libnfc  1.4.2
pn533_usb.c
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00001 /*-
00002  * Public platform independent Near Field Communication (NFC) library
00003  * 
00004  * Copyright (C) 2009, Roel Verdult
00005  * 
00006  * This program is free software: you can redistribute it and/or modify it
00007  * under the terms of the GNU Lesser General Public License as published by the
00008  * Free Software Foundation, either version 3 of the License, or (at your
00009  * option) any later version.
00010  * 
00011  * This program is distributed in the hope that it will be useful, but WITHOUT
00012  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00013  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
00014  * more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public License
00017  * along with this program.  If not, see <http://www.gnu.org/licenses/>
00018  */
00019 
00025 /*
00026 Thanks to d18c7db and Okko for example code
00027 */
00028 
00029 #ifdef HAVE_CONFIG_H
00030 #  include "config.h"
00031 #endif // HAVE_CONFIG_H
00032 
00033 #include <stdlib.h>
00034 
00035 #include "../drivers.h"
00036 #include <nfc/nfc-messages.h>
00037 
00038 nfc_device_desc_t *
00039 pn533_usb_pick_device (void)
00040 {
00041   nfc_device_desc_t *pndd;
00042 
00043   if ((pndd = malloc (sizeof (*pndd)))) {
00044     size_t  szN;
00045 
00046     if (!pn533_usb_list_devices (pndd, 1, &szN)) {
00047       DBG ("%s", "pn533_usb_list_devices failed");
00048       free (pndd);
00049       return NULL;
00050     }
00051 
00052     if (szN == 0) {
00053       DBG ("%s", "No device found");
00054       free (pndd);
00055       return NULL;
00056     }
00057   }
00058 
00059   return pndd;
00060 }
00061 
00062 bool
00063 pn533_usb_list_devices (nfc_device_desc_t pnddDevices[], size_t szDevices, size_t * pszDeviceFound)
00064 {
00065   // array of {vendor,product} pairs for USB devices
00066   usb_candidate_t candidates[] = { 
00067     { 0x04CC, 0x2533 }, // NXP - PN533
00068     { 0x04E6, 0x5591 }, // SCM Micro - SCL3711-NFC&RW
00069     { 0x1FD3, 0x0608 }  // ASK - LoGO
00070   };
00071 
00072   return pn53x_usb_list_devices (&pnddDevices[0], szDevices, pszDeviceFound, &candidates[0],
00073                                  sizeof (candidates) / sizeof (usb_candidate_t), PN533_USB_DRIVER_NAME);
00074 }
00075 
00076 nfc_device_t *
00077 pn533_usb_connect (const nfc_device_desc_t * pndd)
00078 {
00079   return pn53x_usb_connect (pndd, pndd->acDevice, NC_PN533);
00080 }
00081 
00082 void
00083 pn533_usb_init (nfc_device_t * pnd)
00084 {
00085     usb_spec_t* pus = (usb_spec_t*) pnd->nds;
00086     DBG ("pus->uc.idVendor == 0x%04x, pus->uc.idProduct == 0x%04x", pus->uc.idVendor, pus->uc.idProduct);
00087     if ((pus->uc.idVendor == 0x1FD3) && (pus->uc.idProduct == 0x0608)) { // ASK - LoGO
00088       DBG ("ASK LoGO initialization.");
00089       pn53x_set_reg (pnd, 0x6106, 0xFF, 0x1B);
00090       pn53x_set_reg (pnd, 0x6306, 0xFF, 0x14);
00091       pn53x_set_reg (pnd, 0xFFFD, 0xFF, 0x37);
00092       pn53x_set_reg (pnd, 0xFFB0, 0xFF, 0x3B);
00093     }
00094 }
00095