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ath5k: Add channel time to survey data 

Include the channel utilization (busy, rx, tx) in the survey results.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bruno Randolf 2010-10-19 16:56:54 +09:00 committed by John W. Linville
parent 3dd0923de4
commit edb40a23c8
1 changed files with 19 additions and 1 deletions
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20
drivers/net/wireless/ath/ath5k/base.c
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@ -3206,14 +3206,32 @@ static int ath5k_get_survey(struct ieee80211_hw *hw, int idx,
{
struct ath5k_softc *sc = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
struct ath_common *common = ath5k_hw_common(sc->ah);
struct ath_cycle_counters *cc = &common->cc_survey;
unsigned int div = common->clockrate * 1000;
if (idx != 0)
if (idx != 0)
return -ENOENT;
survey->channel = conf->channel;
survey->filled = SURVEY_INFO_NOISE_DBM;
survey->noise = sc->ah->ah_noise_floor;
spin_lock_bh(&common->cc_lock);
ath_hw_cycle_counters_update(common);
if (cc->cycles > 0) {
survey->filled |= SURVEY_INFO_CHANNEL_TIME |
SURVEY_INFO_CHANNEL_TIME_BUSY |
SURVEY_INFO_CHANNEL_TIME_RX |
SURVEY_INFO_CHANNEL_TIME_TX;
survey->channel_time += cc->cycles / div;
survey->channel_time_busy += cc->rx_busy / div;
survey->channel_time_rx += cc->rx_frame / div;
survey->channel_time_tx += cc->tx_frame / div;
}
memset(cc, 0, sizeof(*cc));
spin_unlock_bh(&common->cc_lock);
return 0;
}