#!/bin/sh

BLOCKSIZE=512

echo "HTC\$WALLABY33" >sdheader.000
dd if=sdheader.000 of=sdheader.001 bs=1 count=13
dd if=/dev/zero of=sdheader.002 bs=512 count=1
cat sdheader.001 sdheader.002 >sdheader.003
dd if=sdheader.003 of=sdheader.bin bs=512 count=1
rm -f sdheader.000 sdheader.001 sdheader.002 sdheader.003

SIZE=`cat wallabypatch.bin | wc -c`
BLOCKCOUNT=$(( ( ( $SIZE + $BLOCKSIZE - 1 ) / $BLOCKSIZE ) + 1 ))
dd if=/dev/zero of=sdbody.000 bs=512 count=1
cat sdbody.000 wallabypatch.bin sdbody.000 > sdbody.001
dd if=sdbody.001 of=wallabypatch-sd.nb2 bs=512 count=$BLOCKCOUNT
cat sdheader.bin wallabypatch-sd.nb2 >wallabypatch-sd.img
rm -f sdbody.000 sdbody.001 sdheader.bin

echo "----------------------------------------------------"
echo " An SD blocksize aligned image has been created.    "
echo " The Wallaby header occupies block 0. Additional    "
echo " data can be stored in block 1 (currently not used) "
echo " Block 2 and up contain the execution code that     "
echo " will be loaded by the Wallaby Bootloader.          "
echo "----------------------------------------------------"
echo " FILES: wallabypatch-sd.img                         "
echo "        wallabypatch-sd.nb2                         "
echo "----------------------------------------------------"