mirror of
https://github.com/torvalds/linux.git
synced 2024-12-30 14:52:05 +00:00
855aed1220
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>
114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
/*
|
|
* Copyright (c) 2013 Qualcomm Atheros, Inc.
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifndef SPECTRAL_COMMON_H
|
|
#define SPECTRAL_COMMON_H
|
|
|
|
#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
|
|
* other fields after adding another sample type
|
|
*
|
|
* TODO: this might need rework when switching to nl80211-based
|
|
* interface.
|
|
*/
|
|
enum ath_fft_sample_type {
|
|
ATH_FFT_SAMPLE_HT20 = 1,
|
|
ATH_FFT_SAMPLE_HT20_40,
|
|
ATH_FFT_SAMPLE_ATH10K,
|
|
};
|
|
|
|
struct fft_sample_tlv {
|
|
u8 type; /* see ath_fft_sample */
|
|
__be16 length;
|
|
/* type dependent data follows */
|
|
} __packed;
|
|
|
|
struct fft_sample_ht20 {
|
|
struct fft_sample_tlv tlv;
|
|
|
|
u8 max_exp;
|
|
|
|
__be16 freq;
|
|
s8 rssi;
|
|
s8 noise;
|
|
|
|
__be16 max_magnitude;
|
|
u8 max_index;
|
|
u8 bitmap_weight;
|
|
|
|
__be64 tsf;
|
|
|
|
u8 data[SPECTRAL_HT20_NUM_BINS];
|
|
} __packed;
|
|
|
|
struct fft_sample_ht20_40 {
|
|
struct fft_sample_tlv tlv;
|
|
|
|
u8 channel_type;
|
|
__be16 freq;
|
|
|
|
s8 lower_rssi;
|
|
s8 upper_rssi;
|
|
|
|
__be64 tsf;
|
|
|
|
s8 lower_noise;
|
|
s8 upper_noise;
|
|
|
|
__be16 lower_max_magnitude;
|
|
__be16 upper_max_magnitude;
|
|
|
|
u8 lower_max_index;
|
|
u8 upper_max_index;
|
|
|
|
u8 lower_bitmap_weight;
|
|
u8 upper_bitmap_weight;
|
|
|
|
u8 max_exp;
|
|
|
|
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 */
|