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| author |   Simon Wunderlich <sw@simonwunderlich.de> | 2014-08-02 09:12:54 +0300 |
|---|---|---|
| committer |   Kalle Valo <kvalo@qca.qualcomm.com> | 2014-08-04 09:07:54 +0300 |
| commit | 855aed1220d2c94425ab01a85fe7a6f5c436940f (patch) | |
| tree | 9d94bc1928b1dd95b4d807d751b1618a69964f7c /drivers/net/wireless/ath/spectral_common.h | |
| parent | ath: Move spectral debugfs structs to shared header (diff) | |
| download | linux-dev-855aed1220d2c94425ab01a85fe7a6f5c436940f.tar.xz linux-dev-855aed1220d2c94425ab01a85fe7a6f5c436940f.zip | |
ath10k: add spectral scan feature
Adds the spectral scan feature for ath10k. The spectral scan is triggered by
configuring a mode through a debugfs control file. Samples can be gathered via
another relay debugfs file.
Essentially, to try it out:
ip link set dev wlan0 up
echo background > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
echo trigger > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
iw dev wlan0 scan
echo disable > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
cat /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan0 > samples
This feature is still experimental. Based on the original RFC patch of
Sven Eckelmann.
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/spectral_common.h')
| -rw-r--r-- | drivers/net/wireless/ath/spectral_common.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/spectral_common.h b/drivers/net/wireless/ath/spectral_common.h index b9ab722747bd..0d742acb1599 100644 --- a/drivers/net/wireless/ath/spectral_common.h +++ b/drivers/net/wireless/ath/spectral_common.h @@ -20,6 +20,11 @@ #define SPECTRAL_HT20_NUM_BINS 56 #define SPECTRAL_HT20_40_NUM_BINS 128 +/* TODO: could possibly be 512, but no samples this large + * could be acquired so far. + */ +#define SPECTRAL_ATH10K_MAX_NUM_BINS 256 + /* FFT sample format given to userspace via debugfs. * * Please keep the type/length at the front position and change @@ -31,6 +36,7 @@ enum ath_fft_sample_type { ATH_FFT_SAMPLE_HT20 = 1, ATH_FFT_SAMPLE_HT20_40, + ATH_FFT_SAMPLE_ATH10K, }; struct fft_sample_tlv { @@ -85,4 +91,23 @@ struct fft_sample_ht20_40 { u8 data[SPECTRAL_HT20_40_NUM_BINS]; } __packed; +struct fft_sample_ath10k { + struct fft_sample_tlv tlv; + u8 chan_width_mhz; + __be16 freq1; + __be16 freq2; + __be16 noise; + __be16 max_magnitude; + __be16 total_gain_db; + __be16 base_pwr_db; + __be64 tsf; + s8 max_index; + u8 rssi; + u8 relpwr_db; + u8 avgpwr_db; + u8 max_exp; + + u8 data[0]; +} __packed; + #endif /* SPECTRAL_COMMON_H */ |