diff options
| author | Christian Lamparter <chunkeey@googlemail.com> | 2011-08-15 21:50:48 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-08-24 22:41:42 +0400 |
| commit | acf1771221f2877ab5d36487930cd6a2ecaa73e6 (patch) | |
| tree | cbe4f29eb2b7c5a78a63f99bdffdbaaac141ef33 /drivers/net/wireless/ath/carl9170/phy.c | |
| parent | f5e2289a142c714732aef67cadbb0a8843565507 (diff) | |
| download | linux-acf1771221f2877ab5d36487930cd6a2ecaa73e6.tar.xz | |
carl9170: improve site survey
The firmware keeps track of channel usage. This data can
be used by the automatic channel selection to find the
*best* channel.
Survey data from wlan22
frequency: 2412 MHz [in use]
noise: -86 dBm
channel active time: 3339608 ms
channel busy time: 270982 ms
channel transmit time: 121515 ms
Survey data from wlan22
frequency: 2417 MHz
noise: -86 dBm
channel active time: 70 ms
channel busy time: 2 ms
channel transmit time: 1 ms
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/carl9170/phy.c')
| -rw-r--r-- | drivers/net/wireless/ath/carl9170/phy.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/carl9170/phy.c b/drivers/net/wireless/ath/carl9170/phy.c index 8635c5c8463c..472efc7e3402 100644 --- a/drivers/net/wireless/ath/carl9170/phy.c +++ b/drivers/net/wireless/ath/carl9170/phy.c @@ -1573,6 +1573,9 @@ int carl9170_get_noisefloor(struct ar9170 *ar) AR9170_PHY_EXT_CCA_MIN_PWR, phy_res[i + 2]), 8); } + if (ar->channel) + ar->survey[ar->channel->hw_value].noise = ar->noise[0]; + return 0; } @@ -1765,10 +1768,6 @@ int carl9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, ar->chan_fail = 0; } - err = carl9170_get_noisefloor(ar); - if (err) - return err; - if (ar->heavy_clip) { err = carl9170_write_reg(ar, AR9170_PHY_REG_HEAVY_CLIP_ENABLE, 0x200 | ar->heavy_clip); |