From edb40a23c8dc5b5be219bf4561074b6233bba65f Mon Sep 17 00:00:00 2001
From: Bruno Randolf <br1@einfach.org>
Date: Tue, 19 Oct 2010 16:56:54 +0900
Subject: [PATCH] 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>
---
drivers/net/wireless/ath/ath5k/base.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 8251946842e..484aad5b11b 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -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;
}
--
2.20.1