63 lines
1.3 KiB
Bash
63 lines
1.3 KiB
Bash
PART_NAME=firmware
|
|
|
|
# $(1): file to read magic from
|
|
# $(2): offset in bytes
|
|
get_magic_long_at() {
|
|
dd if="$1" skip=$2 bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
|
|
}
|
|
|
|
brcm47xx_identify() {
|
|
local magic
|
|
|
|
magic=$(get_magic_long "$1")
|
|
case "$magic" in
|
|
"48445230")
|
|
echo "trx"
|
|
return
|
|
;;
|
|
"2a23245e")
|
|
echo "chk"
|
|
return
|
|
;;
|
|
esac
|
|
|
|
magic=$(get_magic_long_at "$1" 14)
|
|
[ "$magic" = "55324e44" ] && {
|
|
echo "cybertan"
|
|
return
|
|
}
|
|
|
|
echo "unknown"
|
|
}
|
|
|
|
platform_check_image() {
|
|
[ "$#" -gt 1 ] && return 1
|
|
|
|
local file_type=$(brcm47xx_identify "$1")
|
|
|
|
case "$file_type" in
|
|
"chk")
|
|
local header_len=$((0x$(get_magic_long_at "$1" 4)))
|
|
local board_id_len=$(($header_len - 40))
|
|
local board_id=$(dd if="$1" skip=40 bs=1 count=$board_id_len 2>/dev/null | hexdump -v -e '1/1 "%c"')
|
|
echo "Found CHK image with device board_id $board_id"
|
|
echo "Flashing CHK images in unsupported. Please use only .trx files."
|
|
return 1
|
|
;;
|
|
"cybertan")
|
|
local magic=$(dd if="$1" bs=1 count=4 2>/dev/null | hexdump -v -e '1/1 "%c"')
|
|
echo "Found CyberTAN image with device magic: $magic"
|
|
echo "Flashing CyberTAN images in unsupported. Please use only .trx files."
|
|
return 1
|
|
;;
|
|
"trx")
|
|
return 0
|
|
;;
|
|
*)
|
|
echo "Invalid image type. Please use only .trx files"
|
|
return 1
|
|
;;
|
|
esac
|
|
}
|
|
|
|
# use default for platform_do_upgrade()
|