey callback in order to get channel noise
Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Diffstat (limited to 'drivers/net/wireless/mwl8k.c')
-rw-r--r--drivers/net/wireless/mwl8k.c31
1 files changed, 27 insertions, 4 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 28beeaf1f4c..d761ed2d8af 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -86,7 +86,7 @@ struct rxd_ops {
void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr);
void (*rxd_refill)(void *rxd, dma_addr_t addr, int len);
int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status,
- __le16 *qos);
+ __le16 *qos, s8 *noise);
};
struct mwl8k_device_info {
@@ -207,6 +207,9 @@ struct mwl8k_priv {
/* Tasklet to perform RX. */
struct tasklet_struct poll_rx_task;
+
+ /* Most recently reported noise in dBm */
+ s8 noise;
};
/* Per interface specific private data */
@@ -741,7 +744,7 @@ static void mwl8k_rxd_8366_ap_refill(void *_rxd, dma_addr_t addr, int len)
static int
mwl8k_rxd_8366_ap_process(void *_rxd, struct ieee80211_rx_status *status,
- __le16 *qos)
+ __le16 *qos, s8 *noise)
{
struct mwl8k_rxd_8366_ap *rxd = _rxd;
@@ -752,6 +755,7 @@ mwl8k_rxd_8366_ap_process(void *_rxd, struct ieee80211_rx_status *status,
memset(status, 0, sizeof(*status));
status->signal = -rxd->rssi;
+ *noise = -rxd->noise_floor;
if (rxd->rate & MWL8K_8366_AP_RATE_INFO_MCS_FORMAT) {
status->flag |= RX_FLAG_HT;
@@ -839,7 +843,7 @@ static void mwl8k_rxd_sta_refill(void *_rxd, dma_addr_t addr, int len)
static int
mwl8k_rxd_sta_process(void *_rxd, struct ieee80211_rx_status *status,
- __le16 *qos)
+ __le16 *qos, s8 *noise)
{
struct mwl8k_rxd_sta *rxd = _rxd;
u16 rate_info;
@@ -853,6 +857,7 @@ mwl8k_rxd_sta_process(void *_rxd, struct ieee80211_rx_status *status,
memset(status, 0, sizeof(*status));
status->signal = -rxd->rssi;
+ *noise = -rxd->noise_level;
status->antenna = MWL8K_STA_RATE_INFO_ANTSELECT(rate_info);
status->rate_idx = MWL8K_STA_RATE_INFO_RATEID(rate_info);
@@ -1053,7 +1058,8 @@ static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size);
- pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos);
+ pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos,
+ &priv->noise);
if (pkt_len < 0)
break;
@@ -3755,6 +3761,22 @@ static int mwl8k_get_stats(struct ieee80211_hw *hw,
return mwl8k_cmd_get_stat(hw, stats);
}
+static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
+ struct survey_info *survey)
+{
+ struct mwl8k_priv *priv = hw->priv;
+ struct ieee80211_conf *conf = &hw->conf;
+
+ if (idx != 0)
+ return -ENOENT;
+
+ survey->channel = conf->channel;
+ survey->filled = SURVEY_INFO_NOISE_DBM;
+ survey->noise = priv->noise;
+
+ return 0;
+}
+
static int
mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
enum ieee80211_ampdu_mlme_action action,
@@ -3786,6 +3808,7 @@ static const struct ieee80211_ops mwl8k_ops = {
.sta_remove = mwl8k_sta_remove,
.conf_tx = mwl8k_conf_tx,
.get_stats = mwl8k_get_stats,
+ .get_survey = mwl8k_get_survey,
.ampdu_action = mwl8k_ampdu_action,
};