void rc522_uart_close(nfc_device * pnd) {
rc522_powerdown(pnd);
// Release UART port
uart_close(DRIVER_DATA(pnd)->port);
rc522_data_free(pnd);
nfc_device_free(pnd);
}
nfc_device *
acr122_open (const nfc_connstring connstring)
{
struct acr122_descriptor ndd;
int connstring_decode_level = acr122_connstring_decode (connstring, &ndd);
if (connstring_decode_level < 2) {
return NULL;
}
// FIXME: acr122_open() does not take care about bus index
char *pcFirmware;
nfc_device *pnd = nfc_device_new (connstring);
pnd->driver_data = malloc (sizeof (struct acr122_data));
// Alloc and init chip's data
pn53x_data_new (pnd, &acr122_io);
SCARDCONTEXT *pscc;
log_put (LOG_CATEGORY, NFC_PRIORITY_TRACE, "Attempt to open %s", ndd.pcsc_device_name);
// Test if context succeeded
if (!(pscc = acr122_get_scardcontext ()))
goto error;
// Test if we were able to connect to the "emulator" card
if (SCardConnect (*pscc, ndd.pcsc_device_name, SCARD_SHARE_EXCLUSIVE, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, &(DRIVER_DATA (pnd)->hCard), (void *) &(DRIVER_DATA (pnd)->ioCard.dwProtocol)) != SCARD_S_SUCCESS) {
// Connect to ACR122 firmware version >2.0
if (SCardConnect (*pscc, ndd.pcsc_device_name, SCARD_SHARE_DIRECT, 0, &(DRIVER_DATA (pnd)->hCard), (void *) &(DRIVER_DATA (pnd)->ioCard.dwProtocol)) != SCARD_S_SUCCESS) {
// We can not connect to this device.
log_put (LOG_CATEGORY, NFC_PRIORITY_TRACE, "%s", "PCSC connect failed");
goto error;
}
}
// Configure I/O settings for card communication
DRIVER_DATA (pnd)->ioCard.cbPciLength = sizeof (SCARD_IO_REQUEST);
// Retrieve the current firmware version
pcFirmware = acr122_firmware (pnd);
if (strstr (pcFirmware, FIRMWARE_TEXT) != NULL) {
// Done, we found the reader we are looking for
snprintf (pnd->name, sizeof (pnd->name), "%s / %s", ndd.pcsc_device_name, pcFirmware);
// 50: empirical tuning on Touchatag
// 46: empirical tuning on ACR122U
CHIP_DATA (pnd)->timer_correction = 50;
pnd->driver = &acr122_driver;
pn53x_init (pnd);
return pnd;
}
error:
nfc_device_free (pnd);
return NULL;
}
void
acr122_close (nfc_device *pnd)
{
SCardDisconnect (DRIVER_DATA (pnd)->hCard, SCARD_LEAVE_CARD);
acr122_free_scardcontext ();
pn53x_data_free (pnd);
nfc_device_free (pnd);
}
static void
arygon_close_step2(nfc_device *pnd)
{
// Release UART port
uart_close(DRIVER_DATA(pnd)->port);
#ifndef WIN32
// Release file descriptors used for abort mecanism
close(DRIVER_DATA(pnd)->iAbortFds[0]);
close(DRIVER_DATA(pnd)->iAbortFds[1]);
#endif
pn53x_data_free(pnd);
nfc_device_free(pnd);
}
static size_t
pn532_uart_scan(const nfc_context *context, nfc_connstring connstrings[], const size_t connstrings_len)
{
size_t device_found = 0;
serial_port sp;
char **acPorts = uart_list_ports();
const char *acPort;
int iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
sp = uart_open(acPort);
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "Trying to find PN532 device on serial port: %s at %d bauds.", acPort, PN532_UART_DEFAULT_SPEED);
if ((sp != INVALID_SERIAL_PORT) && (sp != CLAIMED_SERIAL_PORT)) {
// We need to flush input to be sure first reply does not comes from older byte transceive
uart_flush_input(sp);
// Serial port claimed but we need to check if a PN532_UART is opened.
