diff options
| author | Michal Kazior <michal.kazior@tieto.com> | 2013-07-31 10:32:40 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2013-08-02 09:35:21 +0300 |
| commit | 2e1dea40512d7e99a7e91ac88a6f434a5d7c6fde (patch) | |
| tree | c8abfc11810c59cbacb2edf37de630e86f8bd3a5 /drivers/net/wireless/ath/ath10k/mac.c | |
| parent | 7c199997ded6c90fd45a50f49e9ac63adaacb95e (diff) | |
ath10k: implement get_survey()
This implements a limited subset of what can be
reported in the survey dump.
This can be used for assessing approximate channel
load, e.g. for automatic channel selection.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/mac.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/mac.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 57843377fa0..9ea31f89b74 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -2934,6 +2934,41 @@ static void ath10k_restart_complete(struct ieee80211_hw *hw) mutex_unlock(&ar->conf_mutex); } +static int ath10k_get_survey(struct ieee80211_hw *hw, int idx, + struct survey_info *survey) +{ + struct ath10k *ar = hw->priv; + struct ieee80211_supported_band *sband; + struct survey_info *ar_survey = &ar->survey[idx]; + int ret = 0; + + mutex_lock(&ar->conf_mutex); + + sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ]; + if (sband && idx >= sband->n_channels) { + idx -= sband->n_channels; + sband = NULL; + } + + if (!sband) + sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ]; + + if (!sband || idx >= sband->n_channels) { + ret = -ENOENT; + goto exit; + } + + spin_lock_bh(&ar->data_lock); + memcpy(survey, ar_survey, sizeof(*survey)); + spin_unlock_bh(&ar->data_lock); + + survey->channel = &sband->channels[idx]; + +exit: + mutex_unlock(&ar->conf_mutex); + return ret; +} + static const struct ieee80211_ops ath10k_ops = { .tx = ath10k_tx, .start = ath10k_start, @@ -2955,6 +2990,7 @@ static const struct ieee80211_ops ath10k_ops = { .flush = ath10k_flush, .tx_last_beacon = ath10k_tx_last_beacon, .restart_complete = ath10k_restart_complete, + .get_survey = ath10k_get_survey, #ifdef CONFIG_PM .suspend = ath10k_suspend, .resume = ath10k_resume, |