/* ISO 15693 anticollision implementation
*
- * (C) 2005-2006 by Harald Welte <laforge@gnumonks.org>
- *
+ * (C) 2005-2008 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2007 by Bjoern Riemer <bjoern.riemer@web.de>
*/
/*
*
* 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
+#define DEBUG_LIBRFID
+
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
+#include <errno.h>
#include <librfid/rfid.h>
#include <librfid/rfid_layer2.h>
u_int8_t blocknum;
} __attribute__ ((packed));
+struct iso15693_request_adressed {
+ struct iso15693_request head;
+ u_int64_t uid;
+} __attribute__ ((packed));
+
#define ISO15693_BLOCK_SIZE_MAX (256/8)
#define ISO15693_RESP_SIZE_MAX (4+ISO15693_BLOCK_SIZE_MAX)
+#define TIMEOUT 200
+
+static int iso15693_transceive(struct rfid_layer2_handle *handle,
+ enum rfid_frametype frametype,
+ const unsigned char *tx_buf, unsigned int tx_len,
+ unsigned char *rx_buf, unsigned int *rx_len,
+ u_int64_t timeout, unsigned int flags)
+{
+ return handle->rh->reader->transceive(handle->rh, frametype, tx_buf,
+ tx_len, rx_buf, rx_len, timeout, flags);
+}
+
+/* Transmit an anticollission frame */
+static int
+iso15693_transceive_acf(struct rfid_layer2_handle *handle,
+ struct iso15693_anticol_cmd *acf,
+ unsigned char uuid[ISO15693_UID_LEN],
+ char *bit_of_col)
+{
+ struct rfid_reader *rdr = handle->rh->reader;
+ if (!rdr->iso15693.transceive_ac)
+ return -1;
+ return rdr->iso15693.transceive_ac(handle->rh, acf, uuid, bit_of_col);
+}
+
#if 0
+
static int
iso15693_read_block(struct rfid_layer2_handle *handle,
u_int8_t blocknr, u_int32_t *data)
static int
iso15693_anticol(struct rfid_layer2_handle *handle)
+{
+ int i, ret;
+ int rx_len = 0;
+ int num_valid = 0;
+ struct iso15693_anticol_cmd acf;
+ char uuid[ISO15693_UID_LEN];
+ char boc;
+
+ char uuid_list[16][ISO15693_UID_LEN];
+ int uuid_list_valid[16];
+
+#define MY_NONE 0
+#define MY_COLL 1
+#define MY_UUID 2
+
+ memset(uuid_list_valid, MY_NONE, 16);
+ memset(uuid_list, 0, ISO15693_UID_LEN * 16);
+
+ memset(&acf, 0, sizeof(struct iso15693_anticol_cmd));
+ acf.afi = 0;
+ acf.flags = RFID_15693_F5_NSLOTS_1 | /* comment out for 16 slots */
+ RFID_15693_F_INV_TABLE_5 |
+ RFID_15693_F_RATE_HIGH;
+ //RFID_15693_F_SUBC_TWO
+ acf.mask_len = 0;
+ //acf.mask_bits[0] = 3;
+ acf.current_slot = 0;
+
+ if (acf.flags & RFID_15693_F5_NSLOTS_1)
+ i = 1;
+ else
+ i = 16;
+ for (; i >=1; i--) {
+ //acf.current_slot=0;
+ ret = iso15693_transceive_acf(handle, &acf, &uuid[0], &boc);
+ switch (ret) {
+ case -ETIMEDOUT:
+ DEBUGP("no answer from vicc in slot %d\n",
+ acf.current_slot);
+ uuid_list_valid[acf.current_slot] = MY_NONE;
+ break;
+ case -ECOLLISION:
+ DEBUGP("Collision during anticol. slot %d bit %d\n",
+ acf.current_slot,boc);
+ uuid_list_valid[acf.current_slot] = -boc;
+ memcpy(uuid_list[acf.current_slot], uuid, ISO15693_UID_LEN);
+ break;
+ default:
+ if (ret < 0) {
