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 128

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 176

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 114

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(poll_nr = 1, ms = 1) ⇒ Object 



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# File 'lib/nfc/device.rb', line 16

def poll poll_nr = 1, ms = 1
  poll_target NFC::Device::IM_ISO14443A_106, poll_nr,ms
end

#poll_target(tag, ms) ⇒ Object

Poll the tag type from the device



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# File 'ext/nfc/nfc_device.c', line 73

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

    ms_c = FIX2INT(ms);
    poll_nr_c = FIX2INT(poll_nr);

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

    code = nfc_initiator_poll_target(dev, mod, 1, poll_nr_c, ms_c, 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);
  }
    }else {
  xfree(ti);
    }

    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 32

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

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

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

    ctx.dev = dev;
    ctx.mod = mod;
    ctx.ti = ti;

    if (rb_thread_call_without_gvl(nogvl_select_passive_target, &ctx, RUBY_UBF_IO, 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, free, ti); */
    return Qnil;
    break;
      default:
    rb_raise(rb_eRuntimeError, "untested type: %d", mod->nmt);
  }
    } else {
  xfree(ti);
    }

    return Qfalse;
}