1 /* librfid - layer 2 protocol handler
2 * (C) 2005 by Harald Welte <laforge@gnumonks.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <librfid/rfid.h>
25 #include <librfid/rfid_layer2.h>
27 static struct rfid_layer2 *rfid_layer2_list;
29 struct rfid_layer2_handle *
30 rfid_layer2_init(struct rfid_reader_handle *rh, unsigned int id)
32 struct rfid_layer2 *p;
34 for (p = rfid_layer2_list; p; p = p->next)
36 return p->fn.init(rh);
38 DEBUGP("unable to find matching layer2 protocol\n");
43 rfid_layer2_open(struct rfid_layer2_handle *ph)
48 return ph->l2->fn.open(ph);
52 rfid_layer2_transcieve(struct rfid_layer2_handle *ph,
53 enum rfid_frametype frametype,
54 const unsigned char *tx_buf, unsigned int len,
55 unsigned char *rx_buf, unsigned int *rx_len,
56 u_int64_t timeout, unsigned int flags)
58 if (!ph->l2->fn.transcieve)
61 return ph->l2->fn.transcieve(ph, frametype, tx_buf, len, rx_buf,
62 rx_len, timeout, flags);
65 int rfid_layer2_fini(struct rfid_layer2_handle *ph)
70 return ph->l2->fn.fini(ph);
74 rfid_layer2_close(struct rfid_layer2_handle *ph)
76 if (!ph->l2->fn.close)
79 return ph->l2->fn.close(ph);
83 rfid_layer2_register(struct rfid_layer2 *p)
85 p->next = rfid_layer2_list;
92 rfid_layer2_getopt(struct rfid_layer2_handle *ph, int optname,
93 void *optval, unsigned int *optlen)
95 if (!ph->l2->fn.getopt)
98 return ph->l2->fn.getopt(ph, optname, optval, optlen);
102 rfid_layer2_setopt(struct rfid_layer2_handle *ph, int optname,
103 const void *optval, unsigned int optlen)
105 if (!ph->l2->fn.setopt)
108 return ph->l2->fn.setopt(ph, optname, optval, optlen);