target/linux/ar71xx/base-files/etc/hotplug.d/net/10-ar922x-led-fix

   1 #!/bin/sh
   2
   3 # For AR9220 and AR9223, GPIO JTAG must explicit be disabled
   4 # before LEDs start working. Do this when wifi device is
   5 # detected.
   6
   7 #
   8 # $DEVPATH is not valid for some boards (including WZR-HP-AG300H).
   9 # Manipulate the $DEVPATH to reach the corresponding phyN.
  10 #
  11
  12 devdir=$(dirname $DEVPATH)
  13 devdir=$(dirname $devdir)
  14 phydir=/sys$devdir/ieee80211
  15
  16 [ -d $phydir ] || exit 0
  17
  18 phyname=$(cat $phydir/phy*/name)
  19
  20 [ -z $phyname -o $ACTION != "add" ] && exit 0
  21
  22 #
  23 # ar922x_disable_gpio_jtag():
  24 #
  25 # Emulate
  26 #       REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
  27 # for AR9220 and AR9223.
  28 #
  29
  30 ar922x_disable_gpio_jtag() {
  31         local regidx=0x4054
  32
  33         [ -f /sys/kernel/debug/ieee80211/$1/ath9k/regidx ] || return
  34
  35         echo $regidx > /sys/kernel/debug/ieee80211/$1/ath9k/regidx
  36         regval=$(cat /sys/kernel/debug/ieee80211/$1/ath9k/regval)
  37         regval=$((regval | 0x20000))
  38         echo regval $regval
  39         echo $regval > /sys/kernel/debug/ieee80211/$1/ath9k/regval
  40 }
  41
  42 [ $phyname -a $ACTION = "add" ] && {
  43         . /lib/functions.sh
  44
  45         case $(board_name) in
  46         wzr-hp-ag300h)
  47                 ar922x_disable_gpio_jtag $phyname
  48                 ;;
  49         esac;
  50 }
  51
  52 exit 0