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#include <nfc.h>
#include <ruby/thread.h>
VALUE cNfcDevice;
struct nogvl_ctx {
nfc_device *dev;
nfc_modulation *mod;
nfc_target *ti;
};
void * nogvl_select_passive_target(void * ctx)
{
nfc_device * dev;
nfc_modulation * mod;
nfc_target * ti;
struct nogvl_ctx * myctx = (struct nogvl_ctx *)ctx;
dev = myctx->dev;
mod = myctx->mod;
ti = myctx->ti;
nfc_initiator_select_passive_target(dev, *mod, NULL, 0, ti);
}
/*
* call-seq:
* select_passive_target(tag)
*
* Select the +tag+ type from the device
*/
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;
}
/*
* call-seq:
* poll_target(tag, ms)
*
* Poll the +tag+ type from the device
*/
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);
}
/*
* call-seq:
* name
*
* Get the name of the tag reader
*/
static VALUE name(VALUE self)
{
nfc_device * dev;
Data_Get_Struct(self, nfc_device, dev);
return rb_str_new2(nfc_device_get_name(dev));
}
/*
* call-seq:
* deselect
*
* Deselect the current tag
*/
static VALUE dev_deselect(VALUE self)
{
nfc_device * dev;
Data_Get_Struct(self, nfc_device, dev);
nfc_initiator_deselect_target(dev);
return self;
}
static VALUE mod_initialize(VALUE self, VALUE type, VALUE baud)
{
nfc_modulation * mod;
Data_Get_Struct(self, nfc_modulation, mod);
mod->nmt = NUM2INT(type);
mod->nbr = NUM2INT(baud);
return self;
}
static VALUE mod_alloc(VALUE klass)
{
nfc_modulation * modulation;
modulation = xcalloc(1, sizeof(nfc_modulation));
return Data_Wrap_Struct(klass, NULL, xfree, modulation);
}
static VALUE mod_nmt(VALUE self)
{
nfc_modulation * mod;
Data_Get_Struct(self, nfc_modulation, mod);
return INT2NUM(mod->nmt);
}
static VALUE mod_nbr(VALUE self)
{
nfc_modulation * mod;
Data_Get_Struct(self, nfc_modulation, mod);
return INT2NUM(mod->nbr);
}
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);
}
void init_device()
{
VALUE cNfcModulation;
cNfcDevice = rb_define_class_under(mNfc, "Device", rb_cObject);
rb_define_method(cNfcDevice, "initiator_init", initiator_init, 0);
rb_define_method(cNfcDevice, "select_passive_target", select_passive_target, 1);
rb_define_method(cNfcDevice, "poll_target", poll_target, 3);
rb_define_method(cNfcDevice, "name", name, 0);
rb_define_method(cNfcDevice, "deselect", dev_deselect, 0);
cNfcModulation = rb_define_class_under(cNfcDevice, "Modulation", rb_cObject);
/* modulation types. */
rb_define_const(cNfcModulation, "NMT_ISO14443A", INT2NUM(NMT_ISO14443A));
rb_define_const(cNfcModulation, "NMT_FELICA", INT2NUM(NMT_FELICA));
/* baud rates */
rb_define_const(cNfcModulation, "NBR_UNDEFINED", INT2NUM(NBR_UNDEFINED));
rb_define_const(cNfcModulation, "NBR_106", INT2NUM(NBR_106));
rb_define_const(cNfcModulation, "NBR_212", INT2NUM(NBR_212));
rb_define_alloc_func(cNfcModulation, mod_alloc);
rb_define_method(cNfcModulation, "initialize", mod_initialize, 2);
rb_define_method(cNfcModulation, "nmt", mod_nmt, 0);
rb_define_method(cNfcModulation, "nbr", mod_nbr, 0);
}
/* vim: set noet sws=4 sw=4: */
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