]> git.baikalelectronics.ru Git - kernel.git/commit
ath9k: add spectral scan feature
authorSimon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Tue, 8 Jan 2013 13:48:58 +0000 (14:48 +0100)
committerJohn W. Linville <linville@tuxdriver.com>
Wed, 9 Jan 2013 19:37:12 +0000 (14:37 -0500)
commit7c26f86c104de9da707692b77baa4d377f35230e
tree813dde7e8c79800d0cd71cb84ebf175d22c19faa
parent786dabeb0991491572926ea180676c54c54fe240
ath9k: add spectral scan feature

Adds the spectral scan feature for ath9k. AR92xx and AR93xx chips
are supported for now. 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:

echo chanscan > /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan_ctl
iw dev wlan0 scan
cat /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan0 > samples
echo disable > /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan_ctl

This feature is still experimental.

The special "chanscan" mode is used to perform spectral scan while
mac80211 is scanning for channels. To allow this,
sw_scan_start/complete() ops have been added.

The patch contains code snippets and information from Zefir Kurtisi and
information provided by Adrian Chadd and Felix Fietkau.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/ath/ath9k/ar9002_phy.c
drivers/net/wireless/ath/ath9k/ar9003_phy.c
drivers/net/wireless/ath/ath9k/ath9k.h
drivers/net/wireless/ath/ath9k/debug.c
drivers/net/wireless/ath/ath9k/debug.h
drivers/net/wireless/ath/ath9k/hw.h
drivers/net/wireless/ath/ath9k/init.c
drivers/net/wireless/ath/ath9k/mac.h
drivers/net/wireless/ath/ath9k/main.c
drivers/net/wireless/ath/ath9k/recv.c