/* ISO 15693 anticollision implementation
*
- * (C) 2005 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2005-2006 by Harald Welte <laforge@gnumonks.org>
*
*/
*
* 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
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
+#include <errno.h>
-#include <rfid/rfid.h>
-#include <rfid/rfid_layer2.h>
-#include <rfid/rfid_reader.h>
-#include <rfid/rfid_layer2_iso15693.h>
+#include <librfid/rfid.h>
+#include <librfid/rfid_layer2.h>
+#include <librfid/rfid_reader.h>
+#include <librfid/rfid_layer2_iso15693.h>
-#if 0
-/* Transcieve a 7-bit short frame */
-static int
-iso14443a_transcieve_sf(struct rfid_layer2_handle *handle,
- unsigned char cmd,
- struct iso14443a_atqa *atqa)
-{
- struct rfid_reader *rdr = handle->rh->reader;
+struct iso15693_request_read {
+ struct iso15693_request req;
+ u_int64_t uid;
+ u_int8_t blocknum;
+} __attribute__ ((packed));
- return rdr->iso14443a.transcieve_sf(handle->rh, cmd, atqa);
-}
+#define ISO15693_BLOCK_SIZE_MAX (256/8)
+#define ISO15693_RESP_SIZE_MAX (4+ISO15693_BLOCK_SIZE_MAX)
-/* Transmit an anticollission bit frame */
+#if 0
static int
-iso14443a_transcieve_acf(struct rfid_layer2_handle *handle,
- struct iso14443a_anticol_cmd *acf,
- unsigned int *bit_of_col)
-{
- struct rfid_reader *rdr = handle->rh->reader;
-
- return rdr->iso14443a.transcieve_acf(handle->rh, acf, bit_of_col);
-}
-
-/* Transmit a regular frame */
-static int
-iso14443a_transcieve(struct rfid_layer2_handle *handle,
- const unsigned char *tx_buf, unsigned int tx_len,
- unsigned char *rx_buf, unsigned int *rx_len,
- u_int64_t, unsigned int flags)
+iso15693_read_block(struct rfid_layer2_handle *handle,
+ u_int8_t blocknr, u_int32_t *data)
{
- return handle->rh->reader->transcieve(handle->rh, tx_buf, tx_len,
- rx_buf, rx_len, timeout, flags);
-}
+ int rc;
+ struct iso15693_request_read req;
+ u_int8_t resp[ISO15693_RESP_SIZE_MAX];
-static int
-iso14443a_code_nvb_bits(unsigned char *nvb, unsigned int bits)
-{
- unsigned int byte_count = bits / 8;
- unsigned int bit_count = bits % 8;
+ req.req.flags = 0;
+ req.command = ISO15693_CMD_READ_BLOCK_SINGLE;
+ memcpy(&req.uid, handle->..., ISO15693_UID_LEN);
+ req.blocknum = blocknr;
- if (byte_count < 2 || byte_count > 7)
- return -1;
+ /* FIXME: fill CRC if required */
- *nvb = ((byte_count & 0xf) << 4) | bit_count;
+ rc = iso15693_transceive(... &req, ..., );
- return 0;
-}
+ if (rc < 0)
+ return rc;
-/* first bit is '1', second bit '2' */
-static void
-set_bit_in_field(unsigned char *bitfield, unsigned int bit)
-{
- unsigned int byte_count = bit / 8;
- unsigned int bit_count = bit % 8;
+ memcpy(data, resp+1, rc-1); /* FIXME rc-3 in case of CRC */
- DEBUGP("bitfield=%p, byte_count=%u, bit_count=%u\n",
- bitfield, byte_count, bit_count);
- DEBUGP("%p = 0x%02x\n", (bitfield+byte_count), *(bitfield+byte_count));
- *(bitfield+byte_count) |= 1 << (bit_count-1);
- DEBUGP("%p = 0x%02x\n", (bitfield+byte_count), *(bitfield+byte_count));
+ return rc-1;
}
