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/* main_mifare - OpenPCD firmware using in-firmware librfid
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*
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* (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <errno.h>
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#include <string.h>
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#include <lib_AT91SAM7.h>
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#include <librfid/rfid.h>
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#include <librfid/rfid_scan.h>
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#include <librfid/rfid_reader.h>
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#include <librfid/rfid_layer2.h>
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#include <librfid/rfid_protocol.h>
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//#include "rc632.h"
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#include <os/dbgu.h>
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#include <os/led.h>
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#include <os/pcd_enumerate.h>
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#include <os/trigger.h>
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#include <os/req_ctx.h>
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#include <pcd/rc632.h>
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#include "../openpcd.h"
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static struct rfid_reader_handle *rh;
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static struct rfid_layer2_handle *l2h;
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static struct rfid_protocol_handle *ph;
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static uint8_t sector = 0;
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void _init_func(void)
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{
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trigger_init();
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rc632_init();
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rc632_test(NULL);
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DEBUGP("opening reader ");
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#if 1
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rh = rfid_reader_open(NULL, RFID_READER_OPENPCD);
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DEBUGP("rh=%p ", rh);
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#endif
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led_switch(2, 1);
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}
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int _main_dbgu(char key)
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{
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int ret = -EINVAL;
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switch (key) {
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case 'j':
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ret = 0;
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if (sector > 0);
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sector--;
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break;
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case 'k':
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ret = 0;
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if (sector < 15)
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sector++;
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break;
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}
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return ret;
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}
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struct openpcd_l2_connectinfo {
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uint32_t proto_supported;
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uint8_t speed_rx;
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uint8_t speed_tx;
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uint8_t uid_len;
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uint8_t uid[10];
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} __attribute__ ((packed));
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struct openpcd_proto_connectinfo {
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} __attribute__ ((packed));
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struct openpcd_proto_tcl_connectinfo {
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uint8_t fsc;
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uint8_t fsd;
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uint8_t ta;
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uint8_t sfgt;
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uint8_t flags;
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uint8_t cid;
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uint8_t nad;
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uint8_t ats_tot_len;
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uint8_t ats_snippet[0];
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} __attribute__ ((packed));
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/* mifare classic helper */
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static int
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mifare_classic_read_sector(struct rfid_protocol_handle *ph, int sector)
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{
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unsigned char buf[20];
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unsigned int len = sizeof(buf);
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int ret;
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int block;
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/* FIXME: make this work for sectors > 31 */
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DEBUGPCR("Reading sector %u", sector);
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for (block = sector*4; block < sector*4+4; block++) {
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DEBUGP("Reading block %u: ", block);
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ret = rfid_protocol_read(ph, block, buf, &len);
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if(ret == -ETIMEDOUT)
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DEBUGPCR("TIMEOUT");
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if (ret < 0) {
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DEBUGPCR("Error %d reading", ret);
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return ret;
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}
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DEBUGPCR("Page 0x%x: %s", block, hexdump(buf, len));
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}
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return 0;
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}
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static int init_proto(void)
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{
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struct req_ctx *detect_rctx;
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struct openpcd_hdr *opcdh;
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struct openpcd_l2_connectinfo *l2c;
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struct openpcd_proto_connectinfo *pc;
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unsigned int size;
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l2h = rfid_layer2_scan(rh);
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if (!l2h)
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return 0;
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DEBUGP("l2='%s' ", rfid_layer2_name(l2h));
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detect_rctx = req_ctx_find_get(0, RCTX_STATE_FREE,
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RCTX_STATE_LIBRFID_BUSY);
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if (detect_rctx) {
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unsigned int uid_len;
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opcdh = (struct openpcd_hdr *) detect_rctx->data;
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l2c = (struct openpcd_l2_connectinfo *)
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(char *) opcdh + sizeof(opcdh);
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l2c->uid_len = sizeof(l2c->uid);
