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authormeri <meri@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>2007-04-10 21:50:12 +0000
committermeri <meri@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>2007-04-10 21:50:12 +0000
commit6f440df07f8c30de45e944736ca2a11ae9ce3c43 (patch)
treedd2fc523a42619357907b8bb5c936bfc8cbd859c /firmware/src/pcd
parentd10804d38f81d6aea3f5b0a570c0bb6ba2648159 (diff)
main_presence initial check in - continuous scanning for new tag id
git-svn-id: https://svn.openpcd.org:2342/trunk@306 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
Diffstat (limited to 'firmware/src/pcd')
-rw-r--r--firmware/src/pcd/main_presence.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/firmware/src/pcd/main_presence.c b/firmware/src/pcd/main_presence.c
new file mode 100644
index 0000000..f61878f
--- /dev/null
+++ b/firmware/src/pcd/main_presence.c
@@ -0,0 +1,163 @@
+/* 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
+
+u_int32_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]=(u_int8_t)(last_polled_uid>>24);
+ poh->data[1]=(u_int8_t)(last_polled_uid>>16);
+ poh->data[2]=(u_int8_t)(last_polled_uid>> 8);
+ poh->data[3]=(u_int8_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)
+{
+ u_int32_t uid;
+ int status;
+
+ status = rfid_layer2_open(l2h);
+ if (status >= 0 && l2h->uid_len==4)
+ {
+ uid=((u_int32_t)l2h->uid[0]) |
+ ((u_int32_t)l2h->uid[1])<< 8|
+ ((u_int32_t)l2h->uid[2])<<16|
+ ((u_int32_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 reqyests from USB EP1 (OUT) */
+ usb_in_process();
+ rc632_unthrottle();
+}