static int
-iso14443a_anticol(struct rfid_layer2_handle *handle)
+iso15693_write_block()
{
- int ret;
- unsigned int uid_size;
- struct iso14443a_atqa atqa;
- struct iso14443a_anticol_cmd acf;
- unsigned int bit_of_col;
- unsigned char sak[3];
- unsigned char uid[10]; // triple size equals 10 bytes;
- unsigned int rx_len = sizeof(sak);
- char *aqptr = (char *) &atqa;
- static int first = 0;
-
- memset(uid, 0, sizeof(uid));
- memset(sak, 0, sizeof(sak));
- memset(&atqa, 0, sizeof(atqa));
- memset(&acf, 0, sizeof(acf));
-
- if (first == 0) {
- DEBUGP("Sending REQA\n");
- ret = iso14443a_transcieve_sf(handle, ISO14443A_SF_CMD_REQA, &atqa);
- first = 1;
- } else {
- DEBUGP("Sending WUPA\n");
- ret = iso14443a_transcieve_sf(handle, ISO14443A_SF_CMD_WUPA, &atqa);
- }
-
- if (ret < 0) {
- handle->priv.iso14443a.state = ISO14443A_STATE_REQA_SENT;
- DEBUGP("error during transcieve_sf: %d\n", ret);
- return ret;
- }
- handle->priv.iso14443a.state = ISO14443A_STATE_ATQA_RCVD;
+ struct iso16593_request_read *rreq;
+ u_int32_t buf[sizeof(req)+ISO15693_BLOCK_SIZE_MAX];
- DEBUGP("ATQA: 0x%02x 0x%02x\n", *aqptr, *(aqptr+1));
+ rreq = (struct iso15693_request_read *) req;
- if (!atqa.bf_anticol) {
- handle->priv.iso14443a.state =ISO14443A_STATE_NO_BITFRAME_ANTICOL;
- DEBUGP("no bitframe anticollission bits set, aborting\n");
- return -1;
- }
-
- if (atqa.uid_size == 2 || atqa.uid_size == 3)
- uid_size = 3;
- else if (atqa.uid_size == 1)
- uid_size = 2;
- else
- uid_size = 1;
-
- acf.sel_code = ISO14443A_AC_SEL_CODE_CL1;
-
- handle->priv.iso14443a.state = ISO14443A_STATE_ANTICOL_RUNNING;
- handle->priv.iso14443a.level = ISO14443A_LEVEL_CL1;
-
-cascade:
- iso14443a_code_nvb_bits(&acf.nvb, 16);
-
- ret = iso14443a_transcieve_acf(handle, &acf, &bit_of_col);
- if (ret < 0)
- return ret;
- DEBUGP("bit_of_col = %u\n", bit_of_col);
-
- while (bit_of_col != ISO14443A_BITOFCOL_NONE) {
- set_bit_in_field(&acf.uid_bits[0], bit_of_col-16);
- iso14443a_code_nvb_bits(&acf.nvb, bit_of_col);
- ret = iso14443a_transcieve_acf(handle, &acf, &bit_of_col);
- DEBUGP("bit_of_col = %u\n", bit_of_col);
- if (ret < 0)
- return ret;
- }
+ rreq->req.flags = ;
+ rreq->req.command = ISO15693_CMD_WRITE_BLOCK_SINGLE;
+ memcpy(rreq->uid, handle->, ISO15693_UID_LEN);
+ rreq->blocknum = blocknr;
+ memcpy(rreq->);
- iso14443a_code_nvb_bits(&acf.nvb, 7*8);
- ret = iso14443a_transcieve(handle, (unsigned char *)&acf, 7,
- (unsigned char *) &sak, &rx_len,
- TIMEOUT, 0);
- if (ret < 0)
- return ret;
-
- if (sak[0] & 0x04) {
- /* Cascade bit set, UID not complete */
- switch (acf.sel_code) {
- case ISO14443A_AC_SEL_CODE_CL1:
- /* cascading from CL1 to CL2 */
- if (acf.uid_bits[0] != 0x88) {
- DEBUGP("Cascade bit set, but UID0 != 0x88\n");
- return -1;
- }
- memcpy(&uid[0], &acf.uid_bits[1], 3);
- acf.sel_code = ISO14443A_AC_SEL_CODE_CL2;
- handle->priv.iso14443a.level = ISO14443A_LEVEL_CL2;
- break;
- case ISO14443A_AC_SEL_CODE_CL2:
- /* cascading from CL2 to CL3 */
- memcpy(&uid[3], &acf.uid_bits[1], 3);
