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openwrt-xburst/target/linux/ar71xx/base-files/etc/hotplug.d/net/10-ar922x-led-fix
juhosg 1631af0254 ar71xx: Buffalo WZR-HP-AG300H LED support
An improved LED support for Buffalo WZR-HP-AG300H.

There will be two new packages to go with this patch
(ar922x-led-fix-hotplug and ar922x-led-fix-init).
These packages essentially perform the same task of
disabling "JTAG over GPIO pins" function which is
currently required for LEDs on AR922x emac GPIO to work,
and are both considered a temporary fix that circumvent
this problem.

[juhosg: add the hotplug script from the proposed
ar922x-led-fix-hotplug package to ar71xx/base-files]

Signed-off-by: Yoichi Shinoda <shinoda@jaist.ac.jp>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33294 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-08-29 10:11:55 +00:00

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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`
if [ -z $phyname -o $ACTION != "add" ]; then exit 0; fi
#
# 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 ] && {
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
}
}
if [ $phyname -a $ACTION = "add" ]; then
. /lib/ar71xx.sh
case $(ar71xx_board_name) in
wzr-hp-ag300h)
ar922x_disable_gpio_jtag $phyname
;;
esac;
fi
exit 0