wz_mini_hacks/v2_install/fw_tool.sh
2022-05-23 18:41:21 -07:00

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#!/bin/sh
#custom for V2
ACTION=$1
KERNEL_OFFSET=$((64))
ROOTFS_OFFSET=$((2097216))
DRIVER_OFFSET=$((5570624))
APPFS_OFFSET=$((6225984))
if [ "$ACTION" = "unpack" ]; then
DEMO_IN=$2
OUT_DIR=$3
dd if=${DEMO_IN} of=$OUT_DIR/kernel.bin skip=$KERNEL_OFFSET count=$(($ROOTFS_OFFSET-$KERNEL_OFFSET)) bs=1
md5sum $OUT_DIR/kernel.bin
dd if=${DEMO_IN} of=$OUT_DIR/rootfs.bin skip=$ROOTFS_OFFSET count=$(($DRIVER_OFFSET-$ROOTFS_OFFSET)) bs=1
md5sum $OUT_DIR/rootfs.bin
dd if=${DEMO_IN} of=$OUT_DIR/driver.bin skip=$DRIVER_OFFSET count=$(($APPFS_OFFSET-$DRIVER_OFFSET)) bs=1
md5sum $OUT_DIR/driver.bin
IMAGE_END=$(($(stat -c %s ${DEMO_IN})))
dd if=${DEMO_IN} of=$OUT_DIR/appfs.bin skip=$APPFS_OFFSET count=$(($IMAGE_END-$APPFS_OFFSET)) bs=1
md5sum $OUT_DIR/appfs.bin
elif [ "$ACTION" = "pack" ]; then
TMP_DIR=$2
DEMO_OUT=$3
#need to pad kernel is its smaller than the stock kernel size, 2097152 bytes
dd if=/dev/zero of=$TMP_DIR/kernel.bin bs=1 count=1 seek=2097151
cat $TMP_DIR/kernel.bin $TMP_DIR/rootfs.bin $TMP_DIR/driver.bin $TMP_DIR/appfs.bin > $TMP_DIR/flash.bin
mkimage -A MIPS -O linux -T firmware -C none -a 0 -e 0 -n jz_fw -d $TMP_DIR/flash.bin $DEMO_OUT
else
echo "Unknown action '$ACTION'"
fi