diff options
| -rw-r--r-- | target/linux/bcm53xx/base-files/lib/upgrade/platform.sh | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh new file mode 100644 index 0000000000..de8d8835c3 --- /dev/null +++ b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh @@ -0,0 +1,118 @@ +PART_NAME=firmware + +# $(1): file to read magic from +# $(2): offset in bytes +get_magic_long_at() { + dd if="$1" skip=$2 bs=1 count=4 2>/dev/null | hexdump -v -e '1/1 "%02x"' +} + +platform_flash_type() { + # On NAND devices "rootfs" is UBI volume, so won't be find in /proc/mtd + grep -q "\"rootfs\"" /proc/mtd && { + echo "serial" + return + } + + echo "nand" +} + +platform_identify() { + local magic + + magic=$(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() { + [ "$#" -gt 1 ] && return 1 + + [ "$(platform_flash_type)" = "nand" ] && { + echo "Firmware upgrade on NAND devices is not implemented." + return 1 + } + + local file_type=$(platform_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: $magic" + echo "Flashing CyberTAN images in unsupported. Please use only .trx files." + return 1 + ;; + "trx") + return 0 + ;; + *) + echo "Invalid image type. Please use only .trx files" + return 1 + ;; + esac +} + +# Extract TRX and use stadard upgrade method +platform_do_upgrade_chk() { + local header_len=$((0x$(get_magic_long_at "$1" 4))) + local trx="/tmp/$1.trx" + + dd if="$1" of="$trx" bs=$header_len skip=1 + shift + platform_do_upgrade_trx "$trx" "$@" +} + +# Extract TRX and use stadard upgrade method +platform_do_upgrade_cybertan() { + local trx="/tmp/$1.trx" + + dd if="$1" of="$trx" bs=32 skip=1 + shift + platform_do_upgrade_trx "$trx" "$@" +} + +platform_do_upgrade_trx() { + local flash_type=$(platform_flash_type) + + case "$flash_type" in + "serial") + default_do_upgrade "$@" + ;; + "nand") + echo "Firmware upgrade on NAND devices is REALLY unsupported." + ;; + esac +} + +platform_do_upgrade() { + local file_type=$(platform_identify "$1") + + case "$file_type" in + "chk") platform_do_upgrade_chk "$ARGV";; + "cybertan") platform_do_upgrade_cybertan "$ARGV";; + *) platform_do_upgrade_trx "$ARGV";; + esac +} |