/*
 * Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef _HDLC_H_
#define _HDLC_H_

#include <sys/types.h>

#include "lg-downloader.h"

/*
 * Values
 */

#define HDLC_FLAG						0x7e
#define HDLC_ESCAPE						0x7d
#define HDLC_ESCAPE_MASK					0x20

#define HDLC_CRC_SEED						0xffff
#define HDLC_CRC_FINAL						0xf0b8

#define HDLC_MIN_SIZE						12
#define HDLC_HEAD_SIZE						1
#define HDLC_TAIL_SIZE						3

/*
 * Functions
 */

int hdlc_send(struct context *context, const void *data, size_t size);
int hdlc_recv(struct context *context, void *data, size_t size);

#endif