uart_set_speed(sp, PN532_UART_DEFAULT_SPEED);
nfc_connstring connstring;
snprintf(connstring, sizeof(nfc_connstring), "%s:%s:%"PRIu32, PN532_UART_DRIVER_NAME, acPort, PN532_UART_DEFAULT_SPEED);
nfc_device *pnd = nfc_device_new(context, connstring);
pnd->driver = &pn532_uart_driver;
pnd->driver_data = malloc(sizeof(struct pn532_uart_data));
DRIVER_DATA(pnd)->port = sp;
// Alloc and init chip's data
pn53x_data_new(pnd, &pn532_uart_io);
// SAMConfiguration command if needed to wakeup the chip and pn53x_SAMConfiguration check if the chip is a PN532
CHIP_DATA(pnd)->type = PN532;
// This device starts in LowVBat power mode
CHIP_DATA(pnd)->power_mode = LOWVBAT;
#ifndef WIN32
// pipe-based abort mecanism
if (pipe(DRIVER_DATA(pnd)->iAbortFds) < 0) {
return 0;
}
#else
DRIVER_DATA(pnd)->abort_flag = false;
#endif
// Check communication using "Diagnose" command, with "Communication test" (0x00)
int res = pn53x_check_communication(pnd);
pn53x_data_free(pnd);
nfc_device_free(pnd);
uart_close(sp);
if (res < 0) {
continue;
}
memcpy(connstrings[device_found], connstring, sizeof(nfc_connstring));
device_found++;
// Test if we reach the maximum "wanted" devices
if (device_found >= connstrings_len)
break;
}
}
iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
free((void *)acPort);
}
free(acPorts);
return device_found;
}
static nfc_device *
pn532_uart_open(const nfc_context *context, const nfc_connstring connstring)
{
struct pn532_uart_descriptor ndd;
char *speed_s;
int connstring_decode_level = connstring_decode(connstring, PN532_UART_DRIVER_NAME, NULL, &ndd.port, &speed_s);
if (connstring_decode_level == 3) {
ndd.speed = 0;
if (sscanf(speed_s, "%10"PRIu32, &ndd.speed) != 1) {
// speed_s is not a number
free(ndd.port);
free(speed_s);
return NULL;
}
free(speed_s);
}
if (connstring_decode_level < 2) {
return NULL;
}
if (connstring_decode_level < 3) {
ndd.speed = PN532_UART_DEFAULT_SPEED;
}
serial_port sp;
nfc_device *pnd = NULL;
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "Attempt to open: %s at %d bauds.", ndd.port, ndd.speed);
sp = uart_open(ndd.port);
if (sp == INVALID_SERIAL_PORT)
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Invalid serial port: %s", ndd.port);
if (sp == CLAIMED_SERIAL_PORT)
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Serial port already claimed: %s", ndd.port);
if ((sp == CLAIMED_SERIAL_PORT) || (sp == INVALID_SERIAL_PORT)) {
free(ndd.port);
return NULL;
}
// We need to flush input to be sure first reply does not comes from older byte transceive
uart_flush_input(sp);
uart_set_speed(sp, ndd.speed);
// We have a connection
pnd = nfc_device_new(context, connstring);
if (!pnd) {
perror("malloc");
free(ndd.port);
uart_close(sp);
return NULL;
}
snprintf(pnd->name, sizeof(pnd->name), "%s:%s", PN532_UART_DRIVER_NAME, ndd.port);
free(ndd.port);
pnd->driver_data = malloc(sizeof(struct pn532_uart_data));
if (!pnd->driver_data) {
perror("malloc");
uart_close(sp);
nfc_device_free(pnd);
return NULL;
}
DRIVER_DATA(pnd)->port = sp;
// Alloc and init chip's data
if (pn53x_data_new(pnd, &pn532_uart_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
return NULL;
}
// SAMConfiguration command if needed to wakeup the chip and pn53x_SAMConfiguration check if the chip is a PN532
CHIP_DATA(pnd)->type = PN532;
// This device starts in LowVBat mode
CHIP_DATA(pnd)->power_mode = LOWVBAT;
// empirical tuning
CHIP_DATA(pnd)->timer_correction = 48;
pnd->driver = &pn532_uart_driver;
#ifndef WIN32
// pipe-based abort mecanism
if (pipe(DRIVER_DATA(pnd)->iAbortFds) < 0) {
uart_close(DRIVER_DATA(pnd)->port);
pn53x_data_free(pnd);
nfc_device_free(pnd);
return NULL;
}
#else
DRIVER_DATA(pnd)->abort_flag = false;
#endif
// Check communication using "Diagnose" command, with "Communication test" (0x00)
if (pn53x_check_communication(pnd) < 0) {
nfc_perror(pnd, "pn53x_check_communication");
pn532_uart_close(pnd);
return NULL;
}
pn53x_init(pnd);
return pnd;
}
static nfc_device *
acr122_usb_open(const nfc_context *context, const nfc_connstring connstring)
