Class: NFC::Device

Inherits:
Object
  • Object
show all
Defined in:
lib/nfc/device.rb,
ext/nfc/nfc_device.c

Defined Under Namespace

Classes: Modulation

Constant Summary collapse

DCO_HANDLE_CRC = 
0x00
DCO_HANDLE_PARITY = 
0x01
DCO_ACTIVATE_FIELD = 
0x10
DCO_INFINITE_LIST_PASSIVE = 
0x20
IM_ISO14443A_106 = 
Modulation.new Modulation::NMT_ISO14443A,
Modulation::NBR_106

Instance Method Summary collapse

Instance Method Details

#deselect ⇒ Object

Deselect the current tag



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# File 'ext/nfc/nfc_device.c', line 95

static VALUE dev_deselect(VALUE self)
{
  nfc_device * dev;
  Data_Get_Struct(self, nfc_device, dev);

  nfc_initiator_deselect_target(dev);

  return self;
}

#initiator_init ⇒ Object 



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# File 'ext/nfc/nfc_device.c', line 143

static VALUE initiator_init(VALUE self)
{
  nfc_device * dev;
  int err;

  Data_Get_Struct(self, nfc_device, dev);

  err = nfc_initiator_init(dev);
  if (0 == err)
    return Qtrue;

  return INT2NUM(err);
}

#name ⇒ Object

Get the name of the tag reader



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# File 'ext/nfc/nfc_device.c', line 81

static VALUE name(VALUE self)
{
  nfc_device * dev;
  Data_Get_Struct(self, nfc_device, dev);

  return rb_str_new2(nfc_device_get_name(dev));
}

#poll_target(tag, ms) ⇒ Object

Poll the tag type from the device



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# File 'ext/nfc/nfc_device.c', line 45

static VALUE poll_target(VALUE self, VALUE tag, VALUE ms)
{
  nfc_device * dev;
  nfc_modulation * mod;
  nfc_target * ti;
  int code;

  Data_Get_Struct(self, nfc_device, dev);
  Data_Get_Struct(tag, nfc_modulation, mod);

  ti = (nfc_target *)xmalloc(sizeof(nfc_target));

  code = nfc_initiator_poll_target(dev, mod, 1, 0, 1, ti);

  if (code > 0) {
    switch(mod->nmt) {
      case NMT_ISO14443A:
        return Data_Wrap_Struct(cNfcISO14443A, 0, xfree, ti);
        break;
      case NMT_FELICA:
        return Data_Wrap_Struct(cNfcFelica, 0, xfree, ti);
        break;
      default:
        rb_raise(rb_eRuntimeError, "untested type: %d", mod->nmt);
    }
  }

  return INT2NUM(code);
}

#select ⇒ Object

Find a tag, blocks until there is a tag available



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# File 'lib/nfc/device.rb', line 12

def select
  select_passive_target NFC::Device::IM_ISO14443A_106
end

#select_passive_target(tag) ⇒ Object

Select the tag type from the device



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# File 'ext/nfc/nfc_device.c', line 11

static VALUE select_passive_target(VALUE self, VALUE tag)
{
  nfc_device * dev;
  nfc_modulation * mod;
  nfc_target * ti;

  Data_Get_Struct(self, nfc_device, dev);
  Data_Get_Struct(tag, nfc_modulation, mod);

  ti = (nfc_target *)xmalloc(sizeof(nfc_target));

  if (nfc_initiator_select_passive_target(dev, *mod, NULL, 0, ti) ) {
    switch(mod->nmt) {
      case NMT_ISO14443A:
        return Data_Wrap_Struct(cNfcISO14443A, 0, xfree, ti);
        break;
      case NMT_FELICA:
        /* return Data_Wrap_Struct(cNfcFelica, 0, free, ti); */
        return Qnil;
        break;
      default:
        rb_raise(rb_eRuntimeError, "untested type: %d", mod->nmt);
    }
  }

  return Qfalse;
}