ath9k: add a new fix for signal strength / noise measurements
SVN-Revision: 26798
This commit is contained in:
parent
f9a92812cf
commit
28fb716737
1 changed files with 88 additions and 0 deletions
88
package/mac80211/patches/570-ath9k_noise_dbm_fixup.patch
Normal file
88
package/mac80211/patches/570-ath9k_noise_dbm_fixup.patch
Normal file
|
@ -0,0 +1,88 @@
|
|||
--- a/drivers/net/wireless/ath/ath9k/calib.c
|
||||
+++ b/drivers/net/wireless/ath/ath9k/calib.c
|
||||
@@ -365,6 +365,7 @@ bool ath9k_hw_getnf(struct ath_hw *ah, s
|
||||
|
||||
if (!caldata) {
|
||||
chan->noisefloor = nf;
|
||||
+ ah->noise = ath9k_hw_getchan_noise(ah, chan);
|
||||
return false;
|
||||
}
|
||||
|
||||
@@ -372,6 +373,7 @@ bool ath9k_hw_getnf(struct ath_hw *ah, s
|
||||
caldata->nfcal_pending = false;
|
||||
ath9k_hw_update_nfcal_hist_buffer(ah, caldata, nfarray);
|
||||
chan->noisefloor = h[0].privNF;
|
||||
+ ah->noise = ath9k_hw_getchan_noise(ah, chan);
|
||||
return true;
|
||||
}
|
||||
|
||||
@@ -398,10 +400,15 @@ void ath9k_init_nfcal_hist_buffer(struct
|
||||
|
||||
s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan)
|
||||
{
|
||||
- if (!ah->curchan || !ah->curchan->noisefloor)
|
||||
- return ath9k_hw_get_default_nf(ah, chan);
|
||||
+ s8 noise = ATH_DEFAULT_NOISE_FLOOR;
|
||||
|
||||
- return ah->curchan->noisefloor;
|
||||
+ if (chan && chan->noisefloor) {
|
||||
+ s8 delta = chan->noisefloor -
|
||||
+ ath9k_hw_get_default_nf(ah, chan);
|
||||
+ if (delta > 0)
|
||||
+ noise += delta;
|
||||
+ }
|
||||
+ return noise;
|
||||
}
|
||||
EXPORT_SYMBOL(ath9k_hw_getchan_noise);
|
||||
|
||||
--- a/drivers/net/wireless/ath/ath9k/hw.c
|
||||
+++ b/drivers/net/wireless/ath/ath9k/hw.c
|
||||
@@ -1286,6 +1286,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
|
||||
memset(caldata, 0, sizeof(*caldata));
|
||||
ath9k_init_nfcal_hist_buffer(ah, chan);
|
||||
}
|
||||
+ ah->noise = ath9k_hw_getchan_noise(ah, chan);
|
||||
|
||||
if (bChannelChange &&
|
||||
(ah->chip_fullsleep != true) &&
|
||||
--- a/drivers/net/wireless/ath/ath9k/hw.h
|
||||
+++ b/drivers/net/wireless/ath/ath9k/hw.h
|
||||
@@ -677,6 +677,7 @@ struct ath_hw {
|
||||
enum nl80211_iftype opmode;
|
||||
enum ath9k_power_mode power_mode;
|
||||
|
||||
+ s8 noise;
|
||||
struct ath9k_hw_cal_data *caldata;
|
||||
struct ath9k_pacal_info pacal_info;
|
||||
struct ar5416Stats stats;
|
||||
--- a/drivers/net/wireless/ath/ath9k/main.c
|
||||
+++ b/drivers/net/wireless/ath/ath9k/main.c
|
||||
@@ -165,7 +165,7 @@ static void ath_update_survey_nf(struct
|
||||
|
||||
if (chan->noisefloor) {
|
||||
survey->filled |= SURVEY_INFO_NOISE_DBM;
|
||||
- survey->noise = chan->noisefloor;
|
||||
+ survey->noise = ath9k_hw_getchan_noise(ah, chan);
|
||||
}
|
||||
}
|
||||
|
||||
--- a/drivers/net/wireless/ath/ath9k/recv.c
|
||||
+++ b/drivers/net/wireless/ath/ath9k/recv.c
|
||||
@@ -956,6 +956,8 @@ static int ath9k_rx_skb_preprocess(struc
|
||||
struct ieee80211_rx_status *rx_status,
|
||||
bool *decrypt_error)
|
||||
{
|
||||
+ struct ath_hw *ah = common->ah;
|
||||
+
|
||||
memset(rx_status, 0, sizeof(struct ieee80211_rx_status));
|
||||
|
||||
/*
|
||||
@@ -976,7 +978,7 @@ static int ath9k_rx_skb_preprocess(struc
|
||||
|
||||
rx_status->band = hw->conf.channel->band;
|
||||
rx_status->freq = hw->conf.channel->center_freq;
|
||||
- rx_status->signal = ATH_DEFAULT_NOISE_FLOOR + rx_stats->rs_rssi;
|
||||
+ rx_status->signal = ah->noise + rx_stats->rs_rssi;
|
||||
rx_status->antenna = rx_stats->rs_antenna;
|
||||
rx_status->flag |= RX_FLAG_MACTIME_MPDU;
|
||||
|
Loading…
Reference in a new issue