{
nfc_device *pnd = NULL;
struct acr122_usb_descriptor desc = { NULL, NULL };
int connstring_decode_level = connstring_decode(connstring, ACR122_USB_DRIVER_NAME, "usb", &desc.dirname, &desc.filename);
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "%d element(s) have been decoded from \"%s\"", connstring_decode_level, connstring);
if (connstring_decode_level < 1) {
goto free_mem;
}
struct acr122_usb_data data = {
.pudh = NULL,
.uiEndPointIn = 0,
.uiEndPointOut = 0,
};
struct usb_bus *bus;
struct usb_device *dev;
usb_prepare();
for (bus = usb_get_busses(); bus; bus = bus->next) {
if (connstring_decode_level > 1) {
// A specific bus have been specified
if (0 != strcmp(bus->dirname, desc.dirname))
continue;
}
for (dev = bus->devices; dev; dev = dev->next) {
if (connstring_decode_level > 2) {
// A specific dev have been specified
if (0 != strcmp(dev->filename, desc.filename))
continue;
}
// Open the USB device
if ((data.pudh = usb_open(dev)) == NULL)
continue;
// Reset device
usb_reset(data.pudh);
// Retrieve end points
acr122_usb_get_end_points(dev, &data);
// Claim interface
int res = usb_claim_interface(data.pudh, 0);
if (res < 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Unable to claim USB interface (%s)", _usb_strerror(res));
usb_close(data.pudh);
// we failed to use the specified device
goto free_mem;
}
res = usb_set_altinterface(data.pudh, 0);
if (res < 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Unable to set alternate setting on USB interface (%s)", _usb_strerror(res));
usb_close(data.pudh);
// we failed to use the specified device
goto free_mem;
}
// Allocate memory for the device info and specification, fill it and return the info
pnd = nfc_device_new(context, connstring);
if (!pnd) {
perror("malloc");
goto error;
}
acr122_usb_get_usb_device_name(dev, data.pudh, pnd->name, sizeof(pnd->name));
pnd->driver_data = malloc(sizeof(struct acr122_usb_data));
if (!pnd->driver_data) {
perror("malloc");
goto error;
}
*DRIVER_DATA(pnd) = data;
// Alloc and init chip's data
if (pn53x_data_new(pnd, &acr122_usb_io) == NULL) {
perror("malloc");
goto error;
}
memcpy(&(DRIVER_DATA(pnd)->tama_frame), acr122_usb_frame_template, sizeof(acr122_usb_frame_template));
memcpy(&(DRIVER_DATA(pnd)->apdu_frame), acr122_usb_frame_template, sizeof(acr122_usb_frame_template));
CHIP_DATA(pnd)->timer_correction = 46; // empirical tuning
pnd->driver = &acr122_usb_driver;
if (acr122_usb_init(pnd) < 0) {
usb_close(data.pudh);
goto error;
}
DRIVER_DATA(pnd)->abort_flag = false;
goto free_mem;
}
}
// We ran out of devices before the index required
goto free_mem;
error:
// Free allocated structure on error.
nfc_device_free(pnd);
pnd = NULL;
free_mem:
free(desc.dirname);
free(desc.filename);
return pnd;
}
static void
acr122_usb_close(nfc_device *pnd)
{
acr122_usb_ack(pnd);
pn53x_idle(pnd);
int res;
if ((res = usb_release_interface(DRIVER_DATA(pnd)->pudh, 0)) < 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Unable to release USB interface (%s)", _usb_strerror(res));
}
if ((res = usb_close(DRIVER_DATA(pnd)->pudh)) < 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Unable to close USB connection (%s)", _usb_strerror(res));
}
pn53x_data_free(pnd);
nfc_device_free(pnd);
}
nfc_device *
pn53x_usb_open (const nfc_connstring connstring)
{
nfc_device *pnd = NULL;
struct pn53x_usb_descriptor desc = { NULL, NULL } ;
int connstring_decode_level = pn53x_usb_connstring_decode (connstring, &desc);
log_put (LOG_CATEGORY, NFC_PRIORITY_TRACE, "%d element(s) have been decoded from \"%s\"", connstring_decode_level, connstring);
if (connstring_decode_level < 1) {
goto free_mem;
}
struct pn53x_usb_data data = {
.pudh = NULL,
.uiEndPointIn = 0,
.uiEndPointOut = 0,
};
struct usb_bus *bus;
struct usb_device *dev;
usb_init ();
int res;
// usb_find_busses will find all of the busses on the system. Returns the
// number of changes since previous call to this function (total of new
// busses and busses removed).
