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/* main_reqa - OpenPCD firmware for generating an endless loop of
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* ISO 14443-A REQA packets.
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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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/* If a response is received from the PICC, LED2 (green) will be switched
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* on. If no valid response has been received within the timeout of the
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* receiver, LED1 (Red) will be toggled.
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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 <librfid/rfid_layer2_iso14443a.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/trigger.h>
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#include <os/pcd_enumerate.h>
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#include <os/main.h>
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#include <pcd/rc632_highlevel.h>
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38
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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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42
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#define RAH NULL
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44
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static struct rfid_reader_handle *rh;
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static struct rfid_layer2_handle *l2h;
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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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DEBUGPCRF("turning on RF");
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rc632_turn_on_rf(RAH);
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/* FIXME: do we need this? */
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DEBUGPCRF("initializing 14443A operation");
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rh = rfid_reader_open(NULL, RFID_READER_OPENPCD);
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l2h = rfid_layer2_init(rh, RFID_LAYER2_ISO14443A);
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58
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/* Switch to 848kBps (1subcp / bit) */
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//opcd_rc632_clear_bits(RAH, RC632_REG_RX_CONTROL1, RC632_RXCTRL1_SUBCP_MASK);
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}
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int _main_dbgu(char key)
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{
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static char ana_out_sel;
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int ret = -EINVAL;
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67
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switch (key) {
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case 'q':
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ana_out_sel--;
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ret = 1;
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break;
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case 'w':
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ana_out_sel++;
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ret = 1;
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break;
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case 'c':
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rc632_turn_on_rf(RAH);
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break;
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case 'o':
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rc632_turn_off_rf(RAH);
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break;
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}
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84
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if (ana_out_sel >= 0xd)
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ana_out_sel = 0;
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87
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if (ret == 1) {
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ana_out_sel &= 0x0f;
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DEBUGPCR("switching to analog output mode 0x%x\n", ana_out_sel);
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opcd_rc632_reg_write(RAH, RC632_REG_TEST_ANA_SELECT, ana_out_sel);
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}
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93
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return ret;
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}
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96
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void _main_func(void)
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{
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#if 1
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struct iso14443a_atqa atqa;
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101
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memset(&atqa, 0, sizeof(atqa));
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103
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trigger_pulse();
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105
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if (iso14443a_transceive_sf(l2h, ISO14443A_SF_CMD_WUPA, &atqa) < 0) {
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DEBUGPCRF("error during transceive_sf");
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led_switch(1, 0);
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} else {
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DEBUGPCRF("received ATQA: %s\n", hexdump((char *)&atqa, sizeof(atqa)));
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led_switch(1, 1);
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}
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#endif
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led_toggle(2);
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}
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