#!/bin/bash
#.Y / 70 83 / / / / 105 / / / /	 / /	      ;A4_QUER.Y
#.YT 3 2 0 0 3 3 1 / / /
#.H!a!0:linux/<scripts>/io/com/net/dsl/THIS!0.!c
#
# copyright : (C) 2012 by Thomas Bruecker =: tbrue
# email     : public0x05bf@bluewin.ch
#
# tbrue 13jan2012
#
# io com net THIS : dsl-functions
# +++++++++++++++++++++++++++++++
#
# MyHash("linux/<scripts>/io/com/net/dsl/THIS") = ???0x084F
#
# * for every function:
#   * if returned result is not commented, the function returns 0 on no-error.

SCRIPTS=root/bin

. /$SCRIPTS/io/usb/THIS
. /$SCRIPTS/string_/THIS


dsl_isModemConnected()
  # checks if the dsl modem is connected to the usb-port;
  # returns
  # * "0" if the dsl-modem is connected,
  # * "1" if not.
  {
    usb_isDevice 100d 3342
                                                   # return result of
  }                                                # "usb_isDevice ...".


dsl_IsReady()
  # checks if dsl is ready during check-time seconds;
  # $1 : check-time, check-time=0: wait infinitely.
  # returns
  # * "0" if dsl is ready,
  # * "1" if not.
  {
    local CheckTime

    CheckTime="$1"

    if ! dsl_isModemConnected ; then
        return 1
      fi
      # else

    if ! dsl_WaitForAtm0 $CheckTime 2  ; then
        return 1
      fi
      # else
        dsl_WaitForDsl $CheckTime 2
                                                   # return result of
  }                                                # "dsl_WaitForDsl ...".

dsl_WaitForAtm0()
  # checks if atm0 is ready during check-time seconds;
  # $1 : check-time, check-time = 0: wait infinitely;
  # $2 : # spaces to print before the message;
  # returns
  # * "0" if atm0 is ready,
  # * "1" if not.
  {
    local CheckTime I Result

    CheckTime="$1"
      # pass
      # * if 0 == $CheckTime : 0
      # * else               : $CheckTime = $CheckTime + 1
        if [ 0 != $CheckTime ]; then
            (( CheckTime++ ))
          fi

    string_Spaces $2 ;  echo -n  "wait for atm : "

    Result=1                                       # still no atm.
    for(( I = 1; I != CheckTime; I++ ));
      do
          if [ -f /proc/net/atm/cxacru:0 ]; then
              Result=0
              break
            fi

          echo -n  "."                             # 'entertainment'.
          sleep 1
        done

    echo ""
    return $Result
  }


dsl_WaitForDsl()
  # checks if dsl is ready during check-time seconds;
  # $1 : check-time, check-time = 0: wait infinitely;
  # $2 : # spaces to print before the message;
  # returns
  # * "0" if dsl is ready,
  # * "1" if not.
  {
    local CheckTime I Result

    CheckTime="$1"
      # pass
      # * if 0 == $CheckTime : 0
      # * else               : $CheckTime = $CheckTime + 1 
        if [ 0 != $CheckTime ]; then
            (( CheckTime++ ))
          fi

    string_Spaces $2 ;  echo -n  "wait for dsl : "

    Result=1                                       # still no dsl.
    for(( I = 1; I != CheckTime; I++ ));
      do
          if grep -q  "Line up"  /proc/net/atm/cxacru:0 ; then
              Result=0
              break
            fi

          echo -n  "."                      # 'entertainment'.
          sleep 1
        done

    echo ""
    return $Result
  }