PyObject *Mifare_select(Mifare *self)
{
uint8_t byteBufferSize = UID_BUFFER_SIZE;
uint8_t byteBuffer[UID_BUFFER_SIZE];
uint8_t pAtqa[2];
phStatus_t status;
uint8_t bSak;
uint8_t bMoreCardsAvailable;
/* reset the IC */
phhalHw_Rc523_Cmd_SoftReset(&self->data.hal);
/* Reset the RF field */
if ((status = phhalHw_FieldReset(&self->data.hal)) != PH_ERR_SUCCESS) {
return PyErr_Format(SelectError, "FieldReset command failed: %04x", status);
}
/* Apply the type A protocol settings
* and activate the RF field. */
if ((status = phhalHw_ApplyProtocolSettings(&self->data.hal, PHHAL_HW_CARDTYPE_ISO14443A)) != PH_ERR_SUCCESS) {
return PyErr_Format(SelectError, "ApplyProtocolSettings command failed: %04x", status);
}
/* Empty the pAtqa */
memset(pAtqa, '\0', 2);
if ((status = phpalI14443p3a_RequestA(&self->data.I14443p3a, pAtqa)) != PH_ERR_SUCCESS) {
return PyErr_Format(SelectError, "RequestA command failed: %04x", status);
}
/* Reset the RF field */
if ((status = phhalHw_FieldReset(&self->data.hal)) != PH_ERR_SUCCESS) {
return PyErr_Format(SelectError, "FieldReset command failed: %04x", status);
}
/* Activate the communication layer part 3 of the ISO 14443A standard. */
if ( phpalI14443p3a_ActivateCard(&self->data.I14443p3a, NULL, 0x00, byteBuffer, &byteBufferSize, &bSak, &bMoreCardsAvailable) == PH_ERR_SUCCESS) {
// Card is present, return it as a python object.
uint8_t i;
char asciiBuffer[UID_ASCII_BUFFER_SIZE];
if (byteBufferSize + 1 > UID_ASCII_BUFFER_SIZE) {
// Truncate if we got back too much data
byteBufferSize = UID_ASCII_BUFFER_SIZE - 1;
}
for (i = 0; i < byteBufferSize; i++) {
sprintf(&asciiBuffer[2 * i], "%02X", byteBuffer[i]);
}
return PyUnicode_FromString(asciiBuffer);
}
Py_RETURN_NONE;
}
phStatus_t search_card(uint8_t * pUid, uint8_t * pLength, uint8_t * pSak, uint8_t * pNbCards) {
PH_CHECK_SUCCESS_FCT(status, phhalHw_FieldReset(&hal));
PH_CHECK_SUCCESS_FCT(status, phhalHw_ApplyProtocolSettings(&hal,
PHHAL_HW_CARDTYPE_ISO14443A));
PH_CHECK_SUCCESS_FCT(status, phpalI14443p3a_ActivateCard(&palI14443p3a, NULL, 0x00, pUid,
pLength, pSak, pNbCards));
return PH_ERR_SUCCESS;
}
