#!/bin/bash

#set -x

for drive in sd{a,b,c,d,e,f}
do
        rdisk=$drive
        ## Warning: this will spin up the disk!
        ## TODO: just check for USB and or Vendor ID
        if dd if=/dev/$rdisk bs=512 skip=0 count=1 status=none | grep -q BENNVENN ; then
                echo Joey Jr Found at /dev/$rdisk

                case $1 in
                        ROM) 
                        echo Writing Rom... This may take minutes
                        dd if=$2 of=/dev/$rdisk bs=512 seek=37
                        ;;
                FLASH)
                        echo Writing Flash Save... 
                        dd if=$2 of=/dev/$rdisk bs=512 seek=65573
                        ;;
                SRAM)
                        echo Writing SRAM... 
                        dd if=$2 of=/dev/$rdisk bs=512 seek=65829
                        ;;
                EEPROM)
                        echo Writing EEPROM... 
                        dd if=$2 of=/dev/$rdisk bs=512 seek=66085
                        ;;
                ROMLIST)
                        dd if=$2 of=/dev/$rdisk bs=512 seek=66341 
                        echo ROMLIST Update Complete
                        ;;
                MODE)
                        echo -n $2 | dd of=/dev/$rdisk bs=512 cbs=512 seek=66725 conv=sync
                        echo Mode set to $2
                        sleep 1
                        if [ $2 = "UPDATE" ] 
                        then
                                dd if=$3 of=/dev/$rdisk bs=512 seek=66469 
                                echo Update Complete
                                break
                        fi
                        ;;
                esac
                break
        fi
done