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# Define the 'qemu-sd' conversion type
#
# This conversion type pads any image to the 512K boundary to ensure that the
# image file can be used directly with QEMU's SD emulation which requires the
# block device to match that of valid SD card sizes (which are multiples of
# 512K).
CONVERSIONTYPES:append = " qemu-sd qemu-sd-fatimg"
CONVERSION_CMD:qemu-sd () {
cp ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.qemu-sd
# Get the wic.qemu-sd file size
file_size=`stat -c '%s' ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.qemu-sd`
powerof2=1
file_size=${file_size%.*}
# Get the next power of 2 value for the image size value
while [ ${powerof2} -lt ${file_size} ]; do
powerof2=$(expr $powerof2 \* 2)
done
# Resize the image using qemu-img
qemu-img resize -f raw ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.qemu-sd ${powerof2}
}
BOOT_VOLUME_ID ?= "BOOT"
BOOT_SPACE ?= "1047552"
IMAGE_ALIGNMENT ?= "1024"
# Create SD image in case of INITRAMFS_IMAGE set due to circular dependencies.
# This creates FAT partitioned SD image containing boot.bin,boot.scr and rootfs.cpio.gz.u-boot files.
# This is a workaround fix until we fix the circular dependencies
# Usage: IMAGE_FSTYPES:append = " cpio.gz.u-boot.qemu-sd-fatimg"
CONVERSION_CMD:qemu-sd-fatimg () {
QEMU_IMG="${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.qemu-sd-fatimg"
BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE} + ${IMAGE_ALIGNMENT} - 1)
BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE_ALIGNED} - ${BOOT_SPACE_ALIGNED} % ${IMAGE_ALIGNMENT})
QEMUIMG_SIZE=$(expr ${IMAGE_ALIGNMENT} + ${BOOT_SPACE_ALIGNED})
dd if=/dev/zero of=${QEMU_IMG} bs=1024 count=0 seek=${QEMUIMG_SIZE}
parted -s ${QEMU_IMG} mklabel msdos
parted -s ${QEMU_IMG} unit KiB mkpart primary fat32 ${IMAGE_ALIGNMENT} $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ALIGNMENT} \- 1)
parted -s ${QEMU_IMG} set 1 boot on
parted ${QEMU_IMG} print
BOOT_BLOCKS=$(LC_ALL=C parted -s ${QEMU_IMG} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
rm -f ${WORKDIR}/${BOOT_VOLUME_ID}.img
mkfs.vfat -n "${BOOT_VOLUME_ID}" -S 512 -C ${WORKDIR}/${BOOT_VOLUME_ID}.img $BOOT_BLOCKS
if [ -e ${DEPLOY_DIR_IMAGE}/boot.bin ]; then
mcopy -i ${WORKDIR}/${BOOT_VOLUME_ID}.img -s ${DEPLOY_DIR_IMAGE}/boot.bin ::/
fi
if [ -e ${DEPLOY_DIR_IMAGE}/boot.scr ]; then
mcopy -i ${WORKDIR}/${BOOT_VOLUME_ID}.img -s ${DEPLOY_DIR_IMAGE}/boot.scr ::/
fi
if [ ${INITRAMFS_IMAGE} = ${IMAGE_BASENAME} ] && [ x"${INITRAMFS_IMAGE_BUNDLE}" != "x1" ]; then
mcopy -i ${WORKDIR}/${BOOT_VOLUME_ID}.img -s ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ::rootfs.cpio.gz.u-boot
fi
dd if=${WORKDIR}/${BOOT_VOLUME_ID}.img of=${QEMU_IMG} conv=notrunc seek=1 bs=$(expr ${IMAGE_ALIGNMENT} \* 1024)
}
CONVERSION_DEPENDS_qemu-sd = "qemu-system-native"
CONVERSION_DEPENDS_qemu-sd-fatimg = "mtools-native:do_populate_sysroot \
dosfstools-native:do_populate_sysroot \
parted-native:do_populate_sysroot"
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