define Build/dongwon-header
	head -c 4 $@ > $@.tmp
	head -c 8 /dev/zero >> $@.tmp
	tail -c +9 $@ >> $@.tmp
	( \
		header_crc="$$(head -c 68 $@.tmp | gzip -c | \
			tail -c 8 | od -An -N4 -tx4 --endian little | tr -d ' \n')"; \
		printf "$$(echo $$header_crc | sed 's/../\\x&/g')" | \
			dd of=$@.tmp bs=4 count=1 seek=1 conv=notrunc \
	)
	mv $@.tmp $@
endef

define Build/meraki-header
        -$(STAGING_DIR_HOST)/bin/mkmerakifw \
                -B $(1) -s \
                -i $@ \
                -o $@.new
        @mv $@.new $@
endef

# attention: only zlib compression is allowed for the boot fs
define Build/zyxel-buildkerneljffs
	mkdir -p $@.tmp/boot
	cp $@ $@.tmp/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 $@.tmp
	rm -rf $@.tmp
endef

define Build/zyxel-factory
	let \
		maxsize="$(call exp_units,$(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/8dev_rambutan
  SOC := qca9557
  DEVICE_VENDOR := 8devices
  DEVICE_MODEL := Rambutan
  DEVICE_PACKAGES := kmod-usb2
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  KERNEL_SIZE := 4096k
  KERNEL_IN_UBI := 1
  IMAGES := factory.bin sysupgrade.tar
  IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
  IMAGE/factory.bin := append-ubi
endef
TARGET_DEVICES += 8dev_rambutan

define Device/aerohive_hiveap-121
  SOC := ar9344
  DEVICE_VENDOR := Aerohive
  DEVICE_MODEL := HiveAP 121
  DEVICE_PACKAGES := kmod-usb2
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  IMAGE_SIZE := 116m
  KERNEL_SIZE := 5120k
  UBINIZE_OPTS := -E 5
  SUPPORTED_DEVICES += hiveap-121
  IMAGES += factory.bin
  IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
	check-size
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
endef
TARGET_DEVICES += aerohive_hiveap-121

define Device/domywifi_dw33d
  SOC := qca9558
  DEVICE_VENDOR := DomyWifi
  DEVICE_MODEL := DW33D
  DEVICE_PACKAGES := kmod-usb2 kmod-usb-storage kmod-usb-ledtrig-usbport \
	kmod-ath10k-ct ath10k-firmware-qca988x-ct
  KERNEL_SIZE := 5120k
  IMAGE_SIZE := 98304k
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  UBINIZE_OPTS := -E 5
  IMAGES += factory.bin
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
  IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
	check-size
endef
TARGET_DEVICES += domywifi_dw33d

define Device/dongwon_dw02-412h
  SOC := qca9557
  DEVICE_VENDOR := Dongwon T&I
  DEVICE_MODEL := DW02-412H
  DEVICE_ALT0_VENDOR := KT
  DEVICE_ALT0_MODEL := GiGA WiFi home
  DEVICE_PACKAGES := kmod-usb2 kmod-ath10k-ct ath10k-firmware-qca988x-ct
  KERNEL_SIZE := 8192k
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  KERNEL := $$(KERNEL) | dongwon-header
  KERNEL_INITRAMFS := $$(KERNEL)
  UBINIZE_OPTS := -E 5
  IMAGES += factory.img
  IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
	check-size
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
endef

define Device/dongwon_dw02-412h-64m
  $(Device/dongwon_dw02-412h)
  DEVICE_VARIANT := (64M)
  DEVICE_ALT0_VARIANT := (64M)
  IMAGE_SIZE := 49152k
endef
TARGET_DEVICES += dongwon_dw02-412h-64m

define Device/dongwon_dw02-412h-128m
  $(Device/dongwon_dw02-412h)
  DEVICE_VARIANT := (128M)
  DEVICE_ALT0_VARIANT := (128M)
  IMAGE_SIZE := 114688k
endef
TARGET_DEVICES += dongwon_dw02-412h-128m

define Device/glinet_gl-ar300m-common-nand
  SOC := qca9531
  DEVICE_VENDOR := GL.iNet
  DEVICE_MODEL := GL-AR300M
  DEVICE_PACKAGES := kmod-usb2
  KERNEL_SIZE := 4096k
  IMAGE_SIZE := 16000k
  PAGESIZE := 2048
  VID_HDR_OFFSET := 2048
endef

define Device/glinet_gl-ar300m-nand
  $(Device/glinet_gl-ar300m-common-nand)
  DEVICE_VARIANT := NAND
  BLOCKSIZE := 128k
  IMAGES += factory.img
  IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
  SUPPORTED_DEVICES += glinet,gl-ar300m-nor
endef
TARGET_DEVICES += glinet_gl-ar300m-nand

