import otime
import serial
from time import sleep

def dump_all(port):
    mtr = serial.Serial(port, baudrate=9600, timeout=40)
    # dump all command
    mtr.write(b'/SA')
    card_dumps = []
    sleep(0.4)
    while mtr.in_waiting > 0:
        mtr.read_until(expected=b'\xFF\xFF\xFF\xFF')
        size = mtr.read(size=1)
        if size == b'\xe6':
            meat = mtr.read(229)
            full = b'\xFF\xFF\xFF\xFF' + size + meat
            card_r = otime.CardDump.from_mtr_bytes(full)
            card_dumps.append(card_r)
    return card_dumps