/**
 * Public platform independent Near Field Communication (NFC) library
 * 
 * Copyright (C) 2009, Roel Verdult
 * 
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 * 
 * 
 * @file pn531_usb.c
 * @brief Driver for PN531 chip using USB
 */

/*
Thanks to d18c7db and Okko for example code
*/

#include <stdlib.h>

#include "../drivers.h"
#include <nfc/nfc-messages.h>

nfc_device_desc_t * pn531_usb_pick_device (void)
{
  nfc_device_desc_t *pndd;

  if ((pndd = malloc (sizeof (*pndd))))
  {
    size_t szN;

    if (!pn531_usb_list_devices (pndd, 1, &szN))
    {
      DBG("%s", "pn531_usb_list_devices failed");
      return NULL;
    }

    if (szN == 0)
    {
      DBG("%s", "No device found");
      return NULL;
    }
  }
  return pndd;
}

bool pn531_usb_list_devices(nfc_device_desc_t pnddDevices[], size_t szDevices, size_t *pszDeviceFound)
{
  // array of {vendor,product} pairs for USB devices
  usb_candidate_t candidates[]= {{0x04CC,0x0531},{0x054c,0x0193}};

  return pn53x_usb_list_devices(&pnddDevices[0], szDevices, pszDeviceFound, &candidates[0], sizeof(candidates) / sizeof(usb_candidate_t),PN531_USB_DRIVER_NAME);
}

nfc_device_t* pn531_usb_connect(const nfc_device_desc_t* pndd)
{
  return pn53x_usb_connect(pndd, pndd->acDevice, NC_PN531);
}