if ((res = usb_find_busses () < 0)) {
log_put (LOG_CATEGORY, NFC_PRIORITY_ERROR, "Unable to find USB busses (%s)", _usb_strerror (res));
goto free_mem;
}
// usb_find_devices will find all of the devices on each bus. This should be
// called after usb_find_busses. Returns the number of changes since the
// previous call to this function (total of new device and devices removed).
if ((res = usb_find_devices () < 0)) {
log_put (LOG_CATEGORY, NFC_PRIORITY_ERROR, "Unable to find USB devices (%s)", _usb_strerror (res));
goto free_mem;
}
for (bus = usb_get_busses (); bus; bus = bus->next) {
if (connstring_decode_level > 1) {
// A specific bus have been specified
if (0 != strcmp (bus->dirname, desc.dirname))
continue;
}
for (dev = bus->devices; dev; dev = dev->next) {
if (connstring_decode_level > 2) {
// A specific dev have been specified
if (0 != strcmp (dev->filename, desc.filename))
continue;
}
// Open the USB device
data.pudh = usb_open (dev);
// Retrieve end points
pn53x_usb_get_end_points (dev, &data);
// Set configuration
int res = usb_set_configuration (data.pudh, 1);
if (res < 0) {
log_put (LOG_CATEGORY, NFC_PRIORITY_ERROR, "Unable to set USB configuration (%s)", _usb_strerror (res));
if (EPERM == -res) {
log_put (LOG_CATEGORY, NFC_PRIORITY_WARN, "Please double check USB permissions for device %04x:%04x", dev->descriptor.idVendor, dev->descriptor.idProduct);
}
usb_close (data.pudh);
// we failed to use the specified device
goto free_mem;
}
res = usb_claim_interface (data.pudh, 0);
if (res < 0) {
log_put (LOG_CATEGORY, NFC_PRIORITY_ERROR, "Unable to claim USB interface (%s)", _usb_strerror (res));
usb_close (data.pudh);
// we failed to use the specified device
goto free_mem;
}
data.model = pn53x_usb_get_device_model (dev->descriptor.idVendor, dev->descriptor.idProduct);
// Allocate memory for the device info and specification, fill it and return the info
pnd = nfc_device_new (connstring);
pn53x_usb_get_usb_device_name (dev, data.pudh, pnd->name, sizeof (pnd->name));
pnd->driver_data = malloc(sizeof(struct pn53x_usb_data));
*DRIVER_DATA (pnd) = data;
// Alloc and init chip's data
pn53x_data_new (pnd, &pn53x_usb_io);
switch (DRIVER_DATA (pnd)->model) {
// empirical tuning
case ASK_LOGO:
CHIP_DATA (pnd)->timer_correction = 50;
break;
case SCM_SCL3711:
case NXP_PN533:
CHIP_DATA (pnd)->timer_correction = 46;
break;
case NXP_PN531:
CHIP_DATA (pnd)->timer_correction = 50;
break;
case SONY_PN531:
CHIP_DATA (pnd)->timer_correction = 54;
break;
default:
break;
}
pnd->driver = &pn53x_usb_driver;
// HACK1: Send first an ACK as Abort command, to reset chip before talking to it:
pn53x_usb_ack (pnd);
// HACK2: Then send a GetFirmware command to resync USB toggle bit between host & device
// in case host used set_configuration and expects the device to have reset its toggle bit, which PN53x doesn't do
if (pn53x_usb_init (pnd) < 0) {
usb_close (data.pudh);
goto error;
}
DRIVER_DATA (pnd)->abort_flag = false;
goto free_mem;
}
}
// We ran out of devices before the index required
goto free_mem;
error:
// Free allocated structure on error.
