###############################################################
# Helper script: /boot/platform/aarch64/helper/pkg-kernel-rpi
# Purpose......: Copy Linux Kernel assets on to the RPi's
#                Hardware Model Boot Ware partition.
#                This enables seamless Kernel package upgrades
#                for users who opt to use the RPi's native
#                Boot Loader.
# Called from..: Slackware Kernel package's post installation
#                script: /install/doinst.sh
# Author.......: Stuart Winter <mozes@slackware.com>
# Date.........: 21-Dec-2021
###############################################################

HWM_MNTPT=/boot/platform/hwm_bw
# If the Hardware Model Boot Ware partition isn't mounted,
# there's nothing to do on this Hardware Model.
mountpoint -q ${HWM_MNTPT} || exit 0

# Determine the Hardware Model:
HWM=$( strings /proc/device-tree/model 2>/dev/null )

# Hardware Model specific settings:
#case "${HWM}" in
#   "Raspberry Pi 4"*)
#esac

# Copy the assets only upon Raspberry Pi Hardware Models.
# This may be expanded in future to handle other RPi's, assuming
# the same non-standard boot process.
case "${HWM}" in
   "Raspberry Pi"*)
   # Notes:
   #       [1] The use of absolute paths works here because the
   #           Slackware Installer has /boot symlinked to within the OS
   #           mount point.  The path is also correct within a chroot.
   #       [2] The U-Boot Boot Loader, Linux Kernel and OS InitRD file
   #           names are prefixed with 'slk_'.  This is simply to
   #           easily distinguish them from other assets.
   # Copy the Linux Kernel image:
   cp -fL /boot/Image-armv8 ${HWM_MNTPT}/slk_image-armv8
   # Slackware OS InitRD (Operating System Initial RAM Disk):
   cp -fL /boot/initrd-armv8 ${HWM_MNTPT}/slk_initrd-armv8
   # Copy the Device Tree Blobs (DTBs):
   cp -dpRfL /boot/dtb/broadcom/* ${HWM_MNTPT}/
   ;;
esac