diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 28beeaf1f4c645cd243f685047b2549507370670..d761ed2d8af46b8d8be19eab01101dc511321b00 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, };