+ DEBUGP("ERROR ret: %d, slot %d\n", ret,
+ acf.current_slot);
+ uuid_list_valid[acf.current_slot] = MY_NONE;
+ } else {
+ DEBUGP("Slot %d ret: %d UUID: %s\n",
+ acf.current_slot, ret,
+ rfid_hexdump(uuid, ISO15693_UID_LEN));
+ uuid_list_valid[acf.current_slot] = MY_UUID;
+ memcpy(&uuid_list[acf.current_slot][0], uuid,
+ ISO15693_UID_LEN);
+ }
+ }
+ usleep(1000*200);
+ }
+ if (acf.flags & RFID_15693_F5_NSLOTS_1)
+ i = 1;
+ else
+ i = 16;
+
+ while (i) {
+ if (uuid_list_valid[i] == MY_NONE) {
+ DEBUGP("slot[%d]: timeout\n",i);
+ } else if (uuid_list_valid[i] == MY_UUID) {
+ DEBUGP("slot[%d]: VALID uuid: %s\n", i,
+ rfid_hexdump(uuid_list[i], ISO15693_UID_LEN));
+ num_valid++;
+ } else if (uuid_list_valid[i] < 0) {
+ DEBUGP("slot[%d]: collision(%d %d,%d) uuid: %s\n",
+ i,uuid_list_valid[i]*-1,
+ (uuid_list_valid[i]*-1)/8,
+ (uuid_list_valid[i]*-1)%8,
+ rfid_hexdump(uuid_list[i], ISO15693_UID_LEN));
+ }
+ i--;
+ }
+ if (num_valid == 0)
+ return -1;
+
+ return num_valid;
+}
+
+static int
+iso15693_select(struct rfid_layer2_handle *handle)
+{
+ struct iso15693_request_adressed tx_req;
+ int ret;
+ unsigned int rx_len, tx_len;
+
+ struct {
+ struct iso15693_response head;
+ u_int8_t error;
+ unsigned char crc[2];
+ } rx_buf;
+ rx_len = sizeof(rx_buf);
+
+ tx_req.head.command = ISO15693_CMD_SELECT;
+ tx_req.head.flags = RFID_15693_F4_ADDRESS | RFID_15693_F_SUBC_TWO ;
+ tx_req.uid = 0xE0070000020C1F18;
+ //req.uid = 0x181F0C02000007E0;
+ //req.uid = 0xe004010001950837;
+ //req.uid = 0x37089501000104e0;
+ tx_len = sizeof(tx_req);
+ DEBUGP("tx_len=%u", tx_len); DEBUGPC(" rx_len=%u\n",rx_len);
+ ret = iso15693_transceive(handle, RFID_15693_FRAME, (u_int8_t*)&tx_req,
+ tx_len, (u_int8_t*)&rx_buf, &rx_len, 50,0);
+ DEBUGP("ret: %d, error_flag: %d error: %d\n", ret,
+ rx_buf.head.flags&RFID_15693_RF_ERROR, 0);
+ return -1;
+}
+
+static int
+iso15693_getopt(struct rfid_layer2_handle *handle,
+ int optname, void *optval, unsigned int *optlen)
+{
+ switch (optname) {
+ case RFID_OPT_15693_MOD_DEPTH:
+ case RFID_OPT_15693_VCD_CODING:
+ case RFID_OPT_15693_VICC_SUBC:
+ case RFID_OPT_15693_VICC_SPEED:
+ default:
+ return -EINVAL;
+ break;
+ }
+ return 0;
+}
+
+static int
+iso15693_setopt(struct rfid_layer2_handle *handle, int optname,
+ const void *optval, unsigned int optlen)
+{
+ switch (optname) {
+ case RFID_OPT_15693_MOD_DEPTH:
+ case RFID_OPT_15693_VCD_CODING:
+ case RFID_OPT_15693_VICC_SUBC:
+ case RFID_OPT_15693_VICC_SPEED:
+ default:
+ return -EINVAL;
+ break;
+ }
+ return 0;
+}
+
+static int transceive_inventory(struct rfid_layer2_handle *l2h)
{
return -1;
}
.fn = {
.init = &iso15693_init,
.open = &iso15693_anticol,
+ //.open = &iso15693_select,
//.transceive = &iso15693_transceive,
//.close = &iso14443a_hlta,
.fini = &iso15693_fini,
+ .setopt = &iso15693_setopt,
+ .getopt = &iso15693_getopt,
},
};
projects / librfid / blobdiff