ccid-nfc.py

import usb
import time

dh = None

for bus in usb.busses():
    for dev in bus.devices:
        if (dev.idVendor, dev.idProduct) == (0x072f, 0x2200):
            print "trying reader at usb port {0}:{1}"\
                .format(bus.dirname, dev.filename)

            if False:
                print "Device:", dev.filename
                print "  Device class:",dev.deviceClass
                print "  Device sub class:",dev.deviceSubClass
                print "  Device protocol:",dev.deviceProtocol
                print "  Max packet size:",dev.maxPacketSize
                print "  idVendor: %d (0x%04x)" % (dev.idVendor, dev.idVendor)
                print "  idProduct: %d (0x%04x)" % (dev.idProduct, dev.idProduct)
                print "  Device Version:",dev.deviceVersion
                for config in dev.configurations:
                    print "  Configuration:", config.value
                    print "    Total length:", config.totalLength
                    print "    selfPowered:", config.selfPowered
                    print "    remoteWakeup:", config.remoteWakeup
                    print "    maxPower:", config.maxPower
                    for intf in config.interfaces:
                        print "    Interface:",intf[0].interfaceNumber
                        for alt in intf:
                            print "    Alternate Setting:",alt.alternateSetting
                            print "      Interface class:",alt.interfaceClass
                            print "      Interface sub class:",alt.interfaceSubClass
                            print "      Interface protocol:",alt.interfaceProtocol
                            for ep in alt.endpoints:
                                print "      Endpoint:",hex(ep.address)
                                print "        Type:",ep.type
                                print "        Max packet size:",ep.maxPacketSize
                                print "        Interval:",ep.interval

            configuration = dev.configurations[0]
            interface = configuration.interfaces[0]
            for ep in interface[0].endpoints:
                if ep.type == usb.ENDPOINT_TYPE_BULK:
                    if ep.address & usb.ENDPOINT_DIR_MASK == usb.ENDPOINT_IN:
                        usb_inp = ep.address
                    else:
                        usb_out = ep.address

            dh = dev.open()
            dh.reset()
            #dh.setConfiguration(configuration)
            dh.claimInterface(interface[0])
            dh.setAltInterface(interface[0])
            dh.getDescriptor(usb.DT_CONFIG, 0, 512)
            #try: dh.interruptRead(0x81, 100, 5000)
            #except: pass

if dh is not None:
    seq = -1
    #get_parameters = bytearray("\x6C\x00\x00\x00\x00\x00\x00\x00\x00\x00")
    #dh.bulkWrite(usb_out, get_parameters, 100)

    if 1:
        # CCID GetSlotStatus
        seq = (seq + 1) % 256
        cmd = bytearray("\x65\x00\x00\x00\x00\x00"+chr(seq)+"\x00\x00\x00")
        print ">>> " + " ".join(["{0:02x}".format(b) for b in cmd])
        dh.bulkWrite(usb_out, cmd, 1000)
        rsp = dh.bulkRead(usb_inp, 300, 1000)
        print "<<< " + " ".join(["{0:02x}".format(b) for b in rsp])

    if False:
        # CCID IccPowerOff
        seq = (seq + 1) % 256
        cmd = bytearray("\x63\x00\x00\x00\x00\x00"+chr(seq)+"\x00\x00\x00")
        print ">>> " + " ".join(["{0:02x}".format(b) for b in cmd])
        dh.bulkWrite(usb_out, cmd, 1000)
        rsp = dh.bulkRead(usb_inp, 300, 1000)
        print "<<< " + " ".join(["{0:02x}".format(b) for b in rsp])

    if False:
        # CCID IccPowerOn
        seq = (seq + 1) % 256
        cmd = bytearray("\x62\x00\x00\x00\x00\x00"+chr(seq)+"\x00\x00\x00")
        print ">>> " + " ".join(["{0:02x}".format(b) for b in cmd])
        dh.bulkWrite(usb_out, cmd, 1000)
        rsp = dh.bulkRead(usb_inp, 300, 1000)
        print "<<< " + " ".join(["{0:02x}".format(b) for b in rsp])

    if False:
        # PN532 GetFirmware
        seq = (seq + 1) % 256
        cmd = bytearray("\x6B\x07\x00\x00\x00\x00"+chr(seq)+"\x00\x00\x00")
        cmd += bytearray("\xFF\x00\x00\x00\x02" + "\xD4\x02")
        print ">>> " + " ".join(["{0:02x}".format(b) for b in cmd])
        dh.bulkWrite(usb_out, cmd, 1000)
        rsp = dh.bulkRead(usb_inp, 300, 1000)
        print "<<< " + " ".join(["{0:02x}".format(b) for b in rsp])

    if 1:
        # PN532 InListPassiveTarget (FeliCa)
        seq = (seq + 1) % 256
        cmd = "d44a010100ffff0103".decode("hex")
        cmd = "\xFF\x00\x00\x00"+chr(len(cmd))+cmd
        cmd = "\x6B"+chr(len(cmd))+"\x00\x00\x00\x00"+chr(seq)+"\x00\x00\x00"+cmd
        cmd = bytearray(cmd)
        print ">>> " + " ".join(["{0:02x}".format(b) for b in cmd])
        dh.bulkWrite(usb_out, cmd, 1000)
        rsp = bytearray(dh.bulkRead(usb_inp, 300, 1000))
        print "<<< " + " ".join(["{0:02x}".format(b) for b in rsp])

    if False:
        # PN532 RFParameters (RF off)
        seq = (seq + 1) % 256
        cmd = "FF00000004D4320100".decode("hex")
        cmd = "\x6B"+chr(len(cmd))+"\x00\x00\x00\x00"+chr(seq)+"\x00\x00\x00"+cmd
        cmd = bytearray(cmd)
        print ">>> " + " ".join(["{0:02x}".format(b) for b in cmd])
        dh.bulkWrite(usb_out, cmd, 1000)
        rsp = bytearray(dh.bulkRead(usb_inp, 300, 1000))
        print "<<< " + " ".join(["{0:02x}".format(b) for b in rsp])