nfc_device_free (pnd);
free_mem:
free (desc.dirname);
free (desc.filename);
return pnd;
}
void
pn53x_usb_close (nfc_device *pnd)
{
pn53x_usb_ack (pnd);
pn53x_idle (pnd);
if (DRIVER_DATA (pnd)->model == ASK_LOGO) {
/* Set P30, P31, P32, P33, P35 to logic 1 and P34 to 0 logic */
/* ie. Switch all LEDs off and turn off progressive field */
pn53x_write_register (pnd, PN53X_SFR_P3, 0xFF, _BV (P30) | _BV (P31) | _BV (P32) | _BV (P33) | _BV (P35));
}
int res;
if ((res = usb_release_interface (DRIVER_DATA (pnd)->pudh, 0)) < 0) {
log_put (LOG_CATEGORY, NFC_PRIORITY_ERROR, "Unable to release USB interface (%s)", _usb_strerror (res));
}
if ((res = usb_close (DRIVER_DATA (pnd)->pudh)) < 0) {
log_put (LOG_CATEGORY, NFC_PRIORITY_ERROR, "Unable to close USB connection (%s)", _usb_strerror (res));
}
pn53x_data_free (pnd);
nfc_device_free (pnd);
}
int rc522_uart_create(const nfc_context * context, const nfc_connstring connstring, const char * portPath, uint32_t userBaudRate, struct nfc_device ** pndPtr) {
//int ret;
serial_port sp;
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "Attempt to open: %s.", portPath);
sp = uart_open(portPath);
if (sp == INVALID_SERIAL_PORT) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Invalid serial port: %s", portPath);
return NFC_EIO;
}
if (sp == CLAIMED_SERIAL_PORT) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Serial port already claimed: %s", portPath);
return NFC_EIO;
}
// MODIF !!!
// We need to flush input to be sure first reply does not comes from older byte transceive
/*if ((ret = uart_flush_input(sp, true)) < 0) {
return ret;
}*/
uart_flush_input(sp, true);
nfc_device * pnd = nfc_device_new(context, connstring);
if (!pnd) {
perror("nfc_device_new");
uart_close(sp);
return NFC_ESOFT;
}
pnd->driver = &rc522_uart_driver;
pnd->driver_data = malloc(sizeof(struct rc522_uart_data));
if (!pnd->driver_data) {
perror("malloc");
uart_close(sp);
nfc_device_free(pnd);
return NFC_ESOFT;
}
DRIVER_DATA(pnd)->port = sp;
DRIVER_DATA(pnd)->baudrate = userBaudRate;
// Alloc and init chip's data
if (rc522_data_new(pnd, &rc522_uart_io)) {
perror("rc522_data_new");
uart_close(sp);
nfc_device_free(pnd);
return NFC_ESOFT;
}
// Here we'll have to address several posibilities:
// - The hard reset trick did the work, and the RC522 is up and listening at 9600
// - The hard reset didn't work, but the RC522 hasn't been used yet and therefore listens at 9600
// - The hard reset didn't work and the RC522 is not using the default, so we'll use the custom provided baud rate
// Let's try first with boot baud rate
if (
!rc522_uart_test_baudrate(pnd, BOOT_BAUD_RATE) &&
!rc522_uart_test_baudrate(pnd, userBaudRate)
) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "Could not connect with RC522 at %d or %d bps.", BOOT_BAUD_RATE, userBaudRate);
rc522_uart_close(pnd);
return NFC_EIO;
}
*pndPtr = pnd;
return NFC_SUCCESS;
}
static nfc_device *
acr122_pcsc_open(const nfc_context *context, const nfc_connstring connstring)
{
struct acr122_pcsc_descriptor ndd;
int connstring_decode_level = connstring_decode(connstring, ACR122_PCSC_DRIVER_NAME, "pcsc", &ndd.pcsc_device_name, NULL);
if (connstring_decode_level < 1) {
return NULL;
}
nfc_connstring fullconnstring;
if (connstring_decode_level == 1) {
// Device was not specified, take the first one we can find
size_t szDeviceFound = acr122_pcsc_scan(context, &fullconnstring, 1);
if (szDeviceFound < 1)
return NULL;
