2 /* Mifare Ultralight implementation, PCD side.
4 * (C) 2005 by Harald Welte <laforge@gnumonks.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2
11 * as published by the Free Software Foundation
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 #include <rfid/rfid.h>
29 #include <rfid/rfid_protocol.h>
30 #include <rfid/rfid_layer2.h>
31 //#include <rfid/rfid_layer2_iso14443b.h>
33 //#include <rfid/rfid_asic.h>
34 //#include <rfid/rfid_reader.h>
36 #include "rfid_iso14443_common.h"
39 #define MIFARE_UL_CMD_WRITE 0xA2
40 #define MIFARE_UL_CMD_READ 0x30
43 #define MIFARE_UL_READ_FWT 100
44 #define MIFARE_UL_WRITE_FWT 100
47 mful_read(struct rfid_protocol_handle *ph, unsigned int page,
48 unsigned char *rx_data, unsigned int *rx_len)
50 unsigned char rx_buf[16];
51 unsigned int real_rx_len = sizeof(rx_buf);
58 tx[0] = MIFARE_UL_CMD_READ;
61 ret = ph->l2h->l2->fn.transcieve(ph->l2h, tx, sizeof(tx), rx_buf,
62 &real_rx_len, MIFARE_UL_READ_FWT, 0);
67 if (real_rx_len < *rx_len)
68 *rx_len = real_rx_len;
70 memcpy(rx_data, rx_buf, *rx_len);
76 mful_write(struct rfid_protocol_handle *ph, unsigned int page,
77 unsigned char *tx_data, unsigned int tx_len)
85 if (tx_len != 4 || page > 7)
88 tx[0] = MIFARE_UL_CMD_WRITE;
91 for (i = 0; i < 4; i++)
94 ret = ph->l2h->l2->fn.transcieve(ph->l2h, tx, sizeof(tx), rx,
95 &rx_len, MIFARE_UL_WRITE_FWT, 0);
97 /* FIXME:look at RX, check for ACK/NAK */
103 mful_transcieve(struct rfid_protocol_handle *ph,
104 const unsigned char *tx_data, unsigned int tx_len,
105 unsigned char *rx_data, unsigned int *rx_len,
106 unsigned int timeout, unsigned int flags)
111 static struct rfid_protocol_handle *
112 mful_init(struct rfid_layer2_handle *l2h)
114 struct rfid_protocol_handle *ph;
115 ph = malloc(sizeof(struct rfid_protocol_handle));
119 static int mful_fini(struct rfid_protocol_handle *ph)
125 struct rfid_protocol rfid_protocol_mful = {
126 .id = RFID_PROTOCOL_MIFARE_UL,
127 .name = "Mifare Ultralight",
130 /* .transcieve = &mful_transcieve,*/
132 .write = &mful_write,