OpenWrt – Rev 1

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#!/bin/sh

# For AR9220 and AR9223, GPIO JTAG must explicit be disabled
# before LEDs start working. Do this when wifi device is
# detected.

#
# $DEVPATH is not valid for some boards (including WZR-HP-AG300H).
# Manipulate the $DEVPATH to reach the corresponding phyN.
#

devdir=$(dirname $DEVPATH)
devdir=$(dirname $devdir)
phydir=/sys$devdir/ieee80211
phyname=$(cat $phydir/phy*/name)

[ -z $phyname -o $ACTION != "add" ] && exit 0

#
# ar922x_disable_gpio_jtag():
#
# Emulate
#       REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
# for AR9220 and AR9223.
#

ar922x_disable_gpio_jtag() {
        local regidx=0x4054

        [ -f /sys/kernel/debug/ieee80211/$1/ath9k/regidx ] || return

        echo $regidx > /sys/kernel/debug/ieee80211/$1/ath9k/regidx
        regval=$(cat /sys/kernel/debug/ieee80211/$1/ath9k/regval)
        regval=$((regval | 0x20000))
        echo regval $regval
        echo $regval > /sys/kernel/debug/ieee80211/$1/ath9k/regval
}

[ $phyname -a $ACTION = "add" ] && {
        . /lib/functions.sh

        case $(board_name) in
        wzr-hp-ag300h)
                ar922x_disable_gpio_jtag $phyname
                ;;
        esac;
}

exit 0