#!/bin/sh
#
# "ANI-thing is better than no WiFi"-Workaround
#
# In order to avoid further WiFi-Blackouts that *might* be caused by a buggy
# ANI feature in the ath9k kernel module, we disable ANI until it got fixed in
# OpenWRT completely.

# Don't need to do anything, unless the script gets triggered by an "ifup"
# event.
[[ "$ACTION" != "ifup" ]] && exit 0;
[[ "$INTERFACE" != "mesh_radio0" && "$INTERFACE" != "ibss_radio0" && "$INTERFACE" != "mesh_radio1" && "$INTERFACE" != "ibss_radio1" && "$INTERFACE" != "client" ]] && exit 0;

# Test whether disabling ANI is applicable or not
if [ -e "/sys/kernel/debug/ieee80211/phy0/ath9k/ani" ] ; then
	logger -s -t ath9k-disable-ani -p local0.info "phy0 disabling ANI"
	/bin/echo 0 > /sys/kernel/debug/ieee80211/phy0/ath9k/ani
fi

if [ -e "/sys/kernel/debug/ieee80211/phy1/ath9k/ani" ] ; then
        logger -s -t ath9k-disable-ani -p local0.info "phy1 disabling ANI"
        /bin/echo 0 > /sys/kernel/debug/ieee80211/phy1/ath9k/ani
fi