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|
#!/bin/bash
wic=$1
dev=$2
if [ $# -ne 2 ]; then
echo "$0 <wic> </dev/xxxxx>"
exit 1
fi
# -------------------------------------
BOARD_SUPPORTED="am572x stm32mp157c-d2"
board_to_block () {
local board=$1
case $board in
am572x)
echo "2 3"
;;
stm32mp157c-d2)
echo "7 8"
;;
*)
;;
esac
}
# -------------------------------------
loopdev=''
esp_size=''
esp_size_512=''
rootfs_size=''
rootfs_size_512=''
suffix=''
# mounts wic and returns loop device
mount_wic () {
local dev=$(sudo losetup --show -f -P "$wic")
echo "$dev"
}
# -------------------------------------
mount_and_get_size() {
loopdev=$(mount_wic)
[ -z "$loopdev" ] && echo "[ERROR] failed to mount WIC image (\"$wic\")" && exit 1
local esp="$loopdev"p1
local rootfs="$loopdev"p2
local esp_basename=$(basename $esp)
esp_size_512=$(cat /sys/class/block/$esp_basename/size)
esp_size=$(expr $esp_size_512 / 2048)
local rootfs_basename=$(basename $rootfs)
rootfs_size_512=$(cat /sys/class/block/$rootfs_basename/size)
rootfs_size=$(expr $rootfs_size_512 / 2048)
}
# -------------------------------------
cleanup () {
#echo "[DEBUG] sudo losetup -d $loopdev"
sudo losetup -d "$loopdev"
}
# -------------------------------------
device_suffix() {
local device=$1
case $device in
/dev/sd*)
# no need suffix
;;
/dev/mmc*)
# need suffix
suffix='p'
;;
*)
echo "[ERROR] This kind of device are not supported by the script (device = $device)"
exit 1
;;
esac
}
# -------------------------------------
# 1: device name
# 2: size of the partition to check on MB
_verify_device () {
local device=$1
local size=$2
local size_512=$3
if [ ! -e $device ]; then
echo "[ERROR]: The device \"$device\" doesn't exist"
cleanup
exit 1
fi
if $(grep -q $device /proc/mounts) ;then
echo "[ERROR]: The device \"$device\" are mounted on you PC, please umount it"
echo " before to flash it"
cleanup
exit 1
fi
dev_basename=$(basename $device)
dev_size_512=$(cat /sys/class/block/$dev_basename/size)
dev_size=$(expr $dev_size_512 / 2048)
if [ "$dev_size_512" -lt "$size_512" ];then
echo "[ERROR] The parition size of parition \"$device\" are too small"
echo "[ERROR] "$size"MB minimum are requested for this parition [only "$dev_size"MB are available]"
cleanup
exit 1
fi
}
# -------------------------------------
verify_devices () {
local board=$1
local device=$2
# boot device
boot_index=$(board_to_block "$board" | awk -F ' ' '{ print $1 }')
boot_device="$device$suffix$boot_index"
_verify_device $boot_device $esp_size $esp_size_512
# root device
root_index=$(board_to_block "$board" | awk -F ' ' '{ print $2 }')
root_device="$device$suffix$root_index"
_verify_device $root_device $rootfs_size $rootfs_size_512
}
# -------------------------------------
write_files () {
local device=$1
local esp="$loopdev"p1
local rootfs="$loopdev"p2
local esp_part=$(board_to_block "$board" | awk -F ' ' '{ print $1 }')
local rootfs_part=$(board_to_block "$board" | awk -F ' ' '{ print $2 }')
esp_part="$dev""$suffix""$esp_part"
rootfs_part="$dev""$suffix""$rootfs_part"
sudo dd if="$esp" of="$esp_part" bs=8M conv=fdatasync status=progress
[ $? -ne 0 ] && echo "[ERROR] Failed to write ESP partition" && exit 1
sudo dd if="$rootfs" of="$rootfs_part" bs=8M conv=fdatasync status=progress
[ $? -ne 0 ] && echo "[ERROR] Failed to write rootfs partition" && exit 1
}
# -------------------------------------
_choice_shell() {
local choice_name=$1
local choice_list=$2
local default_choice=$3
#format list to have display aligned on column with '-' separation between name and description
local options=$(echo "${choice_list}" | tr ' ' '\n')
#change separator from 'space' to 'end of line' for 'select' command
old_IFS=$IFS
IFS=$'\n'
local i=1
unset LAUNCH_MENU_CHOICES
for opt in $options; do
printf "%3.3s. %s\n" $i $opt
LAUNCH_MENU_CHOICES=(${LAUNCH_MENU_CHOICES[@]} $opt)
i=$(($i+1))
done
IFS=$old_IFS
# Item selection from list
local selection=""
while [ -z "$selection" ]; do
echo -n "Which one would you like? [${default_choice}] "
read -r -t 60 answer
# Check that user has answered before timeout, else break
[ "$?" -gt "128" ] && break
if [ -z "$answer" ] && [ -n "$default_choice" ] ; then
selection=${default_choice}
break
fi
if [[ $answer =~ ^[0-9]+$ ]]; then
if [ $answer -gt 0 ] && [ $answer -le ${#LAUNCH_MENU_CHOICES[@]} ]; then
selection=${LAUNCH_MENU_CHOICES[$(($answer-1))]}
break
fi
fi
echo "Invalid choice: $answer"
echo "Please use numeric value between '1' and '$(echo "$options" | wc -l)'"
done
eval ${choice_name}=$(echo $selection | cut -d' ' -f1)
}
# -------------------------------------
trap cleanup SIGHUP SIGINT SIGTERM
# choice the board
_choice_shell board "$BOARD_SUPPORTED" "stm32mp157c-d2"
echo "BOARD selected : $board"
if [ ! -f "$wic" ];then
echo "[ERROR] wic file doesn't exist, please indicate a correct path for wic file"
exit 1
fi
# get device suffix
device_suffix $dev
mount_and_get_size
verify_devices "$board" "$dev"
write_files $dev
cleanup
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