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| author |   Simon Wunderlich <sw@simonwunderlich.de> | 2017-03-23 14:30:48 +0100 |
|---|---|---|
| committer |   Kalle Valo <kvalo@qca.qualcomm.com> | 2017-04-19 17:08:27 +0300 |
| commit | b90189759a7ff92aa47e8878f6b5a9f868e19895 (patch) | |
| tree | 8ec504e7d85ac305e225a329915f28d9e92f61c3 /drivers/net/wireless/ath/ath9k/hw.h | |
| parent | ath10k: bump up FW API to 6 (diff) | |
| download | linux-dev-b90189759a7ff92aa47e8878f6b5a9f868e19895.tar.xz linux-dev-b90189759a7ff92aa47e8878f6b5a9f868e19895.zip | |
ath9k: add noise floor override option
Introduce a debugfs option to manually override the noise floor,
ignoring the automatically tuned noise floor of the driver/hw.
In my tests with a AR9580 based module and a tx99 5 MHz interferer,
I could tune the noisefloor to -95 dBm or above to allow communication
again. The automatic noise floor calibration sometimes could adapt to
the situation as well, but not reliably and permanently.
I would consider this "feature" experimental and interesting for people
debugging the noise floor calibration or other effects of the hardware.
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fit.fraunhofer.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 9cbca1229bac..4ac70827d142 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -803,6 +803,7 @@ struct ath_hw { u32 rfkill_gpio; u32 rfkill_polarity; u32 ah_flags; + s16 nf_override; bool reset_power_on; bool htc_reset_init; |