ifeq ($(ROOTDIR),)
$(error $$ROOTDIR IS NOT DEFINED -- don\'t forget to source setup.sh)
endif

include $(ROOTDIR)/build/preamble.mk

sdcard: $(PRODUCT_OUT)/sdcard.img
sdcard-xz: $(PRODUCT_OUT)/sdcard.img.xz

$(PRODUCT_OUT)/sdcard.img: $(PRODUCT_OUT)/rootfs.img $(PRODUCT_OUT)/boot.img $(PRODUCT_OUT)/u-boot.imx
	fallocate -l 4G $(PRODUCT_OUT)/sdcard.img
	parted -s $(PRODUCT_OUT)/sdcard.img mklabel msdos
	parted -s $(PRODUCT_OUT)/sdcard.img unit MiB mkpart primary fat32 8 40
	parted -s $(PRODUCT_OUT)/sdcard.img unit MiB mkpart primary 40 4095
	dd if=$(PRODUCT_OUT)/u-boot.imx of=$(PRODUCT_OUT)/sdcard.img conv=notrunc seek=66 bs=512
	dd if=$(PRODUCT_OUT)/boot.img of=$(PRODUCT_OUT)/sdcard.img conv=notrunc seek=8 bs=1M
	dd if=$(PRODUCT_OUT)/rootfs.img of=$(PRODUCT_OUT)/sdcard.img conv=notrunc seek=40 bs=1M

$(PRODUCT_OUT)/sdcard.img.xz: $(PRODUCT_OUT)/sdcard.img
	xz -k -T0 -0 $(PRODUCT_OUT)/sdcard.img

targets::
	@echo "sdcard     - generate a flashable sdcard image"

clean::
	rm -f $(PRODUCT_OUT)/sdcard.img $(PRODUCT_OUT)/sdcard.img.xz

.PHONY:: sdcard sdcard-xz