librfid/src/rfid_reader.c

66 lines
1.7 KiB
C

/* librfid - core reader handling
* (C) 2005 by Harald Welte <laforge@gnumonks.org>
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <stdio.h>
#include <librfid/rfid.h>
#include <librfid/rfid_reader.h>
static struct rfid_reader *rfid_reader_list;
struct rfid_reader_handle *
rfid_reader_open(void *data, unsigned int id)
{
struct rfid_reader *p;
for (p = rfid_reader_list; p; p = p->next)
if (p->id == id)
return p->open(data);
DEBUGP("unable to find matching reader\n");
return NULL;
}
int
rfid_reader_transcieve(struct rfid_reader_handle *rh,
enum rfid_frametype frametype,
const unsigned char *tx_buf, unsigned int len,
unsigned char *rx_buf, unsigned int *rx_len,
u_int64_t timeout, unsigned int flags)
{
return rh->reader->transcieve(rh, frametype, tx_buf, len, rx_buf,
rx_len, timeout, flags);
}
void
rfid_reader_close(struct rfid_reader_handle *rh)
{
rh->reader->close(rh);
}
int
rfid_reader_register(struct rfid_reader *r)
{
r->next = rfid_reader_list;
rfid_reader_list = r;
return 0;
}