164 lines
3.8 KiB
C
164 lines
3.8 KiB
C
/* AT91SAM7 "presence reader" firmware for OpenPCD
|
|
*
|
|
* (C) 2006 by Milosch Meriac <meriac@openpcd.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* 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
|
|
*
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <lib_AT91SAM7.h>
|
|
#include <librfid/rfid_layer2_iso14443a.h>
|
|
#include "rc632.h"
|
|
#include <os/dbgu.h>
|
|
#include <os/led.h>
|
|
#include <os/pcd_enumerate.h>
|
|
#include <os/usb_handler.h>
|
|
#include <pcd/rc632_highlevel.h>
|
|
|
|
#include <librfid/rfid_reader.h>
|
|
#include <librfid/rfid_layer2.h>
|
|
|
|
#include "../openpcd.h"
|
|
#include <os/main.h>
|
|
|
|
#define RAH NULL
|
|
|
|
uint32_t delay_scan,delay_blink,last_uid,last_polled_uid;
|
|
static struct rfid_reader_handle *rh;
|
|
static struct rfid_layer2_handle *l2h;
|
|
|
|
static int usb_presence_rx(struct req_ctx *rctx)
|
|
{
|
|
struct openpcd_hdr *poh = (struct openpcd_hdr *) rctx->data;
|
|
|
|
switch (poh->cmd)
|
|
{
|
|
case OPENPCD_CMD_PRESENCE_UID_GET:
|
|
DEBUGPCRF("get presence UID");
|
|
|
|
poh->flags |= OPENPCD_FLAG_RESPOND;
|
|
if(last_polled_uid)
|
|
{
|
|
rctx->tot_len += 4;
|
|
poh->data[0]=(uint8_t)(last_polled_uid>>24);
|
|
poh->data[1]=(uint8_t)(last_polled_uid>>16);
|
|
poh->data[2]=(uint8_t)(last_polled_uid>> 8);
|
|
poh->data[3]=(uint8_t)(last_polled_uid );
|
|
last_polled_uid=0;
|
|
}
|
|
break;
|
|
default:
|
|
DEBUGP("UNKNOWN ");
|
|
return USB_ERR(USB_ERR_CMD_UNKNOWN);
|
|
break;
|
|
}
|
|
|
|
if (poh->flags & OPENPCD_FLAG_RESPOND)
|
|
return USB_RET_RESPOND;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void _init_func(void)
|
|
{
|
|
DEBUGPCRF("enabling RC632");
|
|
rc632_init();
|
|
|
|
DEBUGPCRF("turning on RF");
|
|
rc632_turn_on_rf(RAH);
|
|
|
|
DEBUGPCRF("initializing 14443A operation");
|
|
rh = rfid_reader_open(NULL, RFID_READER_OPENPCD);
|
|
l2h = rfid_layer2_init(rh, RFID_LAYER2_ISO14443A);
|
|
|
|
DEBUGPCRF("registering USB handler");
|
|
usb_hdlr_register(&usb_presence_rx, OPENPCD_CMD_CLS_PRESENCE);
|
|
|
|
delay_scan=delay_blink=0;
|
|
last_uid=0;
|
|
}
|
|
|
|
int _main_dbgu(char key)
|
|
{
|
|
unsigned char value;
|
|
|
|
switch (key) {
|
|
case '4':
|
|
AT91F_DBGU_Printk("Testing RC632 : ");
|
|
if (rc632_test(RAH) == 0)
|
|
AT91F_DBGU_Printk("SUCCESS!\n\r");
|
|
else
|
|
AT91F_DBGU_Printk("ERROR!\n\r");
|
|
|
|
break;
|
|
case '5':
|
|
opcd_rc632_reg_read(RAH, RC632_REG_RX_WAIT, &value);
|
|
DEBUGPCR("Reading RC632 Reg RxWait: 0x%02xr", value);
|
|
|
|
break;
|
|
case '6':
|
|
DEBUGPCR("Writing RC632 Reg RxWait: 0x55");
|
|
opcd_rc632_reg_write(RAH, RC632_REG_RX_WAIT, 0x55);
|
|
break;
|
|
case '7':
|
|
rc632_dump();
|
|
break;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
void _main_func(void)
|
|
{
|
|
uint32_t uid;
|
|
int status;
|
|
|
|
status = rfid_layer2_open(l2h);
|
|
if (status >= 0 && l2h->uid_len==4)
|
|
{
|
|
uid=((uint32_t)l2h->uid[0]) |
|
|
((uint32_t)l2h->uid[1])<< 8|
|
|
((uint32_t)l2h->uid[2])<<16|
|
|
((uint32_t)l2h->uid[3])<<24;
|
|
|
|
delay_scan=100;
|
|
|
|
if(uid!=last_uid)
|
|
{
|
|
last_uid=last_polled_uid=uid;
|
|
delay_blink=10;
|
|
|
|
DEBUGPCR("UID:0x%08X", uid);
|
|
}
|
|
}
|
|
else
|
|
if(delay_scan)
|
|
delay_scan--;
|
|
else
|
|
last_uid=0;
|
|
|
|
led_switch(1,(delay_blink==0)?1:0);
|
|
if(delay_blink)
|
|
delay_blink--;
|
|
|
|
/* first we try to get rid of pending to-be-sent stuff */
|
|
usb_out_process();
|
|
/* next we deal with incoming requests from USB EP1 (OUT) */
|
|
usb_in_process();
|
|
rc632_unthrottle();
|
|
}
|