connstring_decode_level = connstring_decode(fullconnstring, ACR122_PCSC_DRIVER_NAME, "pcsc", &ndd.pcsc_device_name, NULL);
if (connstring_decode_level < 2) {
return NULL;
}
} else {
memcpy(fullconnstring, connstring, sizeof(nfc_connstring));
}
if (strlen(ndd.pcsc_device_name) < 5) { // We can assume it's a reader ID as pcsc_name always ends with "NN NN"
// Device was not specified, only ID, retrieve it
size_t index;
if (sscanf(ndd.pcsc_device_name, "%4" SCNuPTR, &index) != 1) {
free(ndd.pcsc_device_name);
return NULL;
}
nfc_connstring *ncs = malloc(sizeof(nfc_connstring) * (index + 1));
if (!ncs) {
perror("malloc");
free(ndd.pcsc_device_name);
return NULL;
}
size_t szDeviceFound = acr122_pcsc_scan(context, ncs, index + 1);
if (szDeviceFound < index + 1) {
free(ncs);
free(ndd.pcsc_device_name);
return NULL;
}
strncpy(fullconnstring, ncs[index], sizeof(nfc_connstring));
fullconnstring[sizeof(nfc_connstring) - 1] = '\0';
free(ncs);
connstring_decode_level = connstring_decode(fullconnstring, ACR122_PCSC_DRIVER_NAME, "pcsc", &ndd.pcsc_device_name, NULL);
if (connstring_decode_level < 2) {
free(ndd.pcsc_device_name);
return NULL;
}
}
char *pcFirmware;
nfc_device *pnd = nfc_device_new(context, fullconnstring);
if (!pnd) {
perror("malloc");
goto error;
}
pnd->driver_data = malloc(sizeof(struct acr122_pcsc_data));
if (!pnd->driver_data) {
perror("malloc");
goto error;
}
// Alloc and init chip's data
if (pn53x_data_new(pnd, &acr122_pcsc_io) == NULL) {
perror("malloc");
goto error;
}
SCARDCONTEXT *pscc;
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "Attempt to open %s", ndd.pcsc_device_name);
// Test if context succeeded
if (!(pscc = acr122_pcsc_get_scardcontext()))
goto error;
// Test if we were able to connect to the "emulator" card
if (SCardConnect(*pscc, ndd.pcsc_device_name, SCARD_SHARE_EXCLUSIVE, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, &(DRIVER_DATA(pnd)->hCard), (void *) & (DRIVER_DATA(pnd)->ioCard.dwProtocol)) != SCARD_S_SUCCESS) {
// Connect to ACR122 firmware version >2.0
if (SCardConnect(*pscc, ndd.pcsc_device_name, SCARD_SHARE_DIRECT, 0, &(DRIVER_DATA(pnd)->hCard), (void *) & (DRIVER_DATA(pnd)->ioCard.dwProtocol)) != SCARD_S_SUCCESS) {
// We can not connect to this device.
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "%s", "PCSC connect failed");
goto error;
}
}
// Configure I/O settings for card communication
DRIVER_DATA(pnd)->ioCard.cbPciLength = sizeof(SCARD_IO_REQUEST);
// Retrieve the current firmware version
pcFirmware = acr122_pcsc_firmware(pnd);
if (strstr(pcFirmware, FIRMWARE_TEXT) != NULL) {
// Done, we found the reader we are looking for
snprintf(pnd->name, sizeof(pnd->name), "%s / %s", ndd.pcsc_device_name, pcFirmware);
// 50: empirical tuning on Touchatag
// 46: empirical tuning on ACR122U
CHIP_DATA(pnd)->timer_correction = 50;
pnd->driver = &acr122_pcsc_driver;
pn53x_init(pnd);
free(ndd.pcsc_device_name);
return pnd;
}
error:
free(ndd.pcsc_device_name);
nfc_device_free(pnd);
return NULL;
}
static nfc_device *
arygon_open(const nfc_context *context, const nfc_connstring connstring)
{
struct arygon_descriptor ndd;
char *speed_s;
int connstring_decode_level = connstring_decode(connstring, ARYGON_DRIVER_NAME, NULL, &ndd.port, &speed_s);
if (connstring_decode_level == 3) {
ndd.speed = 0;
if (sscanf(speed_s, "%10"PRIu32, &ndd.speed) != 1) {
// speed_s is not a number
free(ndd.port);
free(speed_s);
return NULL;
}
free(speed_s);
}
if (connstring_decode_level < 2) {
return NULL;
}
