4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2008 Develer S.r.l. (http://www.develer.com/)
33 * \author Andrea Grandi <andrea@develer.com>
35 * \brief Tag protocol. (interface).
41 #include <kern/kfile.h>
45 * Starting communication char (STX).
50 * Ending communication char (ETX).
57 #define TAG_MAX_LEN 14
61 * Max number of chars to print in the communication serial
63 #define TAG_MAX_PRINT_CHARS 12
66 * Structure of a Tag packet
68 typedef struct TagPacket
70 KFile *tag; ///< Tag communication channel
71 KFile *host; ///< Host communication channel
72 bool sync; ///< Status flag: true if we find an STX
73 uint16_t len; ///< Packet lenght
74 uint8_t buf[TAG_MAX_LEN]; ///< Reception buffer
77 void keytag_init(struct TagPacket *pkt, struct KFile *comm, struct KFile *tag);
78 void keytag_poll(struct TagPacket *pkt);
80 #endif /* NET_TAG_H */