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#!/bin/bash
I2C_DIR="/sys/bus/i2c/devices"
AP1_EEPROM="$I2C_DIR/1-0050/eeprom"
AP2_EEPROM="$I2C_DIR/1-0052/eeprom"
hw_version1=''
hw_version2=''
if [[ -f $AP1_EEPROM ]] ; then
hw_version1=$(mts-id-eeprom --accessory-card --in-file "$AP1_EEPROM" 2>/dev/null | grep '^hw-version:')
fi
if [[ -f $AP2_EEPROM ]] ; then
hw_version2=$(mts-id-eeprom --accessory-card --in-file "$AP2_EEPROM" 2>/dev/null | grep '^hw-version:')
fi
AP1=0
AP2=0
if [[ $hw_version1 =~ ^hw-version:[[:space:]]*\"MTAC-ETH ]] ; then
AP1=1
fi
if [[ $hw_version2 =~ ^hw-version:[[:space:]]*\"MTAC-ETH ]] ; then
AP2=1
fi
if ((AP1 == 0)) && ((AP2 == 1)) ; then
if ip addr show eth1 >/dev/null 2>&1 && ! ip addr show eth2 >/dev/null 2>&1 ; then
ip link set eth1 name eth2
fi
fi
# Handle the case where we are coming out of reset.
# udev will assign eth# where # is the first open slot starting from zero.
# We assing by AP slot here.
if ((AP1 == 1)) && ((AP2 == 1)) ; then
if (($(mts-io-sysfs show ap2/reset) == 0)) ; then
:
# Nothing to do if ap2 is in reset.
elif (($(mts-io-sysfs show ap1/reset) == 0)) ; then
if ip addr show eth1 >/dev/null 2>&1 && ! ip addr show eth2 >/dev/null 2>&1 ; then
ip link set eth1 name eth2
fi
fi
fi
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