libnfc/examples/pn53x-diagnose.c

/*-
 * Public platform independent Near Field Communication (NFC) library examples
 * 
 * Copyright (C) 2010, Romuald Conty
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *  1) Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer. 
 *  2 )Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Note that this license only applies on the examples, NFC library itself is under LGPL
 *
 */

/** 
 * @file pn53x-diagnose.c
 * @brief Small application to diagnose PN53x using dedicated commands
 */
#include <err.h>
#include <stdlib.h>
#include <string.h>

#include <nfc/nfc.h>

#include "nfc-utils.h"
#include "chips/pn53x.h"
#include "chips/pn53x-internal.h"

#define MAX_DEVICE_COUNT 16

int
main (int argc, const char *argv[])
{
  size_t  szFound;
  size_t  i;
  nfc_device_t *pnd;
  nfc_device_desc_t *pnddDevices;
  const char *acLibnfcVersion;
  bool    result;

  byte_t  abtRx[PN53x_EXTENDED_FRAME__DATA_MAX_LEN];
  size_t  szRx = sizeof(abtRx);
  const byte_t pncmd_diagnose_communication_line_test[] = { Diagnose, 0x00, 0x06, 'l', 'i', 'b', 'n', 'f', 'c' };
  const byte_t pncmd_diagnose_rom_test[] = { Diagnose, 0x01 };
  const byte_t pncmd_diagnose_ram_test[] = { Diagnose, 0x02 };

  if (argc > 1) {
    errx (1, "usage: %s", argv[0]);
  }
  // Display libnfc version
  acLibnfcVersion = nfc_version ();
  printf ("%s use libnfc %s\n", argv[0], acLibnfcVersion);

  if (!(pnddDevices = malloc (MAX_DEVICE_COUNT * sizeof (*pnddDevices)))) {
    fprintf (stderr, "malloc() failed\n");
    return EXIT_FAILURE;
  }

  nfc_list_devices (pnddDevices, MAX_DEVICE_COUNT, &szFound);

  if (szFound == 0) {
    printf ("No NFC device found.\n");
  }

  for (i = 0; i < szFound; i++) {
    pnd = nfc_connect (&(pnddDevices[i]));

    if (pnd == NULL) {
      ERR ("%s", "Unable to connect to NFC device.");
      return EXIT_FAILURE;
    }

    printf ("NFC device [%s] connected.\n", pnd->acName);

    result = pn53x_transceive (pnd, pncmd_diagnose_communication_line_test, sizeof (pncmd_diagnose_communication_line_test), abtRx, &szRx);
    if (result) {
      result = (memcmp (pncmd_diagnose_communication_line_test + 1, abtRx, sizeof (pncmd_diagnose_communication_line_test) - 1) == 0);
    } else {
      nfc_perror (pnd, "pn53x_transceive");
    }
    printf (" Communication line test: %s\n", result ? "OK" : "Failed");

    result = pn53x_transceive (pnd, pncmd_diagnose_rom_test, sizeof (pncmd_diagnose_rom_test), abtRx, &szRx);
    if (result) {
      result = ((szRx == 1) && (abtRx[0] == 0x00));
    } else {
      nfc_perror (pnd, "pn53x_transceive");
    }
    printf (" ROM test: %s\n", result ? "OK" : "Failed");

    result = pn53x_transceive (pnd, pncmd_diagnose_ram_test, sizeof (pncmd_diagnose_ram_test), abtRx, &szRx);
    if (result) {
      result = ((szRx == 1) && (abtRx[0] == 0x00));
    } else {
      nfc_perror (pnd, "pn53x_transceive");
    }
    printf (" RAM test: %s\n", result ? "OK" : "Failed");
  }
}