add v2 support

v2_install/compile_image.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+DL_URL=$(wget --user-agent="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" -qO- https://support.wyze.com/hc/en-us/articles/360024852172-Release-Notes-Firmware | grep -Eo "(http|https)://[a-zA-Z0-9./?=_-]*" | grep /v2/ |   sort -t . -k2r,5 | grep demo | head -1)
+
+echo "create work directory"
+mkdir v2_ro
+
+echo "download latest firmware"
+wget $DL_URL -P ./v2_ro/
+
+echo "extracting firmware to workdir"
+unzip v2_ro/demo_4.9.8.1002.zip -d ./v2_ro/
+
+echo "create firmware dir"
+mkdir v2_ro/tmp_dir
+
+echo "unpack stock firmware"
+./fw_tool.sh unpack v2_ro/demo_4.9.8.1002.bin v2_ro/tmp_dir
+
+echo "replace kernel"
+cp v2_kernel.bin v2_ro/tmp_dir/kernel.bin
+
+echo "pack firmware with new kernel"
+./fw_tool.sh pack v2_ro/tmp_dir/ demo.bin
+
+echo "md5sum is:  " `md5sum demo.bin`
+rm -rf v2_ro
+
+echo "demo.bin ready.  Please copy demo.bin to your memory card"

v2_install/fw_tool.sh

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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