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

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.connect ⇒ Object

Connect to the NFC device



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

static VALUE connect(VALUE klass)
{
  nfc_device_t * dev = nfc_connect(NULL);
  if(!dev)
    rb_raise(rb_eRuntimeError, "could not find NFC device");

  if(!nfc_initiator_init(dev))
    rb_raise(rb_eRuntimeError, "oh snap, could not init");

  return Data_Wrap_Struct(klass, 0, 0, dev);
}

Instance Method Details

#configure(option, value) ⇒ Object

Configure the Device with option and value



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# File 'ext/nfc/nfc_device.c', line 44

static VALUE configure(VALUE self, VALUE option, VALUE flag)
{
  nfc_device_t * dev;
  Data_Get_Struct(self, nfc_device_t, dev);

  nfc_configure(
    dev,
    (const nfc_device_option_t)NUM2INT(option),
    (const bool)NUM2INT(flag)
  );

  return self;
}

#deselect ⇒ Object

Deselect the current tag



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# File 'ext/nfc/nfc_device.c', line 111

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

  nfc_initiator_deselect_target(dev);

  return self;
}

#disconnect ⇒ Object

Disconnect from the NFC device



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# File 'ext/nfc/nfc_device.c', line 29

static VALUE disconnect(VALUE self)
{
  nfc_device_t * dev;
  Data_Get_Struct(self, nfc_device_t, dev);
  nfc_disconnect(dev);

  return self;
}

#name ⇒ Object

Get the name of the tag reader



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# File 'ext/nfc/nfc_device.c', line 97

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

  return rb_str_new2(dev->acName);
}

#select(tag) ⇒ Object

Select the tag type from the device



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# File 'ext/nfc/nfc_device.c', line 64

static VALUE dev_select(VALUE self, VALUE tag)
{
  nfc_device_t * dev;
  nfc_modulation_t * mod;
  nfc_target_t * ti;

  Data_Get_Struct(self, nfc_device_t, dev);
  Data_Get_Struct(tag, nfc_modulation_t, mod);

  ti = (nfc_target_t *)calloc(1, sizeof(nfc_target_t));

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

  return Qfalse;
}