define Device/glinet_gl-ar300m-nor
  $(Device/glinet_gl-ar300m-common-nand)
  DEVICE_VARIANT := NOR
  SUPPORTED_DEVICES += glinet,gl-ar300m-nand gl-ar300m
endef
TARGET_DEVICES += glinet_gl-ar300m-nor

define Device/glinet_gl-ar750s-common
  SOC := qca9563
  DEVICE_VENDOR := GL.iNet
  DEVICE_MODEL := GL-AR750S
  DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9887-ct kmod-usb2 \
	kmod-usb-storage block-mount
  IMAGE_SIZE := 16000k
endef

define Device/glinet_gl-ar750s-nor-nand
  $(Device/glinet_gl-ar750s-common)
  DEVICE_VARIANT := NOR/NAND
  KERNEL_SIZE := 4096k
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
  SUPPORTED_DEVICES += glinet,gl-ar750s-nor
endef
TARGET_DEVICES += glinet_gl-ar750s-nor-nand

define Device/glinet_gl-ar750s-nor
  $(Device/glinet_gl-ar750s-common)
  DEVICE_VARIANT := NOR
  SUPPORTED_DEVICES += gl-ar750s glinet,gl-ar750s glinet,gl-ar750s-nor-nand
endef
TARGET_DEVICES += glinet_gl-ar750s-nor

define Device/glinet_gl-e750
  SOC := qca9531
  DEVICE_VENDOR := GL.iNet
  DEVICE_MODEL := GL-E750
  DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9887-ct kmod-usb2 \
	kmod-usb-net-qmi-wwan kmod-usb-serial-option uqmi
  SUPPORTED_DEVICES += gl-e750
  KERNEL_SIZE := 4096k
  IMAGE_SIZE := 131072k
  PAGESIZE := 2048
  VID_HDR_OFFSET := 2048
  BLOCKSIZE := 128k
  IMAGES += factory.img
  IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
endef
TARGET_DEVICES += glinet_gl-e750

define Device/glinet_gl-s200-common
  SOC := qca9531
  DEVICE_VENDOR := GL.iNet
  DEVICE_MODEL := GL-S200
  DEVICE_PACKAGES := kmod-usb2 kmod-usb-serial-ch341
  SUPPORTED_DEVICES += gl-s200 glinet,gl-s200
endef

define Device/glinet_gl-s200-nor
  $(Device/glinet_gl-s200-common)
  DEVICE_VARIANT := NOR
  IMAGE_SIZE := 16000k
endef
TARGET_DEVICES += glinet_gl-s200-nor

define Device/glinet_gl-s200-nor-nand
  $(Device/glinet_gl-s200-common)
  DEVICE_VARIANT := NOR/NAND
  KERNEL_SIZE := 4096k
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  VID_HDR_OFFSET := 2048
  IMAGES += factory.img
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
  IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
  SUPPORTED_DEVICES += gl-s200 glinet,gl-s200
endef
TARGET_DEVICES += glinet_gl-s200-nor-nand

define Device/glinet_gl-xe300
  SOC := qca9531
  DEVICE_VENDOR := GL.iNet
  DEVICE_MODEL := GL-XE300
  DEVICE_PACKAGES := kmod-usb2 block-mount kmod-usb-serial-ch341 \
	kmod-usb-serial-option kmod-usb-net-qmi-wwan uqmi
  KERNEL_SIZE := 4096k
  IMAGE_SIZE := 131072k
  PAGESIZE := 2048
  VID_HDR_OFFSET := 2048
  BLOCKSIZE := 128k
  IMAGES += factory.img
  IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
endef
TARGET_DEVICES += glinet_gl-xe300

define Device/glinet_gl-x1200-common
  SOC := qca9563
  DEVICE_VENDOR := GL.iNet
  DEVICE_MODEL := GL-X1200
  DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9888-ct-htt kmod-usb2 \
	kmod-usb-storage block-mount kmod-usb-net-qmi-wwan uqmi
  IMAGE_SIZE := 16000k
endef

define Device/glinet_gl-x1200-nor-nand
  $(Device/glinet_gl-x1200-common)
  DEVICE_VARIANT := NOR/NAND
  KERNEL_SIZE := 4096k
  IMAGE_SIZE := 131072k
  PAGESIZE := 2048
  VID_HDR_OFFSET := 2048
  BLOCKSIZE := 128k
  IMAGES += factory.img
  IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
endef
TARGET_DEVICES += glinet_gl-x1200-nor-nand

define Device/glinet_gl-x1200-nor
  $(Device/glinet_gl-x1200-common)
  DEVICE_VARIANT := NOR
endef
TARGET_DEVICES += glinet_gl-x1200-nor

