/**
 * \file
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 *
 * \author Andrea Grandi <andrea@develer.com>
 *
 * \brief Tag protocol. (interface).
 *
 * $WIZ$ module_name = "keytag"
 * $WIZ$ module_configuration = "bertos/cfg/cfg_keytag.h"
 * $WIZ$ module_depends = "kfile"
 * $WIZ$ module_hw = ""
 */

#ifndef NET_KEYTAG_H
#define NET_KEYTAG_H

#include "cfg/cfg_keytag.h"
#include <cfg/compiler.h>

#include <io/kfile.h>


/**
 * Structure of a Tag packet
 */
typedef struct TagPacket
{
	KFile *tag;                        ///< Tag communication channel
	KFile *host;                       ///< Host communication channel
	bool sync;                         ///< Status flag: true if we find an STX
	size_t len;                        ///< Packet lenght
	uint8_t buf[CONFIG_TAG_MAX_LEN];   ///< Reception buffer
} TagPacket;

void keytag_init(struct TagPacket *pkt, struct KFile *comm, struct KFile *tag);
int keytag_recv(struct TagPacket *pkt, uint8_t *tag, size_t len);

DEPRECATED void keytag_poll(struct TagPacket *pkt);

#endif /* NET_TAG_H */