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opcdh->cmd = OPENPCD_CMD_LRFID_DETECT_IRQ;
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opcdh->flags = 0x00;
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opcdh->reg = 0x03;
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opcdh->val = l2h->l2->id;
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detect_rctx->tot_len = sizeof(*opcdh) + sizeof(*l2c);
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#if 0
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/* copy UID / PUPI into data section */
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rfid_layer2_getopt(l2h, RFID_OPT_LAYER2_UID, (void *)l2c->uid,
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&uid_len);
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l2c->uid_len = uid_len & 0xff;
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size = sizeof(l2c->proto_supported);
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rfid_layer2_getopt(l2h, RFID_OPT_LAYER2_PROTO_SUPP,
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&l2c->proto_supported, &size);
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switch (l2h->l2->id) {
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case RFID_LAYER2_ISO14443A:
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break;
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case RFID_LAYER2_ISO14443B:
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break;
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case RFID_LAYER2_ISO15693:
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break;
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}
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#endif
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req_ctx_set_state(detect_rctx, RCTX_STATE_UDP_EP3_PENDING);
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} else
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DEBUGPCRF("=>>>>>>>>>>>>>>no req_ctx for L2!");
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ph = rfid_protocol_scan(l2h);
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if (!ph)
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return 3;
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DEBUGP("p='%s' ", rfid_protocol_name(ph));
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detect_rctx = req_ctx_find_get(0, RCTX_STATE_FREE,
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RCTX_STATE_LIBRFID_BUSY);
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if (detect_rctx) {
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opcdh = (struct openpcd_hdr *) detect_rctx->data;
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pc = (struct openpcd_proto_connectinfo *)
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((char *) opcdh + sizeof(*opcdh));
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detect_rctx->tot_len = sizeof(*opcdh) + sizeof(*pc);
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opcdh->cmd = OPENPCD_CMD_LRFID_DETECT_IRQ;
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opcdh->flags = 0x00;
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opcdh->reg = 0x04;
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opcdh->val = ph->proto->id;
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/* copy L4 info into data section */
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#if 0
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switch (ph->proto->id) {
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case RFID_PROTOCOL_TCL: {
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struct openpcd_proto_tcl_connectinfo *ptc
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= (struct openpcd_proto_tcl_connectinfo *)
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((char *) ph + sizeof(*ph));
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unsigned int space;
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detect_rctx->tot_len += sizeof(*ptc);
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space = detect_rctx->size - sizeof(*opcdh)-sizeof(*pc);
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size = space;
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rfid_protocol_getopt(ph, RFID_OPT_P_TCL_ATS,
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&ptc->ats_snippet, &size);
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if (size == space) {
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/* we've only copied part of the ATS */
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size = sizeof(ptc->ats_tot_len);
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rfid_protocol_getopt(ph,
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RFID_OPT_P_TCL_ATS_LEN,
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&ptc->ats_tot_len, &size);
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} else {
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ptc->ats_tot_len = size;
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}
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} break;
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}
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#endif
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req_ctx_set_state(detect_rctx, RCTX_STATE_UDP_EP3_PENDING);
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} else
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DEBUGPCRF("=>>>>>>>>>>>>>>no req_ctx for L2!");
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led_switch(1, 1);
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if (ph->proto->id == RFID_PROTOCOL_MIFARE_CLASSIC) {
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int rc;
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DEBUGPCR("Authenticating sector %u: ", sector);
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rc = mfcl_set_key(ph, MIFARE_CL_KEYA_DEFAULT_INFINEON);
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if (rc < 0) {
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DEBUGPCR("key format error");
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return 4;
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}
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rc = mfcl_auth(ph, RFID_CMD_MIFARE_AUTH1A, sector*4);
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if (rc < 0) {
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DEBUGPCR("mifare auth error");
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return 4;
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} else
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DEBUGPCR("mifare auth succeeded!\n");
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mifare_classic_read_sector(ph, sector);
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return 5;
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}
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return 4;
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}
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static int opcd_lrfid_usb_in(struct req_ctx *rctx)
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{
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struct openpcd_hdr *poh = (struct openpcd_hdr *) rctx->data;
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return 0;
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}
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void _main_func(void)
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{
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int ret;
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usb_out_process();
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usb_in_process();
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ret = init_proto();
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if (ret >= 4)
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rfid_protocol_close(ph);
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if (ret >= 3)
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rfid_layer2_close(l2h);
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rc632_turn_off_rf(NULL);
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{ volatile int i; for (i = 0; i < 0xfffff; i++) ; }
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rc632_turn_on_rf(NULL);
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led_switch(1, 0);
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led_toggle(2);
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}
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