define Device/linksys_ea4500-v3
  SOC := qca9558
  DEVICE_COMPAT_VERSION := 1.1
  DEVICE_COMPAT_MESSAGE := Partition table has been changed. Please \
	install kmod-mtd-rw and erase mtd8 (syscfg) before upgrade \
	to keep configures, or forcibly flash factory image to mtd5 \
	(firmware) partition with mtd tool to discard configures but \
	claim additional space immediately.
  DEVICE_VENDOR := Linksys
  DEVICE_MODEL := EA4500
  DEVICE_VARIANT := v3
  DEVICE_PACKAGES := kmod-usb2
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  KERNEL_SIZE := 4096k
  IMAGE_SIZE := 128256k
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
  LINKSYS_HWNAME := EA4500V3
  IMAGES += factory.img
  IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | \
	append-ubi | check-size | linksys-image type=$$$$(LINKSYS_HWNAME)
  UBINIZE_OPTS := -E 5
endef
TARGET_DEVICES += linksys_ea4500-v3

define Device/meraki_mr18
  SOC := qca9557
  DEVICE_VENDOR := Meraki
  DEVICE_MODEL := MR18
  DEVICE_PACKAGES := kmod-leds-uleds kmod-spi-gpio nu801
  KERNEL_SIZE := 8m
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  LOADER_TYPE := bin
  KERNEL := kernel-bin | append-dtb | lzma | loader-kernel | meraki-header MR18
# Initramfs-build fails due to size issues
# KERNEL_INITRAMFS := $$(KERNEL)
  KERNEL_INITRAMFS :=
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
  SUPPORTED_DEVICES += mr18
endef
TARGET_DEVICES += meraki_mr18

# fake rootfs is mandatory, pad-offset 129 equals (2 * uimage_header + '\0')
define Device/netgear_ath79_nand
  DEVICE_VENDOR := NETGEAR
  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport
  KERNEL_SIZE := 4096k
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  IMAGE_SIZE := 25600k
  KERNEL := kernel-bin | append-dtb | lzma | \
	pad-offset $$(BLOCKSIZE) 129 | uImage lzma | pad-extra 1 | \
	append-uImage-fakehdr filesystem $$(UIMAGE_MAGIC)
  IMAGES := sysupgrade.bin factory.img
  IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | \
	append-ubi | check-size | netgear-dni
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
  UBINIZE_OPTS := -E 5
endef

define Device/netgear_pgzng1
  SOC := ar9344
  DEVICE_MODEL := PGZNG1
  DEVICE_VENDOR := NETGEAR
  DEVICE_ALT0_MODEL := Pulse Gateway
  DEVICE_ALT0_VENDOR := ADT
  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-i2c-gpio \
    kmod-leds-pca955x kmod-rtc-isl1208 kmod-spi-dev
  KERNEL_SIZE := 5120k
  IMAGE_SIZE := 83968k
  PAGESIZE := 2048
  BLOCKSIZE := 128k
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
endef
TARGET_DEVICES += netgear_pgzng1

define Device/netgear_r6100
  SOC := ar9344
  DEVICE_MODEL := R6100
  UIMAGE_MAGIC := 0x36303030
  NETGEAR_BOARD_ID := R6100
  NETGEAR_HW_ID := 29764434+0+128+128+2x2+2x2
  $(Device/netgear_ath79_nand)
  DEVICE_PACKAGES += kmod-ath10k-ct ath10k-firmware-qca988x-ct
endef
TARGET_DEVICES += netgear_r6100

define Device/netgear_wndr3700-v4
  SOC := ar9344
  DEVICE_MODEL := WNDR3700
  DEVICE_VARIANT := v4
  UIMAGE_MAGIC := 0x33373033
  NETGEAR_BOARD_ID := WNDR3700v4
  NETGEAR_HW_ID := 29763948+128+128
  $(Device/netgear_ath79_nand)
endef
TARGET_DEVICES += netgear_wndr3700-v4

define Device/netgear_wndr4300
  SOC := ar9344
  DEVICE_MODEL := WNDR4300
  UIMAGE_MAGIC := 0x33373033
  NETGEAR_BOARD_ID := WNDR4300
  NETGEAR_HW_ID := 29763948+0+128+128+2x2+3x3
  $(Device/netgear_ath79_nand)
endef
TARGET_DEVICES += netgear_wndr4300

define Device/netgear_wndr4300sw
  SOC := ar9344
  DEVICE_MODEL := WNDR4300SW
  UIMAGE_MAGIC := 0x33373033
  NETGEAR_BOARD_ID := WNDR4300SW
  NETGEAR_HW_ID := 29763948+0+128+128+2x2+3x3
  $(Device/netgear_ath79_nand)
endef
TARGET_DEVICES += netgear_wndr4300sw

