/*
* Get a list of the MIFARE targets near to the provided NFC initiator.
*
* The list has to be freed using the freefare_free_tags() function.
*/
MifareTag *
freefare_get_tags (nfc_device *device)
{
MifareTag *tags = NULL;
int tag_count = 0;
nfc_initiator_init(device);
// Drop the field for a while
nfc_device_set_property_bool(device,NP_ACTIVATE_FIELD,false);
// Configure the CRC and Parity settings
nfc_device_set_property_bool(device,NP_HANDLE_CRC,true);
nfc_device_set_property_bool(device,NP_HANDLE_PARITY,true);
nfc_device_set_property_bool(device,NP_AUTO_ISO14443_4,true);
// Enable field so more power consuming cards can power themselves up
nfc_device_set_property_bool(device,NP_ACTIVATE_FIELD,true);
// Poll for a ISO14443A (MIFARE) tag
nfc_target *candidates = pvPortMalloc(MAX_CANDIDATES*sizeof(nfc_target));
int candidates_count;
nfc_modulation modulation = {
.nmt = NMT_ISO14443A,
.nbr = NBR_106
};
if ((candidates_count = nfc_initiator_list_passive_targets(device, modulation, candidates, MAX_CANDIDATES)) < 0)
{
vPortFree(candidates);
return NULL;
}
tags = pvPortMalloc(MAX_CANDIDATES*sizeof (void *));
if(!tags)
{
vPortFree(candidates);
return NULL;
}
memset (tags,0,MAX_CANDIDATES*sizeof (void *));
for (int c = 0; c < candidates_count; c++) {
MifareTag t;
if ((t = freefare_tag_new(device, candidates[c].nti.nai))) {
/* (Re)Allocate memory for the found MIFARE targets array */
/* MifareTag *p = pvPortRealloc (tags, (tag_count + 2) * sizeof (MifareTag));
if (p)
tags = p;
else
{
vPortFree(candidates);
return tags; // FAIL! Return what has been found so far.
}*/
tags[tag_count++] = t;
// tags[tag_count] = NULL;
}
}
vPortFree(candidates);
return tags;
}
/*
* Get a list of the MIFARE targets near to the provided NFC initiator.
*
* The list has to be freed using the freefare_free_tags() function.
*/
FreefareTag *
freefare_get_tags (nfc_device *device)
{
FreefareTag *tags = NULL;
int tag_count = 0;
nfc_initiator_init(device);
// Drop the field for a while
nfc_device_set_property_bool(device,NP_ACTIVATE_FIELD,false);
// Configure the CRC and Parity settings
nfc_device_set_property_bool(device,NP_HANDLE_CRC,true);
nfc_device_set_property_bool(device,NP_HANDLE_PARITY,true);
nfc_device_set_property_bool(device,NP_AUTO_ISO14443_4,true);
// Enable field so more power consuming cards can power themselves up
nfc_device_set_property_bool(device,NP_ACTIVATE_FIELD,true);
// Poll for a ISO14443A (MIFARE) tag
nfc_target candidates[MAX_CANDIDATES];
int candidates_count;
nfc_modulation modulation = {
.nmt = NMT_ISO14443A,
.nbr = NBR_106
};
if ((candidates_count = nfc_initiator_list_passive_targets(device, modulation, candidates, MAX_CANDIDATES)) < 0)
return NULL;
tags = malloc(sizeof (void *));
if(!tags) return NULL;
tags[0] = NULL;
for (int c = 0; c < candidates_count; c++) {
FreefareTag t;
if ((t = freefare_tag_new(device, candidates[c]))) {
/* (Re)Allocate memory for the found MIFARE targets array */
FreefareTag *p = realloc (tags, (tag_count + 2) * sizeof (FreefareTag));
if (p)
tags = p;
else
return tags; // FAIL! Return what has been found so far.
tags[tag_count++] = t;
tags[tag_count] = NULL;
}
}
// Poll for a FELICA tag
modulation.nmt = NMT_FELICA;
modulation.nbr = NBR_424; // FIXME NBR_212 should also be supported
if ((candidates_count = nfc_initiator_list_passive_targets(device, modulation, candidates, MAX_CANDIDATES)) < 0)
return NULL;
for (int c = 0; c < candidates_count; c++) {
FreefareTag t;
if ((t = freefare_tag_new(device, candidates[c]))) {
/* (Re)Allocate memory for the found FELICA targets array */
FreefareTag *p = realloc (tags, (tag_count + 2) * sizeof (FreefareTag));
if (p)
tags = p;
else
return tags; // FAIL! Return what has been found so far.
tags[tag_count++] = t;
tags[tag_count] = NULL;
}
}
return tags;
}
