#!/bin/sh
#
# GSM manipulating script
#
#

#initialise gsm
#
prepare_gsm(){
    load_fpga /lib/firmware/fpga/apf51_gsm_gps_firmware.bin
    modprobe irq_ocore
    modprobe 8250
    modprobe twin_uarts_irq_mng
    modprobe twin_uarts_16750
    # bring GSM out of reset:
    modprobe wm831x-gpio


    echo 245 > /sys/class/gpio/export
    echo out > /sys/class/gpio/gpio245/direction
    echo 1 > /sys/class/gpio/gpio245/value
    ls -al /dev/ttyS*
    GSM_DEVICE=/dev/ttyS0
    GSM_SPEED=115200
}

check_number(){
    DIGITS=`echo -n "$PHONE_NUMBER" | wc -c`
    if [ "$DIGITS" != 10 ]; then
    echo "Bad phone number format ($PHONE_NUMBER)"
    exit 1;
    fi
}



#envoit des commandes AT
send_at_cmd()
{
    echo -e -n "$1\015" > $GSM_DEVICE
    sleep 1
}


main(){
    i=0


    if [ $# -eq 0 ]; then
    exit
    else
    choix=$1

    fi



    while [ -e sms.lock ] ; do
    i=$((i+1))
    sleep 1
    if [ $i -eq 9 ]; then
        exit 2;
    fi
    done

    touch sms.lock

    prepare_gsm 2>>/dev/null >>/dev/null

    stty -F $GSM_DEVICE raw -echo -echoe -echok $GSM_SPEED 2>>/dev/null >>/dev/null

    if [ "$?" != 0 ]; then
    echo "Failed to setup serial port ($GSM_DEVICE)"
    rm sms.lock
    exit 1;

    fi

    send_at_cmd ATE0    # ECHO OFF

    case $choix in
    0)
    cat $GSM_DEVICE >./result&
    sleep 1

    #echo " --- Checking signal quality (should be better than 12/99):"
    send_at_cmd AT+CSQ
    kill $!
    grep CSQ ./result
    ;;

    1)
        PHONE_NUMBER=5142663570
    check_number

    /usr/sbin/chat ABORT 'NO CARRIER' ECHO ON '' AT OK ATD"$PHONE_NUMBER"\; OK > $GSM_DEVICE < $GSM_DEVICE
    sleep 6
    send_at_cmd ATH
    ;;


    2)


    if [ $# -ge 3 ]; then
      PHONE_NUMBER=$2

      shift;
      shift;

      MESSAGE=$*

    else
        echo $#
        exit 1;
    fi




    check_number

    #sms sending mode
    send_at_cmd AT+CMGF=1

    send_at_cmd AT+CSCS="GSM"

    send_at_cmd "AT+CMGS=\"$PHONE_NUMBER\""

    send_at_cmd "$MESSAGE"

    send_at_cmd "\032"

    ;;

    *) echo "not def"
    ;;
    esac;

    send_at_cmd ATE1    # ECHO ON

    rm sms.lock
}

main $*