define Device/netgear_wndr4300tn
  SOC := ar9344
  DEVICE_MODEL := WNDR4300TN
  UIMAGE_MAGIC := 0x33373033
  NETGEAR_BOARD_ID := WNDR4300TN
  NETGEAR_HW_ID := 29763948+0+128+128+2x2+3x3
  $(Device/netgear_ath79_nand)
endef
TARGET_DEVICES += netgear_wndr4300tn

define Device/netgear_wndr4300-v2
  SOC := qca9563
  DEVICE_COMPAT_VERSION := 1.1
  DEVICE_COMPAT_MESSAGE := Partition table has been changed to fix the \
	first reboot issue. Please reflash factory image with nmrp or tftp.
  DEVICE_MODEL := WNDR4300
  DEVICE_VARIANT := v2
  UIMAGE_MAGIC := 0x27051956
  NETGEAR_BOARD_ID := WNDR4500series
  NETGEAR_HW_ID := 29764821+2+128+128+3x3+3x3+5508012175
  $(Device/netgear_ath79_nand)
endef
TARGET_DEVICES += netgear_wndr4300-v2

define Device/netgear_wndr4500-v3
  SOC := qca9563
  DEVICE_COMPAT_VERSION := 1.1
  DEVICE_COMPAT_MESSAGE := Partition table has been changed to fix the \
	first reboot issue. Please reflash factory image with nmrp or tftp.
  DEVICE_MODEL := WNDR4500
  DEVICE_VARIANT := v3
  UIMAGE_MAGIC := 0x27051956
  NETGEAR_BOARD_ID := WNDR4500series
  NETGEAR_HW_ID := 29764821+2+128+128+3x3+3x3+5508012173
  $(Device/netgear_ath79_nand)
endef
TARGET_DEVICES += netgear_wndr4500-v3

define Device/zte_mf28x_common
  SOC := qca9563
  DEVICE_VENDOR := ZTE
  DEVICE_PACKAGES := kmod-usb2 kmod-ath10k-ct
  BLOCKSIZE := 128k
  PAGESIZE := 2048
  KERNEL_SIZE := 4096k
  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
endef

define Device/zte_mf281
  $(Device/zte_mf28x_common)
  DEVICE_MODEL := MF281
  KERNEL_SIZE := 6144k
  IMAGE_SIZE := 29696k
  IMAGES += factory.bin
  IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
	check-size
  DEVICE_PACKAGES += ath10k-firmware-qca9888-ct kmod-usb-net-rndis \
	kmod-usb-acm comgt-ncm
endef
TARGET_DEVICES += zte_mf281

define Device/zte_mf282
  $(Device/zte_mf28x_common)
  DEVICE_MODEL := MF282
  DEVICE_PACKAGES += ath10k-firmware-qca988x-ct kmod-usb-net-qmi-wwan \
	kmod-usb-serial-option uqmi
endef
TARGET_DEVICES += zte_mf282

define Device/zte_mf286
  $(Device/zte_mf28x_common)
  DEVICE_MODEL := MF286
  DEVICE_PACKAGES += ath10k-firmware-qca988x-ct ath10k-firmware-qca9888-ct \
	kmod-usb-net-qmi-wwan kmod-usb-serial-option uqmi
endef
TARGET_DEVICES += zte_mf286

define Device/zte_mf286a
  $(Device/zte_mf28x_common)
  DEVICE_MODEL := MF286A
  DEVICE_PACKAGES += ath10k-firmware-qca9888-ct kmod-usb-net-qmi-wwan \
	kmod-usb-serial-option uqmi
endef
TARGET_DEVICES += zte_mf286a

define Device/zte_mf286r
  $(Device/zte_mf28x_common)
  DEVICE_MODEL := MF286R
  DEVICE_PACKAGES += ath10k-firmware-qca9888-ct kmod-usb-net-rndis kmod-usb-acm \
	comgt-ncm
endef
TARGET_DEVICES += zte_mf286r

define Device/zyxel_nbg6716
  SOC := qca9558
  DEVICE_VENDOR := Zyxel
  DEVICE_MODEL := NBG6716
  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
  LOADER_TYPE := bin
  KERNEL := kernel-bin | append-dtb | lzma | loader-kernel | 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

define Device/zyxel_emg2926_q10a
  $(Device/zyxel_nbg6716)
  DEVICE_MODEL := EMG2926-Q10A
  RAS_BOARD := AAVK-EMG2926Q10A
endef
TARGET_DEVICES += zyxel_emg2926_q10a