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6f440df0
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meri
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/* AT91SAM7 "presence reader" firmware for OpenPCD
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*
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* (C) 2006 by Milosch Meriac <meriac@openpcd.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_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/pcd_enumerate.h>
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#include <os/usb_handler.h>
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#include <pcd/rc632_highlevel.h>
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#include <librfid/rfid_reader.h>
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#include <librfid/rfid_layer2.h>
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#include "../openpcd.h"
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#include <os/main.h>
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#define RAH NULL
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373c172a
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Harald Welte
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uint32_t delay_scan,delay_blink,last_uid,last_polled_uid;
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6f440df0
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meri
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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 int usb_presence_rx(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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switch (poh->cmd)
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{
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case OPENPCD_CMD_PRESENCE_UID_GET:
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DEBUGPCRF("get presence UID");
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poh->flags |= OPENPCD_FLAG_RESPOND;
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if(last_polled_uid)
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{
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rctx->tot_len += 4;
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373c172a
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Harald Welte
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poh->data[0]=(uint8_t)(last_polled_uid>>24);
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poh->data[1]=(uint8_t)(last_polled_uid>>16);
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poh->data[2]=(uint8_t)(last_polled_uid>> 8);
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poh->data[3]=(uint8_t)(last_polled_uid );
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6f440df0
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meri
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last_polled_uid=0;
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}
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break;
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default:
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DEBUGP("UNKNOWN ");
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return USB_ERR(USB_ERR_CMD_UNKNOWN);
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break;
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}
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if (poh->flags & OPENPCD_FLAG_RESPOND)
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return USB_RET_RESPOND;
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return 0;
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}
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void _init_func(void)
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{
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DEBUGPCRF("enabling RC632");
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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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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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DEBUGPCRF("registering USB handler");
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usb_hdlr_register(&usb_presence_rx, OPENPCD_CMD_CLS_PRESENCE);
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delay_scan=delay_blink=0;
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last_uid=0;
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}
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int _main_dbgu(char key)
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{
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unsigned char value;
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switch (key) {
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case '4':
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AT91F_DBGU_Printk("Testing RC632 : ");
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if (rc632_test(RAH) == 0)
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AT91F_DBGU_Printk("SUCCESS!\n\r");
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else
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AT91F_DBGU_Printk("ERROR!\n\r");
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break;
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case '5':
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opcd_rc632_reg_read(RAH, RC632_REG_RX_WAIT, &value);
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DEBUGPCR("Reading RC632 Reg RxWait: 0x%02xr", value);
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break;
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case '6':
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DEBUGPCR("Writing RC632 Reg RxWait: 0x55");
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opcd_rc632_reg_write(RAH, RC632_REG_RX_WAIT, 0x55);
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break;
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case '7':
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rc632_dump();
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break;
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}
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return -EINVAL;
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}
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void _main_func(void)
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{
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373c172a
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Harald Welte
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uint32_t uid;
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6f440df0
|
meri
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int status;
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status = rfid_layer2_open(l2h);
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if (status >= 0 && l2h->uid_len==4)
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{
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373c172a
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Harald Welte
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uid=((uint32_t)l2h->uid[0]) |
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((uint32_t)l2h->uid[1])<< 8|
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((uint32_t)l2h->uid[2])<<16|
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((uint32_t)l2h->uid[3])<<24;
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6f440df0
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meri
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delay_scan=100;
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if(uid!=last_uid)
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{
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last_uid=last_polled_uid=uid;
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delay_blink=10;
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DEBUGPCR("UID:0x%08X", uid);
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}
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}
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else
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if(delay_scan)
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delay_scan--;
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else
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last_uid=0;
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led_switch(1,(delay_blink==0)?1:0);
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if(delay_blink)
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delay_blink--;
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/* first we try to get rid of pending to-be-sent stuff */
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usb_out_process();
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| 160 |
8ac31009
|
Holger Hans Peter Freyther
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/* next we deal with incoming requests from USB EP1 (OUT) */
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| 161 |
6f440df0
|
meri
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usb_in_process();
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rc632_unthrottle();
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}
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