serial.h

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/*
 * Copyright (C) 2020 Benjamin Valentin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#ifdef __cplusplus
extern "C" {
#endif

#define RIOTBOOT_CMD_BOOT       'b'

#define RIOTBOOT_CMD_ERASE      'e'

#define RIOTBOOT_CMD_WRITE      'w'

#define RIOTBOOT_CMD_GET_PAGE   'P'

#define RIOTBOOT_STAT_OK        '.'
#define RIOTBOOT_STAT_BAD_CRC   '?'
#define RIOTBOOT_STAT_ILLEGAL   '!'

/* sent to stop auto-boot */
#define RIOTBOOT_ENTER_LOADER   'B'
/* sent to probe if auto-boot is paused and riotboot is active */
#define RIOTBOOT_PROBE          '?'
 
/* continuously sent by riotboot before booting */
#define RIOTBOOT_STAT_WAITING   'b'
/* indicates riotboot is ready to accept commands */
#define RIOTBOOT_STAT_READY     '>'

#ifndef RIOTBOOT_CRC8_POLY
#define RIOTBOOT_CRC8_POLY      (0x31)
#endif

int riotboot_serial_loader(void);
 
#ifdef __cplusplus
}
#endif