- acf.sel_code = ISO14443A_AC_SEL_CODE_CL3;
- handle->priv.iso14443a.level = ISO14443A_LEVEL_CL3;
- break;
- default:
- DEBUGP("cannot cascade any further than CL3\n");
- handle->priv.iso14443a.state = ISO14443A_STATE_ERROR;
- return -1;
- break;
- }
- goto cascade;
-
- } else {
- switch (acf.sel_code) {
- case ISO14443A_AC_SEL_CODE_CL1:
- /* single size UID (4 bytes) */
- memcpy(&uid[0], &acf.uid_bits[0], 4);
- break;
- case ISO14443A_AC_SEL_CODE_CL2:
- /* double size UID (7 bytes) */
- memcpy(&uid[3], &acf.uid_bits[0], 4);
- break;
- case ISO14443A_AC_SEL_CODE_CL3:
- /* triple size UID (10 bytes) */
- memcpy(&uid[6], &acf.uid_bits[0], 4);
- break;
- }
- }
+}
- handle->priv.iso14443a.level = ISO14443A_LEVEL_NONE;
- handle->priv.iso14443a.state = ISO14443A_STATE_SELECTED;
+static int
+iso15693_lock_block()
+{
+}
- {
- int uid_len;
- if (uid_size == 1)
- uid_len = 4;
- else if (uid_size == 2)
- uid_len = 7;
- else
- uid_len = 10;
+#endif
- DEBUGP("UID %s\n", rfid_hexdump(uid, uid_len));
- }
+static int
+iso15693_anticol(struct rfid_layer2_handle *handle)
+{
+ return -1;
+}
- if (sak[0] & 0x20) {
- DEBUGP("we have a T=CL compliant PICC\n");
- handle->priv.iso14443a.tcl_capable = 1;
- } else {
- DEBUGP("we have a T!=CL PICC\n");
- handle->priv.iso14443a.tcl_capable = 0;
+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
-iso14443a_hlta(struct rfid_layer2_handle *handle)
+iso15693_setopt(struct rfid_layer2_handle *handle, int optname,
+ const void *optval, unsigned int optlen)
{
- int ret;
- unsigned char tx_buf[2] = { 0x50, 0x00 };
- unsigned char rx_buf[10];
- unsigned int rx_len = sizeof(rx_buf);
-
+ 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;
+}
- ret = iso14443a_transcieve(handle, tx_buf, sizeof(tx_buf),
- rx_buf, &rx_len, 1000 /* 1ms */, 0);
- if (ret < 0) {
- /* "error" case: we don't get somethng back from the card */
- return 0;
- }
- return -1;
+static int transceive_inventory(struct rfid_layer2_handle *l2h)
+{
}
-#endif
static struct rfid_layer2_handle *
iso15693_init(struct rfid_reader_handle *rh)
{
int ret;
- struct rfid_layer2_handle *h = malloc(sizeof(*h));
+ struct rfid_layer2_handle *h = malloc_layer2_handle(sizeof(*h));
if (!h)
return NULL;
h->l2 = &rfid_layer2_iso15693;
h->rh = rh;
h->priv.iso15693.state = ISO15693_STATE_NONE;
-
ret = h->rh->reader->iso15693.init(h->rh);
if (ret < 0) {
- free(h);
+ free_layer2_handle(h);
return NULL;
}
static int
iso15693_fini(struct rfid_layer2_handle *handle)
{
- free(handle);
+ free_layer2_handle(handle);
return 0;
}
-struct rfid_layer2 rfid_layer2_iso15693 = {
+const struct rfid_layer2 rfid_layer2_iso15693 = {
.id = RFID_LAYER2_ISO15693,
.name = "ISO 15693",
.fn = {
.init = &iso15693_init,
- //.open = &iso15693_anticol,
- //.transcieve = &iso15693_transcieve,
+ .open = &iso15693_anticol,
+ //.transceive = &iso15693_transceive,
//.close = &iso14443a_hlta,
.fini = &iso15693_fini,
+ .setopt = &iso15693_setopt,
+ .getopt = &iso15693_getopt,
},
};
projects / librfid / blobdiff