git.rot13.org Git - librfid/blob - rfid_layer2.c

   1 /* librfid - layer 2 protocol handler
   2  * (C) 2005 by Harald Welte <laforge@gnumonks.org>
   3  */
   4 #include <stdlib.h>
   5 #include <stdio.h>
   6
   7 #include <rfid/rfid.h>
   8 #include <rfid/rfid_layer2.h>
   9
  10 static struct rfid_layer2 *rfid_layer2_list;
  11
  12 struct rfid_layer2_handle *
  13 rfid_layer2_init(struct rfid_reader_handle *rh, unsigned int id)
  14 {
  15         struct rfid_layer2 *p;
  16
  17         for (p = rfid_layer2_list; p; p = p->next)
  18                 if (p->id == id)
  19                         return p->fn.init(rh);
  20
  21         DEBUGP("unable to find matching layer2 protocol\n");
  22         return NULL;
  23 }
  24
  25 int
  26 rfid_layer2_open(struct rfid_layer2_handle *ph)
  27 {
  28         return ph->l2->fn.open(ph);
  29 }
  30
  31 int
  32 rfid_layer2_transcieve(struct rfid_layer2_handle *ph,
  33                          const unsigned char *tx_buf, unsigned int len,
  34                          unsigned char *rx_buf, unsigned int *rx_len,
  35                          unsigned int timeout, unsigned int flags)
  36 {
  37         return ph->l2->fn.transcieve(ph, tx_buf, len, rx_buf, rx_len,
  38                                         timeout, flags);
  39 }
  40
  41 int rfid_layer2_fini(struct rfid_layer2_handle *ph)
  42 {
  43         return ph->l2->fn.fini(ph);
  44 }
  45
  46 int
  47 rfid_layer2_close(struct rfid_layer2_handle *ph)
  48 {
  49         return ph->l2->fn.close(ph);
  50 }
  51
  52 int
  53 rfid_layer2_register(struct rfid_layer2 *p)
  54 {
  55         p->next = rfid_layer2_list;
  56         rfid_layer2_list = p;
  57
  58         return 0;
  59 }