if (connstring_decode_level < 3) {
ndd.speed = ARYGON_DEFAULT_SPEED;
}
serial_port sp;
nfc_device *pnd = NULL;
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "Attempt to open: %s at %d baud.", ndd.port, ndd.speed);
sp = uart_open(ndd.port);
if (sp == INVALID_SERIAL_PORT)
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Invalid serial port: %s", ndd.port);
if (sp == CLAIMED_SERIAL_PORT)
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Serial port already claimed: %s", ndd.port);
if ((sp == CLAIMED_SERIAL_PORT) || (sp == INVALID_SERIAL_PORT)) {
free(ndd.port);
return NULL;
}
// We need to flush input to be sure first reply does not comes from older byte transceive
uart_flush_input(sp, true);
uart_set_speed(sp, ndd.speed);
// We have a connection
pnd = nfc_device_new(context, connstring);
if (!pnd) {
perror("malloc");
free(ndd.port);
uart_close(sp);
return NULL;
}
snprintf(pnd->name, sizeof(pnd->name), "%s:%s", ARYGON_DRIVER_NAME, ndd.port);
free(ndd.port);
pnd->driver_data = malloc(sizeof(struct arygon_data));
if (!pnd->driver_data) {
perror("malloc");
uart_close(sp);
nfc_device_free(pnd);
return NULL;
}
DRIVER_DATA(pnd)->port = sp;
// Alloc and init chip's data
if (pn53x_data_new(pnd, &arygon_tama_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
return NULL;
}
// The PN53x chip opened to ARYGON MCU doesn't seems to be in LowVBat mode
CHIP_DATA(pnd)->power_mode = NORMAL;
// empirical tuning
CHIP_DATA(pnd)->timer_correction = 46;
pnd->driver = &arygon_driver;
#ifndef WIN32
// pipe-based abort mecanism
if (pipe(DRIVER_DATA(pnd)->iAbortFds) < 0) {
uart_close(DRIVER_DATA(pnd)->port);
pn53x_data_free(pnd);
nfc_device_free(pnd);
return NULL;
}
#else
DRIVER_DATA(pnd)->abort_flag = false;
#endif
// Check communication using "Reset TAMA" command
if (arygon_reset_tama(pnd) < 0) {
arygon_close_step2(pnd);
return NULL;
}
char arygon_firmware_version[10];
arygon_firmware(pnd, arygon_firmware_version);
char *pcName;
pcName = strdup(pnd->name);
snprintf(pnd->name, sizeof(pnd->name), "%s %s", pcName, arygon_firmware_version);
free(pcName);
pn53x_init(pnd);
return pnd;
}
static size_t
arygon_scan(const nfc_context *context, nfc_connstring connstrings[], const size_t connstrings_len)
{
size_t device_found = 0;
serial_port sp;
char **acPorts = uart_list_ports();
const char *acPort;
int iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
sp = uart_open(acPort);
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "Trying to find ARYGON device on serial port: %s at %d baud.", acPort, ARYGON_DEFAULT_SPEED);
if ((sp != INVALID_SERIAL_PORT) && (sp != CLAIMED_SERIAL_PORT)) {
// We need to flush input to be sure first reply does not comes from older byte transceive
uart_flush_input(sp, true);
uart_set_speed(sp, ARYGON_DEFAULT_SPEED);
nfc_connstring connstring;
snprintf(connstring, sizeof(nfc_connstring), "%s:%s:%"PRIu32, ARYGON_DRIVER_NAME, acPort, ARYGON_DEFAULT_SPEED);
nfc_device *pnd = nfc_device_new(context, connstring);
if (!pnd) {
perror("malloc");
uart_close(sp);
iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
free((void *)acPort);
}
free(acPorts);
return 0;
}
pnd->driver = &arygon_driver;
pnd->driver_data = malloc(sizeof(struct arygon_data));
if (!pnd->driver_data) {
perror("malloc");
uart_close(sp);
nfc_device_free(pnd);
iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
free((void *)acPort);
}
free(acPorts);
return 0;
}
DRIVER_DATA(pnd)->port = sp;
// Alloc and init chip's data
