# attention: only zlib compression is allowed for the boot fs
define  Build/zyxel-buildkerneljffs
        rm -rf  $(KDIR_TMP)/zyxelnbg6716
        mkdir -p $(KDIR_TMP)/zyxelnbg6716/image/boot
        cp $@ $(KDIR_TMP)/zyxelnbg6716/image/boot/vmlinux.lzma.uImage
        $(STAGING_DIR_HOST)/bin/mkfs.jffs2 \
                --big-endian --squash-uids -v -e 128KiB -q -f -n -x lzma -x rtime \
                -o $@ \
                -d $(KDIR_TMP)/zyxelnbg6716/image
        rm -rf $(KDIR_TMP)/zyxelnbg6716
endef

define Build/zyxel-factory
	let \
		maxsize="$(subst k,* 1024,$(RAS_ROOTFS_SIZE))"; \
		let size="$$(stat -c%s $@)"; \
		if [ $$size -lt $$maxsize ]; then \
			$(STAGING_DIR_HOST)/bin/mkrasimage \
				-b $(RAS_BOARD) \
				-v $(RAS_VERSION) \
				-r $@ \
				-s $$maxsize \
				-o $@.new \
				-l 131072 \
			&& mv $@.new $@ ; \
		fi
endef

define Device/glinet_gl-ar300m-nand
  ATH_SOC := qca9531
  DEVICE_VENDOR := GL.iNet
  DEVICE_MODEL := GL-AR300M
  DEVICE_VARIANT := NAND
  DEVICE_PACKAGES := kmod-usb2 kmod-usb-storage kmod-usb-ledtrig-usbport
  KERNEL_SIZE := 2048k
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  VID_HDR_OFFSET := 512
  IMAGES += factory.ubi
  IMAGE/sysupgrade.bin := sysupgrade-tar
  IMAGE/factory.ubi := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
endef
TARGET_DEVICES += glinet_gl-ar300m-nand

define Device/zyxel_nbg6716
  ATH_SOC := qca9558
  DEVICE_VENDOR := ZyXEL
  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
  RAS_BOARD := NBG6716
  RAS_ROOTFS_SIZE := 29696k
  RAS_VERSION := "OpenWrt Linux-$(LINUX_VERSION)"
  KERNEL_SIZE := 4096k
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  KERNEL := kernel-bin | append-dtb | uImage none | \
	zyxel-buildkerneljffs | check-size 4096k
  IMAGES := sysupgrade.tar sysupgrade-4M-Kernel.bin factory.bin
  IMAGE/sysupgrade.tar/squashfs := append-rootfs | pad-to $$$${BLOCKSIZE} | sysupgrade-tar rootfs=$$$$@ | append-metadata
  IMAGE/sysupgrade-4M-Kernel.bin/squashfs := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | pad-to 263192576 | gzip
  IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | zyxel-factory
  UBINIZE_OPTS := -E 5
endef
TARGET_DEVICES += zyxel_nbg6716
DEVICE_VARS += RAS_ROOTFS_SIZE RAS_BOARD RAS_VERSION