#!/bin/sh

# Author: Benoit PAPILLAULT <benoit.papillault@free.fr>
# Creation: 12/05/2004

# Goal: Start the connection

# Ensure to have a working PATH
prefix=@prefix@
exec_prefix=@exec_prefix@
export PATH=/sbin:/bin:/usr/sbin:/usr/bin:@sbindir@:@bindir@

# check for root privileges

if [ "`whoami`" != "root" ]; then
  echo "You must launch this script with root privileges. Enter root password."
  exec su -c "$0 $@"
  exit -1
fi

echo "Starting ADSL connection..."

# load usbcore if needed
if [ ! -d /proc/bus/usb ]; then
    echo -n "Loading USB support... "
    modprobe usbcore
    sleep 1
    if [ ! -d /proc/bus/usb ]; then
        echo "KO";
        exit -1;
    else
        echo "OK";
    fi
fi

# mount usbdevfs is this is not the case
if [ ! -f /proc/bus/usb/devices ]; then
    echo -n "Loading preliminary USB device filesystem support... "
    mount -t usbdevfs usbdevfs /proc/bus/usb
    sleep 1
    if [ ! -f /proc/bus/usb/devices ]; then
        echo "KO";
        exit -1
    else
        echo "OK";
    fi
fi

case `uname -r` in
    2.4.*)
        UHCI=usb-uhci
        UHCI_BIS=uhci
        OHCI=usb-ohci
        EHCI=ehci-hcd
        ;;
    2.5.*)
        UHCI=uhci-hcd
        UHCI_BIS=
        OHCI=ohci-hcd
        EHCI=ehci-hcd
        ;;
    2.6.*)
        UHCI=uhci-hcd
        UHCI_BIS=
        OHCI=ohci-hcd
        EHCI=ehci-hcd
        ;;
esac

# check for UHCI

if ! grep "^S:  Product=" /proc/bus/usb/devices |grep -q UHCI; then
    if lspci -v | grep "USB Controller" | grep -q UHCI; then
        echo -n "Loading UHCI support... "
        modprobe $UHCI
        if [ "${UHCI_BIS}" ]; then modprobe $UHCI_BIS; fi
        sleep 1
        if ! grep "^S:  Product=" /proc/bus/usb/devices |grep -q UHCI; then
            echo "KO";
        else
            echo "OK";
        fi
    fi
fi

# check for OHCI

if ! grep "^S:  Product=" /proc/bus/usb/devices |grep -q OHCI; then
    if lspci -v | grep "USB Controller" | grep -q OHCI; then
        echo -n "Loading OHCI support... "
        modprobe $OHCI
        sleep 1
        if ! grep "^S:  Product=" /proc/bus/usb/devices |grep -q OHCI; then
            echo "KO";
        else
            echo "OK";
        fi
    fi
fi

# check for EHCI

if ! grep "^S:  Product=" /proc/bus/usb/devices |grep -q EHCI; then
    if lspci -v | grep "USB Controller" | grep -q EHCI; then
        echo -n "Loading EHCI support... "
        modprobe $EHCI
        sleep 1
        if ! grep "^S:  Product=" /proc/bus/usb/devices |grep -q EHCI; then
            echo "KO";
        else
            echo "OK";
        fi
    fi
fi

# if one configuration file exists, read it. This file should define :
# 
# FIRMWARE_LOADER_FILE
# FIRMWARE_FILE
# PPPD_PEER
#

# At this point, USB is properly configured (/proc/bus/usb/devices can
# be used)

if [ -f /etc/speedtouch/speedtouch.conf ]; then
  . /etc/speedtouch/speedtouch.conf
fi

if [ "$FIRMWARE_LOADER_FILE" ]; then
  MODEM_RUN_OPTIONS="$MODEM_RUN_OPTIONS -a $FIRMWARE_LOADER_FILE"
fi

if [ "$FIRMWARE_FILE" ]; then
    MODEM_RUN_OPTIONS="$MODEM_RUN_OPTIONS -f $FIRMWARE_FILE"
else
    echo "FIRMWARE_FILE undefined"
    exit -1
fi

# convention : when modem_run returns, meaning that the DSL line is
# up, we create the file /var/run/speedtouch-up. This file is removed
# when the modem is removed (in the hotplug script).

# Of course, this does not work when several modems are connected (we
# should write a small executable that get the mac addresse from the
# modem and use it as a key)

if ! modem_run $MODEM_RUN_OPTIONS; then
    exit 1
fi

#
# for PPPoA connections :
#
# pppd call speedtouch-pppoa updetach
#
# for PPPoE connections :
#
# pppd call speedtouch-pppoe updetach
#

if [ "${PPPD_PEER}" == "" ]; then
    echo "PPPD_PEER undefined"
    exit -1
fi

pppd call "${PPPD_PEER}" updetach