if (pn53x_data_new(pnd, &arygon_tama_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
free((void *)acPort);
}
free(acPorts);
return 0;
}
#ifndef WIN32
// pipe-based abort mecanism
if (pipe(DRIVER_DATA(pnd)->iAbortFds) < 0) {
uart_close(DRIVER_DATA(pnd)->port);
pn53x_data_free(pnd);
nfc_device_free(pnd);
iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
free((void *)acPort);
}
free(acPorts);
return 0;
}
#else
DRIVER_DATA(pnd)->abort_flag = false;
#endif
int res = arygon_reset_tama(pnd);
uart_close(DRIVER_DATA(pnd)->port);
pn53x_data_free(pnd);
nfc_device_free(pnd);
if (res < 0) {
continue;
}
// ARYGON reader is found
memcpy(connstrings[device_found], connstring, sizeof(nfc_connstring));
device_found++;
// Test if we reach the maximum "wanted" devices
if (device_found >= connstrings_len)
break;
}
}
iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
free((void *)acPort);
}
free(acPorts);
return device_found;
}
bool
pn532_uart_probe (nfc_connstring connstrings[], size_t connstrings_len, size_t *pszDeviceFound)
{
/** @note: Due to UART bus we can't know if its really a pn532 without
* sending some PN53x commands. But using this way to probe devices, we can
* have serious problem with other device on this bus */
#ifndef SERIAL_AUTOPROBE_ENABLED
(void) connstrings;
(void) connstrings_len;
*pszDeviceFound = 0;
log_put (LOG_CATEGORY, NFC_PRIORITY_INFO, "%s", "Serial auto-probing have been disabled at compile time. Skipping autoprobe.");
return false;
#else /* SERIAL_AUTOPROBE_ENABLED */
*pszDeviceFound = 0;
serial_port sp;
char **acPorts = uart_list_ports ();
const char *acPort;
int iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
sp = uart_open (acPort);
log_put (LOG_CATEGORY, NFC_PRIORITY_TRACE, "Trying to find PN532 device on serial port: %s at %d bauds.", acPort, PN532_UART_DEFAULT_SPEED);
if ((sp != INVALID_SERIAL_PORT) && (sp != CLAIMED_SERIAL_PORT)) {
// We need to flush input to be sure first reply does not comes from older byte transceive
uart_flush_input (sp);
// Serial port claimed but we need to check if a PN532_UART is opened.
uart_set_speed (sp, PN532_UART_DEFAULT_SPEED);
nfc_connstring connstring;
snprintf (connstring, sizeof(nfc_connstring), "%s:%s:%"PRIu32, PN532_UART_DRIVER_NAME, acPort, PN532_UART_DEFAULT_SPEED);
nfc_device *pnd = nfc_device_new (connstring);
pnd->driver = &pn532_uart_driver;
pnd->driver_data = malloc(sizeof(struct pn532_uart_data));
DRIVER_DATA (pnd)->port = sp;
// Alloc and init chip's data
pn53x_data_new (pnd, &pn532_uart_io);
// SAMConfiguration command if needed to wakeup the chip and pn53x_SAMConfiguration check if the chip is a PN532
CHIP_DATA (pnd)->type = PN532;
// This device starts in LowVBat power mode
CHIP_DATA (pnd)->power_mode = LOWVBAT;
#ifndef WIN32
// pipe-based abort mecanism
pipe (DRIVER_DATA (pnd)->iAbortFds);
#else
DRIVER_DATA (pnd)->abort_flag = false;
#endif
// Check communication using "Diagnose" command, with "Communication test" (0x00)
int res = pn53x_check_communication (pnd);
pn53x_data_free (pnd);
nfc_device_free (pnd);
uart_close (sp);
if(res < 0) {
continue;
}
memcpy (connstrings[*pszDeviceFound], connstring, sizeof (nfc_connstring));
(*pszDeviceFound)++;
// Test if we reach the maximum "wanted" devices
if ((*pszDeviceFound) >= connstrings_len)
break;
}
}
iDevice = 0;
while ((acPort = acPorts[iDevice++])) {
free ((void*)acPort);
}
free (acPorts);
#endif /* SERIAL_AUTOPROBE_ENABLED */
return true;
}
