#! /bin/sh
#----------------------------------------------------------------------------
# /etc/init.d/eth - configuration of your ethernet card
#
# Creation:     2001-10-15  fm
# Last Update:  $Id$
#
# Copyright (c) 2001-2013 the eisfair team, team(at)eisfair(dot)org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#----------------------------------------------------------------------------
script='eth:'

. /etc/init.d/functions
. /etc/config.d/base

if [ "$ETH_DO_DEBUG" = yes ]
then
    set -x
fi

# ---------------------------------------------------------------------------
# show mapping message only on start
# ---------------------------------------------------------------------------
show_mapping_msg ()
{
    _job=${1}
    _drv_old=${2}
    _drv=${3}

    case ${_job} in
    start)
        echo "   Mapping ethernet driver ${_drv_old} to ${_drv} ..."
        ;;
    esac
}

# ---------------------------------------------------------------------------
# drv mapping
# ---------------------------------------------------------------------------
drv_mapping ()
{
    _job=${1}

    case ${drv} in
        eepro100)                    # comes from 2.4.35-wt1
            _old_drv_=${drv}
            drv=e100
            show_mapping_msg ${_job} ${_old_drv_} ${drv}
        ;;
        "e1000old"|"intel-gige")     # e1000old comes from 2.4.35-wt1, intel-gige comes from 2.4.26
            _old_drv_=${drv}
            drv=e1000
            show_mapping_msg ${_job} ${_old_drv_} ${drv}
        ;;
        r1000)                       # comes from 2.4.35-wt1
            _old_drv_=${drv}
            drv=r8169
            show_mapping_msg ${_job} ${_old_drv_} ${drv}
        ;;
        "r8101"|"r8168")             # comes from 2.4.35-wt1
            # only map to r8169 for kernel versions before 2.4.0 because r8101 and r8168 from
            # realtec are part of kernel 2.4.0 and supporting more chips than vanilla r8169
            kerneldate=`uname -v | awk '{print $(NF-5), $(NF-4), $(NF-3), $(NF-2), $(NF-1), $NF}'`
            if [ "`date -d "$kerneldate" +%s`" -lt 1371406939 ]
            then
                _old_drv_=${drv}
                drv=r8169
                show_mapping_msg ${_job} ${_old_drv_} ${drv}
            fi
        ;;
        velocityget)                 # comes from 2.4.35-wt1
            _old_drv_=${drv}
            drv=via-velocity
            show_mapping_msg ${_job} ${_old_drv_} ${drv}
        ;;
        "rtl8139"|"rtl8139-orig")    # comes from 2.4.26
            _old_drv_=${drv}
            drv=8139too
            show_mapping_msg ${_job} ${_old_drv_} ${drv}
        ;;
        ns820)                       # comes from 2.4.26
            _old_drv_=${drv}
            drv=ns83820
            show_mapping_msg ${_job} ${_old_drv_} ${drv}
        ;;
        myson803)                    # comes from 2.4.26
            _old_drv_=${drv}
            drv=fealnx
            show_mapping_msg ${_job} ${_old_drv_} ${drv}
        ;;
        sk98lin)                    # comes from 2.4.35-wt1
            _old_drv_=${drv}

            # 2 different drivers replacing sk98lin: skge and sky2
            # in case of 2 cards: the last driver wins :(
            # there are more cards for sky2, let this driver win in case of 2 cards
            # kernel26test # modinfo sky2 | grep alias | wc -l
            # 39
            # kernel26test # modinfo skge | grep alias | wc -l
            # 11
            lspciout="`lspci -nnk | grep 'Ethernet controller' -A3 | grep 'Kernel modules' | cut -d: -f2`"
            for driver in skge sky2
            do
                if [ -n "`echo "$lspciout" | grep "$driver"`" ]
                then
                    drv="$driver"
                fi
            done

            show_mapping_msg ${_job} ${_old_drv_} ${drv}
        ;;
    esac
}

# ---------------------------------------------------------------------------
# main
# ---------------------------------------------------------------------------
case $1 in
    start)
        boot_mesg " * Loading ethernet drivers ..."
        idx=1

        while [ "$idx" -le "$ETH_DRV_N" ]
        do
            eval drv='$ETH_DRV_'$idx
            eval opt='$ETH_DRV_'$idx'_OPTION'

            case $drv in
                *_cs)
                    echo "   Ethernet driver $drv should be loaded by pcmcia cardmgr in a few seconds ..."
                ;;
                *)
                    drv_mapping "start"
                    modprobe $drv $opt
                    rtc=$?

                    if [ $rtc != 0 -a "$opt" != "" ]
                    then
                        echo "   Loading of ethernet driver $drv failed, trying again without options ..."
                        modprobe $drv   # some drivers (e.g. ne.o) don't want options anymore
                        rtc=$?
                    fi

                    if [ $rtc != 0 ]
                    then
                        echo $script" Ethernet driver $drv $opt failed!" >>/bootmsg.txt
                    fi
                ;;
            esac

            idx=`/usr/bin/expr $idx + 1`
        done
        evaluate_retval
    ;;
    stop)
        boot_mesg " * Unloading ethernet drivers ..."
        idx=1

        while [ "$idx" -le "$ETH_DRV_N" ]
        do
            eval drv='$ETH_DRV_'$idx

            case $drv in
                *_cs)
                    :
                ;;
                *)
                    drv_mapping

                    case $drv in
                        "e100"|"e1000"|"e1000e"|"skge")
                            # modules must keep loaded for wol
                            echo "   Don't unloading ethernet driver $drv for wake on lan ..."
                        ;;
                        *)
                            rmmod $drv 2>/dev/null
                        ;;
                    esac
                ;;
            esac

            idx=`/usr/bin/expr $idx + 1`
        done
        evaluate_retval
    ;;
esac

set +x